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:
Mar. 31, 2009
Filed:
Oct. 27, 2003
OM Dutt Tyagi, Maharashtra, IN;
Santosh Kumar Richhariya, Maharashtra, IN;
Rajesh Kumar Ramchandra Pawar, Maharashtra, IN;
Yuvaraj Atmaram Chavan, Maharashtra, IN;
Om Dutt Tyagi, Maharashtra, IN;
Santosh Kumar Richhariya, Maharashtra, IN;
Rajesh Kumar Ramchandra Pawar, Maharashtra, IN;
Yuvaraj Atmaram Chavan, Maharashtra, IN;
Lupin Limited, Maharashtra, IN;
Abstract
A process for preparation of ceftiofur of formula (I) having purity greater than 97% is disclosed. The process comprises reacting [2-(2-aminothiazol-4-yl)]-2-syn-methoxyimino acetic acid-2-benzothiazolyl thioester of formula (II), with 7-amino-3-(2-furanylcarbonylthiomethyl)-3-cephem-4-carboxylic acid of formula (III) in the presence of a mixture of an water-immiscible inert organic solvent and water and in the presence of a organic base and isolating ceftiofur of formula (I) substantially free of impurities by,
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile