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