(3aS,5aS,7S,8R,9S,10aR,12aS,12bR)-9-Azido-7-bromo-8-hydroxy-5a-methoxy-3a-methyl-1,3a,4,5,5a,7,8,9,10,11,12,12b-dodecahydro-10a,12a-epoxybenzo[4,5]cyclohepta[1,2-e]inden-3(2H)-one 在
potassium superoxide 、
18-冠醚-6 作用下,
以
二甲基亚砜 、
甲苯 为溶剂,
以100 mg的产率得到(3aS,5aS,7R,8R,9S,10aR,12aS,12bR)-9-Azido-7,8-dihydroxy-5a-methoxy-3a-methyl-1,3a,4,5,5a,7,8,9,10,11,12,12b-dodecahydro-10a,12a-epoxybenzo[4,5]cyclohepta[1,2-e]inden-3(2H)-one