Using CCOC(=O)C(O)(Cn1cncn1)c1ccc(F)cc1, FC(F)(F)C(F)(F)I to produce O=C(C(O)(Cn1cncn1)c1ccc(F)cc1)C(F)(F)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.