Using COC(=O)C1(C)C(=O)Nc2ccc(C(F)(F)F)cc2CC1c1ccccc1OC to produce COc1ccccc1C1Cc2cc(C(F)(F)F)ccc2NC(=O)C1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.