[(2R,6R,7R,10R,12R,13R,14S,15S,17S)-15-hydroxy-4,4,7,18,19,19-hexamethyl-17-triethylsilyloxy-12-trimethylsilyloxy-3,5-dioxapentacyclo[13.3.1.02,6.07,13.010,12]nonadec-1(18)-en-14-yl] benzoate 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 0.5h,
以58%的产率得到[(2R,6R,7R,10R,12R,13R,14S,15S,17S)-12,15,17-trihydroxy-4,4,7,18,19,19-hexamethyl-3,5-dioxapentacyclo[13.3.1.02,6.07,13.010,12]nonadec-1(18)-en-14-yl] benzoate