Compounds of formula (I)
wherein R
1
to R
4
are defined as in the claims, or the prodrugs or salts thereof, particularly the physiologically acceptable salts thereof, pharmaceutical compositions containing these compounds, and methods of treating type I and type II diabetes mellitus, arthritis, obesity, allograft transplantation, or calcitonin-induced osteoporosis using these compounds.
式(I)化合物,其中R1到R4的定义如权利要求书中所述,或其前药或盐,特别是其生理上可接受的盐,以及含有这些化合物的制药组合物,以及使用这些化合物治疗I型和II型糖尿病、关节炎、肥胖症、移植物排斥反应或
降钙素诱导性骨质疏松症的方法。