[(1S,2S,3R,4S,7R,9S,10S,12R,15S)-12-acetyloxy-1-hydroxy-10,14,17,17-tetramethyl-15-[(2R,3S)-3-[(2-methylpropan-2-yl)oxycarbonylamino]-3-(2-prop-2-enylphenyl)-2-tri(propan-2-yl)silyloxypropanoyl]oxy-11-oxo-4-prop-2-enoyloxy-9-triethylsilyloxy-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
二氯甲烷 为溶剂,
以70%的产率得到[(1S,5E,13S,14R,17S,19S,22R,24S,25S,27R,30R,31S)-22-acetyloxy-19-hydroxy-20,20,24,32-tetramethyl-13-[(2-methylpropan-2-yl)oxycarbonylamino]-3,15,23-trioxo-25-triethylsilyloxy-14-tri(propan-2-yl)silyloxy-2,16,28-trioxahexacyclo[17.10.2.117,21.01,27.07,12.024,30]dotriaconta-5,7,9,11,21(32)-pentaen-31-yl] benzoate