(20S,22R,24R,25S,26R)-15α-acetoxy-5,6β:22,26-diepoxy-24,26-diethoxy-4β,25-dihydroxy-5β-ergostan-1-one 在
jones reagent 、
barium methoxide 作用下,
以
甲醇 、
丙酮 为溶剂,
反应 0.02h,
生成 (20S,22R,24R,25S,26R)-5,6β:22,26-diepoxy-24,26-diethoxy-25-hydroxy-5β-ergostane-1,4,15-trione