(Z)-(1R,3S,7S,8S,10S,12S,18R)-12-((E)-(S)-3-Cyclohexyl-1-hydroxy-allyl)-7-hydroxy-3-methyl-5-methylene-9,13,22-trioxa-tricyclo[16.3.1.08,10]docosa-15,19-dien-14-one 、
3-甲基苯乙烯 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
二氯甲烷 为溶剂,
反应 18.0h,
以50%的产率得到(1R,3S,7S,8S,10S,12S,15Z,18R)-7-hydroxy-12-[(E,1S)-1-hydroxy-3-(3-methylphenyl)prop-2-enyl]-3-methyl-5-methylidene-9,13,22-trioxatricyclo[16.3.1.08,10]docosa-15,19-dien-14-one