Using O=[N+]([O-])c1cnc(Cl)cc1Cl, CC(C)(C)OC(=O)N1CCc2ccc(N)cc2C1 to produce CC(C)(C)OC(=O)N1CCc2ccc(Nc3cc(Cl)ncc3[N+](=O)[O-])cc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.