Using CCOC(=O)C(F)(F)Br, O=[N+]([O-])c1cccc(I)c1 to produce CCOC(=O)C(F)(F)c1cccc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.