Patent ID: 6949515

Claim:
A dipeptidyl peptidase IV (DP-IV) inhibitor compound of the general formula wherein A is an amino acid having at least one functional group in the side chain, B is a chemical compound covalently bound to at least one functional group of the side chain of A, chosen from the group consisting of: (a) oligopeptides having a chain length of up to 20 amino acids, except for homopolymers of glycine consisting of up to 6 glycine monomers, and (b) polyethylene glycols having molar masses of up to 20 000 g/mol; and C is a group amide-bonded to A, chosen from the group consisting of thiazolidine, pyrrolidine, cyanopyrrolidine, hydroxyproline, dehydroproline and piperidine.