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:
May. 17, 1994
Filed:
Mar. 12, 1993
Isaac Chekroun, Epinay, FR;
Manuel Bedoya Zurita, Paris, FR;
Jose Ruiz-Montes, Mantes la Jolie, FR;
Guy Rossey, Voisins le Bretonneux, FR;
Synthelabo, Le Plessis Robinson, FR;
Abstract
A process for preparing a compound represented by formula ##STR1## by deprotecting a compound represented by formula (VII) ##STR2## in which R.sub.1 represents an unbranched or branched C.sub.1-7 alkyl, unbranched or branched C.sub.3-9 alkenyl, or (C.sub.3-7)cycloalkyl(C.sub.1-6)alkyl, and R.sub.2 represents hydrogen, unbranched or branched C.sub.1-7 alkyl, (C.sub.3-7)cycloalkyl(C.sub.1-3)alkyl, aryl(C.sub.1-3)alkyl optionally substituted on the ring-system, aryloxy(C.sub.1-3)alkyl optionally substituted on the ring-system, arylthio(C.sub.1-3)alkyl optionally substituted on the ring-system, arylsulphonyl(C.sub.1-3)alkyl optionally substituted on the ring-system, and heteroaryl(C.sub.1-3)alkyl optionally substituted on the ring-system.