Using [N-]=[N+]=[N-], CC1(C)Oc2ccc(C(=O)CCl)cc2S1 to produce CC1(C)Oc2ccc(C(=O)CN=[N+]=[N-])cc2S1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.