Disclosed are substituted xanthines of the formula
wherein R is defined as in claim
1
, the tautomers, the stereoisomers, the mixtures thereof and the salts thereof, which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPP-IV).
本发明涉及一种公式如下的取代
黄嘌呤:其中R如权利要求1所定义,其互变异构体、立体异构体、混合物及其盐,具有有价值的药理学特性,特别是对酶二肽基肽酶-IV(
DPP-IV)的抑制作用。