(1R,2S,3S,4S,5R)-1-O-acetyl-2-O-benzyl-5-iodo-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