Using O=S(Cl)Cl, O=c1n(CO)nc(-c2ccc(Cl)cc2)n1C1CC1 to produce O=c1n(CCl)nc(-c2ccc(Cl)cc2)n1C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.