Using CNc1nc(Br)cc(S(=O)(=O)c2ccc([N+](=O)[O-])cc2)n1 to produce CNc1nc(Br)cc(S(=O)(=O)c2ccc(N)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.