Methyl (4aR,4bS,11aS,11bR)-1-[3-O-acetyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-1,3,4,4a,4b,11b-hexahydro-4a-methyl-2,4,8-trioxo-8H-pyrano[3′′,2′′:5′,6′]benzofuro[3′,2′:3,4]cyclobuta[1,2-d]pyrimidine-11a(2H)-carboxylate

Inosine, 2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-6-O-[2-(4-nitrophenyl)ethyl]-

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-6-O-[2-(4-nitrophenyl)ethyl]inosine

Adenosine, cytidylyl-(5′→3′)-2′-O-(tetrahydro-2H-pyran-2-yl)-, cyclic methyl orthoformate

N-[9-(5-O-Phosphono-β-D-ribofuranosyl)-9H-purin-6-yl]-D-aspartic acid

Uridine, 2′-chloro-2′-deoxy-2′-methyl-, 3′,5′-diacetate, (2′R)-

Uridine, cytidylyl-(5′→3′)-2′-O-(tetrahydro-2H-pyran-2-yl)-, cyclic methyl orthoformate

Adenosine, 2′-O-(tetrahydro-2H-pyran-2-yl)uridylyl-(3′→ 5′)-, cyclic 2′,3′-(methyl orthoformate)

Adenosine, 2′-O-(tetrahydro-2H-pyran-2-yl)-, (S)-

Adenosine, 2′-O-(tetrahydro-2H-pyran-2-yl)-, (R)-

β-Neuraminic acid, N-(thiocarboxy)-, 2-(hydrogen 5′-cytidylate)

(6R,7R,8R,9R)-9-(Chloromethyl)-7-fluoro-7,8,9,10-tetrahydro-8-[[tris(1-methylethyl)silyl]oxy]-6,9-epoxy-2H,6H-pyrimido[2,1-b][1,3]oxazocin-2-one

[(6R,7R,8R,9S)-7-Fluoro-7,8,9,10-tetrahydro-2-oxo-8-[[tris(1-methylethyl)silyl]oxy]-6,9-epoxy-2H,6H-pyrimido[2,1-b][1,3]oxazocin-9-yl]methyl 1,1,1-trifluoromethanesulfonate

2′,5′-Dideoxy-2′-fluoro-5′-oxo-3′-O-[tris(1-methylethyl)silyl]uridine

4′-C-(Chloromethyl)-2′-deoxy-2′-fluoro-3′-O-[tris(1-methylethyl)silyl]uridine

Uridine, 2′-deoxy-2′-fluoro-4′-C-[[[(trifluoromethyl)sulfonyl]oxy]methyl]-3′-O-[tris(1-methylethyl)silyl]-, 5′-(1,1,1-trifluoromethanesulfonate)

2′-Deoxy-2′-fluoro-4′-C-(hydroxymethyl)-3′-O-[tris(1-methylethyl)silyl]uridine

L-Tyrosine, O-[(2-cyanoethoxy)hydroxyphosphinyl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, 3′-ester with 1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-3-nitro-1H-pyrrole