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

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

1-[5,6-Dideoxy-6-(dimethoxyphosphinyl)-3-O-[(1,1-dimethylethyl)diphenylsilyl]-2-O-(2-methoxyethyl)-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

2,4(1H,3H)-Pyrimidinedione, 1-[2,6-anhydro-5-deoxy-4-C-[2-(dimethoxyphosphinyl)ethenyl]-3-O-[(1,1-dimethylethyl)dimethylsilyl]-α-L-lyxo-hexofuranosyl]-

2,4(1H,3H)-Pyrimidinedione, 1-[2,6-anhydro-5-deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-4-C-(hydroxymethyl)-α-L-lyxo-hexofuranosyl]-

1-[2-O-[3-(Acetylamino)propyl]-5,6-dideoxy-6-(dimethoxyphosphinyl)-3-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

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

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

1-[3-O-Benzoyl-5,6-dideoxy-6-(dimethoxyphosphinyl)-2-O-[3-[[(1,1-dimethylethyl)dimethylsilyl]amino]propyl]-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

Uridine, 2′-O-[3-[[(1,1-dimethylethyl)dimethylsilyl]amino]propyl]-, 3′-benzoate

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-O-[3-[[(1,1-dimethylethyl)dimethylsilyl]amino]propyl]uridine