Using CC(=O)N1CCc2cc(S(=O)(=O)C[N+](=O)[O-])ccc21 to produce O=[N+]([O-])CS(=O)(=O)c1ccc2c(c1)CCN2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.