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

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

1-[6,6-Dibromo-5,6-dideoxy-2-O-methyl-3-O-(2-naphthalenylmethyl)-β-D-ribo-hex-5-enofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[6,6-Dibromo-5,6-dideoxy-3-O-(2-naphthalenylmethyl)-β-D-ribo-hex-5-enofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

3′-O-[(1,1-Dimethylethyl)diphenylsilyl]-2′-O-(2-methoxyethyl)-5-methyl-5′-O-(phosphonomethyl)uridine

3′-O-[(1,1-Dimethylethyl)diphenylsilyl]-2′-O-(2-methoxyethyl)-5-methyl-3-[(phenylmethoxy)methyl]-5′-O-(phosphonomethyl)uridine

5′-O-[(Diethoxyphosphinyl)methyl]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-O-(2-methoxyethyl)-5-methyl-3-[(phenylmethoxy)methyl]uridine

5′-O-[(Diethoxyphosphinyl)methyl]-2′-O-(2-methoxyethyl)-5-methyl-3-[(phenylmethoxy)methyl]uridine

5′-O-[(Diethoxyphosphinyl)methyl]-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-O-(2-methoxyethyl)-5-methyl-3-[(phenylmethoxy)methyl]uridine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-O-(2-methoxyethyl)-5-methyl-3-[(phenylmethoxy)methyl]uridine

1-[3-O-[[Bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-5,6-dideoxy-6-(diethoxyphosphinyl)-6-fluoro-2-O-(2-methoxyethyl)-β-D-ribo-hexofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[5,6-Dideoxy-6-(diethoxyphosphinyl)-6-fluoro-2-O-(2-methoxyethyl)-β-D-ribo-hexofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

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

1-[2-O-Acetyl-5,6-dideoxy-6-(diethoxyphosphinyl)-6,6-difluoro-3-O-(2-naphthalenylmethyl)-β-D-ribo-hexofuranosyl]-5-methyl-3-[(phenylmethoxy)methyl]-2,4(1H,3H)-pyrimidinedione

1-[2-O-Acetyl-5,6-dideoxy-6-(diethoxyphosphinyl)-3-O-(2-naphthalenylmethyl)-β-D-ribo-hexofuranosyl]-5-methyl-3-[(phenylmethoxy)methyl]-2,4(1H,3H)-pyrimidinedione

1-[6-Amino-6-deoxy-2-O-(2-methoxyethyl)-3-O-(2-naphthalenylmethyl)-5-O-(phenylmethyl)-β-D-allofuranosyl]-5-methyl-3-[(phenylmethoxy)methyl]-2,4(1H,3H)-pyrimidinedione

1-[6-Azido-6-deoxy-2-O-(2-methoxyethyl)-3-O-(2-naphthalenylmethyl)-5-O-(phenylmethyl)-β-D-allofuranosyl]-5-methyl-3-[(phenylmethoxy)methyl]-2,4(1H,3H)-pyrimidinedione

1-[2-O-(2-Methoxyethyl)-6-O-(methylsulfonyl)-3-O-(2-naphthalenylmethyl)-5-O-(phenylmethyl)-β-D-allofuranosyl]-5-methyl-3-[(phenylmethoxy)methyl]-2,4(1H,3H)-pyrimidinedione

1-[(5E)-3-O-[[Bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-5,6-dideoxy-6-(dimethoxyphosphinyl)-2-O-[6-[(1-oxohexadecyl)amino]hexyl]-β-D-ribo-hex-5-enofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5Z)-3-O-[[Bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-5,6-dideoxy-6-(dimethoxyphosphinyl)-2-O-methyl-β-D-ribo-hex-5-enofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione