The invention relates to 4-oxoimidazolidine-2-spiropiperidine derivatives represented by a general formula [I]
[in which A
1
, A
2
, A
3
, A
4
and A
5
stand for optionally halogen-substituted methine, or nitrogen atom; R
1
and R
2
stand for lower alkyl or the like; R
3
stands for hydrogen or lower alkyl; R
4
and R
5
stand for hydrogen, or lower alkyl which is optionally substituted with hydroxy, or the like]
or salts thereof. These compounds act as nociceptin receptor agonist, and are useful as analgesic, reliever from tolerance to narcotic analgesic, reliever from dependence on narcotic analgesic, analgesic enhancer, antiobestic, drug for ameliorating brain function, remedy for schizophrenia, drug for treating regressive neurodegenerative diseases, antianxiety agent or antidepressant and remedy for diabetes insipidus and polyuria; and the like.
本发明涉及一种由通式[I]所表示的4-氧代
咪唑啉-2-螺环
哌啶衍
生物[其中A1、A2、A3、A4和A5代表可选的卤代亚甲基或氮原子;R1和R2代表低碳基或类似物;R3代表氢或低碳基;R4和R5代表氢或可选地用羟基等替代的低碳基]或其盐。这些化合物作为伤害感受受体激动剂,可用作镇痛剂、缓解对麻醉镇痛剂的耐受性、缓解对麻醉镇痛剂的依赖、镇痛增强剂、抗肥胖剂、改善大脑功能的药物、治疗精神分裂症的药物、治疗退行性神经疾病的药物、抗焦虑剂或抗抑郁剂以及治疗尿崩症和多尿症的药物等。