Cytidine, N,N′′-[[1-(3-hydroxy-7,7-dimethyl-3-oxido-2,4-dioxa-7-azonia-3-phosphaoct-1-yl)-1,2-ethanediyl]bis[oxy(1,4-dioxo-4,1-butanediyl)]]bis[2′-deoxy-2′,2′-difluoro-, inner salt

Cytidine, N-(3-carboxy-1-oxopropyl)-2′-deoxy-2′,2′-difluoro-, 3′,5′-bis(1,1-dimethylethyl carbonate)

Cytidine, 2′-deoxy-2′,2′-difluoro-, 5′,5′′′-[4,4′-[1-(3-hydroxy-7,7-dimethyl-3-oxido-2,4-dioxa-7-azonia-3-phosphaoct-1-yl)-1,2-ethanediyl] dibutanedioate], inner salt

N-[9-[6-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-methyl-β-D-allofuranosyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

N-[9-[6-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-methyl-β-D-allofuranosyl]-9H-purin-6-yl]benzamide

N-[1-[6-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-methyl-β-D-allofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]acetamide

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

N-[9-[6-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-methyl-α-L-talofuranosyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

N-[9-[6-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-methyl-α-L-talofuranosyl]-9H-purin-6-yl]benzamide

N-[1-[6-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-methyl-α-L-talofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]acetamide

1-[6-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-methyl-α-L-talofuranosyl]-2,4(1H,3H)-pyrimidinedione

5′-Deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-O-methyl-N-(2-methyl-1-oxopropyl)-5′-oxoguanosine

N-Benzoyl-5′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-O-methyl-5′-oxoadenosine

N-Acetyl-5′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-O-methyl-5′-oxocytidine

1-[6-[Bis[(2,2-dimethyl-1-oxopropoxy)methoxy]phosphinyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-5,6-dideoxy-2-O-methyl-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[6-[Bis[(2,2-dimethyl-1-oxopropoxy)methoxy]phosphinyl]-5,6-dideoxy-2-O-methyl-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[6-[Bis[(2,2-dimethyl-1-oxopropoxy)methoxy]phosphinyl]-5,6-dideoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-methyl-β-D-ribo-hex-5-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

5′-Deoxy-N-(2-phenylethyl)adenosine