4-Amino-1-β-D-ribofuranosyl-1H-pyrazole-5-carboxamide

4-Amino-1-β-D-ribofuranosyl-1H-pyrazole-3-carboxamide

4-Nitro-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-pyrazole-5-carbonitrile

4-Nitro-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-pyrazole-3-carbonitrile

Adenosine, 8-(methylthio)-N-(1-oxobutyl)-, cyclic 3′,5′-(hydrogen phosphate)

Cytidine, 5′-O-phosphonothymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxy-

2(1H)-Pyrimidinone, 4-amino-1-(2,5-dideoxy-α-D-erythro-hexofuranosyl)-

Acetamide, N-[1-(3,6-di-O-benzoyl-2,5-dideoxy-α-D-erythro-hexofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]-

2(1H)-Pyrimidinone, 4-amino-1-(2,5-dideoxy-β-D-erythro-hexofuranosyl)-

N-[1-(3,6-Di-O-benzoyl-2,5-dideoxy-β-D-erythro-hexofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]acetamide

Pyridinium, 3-(aminocarbonyl)-1-[5-O-[hydroxy(phosphonooxy)phosphinyl]-β-D-ribofuranosyl]-, inner salt, P′→5′-ester with 6,9-dihydro-6-imino-9-β-D-ribofuranosyl-1H-purine-1-acetic acid

Uridine, 5′-O-phosphonoadenylyl-(3′→5′)-2-thio-

1H-Pyrrolo[2,3-d]pyrimidine-5-carbonitrile, 2-chloro-4,7-dihydro-4-oxo-7-β-D-ribofuranosyl-

2,4-Dichloro-7-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile

4,7-Dihydro-3-hydroxy-4-oxo-7-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile

4,7-Dihydro-3-hydroxy-4-oxo-7-β-D-ribofuranosyl-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile

Uridine, 5′-bromo-5′-deoxy-2-O-methyl-2′,3′-O-(1-methylethylidene)-

Uridine, 5′-[benzoyl[(phenylmethoxy)carbonyl]amino]-5′-deoxy-2′,3′-O-(1-methylethylidene)-

Uridine, 2-O-methyl-2′,3′-O-(1-methylethylidene)-5′-O-[phenyl[[(phenylmethoxy)carbonyl]imino]methyl]-

5′-[Benzoyl[(phenylmethoxy)carbonyl]amino]-5′-deoxy-2-O-methyl-2′,3′-O-(1-methylethylidene)uridine