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. 26, 1996
Filed:
Dec. 22, 1994
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:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
540 30 ;
Abstract
A compound of the formula ##STR1## wherein K represents a protective group of the oxo of the formula ##STR2## wherein n is 2 or 3, and M is chlorine, bromine, or ##STR3## wherein R.sub.a and R.sub.b are individually selected from the group consisting of hydrogen, --OH, and alkyl and alkoxy of 1 to 4 carbon atoms and R is selected from the group consisting of alkyl of 1 to 6 carbon atoms, aralkyl of 7 to 15 carbon atoms, trialkyl silyl triphenyl silyl and diphenyl alkyl silyl.