β-Purine, 9-[3-deoxy-3-(10-undecenylamino)-β-D-ribofuranosyl]-6-dimethylamino-

β-Purine, 9-(3-amino-3-deoxy-β-D-ribofuranosyl)-6-dimethylamino-2-(methylthio)-

β-Purine, 6-amino-2,8-dichloro-9-ribofuranosyl-

β-Purine, 6-amino-2,8-dichloro-9-β-D-xylofuranosyl-

β-Purine, 6-amino-9-(5-S-ethyl-5-thioribofuranosyl)-

β-Purine, 9-[3-(α-aminophloretamido)-3-deoxy-β-D-ribofuranosyl]-6-dimethylamino-, benzyl carbonate

β-Purine, 9-(3-acetamido-3-deoxy-α-D-arabinofuranosyl)-6-dimethylamino-

β-Purine, 9-(3-acetamido-3-deoxy-β-D-arabinofuranosyl)-6-dimethylamino-, diacetate

β-Purine, 6-acetamido-9-(2-deoxy-5-O-trityl-β-D-ribofuranosyl)-, acetate

β-Purine, 9-[3-(6-amino-2-carboxyaminohexanamido)-3-deoxy-β-D-ribofuranosyl]-6-dimethylamino-, benzyl ester

β-Purine, 6-acetamido-2-acetyl-9-(3,5-O-benzylidene-β-D-ribofuranosyl)-

2-[2-(5,6-Dichloro-1-β-D-ribofuranosyl-1H-benzimidazol-2-yl)ethyl]-1H-isoindole-1,3(2H)-dione

2-[2-[5,6-Dichloro-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-benzimidazol-2-yl]ethyl]-1H-isoindole-1,3(2H)-dione

Guanosine, 2′,3′-dideoxy-3′-[(3-methyl-1-oxobutyl)amino]-N-(triphenylmethyl)-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-, 3′-(4-oxopentanoate)

Thymidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxycytidylyl-(3′→5′)-, 3′-(4-oxopentanoate)

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

Cytidine, N-benzoyl-3′-C-ethynyl-4′-C-[[(methylsulfonyl)oxy]methyl]-, 2′-acetate 5′-methanesulfonate

Uridine, 3′-C-ethynyl-4′-C-[[(methylsulfonyl)oxy]methyl]-, 2′-acetate 5′-methanesulfonate

4-Hydroxy-1-(2,3,5-tri-O-acetyl-3-C-ethynyl-β-D-ribofuranosyl)-2(1H)-pyridinone