Novel 8-chloro-1,5-benzothiazepine derivatives, processes for preparing the same and pharmaceutical compositions
申请人:Tanabe Seiyaku Co., Ltd.
公开号:EP0127882A1
公开(公告)日:1984-12-12
Novel 8-chloro-1,5-benzothiazepine derivatives of the formula:
wherein R' is hydrogen, lower alkyl or a group of the formula: R4CO-, each of R2 and R' is lower alkyl and R4 is hydrogen or lower alkyl, and a pharmaceutically acceptable acid addition salt thereof as well as a process for preparing the same are disclosed. Said derivative (I) and a pharmaceutically acceptable acid addition salt thereof in form of a pharmaceutical composition are useful as hypotensive agents and/or coronary or cerbral vasodilators.
Novel 1,5-benzothiazepine derivatives, processes for preparing the same and pharmaceutical compositions
申请人:Tanabe Seiyaku Co., Ltd.
公开号:EP0154838A1
公开(公告)日:1985-09-18
Novel 1,5-benzothiazepine derivatives of the formula:
wherein R1 is lower alkyl or lower alkoxy, R2 is hydrogen atom or lower alkanoyl, each one of R3 and R4 is lower alkyl, Ring A is a substituted benzene ring of the formula:
Ra is lower alkyl, lower alkoxy, lower alkylthio or benzyloxy, each one of Rb and R° is lower alkyl, lower alkoxy or halogen atom, and either one of Rd and Re is fluorine atom and the other one is hydrogen atom, or a pharmaceutically acceptable acid addition salt thereof and processes for their production. In form of pharmaceutical compositions said derivative (I) and its salt are useful as a hypotensive agent and/or a cerebral or coronary vasodilator.
Novel 1,5-benzothiazepine derivative, processes for preparing the same and pharmaceutical compositions
申请人:Tanabe Seiyaku Co., Ltd.
公开号:EP0158340A2
公开(公告)日:1985-10-16
Novel 1,5-benzothiazepine derivatives of the formula:
wherein R' and R4 are:
a) R1 is lower alkyl or lower alkoxy, and R4 is lower alkyl, lower alkoxy, fluorine, benzyloxy, hydroxy or lower alkylthio, or
b) R' is lower alkyl, and R4 is hydrogen, or
c) R' is hydroxy, and R4 is lower alkyl, fluorine, hydroxy or lower alkylthio;
R2 is hydrogen, lower alkanoyl or benzoyl; and R3 is lower alkyl; and a pharmaceutically acceptable acid addition salt thereof are disclosed. In form of pharmaceutical compositions the said derivative (I) and its salt have a potent platelet aggregation-inhibiting activity.
式中的新型 1,5-苯并硫氮杂卓衍生物:
其中 R' 和 R4 是
a) R1 是低级烷基或低级烷氧基,R4 是低级烷基、低级烷氧基、氟、苄氧基、羟基或低级烷硫基,或
b) R' 是低级烷基,R4 是氢,或
c) R' 是羟基,R4 是低级烷基、氟、羟基或低级烷硫基;
R2 是氢、低级烷酰基或苯甲酰基;R3 是低级烷基;及其药学上可接受的酸加成盐。在药物组合物中,上述衍生物(I)及其盐具有强效的血小板聚集抑制活性。
It has been found that the novel compounds of the formula
wherein R, is phenyl substituted with 1 to 3 lower alkoxy groups or 1 to 3 halogens, R2 is hydroxy, lower alkoxv. lower alkanovloxv. lower cvcloalkvlcarbonvloxv.
R3 and R, are, independently, lower alkyl, phenyl lower alkyl or, taken together, form a piperidine or pyrrolidine ring, n is 2 to 4 and m is 1 to 2,
and pharmaceutically acceptable acid addition salts thereof have activity as calcium channel blockers and, accordingly, are useful as agents for treating ischemia and as agents for lowering blood pressure. They can be prepared by reacting a compound of the formula
with a compound of the formula
and optionally converting the compound thus obtained to a compound wherein R2 is other than hydroxy.
It has been found that the novel compounds of the formula
wherein R1 is phenyl substituted with 1 to 3 lower alkoxy groups or 1 to 3 halogens. R2 is hydroxy or lower alkanoyloxy, R3 and R4 are, independently, lower alkyl or, taken together, form a piperidine or pyrrolidine ring and n is 2 to 4, and pharmaceutically acceptable acid addition salts thereof are active as calcium channel blockers and, accordingly, are useful as agents for treating ischemia and as agents for lowering blood pressure. They can be preparated by reacting a compound of the formula
with a compound of the formula
and optionally lower alkoxylating the compound obtained.