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:
Apr. 12, 1977
Filed:
Jul. 29, 1975
Applicant:
Inventors:
Tetsuo Hiraoka, Tokyo, JA;
Yukio Sugimura, Tokyo, JA;
Assignee:
Sankyo Company Limited, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 424246 ;
Abstract
A 7.beta.-acylamino-7.alpha.-alkoxycephalosporin is prepared by reacting a 7-acylaminocephalosporin with a halogenating agent to give an iminohalide, reacting the latter compound with a base to give a keteneimine, reacting the latter compound with a halogen to give an .alpha.-halogeno iminohalide, reacting the latter compound with an alkali metal alkoxide and consecutively either subjecting the resulting compound to hydrolysis, or reacting the resulting compound with an acid or a halogenosilyl compound followed by treating the resulting compound with water. The 7.beta.-acylamino-7.alpha.-alkoxycephalosporin is useful as an antibacterial agent.