Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-2-propenyluridylyl-(3′→5′)-N-[(2-propenyloxy)carbonyl]-, 2′,3′-bis(2-propenyl carbonate)

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-2-propenyl-N-[(2-propenyloxy)carbonyl]adenylyl-(3′→5′)-, 2′,3′-bis(2-propenyl carbonate)

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-2-propenyl-N-[(2-propenyloxy)carbonyl]adenylyl-(3′→5′)-N-[(2-propenyloxy)carbonyl]-, 2′,3′-bis(2-propenyl carbonate)

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-2-propenyl-N-[(2-propenyloxy)carbonyl]adenylyl-(3′→5′)-N-[(2-propenyloxy)carbonyl]-, 2′,3′-bis(2-propenyl carbonate)

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-chlorophenyl)thymidylyl-(3′→5′)-, 3′-(2-propenyl carbonate)

Cytidine, 2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

Cytidine, thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-

Guanosine, N-acetyl-N-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-, 2′,3′,5′-triacetate 6-(diphenylcarbamate)

2-(Acetylamino)-7-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-7H-purin-6-yl N,N-diphenylcarbamate

Guanosine, N-(2-methyl-1-oxopropyl)-, 2′,3′,5′-triacetate 6-(diphenylcarbamate)

N-[6,7-Dihydro-6-oxo-7-(2,3,5-tri-O-acetyl-β-D-xylofuranosyl)-1H-purin-2-yl]-2-methylpropanamide

N-[6,7-Dihydro-6-oxo-7-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-purin-2-yl]-2-methylpropanamide

2-Amino-7-α-D-arabinofuranosyl-1,7-dihydro-6H-purin-6-one

N-[6,7-Dihydro-6-oxo-7-(2,3,5-tri-O-acetyl-α-D-arabinofuranosyl)-1H-purin-2-yl]acetamide

N-[6,7-Dihydro-6-oxo-7-(2,3,5-tri-O-acetyl-β-D-xylofuranosyl)-1H-purin-2-yl]acetamide

5′-Deoxy-5′-fluoro-N-[(pentyloxy)carbonyl]cytidine

Cytidine, N-(butoxycarbonyl)-5′-deoxy-5′-fluoro-

Cytidine, 5′-deoxy-5′-fluoro-N-[(2-methoxyethoxy)carbonyl]-

Cytidine, N-[(cyclohexyloxy)carbonyl]-5′-deoxy-5′-fluoro-

Cytidine, N-[(3-cyclohexylpropoxy)carbonyl]-5′-deoxy-5′-fluoro-