Using CC(=O)OC(C)=O, OC(c1ccc(C(F)(F)F)cc1)C1CC1(F)F to produce CC(=O)OC(c1ccc(C(F)(F)F)cc1)C1CC1(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.