Using O=C(O)c1ccc(OCc2c(-c3ccc(F)cc3)noc2CO)nc1, CC1(N)COC1 to produce CC1(NC(=O)c2ccc(OCc3c(-c4ccc(F)cc4)noc3CO)nc2)COC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.