Using COc1ccc2cc(C(=O)C(C)OS(C)(=O)=O)ccc2c1 to produce COc1ccc2cc(C(O)C(C)OS(C)(=O)=O)ccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.