Using O=C(NC12CCC(Cn3c1nc(C(=O)NCc1ccc(F)cc1)c(O)c3=O)OC2)OCc1ccccc1 to produce NC12CCC(Cn3c1nc(C(=O)NCc1ccc(F)cc1)c(O)c3=O)OC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.