Using Nc1cc(S(=O)(=O)O)cc2cccc(S(=O)(=O)O)c12 to produce Nc1cc(S(=O)(=O)[O-])cc2cccc(S(=O)(=O)[O-])c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.