Using FC(F)(F)C(F)(F)C(F)(F)C(F)(F)I, CC1(C2(C=O)CC2)OCCO1 to produce CC1(C2(C(O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F)CC2)OCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.