Thymidine, (S)-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethyleneoxy[(phenylmethoxy)phosphinylidene]-(3′→5′)-5′-deoxy-

Thymidine, (R)-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethyleneoxy[(phenylmethoxy)phosphinylidene]-(3′→5′)-5′-deoxy-, 3′-acetate

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-methyl-α-D-arabinofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

2′-Deoxy-N-(4,5-dihydro-4-oxobenzo[f]-1,3-benzodioxolo[4,5,6-cd]indol-6-yl)adenosine

2′-Deoxy-N-(4,5-dihydro-7-methoxy-4-oxobenzo[f]-1,3-benzodioxolo[4,5,6-cd]indol-6-yl)adenosine

Guanosine, N-acetyl-6-thio-6-S-(2,3,5-tri-O-acetyl-α-D-ribofuranosyl)-, 2′,3′,5′-triacetate

5′-Amino-5′-deoxy-N-[(1,1-dimethylethoxy)carbonyl]-2′,3′-O-(1-methylethylidene)-N-(3-ethynylphenyl)adenosine

5′-Deoxy-5′-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-N-[(1,1-dimethylethoxy)carbonyl]-N-(3-ethynylphenyl)-2′,3′-O-(1-methylethylidene)adenosine

N-[(1,1-Dimethylethoxy)carbonyl]-N-(3-ethynylphenyl)-2′,3′-O-(1-methylethylidene)adenosine

5′-O-[(1,1-Dimethylethyl)dimethylsilyl]-N-[(1,1-dimethylethoxy)carbonyl]-N-(3-ethynylphenyl)-2′,3′-O-(1-methylethylidene)adenosine

5′-O-[(1,1-Dimethylethyl)dimethylsilyl]-N-(3-ethynylphenyl)-2′,3′-O-(1-methylethylidene)adenosine

N-(3-Ethynylphenyl)-2′,3′-O-(1-methylethylidene)adenosine

5′-Amino-5′-deoxy-2′,3′-O-(1-methylethylidene)-N-2-propyn-1-yladenosine

Thymidine, 3′-deoxy-3′-fluoro-5′-O-(2-methyl-4-oxo-4H-1,3-benzodioxin-2-yl)-

Thymidine, 3′-azido-3′-deoxy-5′-O-(2-methyl-4-oxo-4H-1,3-benzodioxin-2-yl)-

9,12-Epoxy-1H-diindolo[1,2,3-fg:3′,2′,1′-kl]pyrrolo[3,4-i][1,6]benzodiazocine-10-carboxylic acid, 2,3,9,10,11,12-hexahydro-9-methyl-10-(methylamino)-1-oxo-, methyl ester, [9S-(9α,10β,12α)]-