(3S)-N-(indan-5-yl)-3-methyl-4-[1-methyl-6-(methylsulfonyl)pyrazolo[3,4-d]pyrimidin-4-yl]piperazine-1-carboxamide   、                                                                                      
sodium methylate                                                                                                                                                              在
                                                                                                                                                                                 silica gel   、                                                                                                  cyclohexane, ethyl acetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以to provide the title compound (25 mg, 56%) as a white solid的产率得到(3S)-N-(indan-5-yl)-4-(6-methoxy-1-methylpyrazolo[3,4-d]pyrimidin-4-yl)-3-methylpiperazine-1-carboxamide