Using FC(F)(I)C(F)(F)C(F)(F)I, CC(=O)Oc1ccc(I)cc1 to produce CC(=O)Oc1ccc(C(F)(F)C(F)(F)C(F)(F)I)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.