Task: Please answer the following question about the molecule with SMILES CCCCCCCCCCCCCCCC(=O)OC1CCCn2c1nc(C)c(CCN1CCC(c3noc4cc(F)ccc34)CC1)c2=O.
Description: What is the molecular weight of this compound's parent molecule?
Result: 664.91
Task: Please answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
CCCCCCCCCCCCCCCC(=O)OC1CCCn2c1nc(C)c(CCN1CCC(c3noc4cc(F)ccc34)CC1)c2=O
CCCCCCCCCCCCCCCC(=O)OC1CCCn2c1nc(C)c(CCN1CCC(c3noc4cc(F)ccc34)CC1)c2=O
[3-[2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl]-2-methyl-4-oxo-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-9-yl] hexadecanoate
What is the molecular weight of this compound's parent molecule?