Using CC(C)(C)S(=O)(=O)C[C@@H](Cc1ccccc1)C(=O)N[C@@H](Cc1c[nH]cn1)C(=O)N[C@@H](CC1CCCCC1)[C@@H](O)[C@@H](N=[N+]=[N-])C1CC1 to produce CC(C)(C)S(=O)(=O)C[C@@H](Cc1ccccc1)C(=O)N[C@@H](Cc1c[nH]cn1)C(=O)N[C@@H](CC1CCCCC1)[C@H](O)[C@@H](N)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.