5-Methyl-1-[2,6,8-tri-O-acetyl-3,7-anhydro-5-deoxy-5-[[(phenylmethoxy)carbonyl]amino]-D-threo-β-D-allo-octofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[3,7-Anhydro-5,8-dideoxy-6-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[[(phenylmethoxy)carbonyl]amino]-D-threo-β-D-allo-octofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[3,7-Anhydro-5-deoxy-6-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[[(phenylmethoxy)carbonyl]amino]-D-threo-β-D-allo-octofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[5,7,8-trideoxy-6-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[[(phenylmethoxy)carbonyl]amino]-L-glycero-β-D-allo-oct-7-enofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[2,3-Di-O-acetyl-5,7,8-trideoxy-6-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[[(phenylmethoxy)carbonyl]amino]-L-glycero-β-D-allo-oct-7-enofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,3-Di-O-acetyl-5,7,8-trideoxy-5-[[(phenylmethoxy)carbonyl]amino]-L-glycero-β-D-allo-oct-7-enofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,3-Di-O-acetyl-6,7-anhydro-5,8-dideoxy-8-iodo-5-[[(phenylmethoxy)carbonyl]amino]-D-threo-β-D-allo-octofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2-O-Acetyl-3,7-anhydro-5-deoxy-6-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[[(phenylmethoxy)carbonyl]amino]-D-threo-β-D-allo-octofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

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

1-[2-O-Acetyl-3,7-anhydro-5-deoxy-6,8-di-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[[(phenylmethoxy)carbonyl]amino]-D-threo-β-D-allo-octofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[3,7-Anhydro-5-deoxy-6,8-di-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[[(phenylmethoxy)carbonyl]amino]-D-threo-β-D-allo-octofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

4-Chloro-7-(2-C-ethynyl-β-D-ribofuranosyl)-5-fluoro-7H-pyrrolo[2,3-d]pyrimidine

7-[3,5-Bis-O-[(2,4-dichlorophenyl)methyl]-2-C-ethynyl-β-D-ribofuranosyl]-4-chloro-7H-pyrrolo[2,3-d]pyrimidine

5-Ethynyl-7-(2-C-ethynyl-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

7-(2-C-Ethynyl-β-D-ribofuranosyl)-5-iodo-7H-pyrrolo[2,3-d]pyrimidin-4-amine

7-(2-C-Ethynyl-β-D-ribofuranosyl)-5-iodo-4-methoxy-7H-pyrrolo[2,3-d]pyrimidine

4-Chloro-7-(2-C-ethynyl-β-D-ribofuranosyl)-5-iodo-7H-pyrrolo[2,3-d]pyrimidine

4-Chloro-7-[2-C-ethynyl-3,5-bis-O-(4-methylbenzoyl)-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidine

2,4(1H,3H)-Pyrimidinedione, 1-[2-O-[3-hydroxy-1,1,3,3-tetrakis(1-methylethyl)disiloxanyl]-β-D-arabinofuranosyl]-

1-[3,5-O-[1,1,3,3-Tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione