Compounds of formula I are provided
1
as well as pharmaceutically acceptable salts and esters thereof, wherein R
1
to R
8
and n have the significance given in the specification can be used to treat non-insulin dependent diabetes mellitus.
提供了符合式I的化合物,以及其药用可接受的盐和酯,其中R1至R8和n的含义如规范中所述,可用于治疗非
胰岛素依赖型糖尿病。