申请人:BANYU PHARMACEUTICAL CO., LTD.
公开号:EP1505063A1
公开(公告)日:2005-02-09
This invention provides compounds which are represented by a general formula [I]
[in which X stands for hydrogen or halogen; B stands for halogen, cyano or optionally fluorine-substituted lower alkyl; D stands for a 3-10 membered aliphatic nitrogen-containing heterocyclic group; R3, R4 and R5 may be same or different, and each stands for hydrogen, lower alkyl optionally having substituent group(s) and the like; and a is 0 or 1]. These compounds exhibit high affinity to nociceptin receptors and whereby inhibit actions of nociceptin, and are useful as an analgesic, antiobestic, agent for ameliorating brain function, treating agents for Alzheimer's disease and dementia, and therapeutic agents for schizophrenia, neurodegenerative diseases, depression, diabetes insipidus, polyuria, hypotension and the like.
本发明提供了通式[I]表示的化合物。
[其中,X 代表氢或卤素;B 代表卤素、氰基或任选由氟取代的低级烷基;D 代表 3-10 位脂肪族含氮杂环基团;R3、R4 和 R5 可以相同或不同,各自代表氢、任选具有取代基团的低级烷基等;a 为 0 或 1]。这些化合物对痛觉素受体具有高亲和力,从而抑制痛觉素的作用,可用作镇痛剂、抗镇静剂、改善脑功能的药物、治疗阿尔茨海默病和痴呆症的药物,以及精神分裂症、神经退行性疾病、抑郁症、糖尿病、多尿症、低血压等疾病的治疗药物。