Title of Invention

DERIVATIVES OF AMINOINDAZOLES, METHOD OF PREPARATION AND INTERMEDIATES OF THE METHOD AS DRUGS AND PHARMACEUTICAL COMPOUNDS CONTAINING THEM

Abstract ABSTRACT 1977/CHENP/2004 "DERIVATIVES OF AMINOINDAZOLES, METHOD OF PREPARATION AND INTERMEDIAES OF THE METHOD AS DRUGS AND PHARMACEUTICAL COMPOUNDS CONTAINING THEM" The invention relates to novel indazole derivatives having general formula (i): wherein r is 0,S or NH; Rl is an alkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, aryl, heterocycle, alkenyl, etc., radical; said radicals being optionally substituted with 1 or more substituents ; R4, R5, R6 and R7 are selected independently from the following radicals; hydrogen, halogen,CN. NO<SUB>2</SUB>, NH<SUB>2</SUB>, OH, COOH, C(0)0R8, -0C(0)R8, NHC0(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8,S0<SUB>2</SUB>R8, NHSO<SUB>2</SUB>R8, S02NR8R9,trifluoromethyl, trifluoromethoxy, alkyl, alcoxy, aryl, arylalkyl, heteroaryl, heteroarylalkyl, hetero-cycle, cycloalkyl, alkenyl, etc. said radicals being optionally substituted with 1 or more substituents,
Full Text Aminoindazole derivatives., preparation process and intermediates of this process as medicinal products, and pharmaceutical compositions containing
them
The present invention relates to the use of aminoindazole derivatives of formula (I):

The invention relates to the use of the aminoindazole derivatives of formula (I) and the pharmaceutically acceptable salts thereof for the preparation of pharmaceutical compositions for preventing and treating diseases that may result from an abnormal activity of kinases, such as, for example, those involved in neurodegenerative diseases, Alzheimer's disease, Parkinson's disease, frontoparietal dementia, corticobasal degeneration. Pick's disease, strokes, cranial and spinal trauma and peripheral neuropathies, obesity, metabolic diseases type II diabetes, essential hypertension, atherosclerotic cardiovascular diseases, polycystic ovarian syndrome, syndrome X, immunodeficiency and cancer, to the pharmaceutical compositions containing the novel aminoindazole derivatives and the pharmaceutically acceptable salts thereof, and to the novel aminoindazoles and the pharmaceutically acceptable salts thereof
The present invention relates to the aminoindazole derivatives of formula (I) in
which:

R is either 0, S or NH
R3 is a (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyI, aryl or heteroaryl fused to a cycloalkyl (1-lOC), heterocycle, cycloalkyl, adamantyl, polycycloalkyls, alkenyl, alkynyl radical; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, 0R8, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R4, R5, R6 and R7 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl, alkenyl, alkynyl, adamantyl,, polycycloalkyls; these radicals . being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rll are, independently of each other, a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves optionally being substituted with one or more substituents chosen from halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
with the exception of 3-(2-nitrobenzamido)indazole, 3-(2-aminobenzamido)indazole,
3-(2-nitrobenzamido)indazole, 3-(4-chloro-2-nitrobenzamido)indazole, 3-(5-chloro-2-
nitrobenzamido)indazole, 3-(2-aminobenzamido)indazole, 3-(2-amino-4-
chlorobenzamido)indazole, 3-(2-amino-5-chlorobenzamido)indazole, 3-(benzamido)-indazole, 3-(4-methylbenzamido)indazole, 3-(4-chlorobenzamido)indazole, 3-(4-

nitrobenzamido)indazole, 3-acetamidoindazole, N-(lH-indazol-3-yl)butanamide, N-(lH-indazol-3-yl)phenylacetamide, N-(lH-indazol-3-yl)benzhydrylacetaniide, 3-acetamidoindazole, 5-amino-3-acetamidoindazole, 3-(2-hydroxybenzamido)indazole, N-(6-chloro-lH-indazol-3-yl)-2,2,2-trifluoroacetamide, N-(6-chloro-lH-indazol-3-yl)-2-furancarboxamide, N-(6-chloro-1 H-indazol-3-yl)-2,2,2-trifluoroacetamide, N-(6-chloro-lH-indazol-3-yl)-2-thiophenecarboxamide, N-(6-chloro-lH-indazol-3-yl)-2,2,2-trifluoroacetamide, N-(6-chloro-lH-indazol-3-yl)-4-(hexyloxy)benzamide, 3-chloro-N-(6-chloro-lH-indazol-3-yl)benzamide, 4-chloro-N-(6-chloro-lH-indazol-3-yl)benzamide and N-(5-mtro-lH-mdazol-3-yl)acetamide;
to the isomers thereof, the mixtures thereof, the racemic mixtures, enantiomers, diastereoisomers and tautomers thereof, and also the pharmaceutically acceptable salts thereof.
More particularly, the present invention relates to the aminoindazole derivatives of formula (I) in which:
R is either 0, S or NH
R3 is a (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, cycloalkyl, alkenyl or alkynyl radical; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, 0R8, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R4 and R7 are hydrogen;
R5 and R6 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl,

cycloalkyl, heterocycle, alkenyl, alkynyl, adamantyl, polycycloalkyl; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rll are, independently of each other, a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more substituents chosen from halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
with the exception of 3-(2-nitrobenzamido)indazole, 3-(2-aminobenzamido)indazole,
3-(2-nitrobenzamido)indazole, 3-(4-chloro-2-nitrobenzamido)indazole, 3-(5-chloro-2-
nitrobenzamido)indazole, 3-(2-aminobenzamido)indazole, 3-(2-amino-4-
chlorobenzamido)indazole, 3-(2-amino-5-chlorobenzamido)indazole, 3-(benzamido)-indazole, 3-(4-methylbenzamido)indazole, 3-(4-chlorobenzamido)indazole, 3-(4-nitrobenzamido)indazole, 3-acetamidoindazole, N-(lH-indazol-3-yl)butanamide, N-(lH-indazol-3-yl)phenylacetamide, N-(lH-indazol-3-yl)benzhydrylacetamide, 3-acetamidoindazole, 5-amino-3-acetamidoindazole, 3-(2-hydroxybenzamido)indazole, N-(6-chloro-lH-indazol-3-yl)-2,2,2-trifluoroacetamide, N-(6-chloro-lH-indazol-3-yl)-2-frirancarboxamide, N-(6-chloro-lH-indazol-3-yl)-2,2,2-trifluoroacetamide, N-(6-chloro-lH-indazol-3-yl)-2-thiophenecarboxamide, N-(6-chloro-lH-indazol-3-yl)-2,2,2-trifluoroacetamide, N-(6-chloro-lH-indazol-3-yl)-4-(hexyloxy)benzamide, 3-chloro-N-(6-chloro-lH-indazol-3-yl)benzamide, 4-chloro-N-(6-chloro-lH-indazol-3-yl)benzamide and N-(5-nitro-lH-indazol-3-yl)acetamide;
to the isomers thereof, the mixtures thereof, the racemic mixtures, enantiomers, diastereoisomers and tautomers thereof, and also the pharmaceutically acceptable salts thereof
Preferably, the present invention relates to the aminoindazole derivatives of formula (I) in which:

RisO
R4 and R7 are H
R3 is a (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl or alkenyl radical; these radicals being optionally substituted with one or more substituents chosen irom halogen, CN, NO2, NH2, OH, 0R8, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R5 and R6 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (1-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl, alkenyl; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rll are, independently of each other, a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more substituents chosen from halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
with the exception of 3-(2-nitrobenzamido)indazole, 3-(2-aminobenzamido)indazole,
3-(2-nitrobenzamido)indazole, 3-(4-chloro-2-nitrobenzamido)indazole, 3-(5-chloro-2-
nitrobenzamido)indazole, 3-(2-aminobenzamido)indazole, 3-(2-amino-4-
chlorobenzamido)indazole, 3-(2-amino-5-chlorobenzamido)indazole, 3-(benzamido)-indazole, 3-(4-methylbenzamido)indazole, 3-(4-chlorobenzamido)inda2ole, 3-(4-

nitrobenzamido)indazole, 3-acetamidoindazole, N-(lH-inda2ol-3-yl)butanamide, N-(lH-indazol-3-yl)phenylacetainide, N-(lH-indazol-3-yl)benzhydrylacetamide, 3-acetamidoindazole, 5-amino-3-acetamidoindazole, 3-(2-hydroxybenzamido)indazole, N-(6-chloro-lH-indazol-3-yl)-2,2,2-trifluoroacetamide, N-(6-chloro-lH-indazol-3-yl)-2-flirancarboxamide, N-(6-chloro-lH-indazol-3-yl)-2,2,2-trifluoroacetamide, N-(6-chloro-lH-indazol-3-yl)-2-thiophenecarboxamide, N-(6-chloro-lH-indazol-3-yl)-2,2,2-trifluoroacetainide, N-(6-chloro-lH-indazol-3-yl)-4-(hexyloxy)benzamide, 3-chloro-N-(6-chloro-lH-indazol-3-yl)benzamide, 4-chloro-N-(6-chloro-lH-indazol-3-yl)benzamide and N-(5-mtro-lH-indazol-3-yl)acetamide;
to the racemic mixtures, enantiomers, diastereoisomers and mixtures thereof, the tautomers thereof and also the pharmaceutically acceptable salts thereof

R3 is a (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, aryl or heteroaryl fused to a cycloalkyl (1-lOC), heterocycle, cycloalkyl, adamantyl, polycycloalkyls, alkenyl, alkynyl radical; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, 0R8, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluorimethylsulphanyl and tri fluoromethoxy;

R4, R5, R6 and R7 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl, alkenyl, alkynyl, adamantyl, polycycloalkyls; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rll are, independently of each other, a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more substituents chosen from halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
to the isomers thereof, the mixtures thereof, the racemic mixtures, enantiomers, diastereoisomers and tautomers thereof, and also the pharmaceutically acceptable salts thereof, for the preparation of medicinal products.
More particularly, the present invention relates to the use of the aminoindazole derivatives of formula (I) in which:
R is either O, S or NH
R3 is a (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, :ycloalkyl, alkenyl or alkynyl radical; these radicals being optionally substituted with 3ne or more substituents chosen from halogen, CN, NO2, NH2, OH, 0R8, COOH, :(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, SOsRS, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, leteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;

R4 and R7 are hydrogen;
R5, R6 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, cycloalkyl, heterocycle, alkenyl, alkynyl, adamantyl, polycycloalkyl; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rll are, independently of each other, a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more substituents chosen from halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
to the isomers thereof, the mixtures thereof, the racemic mixtures, enantiomers, diastereoisomers and tautomers thereof, and also the pharmaceutically acceptable salts thereof, for the preparation of medivcinal products.
Preferably also, the present invention relates to the aminoindazole derivatives of ibrmula (I) in which:
lisO
l4andR7areH
G is un (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, leterocycle, cycloalkyl or alkenyl radical; these radicals being optionally substituted /ith one or more substituents chosen from halogen, CN, NO2, NH?, OH, 0R8, :00H, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8,

SO2R8, NHSO2R8, S02NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, fonnyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R5 and R6 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, N02, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (1-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl, alkenyl; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rll are, independenfly of each other, a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more substituents chosen from halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
to the racemic mixtures, enantiomers, diastereoisomers and mixtures thereof, the. tautomers thereof and the pharmaceutically acceptable salts thereof, for the preparation of medicinal products.
In the definitions hereinabove and hereinbelow, the alkyl(l-6C) radicals contain 1 to 6 carbon atoms in a straight or branched chain; the alkenyl radicals contain 2 to 6 carbon atoms and 1 to 3 conjugated or non-conjugated double bonds in a straight or branched chain; the alkynyl radicals contain 2 to 6 carbon atoms and 1 to 3 conjugated or non-conjugated triple bonds in a straight or branched chain; the aryl radicals are chosen from phenyl, naphthyl and indenyl and may be substituted with one or more halogens; the heteroaryl radicals are 3- to 10-membered, optionally containing one or more hetero atoms chosen from oxygen, sulphur and nitrogen, in particular thiazolyl, thienyl, pyrrolyl, pyridyl, furyl, imidazolyl, oxazolyl, pyrazinyl,

tetrazolyl; the halogen radical is either chlorine, iodine, fluorine or bromine; the polycycloalkyl radicals are chosen from adamantyl, quinuclidinyl, bomanyl, norbomanyl, bomenyl and norbomenyl; the heteroaryl radicals fused to a cycloalkyl (1-lOC) are chosen from indanyl isochromanyl, chromanyl, 1,2,3,4-tetrahydroisoquinolyl and 1,2,3,4-tetrahydroquinolyl; the heterocyclic radicals contain one or two hetero atoms chosen from oxygen, sulphur and nifrogen and in particular represent piperidyl, morpholinyl, pyrrolidinyl, imidazolidinyl, pyrrazolidinyl, isothiazolidinyl, thiazolidinyl, isoxazolidinyl, oxazolidinyl and piperazinyl.
The compounds of formula (I) contain one or more asymmetric carbons and may therefore be in the form of isomers, racemic mixtures, enantiomers and diastereoisomers; these forms also form part of the invention, as do mixtures thereof
Among the compounds of formula (I) that are useful according to the invention, mention may be made of the following compounds:
(2Z) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid
(2E) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid
ethyl (2E)4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoate
ethyl (2Z) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoate
4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butanoicacid
(2Z) 4-[(5-bromo-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid
(2E) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid
(2E) 4-[(5-bromo-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid
(2Z) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid
4-[(5-bromo-lH-indazol-3-yl)amino]-4-oxo-2-butanoicacid

(2E) N-(6-chloro-lH-indazol-3-yl)-2-butenaraide (2Z)N-(6-chloro-lH-mdazol-3-yl)-2-butenamide N-(6-chloro-lH-indazol-3-yl)-3-butenainide hydrochloride methyl 4-[(6-chloro- lH-indazol-3-yl)ainino]-4-oxo-2-butanoate N-(6-chloro-lH-indazol-3-yl)acetamide N-(6-chloro-1 H-mdazol-3-yl)butanainide (2E)N-(6-bromo-lH-indazol-3-yl)-2-butenamide (2E) N-(5-methyl- lH-indazol-3-yl)-2-butenamide (2Z) N-(6-bromo-1 H-mdazol-3-yl)-2-butenamide (2Z)N-(5-methyl-lH-mdazol-3-yl)-2-butenamide N-(6-chloro-lH-indazol-3-yl)-2-propanamide (2E)N-[6-(trifluoromethyl)-lH-indazol-3-yl]-2-butenainide (2Z)N-[6-(trifluoromethy)l-lH-indazol-3-yl]-2-butenamide ethyl 4-[[6-(trifluoromethyl)-lH-indazol-3-yl]amino]-4-oxobutanoate (2E) N-[5 -(trifluorom ethyl)-1 H-indazol-3 -yl] -2-butenamide (2Z)N-[5-(trifluoromethyl)-lH-indazol-3-yl]-2-butenamide N-[5-chIoro-lH-indazol-3-yl]-2-butanamide N-[4-chloro-lH-indazol-3-yl]butanamide N-[6-(trifluoromethyl)-lH-indazol-3-yl]butanamide N-[6-chloro-lH-indazol-3-yl]propenamide

N-
N-N-
N-:
N-
N-N-N-N-N-N-N-N-N-N-N-N-N-

5-(trifluoromethyl)-lH-indazol-3-yl]butanamide
5 -nitro-1 H-indazol-3-yl]butanamide
6-bromo-lH-indazol-3-yl]butanamide
6-(3-pyridyl)-lH-indazol-3-yl]butanamide
4-iodo-1 H-indazol-3 -yljbutanamide
6-phenyl-lH-indazol-3-yl]butanamide
6-bromo-5,7-dinitro-lH-indazol-3-yl]butanamide
6-bromo-7-nitro-lH-indazol-3-yl]butanamide
6-bromo-5-nitro-lH-indazol-3-yl]butanamide
6-(3-furyl)-1 H-indazol-3-yl]butanamide
6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide
6-(4-hydroxyphenyl)-1 H-indazol-3-yl]butanamide
6-chloro-lH-inda2ol-3-yl]benzenamide
6-(3,5-difluorophenyl)-lH-indazol-3-yl]butanamide
6-(3-thiophenyl)-lH-indazol-3-yl]butanamide
6-chloro-lH-indazol-3-yl]-2-thiopheneacetamide
5-[[3-(fluorophenyl)sulphonyl]amino]-lH-indazol-3-yl]benzamide
6-(2-chlorophenyl)-lH-indazol-3-yl]butanamide
6-(2-chloro-4-hydroxyphenyl)-1 H-indazol-3-yl]butanamide
6-(4-ethylphenyl)-lH-indazol-3-yl]butanamide

N-[6-(4-ethenylphenyl)-1 H-indazol-3-yl]butanamide
N-[6-(4pyridyl)- lH-indazol-3-yl]butanamide
N-[6-(phenylmethyI)-lH-indazol-3-yl]butanamide
N-[6-(4-aminophenyl)-lH-indazol-3-yl]butanamide
N-[6-(l-morpholino)'lH-indazol-3-yl]butanamide
N-[6-[(4-phenylethynyl)phenyl]-lH-indazol-3-yl]butanamide
N-[6-(2-propenyl)-lH-indazol-3-yl]butanamide
N-[5-amino-lH-indazol-3-yl]butanamide
N-[6-bromo-5-chloro-lH-indazol-3-yl]butanamide
N-[6-chloro-5-bromo-lH-indazol-3-yl]butanamide
N-[6-chIoro-5-nitro-lH-indazol-3-yl]butanamide
N-[6-(4-hydroxyphenyl)-5-bromo-lH-indazol-3-yl]butanamide
N-[6-(4-hydroxyphenyl)-5-(phenylamino)-lH-indazol-3-yl]butanamide
N-[6-(4-hydroxyphenyl)-5-(2-phenylethenyl)-lH-indazol-3-yl]butanamide
N-[6-(4-hydroxyphenyl)-5-phenylcarbonyl-lH-mdazol-3-yl]butananiide
N-[6-(4-hydroxyphenyl)-5-[3-(diinethylainino)propynyl]-lH-indazol-3-yljbutanamide
N-[6-chloro-lH-indazol-3-yl]-3-thiophenecarboxamide
N-[6-chloro-lH-indazol-3-yl]-2-pyridineacetamide
N-[6-chloro-lH-indazol-3-yl]-3-pyridinecarboxainide

N-[6-chloro-lH-indazol-3-yl]ben2eneacetamide
N-[6-chloro-lH-indazol-3-yl]benzenepropanamide
N-[6-chloro-lH-indazol-3-yl]-3-pyridineacetamide
N-[6-chloro-lH-indazol-3-yl]-2-chloroacetamide
N-[6-chloro-lH-indazol-3-yl]-4-morpholineacetamide
N-[6-chloro-lH-indazol-3-yl]-l-piperazineacetamide
N-[6-chloro-lH-indazol-3-yl]-4-[(2-methoxyethyl)amino]cyclohexanecarboxamide
4-amino-N-[6-chloro- lH-indazol-3-yl]-1 -piperidinecarboxamide
N-[6-chloro-lH-indazol-3-yI]-4-morpholinylcarboxamide
the isomers thereof, the mixtures thereof, the racemic mixtures, enantiomers, diastereoisomers and tautomers thereof, and also the pharmaceutically acceptable salts thereof,
and more particularly the following compounds
(2Z) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid
ethyl (2E) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoate
4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butanoic acid
(2Z) 4-[(5-bromo-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid
(2E) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid
4-[(5-bromo-lH-indazol-3-yl)amino]-4-oxo-2-butanoic acid
(2E)N-(6-chloro-lH-indazol-3-yl)-2-butenamide

N-N-N-N-N-N-N-N-N-N-
methyl 4-[(6-chloro-lH-indazol-3-yl)ammo]-4-oxo-2-butanoate N-(6-chloro-lH-indazol-3-yl)acetamide N-(6-chloro-lH-indazol-3-yl)butanamide (2E)N-(6-bromo-lH-mdazol-3-yl)-2-butenamide (2E) N-(5-methyl- lH-indazol-3-yI)-2-butenamide N-(6-chloro-lH-indazol-3-yl)-2-propanamide (2E) N-[6-(trifluoromethyl)-lH-indazol-3-yl]-2-butenamide ethyl 4-[[6-(trifluoromethyl)-],H-indazol-3-yl]amino]-4-oxobutanoate (2E)N-[5-(trifluoromethyl)-lH-mda2ol-3-yl]-2-butenamide
5-chloro-lH-indazol-3-yl]-2-butanamide
4-chloro-lH-indazol-3-yl]butanamide
6-(trifluoromethyl)-lH-indazol-3-yl]butanamide
6-chloro-lH-indazol-3-yl]propenamide
5 -(trifluorom ethyl)-1 H-indazol-3 -yljbutanamide
5-nitro-lH-indazol-3-yI]butanamide
6-bromo-lH-indazol-3-yl]butanamide
6-chloro-l-[[2-(triinethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide
6-(3-pyridyl)-1 H-indazol-3-yl]butanamide
4-iodo-lH-indazol-3-yl]butanainide

N-
N-;
N-N-■) N-N-N-N-N-N-N-N-N-N-N-N-N-N-N-N-

6-phenyl-1 H-indazol-S-ylJbutanamide
6-bromo-5,7-dinitro-lH-indazol-3-yl]butananiide
6-bromo-7-nitro-1 H-indazol-3-yl]butanamide
6-bromo-5-nitro-lH-indazol-3-yl]butanamide
(6-furan-3-yl)-lH-indazol-3-yl]butananiide
6-[4-(phenylmethoxy)phenyl]-lH-indazoI-3-yl]butanamide
6-(4-hydroxy-phenyl)-lH-indazol-3-yl]butanamide
6-chloro-lH-indazol-3-yl]benzenamide
[6-(3,5-difluorophenyl)-lH-indazol-3-yl]]butanamide
6-(3-thienyl)-1 H-indazol-3-yl]butanamide
6-chloro-lH-indazol-3-yl]-2-thiopheneacetamide
5-[[(3-fluorophenyl)sulphonyl]amino]-lH-indazol-3-yl]benzamide
6-(2-phenylethyl)-lH-indazol-3-yl]butanamide
6,7-difluoro-1 H-indazol-3-yl)butanamide
6-(4-niethoxyphenyl)-1 H-indazol-3-yl]butanamide
6-(4-methylthiophenyl)-lH-indazol-3-yl]butanamide
6-(4-trifluoromethoxyphenyl)-lH-indazol-3-yl]butanamide
(6-(l-propenyl)-lH-indazol-3-yl]butanamide
6-chloro-lH-indazol-3-yl]-2-pyridinecarboxamide
6-(4-fluorophenyl)-lH-indazol-3-yI]butan amide

N-[6-[4-(l,l-dimethylethyl)phenyl]-lH-indazol-3-yl]butanamide
N-[6-bromo-7-amino-lH-indazol-3-yl]butanamide
N-[6-[4-(trifluoromethyl)phenyl]-lH-indazol-3-yl]butanamide
N-[6-(4-methylphenyl)-lH-indazol-3-yl]butanamide
N-[6-(3,5-dichlorophenyl)-lH-indazol-3-yl]butanamide
N-[6-chloro-lH-indazol-3-yl]-3,5-dichlorobeiKainide
N-[6-(4-chlorophenyl)-lH-indazol-3-yl]butanamide
N-[6-chloro-1 H-indazol-3-yl]benzenepropanamide trifluoroacetate
N-[6-chloro-lH-indazol-3-yl]benzenepropanamide
N-[[6-(4-ethylphenyl)-lH-indazol-3-yl]]butanamide
N-[6-(4-pyridyl)-lH-indazol-3-yl]butanamide
N-(5-amino-lH-indazoI-3-yl)butanamide
N-(5-bromo-6-chloro-lH-indazol-3-yl)butanamide
N-(6-chloro-lH-indazol-3-yl)-2-thiophenecarboxamide
N-(6-chloro-lH-indazol-3-yl)-2-methylpropylamide
4-chloro-N-(6-chloro-lH-indazol-3-yl)butanamide
N-(5-phenyl-6-chloro-lH-indazol-3-yl)butanamide
N-[5-bromo-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide
N- [ 5 -bromo-6-(4-hydroxyphenyl)-1 H-indazol-3 -yljbutanamide
N-[[6-(4-nitrophenyl)-lH-indazol-3-yl]]butananiide

N-[6-(2-chlorophenyl)-1 H-mdazol-3-yl]butanamide
N-[6-[3-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide
N-[6-(3-hydroxyphenyl)-lH-indazol-3-yl]butanamide
N-[6-chloro-5-(4-pyridyl)-lH-inda2ol-3-yl]butanamide
N-[6-chloro-5-(3-furyl)-lH-indazol-3-yl]butanamide
N-[6-[2-chloro-4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide
N-[6-(2-chloro-4-hydroxyphenyl)-lH-indazol-3-yl]butanamide
N-[5,6-dibromo-lH-indazol-3-yl]butanamide
N-[6-chloro-lH-indazol-3-yl]-2,2,3,3,4,4,4-heptafluorobutanamide
N-[6-chloro-5-(4-fluorophenyl)-lH-indazol-3-yl]butanamide
N-[[6-(4-aminophenyl)-lH-indazol-3-yl]]butanamide
N-[6-[4-(dimethylamino)phenyl]-lH-indazol-3-yl]butanamide
N-(6-chloro-1 H-indazol-3 -yl)-4-methyl-1 -piperazineacetamide
N-(6-chloro-lH-indazol-3-yl)-l-piperidineacetamide
N-(6-chloro-lH-indazol-3-yl)-4-morpholineacetamide
N-(6-chloro-1 H-indazol-3-yl)-1H-1,2,4-triazole-1-acetamide
N-(6-chloro-lH-indazol-3-yl)-2-(cyclohexylammo)acetamide
2-[(phenylmethyl)amino]-N-(6-chloro-lH-indazol-3-yl)acetamide
N-(6-chloro-1 H-indazol-3-yl)-1 H-azepine-1 -acetamide
N-(6-chloro-1 H-indazol-3-yl)-1 -piperazineacetamide

N-(6-chloro-lH-indazol-3-yI)-2-[[3-(dimethylamino)propyI]amino]acetamide
N-(6-chloro-lH-indazol-3-yl)-thiomorpholine-4-acetamide
N-(6-chloro-lH-indazol-3-yl)-lpytTolidineacetamide
N-(6-chloro-lH-indazol-3-yl)-2-[[2-(dimethylamino)ethyl]ainino]acetamide
j N-(6-chloro-lH-indazol-3-yl)-l-cyclopropylaminoacetamidetrifluoroacetate
N-(6-chloro-lH-mdazol-3-yl)-l-cyclopropylaminoacetainide
N-(6-chloro-lH-indazol-3-yl)-2-(2-diethylaminoethylamino)acetamide tris(trifluoro-acetate)
N-(6-chloro-lH-indazol-3-yl)-2-(2-diethylaminoethylamino)acetamide,
N-[5,6-diphenyl-lH-indazol-3-yl]butanamide
N-[6-chloro-5-(4-methylphenyl)-lH-indazol-3-yl]butanamide
N-[5-phenyl-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide
N-[5-phenyl-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butan amide
N-[6-chloro-5-(4-pyridyl)-lH-indazol-3-yl]butanamide
N-[5-(4-aminophenyl)-6-chloro-lH-indazol-3-yl]butanamide
N-[6-chloro-5-(4-ethylphenyl)-lH-indazol-3-yl]butanamide
N-[6-chloro-5-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide
N-[6-chloro-5-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide
N-[5,6-bis[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide
N-[5,6-bis(4-hydroxyphenyl)-1 H-indazol-3-yl]butanamide

N-[5-(3-furyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide
N-[5-(3-furyl)-6-([4-hydroxyphenyl)-lH-mdazol-3-yl]butanamide
N-[5-(4-ethylphenyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide
N-[5-(4-ethylphenyl)-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide
N-[5-(3-pyridyl)-6-[4-(phenylinethoxy)phenyl]-lH-indazol-3-yl]butanainide
N-[5-(3-pyridyl)-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide
N-[5-(2-fliryl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide
N-[5-(2-fliryl)-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide
N-(5-bromo-6-chloro-7-nitro-lH-indazol-3-yl)butanamide
N-(5-bromo-6,7-difluoro-lH-indazol-3-yl)butanamide
N-[6-(4-cyanophenyl)-lH-indazol-3-yl]butanamide
N-(6,7-difluoro-5-nitro-lH-indazol-3-yl)butanamide
N-(6,7-difluoro-5-phenyl-lH-indazol-3-yl)butanamide
N-[6-(6-hydroxypyrid-3-yl)-lH-indazol-3-yl]butanamide
N-[6-(3,4-dihydroxyphenyl)-lH-indazol-3-yl]butanamide trifluoroacetate
N-[6-(3,4-dihydroxyphenyl)-lH-indazol-3-yl]butanamide
N-[7-fluoro-5-nitro-6-[2-(phenylethyl)amino]-lH-indazol-3-yl]butanamide
N-(7-fluoro-5-nitro-6-morpholino-lH-indazol-3-yl)butanamide
N-(7-fluoro-5-ammo-6-morpholino-1 H-indazol-3-yl)butanainide
N-(5-bromo-7-fluoro-6-morpholino-lH-indazol-3-yl)butanamide

N-[7-fluoro-6-(trifluoromethyl)-lH-indazol-3-yl]butanamide
N-(6-bromo-4,5,7-trifluoro-lH-indazol-3-yl)butanamide
N-[ 6-(6-aminopyrid-3-yl)-lH-indazol-3-yl]butanamide difluoroacetate
N-[ 6-(6-aminopyrid-3-yl)-lH-indazol-3-yl]butanainide
2-chloro-N-(6,7-difluoro-lH-indazol-3-yl)acetamide
N-(6,7-difluoro-1 H-indazol-3-yl)-1-piperidineacetamide
the isomers thereof, the mixtures thereof, the racemic mixtures, enantiomers, diastereoisomers and tautomers thereof, and also the pharmaceutically acceptable salts thereof.
The invention also relates to the pharmaceutical compositions containing, as active principle, a derivative of formula (I) for which, either
R is either O, S or NH
R3 is a (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, aryl or heteroaryl fused to a cycloalkyl (1-lOC), heterocycle, cycloalkyl, adamantyl, polycycloalkyl, alkenyl or alkynyl radical; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, 0R8, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R4, R5, R6 and R7 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl,

heterocycle, cycloalkyl, alkenyl, alkynyl, adamantyl, polycycloalkyls; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rll are, independently of each other, a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more substituents chosen from halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
to the isomers thereof, the mixtures thereof, the racemic mixtures, enantiomers, diastereoisomers and tautomers thereof, and also the pharmaceutically acceptable salts thereof.
More particularly, the present invention relates to the use of the aminoindazole derivatives of formula (I) in which:
R is either O, S or NH
R3 is a (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, cycloalkyl, alkenyl or alkynyl radical; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, 0R8, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R4 and R7 are hydrogen;
R5 and R6 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy.

(l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroan.'!, heteroaryl(l-6C)alkyl, cycloalkyl, heterocycle, alkenyl, alkynyl, adamantyl, polycycloalkyl; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rll are, independently of each other, a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more substituents chosen from halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, N02> NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
to the isomers thereof, the mixtures thereof, the racemic mixtures, enantiomers, diastereoisomers and tautomers thereof, and also the pharmaceutically acceptable salts thereof
Preferably, the present invention relates to the use of the aminoindazole derivatives of formula (I) in which:
RisO
R4 and R7 are H
R3 is a (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl or alkenyl radical; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, 0R8, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphany] and trifluoromethoxy;
R5 and R6 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9,

NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (1-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl, alkenyl; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO,NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rll are, independently of each other, a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more substituents chosen from halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
to the racemic mixtures, mixtures, enantiomers, diastereoisomers and mixtures thereof, tautomers thereof, and the pharmaceutically acceptable salts thereof
In the definitions hereinabove and hereinbelow, the alkyl and alkyl(l-6C) radicals contain 1 to 6 carbon atoms in a straight or branched chain; the alkenyl radicals contain 1 to 6 carbon atoms and 1 to 3 conjugated or non-conjugated double bonds in a straight or branched chain; the alkynyl radicals contain 1 to 6 carbon atoms and 1 to 3 conjugated or non-conjugated triple bonds in a straight or branched chain; the aryl radicals are chosen from phenyl, naphthyl and indenyl and may be substituted with one or more halogens; the heteroaryl radicals are 3- to 10-membered, optionally containing one or more hetero atoms chosen from oxygen, sulphur and nitrogen, in particular thiazolyl, thienyl, pyrrolyl, pyridyl, furyl, imidazolyl, oxazolyl, pyrazinyl, tetrazolyl; the halogen radical is either chlorine, iodine, fluorine or bromine; the polycycloalkyl radicals are chosen from adamantyl, quinuclidinyl, bomanyl, norbomanyl, bomenyl and norbomenyl; the heteroaryl radicals fused to a cycloalkyl (1-lOC) are chosen from indanyl, isochromanyl, chromanyl, 1,2,3,4-tetrahydroisoquinolyl and 1,2,3,4-tetrahydroquinolyl; the heterocyclic radicals contain one or two hetero atoms chosen from oxygen, sulphur and nitrogen and in

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 6.38 (d, J = 12 Hz: IH); 6.60 (d, J= 12 Hz: IH); 7.13 (dd, J = 9 and 1.5 Hz: IH); 7.55 (d, J = 1.5 Hz: IH); 7.94 (d, J = 9Hz: IH); 10.99 (broad s: IH); from 12.60 to 13.40 (broad unresolved peak: IH);.12.92 (unresolved peak: IH).
EXAMPLE 2
ethvl (2E) 4-f(6-chloro-lH-indazol-3-vnaminol-4-oxo-2-butenoate
865 mg of monoethyl fumarate are added to 1 g of 6-chloro-lH-indazole-3-amine in 50 cm' of dichloromethane. 1.4 g of l-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride are then introduced and the mixture is stirred for 30 minutes at about 20°C. The resulting mixture is washed with 50 cm of distilled water and then with 50 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered and then evaporated under reduced pressure (2 kPa; 40°C). 2 g of a brick-coloured gummy mass are obtained, and are purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 pm; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (90/10 by volume) and collecting 40 cm fractions. The fractions containing the expected product are combined and then evaporated under reduced pressure (2 kPa) at a temperature in the region of 40°C. After drying (90 Pa; 45°C), 900 mg of ethyl 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoate, (E form), melting at 220°C, are obtained.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): from 2.50 to 2.75 (mt: 4H) 7.07 (dd, J = 8.5 and 1.5 Hz: IH); 7.52 (d, J = 1.5 Hz: IH); 7.83 (d, J = 8.5 Hz: IH) 11.50 (broad s: IH); 12.19 (broad unresolved peak: IH); 12.75 (unresolved peak IH).

1H NMR. spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 6.38 (d, J = 12 Hz: IH); 6.60 (d, J = 12 Hz: IH); 7.13 (dd, J = 9 and 1.5 Hz: IH); 7.55 (d, J = 1.5 Hz: IH); 7.94 (d, J - 9Hz: IH); 10.99 (broad s: IH); from 12.60 to 13.40 (broad unresolved peak: 1H);.12.92 (unresolved peak: IH).
EXAMPLE 2
ethyl (2E) 4-f(6-chIoro-lH-indazol-3-vl)amiDo1-4-oxo-2-butenoate
865 mg of monoethyl fumarate are added to 1 g of 6-chloro-lH-indazole-3-amine in 50 cm of dichloromethane. 1.4 g of l-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride are then introduced and the mixture is stirred for 30 minutes at about 20°C. The resulting mixture is washed with 50 cm of distilled water and then with 50 cm' of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered and then evaporated under reduced pressure (2 kPa; 40°C). 2 g of a brick-coloured gummy mass are obtained, and are purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 pm; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (90/10 by volume) and collecting 40 cm fractions. The fractions containing the expected product are combined and then evaporated under reduced pressure (2 kPa) at a temperature in the region of 40°C. After drying (90 Pa; 45'C), 900 mg of ethyl 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoate, (E form), melting at 220°C, are obtained.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): from 2.50 to 2.75 (mt: 4H); 7.07 (dd, J = 8.5 and 1.5 Hz: IH); 7.52 (d, J = 1.5 Hz: IH); 7.83 (d, J = 8.5 Hz: IH); 11.50 (broad s: IH); 12.19 (broad unresolved peak: IH); 12.75 (unresolved peak: IH).


Via route (a), the reaction is performed in the presence of a base, for instance pyridine, triethylamine or diisopropylethylamine; the reaction can start at 0°C and, when the addition of the acid chloride is complete, the mixture is left stirring at room temperature (G. Daidone, Heterocycles, 43, (11), 2385-96, (1996)) or is heated, if necessary.
Via route (b), the reaction may be performed at the reflux point of an inert solvent such as xylene or tetrahydrofuran (F. Albericio, Synth. Commun., 31, (2), 225-32, (2001)) or dichloromethane (G. Procter. Tetrahedron, 51, (47), 12837-842, (1995)) or in the anhydride itself
Via route (c), the reaction is performed in the presence of an activating agent of the type such as carbodiimide alone (DCC, EDAC) (M. C. Desai. Tetrahedron Lett., 34, 7685, (1993)) or in the presence of hydroxybenzotriazole and dimethylaminopyridine (J. P. Gamet. Tetrahedron, 40, 1995, (1984), K. Barlos, J. Org. Chem., 50, 696, (1985)) or according to the well-known coupling methods of peptide chemistry (M. Bodanszky, Principles of Peptide Synthesis; Springer-Verlag, New York, NY, pages 9-58, (1984)) or the methods forming amide bonds.

W'Tien, in (I), R3 comprises an acid on the terminal carbon, this acid may be obtained by condensation of a cyclic anhydride such as maleic. succinate or phthalic anhydride, or by condensation of an ester acid chloride followed by saponification of the ester, according to the following scheme:

or the derivatives of formula (I) for which R=S, they are obtained by thionation of he corresponding oxo derivatives using Lawesson's reagent (R. Olsson. Tetrahedron -ett., 41,(41), 7947-50, (2000)) or by treatment with phosphorus pentasulphide in

pyridine or toluene (J. Voss, Justus Liebig Ann. Chem., 716, 209, (1968); 0,Tsuge, Chem. Lett., 1369,(1980)).
The derivatives of formula (I) for which R = NH may be obtained by reaction of the 3-amino IH-indazoles with a nitrile or with a Meerwein salt (S. Patai. The Chemistry of amidines and imidates, J. Wiley and Sons, (1975), page 283).

For the compounds for which R4, R5, R6 and R7 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, NO:, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, cycloalkyl, alkenyl, alkynyl, adamantyl; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NR2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy; they may be obtained by reactions involving palladium chemistry: Suzuki, (A. Suzuki, Pure Appl. Chem. 63, 419-22, (1991), Stille (J.C. Stille, Angew. Chem. Int. Ed. 25, 508-24, (1986), Heck, (R.F. Heck, Org. React., 27, 345-90, (1982), Sonogashira, (K. Sonogashira, Synthesis 777,

(1977), Buckwald (S.L. Buckwald, Ace. Chem. Res., 3i, 805, (1998), starting with the corresponding halo derivatives.
For this, it is necessary to protect the reactive flinctions. Thus, the OH, SH, COOH and NH2 functions must be protected before performing the coupling. The protecting groups are introduced according to any method known to those skilled in the art and especially those described by T.W. Greene, Protective groups in Organic Synthesis, J. Wiley-hiterscience Publication (1991). It is preferable to protect the nitrogen in position 1 with groups such as fert-butoxycarbonyl or silicon derivatives. A tert-butyldimethylsilyl or triisopropylsilyl group will preferably be chosen, and may be removed with fluoride anions or with acetic acid, and more particularly a trimethylsilylethoxymethyl group, which may be cleaved off with tetrabutylammonium fluoride in refluxing solvents such is tetrahydrofuran or dioxane (J. P. Whitten, J. Org. Chem., 51, 1891, (1986); B. H. Lipshutz. Tetrahedron Lett., 4095, (1986)).
The derivatives protected in position 1 with trimethylsilylethoxymethyl are obtained by reacting the starting compounds with trimethylsilylethoxymethyl chloride in the presence of sodium hydride in a solvent such as dimethylformamide at room temperature (J. P. WTiitten, J. Org. Chem., 51, 1891, (1986); M. P. Edwards. Tetrahedron, 42, 3723, (1986)).
Similarly, the 1-NH nitrogen function of the indazole will be protected with groups such as tosyl, carbamate, benzyl or silyl derivatives. For example, when it is desired to perform a palladium coupling on a derivative halogenated in position 6, the nitrogen in position 1 will have to be protected, as shown below (X = CI, Br, I):


The deprotection is performed according to the methods knovvii to those skilled in the art and described by T.W. Greene, Protective groups in Organic Synthesis, J. Wiley-Interscience Publication (1991). For example, if the protecting group in position 1 is a trimethylsilylethoxymethyl, it may be deprotected by reaction with tetrabutylammonium fluoride as shown below:

The benzyl group will then be removed, for example, by treatment with trimethylsilyl iodide in refluxing acetonitrile. The protection may also be performed with a trimethylsilylethoxymethyl group, which may be cleaved off with tetrabutylammonium fluoride in refluxing solvents such as tetrahydrofuran or dioxane


For example, the nitration of the derivatives substituted in position 6 (as described above) may be performed by well-known methods such as nitric acid in acetic acid or nitronium tetrafluoroborate in solvents such as acetonitrile (J. L. Duffy, J. Org. Chem., 56, 3006-09, (1991)). Needless to say, the nitro function may be reduced with hydrogen in the presence of palladium (B. Baragatti, Eur. J. Med, 35,(10), 949-55, (2000)), or with stannous chloride in the presence of hydrochloric acid (R. P. Dixon, Org. Prep. Proced. Int., 32, (6), 573-77, (2000)), or with ferrous sulphate in the presence of aqueous ammonia (S. Castellano, J. Heterocycl. Chem., 32, (6), 1539-42, (2000)). The amine function thus freed may be acylated or may undergo a diazotization leading to Sandmeyer-Gatterman reactions (substitution with CI, Br, I, CN, RS or OH,) (H.H. Hodgson, Chem. Rev., 40, 251-77, (1947); T. Sugaya, Synthesis, 73-76, (1994); the diazonium derivatives (N. Suzuki, J. Chem. Soc. Perkin Tr., 645, (1987)) or the halo derivatives obtained being able to give rise once again, as previously, to reactions involving palladium chemistry.
The compounds of formula (II) of 3-aminoindazole in which:


R4, R5, R6 and R7 are chosen, independently of each other, from the following radicals: hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl, alkenyl, alkynyl, adamantyl, polycycloalkyls; these radicals being optionally substituted with one or more substituents chosen from halogen, CN, NO2, NH2, OH, OR10,.COOH, C(O)OR10, -O-C(O)R10, NRlORll, NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rll are, independently of each other, a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more substituents chosen from halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
the isomers thereof, the mixtures thereof and the racemic mixtures, enantiomers, diastereoisomers and tautomers thereof are useful as intermediates for preparing derivatives of general formula (I).
The compounds of general formula (II) or the pharmaceutically acceptable salts thereof may also be used to prepare a medicinal product and pharmaceutical compositions for the same indications as the compounds of formula (I).
Among the compounds of formula (II) that may be mentioned are the following products:

3-amino-5-bromo-lH-indazole
3-amino-6-bromo-lH-indazole
3 -amino-5 -methyl-1 H-indazole
3-amino-6-(trifluoromethyl)-1 H-indazole
3-amino-5-(trifluoromethyl)-lH-indazole
3-amino-4-chloro-l H-indazole
3-amino-5-nitro-lH-indazole
3 -amino-6-(3-pyridyl)-1 H-indazole
3 -amino-4-iodo-1 H-indazole
3 -amino-6-phenyl-1 H-indazole
3-amino-6-bromo-5,7-dinitro-lH-indazole
3-amino-6-bromo-7-nitro-lH-indazole
3-amino-6-
3-amino-6-
3-amino-6-i
3-amino-6-i
3-amino-6
3-amino-5
3-amino-6
3-amino-6-bromo-5-nitro-lH-indazole
furan-3 -yl)-1 H-indazole 4-(phenylmethoxy)phenyl]-l H-indazole 4-hydroxyphenyl)-1 H-indazole 3,5-difluorophenyl)-1 H-indazole 3-thienyl)-1 H-indazole
[(3-fluorophenyl)sulphonyl]amino]-lH-indazole 2-phenylethyl)-1 H-indazole

3-amino-6,7-difluoro-lH-indazole 3-aniino-6-(4-methoxyphenyl)-1 H-indazoIe 3-amino-6-(4-methylthiophenyl)-lH-indazole 3-ainino-6-(4-trifluoromethoxyphenyl)-1 H-indazole 3-amino-(6-(l-propenyl)-lH-indazole 3-amino-6-(4-fluorophenyl)-1 H-indazole 3-amino-6-[4-(l,l-dimethylethyl)phenyl]-lH-indazole 3-amino-6-bromo-7-amino-lH-mdazole 3-amino-6-(4-methylphenyl)-1 H-indazole 3-amino-6-(3,5-dichlorophenyl)-lH-indazole 3-amino-6-(4-chlorophenyl)-1 H-indazole 3-amino-6-(4-ethylphenyl)-l H-indazole 3-amino-6-(4-pyridyl)-1 H-indazole 3-amino-5-amino-l H-indazole 3-amino-5-bromo-6-chloro-l H-indazole 3-amino-5-phenyl-6-chloro-l H-indazole 3-amino-5-bromo-6-[4-(phenylmethoxy)phenyl]-lH-indazole 3-amino-5-bromo-6-(4-hydroxyphenyl)-l H-indazole 3-amino-6-(4-nitrophenyl)-1 H-indazole 3-amino-6-(2-chlorophenyl)-l H-indazole



3-amino-6-[3-(phenylmethoxy)pheTiyl]-lH-indazole
3-amino-6-(3-hydroxyphenyl)-lH-indazole
3-amino-6-chloro-5-(4-pyridyl)-lH-indazole
3-ainino-6-chloro-5-(3-furyl)-lH-indazole
3-amino-6-[2-chloro-4-(phenylmethoxy)-phenyl]-lH-indazole
3-amino-6-(2-chloro-4-hydroxyphenyl)-lH-indazole
3 -ammo-5,6-dibromo-1 H-indazole
3 -amino-6-chloro-5 -(4-fluorophenyl)-1 H-indazole
3-amino-6-(4-aminophenyl)-l H-indazole
3-amino-6-[4-(dimethylamino)phenyl]-l H-indazole
3-amino-6-chloro-1 H-indazole
3-amino-5,6-diphenyl-l H-indazole
3-amino-6-chloro-5-(4-methylphenyl)-l H-indazole
3-amino-5-phenyl-6-[4-(phenylmethoxy)phenyl]-l H-indazole
3-amino-5-phenyl-6-(4-hydroxyphenyl)-l H-indazole
3-amino-5-(4-aminophenyl)-6-chloro-l H-indazole
3-amino-6-chloro-5-(4-ethylphenyl)-l H-indazole
3-amino-6-chloro-5-[4-(phenylmethoxy)phenyl]-l H-indazole
3-amino-6-chloro-5-(4-hydroxyphenyl)-l H-indazole
3-amino-5,6-bis[4-(phenylmethoxy)phenyI]-lH-indazole

3-amino-5,6-bis(4-hydroxyphenyl)-lH-indazole
3-amino-5-(3-furyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazole
3-amino-5-(3-fiiryl)-6-([4-hydroxyphenyl)-lH-indazole
3-ainino-5-(4-ethylphenyl)-6-[4-(phenylmethoxy)phenyl]-lH-mdazole
3-amino-5-(4-ethylphenyl)-6-(4-hydroxyphenyl)-lH-indazole
3-ainino-5-(3-pyridyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazole
3-ainino-5-(3-pyridyl)-6-(4-hydroxyphenyl)-lH-indazole
3-amino-5-(2-fViryl)-6-[4-(phenylmethoxy)phenyl]-lH-indazole
3-amino-5-(2-fliryl)-6-(4-hydroxyphenyl)-lH-indazole
3-amino-5-bromo-6-chloro-7-mtro-lH-indazole
3-amino-5-bromo-6,7-difluoro-lH-indazole
3-amino-6-(4-cyanophenyl)-1 H-indazole
3-amino-6,7-difluoro-5-nitro-lH-indazole
3-amino-6,7-difluoro-5-phenyl-l H-indazole
3-amino-6-(6-hydroxypyrid-3-yl)-lH-indazole
3-amino-6-(3,4-dihydroxyphenyI)-l H-indazole
3-amino-7-fluoro-5-nitro-6-[2-(phenylethyl)amino]-lH-indazole
3-amino-7-fluoro-5-nitro-6-morpholino-lH-indazole
3-amino-7-fluoro-5-amino-6-morpholino-l H-indazole
3-amino-5-bromo-7-fluoro-6-morpholino-l H-indazole

3-aniino-7-fluoro-6-(trifluoromethyl)-lH-indazole
3-amino-6-bromo-4,5,7-trifluoro-1 H-indazole
3-ainino-6-(6-aminopyrid-3-yl)-1 H-indazoIe
The compounds of formula (I) are isolated and may be purified by the usual known methods, for example by crystallization, chromatography or extraction.
The compoimds of formula (I) may optionally be converted into addition salts with a mineral or organic acid by the action of such an acid in an organic solvent such as an alcohol, a ketone, an ether or a chlorinated solvent. These salts also form part of the invention.
Examples of pharmaceutically acceptable salts that may be mentioned include the following salts: benzenesulphonate, hydrobromide, hydrochloride, citrate, ethanesulphonate, fumarate, gluconate, iodate, maleate, isethionate, methanesulphonate, methylene-bis-P-oxynaphthoate, nitrate, oxalate, pamoate, phosphate, salicylate, succinate, sulphate, tartrate, theophyllinacetate and p-toluenesulphonate.
The compounds of formula (I) are kinase inhibitors and are thus useful for preventing and treating neurodegenerative diseases, Alzheimer's disease, Parkinson's disease, frontoparietal dementia, corticobasal degeneration. Pick's disease, strokes, cranial and spinal trauma and peripheral neuropathies, obesity, essential hypertension, itherosclerotic cardiovascular diseases, polycystic ovarian s>Tidrome, syndrome X, mmunodeficiency and cancer.
rheir activities were determined by measuring the inhibition of the phosphorylation )f the tau protein in sections of adult rat cortex.
The cortex sections are 300 pm thick and are prepared using 8-10-week-old male )FA rats (Iffa-Credo), sacrificed by decapitation. They are incubated in 5 ml of )MEM medium containing pyruvate and glucose 4.5 g/1 at 37°C for 40 minutes. The

sections are then washed twice with the medium, distributed into microUibes (50/il in SOOfil of medium with or without test compounds) and incubated at 37°C with stirring. Two hours later, the experiment is stopped by centrifugation. The sections are lysed, sonicated and centrifuged at 18 300xg for 15 minutes at 4°C. The protein concentration of the supernatant is determined by means of a commercial assay (BCA Protein Assay, Pierce) based on the Lowry method.
The samples, denatured beforehand for ten minutes at 70°C, are separated on 4-12% Bis-Tris vertical gel in the presence of MOPS-SDS buffer and electrotransferred on nitrocellulose membrane. The immunolabelling is performed with the AD2 monoclonal antibody, which specifically recognizes the Ser396/404 phosphorylated epitopes of the tau protein. The immunoreactive proteins are visualized by adding a second antibody directed against mouse IgGs and coupled to peroxidase and to a chemoluminescent substrate. The autoradiograms obtained are finally quantified using the 'GeneTools' software from Syngene (GeneGnome, Ozyme) to determine an IC50.
The compounds of formula (I) show very advantageous activity, and in particular certain compounds have an IC50 of less than 100 pM.
The examples that follow illustrate the invention in a non-limiting manner.
EXAMPLE 1
(2Z) 4-[(6-chioro-lH-indazol-3-vl)amino]-4-oxo-2-butenoic acid
585 mg of preground maleic anhydride are added to 1 g of 6-chloro-lH-indazole-3-amine in 30 cm of ortho-xylene. The reaction medium is refluxed at 145°C for ten minutes and then cooled in a water bath. The insoluble material is filtered off and washed successively with 2x25 cm of ethyl acetate and then with 2x25 cm of diisopropyl ether. The solid is then dried under reduced pressure (90 Pa: 50°C) to give 1 g of 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid (Z form) in the form of yellow crystals melting at 230°C.

EXAMPLE 3
4-f(6-chloro-lH-iDdazol-3-vt)aniino]-4-oxo-2-butanoic acid
300 mg of succinic anhydride are added to 500 mg of 6-chloro-lH-indazole-3-amine in 30 cm of ortho-xylene. The reaction medium is refluxed at about 145°C for 16 hours and the heating is then stopped and the mixture is allowed to cool to room temperature of about 20°C. The reaction medium is then filtered through a sinter furmel; the solid is taken up in 20 cm of ethyl acetate and 30 cm of 10% sodium hydrogen carbonate solution. The organic phase is dried over magnesium sulphate, filtered and then evaporated according to the conditions already described. The white crystals thus obtained are stirred with 30 cm of 10% sodium hydrogen carbonate solution for 20 minutes. A light insoluble material is removed by filtration and the filtrate is acidified with 12N hydrochloric acid; the precipitate formed is washed with 2x10 cm of distilled water, with 1x5 cm of acetone and with 2x10 cm of diisopropyl ether. The solid is then dried under reduced pressure at about 40°C and then purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 pm; . diameter 2 cm), eluting with a dichloromethane/methanol mixture (99/1 by volume) and collecting 20 cm fi-actions. The fi-actions containing the expected product are combined and then evaporated according to the conditions described previously. The product obtained is taken up in 10 cm' of ethyl acetate, filtered off on a sinter fiinnel and rinsed with 2x5 cm of ethyl acetate and then with 20 cm of diethyl ether. The product is dried under reduced pressure overnight (90 Pa; 40°C) to give 110 mg of 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butanoic acid in the form of a white solid melting at 200°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): from 2.50 to 2.75 (mt: 4H) 7.07 (dd, J = 8.5 and 1.5 Hz: IH); 7.52 (d, J = 1.5 Hz: IH); 7.83 (d, J = 8.5 Hz: IH) 11.50 (broad s: IH); 12.19 (broad unresolved peak: IH); 12.75 (unresolved peak IH).

EXAMPLE 4
(2Z) 4-f(5-bromo-lH-iDdazol-3-\i)aminol-4-oxo-2-buteDoic acid
350 mg of maleic anhydride are added to 500 mg of 5-bromo-lH-mdazole-3-amine, prepared as described in patent US 3 133 081, in 20 cm of toluene. The medium is refluxed at about 110°C for one hour. The heating is then stopped and the mixture is stirred at about 19°C for 12 hours. The precipitate formed is filtered off on a sinter
T -5 -1
fuimel and rinsed with 20 cm of diisopropyl ether, 2 cm of ethyl acetate and 2 cm of dichloromethane. After drying (90 Pa; 45°C), 448 mg of 4-[(5-bromo-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid, Z form, are obtained in the form of a yellow soUd melting at 172°C.
1H NMR spectrum (400 MHz, (CD3)2SO-d6, 5 in ppm): 6.38 (d, J = 12 Hz: IH); 6.62 (d, J = 12 Hz: IH); 7.49 (mt: 2H); 8.15 (broad s: IH); 10.95 (broad s: IH); from 12.70 to 13.30 (broad unresolved peak: IH); 12.98 (unresolved peak: IH).
EXAMPLE 5
(2E) 4-f(6-chloro-lH-indazoi-3-vl)amino1-4-oxo-2-butenoic acid
0.95 cm of IN sodium hydroxide is added to 280 mg of ethyl (2E) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoate, described in Example 2, in 25 cm of ethanol. The reaction medium is then heated at 50°C for two hours, followed by addition of a further 1 equivalent of IN sodium hydroxide. The temperature is maintained at 50°C for a further 30 minutes and the heating is then stopped. At about 20°C, the medium is neutralized with IN hydrochloric acid and then concentrated under reduced pressure (2 kPa; 40°C). The solid thus obtained is taken up in 25 cm of tetrahydrofuran, 50 cm of ethyl acetate and 25 cm of distilled water. The organic phase is washed with 30 cm of saturated aqueous sodium chloride solution and then dried over magnesium sulphate. The solution is filtered and evaporated under the conditions described previously. The residue is taken up in 10 cm of ethyl acetate and the insoluble material is then filtered off and rinsed with 5 cm' of ethyl acetate

and with lOcm of diethyl ether and dried under reduced pressure (90 Pa; 50°C). 155 mg of 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid (E form) are obtained in the form of a pale yellow solid melting at 260°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 6.75 (d, J - 15.5 Hz: IH); 7.11 (dd, J = 9 and 2 Hz: IH); 7.27 (d, J = 15.5 Hz: IH); 7.55 (d, J - 2 Hz: IH); 7.96 (d, J = 9 Hz: IH); 11.13 (broad s: IH); firom 12.40 to 13.10 (broad unresolved peak: IH); 12.94 (unresolved peak: IH).
EXAMPLE 6
4-K5-bromo-l H-indazol-3-vI)amino1-4-oxo-2-butanoic acid
354 mg of succinic anhydride are added to 500 mg of 5-bromo-lH-indazole-3-amine, prepared as described in patent US 3 133 081, in 20 cm of toluene. The reaction medium is refluxed at about 110°C for 13 hours. The precipitate is filtered off and then rinsed with 10 cm of diisopropyl ether and 10 cm of dichloromethane. The product is taken up in 20 cm of saturated aqueous sodium hydrogen carbonate solution and acidified with 5N hydrochloric acid to pH 9/10. The precipitate formed is filtered off and rinsed with 20 cm of distilled water, and the solid is then taken up in 20 cm of acetone. The solution is then evaporated to dryness under reduced pressure (2 kPa; 40°C) to give, after drying (90 Pa; 45°C), 270 mg of 4-[(5-bromo-lH-indazol-3-yl)amino]-4-oxo-2-butanoic acid in the form of a white solid melting at about 173°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): from 2.50 to 2.75 (mt: 4H); 7.45 (broad s: 2H); 8.02 (broad s: IH); 10.55 (unresolved peak: IH); 12.83 (uiu-esolved peak: IH).
EXAMPLE 7
(2E) N-(6-chloro-l H-indazol-3-vl)-2-butenamide

0.67 cm of distilled crotonyl chloride is added to 50 mg of 6-chloro-lH-indazole-3-amine dissolved in 5 cm' of pyridine and cooled to about 6°C. The mixture is stirred for 10 minutes and the temperature is then allowed to rise to about 19°C over 22 hours. The reaction medium is then concentrated to dryness under reduced pressure (2 kPa; 40°C) and the residue is then taken up in 50 cm of tetrahydrofuran and 25 cm of ethyl acetate. The organic phase is washed with 2x50 cm of distilled water and then with 50 cm' of satxirated aqueous sodium chloride solution. The resulting solution is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under the conditions described previously. The residue obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 jJm; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume) and collectmg 20 cm fractions. The fractions containing the expected product are combined and then evaporated under the conditions already described. After drying (90 Pa; 45°C), 100 mg of N-(6-chloro-lH-indazol-3-yl)-2-butenamide, E form, are obtained in the form of a white solid melting at 226°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.90 (broad d, J = 7 Hz: 3H); 6.27 (dd, J = 15 and 1.5 Hz: IH); 6.88 (dq, J = 15 and 7 Hz: IH); 7.08 (dd, J = 9 and 2 Hz: IH); 7.52 (d, J = 2 Hz: IH); 7.92 (d, J = 9 Hz: IH); 10.53 (unresolved peak: IH); 12.80 (unresolved peak: IH).
EXAMPLE 8
6-chloro-l-f(Ll-dimethvlethoxv)carbonvl]-lH-indazole-3-amine
1.3 g of di-tert-butyl dicarbonate and lOmg of dimethylaminopyridine are added to 1 g of 6-chloro-lH-indazole-3-amine in 30 cm' of dichloromethane. The mixture is stirred for 17 hours at about 19°C. The reaction medium is evaporated to dryness according to the conditions already described, and the residue is then purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 [Jm; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture

(90/10 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa, 50°C). After drying (90 Pa; 45°C), 1.2 g of 6-chloro-l-[(l,l-dimethylethoxy)carbonyl]-lH-indazole-3-amine are obtained in the form of a white solid.
1H NMR spectrum (400 MHz, (CD3)2SO-d6, 5 in ppm): 1.61 (s: 9H); 6.43 (broad s: 2H); 7.36 (dd, J = 9 and 1.5 Hz: IH); 7.89 (d, J = 9 Hz: IH); 7.97 (broad s: IH).
N-(6-chloro-l-f(l,l-dimethvlethoxv)carbonvI1-lH-indazol-3-vn-3-butenamide
0.45 cm of predistilled crotonyl chloride is added to 1 g of 6-chloro-l-[(l,l-
dimethylethoxy)carbonyl]-lH-indazole-3-amine described previously, in 40 cm of
dichloromethane and 1.05 cm of triethylamine. The mixture is stirred at about 19°C
for 16 hours. The medium is then concentrated under reduced pressure (20kPa;
40°C). The residue is taken up in 100 cm of ethyl acetate and 50 cm of distilled
water. The organic phase is then washed with 50 cm' of saturated aqueous sodium
chloride solution. The resulting solution is dried over magnesium sulphate, filtered
through a sinter funnel and then evaporated under the conditions already described
previously. The residue is purified by chromatography under an argon pressure of
50kPa, on silica gel (particle size 40-60 pm; diameter 3 cm), eluting with a
cyclohexane/ethyl acetate mixture (90/10 by volume) and collecting 15 cm fractions.
The fractions containing the expected product are combined and then evaporated
under reduced pressure (2 kPa; 40°C). After drying (90 Pa; 45°C), 120 mg of N-(6-
chloro-1 -[(1 > 1 -dimethylethoxy)carbonyl]-1 H-indazol-3-yl)-3-butenamide are
obtained in the form of a yellow solid.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.66 (s: 9H); 3.28 (broad d, J = 7.5 Hz: 2H); 5.20 (dd, J = 10.5 and 1.5 Hz: IH); 5.26 (dd, J = 17 and 1.5 Hz: IH); 6.02 (mt: IH); 7.43 (dd, J = 9 and 2 Hz: IH); 8.05 (d, J = 9Hz: IH); 8.12 (d, J = 2 Hz: IH); 11.09 (unresolved peak: IH).
N-(6-chloro-lH-indazol-3-vI)-3-buteDamide hydrochloride

10 cm of 4N hydrochloric dioxane are added to 240 mg of N-(6-chloro-l-[(l,l-dimethylethoxy)carbonyl]-lH-indazol-3-yl)-3-butenaniide described previously. The mixture is stirred at about 19°C for 17 hours. The crystalline product is filtered off on a sinter funnel, rinsed with 2x5 cm of ethyl acetate and with 2x5 cm' of diethyl ether and then dried under reduced pressure (90 Pa; 40°C). 125 mg of N-(6-chloro-lH-indazol-3-yl)-3-butenamide, in the form of the hydrochloride and melting at 150°C, are thus obtained.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 3.22 (d, J = 7 Hz: 2H); 5.17 (broad d, J = 10.5 Hz: IH); 5.23 (broad d, J = 18 Hz: IH); from 5.30 to 6.80 (broad unresolved peak: 2H); 6.02 (mt: IH); 7.07 (dd, J = 9 and 2 Hz: IH); 7.52 (d, J = 2 Hz: IH); 7.82 (d, J = 9 Hz: IH); 10.50 (broad s: IH).
EXAMPLE 9
methvl4-f(6-chloro-lH-iDdazol-3-vl)amino]-4-oxo-2-butaDoate
4 g of 6-chloro-lH-indazole-3-amine in 40 cm of pyridine at 5°C are added to 3.5 g of methyl 4-chloro-4-oxobutanoate in 10 cm of dichloromethane. The mixture is allowed to return to 19°C over 19 hours. The reaction medium is evaporated under the conditions described previously. The residue is taken up in 75 cm of tetrahydrofliran and 75 cm of ethyl acetate. The mixture is washed with 3x50 cm' of distilled water. The resulting solution is dried over magnesium sulphate, filtered through a sinter funnel and evaporated under reduced pressure (2 kPa; 40°C). The product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 pm; diameter 6 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume) and collecting 50 cm' fractions. The fractions containing the expected product are combined and then e\'aporated under reduced pressure (2 kPa; 40°C). After drying (90 Pa; 45°C), 3 g of methyl 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butanoate are obtained in the form of a white sohd melting at 170°C.

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): from 2.60 to 2.80 (mt: 4H); 3.63 (s: 3H); 7.08 (dd, J = 9 and 2 Hz: IH); 7.52 (d, J = 2 Hz: IH); 7.82 (d, J = 9 Hz: IH); 10.52 (unresolved peak: IH); 12.77 (broad unresolved peak: IH).
EXAMPLE 10
N-f6-chloro-lH-indazol-3-vl)acetainide
0.32cm of predistilled acetyl chloride is added to 750 mg of 6-chloro-lH-indazole-3-amine in 10 cm of pyridine, after the reaction medium has been cooled to about 3°C. The medium is then allowed to return to 19°C over 48 hours. The reaction medium is evaporated to dryness under reduced pressure (2 kPa; 40°C). The residue is taken up in 75 cm of ethyl acetate and 50 cm of distilled water. The organic phase is washed again with 50 cm of distilled water and then dried over magnesium sulphate, filtered through a sinter fiinnel and evaporated under reduced pressure. The residue obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 nm; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume) and collecting 35 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 40°C). After drying (90 Pa; 45°C), 700 mg of Ne-chloro-lH-indazol-S-yO-acetamide, melting at 240°C, are obtained.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 2.13 (s: 3H); 7.08 (dd, J = 9 and 2 Hz: IH); 7.52 (d, J = 2 Hz: IH); 7.86 (d, J = 9 Hz: IH); 10.45 (unresolved peak: IH); from 12.50 to 13.10 (broad unresolved peak: IH).
EXAMPLE 11
N-(6-chloro-lH-indazol-3-vl)butanamide
0.47 cm of butyryl chloride is added to 750 mg of 6-chloro-lH-indazole-3-amine in 10 cm of pyridine, after the reaction medium has been cooled to about 3°C. The medium is then allowed to return to 19°C over 14 hours. The reaction medium is evaporated to dryness under reduced pressure (2 kPa; 40°C). The residue is taken up

in 50 cm of ethyl acetate, 50 cm of tetrahydrofuran and 50 cm of distilled water. The organic phase is washed again with 50 cm of distilled water and with 50 cm of saturated aqueous sodium chloride solution, and then dried over magnesium sulphate, filtered through a sinter funnel and evaporated under reduced pressure. The residue obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 fim; diameter 2.5 cm), eluting with cyclohexane/ethyl acetate (70/30 by volume) and collecting 25 cm fractions. The fractions containing the expected product are combined and then evaporated under reduced pressure (2 kPa; 40°C). After drying (90 Pa; 45°C), 200 mg of N-(6-chloro-lH-indazol-3-yl)-butanamide are obtained in the form of a white solid melting at 230°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7 Hz: 3H); 1.67 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 7.08 (dd, J = 9 and 2 Hz: IH); 7.52 (d, J = 2 Hz: IH); 7.84 (d, J = 9Hz: IH); 10.39 (unresolved peak: IH); from 12.50 to 13.00 (broad unresolved peak: IH).
EXAMPLE 12
6-bromo-lH-indazole-3-amine
7.3 cm of hydrazine monohydrate are added to 10 g of 4-bromo-2-fluorobenzonitrile in 100 cm of ethanol. The medium is refluxed at about 78°C for 12 hours. The precipitate formed is then filtered off on a sinter funnel. After drying (90 Pa; 45°C), 9.7 g of 6-bromo-lH-indazole-3-amine are obtained in the form of a white solid.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 5.45 (broad s: 2H); 7.03 (dd, J = 9 and 2 Hz: IH); 7.43 (d, J = 2 Hz: IH); 7.65 (d, J = 9 Hz: IH); 11.50 (unresolved peak: IH).
(2E) N-(6-bromo-lH-indazol-3-vn-2-butenamide
1.07 cm' of crotonyl chloride are added to 2 g of 6-bromo-lH-indazole-3-amine, prepared previously, in 30 cm of pyridine, cooled to about 3°C. The medium is

allowed to return to about 19°C over 12 hours. The reaction medium is evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 20 cm of ethyl acetate and 20 cm' of distilled water. The aqueous phase is re-extracted with 20 cm of ethyl acetate. The aqueous phases are combined and then evaporated under the conditions described previously. The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volimie) and collecting 15 cm fi-actions. The fiactions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 130 mg of N-(6-bromo-lH-indazol-3-yl)-2-butenamide (E form) are obtained in the form of a beige-coloured solid melting at 232°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.91 (dd, J = 7 and 1.5 Hz: 3H); 6.27 (dd, J = 15 and 1.5 Hz: IH); 6.89 (dq, J = 15 and 7 Hz: IH); 7.20 (dd, J = 9 and 2 Hz: IH); 7.68 (d, J = 2 Hz: IH); 7.87 (d, J = 9 Hz: IH); 10.54 (unresolved peak: IH); 12.80 (broad unresolved peak: IH).
EXAMPLE 13
(2E)N-(5-methvl-lH-indazol-3-vl)-2-butenamide
0.33 cm of crotonyl chloride is added to 560 mg of 5-methyl-lH-indazole-3-amine, prepared as described in patent EP 909 720, in 30 cm of pyridine. The medium is allowed to retum to about 19°C over 12 hours. The reaction medium is evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 25 cm of tetrahydrofuran, 25 cm' of ethyl acetate and 25 cm of distilled water. The organic phase is washed with 2x25 cm' of distilled water. The resulting solution is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume) and collecting 20 cm" firactions. The fi-actions containing the expected product are

combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 50 mg of N-(5-methyl-lH-indazol-3-yl)-2-butenamide (E form) are obtained in the form of a white sohd meUing at about 218°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 8 in ppm): 1.90 (broad d, J = 7 Hz: 3H); 2.38 (s: 3H); 6.25 (dd, J = 15 and 1.5 Hz: IH); 6.86 (dq, J = 15 and 7 Hz: IH); 7.17 (dd, J = 9 and 2 Hz: IH); 7.34 (d, J = 9Hz: IH); 7.56 (broad s: IH); 10.31 (unresolved peak: IH); 12.52 (unresolved peak: IH).
EXAMPLE 14
N-(6-chloro-lH-indazol-3-vIV2-propanamide
0.39 cm of propionyl chloride is added to 750 mg of 6-chloro-lH-indazole-3-amine in 10 cm of pyridine, cooled to about 3°C. The reaction medium is allowed to return to about 19°C over 12 hours and is evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 40 cm' of tetrahydrofuran, 40 cm of ethyl acetate and 40 cm of distilled water. The organic phase is washed with 40 cm of distilled water and 40 cm' of saturated aqueous sodium chloride solution. The resulting solution is dried over magnesium sulphate, filtered through a sinter fiinnel and then evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume) and collecting 35 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The product obtained is taken up in 50 cm' of diethyl ether, filtered off on a sinter funnel and then washed with 2x10 cm' of diethyl ether. The product is filtered off by suction and, after drying (90 Pa; 45°C), 440 mg of N-(6-chloro-lH-indazol-3-yl)-2-propanamide are obtained in the form of a white soUd melting at 210°C.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 5.66 (s: 2H); 7.42 (d, J = 9 Hz: IH); 7.50 (broad d, J = 9 Hz: IH); 8.22 (broad s: IH); 10.86 (unresolved peak: IH).

EXAMPLE 15
f2E)N-f6-(trifluoromethvn-lH-indazoI-3-vl]-2-butenamide
0.23 cm of crotonyl chloride is added to 500 mg of 6-trifluoro methyl-IH-indazole-3-amine, prepared as described in patent US 3 133 081, in 10 cm of pyridine, cooled to about 10°C. The temperatxire is allowed to return to about 19°C over 17 hours. The reaction medium is evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 25 cm of tetrahydrofiiran, 25 cm of ethyl acetate and 25 cm of distilled water. The organic phase is washed with 25 cm of distilled water. The combined organic phases are dried over magnesium sulphate, filtered through a sinter fliimel and then evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 2 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume) and collecting 30 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 30 cm of diisopropyl ether and then fiUered off on a sinter funnel. After drying (90 Pa; 45°C), 41 mg of N-[6-(trifluoromethyl)-lH-indazol-3-yl]-2-butenamide (E form) are obtained in the form of a white solid melting at 208°C.
IR NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.91 (dd, J = 7 and 1.5 Hz: 3H); 6.29 (dd, J = 15 and 1.5 Hz: IH); 6.91 (dq, J = 15 and 7 Hz: IH); 7.35 (broad d, J = 9Hz: IH); 7.83 (broad s: IH); 8.11 (d, J = 9 Hz: IH); 10.65 (unresolved peak: IH); from 12.60 to 13.50 (broad unresolved peak: IH).
EXAMPLE 16
ethyl 4-[[6-(trifluoromethvl)-lH-indazol-3-vl]amino]-4-oxobutanoate
0.23 cm of crotonyl chloride is added to 249 mg of 6-(trifluoromethyl)-lH-indazole-3-amine, prepared as described in patent US 3 133 081, in 10 cm' of pyridine, cooled to about 10°C. The temperature is allowed to return to about 19°C over 17 hours. The

reaction medium is evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 25 cm of tetrahydrofuran, 25 cm of ethyl acetate and 25 cm of distilled water. The organic phase is washed with 2x25 cm of distilled water. The combined organic phases are dried over magnesium sulphate and filtered through a sinter furmel, and then evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 nm; diameter 2 cm), eluting with a dichloromethane/methanol mixture (98/2 by volume) and collecting 30 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 210 mg of ethyl 4-[[6-(trifluoromethyl)-lH-indazol-3-yl]amino]-4-oxobutanoate are obtained in the form of a white solid melting at 248°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.21 (t, J = 7 Hz: 3H); from 2.60 to 2.80 (mt: 4H); 4.10 (q, J = 7 Hz: 2H); 7.35 (broad d, J = 9 Hz: IH); 7.84 [broad s: IH); 8.02 (d, J = 9 Hz: IH); 10.61 (unresolved peak: IH); from 12.60 to 13.60 (broad unresolved peak: IH).
EXAMPLE 17
f2E)N-[5-(trifluoromethvl)-lH-indazol-3-vl]-2-butenamide
3.24 cm of crotonyl chloride is added to 500 mg of 5-(trifluoromethyl)-lH-indazole-3-amine, prepared according to patent US 3 133 081, in 15 cm' of pyridine. The ■eaction medium is stirred at about 19°C for 12 hours and then evaporated under ■educed pressure (2 kPa; 50°C). The residue is taken up in 25 cm' of tetrahydrofuran, Z5 cm' of ethyl acetate and 25 cm' of distilled water. The organic phase is washed igain with 25 cm" of distilled water. The organic phase is dried over magnesium julphate, filtered through a sinter funnel and then evaporated under reduced pressure '2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of jOkPa, on a colunm of sihca gel (particle size 40-60 /xm; diameter 2.5 cm), eluting mth a cyclohexane/ethyl acetate mixture (40/60 by volume) and collecting 25 cm

fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2kPa; 50°C). After drying (90 Pa; 45°C), 63 mg of N-[5-(trifluoromethyl)-lH-indazol-3-yl]-2-butenamide (E form) are obtained in the form of an off-white sohd mehing at about 242°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.91 (dd, J = 7 and 1.5 Hz: 3H); 6.30 (dd, J = 15 and 1.5 Hz: IH); 6.93 (dq, J = 15 and 7 Hz: IH); 7.60 (dd, J = 9 and 2 Hz: IH); 7.66 (d, J = 9 Hz: IH); 8.42 (broad s: IH); 10.73 (unresolved peak: IH); from 12.90 to 13.40 (broad unresolved peak: IH).
EXAMPLE 18
N-f5-chloro-lH-indazol-3-vI1-2-butanamide
0.31 cm' of butyryl chloride is added to 500 mg of 5-chIoro-lH-indazole-3-amine, prepared according to patent EP 90972, in 25 cm of pyridine, cooled to about 5°C. The temperature is allowed to return to about 19°C over 17 hours and the reaction medium is evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 25 cm of tetrahydrofuran, 25 cm of ethyl acetate and 25 cm of distilled water. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /m; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume) and collecting 30 cm' fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 100 mg of N-[5-chloro-lH-indazol-3-yl]-2-butanamide are obtained in the form of a white sohd melting at 216°C.
1H NMR spectrum (300 MHz, (CD3)2SO d6, 5 in ppm): 0.97 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7.5 Hz: 2H); 7.35 (dd, J = 9 and 2 Hz: IH); 7.49 (dd, J = 9 and 0.5 Hz: IH); 7.86 (dd, J = 2 and 0.5 Hz: IH); 10.41 (unresolved peak: IH); 12.82 (unresolved peak: IH).

EXAMPLE 19
N-f4-chloro-lH-indazol-3-vl1butanamide
0.23 cm of butyryl chloride is added to 1 g of 4-chloro-lH-indazole-3-amine, prepared as described in patent EP 90 972, in lOcm of pyridine, cooled to about 10°C. The temperature is allowed to return to about 19°C over 17 hours. The reaction medium is evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 25 cm' of ethyl acetate and 25 cm of distilled water. The organic phase is washed with 2x25 cm of distilled water and with 25 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 nm; diameter 4 cm), eluting with a dichloromethane/methanol mixture (99/1 by volume) and collecting 30 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). 80 mg of N-[4-chloro-lH-indazol-3-yl]butanamide are thus obtained in the form of a white sohd melting at 198°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (broad t, J = 7 Hz: 3H); 1.66 (mt: 2H); 2.35 (very broad t, J = 7 Hz: 2H); 7.15 (broad d, J = 8 Hz: IH); 7.34 (t, J = 8 Hz: IH); 7.49 (d, J = 8 Hz: IH); 9.80 (unresolved peak: IH).
EXAMPLE 20
N-f6-(trifluoromethvl)-lH-indazol-3-vl]butanamide
0.26 cm of butyryl chloride is added to 500 mg of 6-(trifluoromethyl)-lH-indazole-3-amine, prepared as described in patent US 3 133 081, in 5 cm" of pyridine, cooled to about 10°C. The temperature is allowed to return to about 19°C over 19 hours. The reaction medium is evaporated under reduced pressure (2 kPa; 50°C). The residue is
■J n . .
taken up in 15 cm of ethyl acetate and 15 cm of distilled water. The organic phase is washed with 15 cm' of distilled water and with 15 cm of saturated aqueous sodium

chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 ptm; diameter 2 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume) and collecting 20 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 49 mg of N-[6-(trifluoromethyl)-lH-indazol-3-yl]butanamide are thus obtained in the form of a white solid melting at 200°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7,5 Hz: 3H); 1.69 (mt: 2H); 2.42 (t, J = 7.5 Hz: 2H); 7.34 (broad d, J = 9 Hz: IH); 7.82 (broad s: IH); 8.04 (d, J = 9 Hz: IH); 10.49 (unresolved peak: IH); 13.10 (broad unresolved peak: IH).
EXAMPLE 21
6-chloro-l-[[2-(trimethvlsilvnethoxv]methvl]-lH-indazole-3-amine
A solution of 2 g of 6-chloro-lH-indazole-3-amine in 20 cm of dimethylformamide is added to 478 mg of sodium hydride in 50 cm of anhydrous dimethylformamide. The resulting solution is then cooled to about 3°C and 2.12 cm' of [2-(trimethylsilyl)ethoxy]methyl chloride in 10 cm of dimethylformamide are added. The resulting mixture is allowed to return to about 19°C over 45 minutes and is then taken up in 250 cm of ethyl acetate. This mixture is washed with 3100 cm of distilled water and 100 cm' of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 40°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of siUca gel (particle size 40-60 /m; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture (90/10 by volume) and collecting 100 cm' fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C).

2 g of 6-chloro-l-[[(2-trimethylsilyl)ethoxy]methyl]-lH-indazole-3-amine are obtained in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.09 (s: 9H); 0.80 (t, J = 8 Hz: 2H); 3.48 (t, J = 8 Hz: 2H); 5.43 (s: 2H); 5.68 (broad s: 2H); 7.01 (dd, J = 9 and 2 Hz: IH); 7.61 (d, J = 2 Hz: IH); 7.74 (d, J = 9 Hz: IH).
N-f6-chloro-l-K2-trimethvlsilvlethoxv)inethvn-lH-iDdazol-3-vl1propenamide
0.33 cm of acryloyl chloride is added to 1 g of 6-chloro-l-[[(2-trimethylsilyl)ethoxy]methyl]-lH-indazole-3-amine, described previously, in 25 cm of dichloromethane and 0.57 cm of triethylamine. The reaction medium is stirred for 30 minutes and then evaporated under reduced pressure (2 kPa; 40°C). The residue is taken up in 100 cm of ethyl acetate and this mixture is washed with 2x50 cm' of distilled water and with 50 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, fiUered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 40°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 jiva; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (90/10 by volume) and collecting 35 cm' fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), , 160 mg of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]propenamide are thus obtained in the form of a white soHd.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.08 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 3.54 (t, J = 8 Hz: 2H); 5.68 (s: 2H); 5.84 (dd, J = 10.5 and 2 Hz: IH); 6.35 (dd, J = 16.5 and 2 Hz: IH); 6.60 (dd, J = 16.5 and 10.5 Hz: IH); 7.18 (dd, J = 9 and 2 Hz: IH); 7.88 (d, J = 2 Hz: IH); 8.00 (d, J = 9 Hz: IH); 10.40 (unresolved peak: IH).
N-[6-chloro-lH-indazol-3-yl1propenamide

5 cm of 5N hydrochloric acid are added to 160 mg of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]]propenamide described previously, in 10 cm of ethanol. The medium is heated at about 78°C for 30 minutes. The mixture is then allowed to return to about 19°C and 6 cm" of 5N sodium hydroxide are added. The reaction medium is evaporated under reduced pressure (2 kPa; 40°C) and the residue is taken up in 50 cm of ethyl acetate, 25 cm of tetrahydrofuran and 20 cm of distilled water. The organic phase is washed with 50 cm of saturated aqueous sodium chloride solution. The resulting solution is then dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 40°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 1.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume) and collecting 7 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 10 cm of dichloromethane, the insoluble material is filtered off on a sinter funnel and this mixture is washed with 2x5 cm of dichloromethane. After drying (90 Pa; 45°C), 10 mg of N-[6-chloro-lH-indazol-3-yl]propenamide are thus obtained in the form of a white solid melting at 205°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 5.82 (dd, J = 10.5 and 2 Hz: IH); 6.34 (dd, J = 17 and 2 Hz: IH); 6.60 (dd, J = 17 and 10.5 Hz: IH); 7.10 (dd, J = 9 and 2 Hz: IH); 7.54 (d, J = 2 Hz: IH); 7.95 (d, J = 9 Hz: IH); 10.78 (broad unresolved peak: IH); 12.86 (broad unresolved peak: IH).
EXAMPLE 22
N-[5-(trifluoromethvl)-lH-indazol-3-yl]butanamide
0.26 cm of butyryl chloride is added to 500 mg of 5-(trifluoromethyl)-lH-inda2ole-3-amine, prepared according to patent US 3 133 081, in 15 cm of pyridine, and cooled to about 5°C. The reaction medium is allowed to return to about 19°C over 12 hours. The reaction medium is evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 15 cm of ethyl acetate and 15 cm of distilled water. The

organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 15 cm' of dichloromethane, filtered and dried under reduced pressure (90 Pa; 50°C) to give 390 mg of N-[5-(trifluoromethyl)-lH-indazol-3-yl]butanamide in the form of an off-white soHd melting at 230°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.97 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.43 (t, J = 7 Hz: 2H); 7.60 (dd, J = 9 and 1.5 Hz: IH); 7.65 (d, J = 9 Hz: IH); 8.34 (broad s: IH); 10.60 (broad s: IH); 13.06 (broad s: IH).
EXAMPLE 23
N-[5-nitro-lH-indazol-3-vllbutanamide
0.58 cm' of butyryl chloride is added to 1 g of 5-nitro-lH-indazole-3-amine, prepared as described in patent US 742 430, in 25 cm of pyridine, and cooled to about 5°C. The reaction medium is allowed to return to about 19°C over 12 hours. The insoluble material present is filtered off and the filtrate is then evaporated under reduced pressure (2kPa; 50°C). The residue is taken up in 15 cm of ethyl acetate and 15 cm of distilled water. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume) and collecting 20 cm"' fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 50°C), 480 mg of N-[5-nitro-lH-indazol-3-yl]butanamide are thus obtained in the form of a white solid.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.98 (t, J - 7.5 Hz: 3H); 1.70 (mt: 2H); 2.46 (t, J = 7 Hz: 2H); 7.63 (d, J = 9 Hz: IH); 8.18 (dd, J = 9 and 2 Hz: IH); 9.05 (d, J - 2Hz: IH); 10.77 (unresolved peak: IH); from 13.00 to 13.70 (broad unresolved peak: IH).

EX.\MPLE 24
N-[6-bromo-lH-iDdazol-3-vnbutanamide
0.24 cm of butyryl chloride is added to 500 mg of 6-bromo-lH-indazole-3-amine described previously in Example 12, in 15 cm of pyridine, and cooled to about 5°C. The reaction medium is allowed to return to about 19°C over 50 hours. The reaction medium is evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 15 cm of ethyl acetate and 15 cm of distilled water. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 15 cm of dichloromethane and filtered to give after drying (90 Pa; 50°C), 356 mg of N-[6-bromo-lH-indazol-3-yljbutanamide in the form of an off-white solid melting at 202°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (broad t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.39 (broad t, J = 7 Hz: 2H); 7.20 (broad d, J = 9 Hz: IH); 7.68 (broad s: IH); 7.78 (broad d, J = 9Hz: IH); 10.40 (unresolved peak: IH); 12.75 (unresolved peak: IH).
EXAMPLE 25
N-[6-chloro-l-f[2-(trimethvlsilvl)ethoxv1methyll-lH-indazol-3-vll1butanamide
3 g of N-(6-chloro-lH-indazol-3-yl)butanamide, described previously in Example 11, dissolved in 40 cm of dimethylformamide are added to 606 mg of 60% sodium hydride in 20 cm of dimethylformamide. After cooling to about 5°C, 2.68 cm of [[2-(trimethylsilyl)ethoxy]methyl] chloride in 10 cm of dimethylformamide are added. The temperature is allowed to return to about 21 °C and the mixture is stirred for 2 hours. The reaction medium is then evaporated under reduced pressure (2 kPa; 45°C). The residue is taken up in 200 cm of ethyl acetate and 100 cm' of distilled water. This mixture is washed again with 2100 cm of distilled water and with 100 cm' of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under

reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume) and collecting 100 cm"' fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 50°C), 3 g of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]]butanamide are thus obtained in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): - 0.08 (s: 9H);.0.83 (broad t, J = 8 Hz: 2H); 0.96 (t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.40 (t, J = 7.5 Hz: 2H); 3.53 (t, J = 8 Hz: 2H); 5.66 (s: 2H); 7.16 (dd, J = 9 and 2 Hz: IH); 7.86 (d, J = 2 Hz: IH); 7.88 (d, J = 9 Hz: IH); 10.53 (unresolved peak: IH).
N-f6-(3-pvridvn-l-r[2-(trimethvlsilvnethoxv]methvn-lH-iDdazol-3-vHbutanamide
900 mg of diethyl-3-pyridylborane, 1.86 g of caesium fluoride, 18.4 mg of palladium acetate and finally 48 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added to 1.5 g of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 40 cm of dioxane. The mixture is then heated at about 100°C for 17 hours and then filtered through a sinter funnel and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up m 75 cm of ethyl acetate and 50 cm of distilled water. The organic phase is washed again with 50 cm' of distilled water and with 50 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure under the conditions described previously. The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume) and collecting 25 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 50°C), 900 mg of N-[6-(3-pyridyl)-l-[[2-

(triraethylsilyl)ethoxy]methyI]-lH-indazol-3-yl]butanamide are thus obtained in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.09 (s: 9H); 0.84 (broad t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.70 (mt: 2H); 2.43 (t, J = 7.5 Hz: 2H); 3.59 (t, J = 8 Hz: 2H); 5.76 (s: 2H); 7.52 (dd, J = 9 and 2 Hz: IH); 7.55 (broad dd, J = 8.5 and 4.5 Hz: IH); 7.97 (d, J = 9 Hz: IH); 8.09 (broad s: IH); 8.20 (ddd, J = 8.5 - 2.5 and 2 Hz: IH); 8.63 (dd, J = 4.5 and 2 Hz: IH); 9.02 (broad d, J = 2.5 Hz: IH); 10.51 (unresolved peak: IH).
N-[6-(3-pvridvl)-lH-iDdazol-3-vnbutanamide
13.3 cm of tetrabutylaramonium fluoride as a IM solution in tetrahydrofuran are added to 900 mg of N-[6-(3-pyridyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 20 cm of tetrahydrofuran. The reaction medium is heated at about 66°C for 21 hours. The heating is then stopped and 100 cm of ethyl acetate are added. This mixture is washed with 50 cm' of saturated aqueous sodium hydrogen carbonate solution and then with 2x50 cm of distilled water and 50 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 fim; diameter 2 cm), eluting with ethyl acetate and collecting 25 cm fi-actions. The fiactions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 50°C), 380 mg of N-[6-(3-pyTidyl)-lH-indazol-3-yl]butanamide are thus obtained in the form of a white product melting at 205°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J - 7.5 Hz: 3H); 1.70 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 7.42 (dd, J = 9 and 1.5 Hz: IH); 7.53 (ddd, J = 8 - 5 and 0.5 Hz: IH); 7.73 (broad s: IH); 7.92 (broad d, J = 9 Hz: IH); 8.18 (ddd, J = 8 - 2

and 1.5 Hz: IH); 8,62 (dd, J = 5 and 2 Hz: IH); 8.98 (broad d. J = 1.5 Hz: IH); 10.37 (unresolved peak: IH); 12.80 (unresolved peak: IH).
EXAMPLE 26
4-iodo-lH-indazole-3-ainine
1.2 cm of hydrazine monohydrate are added to 2 g of 2-fluoro-6-iodobenzonitrile in 25 cm of ethanol. The reaction medium is then refluxed at about 78°C for 12 hours. The medium is allowed to return to about 20°C and 20 cm of distilled water are then added in order to precipitate the product. The insoluble material is filtered on a sinter funnel, rinsed with 20 cm of distilled water and then taken up in 20 cm of dichloromethane. The organic phase is then dried over magnesium sulphate and evaporated under reduced pressure (2 kPa;45°C). After drying (90 Pa; 50°C), 1.65 g of 4-iodo-lH-indazole-3-amine are obtained in the form of a yellow solid melting at 157°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 5.05 (broad s: 2H); 6.95 (dd, J = 7.5 and 8.5 Hz: IH); 7.30 (dd, J = 8.5 and 1 Hz: IH); 7.37 (broad d, J = 7.5 Hz: IH); 11.80 (unresolved peak: IH).
N-[4-iodo-lH-iDdazol-3-vl]butanamide
0.20 cm of butyryl chloride is added to 500 mg of 4-iodo-lH-indazole-3-amine, described previously, in 15 cm of pyridine, and cooled to about 5°C. The reaction medium is allowed to return to about 19°C over 50 hours. The reaction medium is evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 15 cm of ethyl acetate, 15 cm' of tetrahydrofuran and 15 cm' of distilled water. The organic Dhase is dried over magnesium sulphate and then filtered through a sinter funnel and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 15 cm Df dichloromethane and filtered. The insoluble material is taken up in 10 cm of nethanol and filtered off and the filtrate is evaporated under reduced pressure, to give

after drying (90 Pa; 50X), 70 mg of N-[4-iodo-lH-indazol-3-yl]butanamide in the form of an off-white sohd.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (broad t, J = 7.5 Hz: 3H); 1.68 (ml: 2H); 2.39 (broad t, J = 7 Hz: 2H); 7.09 (t, J = 8 Hz: IH); 7.54 (d, J = 8 Hz: IH); 7.58 (broad d, J = 8 Hz: IH); 9.68 (broad s: IH); 13.08 (unresolved peak: IH).
EXAMPLE 27
N- r6-phenvl)-l - \ f 2-(trimethvlsilvl)eth oxyl methyll-l H-indazoI-3-vl] butan amide
497 mg of phenylboronic acid, 1.24 g of caesium fluoride, 12.35 mg of palladium acetate and finally 48 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added to 1.5 g of N-[6-chloro-l-[[2-(trimethylsilyl)-ethoxy]methyl]-lH-indazol-3-yl]butanamide, described above in Example 25, in 30cm' of dioxane. The mixture is then heated at about 100°C for 18 hours and then filtered through a sinter funnel and evaporated under reduced pressure (2 kPa; 50°C). The residue is rinsed with 50 cm of tetrahydrofuran and 50 cm of distilled water. The resulting residue is taken up in 75 cm of ethyl acetate and 50 cm of distilled water. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure under the conditions described previously. The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (75/25 by volume) and collecting 25 cm fi'actions. The fi"actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50-C). After drying (90 Pa; 50°C), 1 g of N-[6-phenyl)-1 -[[2-(trimethylsilyl)ethoxy]methyl]-1 H-indazol-3-yl]butanamide is thus obtained in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.08 (s: 9H); 0.84 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.59 (t, J = 8 Hz: 2H); 5.74 (s: 2H); 7.42 (broad t, J = 7.5 Hz: IH); 7.47 (dd, J = 9 and 1.5 Hz:

IH); 7.53 (broad t, J = 7.5 Hz: 2H); 7.79 (broad d, J = 7.5 Hz: 2H); 7.93 (d, J = 9 Hz: IH); 7.96 (broad s: IH); 10.48 (unresolved peak: IH).
N-f6-phenvl-lH-mdazol-3-vnbutanamide
14.65 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 900 mg of N-[6-phenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide, described previously, in 30 cm of tetrahydrofuran. The reaction medium is heated at about 66°C for 16 hoiirs. The heating is then stopped and 75 cm"' of ethyl acetate are added. This mixture is washed with 75 cm"' of saturated aqueous sodium hydrogen carbonate solution and then with 2x75 cm of distilled water and 50 cm of saturated aqueous sodium chloride solution. The organic phase is dned over magnesium sulphate, filtered through a sinter funnel and evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 3.5 cm), eluting with ethyl acetate and collecting 35 cm fi-actions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 10 cm of ethyl acetate and then filtered on a sinter funnel, and this mixture is washed with 2x5 cm of ethyl acetate and with 20 cm of diisopropyl ether. After drying (90 Pa; 50°C), 420 mg of N-[6-phenyl-lH-indazol-3-yl]butanamide are thus obtained in the form of a white product melting at 220°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.99 (broad t, J = 7 Hz: 3H); 1.70 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 7.37 (dd, J = 9 and 1.5 Hz: IH); 7.40 (broad t, J = 7.5 Hz: IH); 7.51 (broad t, J = 7.5 Hz: 2H); 7.63 (broad s: IH); 7.74 (broad d, J = 7.5 Hz: 2H); 7.98 (d, J = 9 Hz: IH); 10.34 (unresolved peak: IH); 12.70 (unresolved peak: IH).
EXAMPLE 28
N-f6-bromo-5,7-dinitro-lH-indazol-3-vl]butanamide

470 mg of nitronium tetrafluoroborate are added in a single portion to 500 mg of N-[6-bromo-lH-indazol-3-yl]butanamide, described previously in Example 24, in 20 cm of acetonitrile, cooled to about 3°C. The resulting mixture is allowed to return to about 19°C over 14 hours. 15 cm' of ethyl acetate and 15 cm' of distilled water are added to the reaction medium. The medium is then evaporated under reduced pressure (2 kPa; 40°C) and the residue is taken up in 20 cm of dichloromethane. The insoluble material is filtered off and washed with 20 cm of diisopropyl ether. After drying (90 Pa; 45°C), 200 mg of N-[6-bromo-5,7-dinitro-lH-indazol-3-yl]butanamide are thus obtained in the form of an ochre-coloured solid melting at 260°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.45 (t, J = 7.5 Hz: 2H); 9.05 (s: IH); 11.06 (unresolved peak: IH); 14.04 (unresolved peak: IH).
EXAMPLE 29
N-[6-bromo-7-nitro-lH-indazol-3-vl1butanamide
235 mg of nitronium tetrafluoroborate are added in a single portion to 500 mg of N-[6-bromo-lH-indazol-3-yl]butanamide, described previously in Example 24, in 25 cm of acetonitrile, cooled to about 3°C. The mixture is maintained at about 3°C for 1 hour and the resulting mixture is then allowed to return to about 19°C over 14 hours. 15 cm of ethyl acetate and 15 cm of distilled water are added to the reaction medium. The medium is then evaporated under reduced pressure (2 kPa; 40°C) and the residue is taken up in 20 cm of dichloromethane. The insoluble material is filtered off and washed with 20 cm of diisopropyl ether. The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 ixm; diameter 3.5 cm), eluting with ethyl acetate/cyclohexane (30/70 by volume) and collecting 35 cm' fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 50°C), 30 mg of N-[6-bromo-7-nitro-lH-indazol-3-yl]butanamide are thus obtained in the form of a white product melting at 248°C.

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.43 (t, J = 7.5 Hz: 2H); 7.54 (broad d, J = 9 Hz: IH); 8.13 (d, J = 9 Hz: IH); 10.68 (unresolved peak: IH); 13.44 (broad unresolved peak: IH).
EXAMPLE 30
N-r6-bromo-5-Ditro-lH-iDdazol-3-vl1butanamide
During the purification by chromatography of Example 29 under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 ptm; diameter 3.5 cm), eluting with ethyl acetate/cyclohexane (30/70 by volimie), 35 cm fi-actions are collected. The fi-actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 50°C), 10 mg of N-[6-bromo-5-nitro-lH-indazol-3-yl]butanamide are thus obtained in the form of a white product melting at 259°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.96 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.43 (t, J = 7.5 Hz: 2H); 7.95 (s: IH); 8.81 (s: IH); 10.80 (unresolved peak: IH); fi-om 12.70 to 13.70 (broad unresolved peak:'iH).
EXAMPLE 31
N-r6-(furan-3-vl)-l-fr2-(trimethvlsilvl)ethoxv]methvl]-lH-iDdazol-3-vljbutanamide
457 mg of furan-3-boronic acid, 1.24 g of caesium fluoride, 13 mg of palladium acetate and finally 31 mg of 2-dicyclohexyIphosphine-2-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously in Example 25, in 30 cm of dioxane. The mixture is then heated at about 100°C for 23 hours. A further 457 mg of furan-3-boronic acid, 1.24 g of caesium fluoride, 13 mg of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added and refluxing is continued for 7 hours. The mixture is then allowed to return to about 19°C over 16 hours and then filtered

through a sinter funnel and evaporated under reduced pressure (2 kPa; 50°C). The residue is rinsed with 50 cm' of tetrahydrofuran and 50 cm of distilled water. The resulting residue is taken up in 75 cm' of ethyl acetate and 50 cm of distilled water. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure under the conditions described previously. The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 /im; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume) and collecting 35 cm fi-actions. The fractions containing the expected product are combined and evaporated under reduced pressure (2kPa; 50°C). 130 mg of N-[6-(furan-3-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are thus obtained in the form of an orange-coloured oil.
The mass spectrum was performed by electron impact (70eV)
EI m/z = 399 M m/z = 282 Ci6H,3N302; m/z = 271 CsHnNjOi m/z = 212 C.HioNjO' m/z = 73 CsHgSi
N-[6-(furan-3-vl)-lH-iDdazol-3-vl]butanamide
1.95 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 120 mg of N-[6-(furan-3-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 5 cm' of tetrahydrofuran. The reaction medium is heated at about 66°C for 17 hours. The heating is then stopped and 50 cm' of ethyl acetate are added. This mixture is washed with 50 cm' of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm' of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and evaporated under reduced pressure (2 kPa; 50'C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2 cm), eluting with ethyl acetate/cyclohexane (30/70 by volume) and collecting 15 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2kPa; 50°C). The residue is taken up in 10 cm' of

diisopropyl ether. This solution is filtered through a sinter fiinnel to give, after drying (90 Pa; 50°C), 35 mg of N-[6-(fxiran-3-yl)-lH-indazol-3-yl]butanamide in the form of a white soHd melting at 195°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (broad t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.39 (t, J = 7Hz: 2H); 7.06 (broad s: IH); 7.34 (broad d, J = 9 Hz: IH); 7.60 (broad s: IH); from 7.70 to 7.85 (mt: 2H); 8.27 (broad s: IH); 10.29 (unresolved peak: IH); 12.62 (unresolved peak: IH).
EXAMPLE 32
N-f6-[4-(phenvlmethoxv)phenvl1-l-[[2-(trimethvlsilvl)ethox\'lmetbvll-lH-indazol-3-vllbutanamide
930 mg of 4-benzyloxyphenylboronic acid, 1.24 g of caesium fluoride, 13 mg of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously in Example 25, in 30 cm' of dioxane. The mixture is then heated at about 100°C for 5 hours. The mixture is then allowed to return to about 19°C and is then filtered through a sinter funnel and evaporated under reduced pressure (2 kPa; 50°C). The residue is rinsed with 50 cm of tetrahydrofuran and 50 cm of distilled water. The resulting residue is taken up in 150 cm' of ethyl acetate, 50 cm of distilled water and 50 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure under the conditions described previously. The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 ixm; diameter 3.5 cm), elufing with a cyclohexane/ethyl acetate mixture (80/20 by volume) and collecting 35 cm' fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). 1.2 g of N-[6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are thus obtained in the form of an orange-coloured oil.

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.08 (s: 9H); 0.83 (broad t, J = 8 Hz: 2H); 0.99 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.42 (broad t, J = 7 Hz: 2H); 3.57 (broad t, J = 8 Hz: 2H); 5.21 (s: 2H); 5.73 (s: 2H); 7.16 (d, J = 8.5 Hz: 2H); from 7.30 to 7.50 (mt: 4H); 7.51 (broad d, J = 7.5 Hz: 2H); 7.73 (d, J = 8.5 Hz: 2H); from 5 7.85 to 7.95 (mt: 2H); 10.46 (unresolved peak: IH).
N- [6- f 4-(phenvlmethoxv)phenvn-l H-indazol-3-vll butanamide
14 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1.2 g of N-[6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazoI-3-yl]butanamide, described previously, in 30 cm of tetrahydrofuran. The
) reaction medium is heated at about 66°C for 17 hours. The heating is then stopped and 75 cm of ethyl acetate are added. This mixture is washed with 50 cm of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm' of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter furmel and evaporated under reduced
) pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 3.5 cm), eluting with cyclohexane/ethyl acetate (80/20 by volume) and collecting 30 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 2x2 cm of diisopropyl ether. This mixture is filtered through a sinter furmel to give, after drying (90 Pa; 50°C), 220 mg of N-[6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yljbutanamide in the form of a white solid melting at 220°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.00 (broad t, J - 7.5 Hz 3H); 1.69 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 5.20 (s: 2H); 7.15 (d, J = 8.5 Hz: 2H) from 7.30 to 7.50 (mt: 3H); 7.33 (broad d, J = 9 Hz: IH); 7.51 (broad d, J = 7.5 Hz 2H); 7.57 (broad s: IH); 7.68 (d, J = 8.5 Hz: 2H); 7.83 (d, J = 9Hz: IH); 10.31 (unresolved peak: IH); 12.64 (unresolved peak: IH).
EXAMPLE 33

N-[6-(4-hvdroxvphenvl)-lH-indazol-3-vllbutanamide
0.15 cm of iodotrimethylsilane and then 5 cm of tetrahydrofuran are added to 200 mg of N-[6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide, described previously, in 7.5 cm of acetonitrile, and the medium is heated at about 82°C for 2 hours. 0.15 cm of iodotrimethylsilane is added and heating is continued for 17 hours. The reaction medium is then evaporated to dryness imder reduced pressure (2 kPa; 40°C). The residue is taken up in 75 cm of ethyl acetate, and this mixture is then washed with 2x50 cm' of saturated aqueous sodium sulphate solution and with 50 cm of saturated sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered and then evaporated under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 /im; diameter 1.5 cm), eluting with ethyl acetate and collecting 30 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is washed with 3x5 cm of diisopropyl ether. It is filtered off on a sinter funnel and, after drying (90 Pa; 40°C), 100 mg of N-[6-(4-hydroxyphenyl)]-lH-indazol-3-yl]butanamide are thus obtained in the form of a white solid melting at about 235°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (broad t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7.5 Hz: 2H); 6.88 (d, J = 8.5 Hz: 2H); 7.29 (broad d, J = 9 Hz: IH); 7.51 (broad s: IH); 7.55 (d, J = 8.5 Hz: 2H); 7.80 (d, J = 9 Hz: IH); 9.56 (broad s: IH); 12.29 (unresolved peak: IH).
EXAMPLE 34
N-f6-chloro-lH-indazol-3-vl]benzenamide
0.69 cm of benzoyl chloride is added to 1 g of 6-chloro-lH-indazole-3-amine in 15 cm' of pyridine, cooled to about 3°C. The reaction medium is allowed to return to about 19°C over 12 hours and is then evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 25 cm of ethyl acetate and 25 cm of distilled water. The organic phase is washed with 25 cm of distilled water and 25 cm of

saturated aqueous sodium chloride solution. The resulting solution is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60m; diameter 4 cm), eluting with a dichloromethane/methanol mixture (99/1 by volume) and collecting 15 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 990 mg of N-[6-chloro-lH-indazol-3-yl]benzenamide are obtained in the form of a white soUd melting at 188°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 7.13 (dd, J = 9 and 1.5 Hz: IH); from 7.50 to 7.70 (mf. 3H); 7.59 (broad s: IH); 7.82 (d, J = 9Hz: IH); 8.10 (broad d, J = 7.5 Hz: 2H); 10.88 (unresolved peak: IH); 12.95 (unresolved peak: IH).
EXAMPLE 35
N-I6-(3.5-difluorophenvl)-l-[[2-(trimethvlsilvnethoxv]methvn-lH-indazol-3-vUbutanamide
645 mg of 3,4-difluorophenylboronic acid, 1.24 g of caesium fluoride, 13 mg of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously in Example 25, in 30 cm of dioxane. The mixture is then heated at about 100°C for 17 hours. The mixture is allowed to return to about 19°C and then filtered through a sinter funnel and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 75 cm" of ethyl acetate and 50 cm of distilled water. The insoluble material is filtered off on a sinter funnel The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure under the conditions described previously. The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume) ind collecting 35 cm fractions. The fractions containing the expected product are

combined and evaporated under reduced pressure (2 kPa; SO'C). 1.1 g of N-[6-(3,5-difluorophenyl)-l-[[2-(trimethylsi]yl)ethoxy]methyI]-lH-inda2ol-3-yI]butanamide are obtained in the form of an orange-coloured oil.
1H NMR spectrum (400 MHz, (CD3)2SO-d6, 5 in ppm): - 0.08 (s: 9H); 0.85 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.70 (mt: 2H); 2.43 (t, J = 7.5 Hz: 2H); 3.59 (t, J = 8 Hz: 2H); 5.77 (s: 2H); 7.28 (tt, J = 9 and 2 Hz: IH); 7.55 (dd, J = 9 and 2 Hz: IH); 7.59 (mt: 2H); 7.95 (d, J = 9 Hz: IH); 8.12 (broad s: IH); 10.53 (unresolved peak: IH).
N-f6-f3,5-difluoropheDvl)-lH-indazol-3-vllbutanamide
14 cm"' of tetrabutylammonium fluoride as a IM solution in tetrahydrofiiran are added to 1.1 g of N-[6-(3,5-difluorophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of tetrahydrofuran. The reaction medium is heated at about 66°C for 18 hours. The heating is then stopped and 100 cm of ethyl acetate are added. This mixture is washed with 2x50 cm of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 p.m; diameter 3.5 cm), eluting with cyclohexane/ethyl acetate (60/40 by volume) and collecting 35 cm' fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 2x5 cm of diisopropyl ether. This mixture is filtered through a sinter funnel and dried under reduced pressure (90 Pa; 50°C) to give 340 mg of N-[6-(3,5-difluorophenyl)-lH-indazol-3-yl]butanamide in the form of a white solid melting at 260°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.00 (t, J = 7 Hz: 3H); 1.70 (mt: 2H); 2.42 (t, J - 7 Hz: 2H); 7.27 (tt, J = 9 and 2 Hz: IH); 7.43 (dd, J = 9 and 2 Hz: IH); 7.52 (mt: 2H); 7.76 (broad s: IH); 7.90 (d, J = 9 Hz: IH): 10.37 (unresolved peak: IH); 12.83 (broad unresolved peak: IH).

EXAMPLE 36
N-[6-(3-thiophenvn-l-f[2-(trimethvlsilvI)ethoxvlmethvl]-lH-indazol-3-vU butanamide
522 mg of 3-thienylboronic acid, 1.24 g of caesium fluoride, 13 mg of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyI are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously in Example 25, in 30 cm of dioxane. The mixture is then heated at about 100°C for 2 hours. 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl and 13 mg of palladium acetate are added and the mixture is refluxed for 17 hours. The mixture is then allowed to return to about 19°C and then filtered through a sinter funnel, and 75 cm of ethyl acetate and 50 cm of distilled water are added. The insoluble material is filtered off on a sinter funnel. The organic phase is dried over magnesium sulphate, filtered through a sinter funnel and then evaporated under reduced pressure under the conditions described previously. The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (90/10 by volume) and collecting 50 cm fractions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). 570 mg of N-[6-(3-thiophenyl)-l-[[2-(trimethylsiIyl)ethoxy]methyl]-lH-indazoI-3-yljbutanamide are obtained in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.08 (s: 9H); 0.85 (t, J -8 Hz: 2H); 0.99 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.42 (t, J = 7.5 Hz: 2H); 3.58 (t, J = 8 Hz: 2H); 5.72 (s: 2H); 7.55 (dd, J = 8.5 and 1.5 Hz: IH); 7.71 (d, J = 2 Hz: 2H); 7.88 (d, J = 8.5 Hz: IH); 8.00 (t, J = 2 Hz: IH); 8.02 (broad s: IH); 10.45 (unresolved peak: IH).
N-f6-(3-thiopheDvl)-lH-indazol-3-vl]butanamide

8.2 cm"' of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 570 mg of N-[6-(3-thiophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 20 cm of tetrahydrofuran. The reaction medium is heated at about 66°C for 18 hours. The heating is then stopped and 75 cm of ethyl acetate are added. This mixture is washed with 250 cm of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter fuimel and evaporated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60m; diameter 2.5 cm), eluting with cyclohexane/ethyl acetate (60/40 by volume) and collecting 20 cm' fi"actions. The fi-actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 2x5 cm of diisopropyl ether. This mixture is filtered through a sinter fimnel and evaporated under reduced pressure (2 kPa; 40°C) to give, after drying (90 Pa; 50°C), 260 mg of N-[6-(3-thiophenyl)-lH-indazol-3-yl] butanamide in the form of a white solid melting at about 198°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7,5 Hz: 3H); 1.69 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 7.45 (broad d, J = 9 Hz: IH); from 7.60 to 7.75 (mt: 2H); 7.70 (broad s: IH); 7.82 (d, J = 9 Hz: IH); 7.95 (dd, J = 3 and 1.5 Hz: IH); 10.32 (unresolved peak: IH); 12.66 (broad unresolved peak: IH).
EXAMPLE 37
N-f6-chloro-lH-indazol-3-vl]-2-thiophenacetamide
0.73 cm of 2-thiopheneacetyl chloride is added to 1 g of 6-chloro-lH-indazole-3-amine in 15 cm of pyridine, cooled to about 3°C. The reaction medium is allowed to return to about 19°C over 21 hours and is then evaporated under reduced pressure (2kPa; 50°C). The residue is taken up in 25 cm of ethyl acetate, 10 cm of tetrahydrofuran and 25 cm" of distilled water. The organic phase is washed with 25 cm of distilled water and 25 cm of saturated aqueous sodium chloride solution.

The resulting solution is dried over magnesium sulphate, filtered on a sinter funnel, rinsed with 5 cm of dimethylformamide and then evaporated under reduced pressure (2 kPa: 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 jxm; diameter 4 cm), eluting with a dichloromethane/methanol mixture (99/1 by volume) and collecting 15 cm fi-actions. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 210 mg of N-[6-chloro-lH-indazol-3-yl]-2-thiophenacetamide are obtained in the form of a white solid melting at 210°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 3.99 (s: 2H); from 6.95 to 7.10 (mt: 2H); 7.09 (dd, J = 9 and 2 Hz: IH); 7.43 (dd, J = 5 and 1.5 Hz: IH); 7.53 (d, J = 2Hz: IH); 7.82 (d, J = 9 Hz: IH); 10.76 (unresolved peak: IH); from 12.50 to 13.20 (broad unresolved peak: IH).
EXAMPLE 38:
N-|5-||(3-fluorophenvl)sulphonvnamino1-lH-indazol-3-vl1benzamide
N-[5-[[(3-Fluorophenyl)sulphonyl]amino]-lH-indazol-3-yl]benzamide may be obtained from 0.45 g of N-(5-amino-lH-indazol-3-yl)benzamide, 10 cm of pyridine and 0.35 g of (3-fluorophenyl)sulphonyl chloride. 0.6 g of N-[5-[((3-fluorophenyl)sulphonyl]amino]-lH-indazol-3-yl]benzamide is thus obtained in the form of a white sohd melting at 225°C (Analysis C20 H15 F N4 03 S, % calculated C: 58.53, H: 3.68, F: 4.63, N: 13.65, 0: 11.69, S: 7.81, % found C: 58.38, H: 3.42, N: 13.56, S: 7.44).
'H NMR (300 MHz, (CD3)2SO-d6, 5 in ppm): 7.10 (dd, J = 9 and 2 Hz: IH); 7.39 (d, J = 9Hz: IH); from 7.40 to 7.70 (mt: 7H); 7.42 ((broad s: IH); 8.07 (broad d, J = 7.5 Hz: 2H); 10.20 (broad unresolved peak: IH); 10.72 (broad s: IH); 12.77 (broad s: IH).

N-(5-Ainino-lH-indazol-3-yl)benzamide may be obtained from 0.6 g of N-(5-nitro-lH-indazol-3-yl)benzamide, 21 cm of ethanol, 4.2 g of ferrous sulphate, 6.6 cm' of water and 5.1 cm of 32% aqueous ammonia. 0.4 g of N-(5-amino-lH-indazol-3-yl)benzamide is thus obtained in the form of a yellow powder melting at 116°C.
N-(5-Nitro-lH-indazol-3-yl)benzamide may be obtained in the following manner: 0.39 cm' of benzoyl chloride is added dropwise to a solution of 0.6 g of 5-nitro-lH-indazole-3-amine and 5 cm of pyridine, cooled to 0°C. The medium is returned to a temperature in the region of 20°C and stirred for 18 hours. After addition of 20 cm of distilled water, the medium is extracted with 20 cm and 10 cm of ethyl acetate. The organic phases are combined, dried over magnesium sulphate, filtered and concentrated by evaporation tmder reduced pressure. The residue thus obtained is purified by chromatography on a column of silica with a dichloromethane/methanol mixture (99/1 by volume) as eluent. 0.9 g of N-(5-nitro-lH-indazol-3-yl)benzamide is thus obtained in the form of an orange-coloured solid melting at 231°C.
EXAMPLE 39
N-r6-(2-pheDvlethvl)-l-ff2-(trimethvlsilvl)ethoxv1methvll-lH-indazol-3-vl1-
butanamide
27.2 cm' of 9-borabicyclo[3.3.1]nonane are added by syringe to a solution of 0.8 cm of styrene in 35 cm of dioxane and the mixture is heated at 75°C for 1 hour. 5.5 cm' of 5N sodium hydroxide are added to the cooled solution, followed by successive addition of 1 g of N-[6-chIoro-l-[[2-(trimethyIsilyl)ethoxy]methyI]-lH-indazo]-3-yljbutanamide prepared in Example 25, 1.2 g of caesium fluoride, 32.2 mg of 2-dicyclohexylphosphino-2'-(N,N-dimethylamino)biphenyl and 12.3 mg of palladium acetate, and the mixture is heated at reflux for 3 hours. After cooling, 50 cm of water and 75 cm of ethyl acetate are added; the organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa; 40°C) to give 4.5 g of crude product, which is chromatographed under an argon pressure of 50 kPa, on a column of silica

(

gel (particle size 40-60 urn; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (75/25 by volume). The fractions containing the expected product are combined and then evaporated under reduced pressure (2 kPa; 40°C) to give 1.4 g of N-[6-(2-phenyIethyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butan-amide in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): - 0.06 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.97 (t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 3.00 (mt: 4H); 3.53 (t, J = 8 Hz: 2H); 5.62 (s: 2H); 7.04 (broad d, J = 8.5 Hz: IH); from 7.15 to 7.40 (mt: 5H); 7.50 (broad s: IH); 7.74 (d, J = 8.5 Hz: IH); 10.38 (unresolved peak: IH).
EI m/z = 437 M'
m/z = 320 [M - OCH2CH2Si(CH3)3]*
m/z = 309 [M - CaHnOSi]-
A'-[6-f2-pbenvlethvl)-lH-iDdazol-3-vllbutanamide
19.2 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to a solution of 1.4g of jV-[6-(2-phenylethyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-l//-indazol-3-yl]butanamide, described previously, in 40 cm' of tetrahydrofuran, and the mixture is refluxed for 18 hours. 100 cm of ethyl acetate are added to the reaction medium and the organic phase is washed successively with 100 cm of saturated sodium hydrogen carbonate solution, 100 cm of water and 50 cm" of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa; 50°C) to give 1.4 g of crude product in the form of an orange-coloured oil, which is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 /im; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (30/70 by volume). The fractions containing the expected product are concentrated to

dryness to give 0.43 g of a yellow oil which, after trituration in 20 cm of diisopropyl ether and filtration, gives 0.34 g of a white solid in a purity of 70 %. After purification by HPLC-MS, 0.11 g of product is obtained, which is triturated with 10 cm of diisopropyl ether, filtered and washed with 5 cm of diisopropyl ether, and then dried under reduced pressure (90 Pa; 40°C) to give 0.10 g of N-[6-(2-phenylethyl)-lH-indazol-3-yl]butanamide in the form of a white solid melting at 175°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.97 (t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.38 (t, J = 7 Hz: 2H); 2.99 (mt:4H); 6.97 (broad d, J = 9Hz: IH); from 7.15 to 7,35 (mt: 5H); 7.20 (broad s: IH); 7.77 (d, J = 9 Hz: IH); 10.22 (broad s: IH); 12.44 (broad s: IH).
EXAMPLE 40
6,7-difluoro-lH-indazole-3-amine:
0.32 cm' of hydrazine monohydrate is added to 0.46 cm of 2,3,4-trifluorobenzonitrile in 10 cm of absolute ethanol. The medium is heated at about 75°C for 17 hours and then 10 cm of ethyl acetate, 5 cm of tetrahydrofliran and 5 cm of distilled water are added. The organic phase is separated out after settling of the phases has taken place, and is washed again with 10 cm of distilled water and then with 10 cm of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 1.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume). The fractions containing the expected product are combined and then evaporated under reduced pressure (2kPa; 40°C); after drying (90 Pa; 40°C), 100 mg of 6,7-difluoro-lH-indazole-3-amine are obtained in the form of a white solid melting at 183°C.

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 5.57 (unresolved peak: 2H); 6.93 (mt: IH); 7.52 (ddd, J = 8.5 - 4.5 and 1 Hz: IH); 12.01 (unresolved peak: IH).
N-f6J-difluoro-lH-indazol-3-vI)butaDamide:
0.61 cm of butyryl chloride is added to 1 g of 6,7-difluoro-lH-indazole-3-amine, described previously, in 15 cm' of pyridine, after cooling to about 3°C, and the mixture is then left at room temperature for 76 hours. The reaction medium is concentrated under reduced pressure (2 kPa; 40°C) and the residue is taken up in 25 cm of ethyl acetate and 25 cm of water. The organic phase is washed with 25 cm of distilled water and then with 25 cm of saturated aqueous sodium chloride solution. After drying over magnesium sulphate, filtration and concentration under reduced pressure (2 kPa; 40°C), the residue obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of siUca gel (particle size 40-60 pim; diameter 3 cm), eluting with a dichloromethane/methanol mixture (98/2 by volume). The fi-actions containing the expected product are combined and then evaporated under reduced pressure (2 kPa; 40°C); after drying (90 Pa; 40°C), 596 mg of N-(6,7-difluoro-lH-indazol-3-yl)butanamide are obtained in the form of a white solid melting at 191°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.97 (t, J - 7.5 Hz: 3H); 1.67 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 7.10 (mt: IH); 7.63 (broad dd, J = 9 and 4.5 Hz: IH); 10.47 (broad unresolved peak: IH); 13.35 (broad unresolved peak: IH).
EXAMPLE 41
N-[6-(4-methoxvphenvl)-l-[f2-(trimethvlsilvl)ethoxvlmethvI]-lH-indazoI-3-vUbutanamide
900 mg of 4-methoxvphenylboronic acid, 1.24 g of caesium fluoride, 13.5 mg of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2'-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)-ethoxy] methyl]-lH-indazol-3-yl]butanamide, described previously in Example 25, in

30 cm' of dioxane. The mixture is then heated at about 100°C for 20 hours, the temperature is allowed to return to about 19°C over 72 hours and the reaction medium is then fihered on a sinter furmel and evaporated tmder reduced pressure (2 kPa; 50°C). The residue is taken up in 50 cm of ethyl acetate and 50 cm of distilled water. The organic phase is washed again with 50 cm" of distilled water and with 50 cm of saturated aqueous sodium chloride solution. The aqueous phase is dried over magnesium sulphate, filtered and then evaporated under reduced pressure under the conditions described previously. The residue is purified by chromatography imder an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); after drying (90 Pa; 50°C), 1 g of N-[6-(4-methoxyphenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide is obtained in the form of a yellow oil.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.09 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.97 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 3.56 (t, J = 8 Hz: 2H); 3.83 (s: 3H); 5.72 (broad s: 2H); 7.08 (broad d, J = 8.5 Hz: 2H); 7.42 (broad d, J = 8.5 Hz: IH); 7.72 (d, J = 8.5 Hz: 2H); from 7.85 to 7.95 (mt: 2H); 10.45 (unresolved peak: IH).
EI m/z = 437 M'
m/z = 320 [M - OCH:CH2Si(CH3)3]*
m/z = 309 [M-CfeHi.OSi]
N-[6-(4-methoxvphenvl)-lH-indazol-3-vl]butanamide
13.6 cm' of tetrabutylammonium fluoride as a IM solution in tetrahydrofiiran are added to 1 g of N-[6-(4-methoxyphenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of tetrahydrofuran, and the reaction medium is then heated at about 66°C for 19 hours. The heating is then

stopped and 75 cm of ethyl acetate are added. This mixture is washed with 2x50 cm" of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm' of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 5G°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 jLtm; diameter 2.5 cm), eluting with an ethyl acetate/cyclohexane mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2kPa; 50°C). The residue is taken up in lOcm of diisopropyl ether, filtered and washed with 2x5 cm' of diisopropyl ether and then with 2x5 cm of ethyl acetate; after drying (90 Pa; 50°C), 500 mg of N-[6-(4-methoxyphenyl)-lH-indazol-3-yljbutanamide are obtained in the form of a white product melting at 210°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.99 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 3.83 (s: 3H); 7.06 (d mt, J = 8.5 Hz: 2H); 7.33 (dd, J = 9 and 1.5 Hz: IH); 7.56 (broad s: IH); 7.78 (d mt, J = 8.5 Hz: 2H); 7.83 (d, J = 9 Hz: IH); 10.31 (unresolved peak: IH); 12.62 (unresolved peak: IH).
Example 42
N-r6-r4-(methvlthio)pheDvl]-l-[f2-(trimethvlsilvl)ethoxvlmethvl]-lH-indazol-3-vUbutanamide
0.81 g of 86% 4-methylthiophenylboronic acid, 1.24 g of caesium fluoride, 13.5 mg of palladium acetate and finally 31 mg of 2-dicyclohexyIphosphine-2-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)-ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously in Example 25, in 30 cm of dioxane. The mixture is then heated at about 100°C for 20 hours, the temperature is allowed to return to room temperature over 72 hours and the reaction medium is then filtered on a sinter fiinnel and evaporated under reduced pressure (2 kPa; 50°C). The work-up and the purification are performed by analogy with Example 41 above; 0.60 g of N-[6-(4-methylthiophenyl)-l-[[2-(trimethylsilyl)-

ethoxy]niethyl]-lH-indazol-3-yl]butanamide is thus obtained in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): - 0.09 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.97 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 2.55 (s: 3H); 3,57 (t, J = 8 Hz: 2H); 5.73 (s: 2H); 7.40 (broad d, J = 8.5 Hz: 2H); 7.45 (dd, J = 8.5 and 1.5 Hz: IH); 7.75 (d, J = 8.5 Hz: 2H); 7.91 (d, J = 8.5 Hz: IH); 7.94 (s: IH); 10.47 (unresolved peak: IH).
EI m/z = 455 M*'
m/z = 338 [M - OCH2CH2Si(CH3)3]
m/z = 327 [M-C6Hi20Si]-
N-f6-(4-methvlthiopheDvl)-lH-indazol-3-vnbutanamide
7.9 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 600 mg of N-[6-[4-(methylthio)phenyl]-l-[[2-(trimethylsilyl]ethoxy])-methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of tetrahydrofuran. The reaction medium is heated at about 66°C for 18 hours and the heating is then stopped and 75 cm of ethyl acetate are added. This mixture is washed with 2x50 cm of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 iim; diameter 2.5 cm), eluting with an ethyl acetate/cyclohexane mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 10 cm of diisopropyl ether, filtered and washed with 2x5 cm of diisopropyl ether and then with 2x3 cm of ethyl acetate; after drying

(90 Pa; 50°C), 320 mg of N-[6-[4-(methylthio)phenyI]-lH-inda2ol-3-yl]butanamide are obtained in the form of a white product melting at 225°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.99 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 2.54 (s: 3H); 7.36 (dd, J = 9 and 1.5 Hz: IH); 7.39 (d, J = 8.5 Hz: 2H); 7.62 (broad s: IH); 7.70 (d, J = 8.5 Hz: 2H); 7.86 (d, J = 9 Hz: IH); 10.33 (unresolved peak: IH); 12.69 (unresolved peak: IH).
EXAMPLE 43
N-f6-[4-(trifluoroinethoxv)phenvll-l-ff2-(trimethvlsilvl)ethoxvlmethvl]-lH-indazol-3-vllbutanamide
840 mg of 4-trifluoromethoxyphenylboronic acid, 1.24 g of caesium fluoride, 13.5 mg of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously in Example 25, in 30 cm of dioxane. The reaction medium is then heated at about 102°C for 20 hours and allowed to return to room temperature, and is diluted with 75 cm of ethyl acetate, filtered through a sinter funnel packed with Celite and concentrated to dryness under reducd pressure (2 kPa; 50°C). The work-up and the purification are performed by analogy with Example 41 described previously. 1 g of N-[6-[4-(trifluoromethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide is thus obtained in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.09 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.57 (t, J = 8 Hz: 2H); 5.74 (broad s: 2H); 7.46 (dd, J = 8.5 and 1.5 Hz: IH); 7.50 (broad d, J = 8.5 Hz: 2H); 7.90 (d, J = 8.5 Hz: 2H); 7.94 (d, J = 8.5 Hz: IH); 7.99 (broad s: IH); 10.49 (unresolved peak: IH).
EI m/z = 493 M'
m/z - 376 [M - OCH2CH2Si(CH3)3]

m/z = 365 [M-CsHuOSif
N-[6-(4-trifluoromethoxvphenvI)-lH-indazol-3-vl|butanamide
12.1 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofliran are added to 1 g of N-[6-[4-(trifluoromethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]-methyl]-lH-indazoI-3-yl]butanamide, described previously, in 30 cm of tetrahydrofiiran. The reaction medium is heated at about 66°C for 18 hours, the heating is then stopped and 75 cm of ethyl acetate are added. This mixture is washed with 2x50 cm of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and then concentrated under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with an ethyl acetate/cyclohexane mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 10 cm of diisopropyl ether, filtered on a sinter funnel and then washed successively with 10 cm of diisopropyl ether and then with 2x2 cm' of ethyl acetate. After drying (90 Pa; 50°C), 520 mg of N-[6-[4-(trifluoromethoxy)phenyl]-lH-indazol-3-yl]butanamide are obtained in the form of a white product melting at 234°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.99 (t, J - 7.5 Hz: 3H); 1.69 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 7.38 (broad d, J = 9 Hz: IH); 7.52 (d, J = 8.5 Hz: 2H); 7.67 (broad s: IH); 7.86 (d, J = 8.5 Hz: 2H); 7.89 (d, J = 9 Hz: IH); 10.36 (unresolved peak: IH); 12.75 (unresolved peak: IH).
EXAMPLE 44
N-[(6-(2-propenvl)-l-f|2-(trimethvlsilvl)ethoxv]methvn-lH-indazol-3-vl]butanamide

1.24 g of caesium fluoride, 0.77 cm of 2-allyl-4,4,5,5-tetramethyl-l,3,2-
dioxaborolane, 31.5 mg of 2-dicyclohexyIphosphino-2'-(N,N-dimethylamino)-
biphenyl and 13.5 mg of palladium acetate are successively added to a solution of 1 g
of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl)butanamide,
prepared in Example 25, in 30 cm of dioxane, and the mixture is refluxed for
18 hours. The reaction medium is filtered and taken up in 2x50 cm of ethyl acetate,
and the organic phase is washed successively with 50 cm of water and 50 cm of
saturated sodium chloride solution. After separating out the organic phase by settling,
drying over sodium sulphate, filtration and concentration to dryness under reduced
pressure (2kPa; 50°C) 1.3 g of brown oil are obtained, which is purified by
chromatography under an argon pressure of 50 kPa, on a colimm of sihca gel (particle
size 40-60 /im; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture
(90/10 by volume). After concentration and drying (90 Pa; 45°C), 0.72 g of N-[(6-(2-
propenyl-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide is
obtained in the form of a yellow oil in a purity of 75%.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.08 (s: 9H); 0.82 (t, J = 8 Hz: 2H); 0.96 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); from 3.45 to 3.60 (mt: 4H); from 5.05 to 5.20 (mt: 2H); 5.62 (s: 2H); 6.02 (mt: IH); 6.98 (broad d, J = 8.5 Hz: IH); 7.45 (broad s: IH); 7.75 (d, J = 8.5 Hz: IH); 10.38 (unresolved peak: IH).
EI m/z = 373 M
myz = 256 [M-OCH2CH2Si(CH3)3r
myz = 245 [M-C6Hi:0Si]
N-f(6-(l-propenvl)-lH-indazol-3-vl|butanamide
11.2cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to a solution of 0.70 g of N-[6-(l-propenyl)-l-[(2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide in 25 cm" of

tetrahydrofuran and the mixture is heated at reflux for 18 hours. 75 cm of ethyl acetate are added to the reaction medium and the organic phase is washed successively with 2x50 cm' of saturated sodium hydrogen carbonate solution and 2x50 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness imder reduced pressure (2 kPa; 50°C) to give 0.70 g of a brown solid. The crude product is purified by chromatography imder an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). After concentration of the fractions, 0.30 g of a mixture containing 50% of the expected product is obtained. By means of a final HPLC (Hypurity; C)8, 5ju.m colunrn; length 100 mm, diameter 30 mm, eluent: methanol-acetonitrile-water (38/38/24 by volume) containing 0.05% trifluoroacetic acid; flow rate 20 cmVmin) and concentration to dryness of the fractions, taken up in 5 cm' of ethyl acetate, filtration and drying (90 Pa; 45°C), 12 mg of N-[6-(l-propenyl)-lH-indazol-3-yl]butanamide are obtained in the form of white crystals melting at 195°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.97 (broad t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 1.89 (broad d, J = 6 Hz: 3H); 2.37 (t, J = 7 Hz: 2H); 6.38 (mt: IH); 6.55 (broad d, J = 16 Hz: IH); 7.17 (broad d, J = 8.5 Hz: IH); 7.29 (broad s: IH); 7.69 (d, J = 9 Hz: IH); 10.24 (unresolved peak: IH); 12.52 (unresolved peak: IH).
EXAMPLE 45
N-[6-chloro-lH-indazol-3-vll-2-pvndinecarboxamide
4.2 cm of diisopropylethylamine are added to 1 g of 6-chloro-lH-indazole-3-amine in 15 cm of pyridine. The reaction medium is cooled to about 8°C to add 1.08 g of picolinoyl chloride hydrochloride, and the temperature is allowed to return to room temperature over 18 hours. The reaction medium is concentrated to dryness under reduced pressure (2 kPa; 40°C) and the residue is then taken up in 25 cm of ethyl acetate and 25 cm of distilled water. The oreanir, nhncp ic wrocUtA ,,i*u T: — -c

water and then with 25 cm' of saturated aqueous sodium chloride solution. After drying over magnesium sulphate, filtration and concentration under reduced pressure (2 kPa; 40°C), the residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 [im; diameter 3 cm), eluting with a dichloromethane/methanol mixture (99/1 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 215 cm of diisopropyl ether. Afler filtration on a sinter funnel and drying under reduced pressure (90 Pa; 50°C), 572 mg of N-[6-chloro-lH-indazol-3-yl]-2-pyridinecarboxamide are obtained in the form of a white solid melting at 177°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 7.14 (dd, J = 9 and 2 Hz: IH); 7.60 (d, J = 2 Hz: IH); 7.73 (ddd, J = 6.5 - 5 and 1.5 Hz: IH); 7.95 (d, J = 9 Hz: IH); 8.12 (spht t, J = 7.5 and 2 Hz: IH); 8.21 (broad d, J = 7.5 Hz: IH); 8.79 (broad d, J = 5 Hz: IH); from 10.50 to 11.40 (broad unresolved peak: IH); from 12.30 to 13.40 (very broad unresolved peak: IH).
EXAMPLE 46
N-f6-(4-fluorophenvl)-l-[[2-(trimethvlsilvl)ethoxvl)methvll-lH-indazol-3-yllbutanamide
840 mg of 4-fluorophenylboronic acid, 1.24 g of caesium fluoride, 13.5 mg of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)-ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 25, in 30 cm" of dioxane. The mixture is then heated at about 102°C for 22 hours and is then allowed to return to room temperature. The reaction medium is taken up in 75 cm of ethyl acetate, filtered on a sinter funnel packed with Celite and then concentrated to dryness under reduced pressure (2 kPa; 50°C). The work-up and the purification are performed by analogy with Example 41. 580 mg of N-[6-(4-fluorophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are thus obtained in the form of a yellow oil.

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.09 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.97 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 3.56 (t, J = 8 Hz: 2H); 5.73 (s: 2H); 7.35 (t, J = 9 Hz: 2H); 7.44 (broad dd, J = 9 and 1.5 Hz: IH); 7.82 (dd, J = 9 and 5.5 Hz: 2H); 7.92 (d, J = 9 Hz: IH); 7.94 (broad s: IH); 10.48 (unresolved peak: IH).
EI m/z = 427 M*"
m/z = 310 [M - OCH2CH2Si(CH3)3]
m/z = 299 [M - CsHnOSi]'
N-[6-(4-fluorophenvl)-lH-iDdazol-3-vllbutaDamide
8.1 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 580 mg of N-[6-(4-fluorophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of tetrahydrofuran, and the reaction medium is heated at about 66°C for 22 hours. The heating is then stopped, 75 cm of ethyl acetate are added and the resulting mixture is washed with 50 cm' of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm' of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (40/60 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 10 cm of diisopropyl ether, filtered and washed successively with 5 cm of diisopropyl ether and 2x3 cm of ethyl acetate; after drying (90 Pa; 50°C), 250 mg of N-[6-(4-fluorophenyl)-lH-indazol-3-yl]butanamide are thus obtained in the form of a white product melting at 232°C.

H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 7.30 (d, J = 9 Hz: IH); 7.32 (t, J = 9 Hz: 2H); 7.61 (broad s: IH); 7.78 (dd, J = 9 and 6 Hz: 2H); 7.87 (d, J = 9 Hz: IH); 10.33 (unresolved peak: IH); 12.70 (unresolved peak: IH).
EXAMPLE 47
N-r6-fa.l-dimethvlethvnphenvl1-14r2-(triniethvIsilvnethoxv1methvl]-lH-indazol-3-vl1butanamide:
840 mg of 4-tert-butylphenylboronic acid, 1.24 g of caesium fluoride, 13.5 rag of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)-ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 25, in 30 cm of dioxane. The mixture is heated at about 102°C for 21 hours and the temperature is then allowed to return to room temperature and the reaction medium is diluted with 75 cm of ethyl acetate, filtered through a sinter funnel packed with Celite and concentrated to dryness under reduced pressure (2 kPa; 50°C). The work-up and the purification are performed by analogy with Example 41. 1.13 g of N-[6-[4-(l,l-dimethylethyl)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-idazol-3-yl]butanamide are thus obtained in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.08 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.35 (s: 9H); 1.68 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 3.57 (t, J = 8 Hz: 2H); 5.72 (broad s: 2H); 7.44 (broad d, J = 9 Hz: IH); 7.53 (broad d, J = 8 Hz: 2H); 7.70 (broad d, J = 8 Hz: 2H); 7.89 (d, J - 9 Hz: IH); 7.91 (broad s: IH); 10.46 (unresolved peak: IH).
EI m/z = 465 M
m/z = 348 [M - OCH2CH2Si(CH3)3]
m/z = 337 [M-CftHnOSi]

N-f6-f4-(l,l-dimethvlethvI)pheDvI]-lH-indazol-3-vl]butaDamide
14.6 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1.13 g of N-[6-[4-(l,l-dimethylethyl)phenyl]-l-[[2-(trimethylsilyl)ethoxy]-methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of tetrahydrofuran. The reaction medium is heated at about 66°C for 22 hours, the heating is then stopped and 75 cm' of ethyl acetate are added, and the organic phase is washed with 75 cm of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm' of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered and concentrated to dryness imder reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 10 cm of diisopropyl ether, filtered off on a sinter funnel and washed successively with 10 cm of diisopropyl ether and then with 2>5 cm of ethyl acetate. After drying (90 Pa; 50°C), 320 mg of N-[6-[4-(l,l-dimethylethyl)phenyI]-lH-indazol-3-yl]butanamide are thus obtained in the form of a white product melting at 246°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.99 (t, J - 7.5 Hz: 3H); 1.36 (s: 9H); 1.70 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 7.36 (broad d, J = 9 Hz: IH); 7.52 (d, J = 8,5 Hz: 2H); 7.61 (broad s: IH); 7.66 (broad d, J = 8.5 Hz: 2H); 7.85 (d, J = 9 Hz: IH); 10.32 (unresolved peak: IH); 12.66 (unresolved peak: IH).
EXAMPLE 48
N-[6-bromo-7-amino-lH-indazol-3-vl]butaDamide
4.25g of ferrous sulphate heptahydrate dissolved in 25 cm of water are added dropwise to 510 mg of N-[6-bromo-7-nitro-lH-indazol-3-yl]butanamide, described in Example 29, in 20 cm' of ethanol cooled to about 5°C. The temperature rises to about 28°C, the mixture is left stirring for 30 minutes, 5.2 cm of 28% aqueous ammonia

are then added, the mixture is refluxed for 2 hours, a further 2x1.5 cm of 28 % aqueous ammonia are then added and the mixture is left stirring for a fiirther 10 minutes and filtered while hot through a sinter funnel packed with Celite. The precipitate is rinsed with 20 cm"' of methanol and the filtrate is concentrated to dryness under reduced pressure (2 kPa; 40°C). The residue is taken up in 50 cm of ethyl acetate and washed with 25 cm of saturated sodium hydrogen carbonate solution and then with 25 cm of saturated sodium chloride solution. The organic phase is separated out after settUng of the phases has taken place, dried over magnesiimi sulphate and concentrated under reduced pressure (2 kPa; 40°C). After drying (90 Pa; 50°C), 55 mg of N-[6-bromo-7-amino-lH-indazol-3-yl]butanamide are thus obtained in the form of a mauve-coloured solid.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.65 (mt: 2H); 2.35 (t, J = 7 Hz: 2H); 5.47 (broad s: 2H); 6.901 (d, J - 8.5 Hz: IH); 7.00 (d, J = 8.5 Hz: IH); 10.18 (broad s: IH); 12.38 (unresolved peak: IH).
EI mJz = 296 M
m/z = 226 [M - C4H60]'
EXAMPLE 49
N-f6-f4-(trifluoromethvl)pheDvl]-l-U2-(trimethvlsilvl)ethoxv1methvl]-lH-indazol-3-vllbutanamide:
775 mg of 4-trifluoromethylphenylboronic acid, 1.24 g of caesium fluoride, 13.5 mg of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)-ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 25, in 30 cm of dioxane. The mixture is then refluxed for 18 hours, the temperature is then allowed to return to room temperature and the reaction medium is diluted with 75 cm' of ethyl acetate, filtered through a sinter fimnel packed with Celite and concentrated to dryness under reduced pressure (2 kPa; 50°C). The work-up and the purification are

performed by analogy with Example 41. 1 g of N-[6-[4-(trifluoromethyl)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yI]butanamide is thus obtained in the form of a yellow oil in a purity of 95%.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): - 0.09 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.56 (t, J = 8 Hz: 2H); 5.75 (s: 2H); 7.52 (broad d, J = 8.5 Hz: IH); 7.88 (broad d, J = 8.5 Hz: 2H); 7.97 (d, J = 8.5 Hz: IH); 8.01 (broad d, J = 8.5 Hz: 2H); 8.07 (broad s: IH); 10.51 (unresolved peak: IH).
EI m/z = 477 M*'
m/z = 360 [M - OCH2CH2Si(CH3)3]*
m/z = 349 [M-CfiHuOSif
N-f6-f4-(trifluorometbvDphenvl]-lH-indazol-3-vl1butanamide:
12.6 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to a solution of 1 g of N-[6-[4-(trifluoromethyl)phenyl]-l-[(2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide in 30 cm" of tetrahydrofuran, and the mixture is heated at reflux for 18 hours. The reaction medium is diluted with 75 cm of ethyl acetate and the organic phase is washed successively with 2x50 cm of saturated sodium hydrogen carbonate solution and 2x50 cm of saturated sodium chloride solution. The organic phase is separated out after setthng of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 0.95 g of a brown solid. The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 0.60 g of cream-coloured crystals, which are taken up in 10 cm of diisopropyl ether, filtered off and dried under reduced pressure (90 Pa;

m/z = 295 [M-CfiHuOSif
N-f6-(4-methvlphenvl)-lH-iDdazol-3-vnbutaDainide
14.6 cm' of tetrabutylammonium fluoride as a IM solution in tetrahydrofliran are added to 1.1 g of N-[6-(4-methylphenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of tetrahydrofuran. The reaction medium is heated at about 66°C for 18 hours and the heating is then stopped. 75 cm of ethyl acetate are added to the reaction medium and the organic phase is washed with 2x50 cm of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 ixm; diameter 2.5 cm), eluting with an ethyl acetate/cyclohexane mixture (70/30 by volume). The fi-actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 10 cm' of diisopropyl ether, filtered off and washed successively with 10 cm of diisopropyl ether and then with 33 cm of ethyl acetate. After drying (90 Pa; 50°C), 500 mg of N-[6-(4-methylphenyl)-lH-indazol-3-yl]butanamide are obtained in the form of a white product melting at 210°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.37 (s: 3H); 2.40 (t, J = 7 Hz: 2H); 7.31 (d, J = 8 Hz: 2H); 7.35 (mt: IH); 7.59 (broad s: IH); 7.63 (d, J = 8 Hz: 2H); 7.85 (d, J = 9 Hz: IH); 10.32 (broad s: IH); 12.65 (unresolved peak: IH).
EXAMPLE 51
N-f6-bromo-l-f[2-(trimethvlsilvl)ethoxvlmethvn-lH-indazol-3-vllbutanamide:
A solution of 6 g of N-(6-bromo-lH-indazol-3-yl)butanamide, prepared in Example 24, in 50 cm of dimethylformamide, is added dropwise to a suspension of 1.1 g of

sodium hydride at 60% in oil in 20 cm of dimethylformamide and cooled to OC, followed by addition of 4.5 cm of a solution of 2-(trimethylsilyl)ethoxymethyl chloride in 10 cm of dimethylfomiamide at 10°C, and the reaction medium is allowed to return to room temperature. 100 cm of ethyl acetate are added to the reaction medium, followed by washing with 2x50 cm of water; the organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate and concentrated to dryness under reduced pressure (2 kPa; 45 °C) to give 6.9 g of solid. The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 /im; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate gradient (100/0 to 90/10 by volume). The fi-actions containing the expected product are concentrated to dryness to give 2.9 g of N-[6-bromo-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide in the form of an off-white solid.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.07 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.97 (t, J - 7.5 Hz: 3H); 1.67 (mt: 2H); 2.40 (t, J - 7 Hz: 2H); 3.53 (t, J -8 Hz: 2H); 5.67 (s: 2H); 7.29 (dd, J = 9 and 1.5 Hz: IH); 7.82 (d, J = 9 Hz: IH); 8.01 (d, J = 1.5 Hz: IH); 10.54 (unresolved peak: IH).
EI myz = 411 M
m/z = 294 [M - OCH2CH2Si(CH3)3]
m/z = 283 [M-CeHnOSir
N-f6-(3.5-dichlorophenvn-l-ff2-(trimethvlsilvDethoxv]methvl1-lH-indazol-3-vljbutanamide:
0.44 g of 3,5-dichlorophenylboronic acid, 0.64 g of sodium carbonate dissolved in 18 cm of water and 0.186 g of tetrakis(triphenylphosphine)palladium are added to 1 g of N-[6-bromo-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of dioxane, and the mixture is refluxed for 18 hours. The reaction medium is diluted with 75 cm of ethyl acetate and 50 cm of water and

the medium is then fiUered through a sinter funnel packed with Cehte and is concentrated to dryness under reduced pressure (2 kPa; 50°C). The work-up and the purification are performed by analogy with Example 41. 0.90 g of N-[6-(3,5-dichlorophenyl)-1 -[(2-(trimethylsilyl)ethoxy]methyl]-1 H-indazol-3-yl]butanamide is thus obtained in the form of a yellow wax.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.09 (s: 9H); 0.85 (t, J = 8 Hz: 2H); 0.99 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.58 (t, J = 8 Hz: 2H); 5.77 (s: 2H); 7.53 (dd, J = 8.5 and 1.5 Hz: IH); 7.66 (t, J = 2 Hz: IH); 7.87 (d, J = 2Hz: 2H); 7.95 (d, J = 8.5 Hz: IH); 8.14 (broad s: 1H);10.51 (unresolved peak: IH).
EI m/z = 477 M*'
m/z = 360 [M - OCH2CH2Si(CH3)3]
m/z = 349 [M - CeHuOSi]'
N-f6-(3,5-dichloropheDvl)-lH-indazol-3-vl]butanamide
11.2cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1 g of N-[6-(3,5-dichlorophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 20 cm' of tetrahydrofuran, the reaction medium is then heated at about 65°C for 18 hours and the heating is stopped to add 75 cm of ethyl acetate. The organic phase is washed with 2x50 cm' of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm' of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 50°C), 290 mg of N-[6-(3,5-dichlorophenyl)-lH-indazol-3-yljbutanamide are obtained in the form of a white product.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (broad t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 7.40 (broad d, J = 8.5 Hz: IH); 7.63 (t, J =

2 Hz: IH); 7.75 (broad s: IH); 7.81 (d, J - 2 Hz: 2H); 7.89 (d, J = 8.5 Hz: IH); 10.37 (unresolved peak: IH); from 12.70 to 12.95 (broad unresolved peak: IH).
EI m/z = 347 M*'
m/z = 277 [M - C4CH60]*-
EXAMPLE 52
N-f6-chloro-lH-indazoI-3-vll-3.,5-dichlorobenzamide
0.83 cm' of 3,5-dichlorobenzoyl chloride is added to 1 g of 6-chloro-lH-indazole-3-amine in 15 cm of pyridine, after cooling in an ice bath to about 3°C, and the mixture is then stirred for 10 minutes at this temperature and is allowed to return to room temperature over 18 hours. The reaction medium is then concentrated to dryness under reduced pressure (2 kPa; 50°C) and the residue is taken up in 25 cm of ethyl acetate and 25 cm of water. The precipitate formed is filtered off and, after drying (90 Pa; 50°C), 700 mg of N-[6-chloro-lH-indazol-3-yl]-3,5-dichloroben2amide are obtained in the form of a white solid melting at about 240°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 7.15 (dd, J - 8.5 and 2 Hz: IH); from 7.50 to 7.65 (mt: 2H); 7.72 (d, J = 8.5 Hz: IH); 7.79 (broad s: IH); 7.90 (d, J = 8.5 Hz: IH); 11.06 (broad s: IH).
EXAMPLE 53
N-f6-(4-chlorophenvl)-l-[f2-(trimethvlsilvl)ethoxv|methvll-lH-indazol-3-vUbutanamide:
512 mg of 4-chlorophenylboronic acid, 578 mg of potassium carbonate, and 167 mg of tetrakis(triphenyl)palladium are added to 900 mg of N-[6-bromo-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 51, in 40 cm' of dioxane. The mixture is then heated at about 104°C for 2 hours and the temperature is allowed to retum to about 19°C over 16 hours. The reaction medium is diluted with 75 cm of ethyl acetate, filtered through a sinter funnel packed

with Celite and concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in lOOcm of ethyl acetate and 50 cm of water. The organic phase is washed again with 25 cm of saturated aqueous sodium chloride solution and then separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and evaporated under reduced pressure (2 kPa;50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); 600 mg of N-[6-(4-chlorophenyl)-l-[[2-(trimethylsilyl)ethoxy3methyl]-lH-indazol-3-yl]butanamide are obtained in the form of a yellow wax.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.09 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.97 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 3.56 (t, J = 8 Hz: 2H); 5.73 (s: 2H); 7.46 (broad d, J = 9 Hz: IH); 7.58 (d, J = 8.5 Hz: 2H); 7.81 (d, J = 8.5 Hz: 2H); 7.93 (d, J = 9 Hz: IH); 7.98 (broad s: IH); 10.49 (unresolved peak: IH).
EI m/z = 443 M'
m/z = 326 [M - OCH2CH2Si(CH3)3]*
m/z = 315 [M - CeHisOSi]'-
N-[6-(4-chlorophenvl)-lH-indazol-3-vl1butanamide
9.5 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to a solution of 600 mg of N-[6-(4-chlorophenyl)-l-[[2-(trimethylsilyl)ethoxy]-methyl]-lH-indazol-3-yl]butanamide, prepared previously, in 20 cm' of tetrahydrofuran, the reaction medium is then heated at about 65°C for 18 hours and the heating is stopped to add 40 cm' of ethyl acetate. The organic phase is washed with 2x30 cm' of saturated aqueous sodium hydrogen carbonate solution and then with 30 cm' of saturated aqueous sodium chloride solution. The organic phase is

dried over magnesium sulphate, filtered and evaporated under reduced pressure (2kPa: 50°C). After drying (90 Pa; 50°C), 238 mg of N-[6-(4-chlorophenyl)-lH-indazol-3-yl]butanamide are obtained in the form of a beige-coloured powder.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.98 (broad t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 7.35 (broad d, J = 8.5 Hz: IH); 7.55 (d, J = 8.5 Hz: 2H); 7.64 (broad s: IH); 7.77 (d, J = 8.5 Hz: 2H); 7.88 (d, J = 8.5 Hz: IH); 10.34 (unresolved peak: IH).
EI m/z = 313 M*-
m/z = 243 [M-C4CH60]-
EXAMPLE 54
N-[6-chloro-lH-iDdazol-3-vl|benzeDepropanamide trifluoroacetate
0.88 cm' of hydrocinnamoyl chloride is added to 1 g of 6-chIoro-lH-indazole-3-amine in 15 cm' of pyridine, after cooling to about 5°C, and the mixture is then allowed to return to room temperature over 18 hours. The reaction medium is then concentrated to dryness under reduced pressure (2 kPa; 45°C) and then taken up in 25 cm' of ethyl acetate, 25 cm of water and 10 cm of tetrahydrofuran. The organic phase separated out after settling of the phases has taken place is washed with 25 cm of water and then with 25 cm' of saturated aqueous sodium chloride solution; after drying over magnesium sulphate, filtering and concentrating to dryness under reduced pressure (2 kPa; 50°C), the residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 15-40 /xm; diameter 4 cm), eluting with a dichloromethane/methanol mixture (97/3 by volume). The fi-actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The impure product obtained is repurified by HPLC (Hypurity; C\%, 5m column; length 50 mm, diameter 21 mm, eluent: acetonitrile/water gradient (5/95 to 95/5 by volume) containing 0.05% trifluoroacetic acid; flow rate 10 cm'/min). After concentrating the fi-actions containing the expected product, and

after drying (90 Pa; 50°C), 200 mg of N-[6-chloro-lH-indazol-3-yljbenzenepropanamide trifluoroacetate are obtained in the form of a white soHd melting at 224°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 2.73 (t, J = 7.5 Hz: 2H); 2.97 (t, J = 7.5 Hz: 2H); 7.06 (dd, J = 9 and 1.5 Hz: IH); from 7.15 to 7.40 (mt: 5H); 7.51 (d, J = 1.5 Hz: IH); 7.77 (d, J = 9 Hz: IH); 10.44 (broad s: IH).
EXAMPLE 55
N-[6-(4-ethvlphenvIVl-[[2-(trimethvlsilvnethoxv1inethvn-lH-indazol-3-vHbutanamide
612 mg of 4-ethylphenylboronic acid, 1.24 g of caesium fluoride, 13.5 mg of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)-ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 25, in 30 cm of dioxane, and the mixture is then refluxed for 16 hours. The reaction medium is diluted with 50 cm of ethyl acetate and 50 cm of water, filtered through a sinter funnel packed with Celite and the filtrate is concentrated to dryness under reduced pressure (2 kPa; 50°C). The work-up and the purification are performed by analogy with Example 41. The product, which is still impure, is repurified by HPLC (Hypurity; Cig, 5/xm column; length 50 mm, diameter 21 mm, eluent: acetonitrile/water containing 0.05% trifluoroacetic acid; flow rate 10 cm/min). After concentrating the fractions containing the expected product and drying (90 Pa; 45 °C), 240 mg of N-[6-(4-ethylphenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide are obtained in the form of a yellow oil. The product is used directly in the next step.
N-[f6-(4-ethvlphenvl)-lH-indazol-3-vI]|butanamide:
3.3 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to a solution of 240mg of N-[6-(4-ethylphenyl)-l-[[2-(trimethylsilyl)ethoxy]-

methyl]-lH-indazol-3-yl]butanamide, described previously, in 20 cm of tetrahydrofuran. The medium is then maintained at 67°C for 17 hours, and the resulting mixture is then allowed to return to room temperature and 50 cm of ethyl acetate are added. The organic phase is washed with 2x50 cm of saturated aqueous sodium hydrogen carbonate solution and with 2x50 cm' of water, separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 p.m; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). The residue is taken up in 10 cm of diisopropyl ether, filtered off on a sinter funnel and washed successively with 2 cm' of ethyl acetate and then with 10 cm of diisopropyl ether. After drying (90 Pa; 50°C), 80 mg of N-[6-(4-ethylphenyl)-lH-indazol-3-yljbutanamide are obtained in the form of a white solid melting at 210°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (broad t, J = 7.5 Hz: 3H); 1.24 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 2.67 (q, J = 7.5 Hz: 2H); fi-om 7.30 to 7.40 (mt: 3H); 7.59 (broad s: IH); 7.65 (broad d, J = 8 Hz: 2H); 7.84 (d, J = 9 Hz: IH); 10.31 (unresolved peak: IH); 12.65 (unresolved peak: IH).
EXAMPLE 56
N-r6-(4.4.5.5-tetramethvl[1.3,21dioxaborolan-2-vl)-l-rf2-(trimethvlsilvl)ethoxvlmethvl]-lH-indazol-3-vllbutanamide:
766 mg of bis(pinacolato)diborane, 917 mg of caesium fluoride, then 9.9 mg of palladium acetate and finally 23.6 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)diphenyl are added to 740 mg of N-[6-chloro-l-[[2-(trimethylsilyI)ethoxy]methyl]-lH-indazoI-3-yl)butanamide, described in Example 25, in 25 cm of dioxane. The medium is refluxed for 20 hours and is then allowed to return to room temperature and 50 cm' of ethyl acetate and 50 cm" of water are added.

After filtering the reaction medium through a sinter funnel packed with Celite, it is washed with 2x50 cm of water. The organic phase is dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a colunnn of silica gel (particle size 40-60 pirn; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 630 mg of N-[6-(4,4,5,5-tetramethyl[l,3,2]dioxaborolan-2-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.09 (s: 9H); 0.82 (t, J = 8 Hz: 2H); 0.96 (t, J = 7.5 Hz: 3H); 1.34 (s: 12H); 1.67 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 3.50 (t, J = 8 Hz: 2H); 5.71 (s: 2H); 7.39 (d, J = 8.5 Hz: IH); 7.83 (d, J = 8.5 Hz: IH); 7.97 (s: IH); 10.45 (unresolved peak: IH).
EI m/z = 459 M"
m/z = 342 [M - OCH2CH2Si(CH3)3]
m/z = 331 [M-CeHnOSif-
m/z =272 [342 - CAHSO]
N-f6-(4-pvridvl)-l-fr2-(trimethvlsilvl)ethoxvlmethvil-lH-indazol-3-yllbutanamide:
246 mg of 4-iodopyridine, 10 cm of water, 201 mg of sodium carbonate and 69 mg of tetrakis(triphenylphosphine)palladium are added to 320 mg of N-[6-(4,4,5,5-tetramethyl[l,3,2]dioxaborolan-2-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 20 cm of dioxane. The medium is refluxed for 20 hours, the mixture is then allowed to return to room temperature and 50 cm of ethyl acetate and 50 cm' of water are added. The combined organic phases are washed with 50 cm of distilled water and then with 50 cm of saturated aqueous

sodium chloride solution, and then dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 (im; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). 280 mg of N-[6-(4-pyridyl)-1 -[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are obtained in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, Sin ppm): -0.10 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.57 (t, J = 8 Hz: 2H); 5.76 (s: 2H); 7.57 (broad dd, J = 8.5 and 1 Hz: IH); 7.82 (broad d, J = 6 Hz: 2H); 7.98 (d, J = 8.5 Hz: IH); 8.16 (broad s: IH); 8.70 (broad d, J = 6 Hz: 2H); 10.52 (miresolved peak: IH).
EI m/z = 410 M-
m/z = 293 [M - OCH2CH2Si(CH3)3]
m/z = 282 [M - C6H,20Si]-
N-{6-(4-pvridvlVlH-indazol-3-vllbutaDamide:
4.1 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 280 mg of N-[6-(4-pyridyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 20 cm of tetrahydrofuran, the medium is maintained at 67°C for 17 hours and is then allowed to return to room temperature to add 50 cm of ethyl acetate and 50 cm of saturated aqueous sodium hydrogen carbonate solution. The organic phase is washed with 50 cm of saturated aqueous sodium chloride solution and then with 50 cm of water, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 /xm; diameter 2 cm), eluting

with ethyl acetate. The fractions containing the expected product are combined and concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 10 cm' of diisopropyl ether, filtered off on a sinter funnel and then washed successively with 5 cm of ethyl acetate and with 10 cm of diisopropyl ether. After drying (90 Pa; 50°C), 60 mg of N-[6-(4-pyridyl)-lH-indazol-3-yl]butanamide are obtained in the form of a white solid melting at 200°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.99 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 7.47 (broad dd, J = 9 and 1 Hz: IH); 7.78 (broad d, J = 6 Hz: 2H); 7.81 (broad s: IH); 7.93 (d, J = 9 Hz: IH); 8.67 (broad d, J = 6 Hz: 2H); 10.38 (unresolved peak: IH); 12.84 (broad s: IH).
EXAMPLE 57
N-(5-amiDO-lH-indazol-3-vl)butanamide:
20 g of iron sulphate heptahydrate dissolved in 50 cm of hot water are added to a solution of 2.05 g of N-[5-nitro-lH-indazol-3-yl]butanamide, described in Example 23, in 80 cm of ethanol; the mixture is stirred for 30 minutes at room temperature, 24 cm of 28% aqueous ammonia are added and the mixture is then refluxed for 2 hours, 10 cm of 28% aqueous ammonia are added and the mixture is stirred for a flirther 10 minutes. The precipitate is filtered off while hot, on a sinter funnel packed with Celite, rinsed with methanol until the filtrate is colourless, and concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 100 cm of ethyl acetate and is washed with 50 cm of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure. After drying (90 Pa; 50°C) 870 mg of N-(5-amino-lH-indazol-3-yl)butanamide are obtained in the form of a purple powder.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.34 (broad t, J = 7 Hz: 2H); 4.82 (unresolved peak: 2H); 6.70 (broad s:

IH); 6.77 (dd, J = 9 and 2 Hz: IH); 7.15 (d, J = 9Hz: IH); 9.92 (unresolved peak: IH); 12.13 (unresolved peak: IH).
EI m/z = 218 M-
m/z=148 [M-C4CH60f
m/z = 43 [CEit
EXAMPLE 58
N-[5-bromo-6-chloro-l-[f2-(trimethvlsilvI)ethoxv1methvn-lH-indazol-3-vllbutanamide
0.22 cm' of pyridine is added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 25, in 15 cm' of chloroform, followed by addition of 0.14 cm of bromine. The mixture is stirred for 24 hours at 20°C, followed by addition of 50 cm of dichloromethane and 50 cm of saturated aqueous sodium sulphate solution. After stirring for 10 minutes, the insoluble material is removed by filtration on a sinter funnel and the organic phase is washed with 50 cm of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by i/olume). The fractions containing the expected product are combined and evaporated inder reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 940 mg of N-[5-5romo-6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are jbtained in the form of a white sohd melting at 130°C.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.08 (s: 9H); 0.82 (t, J = I Hz: 2H); 0.95 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.40 (t, J = 7.5 Hz: 2H); 3.52 (t, J = 8 Hz: 2H); 5.66 (s: 2H); 8.13 (s: IH); 8.34 (s: IH); 10.67 (broad s: IH).

N-(5-bromo-6-chloro-lH-iDdazol-3-vl)butaDamide:
12.6 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 940 mg of N-[5-bromo-6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm' of tetrahydrofuran. The medium is then maintained at 67°C for 19 hours and is then allowed to return to room temperature and 50 cm of ethyl acetate are abided. The organic phase is washed with 2x50 cm of saturated aqueous sodium hydrogen carbonate solution and then with 50 cm of saturated aqueous sodium chloride solution, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 y.m; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 15 cm of diisopropyl ether, filtered off on a sinter funnel and washed successively with 5 cm' of ethyl acetate and then with 210 cm of diisopropyl ether. After drying (90 Pa; 50°C), 460 mg of N-(5-bromo-6-chloro-lH-indazol-3-yl)butanamide are obtained in the form of a white solid melting at 250°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.96 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 7.77 (s: IH); 8.29 (s: IH); 10.53 (unresolved peak: IH); from 12.50 to 13.20 (broad unresolved peak: IH).
EXAMPLE 59
N-(6-chloro-lH-indazol-3-vl)-2-thiophenecarboxamide:
0.64 cm of 2-thiophenecarbonyl chloride is added to 1 g of 6-chloro-lH-indazole-3-amine in 15 cm of pyridine, after cooling to about 6°C with an ice bath, the reaction medium is then allowed to return to room temperature over 17 hours and concentrated to dryness under reduced pressure (2 kPa; 45°C), and the residue is then taken up in 20 cm of ethyl acetate, 20 cm of water and 20 cm of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has

taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 45°C), and the residue is then purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 15-40 /xm; diameter 3 cm), eluting with a dichloromethane/methanol mixture (99/1 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); after drying (90 Pa; 50°C), 660 mg of N-(6-chloro-lH-indazol-3-yl)-2-thiophenecarboxamide are obtained in the form of a pale yellow sohd melting at 215°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 7.11 (dd, J = 9 and 2 Hz: IH); 7.25 (dd, J = 5 and 3.5 Hz: IH); 7.58 (dd, J = 2 and 0.5 Hz: IH); 7.81 (dd, J = 9 and 0.5 Hz: IH); 7.90 (dd, J = 5 and 1.5 Hz: IH); 8.14 (dd, J = 3.5 and 1.5 Hz: IH); 10.98 (unresolved peak: IH); 12.96 (unresolved peak: IH).
EXAMPLE 60
N-(6-cbloro-lH-indazol-3-vl)-2-methvlpropvlamide:
0.63 cm of isobutyryl chloride is added to 1 g of 6-chloro-lH-indazole-3-amine in 15 cm of pyridine, after cooling the medium to about 6°C, and the mixture is then allowed to return to room temperature over 19 hours and evaporated to dryness under reduced pressure (2 kPa; 45°C). The residue is taken up in 25 cm of ethyl acetate and 25 cm of water; the precipitate formed is filtered off on a sinter funnel and then rinsed with ethyl acetate. After drying (90 Pa; 50°C), 384 mg of N-(6-chloro-lH-indazol-3-yl)-2-methylpropylamide are obtained in the form of a white product melting at 238°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.17 (d, J = 7 Hz: 6H); 2.75 (mt: IH); 7.08 (dd, J = 9 and 1.5 Hz: IH); 7.52 (broad s: IH); 7.82 (d, J - 9 Hz: IH); 10.35 (broad s: IH); 12.76 (broad s: IH).
EXAMPLE 61
4-Chloro-N-f6-chloro-lH-iDdazol-3-vl)butaDamide:

0.67 cm of 4-chlorobutyryl chloride is added to 1 g of 6-chloro-lH-indazole-3-amine in 15 cm of pyridine, after cooling to about 6°C in an ice bath, and the mixture is then allowed to return to room temperature over 19 hours. The reaction medium is concentrated to dryness under reduced pressure (2 kPa; 45°C) and the residue is taken up in 25 cm of ethyl acetate and 25 cm' of water. The precipitate is filtered off and rinsed with 15 cm of ethyl acetate and 5 cm' of dichloromethane. The organic phase is dried over magnesium sulphate, fihered and then concentrated to dryness under reduced pressure (2 kPa; 45°C); after drying (90 Pa; 50°C), 343 mg of 4-chloro-N-(6-chloro-lH-indazol-3-yl)butanamide are obtained in the form of a pale yellow solid melting at 220°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 2.09 (mt: 2H); 2.58 (t, J = 7 Hz: 2H); 3.74 (t, J = 7 Hz: 2H); 7.08 (broad dd, J - 9 and 1.5 Hz: IH); 7.52 (broad d, J = 1.5 Hz: IH); 7.84 (d, J = 9 Hz: IH); 10.51 (broad s: IH); from 12.60 to 13.10 (broad unresolved peak: IH).
EXAMPLE 62
N-[5-phenvl-6-chloro-l-[[2-(trimethvlsilvI)ethoxv1methvl1-lH-indazol-3-vljbutanamide
821 mg of phenylboronic acid, 1.14 g of sodium carbonate in 30 cm"' of distilled water and finally 347 mg of tetrakis(triphenylphosphine)palladium are added to 2g of N-[5-bromo-6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butan-amide, described in Example 58, in 180 cm of dioxane. The mixture is refluxed for 90 minutes and is then allowed to return to 20°C to add 100 cm' of ethyl acetate and 100 cm' of distilled water. The organic phase is washed with 100 cm' of saturated aqueous sodium chloride solution and then separated out after settling of the phases has taken place and dried over magnesium sulphate. After filtration, the filtrate is concentrated to dryness under reduced pressure (2 kPa; 50°C) and the residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are

combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 2 g of N-[5-phenyl-6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are thus obtained in the form of a yellow oil.
'H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.05 (s: 9H); 0.85 (t, J = 8 Hz: 2H); 0.92 (t, J = 7.5 Hz: 3H); 1.63 (mt: 2H); 2.38 (t, J = 7.5 Hz: 2H); 3.56 (t, J = 8 Hz: 2H); 5.70 (s: 2H); from 7.30 to 7.55 (mt: 5H); 7.91 (s: IH); 7.99 (s: IH); 10.59 (broad s: IH).
EI m/z = 443 M*'
m/z = 326 [M - OCH2CH2Si(CH3)3]*
m/z = 315 [M-CeHuOSif
N-(5-phenvl-6-chloro-lH-indazol-3-vl)butanamide
8.8 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 650 mg of N-[5-phenyl-6-chloro-l-[[2-(trimethylsilyl]ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 25 cm' of tetrahydrofuran. The medium is maintained at 67°C for 20 hours and is then allowed to return to room temperature and 75 cm of ethyl acetate are added; the organic phase is washed with 75 cm of saturated aqueous sodium hydrogen carbonate solution and then with 2x75 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered and evaporated to dryness under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fi-actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 15 cm of diisopropyl ether, filtered off on a sinter funnel and washed successively with 10 cm' of diisopropyl ether and with 5 cm of ethyl acetate. After drying under reduced pressure (90 Pa; 50°C), 240 mg of

N-(5-phenyl-6-chloro-lH-indazol-3-yl)butanamide are obtained in the form of a white solid melting at 235°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.92 (t, J = 7.5 Hz: 3H); 1.63 (mt: 2H); 2.37 (t, J = 7 Hz: 2H); from 7.35 to 7.55 (mt: 5H); 7.66 (s: IH); 7.85 (s: IH); 10.47 (broad s: IH); 12.80 (unresolved peak: IH).
EXAMPLE 63
N-[5-bromo-6-f4-(phenvlmethoxv)pheDvl1-l-f[2-(triinethvlsilvl)ethoxv1methvl1-IH-indazol-S-vllbutanamide
0,84 cm of pyridine are added to 2.64 g of N-[6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, prepared in Example 32, in 50 cm of chloroform, followed by dropwise addition of 0.52 cm of bromine, followed by addition of a further 0.42 cm of pyridine and 0.26 cm of bromine. 50 cm' of methylene chloride and 100 cm of 10% sodium thiosulphate solution are added to the reaction medium; the organic phase is separated out after settling of the phases has taken place, washed successively with 50 cm of 10% sodium thiosulphate solution and with 50 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa; 50°C) to give 3.4 g of an oil, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (90/10 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 2.1 g of N-[5-bromo-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide in the form of a white powder melting at 140°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.09 (s: 9H); 0.81 (t. J = 8 Hz: 2H); 0.96 (t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.42 (broad t, J = 7 Hz: 2H); 3.53 (t, J = 8 Hz: 2H); 5.19 (s: 2H); 5.67 (s: 2H); 7.13 (d, J = 8.5 Hz: 2H); 7.37 (d, J =

8.5 Hz: 2H); 7.37 (mt: IH); 7.43 (broad t, J = 7.5 Hz: 2H); 7.51 (broad d, J = 7.5 Hz: 2H); 7.70 (s: IH); 8.26 (s: IH); 10.61 (unresolved peak: IH).
N-[5-bromo-6-f4-(phenvlniethoxv)pheDvl]-lH-indazol-3-vl]butanamide
20 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 2 g of N-[5-broino-6-[4-(phenylmethoxy)phenyl]-l-[[2-(triinethylsilyl)ethoxy]-methyI]-lH-indazol-3-yI]butanamide, described previously, in 60 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 75 cm of ethyl acetate are added and the organic phase is washed successively with 75 cm' of saturated sodium hydrogen carbonate solution and with 75 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2.7 kPa; 50°C) to give 2 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 50 cm of diisopropyl ether, filtered off, washed with 2x10 cm of diisopropyl ether and dried (90 Pa; 45°C) to give 500 mg of N-[5-bromo-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide in the form of a solid melting at 200°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 5.19 (s: 2H); 7.12 (d, J = 8.5 Hz: 2H); from 7.30 to 7.50 (mt: 6H); 7.53 (broad d, J = 7.5 Hz: 2H); 8.22 (s; IH); 10.50 (unresolved peak: IH); 12.83 (umesolved peak: IH).
N-f5-bromo-6-(4-bvdroxvphenvl)-lH-inda2ol-3-vllbutanamide
10 cm of trimethylsilyl iodide are added to 500 mg of N-[5-bromo-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yI]butanamide, prepared previously, and the mixture is refluxed for 4 hours. 25 cm of methanol are added and the reaction

medium is refluxed for 15 minutes and then concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 50 cm' of ethyl acetate and is washed with 250 cm of 10% sodium thiosulphate solution and then with 50 cm of water and 50 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure to give 1 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 10 cm of ethyl acetate, filtered off, washed with 2x5 cm of ethyl acetate and dried (90 Pa; 45°C) to give 130 mg of N-[5-bromo-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide melting above 260°C.
IR NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 6.85 (d, J - 8.5 Hz: 2H); 7.25 (d, J = 8.5 Hz: 2H); 7.34 (s: IH); 8.20 (s: IH); 9.61 (unresolved peak: IH); 10.48 (broad s: IH); 12.79 (unresolved peak: IH).
EXAMPLE 64
N-f6-(4-nitrophenvl)-l-[f2-(trimethvlsilvl)ethoxvjmethvll-lH-indazol-3-vllbutanamide:
790 mg of 4-bromonitrobenzene, 10 cm of water, 646 mg of sodium carbonate and 190 mg of tetrakis(triphenylphosphine)palladium are added to 1 g of N-[6-(4,4,5,5-tetramethyl[l,3,2]dioxaborolan-2-yl)-l-[[2-(trimethyIsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, prepared as described in Example 56, in 50 cm of dioxane. The reaction medium is then refluxed for 18 hours and is allowed to return to room temperature, 75 cm' of ethyl acetate are then added and the organic phase is washed with 2x50 cm' of distilled water and then with 50 cm of saturated aqueous sodium chloride solution. After drying over magnesium sulphate, filtering and concentrating to dryness under reduced pressure (2 kPa; 45°C), the residue is purified by

chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 /im; diameter 2.5 cm), eluting with a cyclohexane, ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). 650 mg of N-[6-(4-nitrophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are obtained in the form ofa yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): -0.10 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.97 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.57 (t, J = 8 Hz: 2H); 5.77 (s: 2H); 7.56 (broad dd, J = 9 and 1.5 Hz: IH); 7.99 (d, J = 9 Hz: IH); 8.09 (d, J = 9 Hz: 2H); 8.15 (broad s: IH); 8.37 (d, J = 9 Hz: 2H); 10.56 (unresolved peak: IH).
EI m/z = 454 M'
m/z = 337 [M - OCH2CH2Si(CH3)3]
m/z = 326 [M - CeHnOSi]*'
m/z = 73 [Si(CH3)3]
N-(f6-(4-nitrophenvl)-lH-indazol-3-vll1butanamide:
8.6 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 650 mg of N-[6-(4-nitrophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of tetrahydrofuran. The medium is maintained at 67°C for 18 hours and is then allowed to return to room temperature to add 75 cm' of ethyl acetate and 75 cm of saturated aqueous sodium hydrogen carbonate solution. The organic phase is washed with 50 cm of saturated aqueous sodium chloride solution and then with 50 cm of water, separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 2 cm), eluting with a cyclohexane/ethyl acetate

mixture (50/50 by volume). The fractions containing the expected product are combined and concentrated to dryness under reduced pressure (2 kPa; 50°C); the residue is taken up in 10 cm of ethyl acetate, filtered off on a sinter funnel and then washed successively with 5 cm of ethyl acetate and with 10 cm of diisopropyl ether. After drying (90 Pa; 50°C), 280 mg of N-[6-(4-nitrophenyl)-lH-indazol-3-yljbutanamide are obtained in the form of yellow crystals melting at 250° C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 7.46 (dd, J = 8.5 and 1.5 Hz: IH); 7.79 (broad s: IH); 7.94 (d, J = 8.5 Hz: IH); 8.05 (broad d, J = 9 Hz: 2H); 8.34 (broad d, J = 9 Hz: 2H); 10.42 (unresolved peak: IH); 12.87 (broad s: IH).
EXAMPLE 65
N-f6-(2-chlorophenvl)-l-[(2-(trimethvlsilvl)ethoxy]methvl]-lH-iDdazol-3-vllbutanamide:
853 mg of 2-chlorophenylboronic acid, 30 cm of water, 964 mg of sodium carbonate
and 252 mg of tetrakis(triphenylphosphine)palladium are added to 1 g of N-[6-
bromo-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, prepared as
described in Example 51, in 60 cm of dioxane. The reaction medium is then refluxed
for 18 hours and filtered through a sinter funnel packed with Celite, and then
concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken
up m 70 cm of ethyl acetate and the organic phase is washed with 2x30 cm of
distilled water and then with 30 cm of saturated aqueous sodium chloride solution.
The organic phase is separated out after settling of the phases has taken place, dried
over magnesium sulphate, filtered and concentrated to dryness under reduced
pressure (2 kPa; 45°C). The residue obtained is purified by chromatography under an
argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter
2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (90/10 by volume). The
fractions containing the expected product are combined and evaporated under reduced
pressure (2 kPa; 50°C); Ig of N-[6-(2-chlorophenyl)-l-[[2-

(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are obtained in the form of a yellow wax.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.08 (s: 9H); 0.84 (t, J = 8 Hz: 2H); 0.99 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.43 (t, J = 7 Hz: 2H); 3.57 (t, J = 8 Hz: 2H); 5.71 (s: 2H); 7.19 (dd, J = 8.5 and 2 Hz: IH); from 7.40 to 7.70 (mt: 4H); 7.74 (broad s: IH); 7.90 (d, J = 8.5 Hz: IH); 10.51 (unresolved peak: IH).
EI m/z = 443 M*"
m/z = 326 [M-OCH2CH2Si(CH3)3f
m/z = 315 [M-C6Hi20Sir
N-[6-(2-chloropheDvn-lH-indazol-3-vnbutanamide:
2.9 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 900 mg of N-[6-(2-chlorophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 40 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours. The reaction medium is diluted with 50 cm of ethyl acetate and the organic phase is washed successively with 2x30 cm of saturated sodium hydrogen carbonate solution, with 30 cm' of water and with 30 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (90/10 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); 120 mg of N-[6-(2-chlorophenyl)-lH-indazol-3-yl]butanamide are obtained in the form of a beige-coloured foam.

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 7.09 (broad d, J = 8.5 Hz: IH); from 7.40 to 7.65 (mt: 5H); 7.83 (d, J = 8.5 Hz: IH); 10.36 (broad s: IH); 12.74 (broad s: IH).
EIm/z = 313 M-
tn/z = 243 [M-C4CH60r-
EXAMPLE 66
N-[6-f3-(phenvlmethoxv)pheDvn-l-tf2-(trimetbvlsilvnethoxv)inethvl1-lH-ipdazol-3-vnbutanamide
?30 mg of 3-benzyloxyphenylboronic acid, 1.24 g of caesium fluoride, 31.5 mg of
Z-dicyclohexylphosphino-2'-(N,N-dimethylamino)diphenyl and 13.5 mg of palladium
icetate are successively added to 1 g of N-[6-chloro-l-[[2-
'trimethylsilyl)ethoxy)methyl]-lH-indazol-3-yl)butanamide, prepared in Example 25,
md the mixture is refluxed for 18 hours. The reaction medium is filtered through a
;inter funnel packed with Celite and 75 cm of ethyl acetate are added to the filtrate.
The organic phase is washed with 25 cm' of saturated sodium chloride solution,
;eparated out after settling of the phases has taken place, dried over magnesium
.ulphate, fihered and concentrated to dryness under reduced pressure (2 kPa; 50°C).
The crude product obtained is purified by chromatography under an argon pressure of
10 kPa, on a column of sihca gel (particle size 40-60 /xm; diameter 2.5 cm), eluting
vith a cyclohexane/ethyl acetate gradient (90/10 to 75/25 by volume). The fractions
ontaining the expected product are combined and evaporated under reduced pressure
2kPa; 50°C); 1.1 g of N-[6-[3-(phenylmethoxy)phenyl]-l-[[2-
trimethylsilyl)ethoxy)methyl]-lH-indazol-3-yl]butanamide are obtained in the form if an oil in a purity of 80%.
H NMR spectrum (300 MHz, (CD3)2SO-d6, Sin ppm): -0.08 (s: 9H); 0.85 (t, J = Hz: 2H); 0.99 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.58 (t, J = Hz: 2H); 5.23 (s: 2H); 5.75 (s: 2H); 7.08 (broad dd, J = 8.5 and 2 Hz: IH); from

7.30 to 7.50 (mt: 7H); 7.53 (broad d, J = 7.5 Hz: 2H); 7.92 (d, J = 9 Hz: IH); 7.96 (broad s: IH); 10.48 (unresolved peak: IH).
DCI in/z = 516 [M+Hf
N-[6-[3-(phenvlinethoxv)phenvl]-lH-indazol-3-vl1butanamide
2.9 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1 g of N-[6-[3-(plienylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]-methyl]-lH-indazol-3-yl]butanamide, described previously, in 20 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours. The reaction medium is diluted with 100 cm of ethyl acetate and the organic phase is washed successively with 50 cm' of saturated sodium hydrogen carbonate solution, with 2x50 cm of water and with 50 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate gradient (70/30 to 40/60 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2kPa; 50°C); 0.43 g of N-[6-[3-(phenylmethoxy)phenyl]-lH-indazol-3-yljbutanamide is obtained in the form of a white powder.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 5.22 (s: 2H); 7.05 (broad dd, J = 8.5 and 2 Hz: IH); from 7.25 to 7.50 (mt: 7H); 7.52 (broad d, J = 7.5 Hz: 2H); 7.63 (broad s: IH); 7.35 (d, J = 9 Hz: IrH); 10.33 (unresolved peak: IH); 12.68 (unresolved peak: IH).
EI m/z-385 M'
m/z = 315 [M-C4CH6O]'
N-[6-(3-bvdroxvphenvl>-lH-indazol-3-vl]butanamide

10 cm of trimethylsilyl iodide are added to 0.4 g of N-[6-[3-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide, described previously, and the mixture is refluxed for 3 hours. 50 cm of methanol are then added and refluxing is continued for 15 minutes. The reaction medium is concentrated to dryness under reduced pressure (2 kPa; 50°C), 50 cm of ethyl acetate are added and the organic phase is washed with 350 cm of 10% sodium thiosulphate solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); 0.18 g of N-[6-(3-hydroxyphenyl)-lH-indazol-3-yljbutanamide is obtained in the form of a grey powder melting at 188°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (broad t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 6.80 (broad dd, J = 8 and 2 Hz: IH); 7.08 (mt: IH); 7.13 (broad d, J = 8 Hz: IH); from 7.25 to 7.35 (mt: 2H); 7.55 (broad s: IH); 7.84 (d, J = 8.5 Hz: IH); 9.55 (broad s: IH); 10.34 (unresolved peak: IH); 12.67 (unresolved peak: IH).
EXAMPLE 67
N-16-chloro-5-(4-pvridvl)-l-[f2-(trimethvisilvnethoxv]methvl]-lH-indazol-3-vHbutanamide
415 mg of 4-pyridylboronic acid are added to 1 g of N-[[5-bromo-6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]]butanamide, described previously, in Example 58, in 90 cm" of dioxane, followed by addition of a solution of 570 mg of sodium carbonate in 18cm of water and finally 173 mg of tetrakis-(triphenylphosphine)palladium, and the mixture is refluxed for 18 hours. The reaction medium is diluted with 75 cm of ethyl acetate and 50 cm of water. The organic phase is separated out after settling of the phases has taken place, washed with 50 cm

of water and 50 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 jLtm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixttire (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); 770 mg of N-[6-chloro-5-(4-pyridyl)-l-[[2-(trimethyIsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are obtained in the form of white crystals.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.05 (s: 9H); 0.85 (t, J = 8 Hz: 2H); 0.93 (t, J = 7.5 Hz: 3H); 1.63 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 3.55 (t, J = 8 Hz: 2H); 5.71 (s: 2H); 7.48 (broad d, J = 6 Hz: 2H); 7.98 (s: IH); 8.08 (s: IH); 8.69 (broad d, J - 6 Hz: 2H); 10.67 (unresolved peak: IH).
ES m/z = 445 [M+H]*
N-f6-chloro-5-(4-pvridvl)-lH-indazol-3-vl1butanamide
10.4 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 770 mg of N-[6-chloro-5-(4-pyridyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours. The reaction medium is diluted with 75 cm of ethyl acetate and 75 cm' of saturated sodium hydrogen carbonate solution. The organic phase is separated out after settling of the phases has taken place, washed with 50 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with ethyl acetate. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 20 cm of ethyl acetate, filtered off, washed with 5cm of ethyl acetate and 20 cm diethyl ether, and dried under reduced pressure (90 Pa; 45°C) to give 320 mg of N-[6-chloro-5-(4-

pyridyl)-lH-indazol-3-yl]butanamide in the form of white ciA'stals melting above 260°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6,5 in ppm): 0.93 (t, J = 7.5 Hz: 3H); 1.63 (mt: 2H); 2.38 (t, J = 7 Hz: 2H); 7.47 (dd, J = 5 and 1.5 Hz: 2H); 7.71 (s: IH); 7.94 (s: IH); 8.67 (dd, J = 5 and 1.5 Hz: 2H); 10.53 (unresolved peak: IH); 12.90 (broad s: IH).
EXAMPLE 68
N-r6-chloro-5-r3-furvn-l-ff2-(trimethvlsilvnethoxv]methvl1-lH-indazoI-3-vHbutanamide
377 mg of 3-furyIboronic acid are added to 1 g of N-[5-bromo-6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yI]butanamide, described previously, in
■J
Example 58, in 90 cm of dioxane, followed by addition of 570 mg of sodium carbonate in 18 cm' of water and finally 173 mg of tetrakis(triphenylphosphine)palladium, and the mixture is refluxed for 18 hours. The reaction medium is diluted with 75 cm' of ethyl acetate and 50 cm of water. The organic phase is separated out after settling of the phases has taken place, washed with 50 cm of water and 50 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (85/15 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); 800 mg of N-[6-chloro-5-(3-furyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are obtained in the form of a colourless oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, Sin ppm): -0.06 (s: 9H); 0.84 (t, J = 8 Hz: 2H); 0.96 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.41 (broad t, J = 7 Hz: 2H); 3.55

(t, J - 8 Hz: 2H); 5.69 (s: 2H); 6.79 (mt: IH); 7.80 (t, J = 2 Hz: IH); from 7.95 to 8.05 (mt: 3H); 10.59 (unresolved peak: IH).
ES m/z = 456 [M+Na]
m/z = 434 [M+H]*
m/z = 316 [M - OCH2CH2Si(CH3)3]*
N-f6-chloro-5-(3-furvl)-lH-indazol-3-vl]butanamide
11 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 800 mg of N-[6-chloro-5-(3-furyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours. The reaction medium is diluted with 75 cm of ethyl acetate and 50 cm' of saturated sodium hydrogen carbonate solution. The organic phase is separated out after settling of the phases has taken place, washed with 50 cm' of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 25 cm of diethyl ether, filtered off, washed with 210 cm of diethyl ether and dried under reduced pressure (90 Pa; 45°C) to give 220 mg of N-[6-chloro-5-(3-furyl)-lH-indazol-3-yl]butanamide in the form of white crystals melting at 250°C.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.65 (mt: 2H); 2.39 (broad t. J = 7 Hz: 2H); 6.76 (broad s: IH); 7.64 (s: IH); 7.78 (t, J = 1.5 Hz: IH); 7.95 (mt: 2H); 10.94 (unresolved peak: IH); from 12.50 to 13.00 (broad unresolved peak: IH).
EXAMPLE 69

l-bronio-2-chloro-4-(pheDvImetboxv)beDzene:
2 g of 4-bromo-3-chIorophenol dissolved in 20 cm of dimethylformamide are added to 480 mg of sodium hydride at 60% in oil, in 10 cm' of dimethylformamide, followed by addition of a solution of 1.38 cm of benzyl chloride dissolved in 5 cm of dimethylformamide. The reaction medium is concentrated under reduced pressure
■a
and taken up in 100 cm of ethyl acetate. The organic phase is washed successively with 2x50 cm of water and with 50 cm of saturated sodium chloride solution, separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 3 g of crude product, which is purified by chromatography under an argon pressure of 50kPa, on a column of silica gel (particle size 40-60 fim; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (90/10 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). 2.63 g of l-bromo-2-chloro-4-(phenylmethoxy)benzene are obtained in the form of an orange-coloured oil which crystallizes.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 5.16 (s: 2H); 6.99 (dd, J = 9 and 3 Hz: IH); 7.34 (d, J = 3 Hz: IH); from 7.35 to 7.55 (mt: 5H); 7.65 (d, J = 9 Hz: IH).
EI m/z = 296 M"
N-[6-[2-chloro-4-(phenvlmethoxv)phenvl]-l-[[2-(trimethvlsilvl)ethoxv]methvll-lH-indazol-3-vl]butanamide:
1.95 g of l-bromo-2-chloro-4-(phenylmethoxy)benzene, described previously, 1.11 g of sodium carbonate in 36 cm of water and 347 mg of tetrakis(triphenylphosphine)palladium are added to 2 g of N-[6-(4,4,5,5-tetramethyl[l,3,2]dioxaborolan-2-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously in Example 56, in 180 cm of dioxane. The medium is then refluxed for 2 hours and the mixture is allowed to return to room temperature, 200 cm of ethyl acetate and 100 cm of water are added and the

resulting mixture is filtered through a sinter funnel packed with Celite. The combined organic phases are washed with 100 cm of distilled water and then with 100 cm of saturated aqueous sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 45 °C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (85/15 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). 1.34 g of N-[6-[2-chloro-4-(phenyhnethoxy)phenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are obtained in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): -0.08 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.55 (t, J = 8 Hz: 2H); 5.23 (s: 2H); 5.70 (s: 2H); 7.13 (dd, J - 8.5 and 2.5 Hz: IH); 7.15 (broad d, J = 8.5 Hz: IH); 7.30 (d, J - 2.5 Hz: IH); fi-om 7.35 to 7.55 (mt: 6H); 7.69 (broad s: IH); 7.86 (d, J = 8.5 Hz: IH); 10.51 (unresolved peak: IH).
EI m/z - 549 M~
m/z = 432 [M - OCH2CH2Si(CH3)3]
m/z = 421 [M-CftHnOSif
N-f6-[2-chloro-4-(phenvlmethoxv)phenvl]-lH-indazol-3-vllbutanamide:
14.2 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are
added to 1.3 g of N-[6-[2-chloro-4-(phenylmethoxy)phenyl]-l-[[2-
(trimethylsiIyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 60 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 75 cm of ethyl acetate are added and the organic phase is washed successively with 50 cm of saturated sodium hvdroen carbonate solution and with 50 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to

purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 10 cm' of diisopropyl ether, filtered off, washed with 2x10 cm of diisopropyl ether and dried under reduced pressure (90 Pa; 45°C) to give 600 mg of N-[6-[2-chloro-4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide in the form of white crystals.
1H NMR spectrum (400 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 5.22 (s: 2H); 7.06 (broad d, J = 8.5 Hz: IH); 7.11 (dd, J = 8.5 and 2.5 Hz: IH); 7.27 (d, J = 2.5 Hz: IH); from 7.35 to 7.55 (mt: 7H); 7.79 (d, J = 8.5 Hz: IH); 10.35 (unresolved peak: IH); 12.69 (unresolved peak: IH).
EI m/z = 419 M*
m/z = 349 [M - CACHGO]
N-[6-(2-chloro-4-hvdro\vphenvl)-lH-indazol-3-vllbutanamide:
15 cm of trimethylsilyl iodide are added to 0.6 g of N-[6-[2-chloro-4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide, described previously, and the mixture is refluxed for 4 hours, followed by addition of 50 cm of methanol, and refluxing is continued for 15 minutes. The reaction medium is concentrated to dryness under reduced pressure (2 kPa; 50°C), 100 cm of ethyl acetate are added and the organic phase is washed with 2x50 cm' of 10% sodium thiosulphate solution and then with 50 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness. The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are

combined and evaporated under reduced pressure (2 kPa; 50°Cj; 0.24 g of N-[6-(2-chloro-4-hydroxyphenyl)-lH-indazol-3-yl]butanamide is obtained in the form of a white foam.
1H NMR spectrum (400 MHz, (CD3)2SO-d6, 5 in ppm): 0.90 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 6.86 (dd, J = 8.5 and 2 Hz: IH); 6.97 (d, J = 2 Hz: IH); 7.05 (broad d, J = 9 Hz: IH); 7.30 (d, J = 8.5 Hz: IH); 7.37 (s: IH); 7.78 (d, J = 9 Hz: IH); 10.02 (unresolved peak: IH); 10.33 (broad s: IH); 12.65 (broad s: IH).
EI m/z = 329 IvT'
m/z = 259 [M - C4CH60]*-
EXAMPLE 70
N-f5,6-dibroino-l-f[2-(trimethvlsilvl)ethoxv1niethvl1-lH-indazol-3-vHbutanamide:
3.3 cm of pyridine are added to 4g of N-[6-bromo-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously in Example 51, in 80 cm of chloroform, followed by dropwise addition of 2 cm of bromine, and the mixture is then left stirring for 18 hours. The reaction medium is diluted with 100 cm' of methylene chloride and the organic phase is washed with 2x100 cm of 10% sodium thiosulphate solution and then with 75 cm' of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 ptm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C), then dried (90 Pa; 45°C) to give 4.24 g of N-[5,6-dibromo-l-[[2-(trimethylsiIyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide in the form of a yellow solid melting at 134°C.

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.08 (s: 9H); 0.81 (t, J = 8 Hz: 2H); 0.95 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 3.52 (t, J = 8 Hz: 2H); 5.66 (s: 2H); 8.26 (s: IH); 8.33 (s: IH); 10.66 (unresolved peak: IH).
N-[5,6-dibromo-lH-indazol-3-vl]butaDamide:
12.2 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1 g of N-[5,6-dibromo-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide, described previously, in 60 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 75 cm of ethyl acetate are added and the organic phase is washed successively with 100 cm of saturated sodium hydrogen carbonate solution and then with 75 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 1.6 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 20 cm of diisopropyl ether, filtered off, washed with 2x10 cm of diisopropyl ether and dried (90 Pa; 45°C) to give 460 mg of N-[5,6-dibromo-lH-indazol-3-yl]butanamide in the form of bluish crystals melting at 250°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 7.91 (s: IH); 8.28 (s: IH); 10.55 (unresolved peak: IH); from 12.70 to 13.20 (broad unresolved peak: IH).
EXAMPLE 71
N-[6-chloro-lH-indazol-3-vl]-2.2.3,3i4,4,4-heptafluorobutanamide:
0.60 cm of heptafluorobutyryl chloride is added to 1 g of 6-chloro-lH-indazole-3-amine in 10 cm"' of pyridine, after cooling the medium to about 6°C, the mixture is

then allowed to return to room temperature over 19 hours and is evaporated to dryness under reduced pressure (2 kPa; 45°C). The residue is taken up in 40 cm of ethyl acetate and 20 cm of water; the precipitate formed is filtered off on a sinter funnel and then rinsed with 2x10 cm of methylene chloride and purified by chromatography under an argon pressure of 50 kPa, on a column of siUca gel (particle size 40-60 m; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 0.77 g of N-[6-chloro-lH-indazol-3-yl]-2,2,3,3,4,4,4-heptafluorobutanamide in cottony form.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 7.19 (broad dd, J = 9 and 1.5 Hz: IH); 7.62 (d, J = 9 Hz: IH); 7.64 (broad s: IH); 12.09 (unresolved peak: IH); 13.25 (unresolved peak: IH).
EI m/z = 363 M*'
ni/z=194 [M - CFjCFsCFa]
m/z = 166 [M - COCF2CF2CF3]
EXAMPLE 72
N-[5-(4-fluorophenvl)-6-chloro-l-[[2-(trimethvIsilvnethoxv]methvl]-lH-indazol-3-vl]butanamide
470 mg of 4-fluorophenylboronic acid, 593 mg of sodium carbonate in 40 cm of water and 155 mg of tetrakis(triphenylphosphine)palladium are added to 1 g of N-[5-bromo-6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 58, in 40 cm of dioxane. The mixture is refluxed for 18 hours and the reaction medium is filtered through a sinter funnel packed with Celite. 60 cm of ethyl acetate and 50 cm of distilled water are added to the filtrate. The organic phase is washed with 2>;20cm' of saturated aqueous sodium chloride solution and then separated out after settling of the phases has taken place and dried over magnesium sulphate. After filtration, the filtrate is concentrated to dryness under

reduced pressure (2 kPa; 50°C) and the residue is purified by chromatography under an argon pressure of 50kPa, on a column of sihca gel (particle size 40-60 /im; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (90/10 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 0.75 g of N-[5-(4-fluorophenyl)-6-chloro-l-[(2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide is thus obtained in the form of a yellow wax.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.05 (s: 9H); 0.85 (t, J = 8 Hz: 2H); 0.93 (t, J = 7.5 Hz: 3H); 1.63 (mt: 2H); 2.38 (t, J = 7 Hz: 2H); 3.55 (t, J = 8 Hz: 2H); 5.70 (s: 2H); 7.31 (broad t, J = 9 Hz: 2H); 7.46 (dd, J = 9 and 6 Hz: 2H); 7.91 (s: IH); 8.00 (s: IH); 10.60 (unresolved peak: IH).
EI m/z = 461 M-
m/z = 344 [M - OCH2CH2Si(CH3)3]
m/z = 333 [M - CeHiaOSi]*'
N-[6-chloro-5-(4-fluorophenvl)-lH-indazol-3-vl1butanamide
9.5 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 0.73 g of N-[6-chloro-5-(4-fluorophenyl)-l-[[2-(trimethylsilyl)ethoxy]-methyl]-lH-indazol-3-yl]butanamide, described previously, in 20 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 30 cm" of ethyl acetate are added and the organic phase is washed successively with 220 cm of saturated sodium hydrogen carbonate solution and with 20 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C); the crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 ptm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and

evaporated under reduced pressure (2 kPa; 50°C) and dried (90 Pa; 45°C) to give 200 mg of N-[6-chloro-(4-fluorophenyl)-lH-indazol-3-yl]butanamide in the form of a cream-coloured powder.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, S in ppm): 0.93 (t, J = 7.5 Hz: 3H); 1.63 (mt: 2H); 2.38 (t, J = 7 Hz: 2H); 7.30 (broad t, J = 9 Hz: 2H); 7.45 (broad dd, J = 9 and 6 Hz: 2H); 7.66 (s: IH); 7.85 (s: IH); 10.46 (unresolved peak: IH); 12.80 (unresolved peak: IH).
EI m/z = 331 M*-
m/z = 261 [M-C4CH60r
EXAMPLE 73
N-[[6-(4-amiDopheDvl)-lH-indazol-3-vl]]butanamide:
856 mg of zinc powder are added to 0.85 g of N-[6-(4-nitrophenyl)-lH-indazol-3-yl]butanamide, described in Example 64, in 50 cm of acetic acid, followed, one hour later, by addition of a further 856 mg of zinc, and the mixture is stirred for 1 hour at room temperature. The reaction medium is fihered through a sinter funnel packed with Celite and the filtrate is concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 100 cm of tetrahydrofuran and 100 cm of ethyl acetate and the organic phase is washed successively with 100 cm of saturated sodium hydrogen carbonate solution and with 100 cm' of saturated sodium chloride solution, then dried over magnesium sulphate, filtered and concentrated to dryness to give 500 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 4.5 cm), eluting with ethyl acetate. The fractions containing the expected product are combined and the solid is triturated in 20 cm of diethyl ether, filtered off, washed with 2x5 cm of diethyl ether and then dried (90 Pa; 45°C) to give 200 mg of N-[6-(4-aminophenyl)-lH-indazol-3-yl]butanamide in the form of yellow crystals melting at 230°C.

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.98 (broad t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.39 (t, J = 7Hz: 2H); 5.24 (broad s: 2H); 6.68 (broad d, J = 8 Hz: 2H); 7.27 (broad d, J = 8.5 Hz: IH); 7.42 (broad d, J = 8 Hz: 2H); 7.45 (broad s: IH); 7.76 (d, J = 8.5 Hz: IH); 10.26 (unresolved peak: IH); 12.49 (broad s: IH).
EXAMPLE 74
N-[6-f4-(dimethvlamino)phenvl1-l-F[2-(trimethvlsilvl)ethoxvlmethvn-lH-indazol-3-vl]butanamide:
785 mg of 4-bromo-N,N-dimethylaniline, 646 mg of sodium carbonate, 10 cm of water and 196 mg of tetrakis(triphenylphosphine)palladium are added to 1 g of N-[6-(4,4,5,5-tetramethyl[l,3,2]dioxaborolan-2-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 56, in 50 cm of dioxane. The medium is then refluxed for 18 hours, the resulting mixture is then allowed to return to room temperature and 75 cm of ethyl acetate and 75 cm of water are added. The organic phase is dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 45°C) to give 1.6 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fi"actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). 170 mg of N-[6-[4-(dimethylamino)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide are obtained in the form of a yellow oil.
H NMR spectrum (400 MHz, (CD3)2SO-d6, 5 in ppm): -0.08 (s: 9H); 0.84 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 2.98 (s: 6H); 3.57 (t, J = 8 Hz: 2H); 5.71 (s: 2H); 6.85 (d, J = 9 Hz: 2H); 7.41 (broad d, J -8.5 Hz: IH); 7.64 (d, J = 9 Hz: 2H); 7.82 (broad s: IH); 7.85 (d, J = 8.5 Hz: IH); 10.43 (umesolvedpeak: IH).
EI m/z = 452 M"

nx/z = 335 [M - OCH2CH2Si(CH3)3]*
lu/z = 324 [M - CfeHnOSi]-
N-f6-f4-(diniethvlamiDo)pheDvn-lH-indazol-3-vIlbutanamide:
2.3 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 170mg of N-[6-[4-(dimethylamino)phenyl]-l-[[2-(trimethylsilyl)ethoxy]-methyl]-lH-indazol-3-yl]butanamide, described previously, in lOcm of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 50 cm of ethyl acetate are added and the organic phase is washed successively with 50 cm of saturated sodium hydrogen carbonate solution and with 50 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 160 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 ixm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 10 cm of diethyl ether, filtered off and dried under reduced pressure (90 Pa; 45°C) to give 40 mg of N-[6-chloro-5-(4-dimethylamino)phenyl)-lH-indazol-3-yl]butanamide in the form of yellow crystals melting at 260°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.98 (broad t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 2.97 (s: 6H); 6.84 (broad d, J = 8.5 Hz: 2H); 7.31 (broad d, J = 9 Hz: IH); 7.51 (broad s: IH); 7.58 (broad d, J = 8.5 Hz: 2H); 7.78 (d, J = 9 Hz: IH); 10.27 (broad s: IH); 12.52 (broad s: IH).
EXAMPLE 75
2-chloro-N-(6-chloro-lH-indazol-3-vl)acetamide
5.1 g of chloracetic anhydride are added to 5 g of 6-chloro-lH-indazole-3-amine in 300 cm of toluene and the mixture is refluxed for 18 hours. The precipitate formed is

filtered off, washed with 20 cm of toluene and then with 20 cm' of methylene chloride and dried under reduced pressure (90 Pa; 45°C) to give 5.1 g of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide in the form of a grey powder melting at 223°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 4.38 (s: 2H); 7.11 (dd, J = 9 and 1.5 Hz: IH); 7.56 (broad s: IH); 7.84 (d, J = 9 Hz: IH); 10.87 (unresolved peak: IH); 12.96 (unresolved peak: IH).
N-(6-chloro-lH-iDdazol-3-vlV4-methvl-l-piperazineacetainide
0.7 cm of N-methylpiperazine is added to 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, described previously, in 15 cm of dimethylformamide, the reaction medium is heated at 140°C for 2 hours and then concentrated to dryness under reduced pressure (2 kPa; 50°C). 50 cm of ethyl acetate and 50 cm of water are then added and the organic phase is washed with 50 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness to give 0.53 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 2.5 cm), eluting with a methylene chloride/methanol/aqueous ammonia mixture (93/7/1 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 5 cm of diethyl ether, filtered off and dried (90 Pa; 45°C) to give 192 mg of N-(6-chloro-lH-indazol-3-yl)-4-methyl-l-piperazineacetamide in the form of a beige-coloured powder melting at 165°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 2.18 (s: 3H); 2.40 (unresolved peak: 4H); 2.58 (unresolved peak: 4H); 3.22 (s: 2H); 7.09 (broad d, J = 9 Hz: IH); 7.53 (broad s: IH); 7.86 (d, J = 9Hz: IH); 10.11 (broad s: IH); 12.83 (broads: IH).
EXAMPLE 76
N-(6-chloro-l H-indazol-3-vl)-l -piperidineacetamide

The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm' of acetonitrile and 0.61 cm of piperidine. The reaction medium is refluxed for 2 hours, the precipitate formed is then filtered off on a sinter funnel and the crystals, after taking up in methanol, are purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a methylene chloride/methanol mixture (93/7 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 5 cm of diethyl ether, filtered off and dried (90 Pa; 45°C) to give 447 mg of N-(6-chloro-lH-indazol-3-yl)-l-piperidineacetamide in the form of a white powder melting at 153°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 1.42 (mt, 2H); 1.57 (mt: 4H); from 2.45 to 2.60 (mt: 4H); 3.17 (s: 2H); 7.08 (dd, J = 9 and 2 Hz: IH); 7.52 (d, J = 2 Hz: IH); 7.86 (d, J - 9 Hz: IH); 10.05 (broad s: IH); 12.82 (unresolved peak: IH).
EXAMPLE 77
N-(6-chloro-lH-indazol-3-vl)-4-morpholineacetamide
Working as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm of acetonitrile and 0.54 cm of morpholine. The reaction medium is refluxed for 2 hours and then concentrated to dryness under reduced pressure (2.7 kPa; 50°C) and the crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with ethyl acetate. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C), then dried (90 Pa; 45T) to give 470 mg of N-(6-chloro-lH-indazol-3-yl)-4-mopholineacetamide in the form of a white powder melting at about 82-90°C.
1H NMR spectrum (300 MHz. (CD3)2SO-d6, 5 in ppm): 2.58 (broad t, J = 4 Hz: 4H); 3.24 (s: 2H); 3.66 (broad t, J = 4 Hz: 4H); 7.09 (dd, J = 9 and 2 Hz: IH); 7.53 (d, J =

2 Hz: IH); 7.84 (d, J = 9Hz: IH); 10.18 (unresolved peak: IH); 12.83 (broad unresolved peak: IH).
EXAMPLE 78
N-(6-chIoro-l H-iDdazol-3-vl)-l H-1.2,4-triazoIe-l -acetamide
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm of acetonitrile, 423 mg of 1,2,4-triazole and 283 mg of potassium carbonate. The reaction mediimi is refluxed for 4 hours and then concentrated to dryness imder reduced pressure (2 kPa; 50°C); the crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with ethyl acetate. The fractions containing the expected product are combined, evaporated under reduced pressure (2 kPa; 50°C) and dried (90 Pa; 45°C) to give 120 mg of N-(6-chloro-lH-indazol-3-yl)-lH-l,2,4-triazole-l-acetamide in the form of a white powder melting above 260°C.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 5.27 (s: 2H); 7.10 (dd, J = 9 and 2 Hz: IH); 7.55 (d, J = 2 Hz: IH); 7.84 (d, J = 9 Hz: IH); 8.03 (s: IH); 8.60 (s: IH); 11.00 (unresolved peak: IH); 12.90 (unresolved peak: IH).
DCI m/z = 294 [M+NH4]
m/z = 277 [M+H]
EXAMPLE 79
N-(6-chloro-lH-indazol-3-vl)-2-(cvclohexvlamino)acetamide
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm of acetonitrile and 0.7 cm of cyclohexylamine. The reaction medium is refluxed for 2 hours and then concentrated to dryness under reduced pressure (2 kPa; 50°C); the crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica

gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a methylene chloride/methanol/aqueous ammonia mixture (97/2.5/0.25 by volume). The fractions containing the expected product are combined and the residue is taken up in 20 cm of diisopropyl ether, filtered off and dried under reduced pressure (90 Pa; 45°C) to give 492 mg of N-(6-chloro-lH-indazol-3-yl)-2-(cyclohexylamino)acetamide in the form of a white powder melting at 170°C.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): from 1.00 to 1.35 (mt: 5H); 1.56 (mt: IH); 1.70 (mt: 2H); 1.84 (very broad d, J = 12 Hz: 2H); 2.43 (mt: IH); 3.39 (s: 2H); 7.09 (dd, J - 9 and 1.5 Hz: IH); 7.52 (d, J = 1,5 Hz: IH); 7.93 (d, J = 9 Hz: IH); 12.82 (unresolved peak: IH).
EXAMPLE 80
2-[(phenvlmethvl)amino]-N-(6-chloro-lH-indazol-3-vl)acetamide
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm of acetonitrile and 0.67 cm of benzylamine. The reaction medium is refluxed for 1 hour and the precipitate formed is filtered off, washed with 5 cm of acetonitrile and 5 cm of methylene chloride, then purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a methylene chloride/methanol/aqueous ammonia mixture (97/2.5/0.25 by volume). The fractions containing the expected product are combined and the residue is taken up in 20 cm' of diisopropyl ether, filtered off and dried under reduced pressure (90 Pa; 45°C) to give 305 mg of 2-[(phenylmethyl)amino]-N-(6-chloro-lH-indazol-3-yl)acetamide in the form of a white powder melting at 156°C.
H NMR spectrum (300 MHz, (CD3)2SO-d6, Sin ppm): 3.39 (s: 2H); 3.79 (s: 2H); 7.09 (dd, J = 9 and 2 Hz: IH); 7.26 (broad t, J = 7 Hz: IH); from 7.30 to 7.45 (mt: 4H); 7.53 (d, J = 2 Hz: IH); 7.89 (d, J = 9 Hz: IH); from 10.00 to 10.60 (very broad unresolved peak: IH); 12.82 (unresolved peak: IH).

EXAMPLE 81
N-(6-chloro-lH-indazol-3-vn-lH-azepine-l-acetamide
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm of acetonitrile and 0.69 cm of hexamethyleneimine. The reaction medium is refluxed for 2 hours and then concentrated to dryness under reduced pressure (2 kPa; 50°C); the crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 2.5 cm), eluting with ethyl acetate. The fi-actions containing the expected product are combined and the residue is taken up in 10 cm' of diisopropyl ether, filtered off and dried under reduced pressure (90 Pa; 45°C) to give 670 mg of N-(6-chloro-lH-indazol-3-yl)-lH-azepine-l-acetamide in the form of a yellow foam.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): fi-om 1.50 to 1.75 (mt: 8H); 2.77 (t, J = 5 Hz: 4H); 3.36 (s: 2H); 7.09 (dd, J = 9 and 2 Hz: IH); 7.54 (d, J - 2 Hz: IH); 7.90 (d, J = 9 Hz: IH); 10.06 (unresolved peak: IH); fi-om 12.50 to 13.20 (broad unresolved peak: IH).
EI m/z = 306 M-
EXAMPLE 82
N-(6-chloro-lH-inda2ol-3-vn-l-piperazineacetamide
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm of acetonitrile and 528 mg of piperazine. The reaction medium is refluxed for 1 hour and then concentrated to dryness under reduced pressure (2 kPa; 50°C); the crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 jum; diameter 2.5 cm), eluting with a methylene chloride/methanol/aqueous ammonia mixture (90/10/1 by volume). The fractions containing the expected product are combined, concentrated under reduced pressure and then dried (90 Pa; 45°C) to give

380 mg of N-(6-chloro-lH-indazol-3-yl)-l-piperazineacetamide in the form of a white foam.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 2.49 (mt: 4H); 2.77 (mt: 4H); 3.19 (s: 2H); 7.10 (dd, J = 9 and 2 Hz: IH); 7.55 (d, J = 2 Hz: IH); 7.86 (d, J = 9 Hz: IH); 10.10 (unresolved peak: IH).
EI m/z = 293 M*'
m/z = 99 [CsHuNz
EXAMPLE 83
N-(6-chloro-lH-indazol-3-vn-2-[f3-(dimethvlamino)propvl1aniiDo]acetamide
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm' of acetonitrile and 0.77 cm of 3-(dimethylamino)propylamine. The reaction medium is refluxed for 3 hours and then concentrated to dryness under reduced pressure (2 kPa; 50°C); the crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 //m; diameter 2.5 cm), eluting with a methylene chloride/methanol/aqueous ammonia mixture (90/10/1 by volume). The fractions containing the expected product are combined, concentrated under reduced pressure and then dried (90 Pa; 45°C) to give 300 mg of N-(6-chIoro-lH-indazol-3-yl)-2-[[3-(dimethylamino)propyl]amino]acetamide in the form of Ught-brown foam.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.69 (mt: 2H); 2.11 (s: 6H); 2.28 (t, J - 7 Hz: 2H); 2.60 (broad t, J = 7 Hz: 2H); 3.35 (s: 2H); 7.08 (dd, J = 9 and 2 Hz: IH); 7.53 (d, J = 2 Hz: IH); 7.89 (d, J = 9 Hz: IH); from 12.00 to 13.00 (very broad unresolved peak: IH).
EI: m/z = 309 M"
EXAMPLE 84

N-(6-chloro-lH-iDdazol-3-vDthiomorpholiDe-4-acetamide
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm of acetonitrile and 0.62 cm of thiomorpholine. The reaction medium is refluxed for 2 hours, the precipitate formed is filtered off and the filtrate is concentrated to dryness under reduced pressure (2 kPa; 50°C); the crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 fim; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume). The fractions containing the expected product are combined, evaporated under reduced pressure (2kPa; 50°C) and dried (90 Pa; 45°C) to give 560 mg of N-(6-chloro-lH-indazol-3-yl)thiomorpholine-4-acetamide in the form of a pale yellow foam.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 2.70 (mt: 4H); 2.83 (mt: 4H); 3.27 (s: 2H); 7.10 (dd, J = 9 and 2 Hz: IH); 7.54 (d, J = 2 Hz: IH); 7.82 (d, J = 9 Hz: IH); 10.16 (unresolved peak: IH); fi-om 12.60 to 13.10 (broad unresolved peak: IH).
EI m/z = 310 M-
m/z=116 [CsCHioNS]
EXAMPLE 85
N-(6-chloro-lH-indazoI-3-vl)-l-pvrrolidineacetamide
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm of acetonitrile and 0.51 cm of pyrrolidine. The reaction medium is refluxed for 2 hours and then concentrated to dryness under reduced pressure (2 kPa; 50°C); the crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 iim; diameter 2 cm), eluting with a methylene chloride/methanol/aqueous ammonia mixture (95/5/1 by volume). The fractions containing the expected product are combined, evaporated under reduced pressure (2 kPa; 50°C) and dried (90 Pa;

45°C) to give 440 mg of N-(6-chloro-lH-indazol-3-yl)-l-pyrrolidineacetamide in the form of an off-white powder melting at 168°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 1.76 (mt: 4H); 2.64 (mt: 4H); 3.35 (s: 2H); 7.09 (dd, J = 9 and 2 Hz: IH); 7.53 (d, J = 2 Hz: IH); 7.84 (d, J = 9 Hz: IH); 10.13 (unresolved peak: IH); from 12.50 to 13.10 (ver>'broad unresolved peak: IH).
EXAMPLE 86
N-f6-chloro-lH-iDdazol-3-vI)-2-[[2-(dimethvlamino)ethvllamino1acetamide
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm of acetonitrile and 0.68 cm of N,N-dimethylethylenediamine. The reaction medium is refluxed for 2 hours and then concentrated to dryness under reduced pressure (2 kPa; 50°C); the crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 2.5 cm), eluting with a methylene chloride/methanol/aqueous ammonia mixture (95/5/1 by volume). The fractions containing the expected product are combined, concentrated under reduced pressure and then dried (90 Pa; 45°C) to give 113 mg of N-(6-chloro-lH-indazol-3-yl)-2-[[2-(dimethylamino)ethyl]amino]acetamide in the form of a white solid melting at 104°C.
1H NMR spectrum (300 MHz, (CDiJSO-dd, Sin ppm): 2.15 (s: 6H); 2.34 (t, J = 6 Hz: 2H); 2.66 (t, J = 6 Hz: 2H); 3.40 (s: 2H); 7.08 (broad dd, J = 9 and 2 Hz: IH); 7.52 (broad s: IH); 7.90 (d, J = 9 Hz: IH); from 9.50 to 10.30 (very broad unresolved peak: IH); 12.81 (unresolved peak: IH).
EXAMPLE 87
N-(6-chloro-lH-indazol-3-vl)-l-cvclopropvlaminoacetamide trifluoroacetate
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm of acetonitrile and 0.45 cm of

cyclopropylamine. The reaction medium is refluxed for 2 hours and then concentrated to dryness under reduced pressure (2 kPa; 50°C); the crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 /m; diameter 2 cm), eluting with ethyl acetate. The fractions containing the expected product are combined and concentrated under reduced pressure to give 300 mg of product which is still impure, which is purified by HPLC. After concentrating the fractions containing the expected product and drying under reduced pressure (90 Pa; 45°C), 140 mg of N-(6-chloro-lH-indazol-3-yl)-l-cyclopropylaminoacetamide trifluoroacetate are obtained in the form of a white powder melting at 218°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): from 0.70 to 0.95 (mt: 4H) 2.82 (mt: IH); 4.15 (s: 2H); 7.14 (broad dd, J = 9 and 2 Hz: IH); 7.58 (broad s: IH) 7.86 (d, J = 9Hz: IH); 9.14 (unresolved peak: 2H); 11.08 (unresolved peak: IH) 12.98 (broad s: IH).
EXAMPLE 88
N-(6-chloro-lH-indazol-3-vl)-2-(2-diethvlaminoethvlamino)acetamide tris-
(trifluoroacetate)
The process is performed as in Example 75, starting with 500 mg of 2-chloro-N-(6-chloro-lH-indazol-3-yl)acetamide, 15 cm' of acetonitrile and 0.86 cm of N,N-diethylethylenediamine. The reaction medium is refluxed for 2 hours and then concentrated to dryness under reduced pressure (2 kPa; 50°C); the crude product is purified by HPLC (Kromasil column; Cg, 7/im; length 350 mm, diameter 60 mm, eluent: acetonitrile/water (20 80 by volume) containing 0.1% trifluoroacetic acid; flow rate 125 cm /min). The fractions containing the expected product are combined, concentrated under reduced pressure (2 kPa; 50°C) and then dried (90 Pa; 45°C) to give 870 mg of N-(6-chIoro-lH-indazol-3-yl)-2-(2-diethylaminoethylamino)acet-amide tris(trifluoroacetate) in the form of a white solid melting at 160°C.

1H NMR spectrum (400 MHz, (CD3)2SO-d6 with addition of a few drops of CD3COOD-d4, at a temperature of 363 K, 5 in ppm); 1.24 (t, J = 7.5 Hz: 6H); 3.23 (q, J = 7.5 Hz: 4H); 3.47 (mt: 4H); 4.16 (s: 2H); 7.12 (broad d, J = 8.5 Hz: IH); 7.58 (broad s: IH); 7.87 (d, J = 8.5 Hz: IH).
EXAMPLE 89
N-r5,6-diphenvI-l-rr2-ftrimethvlsilvnethoxvlmethvll-lH-indazoI-3-vllbutanamide:
1.12 g of phenylboronic acid, 1.55 g of sodium carbonate in 40 cm of water and 463 mg of tetrakis(triphenylphosphine)palladium are added to 1 g of N-[5,6-dibromo-1 -[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 70, in 150 cm of dioxane, and the mixture is refluxed for 18 hours. The reaction medium is diluted with 100 cm' of ethyl acetate and with 100 cm' of water and is then filtered through a sinter funnel packed with Celite. The organic phase is separated out after settling of the phases has taken place and washed with 75 cm' of saturated sodium chloride solution, separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa; 50°C) to give 2.6 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 fim; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fi-actions containing the expected product are combined, evaporated under reduced pressure (2 kPa; 50°C) and then dried (90 Pa; 45°C) to give 1.4 g of N-[5,6-diphenyl-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butan-amide in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, Sin ppm): -0.06 (s: 9H); 0.86 (t, J = 8 Hz: 2H); 0.96 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.42 (broad t, J = 7 Hz: 2H); 3.59 (t, J = 8Hz: 2H); 5.74 (s: 2H); from 7.05 to 7.35 (mt: lOH); 7.71 (s: IH); 7.89 (s: IH); 10.57 (unresolved peak: IH).

EI m/z = 485 M'
ni/z = 368 [M - OCH2CH2Si(CH3)3]*
m/z = 357 [M-CsHnOSif
N-f5,6-dipheDvl-lH-iD(iazol-3-vl1butaDamide:
17.2 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1.5 g of N-[5,6-diphenyl-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide, described previously, in 40 cm' of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 75 cm of ethyl acetate are added and the organic phase is washed with 75 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 1.5 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the product, which is still impure, is purified by HPLC (Hypersil column; Cig, 5m; length 250 mm, diameter 21 mm, eluent: methanol/water (70/30 by volume) containing 0.1% trifluoroacetic acid; flow rate lOcm/min); after concentrating to dryness the fractions containing the expected product, the residue is taken up in 10 cm' of diisopropyl ether, filtered off, washed with 2x5 cm' of diisopropyl ether and dried (90 Pa; 45°C) to give 100 mg of N-[5,6-diphenyl-lH-indazol-3-yl]butanamide in the form of white crystals melting at 210°C.
1H NMR spectrum (300 MHz. (CD3)2SO-d6, 5 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.65 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); from 7.00 to 7.30 (mt: lOH); 7.40 (s: IH); 7.82 (s: IH); 10.43 (broads: IH); 12.75 (unresolvedpeak: IH).
EXAMPLE 90

N-I6-chloro-5-(4-methvlpheDvlVl-[[2-(trimethvlsilvDetboxvlmethvl]-lH-indazol-3-vllbutananiide
The process is performed as in Example 62, starting with 1 g of N-[5-bromo-6-chloro-l-[[2-(trimethylsilyl)ethoxy])methyl]-lH-indazol-3-yl]butanamide, described in Example 58, in 50 cm of dioxane, 456 mg of 4-methylphenylboronic acid, 560 mg of sodium carbonate, 20 cm of distilled water and 155 mg of tetrakis(triphenylphosphine)palladium. The mixture is refluxed for 90 minutes and is then allowed to return to 20°C, the reaction medium is filtered through a sinter furmel packed with Celite and 60 cm of ethyl acetate are then added to the filtrate. The organic phase separated out after settling of the phases has taken place, washed with 30 cm' of saturated aqueous sodium chloride solution and then dried over magnesium sulphate. After filtration, the filtrate is concentrated to dryness under reduced pressure (2 kPa; 50°C) and the residue is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 /im; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 880 mg of N-[6-chloro-5-(4-methylphenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-idazol-3-yl]butanamide are obtained in the form of an off-white powder.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, Sin ppm): -0.05 (s: 9H); 0.85 (t, J = 8 Hz: 2H); 0.93 (t, J = 7.5 Hz: 3H); 1.64 (mt: 2H); 2.39 (s: 3H); 2.39 (t, J = 7 Hz: 2H); 3.56 (t, J = 8 Hz: 2H); 5.70 (s: 2H); 7.30 (mt: 4H); 7.87 (s: IH); 7.99 (s: IH); 10.59 (unresolved peak: IH)
EI m/z = 457 M'
m/z = 340 [M - OCH2CH2Si(CH3)3]
m/z = 329 [M - C6Hi20Si] N-f6-chloro-5-(4-methvlphenvl)-lH-indazol-3-vl]butanamide

11.4 cm' of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 870 mg of N-[6-chloro-5-(4-methylphenyl)-l-[[2-(trimethylsilyl)ethoxy]-methyl]-lH-indazol-3-yl]butanamide, described previously, in 20 cm of tetrahydrofuran. The medium is then refluxed for 20 hours and the mixture is then allowed to return to room temperature and 20 cm of ethyl acetate are added; the organic phase is washed with 2x20 cm' of saturated aqueous sodium hydrogen carbonate solution and then with 220 cm of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place," dried over magnesium sulphate, filtered and evaporated to dryness under reduced pressure (2kPa; 45°C). The residue is taken up in 10 cm of diethyl ether, filtered off on a sinter fliimel and then dried under reduced pressure (90 Pa; 50°C) to give 195 mg of N-[6-chloro-5-(4-methylphenyl)-lH-indazol-3-yl]butanamide in the form of a beige-coloured powder.
1H NMR spectrum (400 MHz, (CD3)2SO-d6, 6 in ppm): 0.93 (t, J = 7.5 Hz: 3H); 1.63 (mt: 2H); fi-om 2.30 to 2.50 (mt: 2H); 2.38 (s: 3H); 7.28 (mt: 4H); 7.64 (s: IH); 7.81 (s: IH); 10.45 (unresolved peak: IH).
EI m/z = 327 M
m/z = 257 [M - C4CH60]
EXAMPLE 91
N-[6-[4-(phenvlmethoxv)phenvl-1-5-phenvl-l-[[2-(trimethvlsilvl)ethoxv1methvn-lH-indazol-3-vl]butanamide
306 mg of phenylboronic acid, 427 mg of sodium carbonate in 30 cm of water, and 248 mg of tetrakis(triphenylphosphine)palladium are added to 1 g of N-[5-bomo-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, prepared in Example 63, in 100 cm of dioxane, and the mixture is refluxed for 18 hours. 100 cm of ethyl acetate and 100 cm of water are added and the reaction medium is filtered through a sinter funnel packed with CeUte. The

organic phase is separated out after settling of the phases has taken place, washed successively with 100 cm of water and with 100 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa-50°C) to give 2.5 g of an oil, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fi-actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 1 g of N-[6-[4-(phenylmethoxy)phenyl]-5-phenyl-l-[[2-(trimethylsilyl]ethoxy]methyl]-lH-indazol-3-yl]butanamide in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.06 (s: 9H); 0.84 (t, J -8 Hz: 2H); 0.94 (t, J = 7.5 Hz: 3H); 1.65 (mt: 2H); 2.40 (broad t, J = 7 Hz: 2H); 3.57 (t, J = 8 Hz: 2H); 5.09 (s: 2H); 5.71 (s: 2H); 6.92 (d, J = 8.5 Hz: 2H); from 7.00 to 7.55 (mt: lOH); 7.08 (d, J = 8.5 Hz: 2H); 7.66 (s: IH); 7.85 (s: IH); 10.54 (unresolved peak: IH).
EI m/z = 591 M
m/z = 474 [M - OCH:CH2Si(CH3)3]
N-f5-pheDvl-6-f4-(phenvlmethoxv)phenvl]-lH-indazol-3-vl]butanamide:
10.1 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1 g of N-[6-[4-(phenylmethoxy)phenyl]-5-phenyl-l-[[2-(trimethylsilyl)-ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 40 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 75 cm of ethyl acetate are added and the organic phase is washed successively with 100 cm of saturated sodium hydrogen carbonate solution and with 75 cm' of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 2 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel

(particle size 40-60 [im; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is dried (90 Pa; 45°C) to give 650 mg of N-[5-phenyl-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6,5 in ppm): 0.96 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 5.08 (s: 2H); 6.91 (d, J = 8.5 Hz: 2H); from 7.05 to 7.55 (mt: lOH); 7.09 (d, J = 8.5 Hz: 2H); 7.36 (s: IH); 7.80 (s: IH); 10.42 (broad s: IH); 12.70 (broad s: IH).
EI m/z = 461 M*-
m/z-391 [M-C4CH60r
m/z = 300 [391-C6H5CH:r
N-f5-phenvl-6-(4-hvdroxvpheDvlVlH-indazol-3-vl]butaDamide
10 cm of trimethylsilyl iodide are added to 650 mg of N-[5-phenyl-6-[4-(phenylmethoxy)phenyl])-lH-indazol-3-yl]butanamide, prepared previously, and the mixture is refluxed for 3 hours. 3 cm of methanol are added and the reaction medium is refluxed for 15 minutes and then concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 75 cm' of ethyl acetate and washed with 2x50 cm of 10% sodium thiosulphate solution and then with 50 cm of water and with 50 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure to give 0.6 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 /xm; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by \olume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 10 cm of diisopropyl ether, filtered off, washed with 5 cm of ethyl acetate and

with 5 cm of diethyl ether, and then dried (90 Pa; 45°C) to give 200 mg of N-[5-phenyl-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide mehing at 220°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.65 (mt: 2H); 2.38 (t, J = 7 Hz: 2H); 6.63 (d, J = 8 Hz: 2H); 6.94 (d, J = 8 Hz: 2H); 7.09 (broad d, J = 7.5 Hz: 2H); from 7.15 to 7.30 (mt: 3H); 7.33 (s: IH); 7.77 (s: IH); 9.40 (unresolvedpeak: IH); 10.40(broads: IH); 12.67 (unresolvedpeak: IH).
EXAMPLE 92
N-16-chloro-5-(4,4,5,5-tetramethvUl,3,21dioxaborolan-2-vn-l-[2-(trimethvlsilvDethoxvlmethvU-lH-indazol-S-vllbutanamide;
5.11 g of bis(pinacolato)diborane, 277 mg of bis(dibenzylideneacetone)palladium, then 2.48 g of potassium acetate and finally 330 mg of tricyclohexylphosphine are added to 7.5 g of N-[5-bromo-6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 58, in 225 cm"' of dioxane. The medium is refluxed for 18 hours and the resulting mixture is then allowed to return to room temperature and 100 cm of ethyl acetate and 100 cm of water are added. The organic phase is separated out after settling of the phases has taken place, washed with 100 cm of water, with 100 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure (2 kPa; 45°C) to give 11.2 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 pim; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); 6.16g of N-[6-chloro-5-(4,4,5,5-tetramethyl[l,3,2]dioxaborolan-2-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are obtained in the form of an orange-coloured oil. The product is used directly.
N-[6-chloro-5-(4-nitropheDvl)-l-f[2-(trimethvlsiIvl)ethoxvlmethvl1-lH-indazol-3-yllbutanamide:

246 mg of 4-bromonitrobenzene, 1.2 g of sodium carbonate in 20 cm of water and 365 mg of tetrakis(triphenylphosphine)palladium are added to 2 g of N-[6-chloro-5-(4,4,5,5-tetramethyl[l,3,2]dioxaborolan-2-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 100 cm' of dioxane. The medium is then refluxed for 20 hours and the resulting mixture is then allowed to return to room temperature and 100 cm of ethyl acetate and 100 cm of water are added. The reaction medium is filtered through a sinter funnel packed with Celite and the organic phase is separated out after settling of the phases has taken place, washed with 100 cm of water, with 100 cm of saturated aqueous sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 45°C). The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 nm; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture (85/15 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C). 690 mg of N-[6-chloro-5-(4-nitrophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide are obtained in the form of yellow crystals.
IR hMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.05 (s: 9H); 0.85 (t, J = 8 Hz: 2H); 0.92 (t, J = 7.5 Hz: 3H); 1.62 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 3.56 (t, J = 8 Hz: 2H); 5.72 (s: 2H); 7.74 (d, J = 8.5 Hz: 2H); 8.01 (s: IH); 8.09 (s: IH); 8.35 (d, J = 8.5 Hz: 2H); 10.70 (unresolved peak: IH).
EI m/z = 488 M'
m/z = 371 [M - OCH2CH2Si(CH3)3r
m/z = 360 [M - CftHaOSi]'
m/z = 73 [Si(CH3)3]
N-[6-chloro-5-(4-pvridvl)-lH-indazol-3-vI1butanamide:

36.8 cm" of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 3 g of N-[6-chloro-5-(4-nitrophenyl)-l-[[2-(triInethylsilyl)ethoxy]nlethyl]-lH-indazol-3-yl]butanamide, described previously, in 135 cm of tetrahydrofuran. The medium is then refluxed for 18 hours and is then allowed to return to room temperature to add 100 cm' of ethyl acetate and 75 cm of saturated aqueous sodium hydrogen carbonate solution. The organic phase is separated out after settling of the phases has taken place, washed with 100 cm of saturated aqueous sodium hydrogen carbonate solution and then with 100 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness imder reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 fim; diameter 2 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and concentrated to dryness under reduced pressure (2 kPa; 50°C); the residue is taken up in 35 cm of diisopropyl ether, filtered off on a sinter funnel and then washed with 2x20 cm' of diisopropyl ether. After drying (90 Pa; 50°C), 88 mg of N-[6-chloro-5-(4-nitrophenyl)-lH-indazol-3-yljbutanamide are obtained in the form of yellow crystals mehing at 260°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.92 (t, J = 7.5 Hz: 3H); 1.62 (mt: 2H); 2.37 (t, J = 7 Hz: 2H); 7.73 (d, J = 8 Hz: 2H); 7.72 (s: IH); 7.96 (s: IH); 8.34 (d, J = 8Hz: 2H); 10.58 (broad s: IH); fi-om 12.50 to 13.20 (very broad unresolved peak: IH).
EXAMPLE 93
N-[5-(4-aminophenvl)-6-chloro-lH-indazol-3-vl]butanamide:
845 mg of zinc powder are added to 0.93 g of N-[6-chloro-5-(4-nitrophenyl)-lH-indazol-3-yl]butanamide, described previously, in 50 cm' of acetic acid, followed, 1 hour later, by addition of a further 845 mg of zinc; the reaction medium is filtered through a sinter funnel packed with Celite and the filtrate is concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 100 cm' of ethyl acetate and 75 cm' of water and the organic phase is separated out after settling of the

phases has taken place, washed successively with 75 cm of water and with 50 cm of saturated sodium hydrogen carbonate solution, dried over magnesium sulphate, filtered and concentrated to dryness to give 480 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and the soUd is triturated in 10 cm of diethyl ether, filtered off, washed with 2x5 cm of diethyl ether and then dried (90 Pa; 45°C) to give 110 mg of N-[5-(4-aminophenyl)-6-chloro-lH-indazol-3-yl]butanamide in the form of an ochre-coloured solid.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.92 (t, J = 7.5 Hz: 3H); 1.63 (mt: 2H); 2.36 (t, J = 7 Hz: 2H); 5.21 (unresolved peak: 2H); 6.63 (d, J = 8 Hz: 2H); 7.06 (d, J = 8Hz: 2H); 7.58 (s: IH); 7.72 (s: IH); 10.42 (broad s: IH); 12.71 (unresolved peak: IH).
EI m/z = 328 M
m/z = 284 [M - CjHe]'
m/z = 258 [M - C4CH60]
EXAMPLE 94
N-f6-chloro-5-(4-ethvlphenvn-l-rf2-(trimethvlsilvnethoxv1methvn-lH-indazol-3-vllbutanamide
504 mg of 4-ethylphenylboronic acid, 664 mg of sodium carbonate in 20 cm of distilled water and 202 mg of tetrakis(triphenylphosphine)palladium are added to 1 g of N-[5-bromo-6-chloro-1 -[[2-(trimethylsilyl)ethoxy]methyl]-1 H-indazol-3-yl]butan-amide, described in Example 58, in 75 cm of dioxane. The mixture is refluxed for 18 hours and then the temperature is allowed to return to room temperature to add 75 cm' of ethyl acetate and 50 cm of water, and the reaction medium is filtered through a sinter funnel packed with Celite. The filtrate is separated by settling and the

organic phase is washed successively with 50 cm of water, with 50 cm of saturated aqueous sodium chloride solution, separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle" size 40-60 /im; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated imder reduced pressure (2 kPa; 50°C), and then dried (90 Pa; 50°C) to give 1.1 g of N-[6-chloro-5-(4-ethylphenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.05 (s: 9H); 0.85 (t, J = 8 Hz: 2H); 0.93 (t, J = 7.5 Hz: 3H); 1.26 (t, J = 7.5 Hz: 3H); 1.64 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 2.69 (q, J = 7.5 Hz: 2H); 3.55 (t, J = 8 Hz: 2H); 5.70 (s: 2H); 7.33 (mt: 4H); 7.89 (s: IH); 8.00 (s: IH); 10.64 (unresolved peak: IH).
EI m/z = 471 M*-
m/z = 354 [M - OCH2CH2Si(CH3)3]
m/z = 343 [M - CaHnOSi]
N-[6-chloro-5-(4-ethvlphenvl)-lH-indazol-3-vHbutanamide
14 cm' of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1.1 g of N-[6-chloro-5-(4-ethylphenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide (batch P-31335-046-2), described previously, in 50 cm of tetrahydrofliran. The medium is then refluxed for 18 hours and the mixture is then allowed to return to room temperature and 75 cm of ethyl acetate are added; the organic phase is washed with 2x100 cm of saturated aqueous sodium hydrogen carbonate solution and then with 75 cm of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and evaporated to dryness under

reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 20 cm of diisopropyl ether, filtered off on a sinter funnel and washed with 210 cm of diisopropyl ether. After drying under reduced pressure (90 Pa; 50°C), 440 mg of N-(6-chloro-5-phenyl-IH-indazol-3-yl)butanamide are obtained in the form of white crystals melting at 240°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.92 (t, J = 7.5 Hz: 3H); 1.24 (t, J = 7.5 Hz: 3H); 1.62 (mt: 2H); 2.37 (t, J = 7 Hz: 2H); 2.67 (q, J = 7.5 Hz: 2H); 7.31 (mt: 4H); 7.64 (s: IH); 7.82 (s: IH); 10.48 (unresolved peak: IH); 12.80 (unresolved peak: IH).
EXAMPLE 95
N-f6-chloro-5-f4-(pheDvlmethoxv)phenvl]-l-[[2-(trimethvlsilvI)ethoxvlmethvll-lH-indazol-3-vl1butanamide
1.54 g of 4-benzyloxyphenylboronic acid, 1.32 g of sodium carbonate in 20 cm of water and 404 mg of tetrakis(triphenylphosphine)palladium are added to 2 g of N-[5-bromo-6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described in Example 58, in 100 cm of dioxane. The mixture is refluxed for 18 hours, the temperature is then allowed to return to room temperature to add 75 cm of ethyl acetate and 50 cm' of water, and the reaction medium is filtered through a sinter funnel packed with Celite. The filtrate is separated by settling and the organic phase is washed successively with 100 cm of water and then with 75 cm of saturated aqueous sodium chloride solution, separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 iim; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated

under reduced pressure (2 kPa; SO'C); the residue is taken up in 50 cm of cyclohexane, filtered off, washed with 2x25 cm of cyclohexane and dried under reduced pressure (90 Pa; 50°C) to give 2.35 g of N-[6-chloro-5-[4-(phenyknethoxy)phenyl] -1-[ [2-(trimethylsilyl)ethoxy]methyl] -1 H-indazol-3-yljbutanamide in the form of white crystals melting at 130°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): -0.06 (s: 9H); 0.84 (t, J = 8 Hz: 2H); 0.92 (t, J = 7.5 Hz: 3H); 1.63 (mt: 2H); 2.38 (t, J = 7 Hz: 2H); 3.54 (t, J = 8 Hz: 2H); 5.18 (s: 2H); 5.69 (s: 2H); 7.11 (d, J = 8.5 Hz: 2H); from 7.30 to 7.55 (mt: 5H); 7.35 (d, J = 8.5 Hz: 2H); 7.86 (s: IH); 7.98 (s: IH); 10.61 (unresolved peak: IH).
N-f6-chloro-5-[4-(phenvlmethoxv)pheDvIl-lH-mdazol-3-vl1butanamide
25.1 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofliran are added to 1.1 g of N-[6-chloro-5-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)-ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 50 cm of tetrahydrofuran. The medium is then refluxed for 18 hours and the resulting mixture is allowed to return to room temperature and 100 cm of ethyl acetate are added; the organic phase is washed with 2x100 cm of saturated aqueous sodium hydrogen carbonate solution and then with 100 cm of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and evaporated to dryness under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 jum; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fi-actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 30 cm of diisopropyl ether, filtered off on a sinter funnel and washed with 2x20 cm' of diisopropyl ether. After drying under reduced pressure (90 Pa; 50°C), 1.3 g of N-[6-chloro-5-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide are obtained in the form of white crystals melting at 230°C.

1H NMR spectrum (300 MHz, (CD3)2SO-d6,5 in ppm): 0.93 (t, J = 7.5 Hz: 3H); 1.63 (mt: 2H); 2.37 (t, J = 7 Hz: 2H); 5.18 (s: 2H); 7.11 (d, J = 8.5 Hz: 2H); 7.35 (d, J = 8.5 Hz: 2H); 7.37 (mt: IH); 7.44 (broad t, J = 7.5 Hz: 2H); 7.51 (broad d, J = 7.5 Hz: 2H); 7.64 (s: IH); 7.81 (s: IH); 10.48 (broad s: IH); 12.80 (um-esolved peak: IH).
EXAMPLE 96
N-|6-chloro-5-(4-hvdroxvpheDvl)-lH-indazol-3-vl1butanamide
20 cm' of trimethylsilyl iodide are added to 1.1 g of N-[6-chloro-5-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide, prepared in Example 95, and the mixture is refluxed for 18 hours. 30 cm of methanol are added and the reaction medium is refluxed for 30 minutes and then concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 100 cm' of ethyl acetate and 100 cm of water and the organic phase is washed with 2x75 cm of 10% sodium thiosulphate solution and then with 70 cm of water and 75 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure to give 1.44 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 jum; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 20 cm' of diisopropyl ether, filtered off, washed with 3x10 cm of diisopropyl ether and then dried (90 Pa; 45°C) to give 210 mg of N-[6-chloro-5-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide in the form of a white powder.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.92 (t, J = 7.5 Hz: 3H); 1.62 (mt: 2H); 2.37 (t, J = 7 Hz: 2H); 6.84 (d, J = 8.5 Hz: 2H); 7.21 (d, J = 8.5 Hz: 2H); 7.61 (s: IH); 7.77 (s: IH); 9.57 (unresolved peak: IH); 10.45 (broad s: IH); 12.76 (unresolved peak: IH).
EI mJz = 329 M'

m/z = 259 [M - C4CH60]-
EXAMPLE 97
N-f5.6-bis 4-[(phenvlniethorv)pheDvl1-l-ff2-(trimethvlsilvnethoxv]methvH-lH-indazol-3-vl1butananiide
1.9 g of 4-benzyloxyphenylboronic acid, 1.63 g of sodium carbonate in 20 cm of distilled water and 500 mg of tetrakis(triphenylphosphine)palIadium are added to 1.35 g of N-[5,6-dibromo-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide, described in Example 70, in 100 cm' of dioxane. The mixture is refluxed for 18 hours, the temperature is then allowed to return to room temperature to add 100 cm of ethyl acetate and 100 cm of water, and the reaction medium is filtered through a sinter funnel packed with Celite. The organic phase is separated out after settling of the phases has taken place, washed with 100 cm of saturated aqueous sodium chloride solution, separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fi-actions containing the expected product are combined, evaporated under reduced pressure (2 kPa; 50°C) and dried (90 Pa; 50°C) to give 1.96 g of N-[5,6-bis[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide in the form of an orange-coloured oil in a purity of 70%, which product is used without further modification in the following step.
H NMR spectrum (300 MHz, (CD3)2SO-d6, Sin ppm): -0.06 (s: 9H); 0.85 (t, J -8 Hz: 2H); 0.96 (t, J = 7.5 Hz; 3H); 1.66 (mt: 2H); 2.41 (broad t, J = 7 Hz: 2H); 3.57 (t, J = 8 Hz: 2H); 5.10 (mt: 4H); 5.71 (broad s: 2H); from 6.90 to 7.00 (mt: 4H); 7.04 (d, J = 8.5 Hz: 2H); 7.11 (d, J = 8.5 Hz: 2H); from 7.30 to 7.55 (mt: lOH); 7.64 (s: IH); 7.81 (s: IH); 10.55 (unresolved peak: IH).
EI m/z = 697 M'

m/z = 580 [M - OCH2CH2Si(CH3)3]
m/z - 91 [C6H5CH2]*
N-f5,6-bis[4-(pheDvlmethoxv)pheDvl|-lH-indazol-3-vllbutanamide
16.3 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofliran are added to 1.9 g of N-[5,6-bis[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]-methyl]-lH-indazol-3-yl]butanamide, described previously, in 100 cm of tetrahydrofliran. The medium is then refluxed for 18 hours and is then allowed to return to room temperature and 100 cm' of ethyl acetate are added; the organic phase is washed with 2x100 cm of saturated aqueous sodium hydrogen carbonate solution and then with 100 cm' of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and evaporated to dryness under reduced pressure (2 kPa; 50°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 fxm; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 25 cm of diisopropyl ether, filtered off on a sinter funnel and washed with 220 cm of diisopropyl ether. After drying under reduced pressure (90 Pa; 50°C), 700 mg of N-[5,6-bis[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide are obtained in the form of white crystals melting at 140°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.65 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 5.08 (broad s: 4H); from 6.85 to 7.00 (mt: 4H); 7.01 (d, J = 9 Hz: 2H); 7.09 (d, J - 9 Hz: 2H); from 7.30 to 7.55 (mt: lOH); 7.33 (s: IH); 7.74 (s: IH); 10.39 (broad s: IH); 12.67 (broad s: IH).
EXAMPLE 98
N-[5.6-bis(4-hvdroxvpheDvl)-lH-indazol-3-vllbutanamide

10 cm of trimethylsilyl iodide are added to 700 mg of N-[5,6-bis[4-(phenyLmethoxy)phenyl]-lH-indazol-3-yl]butanamide, prepared in Example 97, and the mixture is refluxed for 18 hours. 30 cm of methanol are added and the reaction medium is refluxed for 15 minutes and is then concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 75 cm of ethyl acetate and the organic phase is washed with 2x75 cm of 10% sodium thiosulphate solution and then with 75 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 900 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 fim; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 20 cm' of diisopropyl ether, filtered off, washed with 3 cm' of ethyl acetate, then with 2x10 cm' of diisopropyl ether and dried (90 Pa; 45°C) to give 220 mg of N-[5,6-bis(4-hydroxyphenyl)-lH-indazol-3-yljbutanamide in the form of a white powder melting at 180°C.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.65 (mt: 2H); 2.38 (t, J = 7 Hz: 2H); from 6.55 to 6.70 (mt: 4H); 6.86 (d, J = 9 Hz: 2H); 6.94 (d, J = 9 Hz: 2H); 7.28 (s: IH); 7.68 (s: IH); 9.34 (unresolved peak: 2H); 10.36 (broads: IH); 12.60 (unresolvedpeak: IH).
EXAMPLE 99
N-[5-(3-furvl)-6-f4-(phenvlmethoxv)phenvl1-l-[[2-(trimethvlsilvDethoxv1methvl]-lH-indazol-3-vnbutanamide
353 mg of 3-furylboronic acid, 624 mg of sodium carbonate in 25 cm of water, and 311 mg of tetrakis(triphenylphosphine)pal]adium are added to 1.25 g of N-[5-bromo-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide, prepared in Example 63, in 125 cm of dioxane, and the mixture is refluxed for 18 hours. 100 cm of ethyl acetate and 75 cm' of water are added and the

reaction medium is filtered through a sinter funnel packed with Celite. The organic phase is separated out after settling of the phases has taken place, washed successively with 75 cm' of water and with 75 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa; 50°C) to give 2.6 g of an oil, which is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 iim; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 1 g of N-[5-(3-furyl)-6-[4-(phenylmethoxy)phenyl]-1 -[[2-(trimethylsilyl)ethoxy]methyl]-1 H-indazol-3-yl]butan-amide in the form of cream-coloured crystals.
IR NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): -0.07 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.97 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.55 (t, J = 8 Hz: 2H); 5.15 (s: 2H); 5.68 (s: 2H); 6.07 (mt: IH); 7.04 (d, J = 8.5 Hz: 2H); 7.19 (d, J = 8.5 Hz: 2H); from 7.30 to 7.55 (mt: 6H); 7.55 (t, J = 2 Hz: IH); 7.61 (s: IH); 7.91 (s: IH); 10.53 (unresolved peak: IH).
EI myz = 581 M
m/z = 464 [M - OCH2CH2Si(CH3)3]*
N-[5-(3-furvl)-6-f4-(phenvlmethoxv)pbenvl]-lH-indazol-3-vl1butanamide
10.3 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1 g of N-[5-(3-furyl)-6-[4-(phenylmethoxy)phenyI]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 75 cm' of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 75 cm of ethyl acetate are added and the organic phase is washed successively with 100 cm of saturated sodium hydrogen carbonate solution and with 75 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 1.4 g of crude product, which

is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 /zm; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is dried (90 Pa; 45°C) to give 530 mg of N-[5-(3-furyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 5.15 (s: 2H); 6.07 (broad s: IH); 7.02 (d, J = 8.5 Hz: 2H); 7.20 (d, J = 8.5 Hz: 2H); from 7.30 to 7.60 (mt: 6H); 7.31 (s: 2H); 7.86 (s: IH); 10.36 (unresolved peak: IH); 12.66 (unresolved peak: IH).
EI myz = 451 M-
m/z = 381 [M-CAHeOf-
N-f5-(3-furvl)-6-([4-hvdroxvphenvl)-lH-indazol-3-vl]butanamide
10 cm of trimethylsilyl iodide are added to 500 mg of N-[5-(3-furyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl)]butanamide, described previously, and the mixture is refluxed for 18 hours. 25 cm of methanol are added and the reaction medium is refluxed for 10 minutes and is then concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 75 cm of ethyl acetate and 50 cm of tetrahydrofuran and the organic phase is then washed with 2x100 cm' of 10% sodium thiosulphate solution and then with 75 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure to give 950 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of siUca gel (particle size 40-60 fim; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 5 cm of ethyl acetate, filtered off, washed with 1 cm of ethyl acetate and then with 20 cm of

diethyl ether and dripfl (90 Pa; 45°C) to give lOmg of N-[5-(3-furyl)-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butanainide in the form of a white powder melting at 185°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.97 (t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 6.07 (broad s: IH); 6.75 (d, J = 8.5 Hz: 2H); 7.06 (d, J = 8.5 Hz: 2H); 7.27 (broad s: 2H); 7.52 (mt: IH); 7.83 (s: IH); from 9.40 to 9.65 (unresolved peak: IH); 10.33 (unresolved peak: IH); from 12.50 to 12.75 (unresolved peak: IH).
DCI m/z = 362 [M+H]*
EXAMPLE 100
N-f5-(4-ethvlphenvl)-6-f4-(phenvlmethoxv)phenvn-l-[[2-(trimethvlsilvI)ethoxv1-methvn-lH-indazol-B-vllbutanamide
379 mg of 4-ethylphenylboronic acid, 428 mg of sodium carbonate in 30 cm' of water, and 259 mg of tetrakis(triphenylphosphine)palladium are added to 1 g of N-[5-bromo-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, prepared in Example 63, in lOOcm of dioxane, and the mixture is refluxed for 18 hours. 100 cm of ethyl acetate and 100 cm of water are added and the reaction medium is filtered through a sinter funnel packed with Celite. The organic phase is separated out after settling of the phases has taken place, washed successively with 75 cm of water and with 75 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa; 50°C) to give 1.7 g of an oil, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 850 mg of N-[5-(4-ethylphenyl)-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butan-amide in the form of grey crystals.

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): -0.07 (s: 9H); 0.84 (t, J = 8 Hz: 2H); 0.94 (t, J = 7.5 Hz: 3H); 1.18 (t, J = 7.5 Hz: 3H); 1.65 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 2.58 (q, J = 7.5 Hz: 2H); 3.57 (t, J = 8 Hz: 2H); 5.10 (s: 2H); 5.70 (s: 2H); 6.93 (d, J = 8.5 Hz: 2H); 7.02 (d, J = 8.5 Hz: 2H); 7.09 (d, J = 8.5 Hz: 2H); 7.11 (d, J = 8.5 Hz: 2H); from 7.30 to 7.50 (mt: 5H); 7.63 (s: IH); 7.82 (s: IH); 10.50 (unresolved peak: IH).
EI ns/z = 619 M-
m/z = 5 02 [M - OCH2CH2Si(CH3)3]*
m/z = 91 [CfiHsCHzf
N-f5-(4-ethvlphenvl)-6-f4-(phenvlmethoxv)phenvl1-lH-iDdazol-3-vI1butanamide
8.3 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofliran are added to 850 mg of N-[5-(4-ethylphenyI)-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 50 cm of tetrahydrofliran, and the mixture is refluxed for 18 hours; after cooling, 75 cm of ethyl acetate are added and the organic phase is washed successively with 2x100 cm of saturated sodium hydrogen carbonate solution and with 75 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 1.5 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 m; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is dried (90 Pa; 45°C) to give 660 mg of N-[5-(4-ethylphenyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide in the form of grey crystals.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.95 (t, J - 7.5 Hz: 3H); 1.17 (t, J = 7.5 Hz: 3H); 1.65 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 2.58 (q, J = 7.5 Hz: 2H);

5.08 (s: 2H); 6.90 (d, J = 8.5 Hz: 2H); 7.00 (d, J = 8.5 Hz: 2H); 7.08 (d, J = 8.5 Hz: 4H); from 7.30 to 7.50 (mt: 5H); 7.34 (s: IH); 7.76 (s: IH); 10.36 (unresolved peak: IH); 12.66 (unresolved peak: IH).
EI m/z = 489 M'
m/z = 419 [M-C4CH60f
N-r5-f4-ethvlpheDvl)-6-(4-hvdroxvphenvl)-lH-iDdazol-3-vHbutanamide
10 cm of trimethylsilyl iodide are added to 600 mg of N-[5-(4-ethylphenyl)-6-[4-(phenylinethoxy)phenyl]-lH-indazol-3-yl]butanamide, described previously, and the mixture is refluxed for 18 hours. 30 cm of methanol are added and the reaction medium is refluxed for 5 minutes and then concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 100 cm of ethyl acetate and the organic phase is washed with 2x100 cm of 10% sodium thiosulphate solution and then with 75 cm' of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure to give 650 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2kPa; 50°C); the residue is taken up in 15 cm' of diisopropyl ether, filtered off washed with 5 cm of ethyl acetate and then with 10 cm' of diisopropyl ether, and dried (90 Pa; 45°C) to give 180 mg of N-[5-(4-ethylphenyl)-6-(4-hydroxyphenyl)-lH-indazol-3-yl]-butanamide in the form of cream-coloured crystals melting at 225°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.17 (t, J = 7.5 Hz: 3H); 1.65 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 2.58 (q, J = 7.5 Hz: 2H); 6.63 (d, J - 8.5 Hz: 2H); 6.95 (d, J = 8.5 Hz: 2H); 7.00 (d, J = 8.5 Hz: 2H); 7.08 (d, J

= 8.5 Hz: 2H); 7.31 (s: IH); 7.74 (s: IH); 9.36 (unresolved peak: IH); 10.35 (broad s: IH); 12.61 (unresolved peak: IH).
EXAMPLE 101
N-f5-(3-pvridvl)-6-f4-(phenvimethoxv)phenvn-l-ff2-(trimethvlsilvl)ethoxv]-inetbvl1-lH-indazol-3-vnbutanamide
371 mg of 3-pyridyldiethylborane, 428 mg of sodium carbonate in 30 cm' of water, and 258 mg of tetrakis(triphenylphosphine)palladium are added to 1 g of N-[5-bromi6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, prepared in Example 63, in 100 cm of dioxane, and the mixture is refluxed for 18 hours. 100 cm' of ethyl acetate and 100 cm' of water are added and the reaction medium is filtered through a sinter funnel packed with Celite. The organic phase is separated out after settling of the phases has taken place, washed successively with 75 cm' of water and with 75 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa; 50°C) to give 1.6 g of an oil, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 700 mg of N-[5-(3-pyridyl)-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl])-lH-indazol-3-yl]butanamide in the form of a yellow oil.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.05 (s: 9H); 0.85 (t, J -8 Hz: 2H); 0.96 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.58 (t, J = 8 Hz: 2H); 5.11 (s: 2H); 5.73 (s: 2H); 6.96 (d, J = 8.5 Hz: 2H); 7.10 (d, J - 8.5 Hz: 2H); from 7.30 to 7.55 (mt: 5H); 7.31 (broad dd, J = 7.5 and 5 Hz: IH); 7.50 (ddd, J = 7.5 - 2.5 and 2 Hz: IH); 7.72 (s: IH); 7.92 (s: IH); 8.31 (broad d, J = 2.5 Hz: IH); 8.43 (dd, J = 5 and 2 Hz: IH); 10.57 (unresolved peak: IH).
EI m/z = 592 M'

m/z = 475 [M - OCH2CH2Si(CH3)3]
N-[5-(3-pvridvl)-6-f4-(pheDvlniethoxv)phenvl1-lH-indazol-3-vl1butananiide
7.1 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 700 mg of N-[5-(3-pyridyl)-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 50 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 75 cm' of ethyl acetate are added and the organic phase is washed successively with 2x75 cm of saturated sodium hydrogen carbonate solution and then with 50 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 850 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /Ltm; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is dried (90 Pa; 45°C) to give 460 mg of N-[5-(3-pyridyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yI]butanamide in the form of cream-coloured crystals.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 5.08 (s: 2H); 6.93 (d, J = 8.5 Hz: 2H); 7.09 (d, J = 8.5 Hz: 2H); 7.29 (broad dd, J = 7.5 and 4.5 Hz: IH); from 7.30 to 7.55 (mt: 6H); 7.40 (s: IH); 7.86 (s: IH); 8.28 (broad d, J = 2 Hz: IH); 8.41 (dd, J - 4.5 and 2 Hz: IH); 10.42 (unresolved peak: IH); 12.76 (unresolvedpeak: IH).
EI m/z = 462 M
m/z = 392 [M - C4CH60]
N-[5-(3-pvridvn-6-r4-hvdroxvphenvl)-lH-iDdazol-3-vl1butanamide

10 cm of trimethylsilyl iodide are added to 460 mg of N-[5-(3-pyridyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide, described previously, and the mixture is refluxed for 18 hours. The insoluble material is filtered off, washed with 2x20 cm of diethyl ether and taken up in 50 cm of tetrahydrofuran and 25 cm of ethyl acetate, and the organic phase is washed with 2x100 cm"' of 10% sodium thiosulphate solution, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure to give 330 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume). The fi-actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 10 cm' of diisopropyl ether, filtered off, washed with 3x5 cm of diisopropyl ether, with 5 cm of ethyl acetate and then with 10 cm"' of diisopropyl ether and dried (90 Pa; 45°C) to give 90 mg of N-[5-(3-pyridyl)-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide in the form of cream-coloured crystals melting at 165°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.96 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 6.66 (d, J = 8.5 Hz: 2H); 6.96 (d, J = 8.5 Hz: 2H); 7.30 (dd, J = 7.5 and 4.5 Hz: IH); 7.38 (s: IH); 7.49 (dt, J - 7.5 and 2 Hz: IH); 7.85 (s: IH); 8.28 (d, J = 2 Hz: IH); 8.41 (dd, J = 4.5 and 2 Hz: IH); 9.46 (unresolved peak: IH); 10.45 (unresolved peak: IH); 12.74 (unresolved peak: IH).
EXAMPLE 102
N-f5-(2-furvl)-6-[4-(phenvImethoxv)phenvn-l-[[2-(trimethvlsilvl)ethoxv1methvll-lH-iDdazol-3-vl]butanamide
353mg of 2-furylboronic acid, 624 mg of sodium carbonate in 25 cm' of water, and
311 mg of tetrakis(triphenylphosphine)palladium are added to 1.25 g of N-[5-bromo-
6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-
yljbutanamide, prepared in Example 63, in 125 cm of dioxane, and the mixture is
refluxed for 18 hours, 611 mg of 2-furan-2-yl-4,4,5,5-

tetramethyl[l,3,2]dioxaborolane are then added and heating is continued for 4 hours at reflux. 75 cm of ethyl acetate and 75 cm of water are added and the reaction medium is filtered through a sinter funnel packed with Celite. The organic phase is separated out after settling of the phases has taken place, washed with 75 cm of water, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 2 g of an oil, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (75/25 by volume). The fi-actions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 1.20 g of N-[5-(2-fiiryl)-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide in the form of a beige-coloured solid.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): -0.09 (s: 9H); 0.82 (t, J = 8 Hz: 2H); 0.97 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.43 (t, J = 7 Hz: 2H); 3.55 (t, J = 8 Hz: 2H); 5.17 (s: 2H); 5.61 (d, J = 3.5 Hz: IH); 5.68 (broad s: 2H); 6.38 (dd, J = 3.5 and 1.5 Hz: IH); 7.07 (d, J = 8.5 Hz: 2H); 7.19 (d, J = 8.5 Hz: 2H); 7.36 (broad t, J = 7.5 Hz: IH); 7.43 (broad t, J = 7.5 Hz: 2H); 7.50 (broad d, J = 7.5 Hz: 2H); 7.59 (s: IH); 7.61 (d, J = 1.5 Hz: IH); 8.20 (s: IH); 10.58 (unresolved peak: IH).
EI m/z = 581 M*-
m/z = 464 [M - OCH2CH2Si(CH3)3]
m/z = 91 [CeHjCH.f
N-[5-(2-furvl)-6-[4-(phenvlmethoxv)phenvl|-lH-indazol-3-vl]butanamide:
12.4 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1.20 g of N-[5-(2-furyl)-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 50 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 75 cm of ethyl acetate are added and the organic phase is washed successively with

2x50 cm"' of saturated sodium hydrogen carbonate solution and with 50 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 1.5 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is dried (90 Pa; 45°C) to give 750 mg of N-[5-(2-furyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 5.16 (s: 2H); 5.60 (d, J = 3.5 Hz: IH); 6.37 (dd, J = 3.5 and 1.5 Hz: IH); 7.06 (d, J = 8.5 Hz: 2H); 7.20 (d, J = 8.5 Hz: 2H); 7.28 (s: IH); 7.36 (broad t, J - 7.5 Hz: IH); 7.43 (broad t, J = 7.5 Hz: 2H); 7.51 (broad d, J = 7.5 Hz: 2H); 7.59 (broad s: IH); 8.15 (s: IH); 10.44 (unresolved peak: IH); 12.73 (unresolved peak: IH).
EI m/z = 451 M-
myz = 381 [M-C4CH60f-
N-[5-(2-furvl)-6-(4-hvdroxvphenvI)-lH-indazol-3-vl]butanamide
10 cm of trimethylsilyl iodide are added to 750 mg of N-[(5-(2-furyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl)]butanamide, described previously, and the mixture is refluxed for 18 hours. 40 cm of methanol are added and the reaction medium and the mixture is refluxed for 10 minutes and then concentrated to dryness under reduced pressure (2 kPa; 50°C). The residue is taken up in 75 cm of ethyl acetate and 50 cm of tetrahydrofuran and the organic phase is washed with 2x75 cm' of 10% sodium thiosulphate solution and then with 75 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and then concentrated to dryness

unaer reaucea pressure to give 700 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 /im; diameter 2.5 cm), eluting with a cyclohexane/ethyl acetate mixture (50/50 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 3 cm of ethyl acetate, filtered off, washed with 2 cm of ethyl acetate, then with 15 cm"' of diisopropyl ether and dried (90 Pa; 45°C) to give 10 mg of N-[5-(2-furyl)-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide in the form of white crystals melting at 190°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.43 (t, J = 7 Hz: 2H); 5.58 (d, J = 3.5 Hz: IH); 6.38 (dd, J = 3.5 and 1.5 Hz: IH); 6.80 (d, J = 8.5 Hz: 2H); 7.08 (d, J = 8.5 Hz: 2H); 7.26 (s: IH); 7.59 (broad s: IH); 8.14 (s: IH); 9.54 (unresolved peak: IH); 10.44 (unresolved peak: IH); 12.70 (unresolved peak: IH).
EXAMPLE 103
N-(5-bromo-6-chloro-7-nitro-lH-indazol-3-vl)butanamide:
418 mg of nitronium tetrafluoroborate are added to 4 g of N-(5-bromo-6-chloro-IH-indazol-3-yl)butanamide, described in Example 58, in 50 cm of acetonitrile at 0°C, and the mixture is stirred for 4 hours. 200 cm of ethyl acetate and 100 cm of saturated sodium hydrogen carbonate solution are added to the reaction medium. The organic phase is washed with 240 cm of saturated sodium hydrogen carbonate solution and then with 40 cm' of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 840 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 40-60 jttm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and then dried (90 Pa; 45°C) to give 20 mg of

N-(5-bromo-6-chloro-7-nitro-lH-indazol-3-yl)butanamide in the form of a yellow solid melting above 260°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.97 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.44 (t, J = 7 Hz: 2H); 8.70 (s: IH); 10.80 (unresolved peak: IH); 13.63 (unresolved peak: IH).
EI m/z = 360 M*-
m/z = 290 [M - CACHSO]-
EXAMPLE 104
N-(6J-difluoro-l-[[2-(tritnethvlsilvl)ethoxv1methvl1-lH-indazol-3-vl)butanainide
A solution of 1.1 g of N-(6,7-difluoro-lH-indazol-3-yl)butanamide, prepared in Example 40, in 180 cm of dimethylformamide is added dropwise over 3 hours to 1.65 g of sodium hydride at 60% in oil, in 50 cm of dimethylformamide. The reaction medium is concentrated to dryness under reduced pressure and taken up in
■J T
250 cm of ethyl acetate and 200 cm of water; the organic phase is separated out after settling of the phases has taken place, washed with 150 cm of water, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 fim; diameter 6 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2kPa; 50°C) to give 7.3 g of N-[6,7-difluoro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, Sin ppm): -0.09 (s: 9H); 0.82 (t, J = 8 Hz: 2H); 0.96 (t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 3.56 (t, J = 8 Hz: 2H); 5.66 (s: 2H); 7.22 (ddd, J = U - 9 and 7 Hz: IH); 7.69 (broad dd, J = 9 and 4.5 Hz: IH); 10.60 (unresolved peak: IH).

EI m/z = 369 M""'
m/z = 252 [M - OCH2CH2Si(CH3)3]*
m/z = 241 [M-CeHnOSif
N-(5-bromo-6,7-difluoro-l-fr2-(trimethvlsilvl)ethoxv]methvl1-lH-iDdazol-3-yDbutanamide
0.87 cm of pyridine is added to 1 g of N-[6,7-difluoro-l-[[2-
(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in
30 cm of chloroform, followed by addition of 0.56 cm of bromine, and the mixture
is refluxed overnight. 50 cm of dichloromethane and 50 cm of aqueous 10% sodium
thiosulphate solution are added to the reaction medium. After stirring for 10 minutes,
the insoluble material is removed by filtration on a sinter funnel and the organic phase
is washed with 50 cm of water and with 50 cm of saturated sodium chloride
solution. The organic phase is separated out after settling of the phases has taken
place, dried over magnesium sulphate, filtered and concentrated to dryness under
reduced pressure (2 kPa; 45°C). The crude product, 1.1 g, is purified by
chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle
size 40-60 /im; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture
(90/10 by volume). The fractions containing the expected product are combined and
evaporated under reduced pressure (2 kPa; 50°C). After drying (90 Pa; 45°C), 230 mg
of N-(5-bromo-6,7-difluoro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-
yl)butanamide are obtained in the form of a colourless oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.05. (s: 9H); 0.84 (t, J = 8 Hz: 2H); 0.95 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.43 (t, J - 7 Hz: 2H); 3.59 (t, J = 8 Hz: 2H); 5.69 (s: 2H); from 7.40 to 7.65 (mt: 5H); 7.82 (broad d, J = 7 Hz: IH); 10.64 (unresolved peak: IH).
EI m/z = 447 M*'
m/z = 330 [M - OCH2CH2Si(CH3)3]*

m/z = 319 [M-CsHi.OSif
N-(5-broino-6,7-difluoro-lH-indazol-3-vl)butanainide
9.4 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 700 mg of N-[5-bromo-6,7-difluoro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm' of tetrahydrofuran, and the mixture is refluxed for 18 hours; after cooling, 100 cm of ethyl acetate and 75 cm of saturated sodium hydrogen carbonate solution are added and the organic phase is then washed successively vi'ith 75 cm of saturated sodium hydrogen carbonate solution and with 75 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 850 mg of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 [im; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is taken up in 8 cm of diisopropyl ether, filtered off, washed with 3 cm of diisopropyl ether, dried under reduced pressure (90 Pa; 45°C) to give 200 mg of N-(5-bromo-6,7-difluoro-lH-indazol-3-yl)butanamide in the form of white crystals melting at 220°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 8.03 (dd, J = 6 and 2 Hz: IH); 10.58 (broad s: IH); 13.56 (unresolved peak: IH).
EXAMPLE 105
N-[6-(4-cvanophenvl)-l-U2-(trimethvlsilvl)ethoxv] methyl]-! H-indazol-3-yllbutanamide:
853 mg of 4-cyanophenylboronic acid, 15 cm of water, 1.0 g of sodium carbonate and 314 mg of tetrakis(triphenylphosphine)palladium are added to 500 mg of N-[6-

bromo-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, prepared as described in Example 51, in 100 cm' of dioxane. The reaction medium is then refluxed for 4 hours and diluted with 70 cm of ethyl acetate and 75 cm of water. The organic phase is separated out after settling of the phases has taken place and washed with 50 cm of distilled water and then with 2x50 cm of saturated aqueous sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 45°C). The residue obtained, 2.0 g, is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fi-actions containing the expected product are combined and evaporated under reduced pressure (2kPa; 50°C); 1.0 g of N-[6-(4-cyanophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide is obtained in the form of a yellow sohd melting at 136°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): -0.09 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.43 (t, J = 7 Hz: 2H); 3.58 (t, J = 8 Hz: 2H); 5.76 (s: 2H); 7.53 (broad d, ] = 8.5 Hz: IH); fi-om 7.95 to 8.05 (mt: 4H); 7.97 (d, J = 8.5 Hz: IH); 8.11 (s: IH); 10.55 (unresolved peak: IH).
N-[6-(4-cvanophenvl)-lH-iDdazol-3-vllbutanamide:
3.0 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 400 mg of N-[6-(4-cyanophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 10 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours. The reaction medium is diluted with 20 cm of ethyl acetate and the organic phase is washed successively with 20 cm of saturated sodium hydrogen carbonate solution, with 2x20 cm of water and with 20 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and then concentrated under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle

I

size 40-60 /im; diameter 3 cm), eluting with a methylene chloride/methanol gradient (100/0 to 98/2 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); 120 mg of N-[6-(4-cyanophenyl)-lH-indazol-3-yl]butanamide are obtained in the form of a solid melting at 242°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 7.42 (broad d, J = 9 Hz: IH); 7.74 (broad s: IH); 7.92 (d, J = 9 Hz: IH); 7.96 (s: 4H); 10.37 (unresolved peak: IH); 12.81 (unresolved peak: IH).
EXAMPLE 106
N-(6,7-difluoro-5-nitro-lH-iDdazol-3-vl)butanamide:
555 mg of nitronium tetrafluoroborate are added to a suspension of 500 mg of N-(6,7-difluoro-lH-indazoI-3-yl)butanamide, prepared in Example 40, in 30 cm of acetonitrile and cooled to 0°C. After reaction for 30 minutes, 50 cm of ethyl acetate and 50 cm of saturated sodium hydrogen carbonate solution are added to the reaction medium. The organic phase is separated out after settling of the phases has taken place, washed with 50 cm of water and 50 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 630 mg of a brown oil. The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined, evaporated under reduced pressure (2 kPa; 50°C) and dried (90 Pa, 45°C); to give 300 mg of N-(6,7-difluoro-5-nitro-lH-indazol-3-yl)butanamide in the form of yellow crystals melting at 255°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.96 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.45 (t, J = 7 Hz: 2H); 8.89 (dd, J = 6.5 and 2 Hz: IH); 10.94 (unresolved peak: IH); 14.05 (broad unresolved peak: IH).

EI m/z = 284 M'
m/z = 214 [M-C4CH60r
EXAMPLE 107
N-f6,7-difluoro-5-phenvl-l-f[2-(trimethvIsilvl)ethoxv1methvl1-lH-indazol-3-vUbutanamide
469 mg of phenylboronic acid, 760 mg of sodium carbonate in 30 cm"' of water and 379 mg of tetrakis(triphenylphosphine)palladium are added to 1.15 g of N-(5-bromo-6,7-difluoro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl)butanamide, prepared in Example 104, in 150 cm of dioxane, and the mixture is refluxed for 4 hours. The reaction medium is diluted with 100 cm' of ethyl acetate and 75 cm' of water and filtered through a sinter funnel packed with Celite. The organic phase is separated out after settling of the phases has taken place, washed with 75 cm' of water and with 75 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 2 g of crude product in the form of a black oil. The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (85/15 by volume). The fractions containing the expected product are combined, evaporated under reduced pressure (2 kPa; 50°C) and dried (90 Pa, 45°C); to give 1.1 g of N-[6,7-difluoro-5-phenyl-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide in the form of a yellow oil.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.05 (s: 9H); 0.84 (t, J = 8 Hz: 2H); 0.95 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.43 (t, J = 7 Hz: 2H); 3.59 (t, J = 8 Hz: 2H); 5.69 (s: 2H); from 7.40 to 7.65 (mt: 5H); 7.82 (broad d, J = 7 Hz: IH): 10.64 (unresolved peak: IH).
EI m/z = 445 M'
m/z = 328 [M - OCH2CH2Si(CH3)3]

m/z = 317 [M-CeHnOSif
N-(6J-difluoro-5-pbenvl-lH-indazol-3-vl)butaDamide
14.8 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 1.1 g of N-[6,7-difluoro-5-phenyl-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 50 cm' of tetrahydrofuran, and the mixture is refluxed for 18 hours; as the reaction is incomplete, a further 9.9 cm of tetrabutylammonium fluoride solution are added and refluxing is continued for 18 hours. Afler cooling, 100 cm of ethyl acetate and 75 cm of saturated sodium hydrogen carbonate solution are added; the organic phase is separated out after settling of the phases has taken place and washed with 50 cm' of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2.7 kPa; 50°C) to give 1.3 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 m; diameter 3.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the solid obtained is taken up in 20 cm of diisopropyl ether, filtered off on a sinter funnel and washed with 5 cm of ethyl acetate and 20 cm of diisopropyl ether, and then dried (90 Pa; 45°C) to give 340 mg of N-(6,7-difluoro-5-phenyl)-lH-indazol-3-yl)butanamide in the form of a white cottony solid melting at 224°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.95 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); from 7.40 to 7.60 (mt: 5H); 7.76 (broad d, J = 6 Hz: IH); 10.53 (unresolved peak: IH); from 13.00 to 13.90 (broad unresolved peak: IH).
EI m/z = 284 M'
m/z = 245 [M - C4CH60]-
EXAMPLE 108
5-Bromo-2-f[2-(trimethvlsilvI)ethoxvlmethoxvlpvridine

A solution of 2.6 g of 5-bromo-2-hydroxypyridine in 80 cm of dimethylformamide is added over 30 minutes to 717 mg of sodium hydride at 60 % in oil, in 50 cm of dimethylformamide, and the mixture is stirred for 1 hour at room temperature. The dimethylformamide is removed under reduced pressure and the residue is taken up in 75 cm' of ethyl acetate and 50 cm of water; the organic phase is separated out after settling of the phases has taken place, washed with 2x50 cm of water and 50 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness imder reduced pressure (2 kPa; 50°C) to give a yellow oil. The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 3.5 cm), elating with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 2.64 g of 5-bromo-2-[[2-(trimethylsilyl)ethoxy]methyl]pyridine in the form of a yellow oil, which is used without fiirther purification for the following test.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.02 (s: 9H); 0.89 (t, J = 8 Hz: 2H); 3.73 (t, J = 8 Hz: 2H); 5.49 (s: 2H); 6.89 (broad d, J = 8.5 Hz: IH); 7.96 (dd, J = 8.5 and 2.5 Hz: IH); 8.31 (broad d, J= 2.5 Hz: IH).
DCI m/z = 304 [M+H]
N-[6-r64[2-(trimethvlsilvl)ethoxv]methoxv]pvridvl-3-vll-l-[[2-(trimethvlsilvDethoxv]methvll-lH-indazol-3-vl1butanamide
1.19 g 'of 5-bromo-2-[[2-(trimethylsilyl)ethoxy]methoxy]pyridine, prepared previously, are added to 1 g of N-[6-(4,4,5,5-tetramethyl[l,3,2]dioxaborolan-2-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, prepared in Example 56, in 70 cm of dioxane, and 201 mg of tetrakis(triphenylphosphine)palladium and 646 mg of sodium carbonate in 10 cm of water are added to the pale yellow solution, and the mixture is refluxed for 3 hours. The reaction medium is diluted with 75 cm' of ethyl acetate and 50 cm"' of water and is filtered through a sinter funnel packed with Celite. The organic phase is separated out after settling of the phases has taken

place, washed with 50 cm of water, with 50 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 0.45 g of N-[6-[6-[[2-(trimethylsilyl)-ethoxy]methoxy]pyridyl-3-yl]-1 [[2(trimethylsilyl)ethoxy]methyl]-1 H-indazol-3-yljbutanamide in the form of an orange-coloured lacquer.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): -0.09 (s: 9H); 0.00 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.93 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 3.56 (t, J = 8 Hz: 2H); 3.79 (t, J = 8 Hz: 2H); 5.59 (s: 2H); 5.74 (broad s: 2H); 7.02 (d, J = 8.5 Hz: IH); 7.47 (broad d, J = 8.5 Hz: IH); 7.92 (d, J = 8.5 Hz: IH); 8.00 (broad s: IH); 8.18 (dd, J = 8.5 and 2.5 Hz: IH); 8.61 (d, J = 2.5 Hz: IH); 10.53 (unresolved peak: IH).
EI m/z = 556 M'
m/z = 439 [M - OCH2CH2Si(CH3)3]
m/z = 73 [Si(CH3)3]
N-[6-(6-hvdroxvpvrid-3-vl)-lH-iDdazol-3-vl]butanamide
15.7 cm' of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are
added to 0.73 g of N-[6-[6-[[2-(trimethylsilyl)ethoxy]methoxy]pyridyl-3-yl]-
l[[2(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described
previously, in 15 cm of tetrahydrofuran, and the mixture is refluxed for 18 hours; as the reaction is incomplete, refluxing is continued for 18 hours. After cooUng, 60 cm' of ethyl acetate are added and the organic phase is washed with 30 cm of saturated sodium hydrogen carbonate solution and then with 2x30 cm of water and with 30 cm of saturated sodium chloride solution. The organic phase is separated out after

settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C) to give 1.3 g of crude product, which is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3 cm), eluting with a methylene chloride/methanol gradient (95/5 to 90/10 by volume). The fiactions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 270 mg of product which is still impure, which is repurified by HPLC (X Terra column; Cig, 5/im; length 100 mm, diameter 30 mm, eluent: methanol/water (70/ 30 by volume) containing 0.05% trifluoroacetic acid; flow rate 20 cm/min). After concentrating the fractions containing the expected product and drying (90 Pa; 45°C), 40 mg of N-[6-(6-hydroxypyrid-3-yl)-lH-indazol-3-yl]butanamide are obtained in the form of a solid melting above 260°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 6.47 (d, J = 9.5 Hz: IH); 7.25 (broad d, J = 9 Hz: IH); 7.52 (broad s: IH); 7.77 (d, J = 2.5 Hz: IH); 7.81 (d, J = 9 Hz: IH); 7.90 (dd, J = 9.5 and 2.5 Hz: IH); 10.30 (broad s: IH); 11.83 (unresolved peak: IH); 12.62 (unresolved peak: IH).
EI m/z = 296 M
m/z = 226 [M - C4CH60]*-
EXAMPLE 109
N-[6-(2,2-diphenvl-benzo[1.3]dioxol-5-vl)-l-[[2-(trimethvlsilvnethoxv]methoxvl-lH-indazol-3-vl]butanamide
1.38 g of 5-bromo-2,2-diphenyl-l,3-benzodioxole, prepared according to European patent EP303 172A2, are added to 1.2 g of N-[6-(4,4,5,5-tetramethyl[l,3,2]dioxaborolan-2-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, prepared in Example 56, in 80 cm of dioxane, and 242 mg of tetrakis(triphenylphosphine)palladium and 688 mg of sodium carbonate in 10 cm

of water are added to the pale yellow solution, and the mixture is re fluxed for 4 hours. The reaction medium is diluted with 50 cm of ethyl acetate and 50 cm of water, and then filtered through a sinter funnel packed with Celite. The filtrate is separated by settling and the organic phase is washed with 50 cm' of water and with 50 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /im; diameter 4.5 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The firactions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); 840 mg of N-[6-(2,2-diphenyl-l,3-benzodioxole-5-yl)-l-[[2-(trimethylsilyl)ethoxy]-methoxy]-lH-indazol-3-yl]butanamide are obtained in the form of a sticky orange-coloured solid.
EI m/z = 605 M-
m/z = 488 [M - OCH2CH2Si(CH3)3]
N-f6-(3,4-dihvdroxv-phenvl)-lH-indazol-3-vl]butanamide trifluoroacetate
10 cm of trimethylsilyl iodide are added to 0.8 g of N-[6-(2,2-diphenyl-l,3-benzodioxole-5-yl)-l-[[2-(trimethylsilyl)ethoxy]methoxy]-lH-indazol-3-yljbutanamide, prepared previously, and the mixture is refluxed for 3 hours. 50 cm' of methanol are then added cautiously and refluxing is continued for 15 minutes. The reaction medium is concentrated to dryness under reduced pressure (2 kPa; 50°C) and taken up in 50 cm of ethyl acetate and 100 cm of 10% sodium thiosulphate solution; the insoluble material formed is removed by filtration and the filtrate is separated by settling. The organic phase is dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure. The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of siUca gel (particle size 40-60 /zm; diameter 3 cm), eluting with a methylene chloride/methanoiy7N aqueous ammonia gradient (97/3 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give

150 mg of product which is still impure, which is repurified by HPLC (X Terra column; Cig, Sfixn; length 100 mm, diameter 30 mm, eluent: acetonitrile/water gradient (15/85 to 45/55 by volume) containing 0.05% trifluoroacetic acid; flow rate 20 cmVmin). After concentrating the fractions containing the expected product and drying (90 Pa; 45°C), 30 mg of N-[6-(3,4-dihydroxy-phenyl)-lH-indazol-3-yljbutanamide trifluoroacetate are obtained in the form of a brown powder melting at 236°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, § in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 6.85 (d, J =8 Hz: IH); 7.01 (dd, J = 8 and 2 Hz: IH); 7.10 (d, J = 2 Hz: IH); 7.26 (broad d, J = 9 Hz: IH); 7.46 (broad s: IH); 7.79 (d, J = 9 Hz: IH); from 8.80 to 9.30 (broad unresolved peak: 2H); 10.29 (broad s: IH); 12.57 (unresolved peak: IH).
EI m/z = 311 M-
m/z = 241 [M-C4CH60]-
EXAMPLE 110
N-f6-(l,3-benzodioxol-5-vl)-l-[[2-(trimethvlsilvl)ethoxv]methoxvl-lH-indazol-3-vDbutanamide
677 g of l,3-benzodioxol-5-yl-boronic acid, 1.24g of caesium fluoride, then 13.5 mg of palladium acetate and finally 31 mg of 2-dicyclohexylphosphine-2-(N,N-dimethylamino)biphenyl are added to 1 g of N-[6-chloro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, described previously, in 30 cm of dioxane. The reaction mixture is then heated at about 94°C for 15 hours and is then allowed to return to 19°C and filtered through a sinter funnel packed with Celite. The product is rinsed with ethyl acetate and the organic phase is then dried over magnesium sulphate and filtered, and the filtrate is evaporated under reduced pressure (2 kPa; 45°C). The residue is purified by chromatography under an argon pressure of 50 kPa, on a column of sihca gel (particle size 15-40 pim; diameter 3 cm).

eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume); the fractions
containing the expected product are combined and evaporated under reduced pressure
(2kPa; SOT). 620 mg of N-[6-(l,3-benzodioxol-5-yl)-l-[[2-
(trimethylsilyl)ethoxy]methoxy]-lH-indazol-3-yl]butanamide are obtained in the form of a sticky pale yellow soHd.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): -0.09 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.41 (t, J = 7 Hz: 2H); 3.56 (t, J = 8 Hz: 2H); 5.74 (broad s: 2H); 6.10 (s: 2H); 7.05 (d, J = 8 Hz: IH); 7.27 (dd, J = 8 and 2 Hz: IH); 7.37 (d, J = 2 Hz: IH); 7.42 (broad dd, J = 9 and 1.5 Hz: IH); 7.86 (d, J = 9 Hz: IH); 7.89 (broad s: IH); 10.45 (unresolved peak: IH).
EI m/z = 493 M'
m/z = 336 [M - OCH2CH2Si(CH3)3]*
m/z = 325 [M-C6Hi20Sif
N-f6-(l,3-benzodioxol-5-vl)-lH-indazol-3-vI1butanamide
2 cm of tetrabutylammonium fluoride as a IM solution in tetrahydrofuran are added to 600mg of N-[6-(benzodioxol-5-yl)-l-[[2-(trimethylsilyl)ethoxy]methoxy]-lH-indazol-3-yl]butanamide, described previously, in 12 cm of tetrahydrofuran. The medium is then maintained at 67°C for 16 hours. The mixture is then allowed to return to 19°C and 60 cm of ethyl acetate are added, after which it is washed with 30 cm' of saturated aqueous sodium hydrogen carbonate solution and then with 2x30 cm of distilled water and finally with 30 cm of saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulphate, filtered through a sinter furmel and evaporated under reduced pressure (2 kPa; 45°C). The residue obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 15-40 jxm; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume) and collecting 15 cm' fi-actions. The fi-acfions containing the expected product are combined and evaporated under

reduced pressure (2 kPa; 50°C). After drying (90 Pa; 50°C), 260 mg of N-[6-(l,3-benzodioxol-5-yl)-lH-indazol-3-yl]butanamide are obtained in the form of a white soHd mehing at 240T.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.68 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 6.09 (s: 2H); 7.03 (d, J = 8 Hz: IH); 7.21 (dd, J = 8 and 2 Hz: IH); 7.30 (broad dd, J = 9 and 1.5 Hz: IH); 7.31 (d, J = 2 Hz: IH); 7.55 (broad s: IH); 7.82 (d, J = 9 Hz: IH); 10.31 (broad s: IH); 12.63 (broad s: IH).
EI m/z = 323 M'
m/z = 253 [M - C4CH60]*-
EXAMPLE 111
N-|7-fluoro-5-nitro-6-f2-(pheDvlethvl)aminol-lH-indazol-3-vl]butanamide
1.11 cm of phenethylamine are added to a solution of 500mg of N-(6,7-difluoro-5-nitro-lH-indazoI-3-yl)butanamide, prepared in Example 106, in 10 cm of dimethylsulphoxide, and the mixture is refluxed for 1 hour. The reaction medium is taken up in 50 cm of ethyl acetate and the organic phase is washed with 4x35 cm of saturated sodium chloride solution. The organic phase is separated out after setthng of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure to give 1.5 g of oil. The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 15-40 /im; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (70/30 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 30 cm of dieth\'I ether, filtered off on a sinter funnel and washed with 2x20 cm of diethyl ether, and then dried (90 Pa; 50°C) to give 360 mg of N-[7-fluoro-5-nitro-6-[(phenylethyl)amino]-lH-indazol-3-yl]butanamide in the form of brown crystals melting at 2\2°C.

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.96 (t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 2.93 (t, J = 7 Hz: 2H); 3.76 (mt: 2H); 7.03 (mt: IH); from 7.15 to 7.40 (mt: 5H); 8.85 (s: IH); 10.73 (broad s: IH); 13.10 (unresolved peak: IH).
EI m'z = 385 M*
m/z = 294 [M - CH2C6H5]*
m/z = 224 [294-C4CH6O]*
EXAMPLE 112
N-(7-fluoro-5-nitro-6-niorpholiDO-lH-iDdazol-3-vl)butanamide
The process is performed as in Example 110, starting with 500 mg of N-(6,7-difluoro-5-nitro-lH-indazol-3-yl)butanamide, prepared in Example 106, 10 cm of dimethylsulphoxide and 0.77 cm' of morpholine, and the mixture is refluxed for 1 hour. The reaction medium is taken up in 75 cm of ethyl acetate and the organic phase is washed with 2x75 cm" of water and 50 cm of saturated sodium chloride solution. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure to give 1 g of a brown solid. The crude product is purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 15-40 /xm; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 30 cm of diethyl ether, filtered off on a sinter funnel and washed with 220 cm of diethyl ether, and then dried (90 Pa; 50°C) to give 280 mg of N-(7-fluoro-5-nitro-6-morpholino-lH-indazol-3-yl)butanamide in the form of brown crystals melting at 250°C

1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.96 (t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 3.16 (mt: 4H); 3.69 (t, J = 4 Hz: 4H); 8.30 (broad s: IH); 10.75 (unresolved peak: IH); 13.68 (unresolved peak: IH).
EI m/z-351 M*-
m/z = 334 [M - OH]
EXAMPLE 113
N-(7-fluoro-5-amiDO-6-morpholiDO-lH-iDdazo]-3-vl)butanamide
200 mg of 3% palladium-on-charcoal and 1 g of ammonium formate are added to a solution of 1.1 g of N-(7-fluoro-5-nitro-lH-indazol-3-yl)butanamide, prepared in Example 112, in 50 cm of methanol, and the mixture is stirred at room temperature for 18 hours. The reaction medium is filtered through a sinter funnel packed with Celite and concentrated to dr\Tiess under reduced pressure (2 kPa; 50°C), then purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 15-40 m; diameter 3 cm), eluting with a methylene chloride/methanol mixture (97.5/2,5 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 20 cm' of ethyl acetate, filtered off on a sinter funnel and washed with 25 cm of eth\'l acetate and with 10 cm of diethyl ether, then dried (90 Pa; 50°C) to give 306 mg of N-(7-fluoro-5-amino-6-morpholino-lH-indazol-3-yl)butanamide in the form of white crystals melting at 180°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.97 (t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.34 (broad t, J = 7 Hz: 2H); 3.04 (broad unresolved peak: 4H); 3.77 (unresolved peak: 4H); 4.95 (broad s: 2H); 6.55 (s: IH); 10.03 (unresolved peak: IH); 13.57 (unresolved peak: IH).
EI m/z = 321 M-
m/z = 306 [M - CE3T

EXAMPLE 114
N-(5-bromo-7-fluoro-6-morpholino-lH-iDdazol-3-vDbutanamide
A solution of 213 mg of sodium nitrite in 9 cm of water is added dropwise to a suspension, cooled to 5°C, of 900 mg of N-(5-amino-7-fluoro-6-morpholino-lH-indazol-3-yl)butanamide, prepared as previously, in 9 cm' of water and 0.94 cm of 48% hydrobromic acid, and the mixture is stirred at 0°C. This suspension is added portionwise to a refluxing solution of 482 mg of cuprous bromide, 4.5 cm of water and 4.5 cm of 48% hydrobromic acid. Refluxing is continued for 45 minutes and the reaction medium is then filtered through a sinter funnel, dissolved in 75 cm' of tetrahydrofuran and purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 15-40 /im; diameter 3 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and the residue is taken up in 10 cm of ethyl acetate, filtered off and washed with 2x5 cm of ethyl acetate and with 20 cm of diisopropyl ether. After filtration and drying 90 Pa; 45°C), 60 mg of N-(5-bromo-7-fluoro-6-morphohno-lH-indazol-3-yl)butanamide are obtained in the form of white crystals melting at 240°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, S in ppm): 0.96 (t, J - 7.5 Hz: 3H); 1.66 (mt: 2H); 2.38 (t, J = 7 Hz: 2H); 3.16 (unresolved peak: 4H); 3.76 (unresolved peak: 4H); 7.96 (s: IH); 10.48 (unresolved peak: IH); 13.20 (unresolved peak: IH).
EI m/z = 384 M'
m/z = 314 [M-C4CH60]'-
EXAMPLE115
N-F7-fluoro-6-(trifluoromethvl)-lH-indazol-3-vl]butanamide
1.0 cm of butyryl chloride is added to 2.1 g of 7-fluoro-6-(trifluoromethyl)-lH-indazole-3-amine, prepared as in patent WO 02/22608, in 20 cm' of pyridine, after

cooling to about 3°C, and the mixture is then left at room temperature for 76 hours. The reaction medium is concentrated under reduced pressure (2 kPa; 40°C) and the residue is taken up in 50 cm of ethyl acetate and 20 cm' of water. The organic phase is washed with 2x20 cm' of distilled water and then with 20 cm of saturated aqueous sodium chloride solution. After drying over magnesium sulphate, filtration and concentration under reduced pressure (2 kPa; 40°C), the residue obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 nm; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture (60/40 by volume). The fractions containing the expected product are combined and then evaporated under reduced pressure (2 kPa; 40°C); after drying (90 Pa; 40°C), 875 mg of N-[7-fluoro-6-(trifluoromethyl)-lH-indazol-3-yl)butananiide are obtained in the form of a pink solid melting at 220°-222°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.98 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.42 (t, J = 7 Hz: 2H); 7.31 (dd, J = 8.5 and 6 Hz: IH); 7.82 (broad d, J = 8.5 Hz: IH); 10.59 (unresolved peak: IH); from 13.50 to 14.20 (broad unresolved peak: IH).
EI m/z = 289 M'
m/z = 270 [M - F]
m/z = 219 [M-C4CH6O]*
EXAMPLE 116
6-chloro-4.5.7-trifluoro-lH-indazole-3-amine:
1.14 cm of hydrazine monohydrate are added to 2.0 g of 4-bromo-2,3,5,6-tetrafluorobenzonitrile in 40 cm' of absolute ethanol. The mixture is refluxed for 18 hours, 30 cm of distilled water are then added and the reaction medium is concentrated under reduced pressure (2 kPa; 50°C). The residue is taken up in 100 cm of ethyl acetate and 10 cm of water, and the organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered

and concentrated to dryness under reduced pressure (2 kPa; 50C); after drying (90 Pa; 40°C), 2.1 g of 6-chloro-4,5,7-trifluoro-lH-indazole-3-amine are obtained in the form of a beige-coloured solid.
H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 5.52 (s: 2H); from 12.10 to 12.90 (broad unresolved peak: IH).
EI m/z = 265 M'
m/z = 236 [M - KN2T
m/z =186 [M-Br]*
N-(6-bromo-4.5,7-trifluoro-lH-indazol-3-vl)butanamide
0.82 cm of butyryl chloride is added to 2.1 g of 6-chloro-4,5,7-trifluoro-lH-indazole-3-amine, prepared previously, in 20 cm of pyridine, after cooling to about 3°C, and the mixture is then left at room temperature for 76 hours. The reaction medium is concentrated under reduced pressure (2 kPa; 40°C) and the residue is taken up in 100 cm of ethyl acetate, 100 cm' of tetrahydrofuran and 40 cm of water. The organic phase is washed with 2x40 cm' of distilled water and then with 40 cm of saturated aqueous sodium chloride solution. After drying over magnesium sulphate, filtration and concentration under reduced pressure (2 kPa; 40°C), the residue obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 jLtm; diameter 4 cm), eluting with a cyclohexane/ethyl acetate mixture (80/20 by volume). The fractions containing the expected product are combined and then evaporated under reduced pressure (2 kPa; 40°C); after drying (90 Pa; 40°C), 0.53 g of N-(6-bromo-4,5,7-trifluoro-lH-indazol-3-yl)butanamide is obtained in the form of a pink solid melting at 255°-257°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 6 in ppm): 0.97 (t, J = 7.5 Hz: 3H); 1.66 (mt: 2H); 2.36 (t, J = 7 Hz: 2H); 10.26 (unresolved peak: IH); from 13.50 to 14.40 (broad unresolved peak: IH).

EI m/z = 335 M'
m/z = 265 [M - C4CH60]*-
EXAMPLE 117
N-f6-(6-aminopvrid-3-vl)-l-ff2-(trimethvlsilvnethoxv1methvl1-lH-iDdazol-3-vllbutanamide
0.45 g of 2-amino-5-bromopyridine is added to 1.0 g of N-[6-(4,4,5,5-tetramethyl[ 1,3,2]dioxaborolan-2-yl)-1 -[[2-(trimethylsilyl)ethoxy]methyl]-1H-indazol-3-yl]butananiide, prepared in Example 56, in 50 cm of dioxane, 142 mg of dichloro[ 1,1 '-bis(diphenylphosphino)ferrocene]palladium, dichloromethane [lacuna] and 646 mg of sodium carbonate in 10 cm of water are added to the pale yellow solution, and the mixture is refluxed for 2 hours. The reaction medium is diluted with 50 cm of ethyl acetate and 50 cm of water, and then filtered through a sinter funnel packed with Celite. The filtrate is separated by settling and the aqueous phase is washed with 2x50 cm of saturated sodium chloride solution, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product obtained is purified by chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3 cm), eluting with a cyclohexane/ethyl acetate gradient mixture (70/30 to 50/50 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) to give 0.53 mg of N-[ 6-(6-amino-pyrid-3-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide difluoroacetate in the form of a sohd melting at 138°C
IR NMR spectrum (300 MHz, (CD3)2SO-d6, Sin ppm): -0.09 (s: 9H); 0.83 (t, J = 8 Hz: 2H); 0.97 (t, J = 7.5 Hz: 3H); 1.67 (mt: 2H); 2.39 (t, J = 7 Hz: 2H); 3.55 (t, J = 8 Hz: 2H); 5.70 (s: 2H); 6.12 (s: 2H); 6.57 (d, J = 9 Hz: IH); 7.37 (dd, J = 8.5 and 1.5 Hz: IH); fi-om 7.80 to 7.90 (mt: 3H); 8.37 (d, J = 2 Hz: IH); 10.43 (unresolved peak: IH).

EI m/z = 425 M'
m/z = 308 [M - OCH2CH2Si(CH3)3]*
m/z = 297 [M - CeHnOSi]
N-f6-(6-aniinopvrid-3-vl)-lH-iDdazoI-3-vllbutanamidedifluoroacetate
3.8 cm of tetrabutylamonium fluoride as a IM solution in tetrahydrofuran are added to 0.8 g of N-[6-(6-aminopyrid-3-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide, prepared previously, in 13 cm of tetrahydrofuran, and the mixture is refluxed for 6 hours, followed by addition of 50 cm of ethyl acetate and 25 cm of saturated sodium hydrogen carbonate solution. The organic phase is separated out after settling of the phases has taken place, washed with 25 cm of water, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure. The crude product is purified by HPLC (X Terra column; Cig, 5/im; length 50 mm, diameter 21 mm, eluent: acetonitrile/water gradient (5/95 to 95/5 by volume) containing 0.05% trifluoroacetic acid; flow rate 20 cm/min). After concentrating the fractions containing the expected product, a solid is obtained, which is taken up in 10 cm' of diisopropyl ether and 2 cm' of acetonitrile, filtered off, washed with 5 cm of diisopropyl ether and dried (90 Pa; 45°C) to give 18 mg of N-[6-(6-amino-pyrid-3-yl)-lH-indazol-3-yl]butanamide difluoroacetate in the form of white crystals melting at 230-235°C.
1H NMR spectrum (300 MHz, (CD3)2SO-d6, 5 in ppm): 0.99 (t, J = 7.5 Hz: 3H); 1.69 (mt: 2H); 2.40 (t, J = 7 Hz: 2H); 7.05 (d, J = 9.5 Hz: IH); 7.33 (dd, J = 8.5 and 1.5 Hz: IH); 7.65 (broad s: IH); 7.79 (unresolved peak: 2H); 7.90 (d, J = 8.5 Hz: IH); 8.31 (dd, J = 9.5 and 1.5 Hz: IH); 8.36 (d, J = 1.5 Hz: IH); 10.37 (broad s: IH); 12.79 (unresolved peak: IH).
EI m/z = 295 M
m/z = 225 [M - C4CH60]*-

m/z = 43 [CsHy]
EXAMPLE 118
2-chloro-N-(6.7-difluoro-lH-iDdazol-3-vl)acetaniide
5.0 g of chloracetic anhydride are added to 5 g of 6,7-difluoro-lH-mdazole-3-amine, prepared in Example 40, in 300 cm of toluene, and the mixture is refluxed for 18 hours. The precipitate formed is concentrated to dryness under reduced pressure (2 kPa; 50°C), and the residue is then purified by chromatography under an argon pressure of 50 kPa, on a column of siHca gel (particle size 40-60 /im; diameter 4.5 cm), eluting with a dichloromethane/methanol mixture (98/2 by volume). The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C) and then dried (90 Pa; 45°C) to give 8.5 g of 2-chloro-N-(6,7-difluoro-lH-indazol-3-yl)acetamide in the form of a cream-coloured crystalline mass.
1H NMR spectrum (400 MHz, (CD3)2SO-d6, at a temperature of 353 K, 6 in ppm): 4.37 (s: 2H); 7.11 (ddd, J = 8.5 - 7.5 and 5 Hz: IH); 7.67 (broad dd, J = 7.5 and 3 Hz: IH); 10.65 (broads: IH); 13.30 (unresolvedpeak: IH).
EI m/z = 245 M'
m/z =169 [M-CjHOClf-
m/z =140 [169-HN2f
N-(6.,7-difluoro-lH-indazol-3-vl)-l-piperidineacetamide
The process is performed as in Example 75, starting with 8.5 g of 2-chloro-N-(6,7-difluoro-lH-indazol-3-yl)acetamide, 200 cm of acetonitrile and 8.8 cm of piperidine. The reaction medium is refluxed for 1 hour, the precipitate formed is then filtered off on a sinter funnel and the crystals are taken up in 200 cm of ethyl acetate and 100 cm [lacuna]. The organic phase is separated out after settling of the phases has taken place, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2 kPa; 50°C). The crude product is purified by

chromatography under an argon pressure of 50 kPa, on a column of silica gel (particle size 40-60 /xm; diameter 3.5 cm), eluting with ethyl acetate. The fractions containing the expected product are combined and evaporated under reduced pressure (2 kPa; 50°C); the residue is recristallized from a mixture of 50 cm of cyclohexane and 16 cm of ethyl acetate, filtered off and dried (90 Pa; 45°C) to give 3.2 g of N-(6,7-difluoro-lH-indazol-3-yl)-l-piperidineacetamide in the form of white crystals melting at 158°C
1H NMR spectrum (300 MHz, (CD3)2SO-d6, Sin ppm): 1.42 (mt: 2H); 1.59 (mt: 4H); 2.52 (mt: 4H); 3.19 (s: 2H); 7.13 (ddd, J = 10.5 - 9 and 7 Hz: IH); 7.66 (broad dd, J = 9 and 4.5 Hz: IH); 10.14 (unresolved peak: IH); 13.42 (unresolved peak: IH).
DCI m/z - 295 [M+H]
The pharmaceutical compositions according to the invention consist of a compound of formula (I) or a salt of such a compound, in pure form or in the form of a composition in which it is combined with any other pharmaceutically compatible product, which may be inert or physiologically active. The medicinal products according to the invention may be used orally, parenterally, rectally or topically.
Solid compositions for oral administration that may be used include tablets, pills, powders (gelatin capsules or cachets) or granules. In these compositions, the active principle according to the invention is mixed with one or more inert diluents, such as starch, cellulose, sucrose, lactose or silica, under a stream of argon. These compositions may also comprise substances other than diluents, for example one or more lubricants such as magnesium stearate or talc, a colorant, a coating agent (for sugar coated tablets) or a varnish.
Liquid compositions for oral administration that may be used include pharmaceutically acceptable solutions, suspensions, emulsions, syrups and elixirs containing inert diluents such as water, ethanol, glycerol, plant oils or liquid oaraffm.

These compositions may comprise substances other than diluents, for example wetting agents, sweeteners, thickeners, flavorings or stabilizers.
The sterile compositions for parenteral administration may preferably be aqueous or nonaqueous solutions, suspensions or emulsions. Solvents or vehicles that may be used include water, propylene glycol, a polyethylene glycol, plant oils, in particular olive oil, injectable organic esters, for example ethyl oleate, or other suitable organic solvents. These compositions may also contain adjuvants, in particular wetting agents, tonicity agents, emulsifiers, dispersants and stabilizers. Sterilization may be performed in several ways, for example by aseptic filtration, by incorporating sterilizing agents into the composition, by irradiation or by heating. They may also be prepared in the form of sterile solid compositions that may be dissolved at the time of use in sterile water or any other injectable sterile medium.
The compositions for rectal administration are suppositories or rectal capsules that contain, besides the active product, excipients such as cocoa butter, semisynthetic glycerides or polyethylene glycols.
The compositions for topical administration may be, for example, creams, lotions, eyedrops, mouthwashes, nasal drops or aerosols.
One subject of the invention is the aminoindazole compounds of formula (I), and the use thereof, and the pharmaceutically acceptable salts thereof, for the preparation of pharmaceutical compositions intended for preventing and treating diseases that may result from an abnormal activity of kinases, such as, for example, those involved in neurodegenerative diseases, Alzheimer's disease, Parkinson's disease, frontoparietal dementia, corticobasal degeneration, Pick's disease, strokes, cranial and spinal traumas and peripheral neuropathies, obesity, metabolic diseases, type II diabetes, essential hypertension, atherosclerotic cardiovascular diseases, polycystic ovary syndrome, syndrome X, immunodeficiency and cancer.

Examples of abnormal kinase activity that may be mentioned include that of PI3K, AkT, GSK3beta, CDKs, etc.
In human therapy, the compounds according to the invention are particularly useful for treating and/or preventing neurodegenerative diseases, Alzheimer's disease, Parkinson's disease, frontoparietal dementia, corticobasal degeneration. Pick's disease, strokes, cranial and spinal traumas and peripheral neuropathies, obesity, metabolic diseases, type II diabetes, essential hypertension, atherosclerotic cardiovascular diseases, polycystic ovary syndrome, syndrome X, immunodeficiency and cancer.
The doses depend on the desired effect, the duration of the treatment and the administration route used; they are generally between 5 mg and 1 000 mg per day orally for an adult, with unit doses ranging from 1 mg to 250 mg of active substance.
In general, the doctor will determine the appropriate dosage depending on the age and weight and all the other personal factors of the individual to be treated.
The examples that follow illustrate compositions according to the invention:
EXAMPLE A
Gel capsules containing a 50 mg dose of active product and having the composition below are prepared according to the usual technique:
- Compound of formula (I) 50 mg
- Cellulose 18 mg
- Lactose 55 mg
- Colloidal silica 1 mg
- Sodium carboxymethyl starch 10 mg
- Talc 10 mg
- Magnesium stearate 1 mg

EXAMPLES
Tablets containing a 50 mg dose of active product and having the composition below are prepared according to the usual technique:
- Compound of formula (I) 50 mg
- Lactose 104mg
- Cellulose 40 mg
- Polyvidone 10 mg
- Sodium carboxymethyl starch 22 mg
- Talc 10 mg
- Magnesium stearate 2 mg
- Colloidal sihca 2 mg
- Mixture of hydroxymethylcellulose, glycerol and titanium oxide (72/3.5/24.5) qs 1 finished film-coated tablet weighing 245 mg
5 EXAMPLE C
An injectable solution containing 10 mg of active product and having the composition below is prepared:
- Compound of formula (I) 10 mg
- Benzoic acid 80 mg
- Benzyl alcohol 0.06 ml
- Sodium benzoate 80 mg
- 95% ethanol 0.4 ml
- Sodium hydroxide 24 mg
- Propylene glycol 1.6 ml
- Water qs 4 ml
10 The present invention also relates to the method for preventing and treating diseases
in which phosphorylation of the Tau protein is involved, by administering a
compound of formula (I) and pharmaceutically acceptable salts thereof


WE CLAIM:
1. A compound of formula (I)

polycycloalkyls, alkenyl, or alkynyl radical; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, 0R8, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R4, R5, R6 and R7 are, independently of each other, selected from the group consisting of hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (1-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl, alkenyl, alkynyl, adamantyl, and polycycloalkyls ; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRIORI1, NHC(O)R10, C(O)NR10Rl I, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO,

NHSOaRlO, SO2NRIORI1, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rl 1 are, independently of each other, selected from the group consisting of hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl or heteroaryl, themselves optionally being substituted with one or more substituents chosen from halogen, (l-6C)aIkyl, (I-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
or a racemic mixture, an enantiomer, a diastereoisomer or mixtures thereof, or a tautomer thereof, or a pharmaceutically acceptable salt thereof, and
with the exception of following compounds:
3 -(2-nitrobenzamido)indazole, 3 -(2-aminobenzamido)indazole,
3-(4-chloro-2-nitrobenzamido)indazole,
3-(5-chloro-2-nitrobenzamido)indazole,
3-(2-amino-4-chlorobenzamido)indazole,
3-(2-amino-5-chlorobenzamido)indazole, 3-(benzamido)indazole,
3 -(4-methylbenzamido)indazole, 3 -(4-chlorobenzamido)indazole,
3-(4-nitrobenzamido)indazole, 3-acetamidoindazole,
N-(l H-indazol-3-yl)butanamide, N-(lH-indazol-3-yl)phenylacetamide,
N-( 1 H-indazol-3 -yl)benzhydrylacetamide,
5-amino-3-acetamidoindazole, 3-(2-hydroxybenzamido)indazole,
N-(6-chloro-1 H-indazol-3-yl)-2,2,2-trifluoroacetamide,
N-(6-chloro-1 H-indazol-3-yl)-2-furancarboxamide,
N-(6-chloro-1 H-indazol-3-yl)-2-thiophenecarboxamide,
N-(6-chloro-1 H-indazol-3 -yl)-4-(hexyloxy)benzamide,
3 -chloro-N-(6-chloro-1 H-indazol-3 -yl)benzamide,
4-chloro-N-(6-chloro-1 H-indazol-3-yl)benzamide, and
N-(5-nitro-l H-indazol-3-yl)acetamide.
2. The compound of claim 1 wherein: RisO, SorNH

R3 is (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryI(l-6C)aIkyI, cycloalkyl, alkenyl or alkynyl radical; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, 0R8, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R4 and R7 are hydrogen;
R5 and R6 are, independently of each other, selected from the group consisting of hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (1-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, cycloalkyl, heterocycle, alkenyl, alkynyl, adamantyl, polycycloalkyl; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRIORI1, NHC(O)R10, C(O)NR10Rll,NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2R10,NHSO2R10, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rl 1 are, independently of each other, a hydrogen, (l-6C)alkyl, aryl,
alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more
substituents selected from the group consisting of halogen, (l-6C)alkyl, (l-6C)alkoxy,
CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and
trifluoromethoxy;
or a racemic mixture, an enantiomer, a diastereoisomer or a mixture thereof, or a
tautomer thereof or a pharmaceutically acceptable salt thereof.
The compound of claim 1 wherein:
RisO
R4 and R7 are H

R3 is (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl or alkenyl radical; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, 0R8, COOH, C(0)OR8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R5 and R6 are, independently of each other, selected from the group consisting of hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl, and alkenyl; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NRIORI1, NHC(O)R10, C(O)NR10Rll,NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rl 1 are, independently of each other, selected from the group consisting of a hydrogen, (l-6C)alkyl, aryl, alkenyl, alkynyl and heteroaryl, themselves being optionally substituted with one or more substituents selected from the group consisting of halogen, (l-6C)alkyl, (l-6C)alkoxy, CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and trifluoromethoxy;
or a racemic mixture, an enantiomer, a diastereoisomer or a mixture thereof, or a tautomer thereof or a pharmaceutically acceptable salt thereof.
4. The compound of claim 1 wherein,
RisO,SorNH
R3 is (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, aryl or heteroaryl fused to a cycloalkyl (1-lOC), heterocycle, cycloalkyl, adamantyl, polycycloalkyls, alkenyl, or alkynyl radical; these radicals being optionally substituted

with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, OR8, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R4, R5, R6 and R7 are chosen, independently of each other, selected from the group consisting of hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (1-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl, alkenyl, alkynyl, adamantyl, and polycycloalkyls; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10, NR10Rll,NHC(O)R10, C(O)NR10Rll,NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rl 1 are, independently of each other, a hydrogen, (l-6C)alkyl, aryl,
alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more
substituents selected from the group consisting of halogen, (l-6C)alkyl, (l-6C)alkoxy,
CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and
trifluoromethoxy;
or a racemic mixture, an enantiomer, a diastereoisomer or a mixture thereof, or a
tautomer thereof or a pharmaceutically acceptable salt thereof
5. The compound of claim 1 wherein,
RisO, SorNH
R3 is (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, cycloalkyl, alkenyl or alkynyl radical; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, 0R8,

COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R4 and R7 are hydrogen;
R5, R6 are independently of each other, selected from the group consisting of hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, -O-SO2R8, -SO2-O-R8, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, cycloalkyl, heterocycle, alkenyl, alkynyl, adamantyl, and polycycloalkyl; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(O)R10,NR10Rll,NHC(O)R10, C(O)NR10Rll, NHC(S)R10, C(S)NR10R11, SRIO, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rl 1 are, independently of each other, a hydrogen, (l-6C)alkyl, aryl,
alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more
substituents selected from the group consisting of halogen, (l-6C)alkyl, (l-6C)alkoxy,
CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and
trifluoromethoxy;
or a racemic mixture, an enantiomer, a diastereoisomer or a mixture thereof, or a
tautomer thereof or a pharmaceutically acceptable salt thereof.
The compounds of claim 1 wherein,
RisO
R4 and R7 are H
R3 is (l-6C)alkyl, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl or alkenyl radical; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, 0R8,

COOH, C(0)0R8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, C(S)NR8R9, NHC(S)R8, -O-SO2R8, -SO2-O-R8, aryl, heteroaryl, formyl, trifluoromethyl, trifluoromethylsulphanyl and trifluoromethoxy;
R5 and R6 are independently of each other, selected from the group consisting of hydrogen, halogen, CN, NO2, NH2, OH, COOH, C(0)OR8, -0-C(0)R8, NR8R9, NHC(0)R8, C(0)NR8R9, NHC(S)R8, C(S)NR8R9, SR8, S(0)R8, SO2R8, NHSO2R8, SO2NR8R9, trifluoromethyl, trifluoromethoxy, (l-6C)alkyl, (l-6C)alkoxy, aryl, aryl(l-6C)alkyl, heteroaryl, heteroaryl(l-6C)alkyl, heterocycle, cycloalkyl, and alkenyl; these radicals being optionally substituted with one or more substituents selected from the group consisting of halogen, CN, NO2, NH2, OH, ORIO, COOH, C(O)OR10, -O-C(0)R10, NRlORl 1, NHC(0)R10, C(0)NR1 ORl 1, NHC(S)R10, C(S)NR1 OR! 1, SRI0, S(O)R10, SO2RIO, NHSO2RIO, SO2NRIORII, -O-SO2RIO, -SO2-O-RIO, aryl, heteroaryl, formyl, trifluoromethyl and trifluoromethoxy;
R8, R9, RIO, Rl 1 are, independently of each other, a hydrogen, (l-6C)alkyl, aryl,
alkenyl, alkynyl or heteroaryl, themselves being optionally substituted with one or more
substituents selected from the group consisting of halogen, (l-6C)alkyl, (l-6C)alkoxy,
CN, NO2, NH2, OH, COOH, COOalkyl, CONH2, formyl, trifluoromethyl and
trifluoromethoxy;
or a racemic mixture, an enantiomer, a diastereoisomer or a mixture thereof, or a
tautomer thereof or a pharmaceutically acceptable salt thereof.
I The compound of claim 4, which is selected from the group consisting of: (2Z) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid,
(2E) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid,
ethyl (2E)4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoate,
ethyl (2Z)4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoate,
4- [(6-chloro-1 H-indazol-3 -yl)amino] -4-oxo-2-butanoic acid,

(2Z) 4-[(5-bromo-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid,
(2E) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid,
(2E) 4-[(5-bromo-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid,
(2Z) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid,
4-[(5-bromo-lH-indazol-3-yl)amino]-4-oxo-2-butanoicacid,
(2E) N-(6-chloro-1 H-indazol-3-yl)-2-butenamide,
(2Z) N-(6-chloro-1 H-indazol-3-yl)-2-butenamide,
N-(6-chloro-lH-indazol-3-yl)-3-butenamide hydrochloride,
methyl 4-[(6-chloro-1 H-indazol-3-yl)amino]-4-oxo-2-butanoate,
N-(6-chloro-1 H-indazol-3-yl)acetamide,
N-(6-chloro-1 H-indazol-3-yl)butanamide,
(2E) N-(6-bromo-1 H-indazol-3-yl)-2-butenamide,
(2E) N-(5-methyl-1 H-indazol-3-yl)-2-butenamide,
(2Z) N-(6-bromo-1 H-indazol-3 -yl)-2-butenamide,
(2Z) N-(5-methyI-1 H-indazol-3-yl)-2-butenamide,
N-(6-chloro-1 H-indazol-3-yl)-2-propanamide,
(2E)N-[6-(trifluoromethyl)-lH-indazol-3-yl]-2-butenamide,
(2Z) N-[6- trifluoromethyl)l-l H-indazol-3-yl]-2-butenamide,
ethyl 4-[[6-(trifluoromethyl)-1 H-indazol-3-yl]amino]-4-oxobutanoate,
(2E) N-[5 -(trifluoromethyl)-1 H-indazol-3 -yl] -2-butenamide,

(2Z)N-[5-(trifluoromethyl)-lH-indazol-3-yl]-2-butenamide,

N-N-N-N-N-N-N-l N-l N-l N-N-N-l N-l N-j N-N-N-N-N-

5-chloro-1 H-indazol-3-yl]-2-butanainide, 4-chloro-1 H-indazol-3 -yl]butanamide, 6-(trifluoromethyl)-1 H-indazol-3-yljbutanamide, 6-chloro-1 H-indazol-3-yljpropenamide, 5-(trifluoromethyl)-lH-indazol-3-yl]butanamide, 5-nitro-1 H-indazol-3-yljbutanamide, 6-bromo-1 H-indazol-3-yljbutanamide, 6-(3-pyridyl)-1 H-indazol-3-yl]butanamide, 4-iodo-1 H-indazol-3-yljbutanamide, 6-phenyl-1 H-indazol-3-yl]butanamide, 6-bromo-5,7-dinitro-1 H-indazol-3-yl]butanamide, 6-bromo-7-nitro-1 H-indazol-3-yl]butanamide, 6-bromo-5-nitro-1 H-indazol-3-yl]butanamide, 6-(3-furyl)-lH-indazol-3-yl]butanamide, 6-[4-(benzyloxy)phenyl]-1 H-indazol-3-yl]butanamide, 6-(4-hydroxyphenyl)-1 H-indazol-3-yl]butanamide, 6-chloro-lH-indazol-3-yl]benzenamide, 6-(3,5-difluorophenyl)-1 H-indazol-3-yljbutanamide, 6-(3 -thienyl)-1 H-indazol-3 -yljbutanamide,

N-[6-chloro-lH-indazol-3-yl]-2-thiopheneacetamide,
N- [5 -(3 -fluorobenzenesulphonylamino)-1 H-indazol-3 -yl]benzamide,
N-[6-(2-chlorophenyl)-1 H-indazoI-3-yl]butanamide,
N-[6-(2-chloro-4-hydroxyphenyI)-lH-indazol-3-yl]butanamide,
N-[6-(4-ethylphenyl)-1 H-indazol-3-yl]butanamide,
N-[6-(4-ethenylphenyl)-lH-indazol-3-yl]butanamide,
N-[6-(4-pyridyl)-1 H-indazol-3-yl]butanamide,
N-[6-(phenylmethyI)-1 H-indazol-3-yl]butanamide,
N-[6-(4-aminophenyl)-1 H-indazol-3-yl]butaiiamide,
N- [6-( 1 -morpholino)-1 H-indazol-3 -yl]butanamide,
N-[6-[(4-phenylethynyl)phenyl]-lH-indazol-3-yl]butanamide,
N-[6-(2-propenyl)-1 H-indazol-3-yl]butanamide,
N-[5-amino-1 H-indazol-3-yI]butanamide,
N-[6-bromo-5-chloro-1 H-indazol-3-yl]butanamide,
N-[6-chloro-5-bromo-1 H-indazol-3-yljbutanamide,
N-[6-chloro-5-nitro-lH-indazol-3-yl]butanamide,
N-[6-(4-hydroxyphenyI)-5-bromo-1 H-indazol-3-yl]butanamide,
N-[6-(4-hydroxyphenyl)-5-(phenylamino)-lH-indazol-3-yl]butanamide,
N-[6-(4-hydroxyphenyl)-5-(2-phenylethenyl)-lH-indazol-3-yl]butanamide,
N-[6-(4-hydroxyphenyl)-5-phenylcarbonyl-1 H-indazol-3-yl]butanamide,

N-[6-(4-hydroxyphenyl)-5-[3-(dimethylamino)propynyl]-lH-indazol-3-yl]butanamide,
N-[6-chloro-1 H-indazol-3-yl]-3-thiophenecarboxamide,
N-[6-chloro-1 H-indazol-3-yl]-2-pyridineacetamide,
N-[6-chloro-lH-indazol-3-yl]-3-pyridinecarboxamide,
N-[6-chloro-lH-indazol-3-yl]benzeneacetamide,
N-[6-chloro-lH-indazol-3-yl]benzenepropanamide,
N-[6-chloro-1 H-indazol-3 -yl] -3 -pyridineacetamide,
N-[6-chloro-lH-indazol-3-yl]-2-chloroacetamide,
N-[6-chloro-lH-indazol-3-yl]-4-morpholineacetamide,
N-[6-chloro-1 H-indazol-3 -yl]-1 -piperazineacetamide,
N-[6-chloro-lH-indazoI-3-yl]-4-[(2-methoxyethyl)amino]cyclohexanecarboxamide,
4-amino-N-[6-chloro-lH-indazol-3-yl]-l-piperidinecarboxamide, and
N-[6-chloro-lH-indazol-3-yI]-4-morphoIinylcarboxamide;
or a racemic mixture, an enantiomer, a diastereoisomer or a mixtxire thereof, or a
tautomer thereof or a pharmaceutical ly acceptable salt thereof.
The compound of claim 4, selected from the group consisting of: (2Z) 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butenoic acid,
ethyl (2E) 4-[(6-chloro-l H-indazol-3-yl)amino]-4-oxo-2-butenoate,
4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butanoicacid,
(2Z) 4-[(5-bromo-l H-indazol-3-yl)amino]-4-oxo-2-butenoic acid,
(2E) 4-[(6-chloro-l H-indazol-3-yl)amino]-4-oxo-2-butenoic acid,

4-[(5-bromo-1 H-indazol-3-yl)amino]-4-oxo-2-butanoic acid,
(2E) N-(6-chloro-1 H-indazoI-3-yl)-2-butenamide,
N-(6-chloro-l H-indazol-3-yl)-3-butenamide hydrochloride,
methyl 4-[(6-chloro-lH-indazol-3-yl)amino]-4-oxo-2-butanoate,
N-(6-chloro-1 H-indazol-3-yl)acetamide,
N-(6-chloro-1 H-indazol-3-yl)butanamide,
(2E) N-(6-bromo-1 H-indazol-3-yl)-2-butenamide,
(2E) N-(5-methyl-1 H-indazol-3-yl)-2-butenamide,
N-(6-chloro-1 H-indazol-3 -yl)-2-propanamide,
(2E) N- [6-(trifluoromethyl)-1 H-indazol-3 -yl]-2-butenamide,
ethyl 4-[[6-(trifluoroinethyl)-lH-indazol-3-yl]amino]-4-oxobutanoate,
(2E)N-[5-(trifluoromethyl)-lH-indazol-3-yl]-2-butenamide,
N-[5-chloro-1 H-indazol-3-yl]-2-butanamide,
N-[4-chloro-1 H-indazol-3-yljbutanamide,
N- [6-(trifluoromethyl)-1 H-indazol-3 -yljbutanamide,
N-[6-chloro-lH-indazol-3-yl]propenamide,
N-[5-(trifluoromethyl)-1 H-indazol-3-yl]butanamide,
N-[5-nitro-1 H-indazol-3-yl]butanamide,
N-[6-bromo-1 H-indazol-3-yl]butanamide,
N-[6-(3-pyridyl)-1 H-indazol-3-yl]butanamide,

N-N-N-N-N-N-N-
N-N-N-
N-i N-l N-l N-i N-N-N-N-N-

4-iodo-1 H-indazol-3-yl]butanamicle,
6-phenyl-1 H-indazol-3-yl]butanamide,
6-bromo-5,7-dinitro-lH-indazol-3-yl]butanamide,
6-bromo-7-nitro-1 H-indazol-3-yl]butanamide,
6-bromo-5-nitro-1 H-indazol-3-yljbutanamide,
6-(3-furyl)-1 H-indazol-3-yI]butanamide,
6-[4-(benzyloxy)phenyI]-1 H-indazoI-3 -yljbutanamide,
6-(4-hydroxyphenyl)-1 H-indazol-3-yl]butanamide,
6-chloro-1 H-indazol-3-yl]benzenamide,
[6-(3,5 -difluorophenyl)-1 H-indazol-3 -yl] Jbutanamide,
6-(3-thienyl)-lH-indazol-3-yl]butanamide,
6-chloro-1 H-indazol-3-yl]-2-thiopheneacetamide,
5-(3-f[uorobenzenesulphonylamino)-lH-indazol-3-yl]benzamide,
6-(2-phenylethyl)-lH-indazol-3-yl]butanamide,
6,7-difluoro-1 H-indazol-3-yl)butanamide,
6-(4-methoxyphenyl)-1 H-indazol-3-yl]butanamide,
6-(4-methylthiophenyl)-1 H-indazol-3-yljbutanamide,
6-(4-trifluoromethoxyphenyl)-lH-indazol-3-yl]butanamide,
(6-(l-propenyl)-l H-indazol-3-yljbutanamide,
6-chloro-1 H-indazol-3-ylJ-2-pyridinecarboxamide,

N-[6-(4-fluorophenyl)-lH-indazol-3-yl]butanamide,
N-[6-[4-(l,l-dimethylethyl)phenyl]-lH-indazol-3-yl]butanamide,
N-[6-bromo-7-amino-lH-indazol-3-yl]butanamide,
N-[6-[4-(trifluoromethyl)phenyl]-1 H-indazol-3-yl]butanamide,
N-[6-(4-methyIphenyl)-1 H-indazol-3-yljbutanamide,
N-[6-(3,5-dichlorophenyl)-1 H-indazol-3-yl]butanamide,
N-[6-chloro-lH-indazol-3-yl]-3,5-dichlorobenzamide,
N-[6-(4-chlorophenyl)-1 H-indazol-3-yl]butanamide,
N-[6-chloro-1 H-indazol-3-yl]benzenepropanamide trifluoroacetate,
N-[6-chloro-1 H-indazol-3-yl]benzenepropanamide,
N-[[6-(4-ethylphenyl)-1 H-indazol-3-yl]]butanamide,
N-[6-(4-pyridyl)-1 H-indazol-3-yl]butanamide,
N-(5-amino-1 H-indazol-3-yl)butanamide,
N-(5-bromo-6-chloro-1 H-indazol-3-yl)butanamide,
N-(6-chloro-1 H-indazol-3-yl)-2-thiophenecarboxamide,
N-(6-chloro-1 H-indazol-3-yl)-2-methylpropylamide,
4-chloro-N-(6-chloro-lH-indazol-3-yl)butanamide,
N-(5-phenyl-6-chIoro-lH-indazol-3-yl)butanamide,
N-[5-bromo-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide,
N-[5-bromo-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide,

N-[[6-(4-nitrophenyl)-1 H-indazol-3-yl]]butanamide,
N-[6-(2-chlorophenyl)-1 H-indazol-3-yl]butanamide,
N- [6- [3 -(phenylmethoxy)phenyl] -1 H-indazoI-3 -yl] butanamide,
N-[6-(3-hydroxyphenyl)-1 H-indazol-3-yl]butanamide,
N-[6-chloro-5-(4-pyridyl)-1 H-indazoI-3-yl]butanamide,
N-[6-chloro-5-(3-furyl)-lH-indazol-3-yl]butanamide,
N-[6-[2-chloro-4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide,
N-[6-(2-chIoro-4-hydroxyphenyl)-1 H-indazoI-3-yl]butanamide,
N-[5,6-dibromo-1 H-indazol-3-yl]butanainide,
N-[6-chloro-lH-indazol-3-yl]-2,2,3,3,4,4,4-heptafluorobutanainide,
N-[6-chloro-5-(4-fluorophenyl)-lH-indazol-3-yl]butanamide,
N-[[6-(4-aminophenyl)-lH-indazol-3-yl]]butanamide,
N-[6-[4-(dimethylamino)phenyl]-lH-indazol-3-yl]butanamide,
N-(6-chloro-1 H-indazol-3-yl)-4-methyl-1 -piperazineacetamide,
N-(6-chloro-1 H-indazol-3 -yl)-1 -piperidineacetamide,
N-(6-chloro-1 H-indazol-3-yl)-4-morpholineacetamide,
N-(6-chloro-1 H-indazol-3 -yl)-1H-1,2,4-triazole-1 -acetamide,
N-(6-chloro-1 H-indazol-3-yl)-2-(cyclohexylamino)acetamide,
2- [(phenylmethyl)aniino] -N-(6-chloro-1 H-indazol-3 -yl)acetamide,
N-(6-chloro-1 H-indazol-3 -yl)-1 H-azepine-1 -acetamide,

N-(6-chloro-1 H-indazol-3-yl)-1 -piperazineacetamide,
N-(6-chloro-lH-indazoI-3-yl)-2-[[3-(dimethylamino)propyI]amino]acetamide,
N-(6-chloro-1 H-indazol-3 -yl)thiomorpholine-4-acetamide,
N-(6-chloro-1 H-indazol-3 -yl)-1 -pyrrolidineacetamide,
N-(6-chloro-lH-indazol-3-yl)-2-[[2-(dimethylamino)ethyl]amino]acetamide,
N-(6-chloro-1 H-indazol-3-yl)-1-cyclopropylaminoacetamide trifluoroacetate,
N-(6-chloro-lH-indazol-3-yl)-l-cyclopropylaminoacetaniide,
N-(6-chloro-lH-indazol-3-yl)-2-(2-diethylaminoethylamino)acetaniide tris(trifluoroacetate),
N-(6-chloro-l H-indazol-3-yl)-2-(2-diethylaminoethylamino)acetamide,
N-[5,6-diphenyl-1 H-indazol-3-yljbutanamide,
N-[6-chloro-5-(4-methylphenyl)-lH-indazol-3-yl]butanamide,
N-[5-phenyl-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide,
N-[5-phenyl-6-(4-hydroxyphenyl)-1 H-indazol-3-yl]butanamide,
N-[6-chloro-5-(4-pyridyl)-1 H-indazol-3-yl]butanamide,
N-[5-(4-aminophenyl)-6-chloro-1 H-indazol-3-yl]butanamide,
N-[6-chloro-5-(4-ethylphenyl)-lH-indazoI-3-yl]butananiide,
N-[6-chloro-5-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide,
N-[6-chloro-5-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide,
N-[5,6-bis[4-(phenylmethoxy)phenyl]-1 H-indazol-3-yl]butanamide,

N-N-N-N-N-N-N-N-! N-l N-i N-i N-N-N-N-N-N-N-N-N-

5,6-bis(4-hydroxyphenyl)-1 H-indazol-3 -yljbutanamide,
5-(3-furyl)-6-[4-(phenylinethoxy)phenyl] -1 H-indazol-3-yl]butanamide,
5-(3-furyl)-6-([4-hydroxyphenyl)-lH-indazol-3-yl]butanamide,
5-(4-ethylphenyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide,
5-(4-ethylphenyl)-6-(4-hydroxyphenyl)-lH-indazol-3-yl]butanamide,
5-(3-pyridyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide,
5-(3-pyridyl)-6-(4-hydroxyphenyl)-l H-indazol-3-yl]butanamide,
5-(2-furyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazol-3-yl]butanamide,
5-(2-furyl)-6-(4-hydroxyphenyl)-1 H-indazol-3-yl]butanamide,
5-bromo-6-chloro-7-nitro-1 H-indazol-3-yl)butanainide,
5-bromo-6,7-difluoro-1 H-indazol-3-yl)butanamide,
6-(4-cyanophenyl)-l H-indazol-3-yl]butanamide,
6,7-difluoro-5-nitro-lH-indazol-3-yl)butanamide,
6,7-difluoro-5-phenyl-1 H-indazol-3-yl)butanamide,
6-(6-hydroxypyrid-3-yI)-1 H-indazol-3-yl]butanamide,
6-(3,4-dihydroxyphenyl)-1 H-indazoI-3-yl]butanamide trifluoroacetate,
6-(3,4-dihydroxyphenyl)-1 H-indazol-3-yl]butanamide,
7-fluoro-5-nitro-6-[2-(phenylethyl)amino]-lH-indazol-3-yl]butanamide,
7-fluoro-5-nitro-6-morpholino-lH-indazol-3-yl)butanamide,
7-fluoro-5-amino-6-morpholino-1 H-indazol-3-yl)butanamide,

N-(5-bromo-7-fluoro-6-morpholino-1 H-indazol-3-yl)butanamide,
N-[7-fluoro-6-(trifluoromethyl)-lH-indazol-3-yl]butanamide,
N-(6-bromo-4,5,7-trifluoro-lH-indazol-3-yl)butanamide,
N-[ 6-(6-aminopyrid-3-yl)-lH-indazol-3-yl]butanamide difluoroacetate,
N-[ 6-(6-aminopyrid-3-yl)-lH-indazol-3-yl]butanamide,
2-chloro-N-(6,7-difluoro-lH-indazol-3-yl)acetainide, and
N-(6,7-difluoro-1 H-indazol-3 -yl)-1 -piperidineacetamide,
or a racemic mixture, an enantiomer, a diastereoisomer or a mixture thereof, or a
tautomer thereof or a pharmaceutically acceptable salt thereof.
A pharmaceutical composition comprising at least one compound as defined in claim 1 in combination with at least one pharmaceutically acceptable carrier.
A process for preparing the compounds of formula (I) as defined in claim 1 wherein R is oxygen, comprising:
a) acylating an amine of formula (II) to produce a compound of formula (I) wherein R is oxygen; and


11. A process for preparing the compounds of formula (I) as defined in claim 1 and wherein
R is sulfur, comprising:
a) thionating a compound of formula I, wherein R is oxygen to produce a compound
of formula (I) wherein R is sulfur; and
b) optionally converting the product of (a) into a pharmaceutically acceptable salt.
12. A process for preparing the compounds of formula (I) as defined in claim 1 and wherein R
is NH, comprising:

b) optionally converting the product of (a) into a pharmaceutically acceptable salt, wherein R4, R5, R6 and R7 have the same meanings as in claim 1.
13. The process according to claim 12, for preparing a compound of formula (II),
comprising:
a) reacting a compound of formula (III) with hydrazine to produce a compound of formula (II)


3-amino-6-chloro-1 -[(2-trimethylsilylethoxy)methyl]indazole,
N- [ [6-chloro-1 - [(2-trimethylsilylethoxy)methyl] indazol-3 -yl]]propenamide,
N-[[6-chloro-l-(2-trimethylsilylethoxy)methyl]indazol-3-yl]]butananiide,
N-[[6-(3-pyridyl)-l-[(2-trimethylsilylethoxy)methyl]indazol-3-yl]]butanamide,
N-[6-(3-pyridyl)-lH-indazol-3-yl]butanamide,
N-[[6-phenyl-l-[(2-trimethylsilylethoxy)methyl]indazol-3-yl]]butanamide,
N-[[(6-fiiran-3-yl)-l-[(2-trimethyIsilylethoxy)inethyl]indazol-3-yl]]butanamide,
N-[[[6-(4-benzyloxy)phenyl]-l-[(2-trimethylsilylethoxy)methyl]indazol-3-yl]]butanamide,
N-[[6-(3,5-difluorophenyl)-l-[(2-triniethylsilylethoxy)methyl]indazol-3-yl]]butanamide,
N-[[6-(3-thienyl)-1 -[(2-trimethylsilylethoxy)methyl]indazol-3-yl]] butanamide,
N-[6-(2-phenylethyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[6-[4-(methylthio)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[6-(4-methoxyphenyI)-1 -[[2-(trimethylsilyl)ethoxy]methyI]-1 H-indazoI-3-yljbutanamide,

N-[6-[4-(trifluoromethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide,
N-[(6-(2-propenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[6-(4-fluorophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[6-[(l,l-dimethylethyl)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide,
N-[6-[4-(trifluoromethyl)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yi]butanamide,
N- [6-(4-methylphenyl)-1 - [ [2-(trimethylsilyl)ethoxy]methyl] -1 H-indazol-3 -yl]butanamide,
N-[6-bromo-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butananiide,
N-[6-(3,5-dichlorophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[6-(4-chlorophenyl)-1 -[[2-(trimethylsilyl)ethoxy]methyI]-1 H-indazol-3-yI]butanamide,
N-[6-(4-ethylphenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[6-(4,4,5,5-tetramethyl- [ 1,3,2]dioxaborolan-2-yl)-1 -[[2-(trimethylsilyl)ethoxy]methyl]-1 H-indazol-3-yl]butanamide,
N-[6-(4-pyridyl)-1 -[[2-(trimethylsilyl)ethoxy]methyl]-1 H-indazol-3-yl]butanamide,
N-[5-bromo-6-chloro-1 -[[2-(trimethylsilyl)ethoxy]methyl]-1 H-indazol-3-yl]butanamide,
N- [5-phenyl-6-chloro-1 - [[2-(trimethylsilyl)ethoxy]methyl] -1 H-indazol-3 -yl] butanamide,
N-[5-bromo-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsiIyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,

N-[6-(4-nitrophenyl)-1 - [ [2-(trimethylsilyl)ethoxy]inethyl]-1 H-indazol-3-yl]butanamide,
N-[6-(2-chlorophenyl)-1 -[(2-(trimethyIsilyI)ethoxy]methyl]-1 H-indazol-3-yljbutanamide,
N- [6- [3 -(phenylmethoxy)pheny 1] -1 - [ [2-(trimethylsilyl)ethoxy] methyl] -1 H-indazol-3 -yljbutanamide,
N-[6-chloro-5-(4-pyridyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[6-chloro-5-(3-furyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide,
l-bromo-2-chloro-4-(phenylmethoxy)benzene,
N-[6-[2-chloro-4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[5,6-dibromo-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[5-(4-fluorophenyl)-6-chloro-1 -[[2-(trimethylsilyl)ethoxy]methyI]-1 H-indazol-3-yl]butanamide,
N-[6-[4-(dimethylamino)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide,
2-chloro-N-(6-chloro-1 H-indazol-3-yl)acetamide,
N-[5,6-diphenyl-1 -[[2-(trimethylsilyl)ethoxy]methyl]-1 H-indazol-3-yl]butanamide,
N- [6-chloro- 5 -(4-methylphenyl)-1 - [ [2-(trimethylsilyl)ethoxy] methyl] -1 H-indazol-3 -yljbutanamide,
N-[6- [4-(phenylmethoxy)phenyl]-5-phenyl-1 -[[2-(trimethylsilyl)ethoxy]methyl]-1H-indazol-3-yl]butanamide.

N-[6-chloro-5-(4,4,5,5-tetramethyl-[l,3,2]-dioxaborolan-2-yl)-l-[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanainide,
N-[6-chloro-5-(4-nitrophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide,
N-[6-chloro-5-(4-ethylphenyl)-l-[[2-(trimethyIsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide,
N-[6-chloro-5-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]inethyl]-lH-indazol-3-yl]butanamide,
N-[5,6-bis[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[5-(3-furyI)-6-[4-(phenylmethoxy)phenyl]-1 -[[2-(trimethylsilyI)ethoxy]methyl]-1H-indazol-3-yl]butanamide,
N-[5-(4-ethylphenyl)-6-[4-(phenylinethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-1 H-indazol-3 -yl]butanamide,
N-[5-(3-pyridyl)-6-[4-(phenylmethoxy)phenyl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[5-(2-furyI)-6-[4-(phenylmethoxy)phenyl]-1 -[[2-(trimethylsilyl)ethoxy]methyl]-1H-indazol-3-yl]butanamide,
N-(6,7-difluoro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl)butanamide,
N-(5-bromo-6,7-difluoro-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl)butanamide,
N-[6-(4-cyanophenyl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[6,7-difluoro-5-phenyl-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,

5-bromo-2-[[2-(trimethylsilyl)ethoxy]methoxy]pyridine,
N-[6-[6-[[2-(trimethylsilyl)ethoxy]methoxy]pyridyl-3-yl]-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yl]butanamide,
N-[6-(2,2-diphenylbenzo[l,3]dioxol-5-yl)-l-[[2-(trimethylsilyl)ethoxy]methoxy]-lH-indazol-3-yl]butanamide,
N-[6-(l ,3-benzodioxol-5-yl)-l -[[2-(trimethylsilyl)ethoxy]methoxy]-1 H-indazol-3-yl)butanamide,
N-[6-(l,3-benzodioxol-5-yI)-lH-indazol-3-yl]butanamide,
6-chloro-4,5,7-trifluoro-1 H-indazole-3 -amine,
N-[6-(6-aminopyrid-3-yl)-l-[[2-(trimethylsilyl)ethoxy]methyl]-lH-indazol-3-yljbutanamide,
3 -amino-6-bromo-1 H-indazole,
3-amino-6-(3-pyridyl)-lH-indazole,
3 -amino-4-iodo-1 H-indazole,
3 -amino-6-bromo-5,7-dinitro-1 H-indazole,
3 -amino-6-bronio-7-nitro-1 H-indazole,
3-aniino-6-bromo-5-nitro-1 H-indazole,
3-amino-6-(3-furyl)-1 H-indazole,
3-amino-6-[4-(phenylmethoxy)phenyl]-lH-indazole,
3 -amino-6-(4-hydroxyphenyl)-1 H-indazole,
3-amino-6-(3,5-difluorophenyl)-lH-indazole,

3 -amino-6-(3 -thienyl)-1 H-indazole,
3-amino-5- [[(3 -fluorophenyl) sulfonyl]amino] -1 H-indazole,
3-amino-6-(2-phenylethyl)-1 H-indazole,
3-aniino-6,7-difluoro-1 H-indazole,
3-amino-6-(4-methoxyphenyl)-1 H-indazole,
3-amino-6-(4-methylthiophenyl)-1 H-indazole,
3 -amino-6-(4-trifluoroniethoxyphenyl)-1 H-indazole,
3 -amino-(6-( 1 -propenyl)-1 H-indazoIe,
3 -amino-6-(4-fluorophenyl)-1 H-indazole,
3 -amino-6- [4-( 1,1 -dimethylethyl)phenyl] -1 H-indazole,
3-amino-6-bronio-7-amino-1 H-indazole,
3-amino-6-(4-methylphenyl)-1 H-indazole,
3-amino-6-(3,5-dichlorophenyl)-1 H-indazole,
3 -amino-6-(4-chlorophenyl)-1 H-indazole,
3-amino-6-(4-ethylphenyl)-1 H-indazole,
3-amino-6-(4-pyridyl)-1 H-indazole,
3-amino-5-amino-1 H-indazole,
3-amino-5-bronio-6-chloro-lH-indazole,
3-amino-5-phenyl-6-chloro-lH-indazole,
3-amino-5-bromo-6-[4-(phenylmethoxy)phenyl] -1 H-indazole,

3-amino-5-broino-6-(4-hydroxyphenyl)-lH-indazole,
3 -amino-6-(4-nitrophenyl)-1 H-indazole,
3 -amino-6-(2-chlorophenyl)-1 H-indazole,
3 -amino-6- [3 -(phenylmethoxy)phenyl]-1 H-indazole,
3-amino-6-(3-hydroxyphenyl)-l H-indazole,
3-amino-6-chloro-5-(4-pyridyl)-lH-indazole,
3 -amino-6-chloro-5 -(3 -furyl)-1 H-indazole,
3 -amino-6- [2-chloro-4-(phenylmethoxy)phenyl] -1 H-indazole,
3-amino-6-(2-chloro-4-hydroxyphenyl)-l H-indazole,
3-amino-5,6-dibromo-1 H-indazoIe,
3-amino-6-chloro-5-(4-fluorophenyl)-lH-indazole,
3-amino-6-(4-aminophenyl)-1 H-indazole,
3-amino-6-[4-(dimethylaniino)phenyl]-lH-indazole,
3 -amino-5,6-diphenyl-1 H-indazole,
3-amino-6-chloro-5-(4-methylphenyl)-1 H-indazole,
3 -amino-5-phenyl-6- [4-(phenylmethoxy)phenyl] -1 H-indazole,
3-amino-5-phenyl-6-(4-hydroxyphenyl)-1 H-indazole,
3 -amino-5 -(4-aminophenyl)-6-chloro-1 H-indazole,
3-amino-6-chloro-5-(4-ethylphenyl)-1 H-indazole,
3-amino-6-chloro-5-[4-(phenylmethoxy)phenyl]-1 H-indazole,

3-amino-6-chloro-5-(4-hydroxyphenyl)-lH-indazole,
3-amino-5,6-bis[4-(phenylmethoxy)phenyl]-lH-indazole,
3-amino-5,6-bis(4-hydroxyphenyl)-1 H-indazole,
3-amino-5-(3-furyl)-6-[4-(phenylmethoxy)phenyl]-1 H-indazole,
3-amino-5-(3-fiaryl)-6-([4-hydroxyphenyl)-1 H-indazole,
3-amino-5-(4-ethylphenyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazole,
3-amino-5-(4-ethylphenyl)-6-(4-hydroxyphenyl)-lH-indazole,
3-amino-5-(3-pyridyl)-6-[4-(phenylmethoxy)phenyl]-lH-indazole,
3-amino-5-(3-pyridyl)-6-(4-hydroxyphenyl)-lH-indazole,
3-amino-5-(2-furyl)-6-[4-(phenylmethoxy)phenyl] -1 H-indazole,
3-amino-5-(2-furyl)-6-(4-hydroxyphenyl)-l H-indazole,
3 -amino-5 -bronio-6-chloro-7-nitro-1 H-indazole,
3-amino-5-bromo-6,7-difluoro-lH-indazole,
3 -amino-6-(4-cyanophenyl)-1 H-indazole,
3-amino-6,7-difluoro-5-nitro-lH-indazole,
3-amino-6,7-difluoro-5-phenyl-1 H-indazole,
3 -amino-6-(6-hydroxypyrid-3 -yl)-1 H-indazole,
3 -amino-6-(3,4-dihydroxyphenyl)-1 H-indazole,
3-amino-7-fluoro-5-nitro-6-[2-(phenylethyl)amino]-1 H-indazole,
3-amino-7-fluoro-5-nitro-6-morpholino-1 H-indazole,

3-amino-7-fluoro-5-amino-6-morpholino-1 H-indazole, 3-amino-5-bromo-7-fluoro-6-morphoIino-1 H-indazole, 3-amino-7-fluoro-6-(trifluoromethyl)-1 H-indazole, 3-amino-6-bromo-4,5,7-trifluoro-1 H-indazole, and 3-amino-6-(6-aminopyrid-3-yl)-lH-indazole.


Documents:

1977-chenp-2005 abstract.pdf

1977-chenp-2005 claims-duplicate.pdf

1977-chenp-2005 claims.pdf

1977-chenp-2005 correspondnece-others.pdf

1977-chenp-2005 correspondnece-po.pdf

1977-chenp-2005 description(complete)-duplicate.pdf

1977-chenp-2005 description(complete).pdf

1977-chenp-2005 form-1.pdf

1977-chenp-2005 form-18.pdf

1977-chenp-2005 form-26.pdf

1977-chenp-2005 form-3.pdf

1977-chenp-2005 form-5.pdf

1977-chenp-2005 pct.pdf

1977-chenp-2005 petition.pdf


Patent Number 224544
Indian Patent Application Number 1977/CHENP/2004
PG Journal Number 49/2008
Publication Date 05-Dec-2008
Grant Date 16-Oct-2008
Date of Filing 03-Sep-2004
Name of Patentee AVENTIS PHARMA S.A
Applicant Address 20, AVENUE RAYMOND ARON, F-92160 ANTONY,
Inventors:
# Inventor's Name Inventor's Address
1 LESUISSE, DOMINIQUE 11, RUE DES FEDERES, F-93100 MONTREUIL,
2 HALLEY, FRANCK 26, RUE DE LA BORNE DU DIABLE, F-92310 SEVRES,
3 DUTRUC-ROSSET, GILLES 21, AVENUE DU DOCTRUR ARNOLD NETTER, F-75012 PARIS,
4 ROONEY, THOMAS 2, PLACE DU CHAMP DES CORDES, F-91400 ORSAY,
PCT International Classification Number CO7D231/56
PCT International Application Number PCT/FR03/00752
PCT International Filing date 2003-03-07
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 02/02997 2002-03-11 France