Using Cc1ccc(S(=O)(=O)Cl)cc1, OC1COC(c2ccccc2)OC1 to produce Cc1ccc(S(=O)(=O)OC2COC(c3ccccc3)OC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.