Using O=C(Nc1cc(Cl)cc(Cl)c1)c1cccc(Nc2ncccc2[N+](=O)[O-])c1 to produce Nc1cccnc1Nc1cccc(C(=O)Nc2cc(Cl)cc(Cl)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.