Using COC(=O)c1cc(-c2ccc(F)cc2)c2ccc(CN3C(=O)CCC3=O)c(F)c2n1 to produce O=C(O)c1cc(-c2ccc(F)cc2)c2ccc(CN3C(=O)CCC3=O)c(F)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.