4-(2',3'-O-isopropylidene-5'-O-trityl-β-D-ribofuranosyl)-3-oxobutananilide

(S)-1-{5-[(E)-2-(2,6-Dimethoxy-5-nitro-pyrimidin-4-yl)-vinyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-2-trityloxy-ethanol

(S)-1-{5-[(Z)-2-(2,6-Dimethoxy-5-nitro-pyrimidin-4-yl)-vinyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-2-trityloxy-ethanol

(3aS,4R,6aR)-5-fluoro-2,2-dimethyl-6-((trityloxy)methyl)-4,6a-dihydro-3aH-cyclopenta[d][1,3]dioxol-4-ol

(3R,4S,6aR)-3-benzoyl-1-(5-fluoro-2,2-dimethyl-6-trityloxymethyl-4,6a-dihydro-3aH-cyclopenta[1,3]dioxol-4-yl)-1H-pyrimidine-2,4-dione