Using O=[N+]([O-])c1ccc(Cl)nc1, Cc1cc2nc(-c3[nH]nc4c3CCNC4)[nH]c2cc1C to produce Cc1cc2nc(-c3[nH]nc4c3CCN(c3ccc([N+](=O)[O-])cn3)C4)[nH]c2cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.