Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(diphenylacetyl)-

6-[(Trimethylsilyl)oxy]-7-[2,3,5-tris-O-(trimethylsilyl)-β-D-ribofuranosyl]-7H-purine

Uridine, 2′-O-acetyl-3′-deoxy-3′-methyluridylyl-(3′→5′)-2′,3′-O-(1-methylethylidene)-

Uridine, 3′-deoxy-3′-(phosphonomethyl)-, 2′-acetate 5′-(γ-oxobenzenebutanoate)

Uridine, 2′-O-acetyl-3′-deoxy-5′-O-(1,4-dioxo-4-phenylbutyl)-3′-methyluridylyl-(3′→5′)-2′,3′-O-(1-methylethylidene)-

Uridine, 3′-deoxy-3′-methyluridylyl-(3′→5′)-3′-deoxy-3′-methyluridylyl-(3′→5′)-

Uridine, 3′-[[bis(1-methylethoxy)phosphinyl]methyl]-3′-deoxy-, 2′-acetate 5′-(γ-oxobenzenebutanoate)

N-[9-(2-Deoxy-3-O-2-propyn-1-yl-β-D-threo-pentofuranosyl)-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

1-Ethyl-1,3,6,9-tetrahydro-6-imino-3-methyl-9-β-D-ribofuranosyl-2H-purin-2-one

Uridine, 2′-deoxy-3-(2,3-dihydroxypropyl)-5-methyl-

N-[9-(2-Deoxy-3-O-2-propyn-1-yl-β-D-threo-pentofuranosyl)-9H-purin-6-yl]benzamide

3-(3,3,3-Trichloro-2-hydroxypropyl)thymidine

2-Bromo-6-S-[(4-nitrophenyl)methyl]-6-thioinosine

2-Iodo-6-S-[(4-nitrophenyl)methyl]-6-thioinosine

2-Chloro-6-S-[(4-nitrophenyl)methyl]-6-thioinosine

2-Fluoro-6-S-[(4-nitrophenyl)methyl]-6-thioinosine

2-Bromo-2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-S-[(4-nitrophenyl)methyl]-6-thioinosine

2′,3′,5′-Tris-O-[(1,1-dimethylethyl)dimethylsilyl]-2-iodo-6-S-[(4-nitrophenyl)methyl]-6-thioinosine

2-Chloro-2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-S-[(4-nitrophenyl)methyl]-6-thioinosine

N-Acetyl-P-(2-cyanoethyl)-2′-deoxycytidylyl-(3′→5′)-N-[N-acetyl-P-(2-cyanoethyl)-2′-deoxy-3′-cytidylyl]-3′-deoxy-3′-[5-[(1S)-1-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl]-1,2,4-oxadiazol-3-yl]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]adenosine