Phenylmethyl 4-amino-1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-5-pyrimidinecarboxylate

Phenylmethyl 1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinecarboxylate

2′,3′-O-[3-[4-(4-Carboxybutoxy)phenyl]-1-methylpropylidene]-5′-deoxy-5′-(4,5,6,7-tetrachloro-1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)uridine

5′-Deoxy-5′-[[3,4-dioxo-2-[(2-phenylethyl)amino]-1-cyclobuten-1-yl]amino]uridine

5′-Deoxy-5′-[[2-[[(4-methoxyphenyl)methyl]amino]-3,4-dioxo-1-cyclobuten-1-yl]amino]uridine

5′-Deoxy-5′-[[2-[[(3-fluorophenyl)methyl]amino]-3,4-dioxo-1-cyclobuten-1-yl]amino]uridine

5′-Deoxy-5′-[[2-[4-(6-methoxy-2-naphthalenyl)-1H-1,2,3-triazol-1-yl]acetyl]amino]uridine

5′-Deoxy-5′-[[2-[4-(5-pyrimidinyl)-1H-1,2,3-triazol-1-yl]acetyl]amino]uridine

5′-Deoxy-5′-[[2-[4-(4-methoxyphenyl)-1H-1,2,3-triazol-1-yl]acetyl]amino]uridine

5′-Deoxy-5′-[[2-[4-(3-fluorophenyl)-1H-1,2,3-triazol-1-yl]acetyl]amino]uridine

2′,3′-O-[3-[4-(4-Carboxybutoxy)phenyl]-1-methylpropylidene]uridine

2′,3′-O-[3-[4-[(5-Methoxy-5-oxopentyl)oxy]phenyl]-1-methylpropylidene]uridine

5′-Deoxy-5′-[[3,4-dioxo-2-[(phenylmethyl)amino]-1-cyclobuten-1-yl]amino]uridine

5′-Deoxy-5′-[[2-(4-phenyl-1H-1,2,3-triazol-1-yl)acetyl]amino]uridine