1,6-Dihydro-3-methyl-6-(4-methylphenyl)-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-7H-pyrazolo[4,3-d]pyrimidin-7-one

6-[(4-Chlorophenyl)methyl]-1,6-dihydro-3-methyl-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-7H-pyrazolo[4,3-d]pyrimidin-7-one

6-(4-Chlorophenyl)-1,6-dihydro-3-methyl-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-7H-pyrazolo[4,3-d]pyrimidin-7-one

4-[[4-[[1-(2-Deoxy-5-O-phosphono-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]thio]-1-oxobutyl]amino]-2,2,6,6-tetramethyl-1-piperidinyloxy

4-[[3-[[1-(2-Deoxy-5-O-phosphono-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]thio]-1-oxopropyl]amino]-2,2,6,6-tetramethyl-1-piperidinyloxy

4-[[[1-(2-Deoxy-5-O-phosphono-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]thio]methyl]-4-hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxy

2′-Deoxycytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenosine

5-Bromo-1-[2,3-O-(1-methylethylidene)-5-O-(triphenylmethyl)-β-D-ribofuranosyl]-1H-imidazole

5-Fluoro-1-[2,3-O-(1-methylethylidene)-5-O-(triphenylmethyl)-β-D-ribofuranosyl]-1H-imidazole

5-Iodo-1-[2,3-O-(1-methylethylidene)-5-O-(triphenylmethyl)-α-D-ribofuranosyl]-1H-imidazole

5-Bromo-1-[2,3-O-(1-methylethylidene)-5-O-(triphenylmethyl)-α-D-ribofuranosyl]-1H-imidazole

5-Fluoro-1-[2,3-O-(1-methylethylidene)-5-O-(triphenylmethyl)-α-D-ribofuranosyl]-1H-imidazole

1-β-D-Ribofuranosyl-1H-1,2,4-triazolo[4,3-b][1,2,4]triazole

Inosine, 2-methyl-6-S-phenyl-6-thio-

Inosine, 2-methyl-6-O-methyl-

Adenosine, N-benzoyl-2-methyl-

Adenosine, 2-methyl-N-octyl-

Guanosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-2′-O-[(1,1-dimethylethyl)dimethylsilyl]adenylyl-(3′→5′)-[P(S)]-N-benzoyl-3′-O-(N-benzoyl-2′,3′-di-O-benzoyl-5′-cytidylyl)-P-thioadenylyl-(2′→5′)-N-(2-methyl-1-oxopropyl)-6-O-[2-(4-nitrophenyl)ethyl]-, 2′,3′-dibenzoate

Cytidine, [P(S)]-2′,3′-di-O-benzoyl-N-(2-methyl-1-oxopropyl)-6-O-[2-(4-nitrophenyl)ethyl]-P-thioguanylyl-(5′→2′)-N-benzoyladenylyl-(3′→5′)-N-benzoyl-, 2′,3′-dibenzoate

Cytidine, [P(R)]-2′,3′-di-O-benzoyl-N-(2-methyl-1-oxopropyl)-6-O-[2-(4-nitrophenyl)ethyl]-P-thioguanylyl-(5′→2′)-N-benzoyladenylyl-(3′→5′)-N-benzoyl-, 2′,3′-dibenzoate