Uridine, 2′-deoxy-5-[3-[3-[[(1,1-dimethylethoxy)carbonyl]amino]-1-oxobutoxy]-1-propynyl]-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-

N-Acetyl-β-alanine 3-[4-amino-1-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-1,2-dihydro-2-oxo-5-pyrimidinyl]-2-propyn-1-yl ester

N-Acetyl-β-alanine 3-[4-amino-1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-5-pyrimidinyl]-2-propyn-1-yl ester

β-Alanine, 3-[4-amino-1-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-1,2-dihydro-2-oxo-5-pyrimidinyl]-2-propyn-1-yl ester

N-[(1,1-Dimethylethoxy)carbonyl]-β-alanine 3-[4-amino-1-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-1,2-dihydro-2-oxo-5-pyrimidinyl]-2-propyn-1-yl ester

N-[(1,1-Dimethylethoxy)carbonyl]-β-alanine 3-[4-amino-1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-5-pyrimidinyl]-2-propyn-1-yl ester

N-[(1,1-Dimethylethoxy)carbonyl]-β-alanine 3-[4-amino-1-[2-deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-1,2-dihydro-2-oxo-5-pyrimidinyl]-2-propyn-1-yl ester

2′-Deoxy-5-[3-[3-[[(1,1-dimethylethoxy)carbonyl]amino]-1-oxo-3-phenylpropoxy]-1-propyn-1-yl]uridine 5′-(tetrahydrogen triphosphate)

2′-Deoxy-5-[3-[3-[[(1,1-dimethylethoxy)carbonyl]amino]-1-oxo-3-phenylpropoxy]-1-propyn-1-yl]uridine

2′-Deoxy-5-[3-[3-[[(1,1-dimethylethoxy)carbonyl]amino]-1-oxo-3-phenylpropoxy]-1-propyn-1-yl]-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]uridine

β-Alanine, 3-[1-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]-2-propyn-1-yl ester

N-[(1,1-Dimethylethoxy)carbonyl]-β-alanine 3-[1-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]-2-propyn-1-yl ester

N-[(1,1-Dimethylethoxy)carbonyl]-β-alanine 3-[1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]-2-propyn-1-yl ester

N-[(1,1-Dimethylethoxy)carbonyl]-β-alanine 3-[1-[2-deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]-2-propyn-1-yl ester

Thymidine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-5′-O-phosphonoguanylyl-(3′→5′)-, 3′-acetate

Thymidine, 2′-deoxycytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-

Uridine, N-[(dimethylamino)methylene]-2′-O-(1-ethoxyethyl)cytidylyl-(3′→5′)-2′,3′-O-(ethoxymethylene)-

Guanosine, 2′,5′-bis-O-(1-ethoxyethyl)uridylyl-(3′→5′)-2′-deoxy-

Uridine, N-acetyl-2′,5′-di-O-acetylguanylyl-(3′→5′)-

2-Chloro-2′,3′-O-(methoxymethylene)adenosine