IUPAC: 5-[(2S,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1-(prop-2-yn-1-yl)-1,2,3,4-tetrahydropyrimidine-2,4-dione

SMILES: OC[C@H]1O[C@H]([C@H](O)[C@@H]1O)c1cn(CC#C)c(=O)[nH]c1=O