Using [N-]=[N+]=[N-], CC(C)(C)c1cc(N)n(-c2cc(CCl)c3ccccc3c2)n1 to produce CC(C)(C)c1cc(N)n(-c2cc(CN=[N+]=[N-])c3ccccc3c2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.