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. 21, 1987
Filed:
Nov. 12, 1985
Applicant:
Inventors:
Karl Schonafinger, Alzenau, DE;
Helmut Bohn, Schoneck, DE;
Piero Martorana, Bad Homburg, DE;
Rolf-Eberhard Nitz, Frankfurt, DE;
Assignee:
Cassella Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; A61K / ;
U.S. Cl.
CPC ...
514340 ; 546277 ; 546280 ; 546284 ; 546256 ; 546251 ; 514342 ;
Abstract
1,4-dihydropyridines of the formula I ##STR1## wherein R.sup.1 denotes optionally substituted phenyl, pyridyl or thienyl, R.sup.2 denotes optionally substituted oxadiazolyl, thiadiazolyl or thiazolyl and R.sup.3 denotes hydrogen or --COOH, their preparation by a modified Hantzsch synthesis and their use as a calcium-agonist in pharmacy.