(R)-4-(tert-Butyl-dimethyl-silanyloxy)-3-hydroxy-4-((3aR,5S,6S,6aR)-6-hydroxy-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl)-butyric acid ethyl ester 在
sodium tetrahydroborate 、 calcium chloride 作用下,
以
四氢呋喃 为溶剂,
反应 48.0h,
以0.40 g的产率得到5-O-(tert-Butyldimethylsilyl)-7-desoxy-1,2-O-isopropyliden-β-L-glycero-D-gluco-octofuranose