Adenosine, N-benzoyl-2′,3′-O-[(1S)-2-(benzoyloxy)-1-(diethoxyphosphinyl)ethylidene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Adenosine, N-benzoyl-2′,3′-O-[(1S)-1-(diethoxyphosphinyl)-2-[(trifluoroacetyl)amino]ethylidene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Adenosine, N-benzoyl-2′,3′-O-[(S)-(diethoxyphosphinyl)methylene]-, 5′-benzoate

Adenosine, N-benzoyl-2′,3′-O-[(R)-(diethoxyphosphinyl)methylene]-, 5′-benzoate

Uridine, 2′,3′-O-[(1S)-1-(diethoxyphosphinyl)ethylidene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-3-[(phenylmethoxy)methyl]-

Uridine, 2′,3′-O-[(1R)-1-(diethoxyphosphinyl)ethylidene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-3-[(phenylmethoxy)methyl]-

Cytidine, N-benzoyl-2′,3′-O-[(S)-(diethoxyphosphinyl)methylene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Cytidine, N-benzoyl-2′,3′-O-[(R)-(diethoxyphosphinyl)methylene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-

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

Uridine, 5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-3-[(phenylmethoxy)methyl]-, 3′-(chloroacetate)

(2R,3R,3aS,9aR)-2-[[[(1,1-Dimethylethyl)diphenylsilyl]oxy]methyl]-2,3,3a,9a-tetrahydro-7-methyl-6-oxo-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl 2-(ethoxyhydroxyphosphinyl)acetate

Uridine, 2′,3′-O-[(1S)-2-bromo-1-(diethoxyphosphinyl)ethylidene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-3-[(phenylmethoxy)methyl]-

Uridine, 2′,3′-O-[(1R)-2-bromo-1-(diethoxyphosphinyl)ethylidene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-3-[(phenylmethoxy)methyl]-

Uridine, 2′,3′-O-[(1S)-2-bromo-1-(diethoxyphosphinyl)ethylidene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-

Adenosine, N-benzoyl-2′,3′-O-[3-(benzoyloxy)-1-methoxypropylidene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Adenosine, N-benzoyl-2′,3′-O-[2-(benzoyloxy)-1-methoxyethylidene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Adenosine, N-benzoyl-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′,3′-O-[1-ethoxy-2-[[(phenylmethoxy)carbonyl]amino]ethylidene]-

Adenosine, N-benzoyl-2′,3′-O-[(S)-(diethoxyphosphinyl)methylene]-

Adenosine, N-benzoyl-2′,3′-O-[(R)-(diethoxyphosphinyl)methylene]-

Uridine, 2′,3′-O-[(S)-(diethoxyphosphinyl)phenylmethylene]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-