桃金娘烯醛 、 2,2-Dimethyl-propionic acid (2S,3R,4S,5R,6R)-2-[((E)-buta-1,3-dienyl)oxy]-3,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-4-yl ester 在
二氯二茂钛 、
异丙基氯化镁 作用下,
生成 2,2-Dimethyl-propionic acid (2S,3R,4S,5R,6R)-2-[(E)-(3R,4R)-4-((1S,5R)-6,6-dimethyl-bicyclo[3.1.1]hept-2-en-2-yl)-4-hydroxy-3-methyl-but-1-enyloxy]-4,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-3-yl ester 、 2,2-Dimethyl-propionic acid (2S,3R,4S,5R,6R)-2-[(E)-(3R,4R)-4-((1R,5S)-6,6-dimethyl-bicyclo[3.1.1]hept-2-en-2-yl)-4-hydroxy-3-methyl-but-1-enyloxy]-4,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-3-yl ester 、
2,2-Dimethyl-propionic acid (2S,3R,4S,5R,6R)-2-[(E)-(3S,4S)-4-((1R,5S)-6,6-dimethyl-bicyclo[3.1.1]hept-2-en-2-yl)-4-hydroxy-3-methyl-but-1-enyloxy]-4,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-3-yl ester