Using CCOC(=O)C(Cc1ccc(C(C)(F)F)cc1)C(=O)c1ccc(F)cc1 to produce CCOC(=O)C(Cc1ccc(C(C)(F)F)cc1)C(O)c1ccc(F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.