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