Using O=S(Cc1ccc(CCl)cc1)c1ccccc1, O=C(OO)c1cccc(Cl)c1 to produce O=S(=O)(Cc1ccc(CCl)cc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.