申请人:Sawada Takashi
公开号:US20140038941A1
公开(公告)日:2014-02-06
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), R
1
represents optionally substituted lower alkyl, and the like; R
2
represents an optionally substituted cycloalkyl, and the like; Q represents a hydrogen atom, and the like; R
3
represents —C(═O)NR
8
R
9
(wherein R
8
and R
9
may be the same or different, and each represents a hydrogen atom, and the like), and the like; L
1
represents —CR
11A
R
11B
— (wherein R
11A
and R
11B
may be the same or different, and each represents a hydrogen atom, and the like), and the like; and W
1
and W
2
may be the same or different, and each represents C—R
12
(wherein R
12
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表示可选取代的低碳基等;R2表示可选取代的环烷基等;Q表示氢原子等;R3表示-C(═O)NR8R9(其中R8和R9可以相同或不同,且每个表示氢原子等)等;L1表示-CR11AR11B-(其中R11A和R11B可以相同或不同,且每个表示氢原子等)等;W1和W2可以相同或不同,且每个表示C-R12(其中R12表示氢原子等)等。