(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