申请人:KISSEI PHARMACEUTICAL CO., LTD.
公开号:US20180170879A1
公开(公告)日:2018-06-21
[Problem] The present invention is to provide a novel pyrazole derivative, or a pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the same, and a pharmaceutical use thereof.
[Solution] The present invention provides a compound represented by the formula (I) or a pharmaceutically acceptable salt thereof, which has TRPM8 inhibitory effects:
wherein ring A is C
6-10
aryl or the like; X is CR
4a
or the like; R
1
and R
2
are a hydrogen atom or the like; R
3
is a hydrogen atom or the like; R
4
is a hydrogen atom or the like; ring B is C
6-10
aryl or the like; R
5
is a hydrogen atom or the like; R
6a
is a hydrogen atom or the like; R
7a
is a hydrogen atom or the like; R
7b
is a hydrogen atom or the like; R
6b
is a hydrogen atom or the like; R
8
is a hydrogen atom or the like; n is 0, 1 or 2. Therefore, the compound represented by the formula (I) of the present invention or a pharmaceutically acceptable salt thereof is useful as an agent for treating or preventing diseases or symptoms caused by hyperexcitability or disorder of afferent neurons.