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. 31, 1978
Filed:
Sep. 26, 1975
Applicant:
Inventors:
Christian Berger, Le Plessis Robinson, FR;
Daniel Farge, Thiais, FR;
Georges Gros, Bourg-la-Reine, FR;
Mayer Naoum Messer, Bievres, FR;
Claude Moutonnier, Le Plessis-Robinson, FR;
Assignee:
Rhone-Poulenc Industries, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; A61K / ;
U.S. Cl.
CPC ...
2603 / ; 560153 ; 544 28 ; 424246 ;
Abstract
New oxathiino- and dithiino-aminoacetic acids of the formula: ##STR1## in which A represents oxygen or sulphur, together with their racemic forms, their optically active forms and mixtures thereof, their reactive derivatives and their acid addition salts, are valuable intermediates for the preparation of therapeutically active derivatives, in particular cephalosporin derivatives of the formula: ##STR2## where R is hydrogen or acetoxy.