An N-substituted N-(4-piperininyl)amide derivative represented by the following formula (I): (wherein R1 represents C1-6 alkyl, furyl, etc.; R2 represents amino, acetylamino, ureido, etc.; R3 represents hydrogen, C2-8 alkoxycarbonyl, etc.; R4 represents optionally substituted phenyl, etc.; R5 represents hydroxyl, benzyloxy, etc.; R6 represents hydrogen or methyl; and m is 1 or 2) or a salt of the derivative, and an analgesic containing the derivative or salt.
由下式(I)代表的N-取代的N-(4-
哌啶基)酰胺衍
生物:(其中R1代表C1-6烷基、
呋喃基等;R2代表
氨基、乙酰
氨基、
脲基等;R3代表氢、C2-8烷氧基羰基等;R4代表任选取代的苯基等;R5代表羟基、苄氧基等;R6代表氢或甲基;m为1或2)或该衍
生物的盐,以及含有该衍
生物或盐的镇痛剂。