申请人:MITSUBISHI KASEI CORPORATION
公开号:EP0161498A1
公开(公告)日:1985-11-21
A phenylpiperazine derivative according to the present invention has the following general formula [I]:
wherein R1, R2 and R3 are independently hydrogen or alkoxy group having 1 to 3 carbon atoms, or
R1 and R2 or R2 and R3 together with carbon atoms to which they are attached form -O(CH2)mO- wherein m is an integer of 1 to 3, or
either R1 or R2 is amine residue selected from the group consisting of-NH2, -NHSO2CH3, -NHCOCH3 and -NHCONH2 and the other is hydrogen or alkoxy group of 1 to 3 carbon atoms and R3 is hydrogen;
R4 and R5 are independently hydrogen or alkyl group of 1 to 3 carbon atoms;
Y is -CO- or -SO2- provided that at least one of R1 and R2 is not hydrogen when Y is -CO-; and
n is an integer of 2 to 4.
An acid addition salt of the phenylpiperazine derivative having the general formula [I] is included in the present invention. The phenylpiperazine derivative as well as its acid addition salt according to the present invention have the ability to reduce the blood pressure.
根据本发明,一种苯基哌嗪衍生物具有如下通式[I]:
其中 R1、R2 和 R3 独立地为氢或具有 1 至 3 个碳原子的烷氧基,或
R1 和 R2 或 R2 和 R3 与它们所连接的碳原子一起形成 -O(CH2)mO- 其中 m 是 1 至 3 的整数,或
R1 或 R2 是选自-NH2、-NHSO2CH3、-NHCOCH3 和-NHCONH2 的胺残基,另一个是氢或 1 至 3 个碳原子的烷氧基,R3 是氢;
R4 和 R5 独立地为氢或 1 至 3 个碳原子的烷基;
Y 是-CO-或-SO2-,条件是当 Y 是-CO-时,R1 和 R2 中至少有一个不是氢;以及
n 是 2 至 4 的整数。
本发明包括具有通式[I]的苯基哌嗪衍生物的酸加成盐。根据本发明的苯基哌嗪衍生物及其酸加成盐具有降低血压的能力。