Using [N-]=[N+]=[N-], CC(C)(C)c1nc(N2CCN(CCCCl)CC2)cc(C(F)(F)F)n1 to produce CC(C)(C)c1nc(N2CCN(CCCN=[N+]=[N-])CC2)cc(C(F)(F)F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.