SMILES: CC#CCN1C2=C(N=C1N3CCC[C@H](C3)N)N(C(=O)N(C2=O)CC4=NC5=CC=CC=C5C(=N4)C)C
Description: The molecule is a xanthine that is 7H-xanthine bearing (4-methylquinazolin-2-yl)methyl, methyl, but-2-yn-1-yl and 3-aminopiperidin-1-yl substituents at positions 1, 3, 7 and 8 respectively (the R-enantiomer). Used for treatment of type II diabetes. It has a role as an EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor and a hypoglycemic agent. It is a member of quinazolines and an aminopiperidine. It derives from a 7H-xanthine.