| 摘要 |
A compound of formula (I), wherein A is CH2 or (CH2)2; R<1> is hydrogen, arylalkyl, alkenyl, or alkyl; R<2> is alkyl or perfluoroalkyl; and R<3> and R<4> are as defined herein. Further provided are methods of using such compounds for the treatment of diabetes and related diseases, and to pharmaceutical compositions containing such compounds.
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