2′-Deoxy-5-(1,8-nonadiyn-1-yl)uridine

5-(1,8-Nonadiyn-1-yl)uridine

5-(1,6-Heptadiyn-1-yl)uridine

1-(2-Deoxy-β-D-erythro-pentofuranosyl)-1,5-dihydro-8-methyl-4H-1,2,3-triazolo[4,5-c]quinolin-4-one

1-(2-Deoxy-β-D-erythro-pentofuranosyl)-1,5-dihydro-8-methyl-5-(phenylmethyl)-4H-1,2,3-triazolo[4,5-c]quinolin-4-one

1-[2-Deoxy-3,5-bis-O-(4-methylbenzoyl)-β-D-erythro-pentofuranosyl]-1,5-dihydro-8-methyl-5-(phenylmethyl)-4H-1,2,3-triazolo[4,5-c]quinolin-4-one

2-Chloro-N-[(1S)-1-(4-fluorophenyl)ethyl]-7-[5-O-(phosphonomethyl)-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine

6-Chloro-N-cyclopentyl-1-[2,3-O-(1-methylethylidene)-5-O-(phosphonomethyl)-β-D-ribofuranosyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine

5-Chloro-N-cyclopentyl-3-[2,3-O-(1-methylethylidene)-5-O-(phosphonomethyl)-β-D-ribofuranosyl]-3H-imidazo[4,5-b]pyridin-7-amine

5-Chloro-N-cyclopentyl-3-[2-deoxy-5-O-[(diethoxyphosphinyl)methyl]-2-fluoro-3-O-(tetrahydro-2H-pyran-2-yl)-β-D-arabinofuranosyl]-3H-imidazo[4,5-b]pyridin-7-amine

5-Chloro-N-cyclopentyl-3-[2-deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-3-O-(tetrahydro-2H-pyran-2-yl)-β-D-arabinofuranosyl]-3H-imidazo[4,5-b]pyridin-7-amine

2-Chloro-N-cyclopentyl-9-[2-deoxy-5-O-[(diethoxyphosphinyl)methyl]-2-fluoro-3-O-(tetrahydro-2H-pyran-2-yl)-β-D-arabinofuranosyl]-9H-purin-6-amine

2-Chloro-N-cyclopentyl-9-[2-deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-3-O-(tetrahydro-2H-pyran-2-yl)-β-D-arabinofuranosyl]-9H-purin-6-amine

2-Chloro-N-cyclopentyl-9-[2-deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-β-D-arabinofuranosyl]-9H-purin-6-amine

5-Chloro-N-cyclopentyl-3-[2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-3H-imidazo[4,5-b]pyridin-7-amine

5-Chloro-N-cyclopentyl-3-[2-deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-β-D-arabinofuranosyl]-3H-imidazo[4,5-b]pyridin-7-amine