(6α,9β,11β,16α,17α)-9,11-epoxy-6-fluoro-16-methyl-17-[[(3-methyl-2-thienyl)carbonyl]oxy]-3-oxo-androsta-1,4-diene-17-carboxylic acid methyl ester 在
盐酸 作用下,
以
2-甲基四氢呋喃 、
异丙醇 为溶剂,
反应 15.5h,
以Ca. 90 g的产率得到(6α,11β,16α,17α)-9-chloro-6-fluoro-11-hydroxy-16-methyl-17-[[(3-methyl-2-thienyl)carbonyl]oxy]-3-oxo-androsta-1,4-diene-17-carboxylic acid methyl ester