Using COC(=O)[C@H]1CC[C@H](N=[N+]=[N-])[C@H](NC(=O)OC(C)(C)C)C1 to produce CC(C)(C)OC(=O)N[C@@H]1C[C@@H](C(=O)O)CC[C@@H]1N=[N+]=[N-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.