IUPAC:8-[(3R)-3-aminopiperidin-1-yl]-1-[(4-{[2-({8-[(3R)-3-aminopiperidin-1-yl]-7-(but-2-yn-1-yl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl}methyl)quinazolin-4-yl]methyl}-4-methyl-1,4-dihydroquinazolin-2-yl)methyl]-7-(but-2-yn-1-yl)-3-methyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione
IUPAC:8-[(3R)-3-aminopiperidin-1-yl]-1-[(4-{[2-({8-[(3R)-3-aminopiperidin-1-yl]-7-(but-2-yn-1-yl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl}methyl)quinazolin-4-yl]methyl}-4-methyl-1,4-dihydroquinazolin-2-yl)methyl]-7-(but-2-yn-1-yl)-3-methyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione