Using Cc1nc(CN2CCN([C@H](C(=O)N[C@@H](Cc3ccccc3)[C@H](O)CN=[N+]=[N-])C(C)C)C2=O)cs1 to produce Cc1nc(CN2CCN([C@H](C(=O)N[C@@H](Cc3ccccc3)[C@H](O)CN)C(C)C)C2=O)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.