Adenosine, N-benzoyl-1-methyl-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Adenosine, N-benzoyl-N-methyl-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Adenosine, N-methyl-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 5′-[2-[[5-(dimethylamino)-1-naphthalenyl]sulfonyl]ethyl carbonate]

Adenosine, 2′-O-(1-methoxy-1-methylethyl)-N-methyl-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Adenosine, N-methyl-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Adenosine, N-methyl-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Adenosine, 2′-O-(1-methoxy-1-methylethyl)-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Guanosine, N-methyl-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-6-O-[2-(4-nitrophenyl)ethyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-

Cytidine, N-methyl-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Cytidine, 3-methyl-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

3-[2-Deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino]methoxyphosphino]-2-O-2-propen-1-yl-β-D-ribofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino]methoxyphosphino]-2-O-methyl-β-D-ribofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino]methoxyphosphino]-β-D-ribofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino]methoxyphosphino]-2-deoxy-2-fluoro-β-D-ribofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino]methoxyphosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-2-propen-1-yl-β-D-ribofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-methyl-β-D-ribofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-β-D-ribofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-2-fluoro-β-D-ribofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one