1 RAV 5-ethyl-5-[(2s)-pentan-2-yl]pyrimidine-2,4,6(1h,3h,5h)-trione 1.000 2 EDP 5-ethyl-5-[(2r)-pentan-2-yl]-2-thioxodihydropyrimidine-4,6(1h,5h)-dione 0.882 3 6JW 5-(2-bromoethyl)-5-ethyl-1,3-diazinane-2,4,6-trione 0.765 4 VOK 5,5-diethyl-1-methyl-1,3-diazinane-2,4,6-trione 0.765