Using COC(=O)C(C)(C)Cc1ccc(OC)c(C(=O)NCc2ccc(C(F)(F)F)cc2)c1 to produce COc1ccc(CC(C)(C)C(=O)O)cc1C(=O)NCc1ccc(C(F)(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.