Using CC(C)(C)O, O=C1CC(C(=O)O)C(C(=O)OCc2ccccc2)O1 to produce CC(C)(C)OC(=O)C1CC(=O)OC1C(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.