5-chloro-1-(2-{4-[2-(4-methanesulfonyl-phenylcarbamoyl)-phenyl]-piperazin-1-yl}-2-oxo-ethyl)-1H-indole-2-carboxylic acid ethyl ester                                                                                                                                                              在
                                                                                                                                                                                 solution   、                                                                                                  
盐酸   、                                                                                                  
水                                                                                                                                  作用下,
                                                                                                                以
                                                                                         Dioxane methanol water                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以to provide 0.025 g of 5-chloro-1-(2-{4-[2-(4-methanesulfonyl-phenylcarbamoyl)-phenyl]-piperazin-1-yl}-2-oxo-ethyl)-1H-indole-2-carboxylic acid as an off white powder的产率得到5-chloro-1-(2-{4-[2-(4-methanesulfonyl-phenylcarbamoyl)-phenyl]-piperazin-1-yl}-2-oxo-ethyl)-1H-indole-2-carboxylic acid