1-[5-Deoxy-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-3-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

7-[5-Deoxy-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-phenyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine

4-Chloro-7-[5-O-[(1,1-dimethylethyl)dimethylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-phenyl-7H-pyrrolo[2,3-d]pyrimidine

4-Chloro-7-[5-deoxy-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-phenyl-7H-pyrrolo[2,3-d]pyrimidine

1-(2-Deoxy-D-erythro-pentofuranosyl)-5-iodo-2,4(1H,3H)-pyrimidinedione

3-[1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-α-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]-2-propenenitrile

3-[1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-α-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]-2-propenenitrile

3-[1-(2-Deoxy-α-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]-2-propenenitrile

1-[2-Deoxy-3,5-bis-O-(4-methylbenzoyl)-D-erythro-pentofuranosyl]-5-iodo-2,4(1H,3H)-pyrimidinedione

5′-Uridylic acid, anhydride with P,P′-(fluoromethylene)bis[phosphonic acid] (1:1)

Adenosine 5′-(trihydrogen diphosphate), P′→5′-ester with 7-oxo-3-β-D-ribofuranosyl-3-azaspiro[5.5]undeca-1,4-diene-1-carboxamide

Adenosine 5′-(trihydrogen diphosphate), P′→5′-ester with 3-(aminocarbonyl)-1,4-dihydro-α-(hydroxyimino)-1-β-D-ribofuranosyl-4-pyridinepropanoic acid

Uridine, 7-methyl-3′-O-methyl-, 5′-(hydrogen P-1H-imidazol-1-ylphosphonate) 2′,3′-bis(2,2,2-trifluoroacetate), anhydride with 2,2,2-trifluoroacetic acid

Adenosine, 5′-(hydrogen P-1H-imidazol-1-ylphosphonate) 2′,3′-bis(2,2,2-trifluoroacetate), anhydride with 2,2,2-trifluoroacetic acid

N′-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-5-(1-propyn-1-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-N,N-dimethylethanimidamide

N′-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-5-(1-propyn-1-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-N,N-dimethylethanimidamide

N′-[7-(2-Deoxy-β-D-erythro-pentofuranosyl)-5-(1-propyn-1-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-N,N-dimethylethanimidamide

1-β-D-Ribofuranosyl-1H-purin-6-amine

Adenosine, 5′-ester with thiotriphosphoric acid ([(HO)2P(S)O]2P(S)(OH)) O,O′,O′′-tris(2-cyanoethyl) ester

Thymidine, 3′-azido-3′-deoxy-, 5′-ester with thiotriphosphoric acid ([(HO)2P(S)O]2P(S)(OH)) O,O′,O′′-tris(2-cyanoethyl) ester