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:
Aug. 20, 1985
Filed:
Jun. 30, 1980
Makoto Sunagawa, Osaka, JP;
Haruki Matsumura, Osaka, JP;
Takaaki Inoue, Hyogo, JP;
Toshiyuki Hirohashi, Osaka, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A process for preparing a .beta.-lactam derivative having a hydrogen atom on the nitrogen atom of the .beta.-lactam ring, which comprises reacting a .beta.-lactam derivative having a mono- or diarylmethyl group on the nitrogen atom of the .beta.-lactam ring with an acid or ceric ammonium nitrate to cleave the bond between the nitrogen atom and the mono- or diarylmethyl group; and novel .beta.-lactam derivatives useful as intermediates for the synthesis of pharmaceutical agents.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile