Uridine, 5′-[hydrogen [(2S)-3-[(2S,3S,4S,5S)-5-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2-pyrrolidinyl]-2-hydroxypropyl]phosphonate]

Uridine, 5′-[ethyl [(2S)-3-[(2S,3S,4S,5S)-5-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2-pyrrolidinyl]-2-hydroxypropyl]phosphonate]

5H-Imidazo[1,2-b]pyrazol-7-carboximidamide, N-hydroxy-5-β-D-ribofuranosyl-

5-β-D-Ribofuranosyl-5H-imidazo[1,2-b]pyrazole-7-carboxamide

6-(Methylsulfonyl)-1-β-D-ribofuranosyl-1H-imidazo[1,2-b]pyrazole-7-carboxamide

N-Hydroxy-1-β-D-ribofuranosyl-1H-imidazo[1,2-b]pyrazole-7-carboximidamide

1-β-D-Ribofuranosyl-1H-imidazo[1,2-b]pyrazole-7-carboxamide

5-β-D-Ribofuranosyl-5H-imidazo[1,2-b]pyrazole-7-carbonitrile

5-(2,3,5-Tri-O-benzoyl-β-D-ribofuranosyl)-5H-imidazo[1,2-b]pyrazole-7-carbonitrile

6-(Methylsulfonyl)-1-β-D-ribofuranosyl-1H-imidazo[1,2-b]pyrazole-7-carbonitrile

6-(Methylthio)-1-β-D-ribofuranosyl-1H-imidazo[1,2-b]pyrazole-7-carbonitrile

1-β-D-Ribofuranosyl-1H-imidazo[1,2-b]pyrazole-7-carbonitrile

1-(2,3,5-Tri-O-benzoyl-β-D-ribofuranosyl)-1H-imidazo[1,2-b]pyrazole-7-carbonitrile

10-[5-[3-(2-Deoxy-β-D-erythro-pentofuranosyl)-3,6-dihydro-5-methyl-2,6-dioxo-1(2H)-pyrimidinyl]pentyl]-1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid

Thymidine, 3-(5-bromopentyl)-

Uridine, 2′,3′-O-(1-methylethylidene)-, 5′-[ethyl [(2S)-3-[(2S,3S,4S,5S)-5-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2-pyrrolidinyl]-2-hydroxypropyl]phosphonate]

Uridine, 2′,3′-O-(1-methylethylidene)-, 5′-[ethyl [(2S)-3-[(2S,3S,4S,5S)-5-[(1S)-1,2-bis(phenylmethoxy)ethyl]-3,4-bis(phenylmethoxy)-2-pyrrolidinyl]-2-hydroxypropyl]phosphonate]

Uridine, 2′,3′-O-(1-methylethylidene)-, 5′-[ethyl [[(2S,3aS,4S,5S,6S)-6-[(1S)-1,2-bis(phenylmethoxy)ethyl]hexahydro-4,5-bis(phenylmethoxy)pyrrolo[1,2-b]isoxazol-2-yl]methyl]phosphonate]

Uridine, 2′,3′-O-(1-methylethylidene)-, 5′-(ethyl 2-propenylphosphonate)

Guanosine 5′-(trihydrogen diphosphate) P′-(6-azido-6-deoxy-β-L-galactopyranosyl) ester