(4R)-4-allyl-4-demethyl-26-hydroxyepothilone D 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
二氯甲烷 为溶剂,
以17.7%的产率得到(1S,5S,7E,12S,13S,14R,16R)-13-hydroxy-8-(hydroxymethyl)-12,14,16-trimethyl-5-[(E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-4,19-dioxabicyclo[14.3.0]nonadec-7-ene-3,15,18-trione