The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2004
Filed:
Aug. 01, 2002
Applicant:
Inventors:
Pramod Narayan Deshpande, Chennai, IN;
Bhausaheb Pandharinath Khadangale, Chennai, IN;
Surulichamy Senthil Kumar, Chengalpattu, IN;
Gautam Kumar Das, Chennai, IN;
Assignee:
Orchid Chemicals and Pharmaceuticals Limited, Chennai, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
The present invention relates to a process for preparation of 7-amino-3-[2-(furylcarbonyl)thiomethyl]-3-cephem-4-carboxylic acid (I) by the condensation of 7-aminocephalosporanic acid (II) with furyl-2-carbonylthiol (III) in the presence of borontrifluoride or its complex, in an organic solvent or mixture of solvents at 0-50° C.