(3S,4aS,5aR,6aS,6bS,9R,9aR,11aS,11bR)-9-((2R,5R)-5-ethyl-6-methylheptan-2-yl)-9a,11b-dimethylhexadecahydrocyclopenta[1,2]phenanthro[8a,9-b]oxiren-3-yl 9,10-bis((tert-butyldimethylsilyl)oxy)octadecanoate 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 24.0h,
以71%的产率得到[(1S,2R,5S,7S,9R,11S,12S,15R,16R)-15-[(2R,5R)-5-ethyl-6-methylheptan-2-yl]-2,16-dimethyl-8-oxapentacyclo[9.7.0.02,7.07,9.012,16]octadecan-5-yl] 9,10-dihydroxyoctadecanoate