Using CCc1cc(-c2cccs2)c(C)[nH]c1=O, O=S(=O)(O)Cl to produce CCc1cc(-c2ccc(S(=O)(=O)Cl)s2)c(C)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.