Guanosine, N-benzoyl-5′-C-(diethoxyphosphinyl)-2′,3′-O-(1-methylethylidene)-, (5′R)-

Adenosine, N-benzoyl-5′-C-(diethoxyphosphinyl)-2′,3′-O-(1-methylethylidene)-, (5′R)-

Cytidine, N-benzoyl-5′-C-(diethoxyphosphinyl)-2′,3′-O-(1-methylethylidene)-, (5′R)-

Uridine, 5′-C-(diethoxyphosphinyl)-3-(methoxymethyl)-2′,3′-O-(1-methylethylidene)-, (5′R)-

Guanosine, N-benzoyl-2′-deoxy-5′-C-(dimethoxyphosphinyl)-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-, (5′S)-

Guanosine, N-benzoyl-2′-deoxy-5′-C-(dimethoxyphosphinyl)-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-, (5′R)-

Adenosine, N-benzoyl-2′-deoxy-5′-C-(dimethoxyphosphinyl)-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-, (5′R)-

Cytidine, N-benzoyl-2′-deoxy-5′-C-(dimethoxyphosphinyl)-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-, (5′R)-

Thymidine, 3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5′-C-phosphono-, (5′R)-

Thymidine, 5′-C-(dimethoxyphosphinyl)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-, (5′S)-

Thymidine, 5′-C-(dimethoxyphosphinyl)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-, (5′R)-

Thymidine, 5′-C-(dimethoxyphosphinyl)-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-, (5′R)-

Adenosine, 2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyloxy[(2R)-2-methyl-2-[[[3-[(1Z)-phenylazo]phenyl]amino]carbonyl]-1,3-propanediyl]oxyphosphinico-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-

Adenosine, 2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyloxy[(2R)-2-methyl-2-[[[3-[(1E)-phenylazo]phenyl]amino]carbonyl]-1,3-propanediyl]oxyphosphinico-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-