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:
Nov. 16, 1993
Filed:
Mar. 13, 1992
Applicant:
Inventors:
Andre Bousquet, Sisteron, FR;
Alain Heymes, Sisteron, FR;
Assignee:
Elf Sanofi, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560213 ; 560226 ;
Abstract
Composition consisting of a mixture of (E) and (Z) isomers of esters of general formula: ##STR1## in which R represents a C.sub.1 -C.sub.4 alkyl radical, containing at least 85% of (E) isomer. A process for preparing such a composition. The use of such a composition for preparing (E)-2-propyl-2-pentenoic acid of formula: ##STR2## and also its pharmaceutically acceptable salts.