Using Nc1ccc([N+](=O)[O-])cc1, Clc1cc(Br)c2nccn2n1 to produce O=[N+]([O-])c1ccc(Nc2cc(Cl)nn3ccnc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.