Using Oc1cccc(S(F)(F)(F)(F)F)c1, COC(=O)c1cc(S(C)(=O)=O)c(F)cc1C to produce COC(=O)c1cc(S(C)(=O)=O)c(Oc2cccc(S(F)(F)(F)(F)F)c2)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.