摘要 |
The use of a compound of formula (1) <CHEM> wherein: R1, R2, R3 and R4 are each independently a C1-C6 alkyl group; Z is a thio, oxy or methylene group; A is a C1-C4 alkylene group; and R5 is a C1-C6 alkyl or -(CH2)n-(Ar) wherein n is an integer 0, 1, 2 or 3; and Ar is phenyl or napthyl unsubstituted or substituted with one to three substituents selected from hydroxy, methoxy, ethoxy, chloro, fluoro or C1-C6 alkyl group for preparing a pharmaceutical for treating diabetes mellitus. |