Q: What is the definition of this compound's USAN stem?
 The Chemical can be represented with the SMILES CC(=O)OC[C@H]1O[C@@H](n2ncc(=O)[nH]c2=O)[C@H](OC(C)=O)[C@@H]1OC(C)=O.
Answer: ribofuranil derivatives (pyrazofurin type)
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CC(=O)OC[C@H]1O[C@@H](n2ncc(=O)[nH]c2=O)[C@H](OC(C)=O)[C@@H]1OC(C)=O
CC(=O)OC[C@H]1O[C@@H](n2ncc(=O)[nH]c2=O)[C@H](OC(C)=O)[C@@H]1OC(C)=O
[(2R,3R,4R,5R)-3,4-diacetyloxy-5-(3,5-dioxo-1,2,4-triazin-2-yl)oxolan-2-yl]methyl acetate
What is the definition of this compound's USAN stem?
ribofuranil derivatives (pyrazofurin type)