Cytidine, 2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxy-

6-[2-(2-Propen-1-yl)phenyl]-9-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-9H-purine

1-(3,5-Di-O-acetyl-2-C-methyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

Uridine, 2′-C-methyl-, 2′,5′-dibenzoate

Uridine, 2′-deoxy-2′-methylene-, 3′,5′-dibenzoate

Uridine, 2′-C-methyl-, 3′,5′-bis(2,2-dimethylpropanoate)

Uridine, 2′-deoxy-2′-methylene-, 3′,5′-bis(2,2-dimethylpropanoate)

Uridine, 2′-deoxy-2′-methylene-, 3′,5′-dimethanesulfonate

Uridine, 2′-deoxy-2′-fluoro-2′-methyl-, 3′,5′-bis(2,2,2-trichloroacetate), (2′R)-

1-(3,5-Di-O-benzoyl-2-C-methyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-[2-C-Methyl-3,5-bis-O-(methylsulfonyl)-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[3,5-Bis-O-(2-chloroacetyl)-2-C-methyl-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[2-C-Methyl-3,5-bis-O-(2,2,2-trifluoroacetyl)-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[2-C-Methyl-3,5-bis-O-(2,2,2-trichloroacetyl)-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

Ethyl (2R,3R,3aR,9aR)-α,α-difluoro-2,3,3a,9a-tetrahydro-3-hydroxy-2-(hydroxymethyl)-6-oxo-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidine-7-acetate

Ethyl α,α-difluoro-1,2,3,4-tetrahydro-2,4-dioxo-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-5-pyrimidineacetate

5-[2-(Diethylamino)-1,1-difluoro-2-oxoethyl]uridine

Ethyl α,α-difluoro-1,2,3,4-tetrahydro-2,4-dioxo-1-β-D-ribofuranosyl-5-pyrimidineacetate