Using O=P(Cl)(Cl)Cl, CCc1ccc(-c2ccc(S(=O)(=O)n3cccc3)s2)cc1 to produce CCc1ccc(-c2ccc(S(=O)(=O)Cl)s2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.