2-Fluoro-4-acetamidoacetophenone is an intermediate in the synthesis of N-[4-(2-Bromoacetyl)-3-fluorophenyl]acetamide (B679330). N-[4-(2-Bromoacetyl)-3-fluorophenyl]acetamide is used in the preparation of 5-oxo-4,5-dihydroimidazole derivatives as modulators of NPY Y2 receptors.