Using CC1(C)CC(Br)c2cc(C#N)ccc2O1, [N-]=[N+]=[N-] to produce CC1(C)CC(N=[N+]=[N-])c2cc(C#N)ccc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.