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:
Dec. 21, 1982
Filed:
May. 21, 1980
Daniel Farge, Thiais, FR;
Claude Moutonnier, Le Plessis Robinson, FR;
Pierre Le Roy, Thiais, FR;
Jean-Francois Peyronel, Palaisseau, FR;
Rhone-Poulenc Industries, , FR;
Abstract
New cephalosporins of the formula: ##STR1## in which n=0 or 1, R.sub.1 is a radical of the formula: ##STR2## [in which R.sub.4 is a protective radical and R.sub.5 is hydrogen, alkyl, vinyl, cyanomethyl or a protective radical], or R.sub.1 is a protective radical and R.sub.2 is a protective radical or an enzymatically removable radical, or R.sub.1 is an acyl radical which may be substituted in various ways and R.sub.2 is a protective radical, in the 3-oxoethyl-bicyclooct-2-ene or -bicyclooct-3-ene or 3-oxoethylidene-bicyclooctane form if n=0, and in the 3-oxoethyl-bicyclooct-2-ene or 3-oxoethylidene-bicyclooctane form if n=1, are useful as intermediates for the preparation of 3-thiovinyl-cephalosporins useful as antibacterial agents.