1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2,6-dideoxy-2-fluoro-β-D-allofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2,6-dideoxy-2-fluoro-α-L-talofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2,6-dideoxy-2-fluoro-α-L-talofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2,6-dideoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-α-L-talofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-α-D-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[3-O-[[2-Chloro-4-(triphenylmethyl)phenoxy](2-cyanoethoxy)phosphinyl]-2-deoxy-α-D-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[2-chloro-4-(triphenylmethyl)phenoxy]hydroxyphosphinyl]-2-deoxy-α-D-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[2-chloro-4-(triphenylmethyl)phenoxy](2-cyanoethoxy)phosphinyl]-2-deoxy-α-D-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

2'-[(Aminocarbonyl)amino]-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

2'-[(Aminocarbonyl)amino]-2'-deoxyuridine

1-[2-O-Benzoyl-3,5,6-trideoxy-6-(diethoxyphosphinyl)-β-D-erythro-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-(5,6-Dideoxy-6-phosphono-β-D-ribo-hex-5-enofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-[5,6-Dideoxy-6-(diethoxyphosphinyl)-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[5,6-Dideoxy-6-(diethoxyphosphinyl)-2,3-O-(1-methylethylidene)-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

2'-[(Aminocarbonyl)amino]-2'-deoxyuridine 5'-(trihydrogen diphosphate)

2-Amino-1,9-dihydro-9-(3,5,6-trideoxy-3-fluoro-6-phosphono-β-D-ribo-hex-5-enofuranosyl)-6H-purin-6-one

1-[3,5,6-Trideoxy-6-phosphono-β-D-erythro-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[5,6-Dideoxy-6-(diethoxyphosphinyl)-4-C-ethynyl-2,3-O-(1-methylethylidene)-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[2,5,6-Trideoxy-2-fluoro-6-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[3-O-Benzoyl-2,5,6-trideoxy-6-(dimethoxyphosphinyl)-2-fluoro-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione