Using Fc1ccc(S)cc1, CC1(C)COC(c2ccc(F)cc2F)=N1 to produce CC1(C)COC(c2ccc(F)cc2Sc2ccc(F)cc2)=N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.