溴苯 、
[(1R,2S,4R,6R,7S,10S,11S,14S,16S)-6-[(1S)-1-acetyloxyethyl]-7,11-dimethyl-5-oxapentacyclo[8.8.0.02,7.04,6.011,16]octadecan-14-yl] acetate 在
碘 、
magnesium 、
氯化铵 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 7.0h,
以76.9%的产率得到(3S,5S,8R,9S,10S,13S,14S,16R,17S)-17-[(1S)-1-hydroxy-1-phenylethyl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,16-diol