IUPAC: 1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde

SMILES: OC[C@H]1O[C@H](C[C@@H]1O)n1cc(C=O)c(=O)[nH]c1=O