(S)-1-{(4S,5R)-5-[(R)-2-(tert-Butyl-diphenyl-silanyloxy)-1-hydroxy-ethyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-2,2-difluoro-but-3-en-1-ol

2,4-dimethoxy-6-C-<(2,3-O-isopropylidene-α-D-ribofuranosyl)methyl>-5-nitropyrimidine

2,4-dimethoxy-6-C-<(2,3-O-isopropylidene-β-D-ribofuranosyl)methyl>-5-nitropyrimidine

(4R,5R,4'S,5'S)-4,4'-Bis-iodomethyl-2,2'-bis-trichloromethyl-4,5,4',5'-tetrahydro-[5,5']bioxazolyl

3(E)-<<5(S)-(1(R),2-dihydroxyethyl)-2,2-dimethyl-1,3-dioxolan-4(S)-yl>methylene>2,5-pyrrolidinedione