The present invention provides the compounds represented by formula (I):
(I)
or pharmaceutical salts thereof, wherein:
X
1
represents oxygen atoms and the like, X
2
represents nitrogen atoms and the like, X
3
represents nitrogen atoms and the like, X
4
represents nitrogen atoms and the like, R
1
represents formula (II-1):
wherein X
5
represents sulfur atoms and the like, A
1
represents carbon atoms and the like, A
2
represents nitrogen atoms and the like and A ring represents phenyl group and the like, having mGluR1 inhibiting effect, and being usefull for preventing or treating convulsion, acute pain, inflammatory pain, chronic pain, brain disorder such as cerebral infarction or transient ischemick attack, psychotic disorder such as schizophrenia, anxiety, drug dependence, Parkinson's disease, or gastrointestinal disorder.
本发明提供了由公式(I)所表示的化合物:(I)或其药物盐,其中:X1代表
氧原子等,X2代表
氮原子等,X3代表
氮原子等,X4代表
氮原子等,R1代表公式(II-1):其中X5代表
硫原子等,A1代表
碳原子等,A2代表
氮原子等,A环代表
苯基等,具有mGluR1抑制作用,适用于预防或治疗惊厥、急性疼痛、炎症性疼痛、慢性疼痛、脑部疾病如脑梗死或短暂性脑缺血发作、精神疾病如精神分裂症、焦虑、药物依赖、帕
金森病或胃肠道疾病。