申请人:Nippon Shinyaku Co., Ltd.
公开号:US06794389B2
公开(公告)日:2004-09-21
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:
or a salt thereof.
In the formula, X and Y are same or different and each represents a nitrogen atom or CH; R1 represents a hydrogen atom or alkyl and the like; A1 and A2 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; R2A, R2B, R2C and R2D 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; R3 represents a phenyl group or a heterocyclic group; R4 and R5 are same or different and each represents a hydrogen atom, alkyl, alkoxy, aralkyloxy, halogen, nitro, hydroxy, alkoxycarbonyl, —NR6R7 (in which R6 and R7 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止痛剂,具有广泛的止痛效果,可用于治疗包括带状疱疹伴随的慢性疼痛或痛觉过敏等疼痛。该止痛剂通过作用于nociceptin受体来发挥作用。本发明涉及以下公式所表示的化合物或其盐。在该公式中,X和Y相同或不同,每个代表氮原子或CH; R1代表氢原子或烷基等; A1和A2相同或不同,每个代表单键或二价脂肪烃基; Q代表单键,环烷基,苯基或二价杂环基; R2A,R2B,R2C和R2D相同或不同,每个代表氢原子,烷基或苯基; E代表乙烯基或—NRCO—(其中R为氢或烷基)等; R3代表苯基或杂环基; R4和R5相同或不同,每个代表氢原子,烷基,烷氧基,芳基烷氧基,卤素,硝基,羟基,烷氧羰基,—NR6R7(其中R6和R7相同或不同,每个代表氢原子或烷基)等。