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.

Date of Patent:
Aug. 31, 1982

Filed:

Jan. 15, 1981
Applicant:
Inventors:

Daniel Farge, Thiais, FR;

Pierre Le Roy, Thiais, FR;

Claude Moutonnier, Le Plessis Robinson, FR;

Jean-Francois Peyronel, Palaiseau, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544182 ;
Abstract

New thiols of the general formula: ##STR1## wherein A represents a 2-hydroxy-1-oxoethan-1-yl-2-ylidene or alkoxycarbonylmethyne radical or a nitrogen atom and R represents various substituted alkyl radicals, and their alkali metal and alkaline earth metal salts are useful as intermediates in the preparation of cephalosporins having anti-bacterial properties.


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