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:
Oct. 11, 1983
Filed:
Jun. 09, 1982
Applicant:
Inventors:
Assignee:
Riom Laboratories - Cerm S.A., Riom, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
424250 ; 544360 ; 544375 ; 549460 ; 549461 ;
Abstract
The present invention is dealing with compounds of the formula: ##STR1## and pharmaceutically acceptable salts thereof, in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are identical or different and represent hydrogen, halogen, lower alkyl or alkoxy or trifluoromethyl; R.sub.5 represents hydrogen or lower alkyl, X represents hydrogen and Y represents hydroxy, or X and Y together represent oxygen and Ar represents an optionally substituted aromatic moiety, having potent anti-bronchoconstrictor properties.