Using Cc1cc(Br)cnc1CCCCN, O=[N+]([O-])c1cc(Cc2cccnc2)cnc1Cl to produce Cc1cc(Br)cnc1CCCCNc1ncc(Cc2cccnc2)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.