tert-butyl (3S)-3-[(4S)-2,2-dimethyl-5-oxo-1,3-dioxan-4-yl]butanoate 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
反应 3.0h,
生成 (3S,4S,5R)-4,6-O-isopropylidenedioxy-5-hydroxy-3-methylhexanoic acid tert-butyl ester 、 (3S,4S,5S)-4,6-O-isopropylidenedioxy-5-hydroxy-3-methylhexanoic acid tert-butyl ester