Using COCOc1c(C(C)=O)cc(C(C)(C)C)cc1-c1ccc(C(F)(F)F)nc1 to produce CC(=O)c1cc(C(C)(C)C)cc(-c2ccc(C(F)(F)F)nc2)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.