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:
Jan. 23, 1990
Filed:
Oct. 19, 1988
Applicant:
Inventors:
Brian T O'Neill, Westbrook, CT (US);
Douglas Phillips, Ledyard, both, CT (US);
Assignee:
Pfizer Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
540310 ; 540200 ; 514192 ;
Abstract
An efficient, multistep process for the synthesis of 6-(1-hydroxyethyl) 2-thio-substituted penem antibiotics from 2-[4R-(triphenylmethy lthio)-3S-(1S-(dimethyl-t-butylsilyloxy)ethyl)-2-azetidon-1-yl]acetic acid esters.
O'Neill, Brian. (1990). Process for the preparation of penems (U.S. Patent No. 4895940). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4895940
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile