Using COC(=O)N[C@H](C(=O)N[C@@H](Cc1ccccc1)[C@@H](O)C[C@H](Cc1ccccc1)NC(=O)[C@@H](N1CCN(Cc2cccc(C)n2)C1=O)C(C)(C)C)C(C)(C)C, CS(C)=O to produce COC(=O)N[C@H](C(=O)N[C@@H](Cc1ccccc1)[C@H](C[C@H](Cc1ccccc1)NC(=O)[C@@H](N1CCN(Cc2cccc(C)n2)C1=O)C(C)(C)C)OCSC)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.