Using O=N[O-], O=[N+]([O-])c1ccc(Br)cc1NCc1ccc(Cl)nn1 to produce Clc1ccc(Cn2nnc3ccc(Br)cc32)nn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.