5-dioxoimidazolidin-1-yl}-3-methyl-pentanoic acid hydroxyamide 2-{2,5-Dioxo-4-[2-(4-phenylacetyl-phenyl)-ethyl]-imidazolidin-1-yl}-3-methyl-pentanoic acid hydroxyamide 2-{4-[2-(2-Fluoro-4-phenylacetyl-phenyl)-ethyl]-2,5-dioxoimidazolidin-1-yl}-3-methyl-pentanoic acid hydroxyamide...