Cytidine, N-acetyl-5′-deoxy-5′-(dibutylphosphinyl)-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-[[(4-methoxyphenyl)methylene]amino]-, (5′S)-

Cytidine, N-acetyl-5′-deoxy-5′-(diethoxyphosphinyl)-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-[[(4-methoxyphenyl)methylene]amino]-, (5′S)-

Cytidine, 5′-deoxy-5′-(diethoxyphosphinyl)-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-[[(4-methoxyphenyl)methylene]amino]-, (5′S)-

Cytidine, 5′-deoxy-5′-(diethoxyphosphinyl)-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-[[(4-methoxyphenyl)methyl]amino]-, (5′S)-

Cytidine, N-acetyl-5′-deoxy-5′-(diethoxyphosphinyl)-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-[[(4-methoxyphenyl)methyl]amino]-, (5′S)-

9-[(5S)-2-[5-O-[(1,1-Dimethylethyl)diphenylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-isoxazolidinyl]-9H-purin-6-amine

9-[(5R)-2-[5-O-[(1,1-Dimethylethyl)diphenylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-isoxazolidinyl]-9H-purin-6-amine

Cytidine, N-acetyl-5′-deoxy-5′-(dibutylphosphinyl)-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-[[(4-methoxyphenyl)methyl]amino]-, (5′S)-

4-Amino-1-[(5S)-2-[5-O-[(1,1-dimethylethyl)diphenylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-isoxazolidinyl]-5-fluoro-2(1H)-pyrimidinone

4-Amino-1-[(5R)-2-[5-O-[(1,1-dimethylethyl)diphenylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-isoxazolidinyl]-5-fluoro-2(1H)-pyrimidinone

Guanosine, 2′-deoxy-5′-O-phosphonoguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Adenosine, 5′-O-[(2-cyanoethoxy)hydroxyphosphinyl]-2′-deoxy-N-(4-methoxybenzoyl)cytidylyl-(3′→5′)-thymidylyl-(3′→5′)-N-benzoyl-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-N-benzoyl-2′-deoxy-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-ethyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

7H-1,2,3-Triazolo[4,5-d]pyrimidin-7-one, 3-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-ribofuranosyl]-3,4-dihydro-

N′-[3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-ribofuranosyl]-3H-1,2,3-triazolo[4,5-d]pyrimidin-7-yl]-N,N-dimethylethanimidamide

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-ethyl-

7H-1,2,3-Triazolo[4,5-d]pyrimidin-7-one, 3-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-ribofuranosyl]-3,4-dihydro-

N′-[3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-ribofuranosyl]-3H-1,2,3-triazolo[4,5-d]pyrimidin-7-yl]-N,N-dimethylethanimidamide

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-ethyl-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-5-[[[6-[(trifluoroacetyl)amino]hexyl]amino]carbonyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]