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:
Dec. 19, 1995
Filed:
Sep. 14, 1994
Gilbert Lassalle, Clamart, FR;
Daniel Galtier, Guyancourt, FR;
Frederic Galli, La Celle St Cloud, FR;
Synthelabo, Le Plessis Robinson, FR;
Abstract
Compounds of the formula: ##STR1## in which R.sub.1 represents a hydrogen atom or a (C.sub.1 -C.sub.4)alkyl group, R.sub.2 represents a hydrogen atom, a (C.sub.1 -C.sub.4)alkoxycarbonyl group, a carboxyl group, a sodium carboxylate group, a group --CH.sub.2 OR.sub.4, where R.sub.4 is a hydrogen atom or R.sub.4 is a (C.sub.1 -C.sub.4) alkyl or (C.sub.1 -C.sub.4) acyl group, a group --CONR.sub.5 R.sub.6, or a group --CN.sub.4 R.sub.5, where R.sub.5 is a hydrogen atom or a (C.sub.1 -C.sub.4)alkyl group and R.sub.6 is a hydrogen atom or a (C.sub.1 -C.sub.4)alkyl, hydroxyl or (C.sub.1 -C.sub.4) alkoxy or (C.sub.1 -C.sub.3) alkoxyphenyl group and R.sub.3 represents a (C.sub.1 -C.sub.4)alkyl group, and their acid addition salts are useful as synthetic intermediates.