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:
Mar. 15, 1994
Filed:
Nov. 04, 1992
Applicant:
Inventors:
Francis Brion, Gagny, FR;
Jean Buendia, Le Perreux Sur Marne, FR;
Christian Diolez, Palaiseau, FR;
Michel Vivat, Lagny Sur Marne, FR;
Assignee:
Roussel-Uclaf, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07J / ; C07J / ; C07J / ;
U.S. Cl.
CPC ...
540 30 ; 540 34 ; 552602 ;
Abstract
A process for the production of a compound of the formula ##STR1## wherein R is an acyl group of 1 to 8 carbon atoms. The compound is formed through an intermediate compound of the formula ##STR2## wherein R.sub.1 is selected from the group consisting of methyl, phenyl, tolyl, and xylyl and wherein K is a protective group selected from the group consisting of ##STR3## in which n is 2 or 3 and the wavy line means that the group SO.sub.2 --R.sub.1 may have either isomeric form or are mixtures thereof.