(3aR,3bR,6aS,7R,7aS)-7-benzoxy<1,3,2>dioxathiolo<4,5-a>cyclopent<4,5-d>oxazolidin-2,2,5-trione

(1S,2S,3R,4R,5R)-2-O-benzyl-5-((tert-butoxycarbonyl)amino)-3,4-O-isopropylidenecyclopentane-1,2,3,4-tetrol

(1R,2S,3S,4S,5R)-2-O-benzyl-1-O-(tert-butyldimethylsilyl)-5-iodo-3,4-O-isopropylidenecyclopentane-1,2,3,4-tetrol

(1S,2S,3R,4R,5S)-5-azido-2-O-benzyl-1-O-(tert-butyldimethylsilyl)-3,4-O-isopropylidenecyclopentane-1,2,3,4-tetrol