N-{1-[(3R,5S)-3-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-2-methyl-isoxazolidin-5-yl]-2-oxo-1,2-dihydro-pyrimidin-4-yl}-benzamide

(2S,3R,4R,5R)-2-[4-(Benzoylamino)-2-oxo-1,2-dihydropyrimidin-1-yl]-5-[(2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}ethoxy)methyl]tetrahydrofuran-3,4-diyl diacetate

(2S,3R,4R,5R)-2-[2-(Benzoylamino)-2-oxo-1,2-dihydropyrimidin-1-yl]-5-({2-[(2,3-dihydroxy-5-nitrobenzoyl)amino]ethoxy}methyl)tetrahydrofuran-3,4-diyl diacetate

N4-benzoyl-1-[3-C-(benzyloxymethyl)-2,3-dideoxy-3-C-methyl-α-D-glycero-tetrofuranosyl]cytosine

N4-benzoyl-1-[3-C-(benzyloxymethyl)-2,3-dideoxy-3-C-methyl-β-D-glycero-tetrafuranosyl]cytosine