1-[(4aR,5S,7R,7aR)-Hexahydro-5-(hydroxymethyl)-2-thioxo-2H-furo[3,4-e]-1,3-oxazin-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(2R,3R,4R,5S)-4-(Azidomethyl)-3-fluoro-5-(fluoromethyl)tetrahydro-2-furanyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Uridine, 3′-(aminomethyl)-2′,3′-dideoxy-2′-fluoro-5-methyl-

Uridine, 3′-(azidomethyl)-2′,3′-dideoxy-2′-fluoro-5-methyl-

Uridine, 3′-(aminomethyl)-2′-chloro-2′,3′-dideoxy-5-methyl-

Uridine, 3′-(azidomethyl)-2′-chloro-2′,3′-dideoxy-5-methyl-

3′-Uridylic acid, 5-hydroxy-, 5′-(dihydrogen phosphate)

2′-Uridylic acid, 5-hydroxy-, 5′-(dihydrogen phosphate)

Nonanoic acid, 9-[[O-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl-(1→2)-6-S-[2-[[2-deoxy-1-O-[hydroxy(5′-uridylyloxy)phosphinyl]-α-D-glucopyranos-2-yl]amino]-2-oxoethyl]-6-thio-α-D-mannopyranosyl-(1→6)-β-D-mannopyranosyl]oxy]-, methyl ester

3H-Imidazo[1,2-a]purine-7-acetaldehyde, 3-(2-deoxy-β-D-erythro-pentofuranosyl)-4,9-dihydro-9-oxo-, α-(O-methyloxime), [C(Z)]-

3H-Imidazo[1,2-a]purine-7-acetaldehyde, 3-(2-deoxy-β-D-erythro-pentofuranosyl)-4,9-dihydro-9-oxo-, α-(O-methyloxime), [C(E)]-

3H-Imidazo[1,2-a]purine-7-acetaldehyde, 3-(2-deoxy-β-D-erythro-pentofuranosyl)-4,6,7,9-tetrahydro-6-hydroxy-9-oxo-, α-(O-methyloxime)

3-(2-Deoxy-β-D-erythro-pentofuranosyl)-7-(2,2-dihydroxyethyl)-3,4-dihydro-9H-imidazo[1,2-a]purin-9-one

3-(2-Deoxy-β-D-erythro-pentofuranosyl)-4,9-dihydro-9-oxo-3H-imidazo[1,2-a]purine-7-acetaldehyde

2-[3-(2-Deoxy-β-D-erythro-pentofuranosyl)-3H-imidazo[2,1-i]purin-7-yl]-1,1-ethanediol

3-(2-Deoxy-β-D-erythro-pentofuranosyl)-3H-imidazo[2,1-i]purine-7-acetaldehyde

1-[3-C-Acetyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-O-(hydroxyphosphinyl)-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

L-Valine, N-[(1,1-dimethylethoxy)carbonyl]-, diester with 1-(2-deoxy-β-L-erythro-pentofuranosyl)-2,4(1H,3H)-pyrimidinedione

L-Valine, N-[(1,1-dimethylethoxy)carbonyl]-, 3′-ester with 4-amino-1-(2-deoxy-β-L-erythro-pentofuranosyl)-2(1H)-pyrimidinone

L-Valine, N-[(1,1-dimethylethoxy)carbonyl]-, ester with 4-amino-1-[2-deoxy-5-O-[(1,1-dimethylethoxy)carbonyl]-β-L-erythro-pentofuranosyl]-2(1H)-pyrimidinone