The present invention relates to substituted xanthines of general formula
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 (DPP-IV).
本发明涉及一般式的取代
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、前药和盐具有有价值的药理特性,特别是对酶二肽基肽酶-IV(
DPP-IV)的抑制作用。