Using O=S(Cl)Cl, CC(C)N1CC(CO)C(c2ccccc2)(c2ccccc2)C1=O to produce CC(C)N1CC(CCl)C(c2ccccc2)(c2ccccc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.