草酸二甲酯

((4R,5S)-5-((1R,2R)-2-azido-1,3-dihydroxypropyl)-2,2-dimethyl-1,3-dioxolan-4-yl)methyl pivalate

(2R,3R,4R,5R)-2-azido-1,3:4,5-di(isopropylidenedioxy)-6-pivaloyloxyhexane

(2R,3R,4R,5R)-5-azido-6-tert-butyldimethylsilanyloxy-2,3-isopropylidenedioxy-1,4-hexanediol

(2R,3R,4R,5R)-2-azido-1-tert-butyldimethylsilanyloxy-4,5-isopropylidenedioxy-6-pivaloyloxy-3-hexanol