(R)-8-(3-Aminopiperidin-1-yl)-7-(but-2-yn-1-yl)-1-((4-methylquinazolin-2-yl)methyl)-3-nitroso-3,7-dihydro-1H-purine-2,6-dione
(R)-8-(3-Aminopiperidin-1-yl)-7-(but-2-yn-1-yl)-1-((4-methylquinazolin-2-yl)methyl)-3-nitroso-3,7-dihydro-1H-purine-2,6-dione