Task: Answer the following question about the molecule with SMILES Nc1nc2c(ncn2COCCO)c(=O)[nH]1.
Request: What is the definition of this compound's USAN stem?
Completion: antivirals: antivirals (acyclovir type)
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
Nc1nc2c(ncn2COCCO)c(=O)[nH]1
Nc1nc2c(ncn2COCCO)c(=O)[nH]1
2-amino-9-(2-hydroxyethoxymethyl)-1H-purin-6-one
What is the definition of this compound's USAN stem?