申请人:Takeda Chemical Industries, Ltd.
公开号:EP0233728A1
公开(公告)日:1987-08-26
1,4-Benzoxazine derivatives representable by the general formula;
wherein
R1 and R2 independently stand for hydrogen, halogen atom, nitro group, an optionally substituted lower alkyl group, an optionally substituted amino group, an optionally substituted hydroxyl group, a lower alkoxycarbonyl group, or
R1 and R2 combinedly stand for a ring representable by (̵CH2)̵m (wherein m denotes an integer of 3 to 5) or-O(̵ CH2)̵nO- (wherein n denotes an integer of 1 to 3),
R3 stands for hydrogen or a lower alkyl group,
R4 and R5 independently stand for hydrogen, halogen atom, an optionally substituted lower alkyl group or an optionally substituted hydroxyl group, and
A stands for an alkylene group or acid addition salts thereof, are useful as prophylactic or therapeutic drugs for, among others, hypertension or ischemic diseases.
可由通式表示的 1,4-苯并恶嗪衍生物;
其中
R1和R2分别代表氢、卤素原子、硝基、任选取代的低级烷基、任选取代的氨基、任选取代的羟基、低级烷氧羰基,或
R1 和 R2 共同代表一个可由 (̵CH2)̵m (其中 m 表示 3 至 5 的整数)或-O(̵CH2)̵nO-(其中 n 表示 1 至 3 的整数)表示的环、
R3 代表氢或低级烷基、
R4 和 R5 分别代表氢、卤素原子、任选取代的低级烷基或任选取代的羟基,以及
A 代表亚烷基或其酸加成盐,可用作高血压或缺血性疾病的预防或治疗药物。