甲醇 、
(3aS,8S,9S,10aR,12aS,12bR)-9-Azido-8-hydroxy-3a-methyl-1,3a,4,5,8,9,10,11,12,12b-decahydro-10a,12a-epoxybenzo[4,5]cyclohepta[1,2-e]inden-3(2H)-one 在
N-溴代丁二酰亚胺(NBS) 作用下,
以
乙腈 为溶剂,
生成 (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