Using CN(C(=O)[O-])[C@H](CN=[N+]=[N-])C[C@H]1CCCOC1 to produce CN(C(=O)OC(C)(C)C)[C@H](CN)C[C@H]1CCCOC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.