Using C[C@@H](O)[C@H]1COC(C)(C)O1, Fc1cccc(CSc2nc(Cl)cc(Cl)n2)c1F to produce C[C@@H](Oc1cc(Cl)nc(SCc2cccc(F)c2F)n1)[C@H]1COC(C)(C)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.