Uridine, 4-O-[2-(4-nitrophenyl)ethyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 5′-(2-cyano-1-phenylethyl carbonate) 3′-[2-(4-nitrophenyl)ethyl bis(1-methylethyl)phosphoramidite]

Uridine, 4-O-[2-(4-nitrophenyl)ethyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 3′,5′-bis(2-cyano-1-phenylethyl carbonate)

Uridine, 4-O-[2-(4-nitrophenyl)ethyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 3′-(2-cyano-1-phenylethyl carbonate)

Uridine, 4-O-[2-(4-nitrophenyl)ethyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 5′-(2-cyano-1-phenylethyl carbonate)

Cytidine, N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 3′-(2-cyano-1-phenylethyl carbonate)

Uridine, 4-O-[2-(4-nitrophenyl)ethyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-

Guanosine, 2′-deoxy-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-6-O-[2-(4-nitrophenyl)ethyl]-, 3′,5′-bis(2-cyano-1-phenylethyl carbonate)

Guanosine, 2′-deoxy-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-6-O-[2-(4-nitrophenyl)ethyl]-, 5′-(2-cyano-1-phenylethyl carbonate)

Cytidine, 2′-deoxy-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-, 3′,5′-bis(2-cyano-1-phenylethyl carbonate)

Cytidine, 2′-deoxy-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-, 3′-(2-cyano-1-phenylethyl carbonate)

Cytidine, 2′-deoxy-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-, 5′-(2-cyano-1-phenylethyl carbonate)

Adenosine, 2′-deoxy-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-, 3′,5′-bis(2-cyano-1-phenylethyl carbonate)

Adenosine, 2′-deoxy-N-[[2-(4-nitrophenyl)ethoxy]carbonyl]-, 5′-(2-cyano-1-phenylethyl carbonate)

2′-Deoxyadenylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyadenosine

(3S,8E,11aR,12R,14R,14aR)-12-(6-Amino-9H-purin-9-yl)-14-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-3,4,7,10,11a,12,14,14a-octahydro-3-methyl-2H-furo[3,4-b][1,4,7]dioxaazacyclotridecine-2,5(6H)-dione

(3S,8Z,11aR,12R,14R,14aR)-12-(6-Amino-9H-purin-9-yl)-14-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-3,4,7,10,11a,12,14,14a-octahydro-3-methyl-2H-furo[3,4-b][1,4,7]dioxaazacyclotridecine-2,5(6H)-dione

(3S,8E,11aR,12R,14R,14aR)-12-(6-Amino-9H-purin-9-yl)-3,4,7,10,11a,12,14,14a-octahydro-14-(hydroxymethyl)-3-methyl-2H-furo[3,4-b][1,4,7]dioxaazacyclotridecine-2,5(6H)-dione

N-[9-[(3S,8E,11aR,12R,14R,14aR)-14-[[[(1,1-Dimethylethyl)dimethylsilyl]oxy]methyl]-3,4,5,6,7,10,11a,12,14,14a-decahydro-3-methyl-2,5-dioxo-2H-furo[3,4-b][1,4,7]dioxaazacyclotridecin-12-yl]-9H-purin-6-yl]benzamide

(3S,8Z,11aR,12R,14R,14aR)-12-(6-Amino-9H-purin-9-yl)-3,4,7,10,11a,12,14,14a-octahydro-14-(hydroxymethyl)-3-methyl-2H-furo[3,4-b][1,4,7]dioxaazacyclotridecine-2,5(6H)-dione

N-[9-[(3S,8Z,11aR,12R,14R,14aR)-14-[[[(1,1-Dimethylethyl)dimethylsilyl]oxy]methyl]-3,4,5,6,7,10,11a,12,14,14a-decahydro-3-methyl-2,5-dioxo-2H-furo[3,4-b][1,4,7]dioxaazacyclotridecin-12-yl]-9H-purin-6-yl]benzamide