5′-Uridylic acid, 5′→P:5′′′→P′-dianhydride with imidodiphosphoric acid

5′-Uridylic acid, 5′→P:5′′′→P′-dianhydride with P,P′-(difluoromethylene)bis[phosphonic acid]

Imidazo[1,2-c]pyrimidin-5(6H)-one, 6-[5-O-[hydroxy[[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-, P′′′→5′-ester with 6-β-D-ribofuranosylimidazo[1,2-c]pyrimidin-5(6H)-one

5′-Uridylic acid, 5′→P:5′′′→P′-dianhydride with methylenebis[phosphonic acid]

9-(5-O-Phosphono-β-L-ribofuranosyl)-9H-purin-6-amine

Hypoxanthine, 9-β-DL-ribofuranosyl-, 5′-(dihydrogen phosphate)

Hypoxanthine, 9-(2,3-O-isopropylidene-β-DL-ribofuranosyl)-

6H-Purin-6-one, 1,9-dihydro-9-β-ribofuranosyl-

9-(5-O-Phosphono-β-ribofuranosyl)-9H-purin-6-amine

9-[2,3-O-(1-Methylethylidene)-β-ribofuranosyl]-9H-purin-6-amine

9-β-Ribofuranosyl-9H-purin-6-amine

Phenyl hydrogen 5′-cytidylate

5′-Cytidylic acid, N-acetyl-, diphenyl ester, 2′,3′-dibenzoate

Uracil, 3-D-ribofuranosyl-

Uracil, 3-D-ribofuranosyl-, 5′-(phenyl hydrogen phosphate)

Uracil, 3-D-ribofuranosyl-, 2′,3′-dibenzoate 5′-(diphenyl phosphate)

Theophylline, 7-β-D-ribofuranosyl-, 5′-(dihydrogen phosphate)

Cytosine, 1-D-ribofuranosyl-, 5′-(dihydrogen phosphate)

1-[3-Deoxy-3-fluoro-5-O-[(4-methoxyphenyl)diphenylmethyl]-β-D-arabinofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione