申请人:——
公开号:US20030119855A1
公开(公告)日:2003-06-26
There is provided an excellent novel analgesic having an analgesic effect which is effective widely against a pain including a chronic pain or an allodynia accompanied with herpes zoster by acting on a nociceptin receptor.
The present invention relates to a compound represented by the following formula:
1
or a salt thereof.
In the formula, X and Y are same or different and each represents a nitrogen atom or CH; R
1
represents a hydrogen atom or alkyl and the like; A
1
and A
2
are same or different and each represents a single bond or a divalent aliphatic hydrocarbon group; Q represents a single bond, cycloalkylene group, phenylene group or divalent heterocyclic group; R
2A
, R
2B
, R
2C
and R
2D
are same or different and each represents a hydrogen atom, alkyl or phenyl; E represents a ethenylene group or —NRCO— (in which R is hydrogen or alkyl) and the like; R
3
represents a phenyl group or a heterocyclic group; R
4
and R
5
are same or different and each represents a hydrogen atom, alkyl, alkoxy, aralkyloxy, halogen, nitro, hydroxy, alkoxycarbonyl, —NR
6
R
7
(in which R
6
and R
7
are same or different and each represents a hydrogen atom or alkyl) and the like.
提供了一种出色的新型镇痛药,具有对疼痛产生镇痛作用的效果,广泛对抗各种疼痛,包括慢性疼痛或伴随带状疱疹的痛觉过敏,通过作用于一种痛觉素受体。本发明涉及以下式表示的化合物或其盐。在该式中,X和Y相同或不同,每个代表一个氮原子或CH;R1代表一个氢原子或烷基等;A1和A2相同或不同,每个代表一个单键或双价脂肪烃基;Q代表一个单键,环烷基,苯基或双价杂环基;R2A,R2B,R2C和R2D相同或不同,每个代表一个氢原子,烷基或苯基;E代表一个乙烯基或—NRCO—(其中R为氢或烷基)等;R3代表一个苯基或杂环基;R4和R5相同或不同,每个代表一个氢原子,烷基,烷氧基,芳基氧基,卤素,硝基,羟基,烷氧羰基,—NR6R7(其中R6和R7相同或不同,每个代表一个氢原子或烷基)等。