Using COC(=O)C(C)c1ccc2cc(OC(=O)COCc3ccccc3)ccc2c1 to produce COC(=O)C(C)c1ccc2cc(OC(=O)CO)ccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.