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. 08, 1980
Filed:
Jun. 22, 1977
Applicant:
Inventors:
Assignee:
Beecham Group Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602452 ; 424246 ; 424271 ; 2602391 ;
Abstract
A class of ketenimine intermediates are prepared from 6-acylaminopenicillins having an .alpha.-carboxy substituent in the side-chain, and are useful in the preparation of 6.alpha.-methoxy-.alpha.-carboxy penicillins.