1 ROU 5-{2-[3,5-bis(trifluoromethyl)phenyl]ethyl}-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid 1.000 2 WRO 2,6-dioxo-5-{2-[3-(trifluoromethyl)phenyl]ethyl}-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid 0.852 3 KRO 5-[2-(4-fluoro-3-methylphenyl)ethyl]-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid 0.714 4 MRO 2,6-dioxo-5-(2-phenylethyl)-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid 0.704