Task: Please answer the following question about the molecule with SMILES O=C(c1cc(Cn2c(=O)[nH]c(=O)c3c(F)cccc32)ccc1F)N1CCN(c2ncccn2)CC1.
Request: Which USAN substem can this drug or clinical candidate name be matched with?
Completion: -parib
Task: Please answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
O=C(c1cc(Cn2c(=O)[nH]c(=O)c3c(F)cccc32)ccc1F)N1CCN(c2ncccn2)CC1
O=C(c1cc(Cn2c(=O)[nH]c(=O)c3c(F)cccc32)ccc1F)N1CCN(c2ncccn2)CC1
5-fluoro-1-[[4-fluoro-3-(4-pyrimidin-2-ylpiperazine-1-carbonyl)phenyl]methyl]quinazoline-2,4-dione
Which USAN substem can this drug or clinical candidate name be matched with?
-parib