Using COC(=O)c1c(OC)c(F)c(NCc2ccccc2)c(F)c1OC to produce COc1c(F)c(NCc2ccccc2)c(F)c(OC)c1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.