Using O=[N+]([O-])c1ccc2c(c1)S(=O)(=O)c1cc([N+](=O)[O-])ccc1-2 to produce Nc1ccc2c(c1)S(=O)(=O)c1cc(N)ccc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.