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