Using O=S([O-])S(=O)(=O)[O-], CSc1ccc(C(=O)O)cc1[N+](=O)[O-] to produce CS(=O)c1ccc(C(=O)O)cc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.