申请人:Japan Tobacco Inc.
公开号:EP1072263A1
公开(公告)日:2001-01-31
The present invention relates to a compound of the formula [1' ]
wherein R2 is lower alkyl optionally substituted by hydroxy, amino and the like, ring B is phenyl, thienyl and the like, E is a single bond, -O-,-S- and the like, ring G is aryl, heterocyclic group and the like, R5 is halogen atom, hydroxy, lower alkyl optionally substituted by halogen atom etc., and the like, t is 0 or an integer of 1 to 5, when t is an integer of 2 to 5, each R5 may be the same or different, m is 0 or an integer of 1 to 8, and n is 0 or an integer of 1 to 4, and a nociceptin antagonist containing compound [1' ] as an active ingredient The compound [1' ] shows, due to nociceptin antagonistic action, analgesic effect against sharp pain such as postoperative pain and the like. The present invention also relates to the use of certain amide derivative inclusive of compound [1' ] as a nociceptin antagonist or analgesic.
本发明涉及一种式 [1' ]的化合物。
其中 R2 是任选被羟基、氨基等取代的低级烷基,环 B 是苯基、噻吩基等,E 是单键、-O-、-S- 等,环 G 是芳基、杂环基等,R5 是卤素原子、羟基、任选被卤素原子等取代的低级烷基,t 是 0 或 1 至 5 的整数,当 t 是 2 至 5 的整数时,每个 R5 可以是相同的、等,t 为 0 或 1 至 5 的整数,当 t 为 2 至 5 的整数时,每个 R5 可以相同或不同,m 为 0 或 1 至 8 的整数,n 为 0 或 1 至 4 的整数,以及含有化合物[1']作为活性成分的痛觉素拮抗剂。本发明还涉及包含化合物[1' ]的某些酰胺衍生物作为痛觉素拮抗剂或镇痛剂的用途。