1,1-Dimethylethyl 3-[2-O-acetyl-3-deoxy-6-O-[(1,1-dimethylethyl)diphenylsilyl]-3-[(2-naphthalenylmethoxy)methyl]-5-O-(phenylmethyl)-β-D-allofuranosyl]-3,6-dihydro-5-methyl-2,6-dioxo-1(2H)-pyrimidinecarboxylate

1-[2-O-Acetyl-3-deoxy-6-O-[(1,1-dimethylethyl)diphenylsilyl]-3-[(2-naphthalenylmethoxy)methyl]-5-O-(phenylmethyl)-β-D-allofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

7-[(5R)-5-C-(3,4-Dichlorophenyl)-β-D-ribofuranosyl]-N-(2,2-dimethoxyethyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

7-[(5R)-5-C-(4-Chloro-3-fluorophenyl)-β-D-ribofuranosyl]-N-(2,2-dimethoxyethyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

7-[(5R)-5-C-(4-Chlorophenyl)-β-D-ribofuranosyl]-N-(3,3-diethoxypropyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

7-[(5R)-5-C-(4-Chlorophenyl)-β-D-ribofuranosyl]-3-ethoxy-2,7-dihydro-3H-imidazo[1,2-c]pyrrolo[3,2-e]pyrimidine

7-[(5R)-5-C-(4-Chlorophenyl)-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-2,7-dihydro-3-methoxy-3H-imidazo[1,2-c]pyrrolo[3,2-e]pyrimidine

3-[(5R)-5-C-(3,4-Dichlorophenyl)-β-D-ribofuranosyl]-7,8-dihydro-3H-imidazo[2,1-i]purin-7-ol

3-[(5R)-5-C-(4-Chloro-3-fluorophenyl)-β-D-ribofuranosyl]-7,8-dihydro-3H-imidazo[2,1-i]purin-7-ol

3-[(5R)-5-C-(3-Chloro-4-fluorophenyl)-β-D-ribofuranosyl]-7,8-dihydro-3H-imidazo[2,1-i]purin-7-ol

3-[(5R)-5-C-(3,4-Difluorophenyl)-β-D-ribofuranosyl]-7,8-dihydro-3H-imidazo[2,1-i]purin-7-ol