5-[(1E)-2-Bromoethenyl]-2',5'-dideoxyuridine

5-[(1E)-2-Bromoethenyl]-1-(5-chloro-2,5-dideoxy-2,2-difluoro-α-D-erythro-pentofuranosyl)-2,4(1H,3H)-pyrimidinedione

5-[(1E)-2-Bromoethenyl]-1-(2-deoxy-2,2-difluoro-α-D-erythro-pentofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-[2-Deoxy-2-fluoro-5-O-(triphenylmethyl)-β-D-arabinofuranosyl]-5-ethyl-2,4(1H,3H)-pyrimidinedione

5-[(1E)-2-Bromoethenyl]-1-(2,5-dideoxy-5-iodo-β-D-threo-pentofuranosyl)-2,4(1H,3H)-pyrimidinedione

5-[(1E)-2-Bromoethenyl]-1-[2-deoxy-5-O-(methylsulfonyl)-β-D-threo-pentofuranosyl]-2,4(1H,3H)-pyrimidinedione

5-[(1E)-2-Bromoethenyl]-1-[(2R,4S,5R)-4-bromotetrahydro-5-methyl-2-furanyl]-2,4(1H,3H)-pyrimidinedione

5-[(1E)-2-Bromoethenyl]-1-[(2R,4S,5R)-4-chlorotetrahydro-5-methyl-2-furanyl]-2,4(1H,3H)-pyrimidinedione

5-(3-Azido-1-propyn-1-yl)-2'-deoxyuridine

Furo[2',3':4,5]thiazolo[3,2-a]benzimidazole-2-methanol, 2,3,3a,10a-tetrahydro-3-hydroxy-, [2R-(2α,3β,3aβ,10aβ)]-

2-Chloro-1-[2-O-[(4-methylphenyl)sulfonyl]-β-D-ribofuranosyl]-1H-benzimidazole

1-[(2R,3R,3aS,9bR)-3-(Acetyloxy)-3,3a,5,9b-tetrahydro-2H-furo[3,2-c][2]benzopyran-2-yl]-2,4(1H,3H)-pyrimidinedione

1-[2,3-Di-O-acetyl-5-deoxy-5-[[(2-nitrophenyl)sulfonyl](phenylmethyl)amino]-α-D-ribofuranosyl]-2,4(1H,3H)-pyrimidinedione

5-[3-[(9-Anthracenylcarbonyl)amino]-1-propyn-1-yl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine

5-[3-[(9-Anthracenylcarbonyl)amino]-1-propyn-1-yl]-2'-deoxyuridine

(1R,3R,4R,7S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-3-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-5-(3-perylenylmethyl)-2-oxa-5-azabicyclo[2.2.1]hept-7-yl 2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite

N-[9-[(1R,5R,7R,8S)-5-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-8-hydroxy-2-(2,2,2-trifluoroacetyl)-6-oxa-2-azabicyclo[3.2.1]oct-7-yl]-9H-purin-6-yl]benzamide

1-[(2R,3R,3aR,9bR)-3,3a,5,9b-Tetrahydro-3-hydroxy-2H-furo[3,2-c][2]benzopyran-2-yl]-2,4(1H,3H)-pyrimidinedione

N-[9-[(1R,5R,7R,8S)-8-Hydroxy-5-(hydroxymethyl)-2-(2,2,2-trifluoroacetyl)-6-oxa-2-azabicyclo[3.2.1]oct-7-yl]-9H-purin-6-yl]benzamide

N-[9-[(1R,5R,7R,8S)-8-(Phenylmethoxy)-5-[(phenylmethoxy)methyl]-6-oxa-2-azabicyclo[3.2.1]oct-7-yl]-9H-purin-6-yl]benzamide