1-Deoxy-N-ethyl-1-[6-(tricyclo[3.3.1.13,7]dec-2-ylamino)-9H-purin-9-yl]-β-D-ribofuranuronamide

1-Deoxy-N-ethyl-1-[6-[(3-hydroxytricyclo[3.3.1.13,7]dec-1-yl)amino]-9H-purin-9-yl]-β-D-ribofuranuronamide

1-Deoxy-N-ethyl-1-[6-(tricyclo[3.3.1.13,7]dec-1-ylamino)-9H-purin-9-yl]-β-D-ribofuranuronamide

1-Deoxy-N-ethyl-2,3-O-(1-methylethylidene)-1-[6-[[(1R,2R)-2-(phenylmethoxy)cyclopentyl]amino]-9H-purin-9-yl]-β-D-ribofuranuronamide

1-Deoxy-N-ethyl-1-[6-[[(3-endo)-9-methyl-9-azabicyclo[3.3.1]non-3-yl]amino]-9H-purin-9-yl]-2,3-O-(1-methylethylidene)-β-D-ribofuranuronamide

1-Deoxy-N-ethyl-2,3-O-(1-methylethylidene)-1-[6-(tricyclo[3.3.1.13,7]dec-2-ylamino)-9H-purin-9-yl]-β-D-ribofuranuronamide

1-Deoxy-N-ethyl-1-[6-[(3-hydroxytricyclo[3.3.1.13,7]dec-1-yl)amino]-9H-purin-9-yl]-2,3-O-(1-methylethylidene)-β-D-ribofuranuronamide

1-Deoxy-N-ethyl-2,3-O-(1-methylethylidene)-1-[6-(tricyclo[3.3.1.13,7]dec-1-ylamino)-9H-purin-9-yl]-β-D-ribofuranuronamide

N-[(1R,5S)-9-Methyl-9-azabicyclo[3.3.1]non-3-yl]adenosine

Adenosine, N-[(1R,5S)-9-methyl-9-azabicyclo[3.3.1]non-3-yl]-, 2′,3′,5′-triacetate

Adenosine, N-[(1R,2R)-2-(phenylmethoxy)cyclopentyl]-, 5′-acetate

Adenosine, N-tricyclo[3.3.1.13,7]dec-1-yl-, 5′-acetate

5′-S-(2-Fluorophenyl)-2′,3′-O-(1-methylethylidene)-5′-thioinosine

3′-Guanylic acid, 2′-deoxy-N-(7,8,9,10-tetrahydro-7,8,9-trihydroxybenzo[a]pyren-10-yl)-, [7R-(7α,8β,9α,10α)]-

N′-[9-[[3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-2,3-dihydro-2-oxo-1H-pyrrolo[2,3-d]pyrimidin-6-yl]methyl]-9H-purin-6-yl]-N,N-dimethylmethanimidamide

N′-[9-[[3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-2,3-dihydro-2-oxo-1H-pyrrolo[2,3-d]pyrimidin-6-yl]methyl]-9H-purin-6-yl]-N,N-dimethylmethanimidamide

6-[(6-Amino-9H-purin-9-yl)methyl]-3-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-1,3-dihydro-2H-pyrrolo[2,3-d]pyrimidin-2-one

6-[(6-Amino-9H-purin-9-yl)methyl]-3-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]furo[2,3-d]pyrimidin-2(3H)-one