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. 25, 1990
Filed:
Apr. 10, 1990
Klaus Hasspacher, Riehen, CH;
Reto Naef, Rheinfelden, CH;
Sandoz Ltd., Basel, CH;
Abstract
Compounds of formula I ##STR1## wherein R.sub.1 is hydrogen or C.sub.1-4 alkyl; R.sub.2 is hydrogen and R.sub.3 is hydrogen or C.sub.1-4 alkyl, or R.sub.2 and R.sub.3 together represent an additional bond as indicated by the dotted line; R.sub.4 is hydrogen, C.sub.1-4 alkyl or phenyl; R.sub.5 is methoxy or ethoxy; R.sub.6 is hydrogen, hydroxy, C.sub.1-4 alkoxy, hydroxy-(C.sub.2-4 alkoxy) or (C.sub.1-4 alkoxy)-(C.sub.2-4 alkoxy); R.sub.7 and R.sub.8 are each independently C.sub.1-4 alkoxy or (C.sub.1-4 alkoxy)-(C.sub.2-4 alkoxy); and R.sub.9 is hydrogen or halogen, in free form or pharmaceutically acceptable salt form, have pharmaceutical utility, in particular as bronchodilators, eosinophil accumulation and/or activation inhibiting agents and in the treatment of prophylactic treatment of obstructive or inflammatory airways diseases.