1-(4-tert-Butyl-phenyl)-5-chloro-3-(4-chloro-3-trifluoromethyl-phenoxy)-1H-indole-2-carboxylic acid ethyl ester                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                以90%的产率得到1-(4-tert-Butyl-phenyl)-5-chloro-3-(4-chloro-3-trifluoromethyl-phenoxy)-1H-indole-2-carboxylic acid