申请人:Kyowa Hakko Kirin Co., Ltd.
公开号:EP2881394A1
公开(公告)日:2015-06-10
The ring-fused heterocyclic compound or a pharmaceutically acceptable salt thereof according to the present invention has a T-type calcium channel regulatory effect, and is useful, for example, as a medicament for treating and/or preventing pruritus. The present invention provides a ring-fused heterocyclic compound represented by the following general formula (I) or a pharmaceutically acceptable salt thereof and the like which has a T-type calcium channel regulatory effect and is useful as a therapeutic and/or preventive agent for pruritus, and the like.
[wherein, R1 represents optionally substituted lower alkyl and the like, R2 represents optionally substituted lower alkyl and the like, R3 represents the formula (II):
(wherein, n represents 0 or 1, R3a represents a hydrogen atom and the like, R3b represents a hydrogen atom and the like, and R3c represents a hydrogen atom and the like) and the like, Q represents a hydrogen atom and the like, and W1 represents a nitrogen atom and the like, W2 represents a nitrogen atom and the like]
根据本发明的环融杂环化合物或其药学上可接受的盐具有 T 型钙通道调节作用,例如可用作治疗和/或预防瘙痒症的药物。本发明提供了由以下通式(I)代表的环融杂环化合物或其药学上可接受的盐等,该化合物具有 T 型钙通道调节作用,可用作治疗和/或预防瘙痒症等的药物。
[其中,R1 代表任选取代的低级烷基等,R2 代表任选取代的低级烷基等,R3 代表式 (II):
(其中,n 代表 0 或 1,R3a 代表氢原子等,R3b 代表氢原子等,R3c 代表氢原子等)等,Q 代表氢原子等,W1 代表氮原子等,W2 代表氮原子等]。