Using COC(=O)c1cc(S(C)(=O)=O)c(Oc2ccccc2)cc1Cl to produce CS(=O)(=O)c1cc(C(=O)O)c(Cl)cc1Oc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.