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. 31, 2006
Filed:
Feb. 11, 2004
Juan C. Colberg, Gilford, CT (US);
Maurizio Zenoni, Paullo, IT;
Giovanni Fogliato, Barzana, IT;
Alessandro Donadelli, Casalpusterlengo, IT;
Juan C. Colberg, Gilford, CT (US);
Maurizio Zenoni, Paullo, IT;
Giovanni Fogliato, Barzana, IT;
Alessandro Donadelli, Casalpusterlengo, IT;
Pfizer, Inc., New York, NY (US);
Abstract
A process for the preparation of 3-cyclic-ether-substituted cephalosporins of formula I wherein the group CORis a carboxylic acid or a carboxylate salt and Rhas the formula: wherein wherein Ris as defined above and Ris para-nitrobenzyl or allyl with a compound RL wherein Ris as defined above; and L is di-(Calkyl)phosphorothioate in the presence of a solvent and a base.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile