Task: Answer the following question about the molecule with SMILES O=c1[nH]c(=O)n([C@@H]2O[C@H](CO)[C@@H](O)[C@@H]2O)cc1/C=C/Br.
Question: Please describe this drug.
Result: Sorivudine is an organic molecular entity.
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
O=c1[nH]c(=O)n([C@@H]2O[C@H](CO)[C@@H](O)[C@@H]2O)cc1/C=C/Br
C1=C(C(=O)NC(=O)N1[C@H]2[C@H]([C@@H]([C@H](O2)CO)O)O)/C=C/Br
5-[(E)-2-bromoethenyl]-1-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
Please describe this drug.