Using O=C(Nc1cc2nc(-c3ccc([N+](=O)[O-])cc3)[nH]c2cn1)c1ccccn1 to produce Nc1ccc(-c2nc3cc(NC(=O)c4ccccn4)ncc3[nH]2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.