(1S,3S)-3-((S)-5-Formyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-2,2-dimethyl-cyclopropanecarboxylic acid methyl ester 、
甲氧羰基亚甲基三苯基正膦 以
甲醇 为溶剂,
生成
(1S,3S)-3-[(4S,5S)-5-((Z)-2-Methoxycarbonyl-vinyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-2,2-dimethyl-cyclopropanecarboxylic acid methyl ester 、 (1S,3S)-3-[(4S,5S)-5-((E)-2-Methoxycarbonyl-vinyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-2,2-dimethyl-cyclopropanecarboxylic acid methyl ester