Imidazo[1,2-c]pyrimidinium, 2,3,5,6-tetrahydro-2-hydroxy-1-methyl-5-oxo-6-β-D-ribofuranosyl-

7,8-Dihydro-8-hydroxy-9-methyl-3-β-D-ribofuranosyl-3H-imidazo[2,1-i]purinium

1-(5-Deoxy-β-D-arabinofuranosyl)-5-fluoro-2,4(1H,3H)-pyrimidinedione

1-(5-Chloro-5-deoxy-β-D-arabinofuranosyl)-5-fluoro-2,4(1H,3H)-pyrimidinedione

1-(5-Chloro-5-deoxy-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

Uridine, 5′-chloro-2′,5′-dideoxy-5-fluoro-

Uridine, 5′-chloro-2′,5′-dideoxy-

Uridine, 2′-bromo-5′-chloro-2′,5′-dideoxy-5-fluoro-

Uridine, 2′-bromo-5′-chloro-2′,5′-dideoxy-

6H-Furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one, 2-(chloromethyl)-7-fluoro-2,3,3a,9a-tetrahydro-3-hydroxy-, [2S-(2α,3β,3aβ,9aβ)]-

Xanthosine, 6-O-ethyl-

Guanosine, 6-O-ethyl-3′-O-methyl-

4,6-Bis(methylthio)-1-β-D-ribofuranosyl-1H-pyrazolo[3,4-d]pyrimidine-3-carbonitrile

4-(Methylthio)-2-β-D-ribofuranosyl-2H-pyrazolo[3,4-d]pyrimidine

4,5,6,7-Tetrahydro-4-(methylthio)-1-α-D-ribofuranosyl-1H-pyrazolo[4,3-d]pyrimidine

4,5,6,7-Tetrahydro-4-hydroxy-6-(methylthio)-2-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-2H-pyrazolo[4,3-d]pyrimidine

2,5,6,7-Tetrahydro-2-β-D-ribofuranosyl-4H-pyrazolo[4,3-d]pyrimidin-4-amine

4,5,6,7-Tetrahydro-4-(methylthio)-2-β-D-ribofuranosyl-2H-pyrazolo[4,3-d]pyrimidine

4,5,6,7-Tetrahydro-4-hydroxy-6-(methylthio)-1-β-D-ribofuranosyl-1H-pyrazolo[4,3-d]pyrimidine

4,5,6,7-Tetrahydro-4-hydroxy-1-β-D-ribofuranosyl-1H-pyrazolo[4,3-d]pyrimidine