Using O=C(O)C(F)F, NC[C@H]1CN(c2ccc(I)c(F)c2)C(=O)O1 to produce O=C(NC[C@H]1CN(c2ccc(I)c(F)c2)C(=O)O1)C(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.