1 Q84 1,2-dideoxy-1-({2,6-dioxo-5-[(E)-(2-oxopropylidene)amino]-1,2,3,6-tetrahydropyrimidin-4-yl}amino)-D-erythro-pentitol 1.000 2 Q87 1-deoxy-1-({2,6-dioxo-5-[(E)-(2-oxopropylidene)amino]-1,2,3,6-tetrahydropyrimidin-4-yl}amino)-D-ribitol 0.957 3 2L4 1-deoxy-1-({2,6-dioxo-5-[(E)-(2-oxoethylidene)amino]-1,2,3,6-tetrahydropyrimidin-4-yl}amino)-D-ribitol 0.913 4 2LJ 1-deoxy-1-({2,6-dioxo-5-[(E)-propylideneamino]-1,2,3,6-tetrahydropyrimidin-4-yl}amino)-D-ribitol 0.913 5 Q7J 1,4-dideoxy-1-({2,6-dioxo-5-[(E)-(2-oxopropylidene)amino]-1,2,3,6-tetrahydropyrimidin-4-yl}amino)-D-erythro-pentitol 0.913 6 Q81 1,3-dideoxy-1-({2,6-dioxo-5-[(E)-(2-oxopropylidene)amino]-1,2,3,6-tetrahydropyrimidin-4-yl}amino)-D-erythro-pentitol 0.913 7 Y19 1-deoxy-1-{[(5s)-2,6-dioxo-5-(propanoylamino)-1,2,5,6-tetrahydropyrimidin-4-yl]amino}-D-ribitol 0.875 8 OYD 6-[(5-hydroxypentyl)amino]-5-[(E)-propylideneamino]pyrimidine-2,4(1h,3h)-dione 0.864 9 Q7P 6-[(4-hydroxybutyl)amino]-5-[(E)-(2-oxopropylidene)amino]pyrimidine-2,4(1h,3h)-dione 0.864 10 Q7S 6-[(3-hydroxypropyl)amino]-5-[(E)-(2-oxopropylidene)amino]pyrimidine-2,4(1h,3h)-dione 0.818 11 LMZ 5-nitroso-6-ribityl-amino-2,4(1h,3h)-pyrimidinedione 0.750 12 INI 5-nitro-6-ribityl-amino-2,4(1h,3h)-pyrimidinedione 0.720