Using FC(F)(F)c1cc[nH]n1, CC(=O)C(Br)C(=O)OCc1ccccc1 to produce CC(=O)C(C(=O)OCc1ccccc1)n1ccc(C(F)(F)F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.