Using COC(=O)[C@@H]1[C@H](CI)CCN1[C@@H](C)c1ccccc1, [N-]=[N+]=[N-] to produce COC(=O)[C@@H]1[C@H](CN=[N+]=[N-])CCN1[C@@H](C)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.