1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-4-(pyridin-3-yloxy)pyrimidin-2(1H)-one

1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-4-((6-methylpyridin-2-yl)oxy)pyrimidin-2(1H)-one

[3,4-bis(benzoyloxy)-5-chlorooxolan-2-yl]methyl benzoate

1-[2,2-dibutyl-6-(hydroxymethyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3,2]dioxastannol-4-yl]pyrimidine-2,4-dione

1-{(2R,3R,4R,5R)-3,4-Bis-(2-methoxy-ethoxymethoxy)-5-[(4-methoxy-phenyl)-diphenyl-methoxymethyl]-tetrahydro-furan-2-yl}-3-(2-methoxy-ethoxymethyl)-1H-pyrimidine-2,4-dione