申请人:SHISEIDO COMPANY LIMITED
公开号:EP0735031A1
公开(公告)日:1996-10-02
An N-acylpiperazine derivative or a salt thereof in accordance with the present invention is represented by the following formula 1:
wherein
R1 represents a lower alkyl, hydroxy lower alkyl, lower acyl, or arylcarbonyloxy lower alkyl group;
R2 represents hydrogen atom or a lower alkyl, lower alkoxy, lower alkenyl, amino, or nitro group;
R3 and R4, which are identical to or different from each other, represent hydrogen atoms, halogen atoms, or cyano, nitro, lower alkyl, or lower alkoxy groups; and
n represents 0 or 1.
The N-acylpiperazine derivative has anti-ulcer effect or an antibacterial activity against Helicobacter pyroli to be available for prevention or cure of ulsers.
符合本发明的 N-酰基哌嗪衍生物或其盐由下式 1 表示:
其中
R1 代表低级烷基、羟基低级烷基、低级酰基或芳基羰氧基低级烷基;
R2 代表氢原子或低级烷基、低级烷氧基、低级烯基、氨基或硝基;
彼此相同或不同的 R3 和 R4 代表氢原子、卤素原子或氰基、硝基、低级烷基或低级烷氧基;以及
n 代表 0 或 1。
N-acylpiperazine 衍生物具有抗溃疡作用或对脓疱螺旋杆菌的抗菌活性,可用于预防或治疗溃疡。