3',5'-Bis-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-2'-fluorouridine

3'-Deoxy-3'-[[(2S)-4-carboxy-2-[[(1,1-dimethylethoxy)carbonyl]amino]-1-oxobutyl]amino]-N,N-dimethyladenosine

1-[2-O-(2-Cyanoethyl)-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-ribofuranosyl]-4,6-difluoro-1H-benzimidazole

N,N'-[[[[5-(2-Amino-1,6-dihydro-6-oxo-9H-purin-9-yl)-2-ethynyltetrahydro-4-hydroxy-2-furanyl]oxy]methyl]phosphinylidene]bis[L-alanine] 1,1'-dibutyl ester

N,N'-[[[[5-(2-Amino-1,6-dihydro-6-oxo-9H-purin-9-yl)-2-ethynyltetrahydro-4-hydroxy-3-methylene-2-furanyl]oxy]methyl]phosphinylidene]bis[L-alanine] 1,1'-dibutyl ester

(2-Bromophenyl)methyl 2-[(9-β-D-ribofuranosyl-9H-purin-6-yl)amino]-7-azabicyclo[2.2.1]heptane-7-carboxylate

(2-Chlorophenyl)methyl 2-[(9-β-D-ribofuranosyl-9H-purin-6-yl)amino]-7-azabicyclo[2.2.1]heptane-7-carboxylate

5'-Deoxy-5'-[[N-[[(4-methoxyphenyl)amino]carbonyl]-L-tyrosyl-3-[[(2S)-2-amino-3-(4-nitrophenyl)-1-oxopropyl]amino]-L-alanyl]amino]uridine

5'-Deoxy-5'-[[N-[(hexylamino)carbonyl]-L-phenylalanyl-3-[[(2S)-2-amino-3-(1H-indol-3-yl)-1-oxopropyl]amino]-L-alanyl]amino]uridine