Benzimidazole, 1-(2,3-O-isopropylidene-D-ribofuranosyl)-5,6-dimethyl-

2(1H)-Pyrimidinone, 1-[3,5-bis-O-(4-chlorobenzoyl)-2-deoxy-β-D-erythro-pentofuranosyl]-5-(phenylethynyl)-

1-[3,5-Bis-O-(4-chlorobenzoyl)-2-deoxy-α-D-erythro-pentofuranosyl]-5-ethynyl-2(1H)-pyrimidinone

1-(2-Deoxy-α-D-erythro-pentofuranosyl)-5-ethynyl-2(1H)-pyrimidinone

2(1H)-Pyrimidinone, 1-[3,5-bis-O-(4-chlorobenzoyl)-2-deoxy-β-D-erythro-pentofuranosyl]-5-[(trimethylsilyl)ethynyl]-

1-[(5aS,6R,7R,8aR)-6-(Acetyloxy)-5a,6,8a,9-tetrahydro-4H,7H-furo[2,3-f][1,2,3]triazolo[5,1-c][1,4]oxazepin-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5aS,6R,7R,8aR)-6-(Acetyloxy)-5a,6,8a,9-tetrahydro-4H,7H-furo[2,3-f][1,2,3]triazolo[5,1-c][1,4]oxazepin-7-yl]-2,4(1H,3H)-pyrimidinedione

2(1H)-Pyrimidinone, 1-[3,5-bis-O-(4-chlorobenzoyl)-2-deoxy-α-D-erythro-pentofuranosyl]-5-[(trimethylsilyl)ethynyl]-

1-[(5aR,7R,8R,8aS)-8-(Acetyloxy)-5a,7,8,8a-tetrahydro-5H,10H-furo[2,3-f]tetrazolo[5,1-c][1,4]oxazepin-7-yl]-2,4(1H,3H)-pyrimidinedione

6-Ethynyl-9-[2,3,5-tris-O-(4-methylbenzoyl)-β-D-ribofuranosyl]-9H-purine

1-(2,3,5-Tri-O-acetyl-β-L-ribofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-[(5aR,7R,8R,8aS)-8-(Acetyloxy)-5a,7,8,8a-tetrahydro-5H,10H-furo[2,3-f]tetrazolo[5,1-c][1,4]oxazepin-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[(1R,3R,4S,5R)-4-(phenylmethoxy)-3-[(phenylmethoxy)methyl]-6-(1-pyrenylcarbonyl)-2-oxa-6-azabicyclo[3.2.0]hept-1-yl]-2,4(1H,3H)-pyrimidinedione

1-[(1R,5R,7R,8S)-8-Hydroxy-5-(hydroxymethyl)-2-(1-pyrenylcarbonyl)-6-oxa-2-azabicyclo[3.2.1]oct-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(1R,3R,4S,5R)-4-Hydroxy-3-(hydroxymethyl)-6-(1-pyrenylcarbonyl)-2-oxa-6-azabicyclo[3.2.0]hept-1-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2-Deoxy-5-O-(1-oxoheptadecyl)-β-L-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(1R,5R,7R,8S)-5-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-8-hydroxy-2-(1-pyrenylcarbonyl)-6-oxa-2-azabicyclo[3.2.1]oct-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[(1R,5R,7R,8S)-8-(phenylmethoxy)-5-[(phenylmethoxy)methyl]-2-(1-pyrenylcarbonyl)-6-oxa-2-azabicyclo[3.2.1]oct-7-yl]-2,4(1H,3H)-pyrimidinedione

(1R,3R,4S,5R)-3-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-1-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-6-(1-pyrenylcarbonyl)-2-oxa-6-azabicyclo[3.2.0]hept-4-yl 2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite

1-[(1R,3R,4S,5R)-3-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-4-hydroxy-6-(1-pyrenylcarbonyl)-2-oxa-6-azabicyclo[3.2.0]hept-1-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione