Using O=[N+]([O-])c1ccccc1S(=O)(=O)Cl, CCN1C(=O)C(C)(C)C(=O)N(C)c2cc(CN)ccc21 to produce CCN1C(=O)C(C)(C)C(=O)N(C)c2cc(CNS(=O)(=O)c3ccccc3[N+](=O)[O-])ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.