Benzoic acid (1S,2R,4R,5R)-4-formyloxymethyl-5-methyl-3-oxo-6-oxa-bicyclo[3.1.0]hex-2-yl ester 在
硼酸 、 sodium cyanoborohydride 作用下,
以
甲醇 为溶剂,
生成 Benzoic acid (1S,2S,3S,4S,5R)-3-hydroxy-4-hydroxymethyl-5-methyl-6-oxa-bicyclo[3.1.0]hex-2-yl ester 、 Benzoic acid (1S,2S,3R,4S,5R)-3-hydroxy-4-hydroxymethyl-5-methyl-6-oxa-bicyclo[3.1.0]hex-2-yl ester 、 Benzoic acid (1S,2S,3S,4S,5R)-4-formyloxymethyl-3-hydroxy-5-methyl-6-oxa-bicyclo[3.1.0]hex-2-yl ester 、 Benzoic acid (1S,2S,3R,4S,5R)-4-formyloxymethyl-3-hydroxy-5-methyl-6-oxa-bicyclo[3.1.0]hex-2-yl ester