申请人:Kissei Pharmaceutical Co., Ltd.
公开号:EP3315492A1
公开(公告)日:2018-05-02
[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 C6-10 aryl or the like; X is CR4a or the like; R1 and R2 are a hydrogen atom or the like; R3 is a hydrogen atom or the like; R4 is a hydrogen atom or the like; ring B is C6-10 aryl or the like; R5 is a hydrogen atom or the like; R6a is a hydrogen atom or the like; R7a is a hydrogen atom or the like; R7b is a hydrogen atom or the like; R6b is a hydrogen atom or the like; R8 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.
问题
本发明旨在提供一种新型吡唑衍生物或其药学上可接受的盐、包含其的药物组合物及其药物用途。
[解决方案]
本发明提供一种由式(I)代表的化合物或其药学上可接受的盐,该化合物具有 TRPM8 抑制作用:
其中环 A 是 C6-10 芳基或类似物;X 是 CR4a 或类似物;R1 和 R2 是氢原子或类似物;R3 是氢原子或类似物;R4 是氢原子或类似物;环 B 是 C6-10 芳基或类似物;R5 是氢原子或类似物; R6a 是氢原子或类似物; R7a 是氢原子或类似物; R7b 是氢原子或类似物; R6b 是氢原子或类似物; R8 是氢原子或类似物; n 是 0、1 或 2。因此,本发明的式 (I) 所代表的化合物或其药学上可接受的盐可用作治疗或预防由传入神经元过度兴奋或紊乱引起的疾病或症状的药物。