2,3-Dihydroxy-2-methyl-butyric acid (1S,2R,5S)-2-isopropyl-5-methyl-cyclohexyl ester 在
原乙酸三甲酯 、
乙酰溴 、
potassium carbonate 作用下,
生成
(2S,3S)-2,3-Dimethyl-oxirane-2-carboxylic acid (1S,2R,5S)-2-isopropyl-5-methyl-cyclohexyl ester 、 (2R,3R)-2,3-Dimethyl-oxirane-2-carboxylic acid (1S,2R,5S)-2-isopropyl-5-methyl-cyclohexyl ester