The invention relates to compounds of the formula
or a pharmaceutically acceptable salt thereof, wherein R′, R
1
through R
7
and Ar are as defined herein. These compounds are useful as inhibitors of phosphodiesterase 10 (PDE10A) which are useful in treating central nervous system diseases such as psychosis and also in treating, for example, obesity, type II diabetes, metabolic syndrome, glucose intolerance, pain and ophthalmic diseases.
本发明涉及以下化合物或其药学上可接受的盐,其中R′、R1至R7和Ar的定义如下。这些化合物可用作
磷酸二酯酶10(PDE10A)的
抑制剂,对于治疗中枢神经系统疾病如精神病以及治疗肥胖症、2型糖尿病、代谢综合症、
葡萄糖不耐受症、疼痛和眼科疾病等方面也有用处。