在
magnesium bromide ethyl etherate 作用下,
以
乙腈 为溶剂,
反应 2.0h,
以3.2 mg的产率得到[(1S,3R,4S,5S,6R,8R,9S,10R,11R,13S,14R)-14-[(2R,3S,5R,6S)-6-[(1R)-1,3-bis(phenylmethoxy)propyl]-6-methyl-2-(2-methylprop-2-enyl)-5-phenylmethoxyoxan-3-yl]oxy-13-ethenyl-4,5,10-trimethylspiro[2,7,12-trioxatricyclo[9.4.0.03,8]pentadecane-6,2'-oxolane]-9-yl]oxy-tert-butyl-dimethylsilane