Using FC(F)(F)I, CC#CCn1c(N2CCN(C(=O)OC(C)(C)C)CC2)nc(C=O)c1C(=O)OCC to produce CC#CCn1c(N2CCN(C(=O)OC(C)(C)C)CC2)nc(C(O)C(F)(F)F)c1C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.