1-[2-O-Acetyl-3-deoxy-3-fluoro-5-O-(phenylmethyl)-β-D-ribofuranosyl]-1,5-dihydro-4H-imidazo[4,5-c]pyridin-4-one

7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-deoxy-3-fluoro-β-D-ribofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

7-(3-Deoxy-3-fluoro-β-D-ribofuranosyl)-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

3-(3-Deoxy-3-fluoro-β-D-xylofuranosyl)-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-deoxy-3-fluoro-β-D-ribofuranosyl]-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-deoxy-3-fluoro-β-D-xylofuranosyl]-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-deoxy-2-O-[(1,1-dimethylethyl)dimethylsilyl]-3-fluoro-β-D-ribofuranosyl]-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-deoxy-2-O-[(1,1-dimethylethyl)dimethylsilyl]-3-fluoro-β-D-xylofuranosyl]-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-xylofuranosyl]-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one

3-[3-O-Acetyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-xylofuranosyl]-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-3-O-[(trifluoromethyl)sulfonyl]-β-D-ribofuranosyl]-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-β-D-ribofuranosyl]-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3′-deoxy-3′-fluoroinosine

N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-deoxy-3-fluoro-β-D-ribofuranosyl]-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methylpropanamide

N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-deoxy-3-fluoro-β-D-xylofuranosyl]-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methylpropanamide

N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-deoxy-2-O-[(1,1-dimethylethyl)dimethylsilyl]-3-fluoro-β-D-ribofuranosyl]-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methylpropanamide

N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-deoxy-2-O-[(1,1-dimethylethyl)dimethylsilyl]-3-fluoro-β-D-xylofuranosyl]-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methylpropanamide

N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-xylofuranosyl]-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methylpropanamide

N-[7-[3-O-Acetyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-xylofuranosyl]-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methylpropanamide

N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-3-O-[(trifluoromethyl)sulfonyl]-β-D-ribofuranosyl]-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methylpropanamide