Ether compound and pharmaceutical application thereof in prevention and treatment of diabetes and metabolic syndrome

The invention relates to an ether compound and a pharmaceutical application thereof in prevention and treatment of diabetes and metabolic syndrome. Specifically, the invention provides a compound as shown in a formula (I), an isomer, a raceme, a prodrug, a solvate, a deuterated substance or a pharmaceutically acceptable salt thereof, and Ar1, Ar2, X, Y and R are defined in the specification. 本发明醚类化合物及其在防治糖尿病及代谢综合征中的药学用途。具体地，本发明提供一种式(I)所示化合物、其异构体、外消旋体、其前体药物、其溶剂化物、氘代物或其药学上可接受的盐，其中Ar1，Ar2，X，Y，R如说明书中所定义。