3-Bromo-1,5-dihydro-1-β-L-ribofuranosyl-4H-pyrazolo[3,4-d]pyrimidin-4-one

3-Bromo-1,5-dihydro-1-(2,3,5-tri-O-benzoyl-β-L-ribofuranosyl)-4H-pyrazolo[3,4-d]pyrimidin-4-one

1,5-Dihydro-1-β-L-ribofuranosyl-4H-pyrazolo[3,4-d]pyrimidin-4-one

1,5-Dihydro-1-(2,3,5-tri-O-benzoyl-β-L-ribofuranosyl)-4H-pyrazolo[3,4-d]pyrimidin-4-one

2-Amino-9-β-L-ribofuranosyl-9H-purine-6-sulfonamide

2-Amino-9-β-L-ribofuranosyl-9H-purine-6-sulfinamide

2-Amino-9-β-L-ribofuranosyl-9H-purine-6-sulfenamide

N-[6,9-Dihydro-6-thioxo-9-(2,3,5-tri-O-benzoyl-β-L-ribofuranosyl)-1H-purin-2-yl]acetamide

N-(4,5-Dihydro-4-oxo-1-β-L-ribofuranosyl-1H-imidazo[4,5-c]pyridin-6-yl)acetamide

N-[4,5-Dihydro-4-oxo-1-(2,3,5-tri-O-benzoyl-β-L-ribofuranosyl)-1H-imidazo[4,5-c]pyridin-6-yl]acetamide

2-Amino-7,9-dihydro-7-propyl-9-β-L-ribofuranosyl-1H-purine-6,8-dione

2-Amino-7,9-dihydro-7-(2-propen-1-yl)-9-β-L-ribofuranosyl-1H-purine-6,8-dione

2-Amino-1,9-dihydro-8-(2-propen-1-yloxy)-9-β-L-ribofuranosyl-6H-purin-6-one

2-Amino-8-bromo-1,9-dihydro-9-β-L-ribofuranosyl-6H-purin-6-one

N-[6,9-Dihydro-6-oxo-9-(2,3,5-tri-O-benzoyl-β-L-ribofuranosyl)-1H-purin-2-yl]acetamide

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-6-O-[4-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)butyl]-N-(2-methyl-1-oxopropyl)-

2′-Deoxy-P-thioguanylyl-(3′→5′)-thymidine

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[S-(2-pyridinylmethyl) phosphonothioate]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-6-O-[4-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)butyl]-N-(2-methyl-1-oxopropyl)-, 3′-[S-(2-pyridinylmethyl) hydrogen phosphorothioate]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-6-O-[4-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)butyl]-N-(2-methyl-1-oxopropyl)-, 3′-[S-(2-pyridinylmethyl) phosphonothioate]