(4R)-4-allyl-4-demethyl-26-(acryloyloxy)epothilone B 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
二氯甲烷 为溶剂,
以24.8%的产率得到[(1S,5S,7S,9S,13S,14S,15R,17R)-14-hydroxy-13,15,17-trimethyl-5-[(E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-3,16,19-trioxo-4,8,20-trioxatricyclo[15.3.0.07,9]icosan-9-yl]methyl prop-2-enoate