1-[3-[(Acetyloxy)methyl]-2,3-dideoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-α-D-erythro-pentofuranosyl]-4-methoxy-2(1H)-pyrimidinone

Uridine, 3′-[(acetyloxy)methyl]-2′,3′-dideoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-4-O-methyl-

Thymidine, 3′-azido-α-(decyloxy)-3′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Thymidine, 3′-azido-3′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-α-(octyloxy)-

Thymidine, 3′-azido-3′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-α-(heptyloxy)-

1-[3-Azido-2,3-dideoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-α-D-erythro-pentofuranosyl]-5-[(decyloxy)methyl]-2,4(1H,3H)-pyrimidinedione

1-[3-Azido-2,3-dideoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-α-D-erythro-pentofuranosyl]-5-[(octyloxy)methyl]-2,4(1H,3H)-pyrimidinedione

1-[3-Azido-2,3-dideoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-α-D-erythro-pentofuranosyl]-5-[(heptyloxy)methyl]-2,4(1H,3H)-pyrimidinedione

5-[(Decyloxy)methyl]-1-[2,3-dideoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-3-iodo-β-D-threo-pentofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[2,3-Dideoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-3-iodo-β-D-threo-pentofuranosyl]-5-[(octyloxy)methyl]-2,4(1H,3H)-pyrimidinedione

1-[2,3-Dideoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-3-iodo-β-D-threo-pentofuranosyl]-5-[(heptyloxy)methyl]-2,4(1H,3H)-pyrimidinedione

5-[(Decyloxy)methyl]-1-[2,3-dideoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-3-iodo-α-D-threo-pentofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[2,3-Dideoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-3-iodo-α-D-threo-pentofuranosyl]-5-[(octyloxy)methyl]-2,4(1H,3H)-pyrimidinedione

1-[2,3-Dideoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-3-iodo-α-D-threo-pentofuranosyl]-5-[(heptyloxy)methyl]-2,4(1H,3H)-pyrimidinedione

Thymidine, 5′-O-[[[6-[[(4S)-4-[[4-[[(2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]amino]-4-carboxy-1-oxobutyl]amino]hexyl]oxy]mercaptophosphinyl]-P-thiothymidylyl-(3′→5′)-

Thymidine, 5′-O-[[[6-[[(4S)-4-[[4-[[(2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]amino]-1-oxo-4-[[[6-(thymidylyl-(5′→3′)-5′-thymidylyloxy)hexyl]amino]carbonyl]butyl]amino]hexyl]oxy]hydroxyphosphinyl]thymidylyl-(3′→5′)-

Thymidine, 5′-O-[[[6-[[(4S)-4-[[4-[[(2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]amino]-4-carboxy-1-oxobutyl]amino]hexyl]oxy]hydroxyphosphinyl]thymidylyl-(3′→5′)-

7-Fluoro-1-β-D-ribofuranosyl-1H-imidazo[4,5-c]pyridin-4-amine

1-(2-Deoxy-β-D-erythro-pentofuranosyl)-1H-1,2,4-triazol-3-amine

1-(2-Deoxy-β-D-erythro-pentofuranosyl)-1H-pyrazole-4-carboxamide