8-[3-AMINO-PIPERIDIN-1-YL]-XANTHINES, THE PREPARATION THEREOF AND THEIR USE AS PHARMACEUTICAL COMPOSITIONS

摘要

The invention relates to substituted xanthines of general formula (I)in which R-Rare as defined in claims 1-16, their tautomers, their stereoisomers, mixtures thereof, their prodrugs and their salts which have valuable pharmaceutical properties, first of all inhibiting action on the activity of dipeptidyl peptidase-IV (DPP-IV)