5-cholestene-3α-19-diol 3-acetate 19-nitrate 在
高氯酸 、
N-溴代乙酰胺 作用下,
以
1,4-二氧六环 为溶剂,
反应 0.5h,
生成 (3R,5R,6R,8S,9S,10R,13R,14S,17R)-6-Bromo-17-((R)-1,5-dimethyl-hexyl)-5-isopropenyloxy-13-methyl-10-nitrooxymethyl-hexadecahydro-cyclopenta[a]phenanthren-3-ol 、
Acetic acid (3R,5R,6S,8S,9S,10R,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-13-methyl-10-nitrooxymethyl-hexadecahydro-20-oxa-cyclopropa[5,6]cyclopenta[a]phenanthren-3-yl ester