(-)-(3S,4R,5R,6R)-3-(3",4",5"-trimethoxy-α-acetoxybenzyl)-4-(3',4'-methylenedioxybenzoyl)-5-(1-menthyloxy)butyrolactone 在
sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
反应 1.17h,
以30%的产率得到(-)-(3S,4R,5R,6R)-3-(3",4",5"-trimethoxy-α-acetoxybenzyl)-4-(3',4'-methylenedioxy-α-hydroxybenzyl)-5-(1-menthyloxy)butyrolactone