(1R,2R,3R,4R,5R,7R)-7-benzyloxy-4,5-dihydroxy-5-methoxy-2-methoxycarbonyl-6-oxo-4,5-O-(diphenylmethylidene)bicyclo[2.2.2]octan-3-yl 2-acetamido-1,2-dideoxy-1-thio-β-D-glucopyranoside 在
sodium tetrahydroborate 、 cerium(III) chloride heptahydrate 、
柠檬酸 作用下,
以
甲醇 、
二氯甲烷 、
水 为溶剂,
反应 2.33h,
以100%的产率得到(1S,2R,3R,4R,5S,6R,7R)-7-benzyloxy-4,5,6-trihydroxy-5-methoxy-2-methoxycarbonyl-4,5-O-(diphenylmethylidene)bicyclo[2.2.2]octan-3-yl 2-acetamido-1,2-dideoxy-1-thio-β-D-glucopyranoside