Using COC(=O)[C@@H](C)N, O=[N+]([O-])c1cnc(Cl)nc1Cl to produce COC(=O)[C@@H](C)Nc1nc(Cl)ncc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.