Using Nc1cccc(/C=C/c2cncc(Br)c2)c1, O=[N+]([O-])c1cccnc1Cl to produce O=[N+]([O-])c1cccnc1Nc1cccc(/C=C/c2cncc(Br)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.