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. 25, 1989
Filed:
Jul. 12, 1985
Applicant:
Inventors:
Tsuneji Suzuki, Kanagawa, JP;
Kunio Sannohe, Kanagawa, JP;
Toshihiko Ito, Kanagawa, JP;
Masahiko Maruyama, Chiba, JP;
Joji Kamiya, Chiba, JP;
Makoto Hirayama, Chiba, JP;
Takafumi Kitano, Chiba, JP;
Akira Awaya, Kanagawa, JP;
Assignee:
Mitsui Toatsu Chemicals, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
546141 ; 546 15 ; 546270 ; 546334 ; 546335 ; 549336 ;
Abstract
An isoquinoline derivative of the following formula: ##STR1## wherein R.sub.1 is a methyl or a methoxymethyl group and R.sub.2 and R.sub.3 are each a hydrogen atom or a methyl, ethyl, methoxy, a cyclohexyl, a phenyl, a 3,4-dimethoxyphenyl, a pyridyl or an oxo (.dbd.O) group; and therapeutically acceptable salts thereof which exhibit a low toxicity and a wide range of safety and are highly useful as a cardiotonic medication.