The piperidine derivative of the present invention in which the 4-position of the piperidine ring is bonded, via vinylene, to a mono-substituted (—R
1
) or unsubstituted benzene ring and the 1-position of the piperidine ring has an acyl group [—C(═O)—R
4
], or a pharmaceutically acceptable salt thereof has an excellent sodium channel inhibition action and an excellent analgesic action and shows a high analgesic effect particularly to neurogenic pain. The present compound is useful as a sodium channel inhibitor of low side effect
本发明的
哌啶衍
生物中,
哌啶环的4位通过
乙烯基与单取代(—R1)或未取代的苯环键合,
哌啶环的1位具有酰基[—C(═O)—R4]或其药学上可接受的盐,具有出色的
钠通道抑制作用和出色的镇痛作用,并对神经源性疼痛表现出高度镇痛效果。该化合物可用作低副作用的
钠通道
抑制剂。