8-((3R)-3-Aminopiperidin-1-yl)-7-(but-2-yn-1-yl)-3-Methyl-1-((4-Methylquinazolin-2-yl)Methyl)-3,7-Dihydro-1H-Purine-2,6-Dione
1H-Purine-2,6-dione, 8-((3R)-3-amino-1-piperidinyl)-7-(2-butynyl)-3,7-dihydro-3-methyl-1-((4-methyl-2-quinazolinyl)methyl)-