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:
Apr. 03, 1990
Filed:
Mar. 16, 1989
Applicant:
Inventors:
Yasuhiro Morisawa, Tokyo, JP;
Mitsuru Kataoka, Tokyo, JP;
Seiji Kumakura, Tokyo, JP;
Hiroyuki Koike, Tokyo, JP;
Shinsaku Kobayashi, Tokyo, JP;
Assignee:
Sankyo Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; A61K / ;
U.S. Cl.
CPC ...
514211 ; 514247 ; 514252 ; 514253 ; 5142278 ; 5142322 ; 5142365 ; 540575 ; 544 60 ; 544114 ; 544121 ; 544238 ; 544239 ;
Abstract
Compounds of formula (I): ##STR1## (wherein Q is oxygen or sulfur, the dotted line is a single or double bond, A is alkylene, and R.sup.1 -R.sup.5 are a variety of atoms or organic groups) have excellent ability to potentiate myocardial contractivity and a variety of other properties, and can be used to treat cardiac disorders.