Using Cc1ccc(C(C)C)c(O)c1C(=O)O, O=S(=O)(Cl)c1ccc(Cl)cc1 to produce Cc1c(S(=O)(=O)c2ccc(Cl)cc2)cc(C(C)C)c(O)c1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.