Using O=S(=O)(c1ccc(Cl)cc1)C(F)(F)F, O=C(O)c1ccc(Oc2cccc(O)c2)cc1 to produce O=C(O)c1ccc(Oc2cccc(Oc3ccc(S(=O)(=O)C(F)(F)F)cc3)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.