Using Cc1ccc(S(=O)(=O)Cl)cc1, O=S1(=O)CCC(CO)C1 to produce Cc1ccc(S(=O)(=O)OCC2CCS(=O)(=O)C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.