申请人:Yoshitomi Pharmaceutical Industries, Ltd.
公开号:US04122178A1
公开(公告)日:1978-10-24
Piperazine compounds useful as analgesics, and having the formula: ##STR1## wherein each of R.sup.1 and R.sup.2 is hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or CF.sub.3 ; R.sup.3 is hydrogen, hydroxyl, an optionally substituted phenyl (e.g. phenyl, halo-phenyl, C.sub.1-4 alkyl-phenyl, C.sub.1-4 alkoxy-phenyl or CF.sub.3 -phenyl), pyridyl, 2-thienyl or 2-pyrimidinyl; m is 2 or 3; and n is 0, 1 or 2, and pharmaceutically acceptable acid addition salts thereof are disclosed.
本文中公开了一种作为镇痛剂有用的哌嗪化合物,其化学式为:##STR1## 其中R.sup.1和R.sup.2各自为氢、卤素、C.sub.1-4烷基、C.sub.1-4烷氧基或CF.sub.3;R.sup.3为氢、羟基、可选择取代的苯基(例如苯基、卤代苯基、C.sub.1-4烷基苯基、C.sub.1-4烷氧基苯基或CF.sub.3-苯基)、吡啶基、2-噻吩基或2-嘧啶基;m为2或3;n为0、1或2,并公开了其药学上可接受的酸盐。