Title of Invention

AN IMPROVED PROCESS FOR THE PREPARATION OF TAZOBACTAM IN PURE FORM

Abstract An improved process for the purification of tazobactam or its derivatives of the formula(I) wherein R represents hydrogen,c<sub>1</sub>-c<sub>6</sub> alkyl, p-methoxybenzyl, o-nigtrobenzyl, p-nitrobenzyl, o-chlorobenzyl, benzyl or diphenylmethyl, which comprises the steps of: i) slurrying the compound of formula (I)containing the impurity of the formula (V)using a solvent in the presence or absence of tartaric acid with or without the presence of water at 20-50 oc and ii) isolating the compound of formula (I) in pure form
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Documents:

319-CHE-2004 AMENDED CLAIMS 06-09-2010.pdf

319-CHE-2004 EXAMINATION REPORT REPLY RECIEVED 06-09-2010.pdf

319-CHE-2004 FORM-5 06-09-2010.pdf

319-che-2004 abstract.pdf

319-che-2004 correspondence others.pdf

319-che-2004 correspondence po.pdf

319-che-2004 description (complete) granted.pdf

319-che-2004 form 1.pdf

319-che-2004 form 18.pdf

319-che-2004 form 3.pdf

abs-319.jpg


Patent Number 243309
Indian Patent Application Number 319/CHE/2004
PG Journal Number 41/2010
Publication Date 08-Oct-2010
Grant Date 05-Oct-2010
Date of Filing 07-Apr-2004
Name of Patentee ORCHID CHEMICALS & PHARMACEUTICALS LTD.,
Applicant Address ORCHID TOWERS 313, VALLUVAR KOTTAM HIGH ROAD NUNGAMBAKKAM CHENNAI 600 034.
Inventors:
# Inventor's Name Inventor's Address
1 ANDREW GNANAPRAKASAM CHOLAN FLATS 27/1, JYOTI NAGAR 2ND STREET CHETTLAPAKKAM CHENNAI.
2 UDAYAMPALAYAM PALANISAMY SENTHILKUMAR N.UDAYAPALAYAM POST. KULLAMPALAYAM TQ. GOBICHETTIPALAYAM-638 476 ERODE DIST, TAMILNADU, INDIA
3 GADDAM OM REDDY NO.1, 2ND FLOOR, GOLDEN GLEAMS APARTMENT KARUNANIDHI STREET, KAKAKSHETRA COLONY BESANT NAGAR, CHENNAI-600 090
PCT International Classification Number A61K31/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA