Using O=S(Cl)Cl, Cc1nc(-c2ccc(C(F)(F)F)c(F)c2F)sc1CO to produce Cc1nc(-c2ccc(C(F)(F)F)c(F)c2F)sc1CCl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.