The present invention relates to substituted xanthines of general formula
1
wherein R
1
to R
3
are defined as in claims 1 to 16, the tautomers, the stereoisomers, the mixtures, the prodrugs thereof and the salts thereof which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPI-IV).
本发明涉及一般式1的取代
黄嘌呤,其中R1至R3的定义如权利要求1至16所述,其互变异构体、立体异构体、混合物、前药及其盐具有有价值的药理学特性,特别是对酶二肽基肽酶-IV(D
PI-IV)的抑制作用。