Using NNc1cc(S(=O)(=O)O)ccc1S(=O)(=O)O, CC(=O)C(C)C to produce CC1=Nc2c(S(=O)(=O)[O-])ccc(S(=O)(=O)[O-])c2C1(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.