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:
Jul. 09, 1991
Filed:
Mar. 13, 1990
Applicant:
Inventors:
Rene Imhof, Gipf-Oberfrick, CH;
Hans H Keller, Basel, CH;
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
514290 ; 546101 ;
Abstract
Compounds of the formula ##STR1## wherein R.sup.1 is hydrogen; lower-alkyl, unsubstituted or substituted by hydroxy, lower-alkoxy, cyano, halogen, lower-alkoxycarbonyl, aminocarbonyl, substituted benzoyl or substituted .alpha.-hydroxybenzyl; lower-alkenyl; cycloalkyl; cycloalkyl-lower-alkyl; heteroaryl-lower-alkyl; or aryl-lower-alkyl, unsubstituted or substituted by hydroxy, lower-alkoxy, lower-alkyl or halogen, and R.sup.2 is hydrogen or lower-alkanoyl,