IUPAC:2-amino-7-(but-2-yn-1-yl)-9-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6,7,8,9-tetrahydro-3H-purine-6,8-dione
IUPAC:2-amino-7-(but-2-yn-1-yl)-9-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6,7,8,9-tetrahydro-3H-purine-6,8-dione