Cytidine, N-[[2-(acetyloxy)ethoxy]carbonyl]-2′-deoxy-2′,2′-difluoro-

L-Serine, N-[(1-aminocyclohexyl)carbonyl]-, [1-(2-deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate (ester)

L-Serine, 2-methylalanyl-, [1-(2-deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate (ester)

L-Serine, (2S)-2-phenylglycyl-, [1-(2-deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate (ester)

L-Serine, glycyl-, [1-(2-deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate (ester)

L-Serine, 3-methyl-L-valyl-, [1-(2-deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate (ester)

L-Serine, L-alanyl-, [1-(2-deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate (ester)

L-Valine, 5′-ester with N-[[(acetyloxy)methoxy]carbonyl]-2′-deoxy-2′,2′-difluorocytidine

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[[[(2-methylbenzoyl)oxy]methoxy]carbonyl]-

Cytidine, 2′-deoxy-N-[[[(2,6-dimethylbenzoyl)oxy]methoxy]carbonyl]-2′,2′-difluoro-

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[[1-(2-methyl-1-oxopropoxy)ethoxy]carbonyl]-

Cytidine, N-[[(acetyloxy)methoxy]carbonyl]-2′-deoxy-2′,2′-difluoro-

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[(pentyloxy)carbonyl]-, 3′-acetate

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[(pentyloxy)carbonyl]-, 5′-acetate

2-[[[[1-(2-Deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]amino]carbonyl]oxy]-2-methylpropanoic acid

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[[(1-methylethenyl)oxy]carbonyl]-

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[[(4-methoxyphenyl)methoxy]carbonyl]-

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[(2,2,2-trifluoroethoxy)carbonyl]-

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[(4-methoxyphenoxy)carbonyl]-

Cytidine, 2′-deoxy-2′,2′-difluoro-N-(phenoxycarbonyl)-