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. 13, 1982
Filed:
Mar. 12, 1981
Applicant:
Inventors:
Norihide Umino, Ageo, JP;
Tokuro Ohishi, Shakujii, JP;
Muneyoshi Ikezaki, Takarazuka, JP;
Masanori Sato, Kuki, JP;
Taku Nagao, Tokyo, JP;
Assignee:
Tanabe Seiyaku Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
424308 ; 424311 ; 424312 ; 560108 ; 560138 ; 560 27 ; 260404 ;
Abstract
A compound of the formula: ##STR1## wherein R is alkanoyl of one to 20 carbon atoms, benzoyl or lower alkyl-benzoyl, and processes for preparation thereof are disclosed. Said compound (I) and a pharmaceutically acceptable acid addition salt thereof are useful as a cardiotonic agent.