Using O=C(O)C(F)(F)F, COc1ccc(CN2C(=O)c3ccccc3C2=O)cc1 to produce COc1ccc(CN2C(=O)c3ccccc3C2=O)cc1C=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.