Using CS(=O)(=O)c1ccccc1S(=O)(=O)Cl, Cc1cc(O)cc(O)c1 to produce Cc1cc(O)cc(OS(=O)(=O)c2ccccc2S(C)(=O)=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.