Using C[C@H](C(=O)O)N1OC[C@H](O)[C@H](N=[N+]=[N-])C1=O to produce C[C@H](C(=O)O)N1OC[C@H](O)[C@H](N)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.