Title of Invention

NOVEL COMPOUNDS AS FAAH INHIBITORS

Abstract The invention relates to a compound having general formula (I), wherein: A is selected from among one or more X, Y and/or Z groups; X represents an optionally-substituted methylene group; Y represents a C2-alkenylene, optionally substituted, or a C2-alkynylene; Z represents a C3-7 cycloalkyl group; n represents an integer varying between 1 and 7; R1 represents an optionally-substituted heteroaryl or naphthalenyl type group; and R7 represents a hydrogen atom or a C1-6 alkyl group; R8 represents a hydrogen atom or a C1-6 alkyl, C3-7 cycloalkyl, C3-7 cycloalkyl-C1-3 alkylene group. The inventive compound takes the form of a base, an acid addition salt, a hydrate or a solvate. Said compounds have an inhibitory activity on the FAAH enzyme.
Full Text A subject-matter of the invention is aryl- and
heteroarylalkylcarbamate derivatives, their preparation and
their application in therapeutics.
Phenylalkylcarbamate and (dioxan-2-yl)alkylcarbamate
derivatives, disclosed respectively in the documents
)FR 2850377 A and WO 2004/020430 A2, which are inhibitors of
the enzyme FAAH (Fatty Acid Amido Hydrolase) are already
known.
There still exists a need to find and develop products which
are inhibitors of the enzyme FAAH. The compounds of the
invention meet this aim.
The compounds of the invention correspond to the general
formula (I):
(I)
in which:
A is chosen from one or more groups X, Y and/or Z;
X represents a methylene group optionally substituted by one
or two C1-6-alkyl, C3-7-cycloalkyl or C3-7-cycloalkyl-C1-3-
5alkylene groups;
Y represents either a C2-alkenylene group optionally
substituted by one or two C1-6-alkyl, C3_7-cycloalkyl or C3_7-
cycloalkyl-C1-3-alkylene groups; or a C2-alkynylene group;
Z represents a group of formula:
m represents an integer ranging from 1 to 5;
p and q represent integers and are defined such that p+q is
a number ranging from 1 to 5;
n represents an integer ranging from 1 to 7;
R1 represents an R2 group optionally substituted by one or
more R3 and/or R4 groups;
R2 represents a group chosen from a pyridyl, pyrimidinyl,
pyridazinyl, pyrazinyl, triazinyl, pyrrolyl, furyl, thienyl,
imidazolyl, oxazolyl, thiazolyl, pyrazolyl, isoxazolyl,
isothiazolyl, oxadiazolyl, thiadiazolyl, triazolyl,
tetrazolyl, naphthyl, quinolinyl, tetrahydroquinolinyl,
isoquinolinyl, tetrahydroisoquinolinyl, 2-oxo-3,4-
dihydroquinolinyl, l-oxo-3,4-dihydroisoquinolinyl,
quinazolinyl, quinoxalinyl, phthalazinyl, cinnolinyl,
naphthyridinyl, benzofuranyl, dihydrobenzofuranyl,
benzothienyl, dihydrobenzothienyl, indolyl, indolinyl,
indazolyl, isoindolyl, benzimidazolyl, benzoxazolyl,
benzisoxazolyl, benzothiazolyl, benzisothiazolyl,
benzotriazolyl, benzoxadiazolyl, benzothiadiazolyl,
pyrrolopyridyl, furopyridyl, thienopyridyl, imidazopyridyl,
oxazolopyridyl, thiazolopyridyl, pyrazolopyridyl,
isoxazolopyridyl or isothiazolopyridyl;
R3 represents a group chosen from halogen atoms or cyano,
nitro, C1-6-alkyl, C3-7-cycloalkyl, C1-6-alkoxy, hydroxyl, C1-6-
thioalkyl, C1-6-f luoroalkyl, C1-6-f luoroalkoxy, C1-6-
fluorothioalkyl, NR5R6, NR5COR6, NR5C02R6, NR5S02R6, COR5, C02R5,
CONR5R6, S02R5, S02NR5R6, -0-(C1-3-alkylene)-0- or phenyl
groups, the phenyl group optionally being substituted by one
or more halogen atoms;
R4 represents a group chosen from phenyl, phenyloxy,
benzyloxy, naphthyl, pyridyl, pyrimidinyl, pyridazinyl or
pyrazinyl groups; it being possible for the R4 group or
groups to be substituted by one or more R3 groups which are
identical to or different from one another;
iR5 and R6 represent, independently of one another, a hydrogen
atom or a C1-6-alkyl group or form, with the atom or atoms
which carry them, a ring chosen from an azetidine,
pyrrolidine, piperidine, morpholine, thiomorpholine, azepine
or piperazine ring, this ring optionally being substituted
by a C1-6-alkyl or benzyl group;
R7 represents a hydrogen atom or a C1-6-alkyl group;
R8 represents a hydrogen atom or a C1-6-alkyl, C3-7-cycloalkyl
or C3_7-cycloalkyl-C1-3-alkylene group.
In the context of the invention, the compounds of general
formula (I) can thus comprise several groups A which are
identical to or different from one another.
Among the compounds of general formula (I) , a first subgroup
of compounds is compoundd of the compounds for which:
A is chosen from one or more groups X and/or Y;
X represents a methylene group;
Y represents a C2-alkynylene group;
n represents an integer ranging from 1 to 5;
Ri represents an R2 group optionally substituted by one or
more R3 and/or R4 groups ;
R2 represents a group chosen from a pyridyl, pyrimidinyl,
pyridazinyl, imidazolyl, oxazolyl, pyrazolyl, isoxazolyl,
oxadiazolyl, naphthyl, quinolinyl, isoquinolinyl,
dihydroisoquinolinyl, 2-oxo-3,4-dihydroquinolinyl, indolyl,
benzimidazolyl or pyrrolopyridyl;
:R3 represents a group chosen from halogen atoms, more
particularly chlorine and fluorine atoms, or C1-6-alkyl, more
particularly methyl, C3-7-cycloalkyl, more particularly
cyclopropyl, C1-6-alkoxy, more particularly methoxy, NR5R6 or
phenyl groups;
IR4 represents a group chosen from phenyl, naphthyl or
pyridyl groups; it being possible for the R4 group or groups
to be substituted by one or more R3 groups which are
identical to or different from one another;
R5 and R6 represent, independently of one another, a C1-6-
ialkyl group, more particularly a methyl;
R7 represents a hydrogen atom or a C1-6-alkyl group;
R8 represents a hydrogen atom or a C1-6-alkyl, C3-7-cycloalkyl
or C3-7-cycloalkyl-C1_3-alkylene group.
Among the compounds of general formula (I), a second
subgroup of compounds is compoundd of the compouds for
5which:
A, X, Y, Z, m, p, q, n, Rlr R3, R4, R5, Rs, R7 and R8 are as
defined in the general formula (I) or in the first subgroup
as defined above,
and R2 represents a group chosen from a pyridyl,
pyrimidinyl, oxazolyl, isoxazolyl, naphthyl, quinolinyl or
isoquinolinyl.
Among the compounds of general formula (I), a third subgroup
of compounds is compoundd of the compounds for which:
A, X, Y, Z, m, p, q, n, R1, R2, R3, R4, R5 and R6 are as
defined in the general formula (I) or in the subgroups as
defined above;
R7 represents a hydrogen atom;
R8 represents a hydrogen atom or a C1-6-alkyl group, more
particularly a methyl.
The following compounds may be mentioned among the
compounds of the subgroups defined above:
- 2-(methylamino)-2-oxoethyl (5-phenylpyrid-2-yl)
methylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(5-phenylpyrid-2-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(6-phenylpyrid-3-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(2-phenylpyrimidin-5-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(5-phenylpyrimidin-2-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-[6-(4-chlorophenyl)pyrimidin-
4-yl]ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-[6-(4-chlorophenyl)-2-
methylpyrimidin-4-yl]ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-[6-(4-chlorophenyl)-2-
(dimethylamino)pyrimidin-4-yl]ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2~(isoquinolin-7-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(2-phenyl-1,3-oxazol-4-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-[5-(4-chlorophenyl)isoxazol-
3-yl]ethylcarbamate
- 2-amino-2-oxoethyl 3-(pyrid-2-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(pyrid-3-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(pyrid-4-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(pyrimidin-5-yl)propylcarbamate
- 2-(methylamino)-2-oxoethyl 3-[6-(4-chlorophenyl)pyrimidin-
4-yl]propylcarbamate
- 2-(methylamino)-2-oxoethyl 3-[6-(4-chlorophenyl)-2-
n^ethylpyrimidin-4-yl] propylcarbamate
- 2-(methylamino)-2-oxoethyl 3-[6-(4-chlorophenyl)-2-
(dimethylamino)pyrimidin-4-yl]propylcarbamate
- 2-amino-2-oxoethyl 3-(quinolin-2-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(quinolin-4-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(isoquinolin-1-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(isoquinolin-4-yl)propylcarbamate
- 2-(methylamino)-2-oxoethyl 3-[5-(4-chlorophenyl)isoxazol-
3-yl]propylcarbamate
- 2-amino-2-oxoethyl 3-[3-(4-chlorophenyl)isoxazol-5-yl]
propylcarbamate
- 2-(methylamino)-2-oxoethyl 3-[3-(4-chlorophenyl)isoxazol-
5-yl]propylcarbamate
- 2-(methylamino)-2-oxoethyl 3-[3-(4-phenylphenyl)isoxazol-
5-yl]propylcarbamate
- 2-(methylamino)-2-oxoethyl 3-[3-(naphth-2-yl)isoxazol-5-
yl]propylcarbamate
- 2-amino-2-oxoethyl 4-(pyrid-2-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(pyrid-3-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(pyrid-4-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(pyrimidin-5-yl)butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-[6-(4-chlorophenyl)pyrimidin-
4-yl]butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-[6-(4-chlorophenyl)-2-
methylpyrimidin-4-yl]butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-[6-(4-chlorophenyl)-2-
cyclopropylpyrimidin-4-yl]butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-[6-(4-chlorophenyl)-2-
(dimethylamino)pyrimidin-4-yl]butylcarbamate
- 2-amino-2-oxoethyl 4-(quinolin-2-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(quinolin-4-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(isoquinolin-1-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(isoquinolin-4-yl)butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-[5-(4-chlorophenyl)isoxazol-
3-yl]butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-[3-(4-chlorophenyl)isoxazol-
5-yl]butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-[3-(4-phenylphenyl)isoxazol-
5-yl]butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-[3-(naphth-2-yl)isoxazol-5-
yl]butylcarbamate
- 2-amino-2-oxoethyl 5-(pyrid-2-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(pyrid-4-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(pyrimidin-5-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(quinolin-2-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(quinolin-4-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(isoquinolin-1-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(isoquinolin-4-yl)pentylcarbamate
- 2-amino-2-oxoethyl [3-(naphth-1-yl)prop-2-yn-l-yl]
carbamate
i- 2-(methylamino)-2-oxoethyl [3-(naphth-1-yl)prop-2-yn-l-yl]
carbamate
- 2-amino-2-oxoethyl [5-(naphth-1-yl)pent-4-yn-l-yl]
carbamate
- 2-(methylamino)-2-oxoethyl [5-(naphth-1-yl)pent-4-yn-l-yl]
carbamate
- 2-(methylamino)-2-oxoethyl [5-(4-fluoronaphth-1-yl)pent-4-
yn-l-yl]carbamate
- 2-(methylamino)-2-oxoethyl [3-(pyrid-3-yl)isoxazol-5-
ylpropyl]carbamate
- 2-(methylamino)-2-oxoethyl [3-(4-methoxynaphth-l-yl)
isoxazol-5-ylpropyl]carbamate.
Among the compounds of general formula (I), one subfamily of
compounds is compoundd of the compounds corresponding to the
general formula (I'):
(I')
in which
A. is chosen from one or more groups X, Y and/or Z;
X represents a methylene group optionally substituted by one
or two Ci-e-alkyl, C3-7-cycloalkyl or C3-7-cycloalkyl-Ci-3-
alkylene groups;
Y represents either a C2-alkenylene group optionally
substituted by one or two C1-6-alkyl, C3~7-cycloalkyl or C3-7-
cycloalkyl-Ci-3-alkylene groups; or a C2-alkynylene group;
Z represents a group of formula:
m represents an integer ranging from 1 to 5;
p and q represent integers and are defined such that p+q is
a number ranging from 1 to 5;
n represents an integer ranging from 1 to 7;
Rx represents an R2 group optionally substituted by one or
more R3 and/or R4 groups ;
R2 represents a group chosen from a pyridyl, pyrimidinyl,
pyridazinyl, pyrazinyl, triazinyl, pyrrolyl, furyl, thienyl,
imidazolyl, oxazolyl, thiazolyl, pyrazolyl, isoxazolyl,
isothiazolyl, oxadiazolyl, thiadiazolyl, triazolyl,
tetrazolyl, naphthyl, quinolinyl, tetrahydroquinolinyl,
isoquinolinyl, tetrahydroisoquinolinyl, 2-oxo-3,4-
dihydroquinolinyl, l-oxo-3,4-dihydroisoquinolinyl,
quinazolinyl, quinoxalinyl, phthalazinyl, cinnolinyl,
naphthyridinyl, benzofuranyl, dihydrobenzofuranyl,
benzothienyl, dihydrobenzothienyl, indolyl, indolinyl,
indazolyl, isoindolyl, benzimidazolyl, benzoxazolyl,
benzisoxazolyl, benzothiazolyl, benzisothiazolyl,
benzotriazolyl, benzoxadiazolyl, benzothiadiazolyl,
pyrrolopyridyl, furopyridyl, thienopyridyl, imidazopyridyl,
oxazolopyridyl, thiazolopyridyl, pyrazolopyridyl,
isoxazolopyridyl or isothiazolopyridyl;
R3 represents a group chosen from halogen atoms or cyano,
nitro, C1-6-alkyl, C1-6-alkoxy, hydroxyl, C1-6-thioalkyl, C1-6-
fluoroalkyl, C]._6-f luoroalkoxy, C1-6-f luorothioalkyl, NR5R6,
NR5COR6, NR5C02R6, NR5S02R6, COR5, C02R5, CONR5R6, S02R5, S02NR5Rs
or -0-(Ci-3-alkylene)-0- groups;
R4 represents a group chosen from phenyl, phenyloxy,
benzyloxy, naphthyl, pyridyl, pyrimidinyl, pyridazinyl or
pyrazinyl groups; it being possible for the R4 group or
groups to be substituted by one or more R3 groups which are
identical to or different from one another;
R5 and R6 represent, independently of one another, a hydrogen
atom or a C1-6-alkyl group or form, with the atom or atoms
which carry them, a ring chosen from an azetidine,
pyrrolidine, piperidine, morpholine, thiomorpholine, azepine
or piperazine ring, this ring optionally being substituted
by a C1-6-alkyl or benzyl group;
R7 represents a hydrogen atom or a C1-6-alkyl group;
R8 represents a hydrogen atom or a C1-6-alkyl, C3-7-cycloalkyl
or Cs-v-cycloalkyl-Cx^-alkylene group.
Among the compounds of general formula (I'), a first
subgroup of compounds is compoundd of the compounds for
iwhich:
A is chosen from one or more groups X and/or Y;
X represents a methylene group;
Y represents a C2-alkynylene group;
n represents an integer ranging from 1 to 5;
Ri represents an R2 group optionally substituted by one or
more phenyl groups, more particularly by one phenyl;
R2 represents a group chosen from a pyridyl, pyrimidinyl,
pyridazinyl, imidazolyl, oxazolyl, oxadiazolyl, naphthyl,
quinolinyl, isoquinolinyl, dihydroisoquinolinyl, 2-oxo-3,4-
dihydroquinolinyl, indolyl, benzimidazolyl or
pyrrolopyridyl;
|R7 represents a hydrogen atom or a C1_6-alkyl group;
R8 represents a hydrogen atom or a C1-6-alkyl, C3_7-cycloalkyl
or Cs-v-cycloalkyl-Ci-a-alkylene group.
Among the compounds of general formula (I'), a second
subgroup of compounds is compoundd of the compounds for
which:
A, n and Ri are as defined in the first subgroup defined
above;
R7 represents a hydrogen atom;
R8 represents a hydrogen atom or a C1-6-alkyl group, more
particularly a methyl.
Mention may be made, among the compounds of general formula
(I'), of the following compounds:
- 2-(methylamino)-2-oxoethyl (5-phenylpyrid-2-yl)
methylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(5-phenylpyrid-2-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2 -(6-phenylpyrid-3-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(6-phenylpyridazin-3-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(2-phenylpyrimidin-5-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(5-phenylpyrimidin-2-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(isoquinolin-7-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(4-phenyl-lH-imidazol-1-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(2-phenyl-1,3-oxazol-4-yl)
ethylcarbamate
- 2-(methylamino)-2-oxoethyl 2-(5-phenyl-1,2,4-oxadiazol-3-
yl)ethylcarbamate
- 2-amino-2-oxoethyl 3-(pyrid-2-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(pyrid-3-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(pyrid-4-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(pyrimidin-5-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(quinolin-2-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(quinolin-4-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(isoquinolin-1-yl)propylcarbamate
- 2-amino-2-oxoethyl 3-(isoquinolin-4-yl)propylcarbamate
- 2-(methylamino)-2-oxoethyl 3-(4-phenyl-lH-imidazol-1-yl)
propylcarbamate
- 2-(methylamino)-2-oxoethyl 3-(lJf-benzimidazol-1-yl)
propylcarbamate
- 2-amino-2-oxoethyl 4-(pyrid-2-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(pyrid-3-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(pyrid-4-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(pyrimidin-5-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(quinolin-2-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(quinolin-4-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(isoquinolin-1-yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(isoquinolin-4-yl)butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-(lH-benzimidazol-1-yl)
butylcarbamate
- 2-amino-2-oxoethyl 4-(Iff-indol-1-yl)butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-(lff-indol-1-yl)butylcarbamate
- 2-amino-2-oxoethyl 4- (lff-pyrrolo [2 , 3-i>] pyrid-1-yl)
butylcarbamate
- 2-(methylamino)-2-oxoethyl 4- (lff-pyrrolo [2 , 3-Jb] pyrid-1-yl)
butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-(3,4-dihydroisoquinolin-2
(1H) -yl)butylcarbamate
- 2-amino-2-oxoethyl 4-(2-oxo-3,4-dihydroquinolin-l(2H)-yl)
butylcarbamate
- 2-(methylamino)-2-oxoethyl 4-(2-oxo-3,4-dihydroquinolin-l
(2H) -yl)butylcarbamate
- 2-amino-2-oxoethyl 5-(pyrid-2-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(pyrid-4-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(pyrimidin-5-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(quinolin-2-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(quinolin-4-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(isoquinolin-1-yl)pentylcarbamate
- 2-amino-2-oxoethyl 5-(isoquinolin-4-yl)pentylcarbamate
- 2-amino-2-oxoethyl [3-(naphth-1-yl)prop-2-yn-l-yl]
carbamate
- 2-(methylamino)-2-oxoethyl [3-(naphth-1-yl)prop-2-yn-l-yl]
carbamate
- 2-amino-2-oxoethyl [5-(naphth-1-yl)pent-4-yn-l-yl]
carbamate
- 2-(methylamino)-2-oxoethyl [5-(naphth-1-yl)pent-4-yn-l-yl]
carbamate.
The compounds of general formula (I) can comprise one or
more asymmetric carbons. They can exist in the form of
enantiomers or of diastereoisomers. These enantiomers and
diastereoisomers, and their mixtures, including the racemic
mixtures, form part of the invention.
The compounds of formula (I) can exist in the form of bases
or of addition salts with acids. Such addition salts form
"part of the invention.
'These salts are advantageously prepared with
pharmaceutically acceptable acids but the salts of other
acids, of use, for example, for the purification or the
isolation of the compounds of formula (I), also form part of
the invention.
The compounds of general formula (I) can exist in the form
of hydrates or of solvates, namely in the form of
combinations or of associations with one or more molecules
of water or with a solvent. Such hydrates and solvates also
form part of the invention.
In the context of the invention:
Ct-Z, where t and z can take the values from 1 to 7, is
understood to mean a carbon chain which, can have from t
to z carbon atoms, for example Ci_3 a carbon chain which
can have from 1 to 3 carbon atoms;
alkyl is understood to mean a saturated, linear or
branched, aliphatic group; for example a C1-6-alkyl group
represents a linear or branched carbon chain of 1 to 6
carbon atoms, more particularly a methyl, ethyl, propyl,
isopropyl, butyl, isobutyl, tert-butyl, pentyl or hexyl;
alkylene is understood to mean a saturated, linear or
branched, divalent alkyl group, for example a Ci_3-
alkylene group represents a linear or branched divalent
carbon chain of 1 to 3 carbon atoms, more particularly a
methylene, ethylene, 1-methylethylene or propylene;
cycloalkyl is understood to mean a cyclic alkyl group,
for example a C3-7-cycloalkyl group represents a cyclic
carbon group of 3 to 7 carbon atoms, more particularly a
cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl or
cycloheptyl;
alkenylene is understood to mean an unsaturated divalent
aliphatic group comprising 2 carbons, more particularly
an ethylene;
C2-alkynylene is understood to mean a -C=C- group;
alkoxy is understood to mean an -O-alkyl group comprising
a saturated, linear or branched, aliphatic chain;
thioalkyl is understood to mean an -S-alkyl group
comprising a saturated, linear or branched, aliphatic
chain;
fluoroalkyl is understood to mean an alkyl group, one or
more hydrogen atoms of which have been substituted by a
fluorine atom;
fluoroalkoxy is understood to mean an alkoxy group, one
or more hydrogen atoms of which have been substituted by
a fluorine atom;
fluorothioalkyl is understood to mean a thioalkyl group,
one or more hydrogen atoms of which have been substituted
by a fluorine atom;
halogen is understood to mean a fluorine, a chlorine, a
bromine or an iodine.
The compounds of the invention can be prepared according to
(various methods illustrated by the schemes which follow.
Scheme 1
h. first method (Scheme 1) for producing the compounds of
general formula (I) consists in reacting an amine of general
formula (II) , in which Rx, A and n are as defined in the
general formula (I), with a carbonate of general formula
(III) in which V represents a hydrogen atom or a nitro
group, R7 is as defined in the general formula (I) and R
represents a methyl or ethyl group. The carbamate-ester of
general formula (IV) thus obtained is subsequently converted
to the compound of general formula (I) by aminolysis using
an amine of general formula R8NH2, where R8 is as defined in
the general formula (I) . The aminolysis reaction can be
carried out in a solvent, such as methanol or ethanol, or a
fixture of solvents, such as methanol and tetrahydrofuran.
Another method (Scheme 2) for producing the compounds of
general formula (I) consists in reacting a derivative of
general formula (V), in which Rlf n and A are as defined in
the general formula (I) and W represents a hydroxyl,
mesylate or tosylate group or a chlorine, bromine or iodine
atom, with an oxazolidinedione of general structure (VI),
in which R7 is as defined in the general formula (I) , to
provide the oxazolidinedione derivative of general structure
(VII).
In the case where W represents a hydroxyl group, the
reaction can be carried out according to the conditions of
Mitsunobu (Synthesis, 1981, 1-28), for example, by the
action of diethyl or diisopropyl azodicarboxylate in the
presence of triphenylphosphine. In the case where W
represents a chlorine, bromine or iodine atom or a mesylate
or tosylate group, the reaction can be carried out in the
presence of a base, such as 1,1,3,3-tetramethylguanidine,
sodium hydride or sodium tert-butoxide, in a solvent, such
as tetrahydrofuran, acetonitrile or dimethylformamide, at a
temperature of between 0°C and 80°C. The oxazolidinedione
derivative of general formula (VII) thus obtained is
subsequently converted to the compound of general formula
(I) by aminolysis using an amine of general formula R8NH2,
where R8 is as defined in the general formula (I).
The compounds of general formula (I) , (IV) and (VII) in
which Ri represents a group of aryl-aryl, aryl-heteroaryl,
heteroaryl-aryl or heteroaryl-heteroaryl type can also be
prepared by reaction of the corresponding compounds of
general formula (I) , (IV) or (VII) for which R2 is
substituted by a chlorine, bromine or iodine atom or by a
triflate group in the position where the R4 group has to be
introduced with an aryl- or heteroarylboronic acid
derivative according to the Suzuki reaction conditions
(Chem. Rev., 1995, 9_5, 2457-2483) or with an aryl- or
heteroaryltrialkylstannane derivative according to the
Stille reaction conditions (Angew. Chem. Int. Ed., 1986, 25,
504-524) .
The carbonates of general formula (III) can be prepared
according to any method described in the literature, for
example by reaction of an alcohol of general formula
HOCHR5COOR, where R represents a methyl or ethyl group, with
phenyl or 4-nitrophenyl chloroformate in the presence of a
base, such as triethylamine or diisopropylethylamine.
The compounds of general formulae (II), (V) and (VI) and the
amines of general formula R8NH2, when their method of
preparation is not described, are commercially available or
are described in the literature or can be prepared according
to various methods described in the literature or known to a
person skilled in the art.
The compounds of general formula (IV) in which n, A, Ri and
R7 are as defined in the general formula (I) and R
represents a methyl or ethyl group are novel and also form
part of the invention, the following compounds being
excluded:
- ethyl 2- [ ({ [2-(5-hydroxy-lH-indol-3-yl)ethyl] amino}
carbonyl)oxy]propanoate;
- ethyl 2- [ ({ [2-[5-(phenylmethoxy)-lH-indol-3-yl]ethyl]
amino}carbonyl)oxy]propanoate.
'The compounds of general formula (IV) are of use as
synthetic intermediates for the preparation of the compounds
of general formula (I).
The compounds of general formula (VII) in which n, A, Ri and
>R7 are as defined in the general formula (I) are novel and
also form part of the invention, the following compounds
being excluded:
- 2- [2-(2,4-dioxo-3-oxazolidinyl)ethyl]-1-methylpyridinium
iodide;
I- 2-[2-(2,4-dioxo-3-oxazolidinyl)ethyl]-5-ethyl-l-
methylpyridinium iodide;
- 4-[2-(2,4-dioxo-3-oxazolidinyl)ethyl]-1-methylpyridinium
iodide;
- 5-methyl-3-[2-(4-pyridyl)ethyl]-2,4-oxazolidinedione
^hydrochloride ;
- 5-methyl-3-[2-(2-pyridyl)ethyl]-2,4-oxazolidinedione
hydrochloride;
- 3-[5-(imidazo[1,2-a]pyridin-5-yl)pentyl]-2,4-
oxazolidinedione;
- 3-[2-(5-methyl-4-thiazolyl)ethyl]-2,4-oxazolidinedione;
- 3- [2-(lH-pyrrol-2-yl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(2-thienyl)ethyl]-2,4-oxazolidinedione;
- 3- [3-(2-thienyl)propyl]-2,4-oxazolidinedione;
- 3-[4-(2-thienyl)butyl]-2,4-oxazolidinedione;
- 5-methyl-3-[2-(2-thienyl)ethyl]-2,4-oxazolidinedione;
- 5-ethyl-3-[2-(2-thienyl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(3-thienyl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(5-methyl-2-thienyl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(5-acetyl-2-thienyl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(5-bromo-2-thienyl)ethyl]-2,4-oxazolidinedione;
- 5-[2-(2,4-dioxo-3-oxazolidinyl)ethyl]-2-
thiophenecarbaldehyde;
- 3-[3-(1-indolinyl)propyl]-2,4-oxazolidinedione;
- 3-[3-(1-indolinyl)propyl]-5-methyl-2,4-oxazolidinedione;
- 3-[2-(2-pyridyl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(5-ethyl-2-pyridyl)ethyl]-5-methyl-2,4-
oxazolidinedione;
- 5-ethyl-3-[2-(5-ethyl-2-pyridyl)ethyl]-2,4-
oxazolidinedione;
- 3-[2-(5-ethyl-2-pyridyl)ethyl]-5-isopropyl-2,4-
oxazolidinedione;
- 3-[2-(4-pyridyl)ethyl]-2,4-oxazolidinedione;
- 5-ethyl-3-[2-(4-pyridyl)ethyl]-2,4-oxazolidinedione;
- 5-ethyl-3-[2-(2-pyridyl)ethyl]-2,4-oxazolidinedione;
- 5-isopropyl-3-[2-(4-pyridyl)ethyl]-2,4-oxazolidinedione;
- 5-isopropyl-3-[2-(2-pyridyl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(5-ethyl-2-pyridyl)ethyl]-2,4-oxazolidinedione.
The compounds of general formula (VII) are of use as
synthetic intermediates for the preparation of the compounds
of general formula (I).
A subgroup of compounds of general formula (VII) is composed
of the compounds for which:
n, A, Rx and R7 are as defined in the general formula (I)
provided that:
- when R2 is a pyrrolyl, imidazo [1,2-a] pyridyl or indolinyl
group, then R2 is substituted by one or more R3 and/or
R4 groups ;
- when R2 is a pyridyl group, then R2 is substituted by one
or more R3 and/or R4 groups where R3 is other than a methyl
or than an ethyl;
- when R2 is a thienyl group, then R2 is substituted by one
or more R3 and/or R4 groups where R3 is other than a bromine,
than a methyl or than a CHO or COCH3 group;
- when R2 is a thioazolyl group substituted by an R3 group,
then R3 is other than a methyl.
The examples which will follow illustrate the preparation of
a few compounds of the invention. These examples are not
limiting and only illustrate the invention. The
microanalyses, the IR and NMR spectra and/or the LC-MS
(Liquid Chromatography coupled to Mass Spectroscopy) confirm
the structures and the purities of the compounds obtained.
'M.p. (°C) represents the melting point in degrees Celsius.
The numbers shown in brackets in the titles of the examples
correspond to those in the 1st column in the table below.
Example 1 (compound No. 3)
2-(methylamino)-2-oxoethyl 2-(6-phenylpyrid-3-yl)
ethylcarbamate

il.l. phenylmethyl 2-(6-phenylpyrid-3-yl)ethylcarbamate
A solution of 3.12 g (12.80 mmol) of 9-borabicyclo[3.3.1]
nonane (BBN) in 100 ml of tetrahydrofuran is added dropwise,
under an inert atmosphere, to a solution, cooled to
approximately -10°C, of 4.5 g (25.60 mmol) of phenylmethyl
ethenylcarbamate (Org. Proc. Res. & Develop.; 2002, 6, 74-
77) in 25 ml of tetrahydrofuran while keeping the
temperature of the reaction medium below -10°C. Stirring is
continued at -10°C for 1 hour and then at ambient
temperature for 4 hours. 18 ml of an aqueous sodium
hydroxide solution (3N) are added and stirring is continued
for 1 hour. 4.0 g (17.1 mmol) of 5-bromo-2-phenylpyridine
and 2.12 g (2.6 mmol) of PdCl2 (dppf) • CH2C12 (dppf: 1,1'-bis
(diphenylphosphino)ferrocene) are subsequently added.
Stirring is continued at ambient temperature for 18 hours.
The reaction medium is cooled with a bath of ice-cold water
and then 40 ml of a 2/1 mixture of a buffer solution (pH=7)
and of 30% aqueous hydrogen peroxide solution are added
dropwise. The mixture is left stirring at ambient
temperature for 1 hour. The aqueous phase is separated and
is then extracted three times with dichloromethane. The
organic phases are combined and are washed successively with
water and a saturated aqueous sodium chloride solution. The
organic phase is dried over sodium sulphate and the filtrate
is concentrated under reduced pressure. The residue thus
obtained is purified by chromatography on silica gel,
elution being carried out with a 20/80 mixture of ethyl
acetate and of cyclohexane.
2.9 g of product are obtained in the form of a white solid.
M.p. (°C): 118°C
1.2. 2 -(6-phenylpyrid-3-yl)ethanamine
9 ml of 33% hydrobromic acid in acetic acid are added
dropwise to a solution, cooled to approximately 0°C, of 1.8
g (5.42 mmol) of phenylmethyl 2-(6-phenylpyrid-3-yl)
ethylcarbamate, prepared in stage 1.1., in 50 ml of
dichloromethane. Stirring is continued at ambient
temperature for 2 hours. The mixture is concentrated under
reduced pressure and the residue is taken up in
dichloromethane and a saturated aqueous sodium
hydrogencarbonate solution. The aqueous phase is separated
and is extracted twice with ethyl acetate. The combined
organic phases are washed with a saturated aqueous sodium
chloride solution and dried over sodium sulphate, and the
filtrate is concentrated under reduced pressure.
0.86 g of product is obtained in the form of an oil used as
is in the following stage.
L.3. ethyl ({ [2-(6-phenylpyrid-3-yl)ethyl]amino}carbonyl)-
Dxyacetate
k solution of 0.85 g (4.29 mmol) of 2-(6-phenylpyrid-3-yl)
sthanamine, prepared in stage 1.2., and of 1.25 g
(5.58 mmol) of ethyl [(phenyloxycarbonyl)oxy]acetate (J.
Vied. Chem. , 1999, 42, 277-290) in 40 ml of toluene is heated
at 60°C for 12 hours. The mixture is allowed to return to
ambient temperature, the insoluble material is separated by
filtration and the filtrate is concentrated under reduced
pressure. The residue thus obtained is purifed by
chromatography on silica gel, elution being carried out with
a 3 0/70 mixture of ethyl acetate and of cyclohexane.
1.06 g of product are thus obtained in the form of an oil.
1.4. 2-(methylamino)-2-oxoethyl 2-(6-phenylpyrid-3-yl)
ethylcarbamate
4.6 ml (9.17 mmol) of a solution of methylamine (2M) in
tetrahydrofuran are added to a solution of 1.0 g (3.06 mmol)
of ethyl ({[2-(6-phenylpyrid-3-yl)ethyl]amino}carbonyl)-
oxyacetate, obtained in stage 1.3., in 6 ml of methanol.
Stirring is continued at ambient temperature for 4 hours.
After concentrating under reduced pressure, the residue
obtained is purified by chromatography on silica gel,
elution being carried out with a 95/5 mixture of
dichloromethane and of methanol. A white solid is obtained
and is recrystallized from ethyl acetate.
0.510 g of product is obtained in the form of a white solid.
LC-MS: M+H = 314
M.p. (°C): 130-132°C
XH NMR (CDC13) 5 (ppm) : 2.85 (d, 3H) , 2.95 (t, 2H) , 3.55 (q,
2H), 4.60 (s, 2H), 5.05 (broad s, 1H), 6.10 (broad s, 1H) ,
7.50 (m, 3H), 7.70 (m, 2H) , 8.0 (d, 2H) , 8.60 (s, 1H).
Example 2 (compound No. 56)
2-(methylamino)-2-oxoethyl 4-(lH-indol-1-yl)butylcarbamate

2.1. 1-(4-bromobutyl)-lH-indole
0.96 g (17.07 mmol) of sodium hydroxide is added in small
'portions to a solution, cooled by a bath of ice-cold water,
of 2 g (17.07 mmol) of lH-indole and of 1.15 ml (51.22 mmol)
of 1,4-dibromobutane in 80 ml of dimethylformamide. The bath
is removed and stirring is continued at ambient temperature
for 15 hours.
After concentrating under reduced pressure, the residue is
taken up in water and ethyl acetate. The aqueous phase is
separated and extracted twice with ethyl acetate, the
combined organic phases are washed with a saturated aqueous
sodium chloride solution and dried over sodium sulphate, and
Ithe filtrate is concentrated under reduced pressure. The
residue thus obtained is purified by chromatography on
silica gel, elution being carried out with a 1/99 mixture of
ethyl acetate and of cyclohexane.
3 g of product are obtained in the form of a yellow oil.
2.2. 3-[4-(lH-indol-1-yl)butyl]-1,3-oxazolidine-2,4-dione
A solution of 3 g (11.90 mmol) of 1-(4-bromobutyl)-1H-
indole, prepared in stage 2.1., of 2.41 g (23.80 mmol) of
1,3-oxazolidin-2,4-dione (J. Med. Chem., 1991, 34, 1538-
11544) and of 2.74 g (23.80 mmol) of 1,1,3,3-
tetramethylguanidine in 30 ml of tetrahydrofuran is brought
to reflux for 14 hours under an inert atmosphere.
The mixture is concentrated under reduced pressure. The
residue is taken up in ethyl acetate and water, the aqueous
phase is separated and extracted twice with ethyl acetate,
and the combined organic phases are washed with a saturated
aqueous sodium chloride solution and dried over sodium
sulphate. After evaporation of the solvent, the residue
obtained is purified by chromatography on silica gel,
elution being carried out with a 10/90 and then 20/80
mixture of ethyl acetate and of cyclohexane.
2 g of product are obtained in the form of a white solid.
2.3. 2-(methylamino)-2-oxoethyl 4-(lH-indol-1-yl)butyl-
carbamate
The procedure is as described in Example 1 (stage 1.4.) .
Starting from 0.90 g (3.31 mmol) of 3-[4-(lH-indol-1-yl)
butyl]-1,3-oxazolidine-2,4-dione, obtained in stage 2.2.,
and from 5 ml (9.93 mmol) of a solution of methylamine (2M)
in tetrahydrofuran, and after chromatography on silica gel,
elution being carried out with a 98/2 mixture of
dichloromethane and of methanol, 0.70 g of product is
obtained in the form of an amorphous white solid.
LC-MS: M+H = 304
M.p. (°C): 64-67°C
XH NMR (CDC13) 5 (ppm) : 1.50 (m, 2H) , 1.90 (m, 2H) , 2.80 (d,
3H) , 3.20 (q, 2H) , 4.20 (t, 2H) , 4.55 (s, 2H) , 5.95 (broad
s, 1H), 6.10 (broad s, 1H), 6.50 (d, 1H), 7.20 (m, 3H), 7.40
(d, 1H), 7.70 (d, 1H).
Example 3 (compound No. 71)
2-amino-2-oxoethyl [5-(naphth-1-yl)pent-4-yn-l-yl]carbamate

3.1. 5-(naphth-l-yl)pent-4-yn-l-ol
A solution of 0.59 g (7 mmol) of 4-pentyn-l-ol in 3 ml of
acetonitrile is added dropwise under an argon atmosphere to
a suspension of 1.78 g (7 mmol) of 1-iodonaphthalene, of
H.48 ml (10.5 mmol) of triethylamine, of 0.066 g (0.35 mmol)
of cuprous iodide and of 0.147 g (0.21 mmol) of di
(triphenylphosphine)palladium dichloride (Ph3P)2PdCl2 in 4 ml
of acetonitrile. The mixture is stirred at ambient
temperature for 3 hours, 4 g of silica are then added and
the mixture is evaporated to dryness. The product is
purified by chromatography on silica gel, elution being
carried out with an 80/20 and then 60/40 mixture of
cyclohexane and of ethyl acetate, to produce 1.22 g of
product in the form of a yellow oil.
3.2. 5-(naphth-1-yl)pent-4-yn-l-yl methanesulphonate
A solution of 0.85 g (7.42 mmol) of methanesulphonyl
chloride in 5 ml of dichloromethane is added dropwise to a
solution, cooled with an ice bath, of 1.2 g (5.71 mmol) of
5-(naphth-1-yl)pent-4-yn-l-ol, obtained in stage 3.1., and
of 1.6 ml (11.4 mmol) of triethylamine in 12 ml of
dichloromethane. The mixture is stirred at 0°C for 1 hour
and then at ambient temperature for 2 hours. 2 5 ml of water
and 75 ml of dichloromethane are subsequently added. The
lorganic phase is separated by settling and is washed with 25
ml of water and then with 25 ml of a saturated aqueous
sodium chloride solution. It is dried over magnesium
sulphate and evaporated to dryness to produce 1.68 g of
product in the form of an orange oil used directly in the
following stage.
3.3. 3-[5-(naphth-1-yl)pent-4-yn-l-yl]-1,3-oxazolidine-2,4-
dione.
1.64 g (5.70 mmol) of 5-(naphth-1-yl)pent-4-yn-l-yl
methanesulphonate, obtained in stage 3.2., and 0.72 g
(7.1 mmol) of 1,3-oxazolidine-2,4-dione are dissolved in 9
ml of tetrahydrofuran. 1.3 g (11.4 mmol) of 1,1,3,3-tetra-
methylguanidine in solution in 3 ml of tetrahydrofuran are
added. The mixture is heated at reflux overnight. 25 ml of
ethyl acetate and 6 g of silica are added. The mixture is
evaporated to dryness. The residue is purified by
chromatography on silica gel, elution being carried out with
a 90/10 and then 80/20 and 70/30 mixture of cyclohexane and
of ethyl acetate, to produce 1.33 g of product in the form
of a white solid.
M.p. (°C): 99-101°C
3.4. 2-amino-2-oxoethyl [5-(naphth-1-yl)pent-4-yn-l-yl]
carbamate
0.75 g (2.56 mmol) of 3 - [5-(naphth-1-yl)pent-4-yn-l-yl]-1,3-
oxazolidine-2,4-dione, obtained in stage 3.3., is dissolved
in 18 ml of a 7M solution of ammonia (126 mmol) in methanol.
The mixture is left overnight at ambient temperature. 3 g of
silica are subsequently added and the mixture is evaporated
to dryness. The residue is purified by chromatography on
silica gel, elution being carried out with a 98/2 and then
96/4 and 94/6 mixture of dichloromethane and of methanol.
The product is subsequently recrystallized from a mixture of
ethyl acetate and of diisopropyl ether to produce 0.59 g of
product in the form of white crystals.
LC-MS: M+H = 311
M.p. (°C): 105-108°C
XH NMR (CDC13) 5 (ppm) : 8.33 (d, 1H) , 7.85 (m, 2H) , 7.70-7.40
(m, 4H), 5.90 (broad m, 1H), 5.50 (broad m, 1H), 5.20 (broad
m, 1H) , 4.55 (s, 2H) , 3.50 (m, 2H) , 2.70 (t, 2H) , 1.95 (m,
2H) .
Example 4 (compound No. 29)
2-(methylamino)-2-oxoethyl 3-[3-(4-chlorophenyl)isoxazol-5-
yl]propylcarbamate

4.1. 3-[3-(4-chlorophenyl)isoxazol-5-yl]propan-1-ol
1.6 ml (11.5 mmol) of triethylamine are added dropwise to a
solution, cooled with an ice bath, of 1.18 ml (12.6 mmol) of
pent-4-yn-l-ol and of 2.0 g (10.5 mmol) of 4-chloro-N-
hydroxybenzenecarboximidoyl chloride (J. Med. Chem., 1998,
41, 4556-4566) in 30 ml of dichloromethane. Reaction is
allowed to take place at ambient temperature overnight. 50
ml of dichloromethane and 70 ml of water are added. The
organic phase is separated and the aqueous phase is
extracted with 2 times 50 ml of dichloromethane. The organic
phases are subsequently washed with 2 times 70 ml of water
and then with 70 ml of a saturated aqueous sodium chloride
^solution, dried over sodium sulphate and evaporated. The
residue is purified by chromatography on silica gel, elution
being carried out with a mixture of cyclohexane and of ethyl
acetate, to produce 1.3 g (5.47 mmol) of product in the form
of a white solid.
M.p. (°C): 60-62°C
4.2. 3-{3-[3-(4-chlorophenyl)isoxazol-5-yl]propyl}-1,3-
oxazolidine-2,4-dione
0.5 ml (6.0 mmol) of methanesulphonyl chloride is added
'dropwise to a solution, cooled with an ice bath, of 1.30 g
(5.47 mmol) of 3-[3-(4-chlorophenyl)isoxazol-5-yl]propan-1-
ol, prepared in stage 4.1., and of 0.9 ml (7.11 mmol) of
triethylamine in 70 ml of dichloromethane. The mixture is
subsequently stirred at room temperature for 2 hours. 70 ml
of water are added and the organic phase is separated. The
aqueous phase is extracted with 2 times 70 ml of
dichloromethane. The organic phases are subsequently washed
with 100 ml of water and 100 ml of a saturated aqueous
sodium chloride solution, dried over sodium sulphate and
evaporated.
The residue is redissolved in 60 ml of tetrahydrofuran, and
0.9 g (8.9 mmol) of 1,3-oxazolidine-2,4-dione and 1.1 ml
(8.7 mmol) of 1,1,3,3-tetramethylguanidine are added. The
mixture is heated at 65°C overnight. It is taken up in a
•mixture of 100 ml of water and of 100 ml of ethyl acetate.
The organic phase is separated and the aqueous phase is
extracted with 2 times 80 ml of ethyl acetate. The organic
phases are washed with 100 ml of water and then with 100 ml
of a saturated aqueous sodium chloride solution, dried over
5sodium sulphate and evaporated. The residue is purified by
chromatography on silica gel, elution being carried out with
a 90.5/0.5 mixture of dichloromethane and of methanol, to
produce 1.0 g (3.1 mmol) of product in the form of a white
solid.
4.3. 2-(methylamino)-2-oxoethyl 3-[3-(4-chlorophenyl)
isoxazol-5-yl]propylcarbamate
0.6 g (1.87 mmol) of 3-{3-[3-(4-chlorophenyl)isoxazol-5-yl]
propyl}-1,3-oxazolidine-2,4-dione, prepared in stage 4.2.,
is dissolved in a mixture of 8 ml of tetrahydrofuran and of
15 ml of methanol. 2.8 ml of a 2M solution of methylamine
(5.6 mmol) in tetrahydrofuran are added. Reaction is allowed
to take place at ambient temperature overnight and then the
mixture is evaporated. The residue is purified by
chromatography on silica gel, elution being carried out with
a 98/2 and then 95/5 and 90/10 mixture of dichloromethane
and of methanol. The product is recrystallized from a
mixture of ethyl acetate and of methanol to produce 0.4 9 g
(1.4 mmol) of white crystals.
35LC-MS: M+H = 352
M.p. (°C): 158-160°C
XH NMR (CDC13) 5 (ppm) : 7.75 (d, 2H) , 7.45 (d, 2H) , 6.35
(s, 1H), 6.10 (broad s, 1H), 5,00 (broad s, 1H), 4.60 (s,
2H) , 3.35 (m, 2H) , 2.85 (m+d, 5H), 2.05 (m, 2H).
Example 5 (compound No. 20)
2-(methylamino)-2-oxoethyl 3-[6-(4-chlorophenyl)pyrimidin-4-
yl]propylcarbamate

)5.1. 1-(4-chlorophenyl)-6-(tetrahydro-2H-pyran-2-yloxy)hex-
2-yn-l-ol
61.5 ml of 1.6M solution of n-butyllithium (98,4 mmol) in
hexane are added dropwise to a solution, cooled to -78°C
under argon, of 13.25 g (78.8 mmol) of 2-(pent-4-yn-l-yloxy)
tetrahydro-2H-pyran in 13 0 ml of anhydrous tetrahydrofuran.
Stirring is continued at -78°C for 1 hour and then a
solution of 12.18 g (86.6 mmol) of 4-chlorobenzaldehyde in
40 ml of tetrahydrofuran is added dropwise. Stirring is
continued at -78°C for 2 hours and then the solution is
'reheated to 0°C and is poured onto 300 ml of a saturated
aqueous ammonium chloride solution. Extraction is carried
out with 450 ml of ethyl acetate. The organic phase is
washed with 50 ml of water and then with 50 ml of a
saturated aqueous sodium chloride solution. The organic
phase is dried over sodium sulphate and evaporated. The
residue is purified by chromatography on silica gel, elution
being carried out with a 70/30 mixture of n-hexane and of
ethyl acetate, to produce 16.64 g (53.88 mmol) of product in
the form of a colourless oil.
5.2. 1-(4-chlorophenyl)-6-(tetrahydro-2H-pyran-2-yloxy)hex-
2-yn-l-one
A solution of 16.60 g (53.7 mmol) of 1-(4-chlorophenyl)-6-
(tetrahydro-2H-pyran-2-yloxy)hex-2-yn-l-ol, prepared in
stage 5.1., is added dropwise to a suspension, cooled with
an ice bath, of 93 g (1.07 mol) of manganese dioxide in 500
ml of dichloromethane. Stirring is continued for 1.5 hours,
then the mixture is filtered through celite and the filter
cake is rinsed with dichloromethane. The filtrates are
•evaporated to produce 16.3 g (53.1 mmol) of product in the
form of a yellowish oil.
5.3. 4-(4-chlorophenyl)-6-[3-(tetrahydro-2H-pyran-2-yloxy)
propyl]pyrimidine
)A mixture of 3.60 g (11.73 mmol) of 1-(4-chlorophenyl)-6-
(tetrahydro-2H-pyran-2-yloxy)hex-2-yn-l-one, prepared in
stage 5.2., of 9.45 g (117 mmol) of formamidine
hydrochloride and of 25 g (234 mmol) of sodium carbonate in
suspension in 108 ml of acetonitrile and 0.1 ml of water is
'stirred at 40°C for 5 hours. The mixture is subsequently
taken up in 600 ml of water and 400 ml of a saturated
aqueous sodium carbonate solution. The organic phase is
separated by settling, washed with 200 ml of water and 200
ml of a saturated aqueous sodium chloride solution, dried
lover sodium sulphate and evaporated. The residue is purified
by chromatography on silica gel, elution being carried out
with a 70/30 mixture of n-hexane and of ethyl acetate, to
produce 3.22 g (9.67 mmol) of product in the form of a
yellowish oil.
5.4. 3-[6-(4-chlorophenyl)pyrimidin-4-yl]propan-1-ol
3.22 g (9.67 mmol) of 4-(4-chlorophenyl)-6-[3-(tetrahydro-
2ff-pyran-2-yloxy) propyl] pyrimidine, prepared in stage 5.3.,
are dissolved in 32 ml of methanol, and 16 ml of a 4N
solution of hydrochloric acid in dioxane are added. The
mixture is stirred at ambient temperature for 1.5 hours and
then 150 ml of a half-saturated aqueous sodium
hydrogencarbonate solution are added portionwise. Extraction
is carried out with 350 ml of ethyl acetate. The organic
Iphase is washed with 50 ml of water and 50 ml of a saturated
aqueous sodium chloride solution, dried over sodium sulphate
and evaporated to produce 2.3 3 g (9.36 mmol) of product in
the form of a white solid.
M.p. (°C): 75-76°C
5.5. 3-{3-[6-(4-chlorophenyl)pyrimidin-4-yl]propyl} -1,3-
oxazolidine-2,4-dione
0.4 ml of a 40% solution of diethyl azodicarboxylate
(0.9 mmol) in toluene is added to a solution, cooled with an
ice bath, of 0.111 g (0.44 mmol) of 3-[6-(4-chlorophenyl)-
pyrimidin-4-yl]propan-1-ol, prepared in stage 5.4., of 0.077
g (0.76 mmol) of 1,3-oxazolidine-2,4-dione and of 0.235 g
(0.89 mmol) of triphenylphosphine in 4 ml of
tetrahydrofuran. The mixture is subsequently stirred at
ambient temperature overnight. It is taken up in a mixture
of ethyl acetate and of water. The organic phase is washed
with a saturated aqueous sodium chloride solution, dried
over sodium sulphate and evaporated. The residue is purified
by chromatography on silica gel, elution being carried out
with a 97/3 mixture of dichloromethane and of methanol, to
produce 0.117 g (0.35 mmol) of product in the solid form.
5.6. 2-(methylamino)-2-oxoethyl 3-[6-(4-chlorophenyl)
pyrimidin-4-yl]propylcarbamate
0.113 g (0.34 mmol) of 3-{3-[6-(4-chlorophenyl)pyrimidin-4-
yl]propyl}-1,3-oxazolidine-2,4-dione, prepared in stage
5.5., is redissolved in a mixture of 4 ml of ethanol, 1 ml
of methanol and 1 ml of dichloromethane. 2 ml of an 8M
solution of methylamine (16 mmol) in ethanol are added. The
mixture is stirred at ambient temperature for 2 hours and is
'then evaporated. The solid residue is taken up in diethyl
ether to produce 0.12 7 g (0.34 mmol) of product in the form
of a white solid.
LC-MS: M+H = 363
M.p. (°C): 147-149°C
XH NMR (CDC13) 5 (ppm) : 9.15 (s, 1H) , 8.05 (d, 2H) , 7.65 (s,
1H) , 7.55 (d, 2H) , 6.15 (broad s, 1H) , 5.30 (broad s, 1H) ,
4.55 (s, 2H), 3.35 (m, 2H), 2.85 (m+d, 5H), 2.10 (m, 2H).
The chemical structures and the physical properties of a few
compounds according to the invention are illustrated in the
following Table 1.
In this table:
- all the compounds are in the free base form,
isopropyl, n-butyl and t-butyl respectively represent
isopropyl, linear butyl and tert-butyl groups.
Table 1

(I)
The compounds of the invention have formed the subject of
pharmacological trials which make it possible to determine
their inhibitory effect on the enzyme FAAH (Fatty Acid amido
Hydrolase).
The inhibitory activity was demonstrated in a radioenzymatic
test based on the measurement of the product of hydrolysis
( (1-3H) ethanolamine) of ( (1-3H) ethanolamine)-anandamide by
FAAH {Life Sciences (1995), 56, 1999-2005 and Journal of
>Pharmacology and Experimental Therapeutics (1997), 283, 729-
734). Thus, mouse brains (minus the cerebellum) are removed
and stored at -80°C. The membrane homogenates are prepared
at the time of use by homogenization of the tissues with a
Polytron in a 10 mM Tris-HCl buffer (pH 8.0) comprising
150 mM NaCl and 1 mM EDTA. The enzymatic reaction is
subsequently carried out in 70 ul of buffer comprising
bovine serum albumin free from fatty acids (1 mg/ml). The
test compounds, at various concentrations, the ( (1-3H)
ethanolamine)-anandamide (specific activity of 15-20
Ci/mmol), diluted to 10 uM with non-radiolabelled
anandamide, and the membrane preparation (400 ug of frozen
tissue per assay) are successively added. After 15 minutes
at 25°C, the enzymatic reaction is halted by addition of 140
ul of chloroform/methanol (2:1). The mixture is stirred for
10 minutes and is then centrifuged at 3500 g for 15 minutes.
An aliquot (30 ul) of the aqueous phase comprising the (1-
3H)ethanolamine is counted by liquid scintillation.
Under these conditions, the most active compounds of the
invention exhibit IC50 values (concentration which inhibits
'the control enzymatic activity of FAAH by 50%) of between
0.001 and 1 uM.
For example, compound No. 6 8 in the table exhibits an IC50 of
0.267 uM.
It is therefore apparent that the compounds according to the
invention have an inhibitory activity on the enzyme FAAH.
The in vivo activity of the compounds of the invention was
evaluated in a test for analgesia.
Thus, the intraperitoneal (i.p.) administration of PBQ
(phenylbenzoquinone, 2 mg/kg in a 0.9% sodium chloride
solution comprising 5% of ethanol) to male 0F1 mice weighing
25 to 30 g causes abdominal tractions, on average 30
twisting or contracting motions during the period from 5 to
15 minutes after injection. The test compounds are
administered, orally (p.o.) or intraperitoneally (i.p.) in
suspension in 0.5% Tween 80, 60 minutes or 120 minutes
before the administration of PBQ. Under these conditions,
the most powerful compounds of the invention reduce by 3 5 to
70% the number of tractions induced by the PBQ, within a
range of doses of between 1 and 3 0 mg/kg.
For example, compound No. 4 8 in the table reduces by 53% and
by 62% the number of tractions induced by the PBQ, at a dose
of 10 mg/kg p.o., at 60 minutes and at 120 minutes
respectively.
The enzyme FAAH (Chemistry and Physics of Lipids, (2000) ,
108, 107-121) catalyses the hydrolysis of endogenous
derivatives of amides and esters of various fatty acids,
such as N-arachidonoylethanolamine (anandamide),
W-palmitoylethanolamine, W-oleoylethanolamine, oleamide or
2-arachidonoylglycerol. These derivatives have various
pharmacological activities by interacting, inter alia, with
the cannabinoid and vanilloid receptors.
The compounds of the invention block this decomposition
pathway and increase the tissue level of these endogenous
'substances. They can therefore be used in the prevention and
treatment of pathologies in which endogenous cannabinoids
and/or any other substrate metabolized by the enzyme FAAH
are involved.
Mention may be made, for example, of the following diseases
and conditions:
Pain, in particular acute or chronic pain of neurogenic
type: migraine, neuropathic pain, including forms associated
with the herpes virus and with diabetes;
acute or chronic pain associated with inflammatory diseases:
arthritis, rheumatoid arthritis, osteoarthritis,
spondylitis, gout, vasculitis, Crohn's disease, irritable
bowel syndrome;
acute or chronic peripheral pain;
dizziness, vomiting, nausea, in particular resulting from
chemotherapy;
eating disorders, in particular anorexia and cachexia of
ivarious natures;
neurological and psychiatric pathologies: tremors,
dyskinesias, dystonias, spasticity, obsessive-compulsive
behaviour, Tourette's syndrome, all forms of depression and
of anxiety of any nature and origin, mood disorders,
psychoses;
acute and chronic neurodegenerative diseases: Parkinson's
disease, Alzheimer's disease, senile dementia, Huntington's
chorea, lesions related to cerebral ischaemia and to cranial
and medullary trauma;
lepilepsy;
sleep disorders, including sleep apnoea;
cardiovascular diseases, in particular hypertension, cardiac
arrhythmias, arteriosclerosis, heart attack, cardiac
ischaemia;
renal ischaemia;
cancers: benign skin tumours, brain tumours and papillomas,
prostate tumours, cerebral tumours (glioblastomas, medullo-
epitheliomas, medulloblastomas, neuroblastomas, tumours of
embryonic origin, astrocytomas, astroblastomas, ependymomas,
oligodendrogliomas, plexus tumour, neuroepitheliomas,
epiphyseal tumour, ependymoblastomas, malignant meningiomas,
sarcomatosis, malignant melanomas, schwannomas);
disorders of the immune system, in particular autoimmune
diseases; psoriasis, lupus erythematosus, diseases of the
connective tissue or collagen diseases, Sjogren's syndrome,
ankylosing spondylitis, undifferentiated spondylitis,
Behcet's disease, autoimmune haemolytic anaemia, multiple
sclerosis, amyotrophic lateral sclerosis, amyloidosis, graft
rejection, diseases affecting the plasmocytic line;
allergic diseases; immediate or delayed hypersensitivity,
allergic rhinitis or conjunctivitis, contact dermatitis;
parasitic, viral or bacterial infectious diseases: AIDS,
meningitis;
inflammatory diseases, in particular joint diseases:
arthritis, rheumatoid arthritis, osteoarthritis,
spondylitis, gout, vasculitis, Crohn's disease, irritable
Ibowel syndrome; osteoporosis;
eye conditions: ocular hypertension, glaucoma;
pulmonary conditions: diseases of the respiratory tracts,
bronchospasm, coughing, asthma, chronic bronchitis, chronic
obstruction of the respiratory tract, emphysema;
gastrointestinal diseases: irritable bowel syndrome,
inflammatory intestinal disorders, ulcers, diarrhoea;
urinary incontinence and bladder inflammation.
The use of a compound of formula (I) , in the base or
pharmaceutically acceptable salt, hydrate or solvate form,
in the preparation of a medicament intended to treat the
abovementioned pathologies forms an integral part of the
invention.
Another subject-matter of the invention is medicaments
which comprise a compound of formula (I) or a
pharmaceutically acceptable salt, hydrate or solvate of the
compound of formula (I) . These medicaments are used in
therapeutics, in particular in the treatment of the
abovementioned pathologies.
According to another of its aspects, the present invention
relates to pharmaceutical compositions including, as active
principle, at least one compound according to the
invention. These pharmaceutical compositions comprise an
effective dose of a compound according to the invention or
a pharmaceutically acceptable salt, hydrate or solvate of
the said compound and optionally one or more
pharmaceutically acceptable excipients.
The said excipients are chosen, depending on the
pharmaceutical form and the method of administration
desired, from the usual excipients which are known to a
person skilled in the art.
In the pharmaceutical compositions of the present invention
for oral, sublingual, subcutaneous, intramuscular,
intravenous, topical, local, intrathecal, intranasal,
transdermal, pulmonary, ocular or rectal administration,
the active principle of formula (I) above or its optional
salt, solvate or hydrate can be administered in a single-
dose administration form, as a mixture with conventional
pharmaceutical excipients, to animals and to man for the
prophylaxis or the treatment of the above disorders or
diseases.
'Appropriate single-dose administration forms comprise oral
forms, such as tablets, soft or hard gelatin capsules,
powders, granules, chewing gums and oral solutions or
suspensions, forms for sublingual, buccal, intratracheal,
intraocular or intranasal administration or for
iadministration by inhalation, forms for subcutaneous,
intramuscular or intravenous administration and forms for
rectal or vaginal administration. For topical application,
the compounds according to the invention can be used in
creams, ointments or lotions.
By way of example, a single-dose adminstration form of a
compound according to the invention in the form of a tablet
can comprise the following components:
Compound according to the
invention 50.0 mg
Mannitol 223.75 mg
Croscarmellose sodium 6.0 mg
Maize starch 15.0 mg
Hydroxypropylmethylcellulose 2.25 mg
Magnesium stearate 3.0 mg
The said single-dose forms comprise a dose which makes
possible a daily administration of 0.01 to 20 mg of active
principle per kg of body weight, depending upon the
pharmaceutical dosage form.
There may be specific cases where higher or lower dosages
are appropriate; such dosages also come within the
invention. According to the usual practice, the dosage
appropriate to each patient is determined by the doctor
according to the method of administration, the weight and
the response of the said patient.
According to another of its aspects, the invention also
relates to a method for the treatment of the pathologies
indicated above which comprises the administration of an
'effective dose of a compound according to the invention, of
one of its pharmaceutically acceptable salts or of a
solvate or of a hydrate of the said compound.
WE CLAIM:
1. Compound corresponding to the general formula (I)
in which
A is chosen from one or more groups X, Y and/or Z;
X represents a methylene group substituted or unsubstituted by one or two Ci.6-alkyl, C3.
7-cycloalkyl or C3-7-cycloalkyl-Ci-3-alkylene groups;
Y represents either a C2-alkenylene group optionally substituted by one or two Ci^-alkyl,
C3-7-cycloalkyl or C3-7-cycloalkyl-Ci.3-alkylene groups; or a C2-alkynylene group;
Z represents a group of formula:

m represents an integer ranging from 1 to 5;
p and q represent integers and are defined such that p+q is a number ranging from 1 to 5;
n represents an integer ranging from 1 to 7;
Ri represents an R2 group substituted or unsubstituted by one or more R3 and/or R4
groups;
R2 represents a group chosen from a pyridyl, pyrimidinyl, pyridazinyl, pyrazinyl,
triazinyl, pyrrolyl, furyl, thienyl, imidazolyl, oxazolyl, thiazolyl, pyrazolyl, isoxazolyl,
isothiazolyl, oxadiazolyl, thiadiazolyl, triazolyl, tetrazolyl, naphthyl, quinolinyl,
tetrahydroquinolinyl, isoquinolinyl, tetrahydroisoquinolinyl, 2-oxo-3,4-
dihydroquinolinyl, l-oxo-3,4-dihydroisoquinolinyl, quinazolinyl, quinoxalinyl,
phthalazinyl, cinnolinyl, naphthyridinyl, benzofuranyl, dihydrobenzofuranyl,
benzothienyl, dihydrobenzothienyl, indolyl, indolinyl, indazolyl, isoindolyl,
benzimidazolyl, benzoxazolyl, benzisoxazolyl, benzothiazolyl, benzisothiazolyl,
benzotriazolyl, benzoxadiazolyl, benzothiadiazolyl, pyrrolopyridyl, furopyridyl,
thienopyridyl, imidazopyridyl, oxazolopyridyl, thiazolopyridyl, pyrazolopyridyl,
isoxazolopyridyl or isothiazolopyridyl;
R3 represents a group chosen from halogen atoms or cyano, nitro, Ci^-alkyl, G.6-alkoxy,
hydroxyl, C^-thioalkyl, Cw-fluoroalkyl, C^-fluoroalkoxy, Ci.6-fluorothioalkyl, NRsR*,
NR5COR6, NR5CO2R6, NR5S02R6, COR5, C02R5, CONR5R6, S02R5, S02NR5R6 or -O-
(Ci.3-alkylene)-0-groups;
Rt represents a group chosen from phenyl, phenyloxy, benzyloxy, naphthyl, pyridyl,
pyrimidinyl, pyridazinyl or pyrazinyl groups; it being possible for the R4 group or groups
to be substituted by one or more R3 groups which are identical to or different from one
another;
R5 and R; represent, independently of one another, a hydrogen atom or a G-6-alkyl group
or form, with the atom or atoms which carry them, a ring chosen from an azetidine,
pyrrolidine, piperidine, morpholine, thiomorpholine, azepine or piperazine ring, this ring
optionally being substituted by a Ci^-alkyl or benzyl group;
R7 represents a hydrogen atom or a C1-6-alkyl group;
Rs represents a hydrogen atom or a C1-6-alkyl, C3-7-cycloalkyl or C3-7-cycloalkyl-G.3-
alkylene group;
in the base form or in the form of an addition salt with an acid, of a hydrate or of a
solvate.
2. Compound of formula (I) as claimed in Claim 1, wherein:
A is chosen from one or more groups X and/or Y;
X represents a methylene group;
Y represents a C2-alkynylene group;
n represents an integer ranging from 1 to 5;
Ri represents an R2 group substituted or unsubstituted by one or more R3 and/or
Rt groups;
R2 represents a group chosen from a pyridyl, pyrimidinyl, pyridazinyl, imidazolyl,
oxazolyl, pyrazolyl, isoxazolyl, oxadiazolyl, naphthyl, quinolinyl, isoquinolinyl,
dihydroisoquinolinyl, 2-oxo-3,4-dihydroquinolinyl, indolyl, benzimidazolyl or
pyrrolopyridyl;
R3 represents a group chosen from halogen atoms or C1-6-alkyl, Ci^-alkoxy or NR5R6
groups;
R4 represents a group chosen from phenyl, naphthyl or pyridyl groups; it being possible
for the R4 group or groups to be substituted by one or more R3 groups which are identical
to or different from one another;
R5 and R; represent, independently of one another, a C1-6-alkyl group;
R7 represents a hydrogen atom or a Ci.6-alkyl group;
R8 represents a hydrogen atom or a Ci.6-alkyl, C3-7-cycloalkyl or C3-7-cycloalkyl-C1.3-
alkylene group;
in the base form or in the form of an addition salt with an acid, of a hydrate or of a
solvate.
3. Compound of formula (I) as claimed in Claim 1 or 2, wherein:
R2 represents a group chosen from a pyridyl, pyrimidinyl, oxazolyl, isoxazolyl, naphthyl,
quinolinyl or isoquinolinyl.
4. Compound of formula (I) as claimed in any one of Claims 1 to 3, wherein:
R7 represents a hydrogen atom; ^
Rg represents a hydrogen atom or a Ci.6-alkyl group;
in the base form or in the form of an addition salt with an acid, of a hydrate or of a
solvate.
5. Process for the preparation of a compound of formula (I) as claimed in any one of
Claims 1 to 4, comprising the stage consisting in converting the carbamate ester of
general formula (TV) -^

in which A, n, Ri and R7 are as defined in the formula (I) as claimed in Claim 1 and R
represents a methyl or ethyl group,
by aminolysis using an amine of general formula RgNH2, in which Rg is as defined in the
formula (I) as claimed in Claim 1.
6. Process for the preparation of a compound of formula (I) as claimed in any one of
Claims 1 to 4, comprising the stage consisting in converting the oxazolidinedione
derivative of general formula (VII)
in which A, n, Ri and R7 are as defined in the formula (I) as claimed in Claim 1,
by aminolysis using an amine of general formula R8NH2, in which Rg is as defined in the
formula (I) as claimed in Claim 1.
7. Compound corresponding to the general formula (IV),

in which A, n, Ri and R7 are as defined in the formula (I) as claimed in Claim 1 and R
represents a methyl or ethyl group, the following compounds being excluded:
- ethyl 2-[({[2-(5-hydroxy-lH-indol-3-yl)ethyl]amino}carbonyl)oxy]propanoate;
- ethyl 2-[({[2-[5-(phenylmethoxy)-lH-indol-3-yl]ethyl]amino}carbonyl)oxy]propanoate.
8. Compound corresponding to the general formula (VII)

in which A, n, Ri and R7 are as defined in the formula (I) as claimed in Claim 1, the
following compounds being excluded:
- 2-[2-(2,4-dioxo-3-oxazolidinyl)ethyl]-l-methylpyridinium iodide;
-2-[2-(2,4-dioxo-3-oxazolidinyl)ethyl]-5-ethyl-l-methylpyridinium iodide;
- 4-[2-(2,4-dioxo-3-oxazolidinyl)ethyl]-l-methylpyridinium iodide;
- 5-methyl-3-[2-(4-pyridyl)ethyl]-2,4-oxazolidinedione hydrochloride;
- 5-methyl-3-[2-(2-pyridyl)ethyl]-2,4-oxazolidinedione hydrochloride;
- 3-[5-(imidazo[l ,2-a]pyrid-5-yl)pentyl]-2,4-oxazolidinedione;
-3-[2-(5-methyl-4-thiazolyl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(lH-pyrrol-2-yl)ethyl]-2,4-oxazolidinedione;
-3-[2-(2-thienyl)ethyl]-2,4-oxazolidinedione;
- 3 - [3 -(2-thienyl)propyl]-2,4-oxazolidinedione;
- 3-[4-(2-thienyl)butyl]-2,4-oxazolidinedione;
- 5-methyl-3-[2-(2-thienyl)ethyl]-2,4-oxazolidinedione;
- 5-ethyl-3-[2-(2-thienyl)ethyl]-2,4-oxazolidinedione;
-3-[2-(3-thienyl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(5-methyl-2-thienyl)ethyl]-2,4-oxazolidinedione;
-3-[2-(5-acetyl-2-thienyl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(5-bromo-2-thienyl)ethyl]-2,4-oxazolidinedione;
- 5-[2-(2,4-dioxo-3-oxazolidinyl)ethyl]-2-thiophenecarbaldehyde;
- 3-[3-(l-indolinyl)propyl]-2,4-oxazolidinedione;
-3-[3-(l-indolinyl)propyl]-5-methyl-2,4-oxazolidinedione;
-3-[2-(2-pyridyl)ethyl]-2,4-oxazolidinedione;
-3-[2-(5-ethyl-2-pyridyl)ethyl]-5-methyl-2,4-oxazolidinedione;
- 5-ethyl-3-[2-(5-ethyl-2-pyridyl)ethyl]-2,4-oxazolidinedione;
- 3-[2-(5-ethyl-2-pyridyl)ethyl]-5-isopropyl-2,4-oxazolidinedione;
-3-[2-(4-pyridyl)ethyl]-2,4-oxazolidinedione;
- 5-ethyl-3-[2-(4-pyridyl)ethyl]-2,4-oxazolidinedione;
- 5-ethyl-3-[2-(2-pyridyl)ethyl]-2,4-oxazolidinedione;
- 5-isopropyl-3-[2-(4-pyridyl)ethyl]-2,4-oxazolidinedione;
- 5-isopropyl-3-[2-(2-pyridyl)ethyl]-2,4-oxazolidinedione;
-3-[2-(5-ethyl-2-pyridyl)ethyl]-2,4-oxazolidinedione.
9. Pharmaceutical composition comprising at least one compound of formula (I) as
claimed in any one of Claims 1 to 4, in the base or pharmaceutically acceptable salt,
hydrate or solvate form, and optionally one or more pharmaceutically acceptable
excipientsT
10. Compound of formula (I) as claimed in any one of Claims 1 to 4, in the base or
pharmaceutically acceptable salt, hydrate or solvate form, for its use as medicament.
11. Composition as claimed in claim 9, which is capable of being used for preparation
of a medicament intended to prevent or treat a pathology in which endogenous
cannabinoids and/or any other substrate metabolized by the enzyme FAAH are involved.
12. Composition as claimed in claim 9, which is capable of being used for preparation
of a medicament intended to prevent or treat acute or chronic pain, dizziness, vomiting,
nausea, eating disorders, neurological and psychiatric pathologies, acute or chronic
neurodegenerative diseases, epilepsy, sleep disorders, cardiovascular diseases, renal
ischaemia, cancers, disorders of the immune system, allergic diseases, parasitic, viral or
bacterial infectious diseases, inflammatory diseases, osteoporosis, eye conditions,
pulmonary conditions, gastrointestinal diseases or urinary incontinence.


The invention relates to a compound having general formula (I),
wherein: A is selected from among one or more X, Y and/or Z
groups; X represents an optionally-substituted methylene group; Y represents
a C2-alkenylene, optionally substituted, or a C2-alkynylene; Z represents
a C3-7 cycloalkyl group; n represents an integer varying between 1
and 7; R1 represents an optionally-substituted heteroaryl or naphthalenyl
type group; and R7 represents a hydrogen atom or a C1-6 alkyl group; R8 represents a hydrogen atom or a C1-6 alkyl, C3-7 cycloalkyl,
C3-7 cycloalkyl-C1-3 alkylene group. The inventive compound takes the form of a base, an acid addition salt, a hydrate or a solvate.
Said compounds have an inhibitory activity on the FAAH enzyme.

Documents:

02248-kolnp-2006 abstract.pdf

02248-kolnp-2006 claims.pdf

02248-kolnp-2006 correspondence others.pdf

02248-kolnp-2006 description (complete).pdf

02248-kolnp-2006 form-1.pdf

02248-kolnp-2006 form-3.pdf

02248-kolnp-2006 form-5.pdf

02248-kolnp-2006 g.p.a.pdf

02248-kolnp-2006 international publication.pdf

02248-kolnp-2006 international search report.pdf

2248-KOLNP-2006-ABSTRACT 1.1.pdf

2248-kolnp-2006-amanded claims.pdf

2248-KOLNP-2006-ASSIGNMENT.pdf

2248-kolnp-2006-assignment1.1.pdf

2248-KOLNP-2006-CLAIMS.pdf

2248-KOLNP-2006-CORRESPONDENCE 1.1.pdf

2248-kolnp-2006-correspondence 1.2.pdf

2248-KOLNP-2006-CORRESPONDENCE.pdf

2248-kolnp-2006-correspondence1.3.pdf

2248-KOLNP-2006-DESCRIPTION (COMPLETE) 1.1.pdf

2248-KOLNP-2006-ENGLISH TRANSLATION 1.1.pdf

2248-KOLNP-2006-ENGLISH TRANSLATION OF PCT.pdf

2248-KOLNP-2006-EXAMINATION REPORT REPLY RECIEVED.pdf

2248-kolnp-2006-examination report.pdf

2248-KOLNP-2006-FORM 1 1.1.pdf

2248-kolnp-2006-form 1-1.2.pdf

2248-kolnp-2006-form 18.1.pdf

2248-kolnp-2006-form 18.pdf

2248-kolnp-2006-form 2-1.2.pdf

2248-KOLNP-2006-FORM 2.pdf

2248-KOLNP-2006-FORM 3 1.1.pdf

2248-kolnp-2006-form 3-1.2.pdf

2248-KOLNP-2006-FORM 5 1.1.pdf

2248-kolnp-2006-form 5-1.2.pdf

2248-kolnp-2006-gpa.pdf

2248-kolnp-2006-granted-abstract.pdf

2248-kolnp-2006-granted-claims.pdf

2248-kolnp-2006-granted-description (complete).pdf

2248-kolnp-2006-granted-form 1.pdf

2248-kolnp-2006-granted-form 2.pdf

2248-kolnp-2006-granted-specification.pdf

2248-kolnp-2006-others.pdf

2248-kolnp-2006-others1.1.pdf

2248-KOLNP-2006-PETITION UNDER RULE 137 1.1.pdf

2248-KOLNP-2006-PETITION UNDER RULE 137-1.2.pdf

2248-KOLNP-2006-PETITION UNDER RULE 137.pdf

2248-kolnp-2006-reply to examination report.pdf

2248-kolnp-2006-translated copy of priority document.pdf

abstract-02248-kolnp-2006.jpg


Patent Number 248349
Indian Patent Application Number 2248/KOLNP/2006
PG Journal Number 27/2011
Publication Date 08-Jul-2011
Grant Date 06-Jul-2011
Date of Filing 08-Aug-2006
Name of Patentee SANOFI AVENTIS
Applicant Address 174, AVENUE DE FRANCE F-75013, PARIS
Inventors:
# Inventor's Name Inventor's Address
1 ABOUABDELLAH, AHMED 2 RUE DES EGLANTIERS, FR-94320, THIAIS
2 HOORNAERT CHRISTIAN 49 AVENUE ARISTIDE BRIAND, FR-92160, ANTONY
3 ANTOINE, RAVET 157, BOULEVARD VOLTAIRE FR-75011, PARIS
4 BARTSCH-LI REGINE 14 RUE PIERRE BONNARD, FR-92260, FONTENAY-AUX-ROSES
PCT International Classification Number C07C 271/10
PCT International Application Number PCT/FR2005/000451
PCT International Filing date 2005-02-25
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 0401949 2004-02-26 France