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