Using CC(C)(C)OC(=O)N1CCC(C(O)c2ccc(C(F)(F)F)cc2)CC1 to produce CC(C)(C)OC(=O)N1CCC(C(=O)c2ccc(C(F)(F)F)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.