S-[(1E)-2-[(4-Methylphenyl)sulfonyl]-1-(1,2,3,4-tetrahydro-2,4-dioxo-1-β-D-ribofuranosyl-5-pyrimidinyl)ethenyl]-L-cysteine ethyl ester

2′-Deoxy-5-[(1E)-1-iodo-2-[(4-methylphenyl)sulfonyl]ethenyl]uridine

Uridine, 5-[(1E)-1-bromo-2-[(4-methylphenyl)sulfonyl]ethenyl]-2′-deoxy-

Uridine, 5-[(1E)-1-chloro-2-[(4-methylphenyl)sulfonyl]ethenyl]-2′-deoxy-

1-β-D-Arabinofuranosyl-5-[(1E)-1-chloro-2-[(4-methylphenyl)sulfonyl]ethenyl]-2,4(1H,3H)-pyrimidinedione

Uridine, 5-[(1E)-2-[(4-methylphenyl)sulfonyl]ethenyl]-, 2′,3′,5′-triacetate

5-[(1E)-2-[(4-Methylphenyl)sulfonyl]ethenyl]uridine

5-[(1E)-1-Iodo-2-[(4-methylphenyl)sulfonyl]ethenyl]uridine

Uridine, 5-[(1E)-1-bromo-2-[(4-methylphenyl)sulfonyl]ethenyl]-

Uridine, 5-[(1E)-1-chloro-2-[(4-methylphenyl)sulfonyl]ethenyl]-

Uridine, 5-[(1E)-1-chloro-2-[(4-methylphenyl)sulfonyl]ethenyl]-2′-deoxy-, 3′,5′-diacetate

5-[(1E)-1-Chloro-2-[(4-methylphenyl)sulfonyl]ethenyl]-1-(2,3,5-tri-O-acetyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

Uridine, 5-[(1E)-1-bromo-2-[(4-methylphenyl)sulfonyl]ethenyl]-, 2′,3′,5′-triacetate

Uridine, 5-[(1E)-1-chloro-2-[(4-methylphenyl)sulfonyl]ethenyl]-, 2′,3′,5′-triacetate

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[(dimethylamino)methylene]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidate]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(dimethylamino)methylene]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidate]

N-[(S)-[[(1R,2R,5R)-4-(3,4-Dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-5-fluoro-1-hydroxy-3-oxabicyclo[3.1.0]hex-2-yl]methoxy]phenoxyphosphinyl]-L-alanine 1-methylethyl ester

N-[(S)-[[(1R,2R,5R)-4-(3,4-Dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-5-fluoro-1-[(triethylsilyl)oxy]-3-oxabicyclo[3.1.0]hex-2-yl]methoxy]phenoxyphosphinyl]-L-alanine 1-methylethyl ester

1-[(1R,4R,5R)-1-Fluoro-4-(hydroxymethyl)-5-[(triethylsilyl)oxy]-3-oxabicyclo[3.1.0]hex-2-yl]-2,4(1H,3H)-pyrimidinedione