Using CC(=O)N[C@@H](CSC(=O)[C@H](Cc1cncn1C(=O)OC(C)(C)C)NC(=O)CCNC(=O)OC(C)(C)C)C(N)=O to produce CC(=O)N[C@@H](CSC(=O)[C@H](Cc1cnc[nH]1)NC(=O)CCN)C(N)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.