Using CC(O)C1(C(=O)NCc2cc(C(F)(F)F)ccc2OC(C)(C)C)CCC(=O)C1 to produce CC(O)C1(C(=O)NCc2cc(C(F)(F)F)ccc2OC(C)(C)C)CCC(O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.