Using CSc1cccc2c1C(=O)N1CCC[C@H]1c1c(C(=O)OC(C)(C)C)ncn1-2, O=C(OO)c1cccc(Cl)c1 to produce CS(=O)c1cccc2c1C(=O)N1CCC[C@H]1c1c(C(=O)OC(C)(C)C)ncn1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.