Imidazole substituted benzoxazine or benzothiazine derivatives
申请人:Dong-A Pharm. Co., Ltd.
公开号:US05171851A1
公开(公告)日:1992-12-15
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.
Novel benzoxazine or benzothiazine derivatives and process for the preparation of the same
申请人:DONG-A PHARM. CO., LTD.
公开号:EP0510235A1
公开(公告)日:1992-10-28
Novel benzoxazine or benzothiazine derivatives of the formaula(A),
wherein R₁, R₂ and R₃ are the same or different and represent hydrogen atom or C₁₋₄ lower alkyl group and X and Y are the same or different and represent oxygen or sulfur atom;
have an excellent inotropic effect and can be used as cardiac stimulant.