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:
Feb. 12, 1991
Filed:
Jun. 30, 1982
Rene Heymes, Romainville, FR;
Didier Pronine, Rosny S/S Bois, FR;
RousselUclaf, Paris, FR;
Abstract
Novel syn isomers of 3-alkoxymethyl or 3-alkylthiomethyl-7-[2-(2-amino-4-thiazolyl)-2-oximino-acetamido]-cephalos poranic acid compounds of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 6 carbon atoms, alkenyl and alkynyl of 2 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, acyl of an organic carboxylic acid of 1 to 18 carbon atoms and alkoxy carbonyl of 2 to 6 carbon atoms, A is selected from the group consisting of hydrogen, alkali metal, alkaline earth metal, --NH.sub.4, magnesium, non-toxic, pharmaceutically acceptable organic amine and an easily cleavable ester group, Ra' is selected from the group consisting of alkyl of 1 to 6 carbon atoms optionally interrupted with a heteroatom, alkenyl and alkynyl of 2 to 6 carbon atoms and optionally substituted aralkyl of 7 to 12 carbon atoms, n is 0, 1 or 2, X' is selected from the group consisting of oxygen and sulfur optionally oxidized to sulfoxide or sulfone and their non-toxic, pharmaceutically acceptable acid addition salts having antibiotic activity and their preparation.