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. 15, 1992
Filed:
Mar. 25, 1991
Applicant:
Inventors:
Moohi Y Kim, Seoul, KR;
Hyun T Shin, Seoul, KR;
Choon W Lee, Seoul, KR;
Joon W Kim, Kyungki, KR;
Soon H Kim, Kyungki, KR;
Youngmoon Choi, Seoul, KR;
Moon H Son, Kyungki, KR;
Assignee:
Dong-A Pharm. Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
544 50 ; 544 92 ;
Abstract
A benzoxazine or benzothiazine derivative of the formula (A), ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and represent a hydrogen atom or a C.sub.1-4 alkyl group; or R.sub.1 and R.sub.2 can be joined together along with the imidazole ring to form a benzimidazole; X and Y are the same or different and represent an oxygen or sulfur atom; or a pharmaceutically acceptable salt thereof, exhibits an excellent inotropic effect and can be used as a cardiac stimulant.