1-[5-O-[(1,1-Dimethylethyl)dimethylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-4-(5-phenyl-1,2,4-oxadiazol-3-yl)-1H-imidazol-5-amine

4-[5-(Chloromethyl)-1,2,4-oxadiazol-3-yl]-1-[5-O-[(1,1-dimethylethyl)dimethylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-1H-imidazol-5-amine

1-[5-O-[(1,1-Dimethylethyl)dimethylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-4-(5-methyl-1,2,4-oxadiazol-3-yl)-1H-imidazol-5-amine

5-Amino-1-[5-O-[(1,1-dimethylethyl)dimethylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-N-hydroxy-1H-imidazole-4-carboximidamide

2′-Deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyadenosine

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

β-D-Allofuranuronic acid, 5-(acetylamino)-1,5-dideoxy-1-[4-formyl-2,3-dihydro-2-oxo-1H-imidazol-1-yl]-2,3-O-(1-methylethylidene)-

5-Amino-1,5-dideoxy-1-[2,3-dihydro-4-(hydroxymethyl)-2-oxo-1H-imidazol-1-yl]-β-D-allofuranuronic acid

1-[2-(4-Nitrophenyl)ethyl] N-[9-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-(3-carboxy-1-oxopropyl)-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-6-[2-(4-nitrophenyl)ethoxy]-9H-purin-2-yl]carbamate

1-[2-(4-Nitrophenyl)ethyl] N-[9-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-(3-carboxy-1-oxopropyl)-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-9H-purin-6-yl]carbamate

1-[2-(4-Nitrophenyl)ethyl] N-[1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-(3-carboxy-1-oxopropyl)-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-(3-carboxy-1-oxopropyl)-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-(3-carboxy-1-oxopropyl)-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[2-(4-Nitrophenyl)ethyl] N-[9-[3-O-(3-carboxy-1-oxopropyl)-5-O-[(4-methoxyphenyl)diphenylmethyl]-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-6-[2-(4-nitrophenyl)ethoxy]-9H-purin-2-yl]carbamate

1-[2-(4-Nitrophenyl)ethyl] N-[9-[3-O-(3-carboxy-1-oxopropyl)-5-O-[(4-methoxyphenyl)diphenylmethyl]-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-9H-purin-6-yl]carbamate

1-[2-(4-Nitrophenyl)ethyl] N-[1-[3-O-(3-carboxy-1-oxopropyl)-5-O-[(4-methoxyphenyl)diphenylmethyl]-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate

1-[3-O-(3-Carboxy-1-oxopropyl)-5-O-[(4-methoxyphenyl)diphenylmethyl]-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[3-O-(3-Carboxy-1-oxopropyl)-5-O-[(4-methoxyphenyl)diphenylmethyl]-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

9-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-2-[[2-(4-nitrophenyl)ethyl]amino]-9H-purin-6-yl 2-(4-nitrophenyl)ethyl carbonate

2-(4-Nitrophenyl)ethyl N-[9-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-[[2-(4-nitrophenyl)ethoxy]carbonyl]-α-D-arabinofuranosyl]-9H-purin-6-yl]carbamate