Using CC(C)(C)OC(=O)Cn1ccc2ccc(OCc3cc(-c4ccc(C(F)(F)F)cc4)[nH]n3)cc21 to produce O=C(O)Cn1ccc2ccc(OCc3cc(-c4ccc(C(F)(F)F)cc4)[nH]n3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.