Using CCOC(=O)C(C(=O)OCC)C(=O)C(C)(C)c1ccc(Cl)cc1F to produce CCOC(=O)C1=C(O)c2cc(Cl)cc(F)c2C(C)(C)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.