Using CSC[C@H](NC(=O)OCc1ccccc1)C(=O)N[C@@H](Cc1ccccc1)[C@H](O)C[C@@]1(C(N)=O)CCCN1C(C)(C)C, O=C(OO)c1cccc(Cl)c1 to produce CS(=O)C[C@H](NC(=O)OCc1ccccc1)C(=O)N[C@@H](Cc1ccccc1)[C@H](O)C[C@@]1(C(N)=O)CCCN1C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.