Cytidine, N-[4-[[3-(4-bromophenyl)-1-oxo-2-propenyl]amino]butyl]-2′-deoxy-5-methyl-

Cytidine, N-[2-[[3-(4-bromophenyl)-1-oxo-2-propenyl]amino]ethyl]-2′-deoxy-5-methyl-

Cytidine, N-[6-[[6-[(4-bromobenzoyl)amino]-1-oxohexyl]amino]hexyl]-2′-deoxy-5-methyl-

Cytidine, N-[2-[[6-[(4-bromobenzoyl)amino]-1-oxohexyl]amino]ethyl]-2′-deoxy-5-methyl-

Cytidine, N-[6-[(4-bromobenzoyl)amino]hexyl]-2′-deoxy-5-methyl-

Cytidine, N-[4-[(4-bromobenzoyl)amino]butyl]-2′-deoxy-5-methyl-

Cytidine, N-[2-[(4-bromobenzoyl)amino]ethyl]-2′-deoxy-5-methyl-

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

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

1-[6-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-6-fluoro-2-O-(2-methoxyethyl)-β-D-allofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-O-[6-[(1-oxohexadecyl)amino]hexyl]uridine

1-[(5E)-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-[(5E)-5,6-Dideoxy-6-(dimethoxyphosphinyl)-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-[6-[(1-oxohexadecyl)amino]hexyl]-β-D-ribo-hex-5-enofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

5′-Deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-5′-oxo-2′-O-[6-[(1-oxohexadecyl)amino]hexyl]uridine

3′-O-[(1,1-Dimethylethyl)dimethylsilyl]-5-methyl-2′-O-[6-[(1-oxohexadecyl)amino]hexyl]uridine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-2′-O-[6-[(1-oxohexadecyl)amino]hexyl]uridine

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

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