Uridine 5′-(tetrahydrogen triphosphate), 5-[[[2-(1H-imidazol-4-yl)ethyl]amino]carbonyl]-2′,3′-O-(1-methylethylidene)-

Uridine 5′-(tetrahydrogen triphosphate), 2′,3′-O-(1-methylethylidene)-5-[[(4-pyridinylmethyl)amino]carbonyl]-

Guanosine, 8-[[(1,1-dimethylethyl)amino]carbonyl]-, 2′,3′,5′-triacetate

Adenosine, 8-(4-pyridinylcarbonyl)-

Adenosine, 8-(4-pyridinylcarbonyl)-, 2′,3′,5′-triacetate

N-[6,9-Dihydro-9-[4-C-(1-hydroxycyclopropyl)-2-O-(methylsulfonyl)-3,5-bis-O-(phenylmethyl)-β-D-arabinofuranosyl]-6-oxo-1H-purin-2-yl]-2-methylpropanamide

N-[9-[4-C-[1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]cyclopropyl]-2-O-(methylsulfonyl)-3,5-bis-O-(phenylmethyl)-β-D-arabinofuranosyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

4′-C-[1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]cyclopropyl]-N-(2-methyl-1-oxopropyl)-3′,5′-bis-O-(phenylmethyl)guanosine

N-[9-[4-C-[1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]cyclopropyl]-3,5-bis-O-(phenylmethyl)-β-D-arabinofuranosyl]-9H-purin-6-yl]benzamide

N-[9-[4-C-[1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]cyclopropyl]-3,5-bis-O-(phenylmethyl)-β-D-arabinofuranosyl]-8,9-dihydro-7H-purin-6-yl]benzamide

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[6-[[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]oxy]hexyl]-, 2′,3′-dibenzoate