申请人:Sawada Takashi
公开号:US09000186B2
公开(公告)日:2015-04-07
A ring-fused heterocyclic derivative represented by the following general formula (I) or a pharmaceutically acceptable salt thereof having a T-type calcium channel regulatory effect and useful as a pruritus therapeutic and/or preventive agent, and the like are provided. In the general formula (I), R1 represents optionally substituted lower alkyl, and the like; R2 represents an optionally substituted cycloalkyl, and the like; Q represents a hydrogen atom, and the like; R3 represents —C(═O)NR8R9 (wherein R8 and R9 may be the same or different, and each represents a hydrogen atom, and the like), and the like; L1 represents —CR11AR11B— (wherein R11A and R11B may be the same or different, and each represents a hydrogen atom, and the like), and the like; and W1 and W2 may be the same or different, and each represents C—R12 (wherein R12 represents a hydrogen atom, and the like), and the like.
提供一种由以下一般式(I)表示的环融合杂环衍生物或其药学上可接受的盐,具有T型钙通道调节作用,可用作瘙痒治疗和/或预防剂等。在一般式(I)中,R1代表可选取代的较低烷基等;R2代表可选取代的环烷基等;Q代表氢原子等;R3代表—C(═O)NR8R9(其中R8和R9可以相同或不同,每个代表氢原子等)等;L1代表—CR11AR11B—(其中R11A和R11B可以相同或不同,每个代表氢原子等)等;W1和W2可以相同或不同,每个代表C—R12(其中R12代表氢原子等)等。