聚合甲醛   、                                                                                      N-(1-ethyl-piperidin-4-yl)-N'-[6-(1,4,6,7-tetrahydro-imidazo[4,5-c]pyridin-5-yl)-9H-purin-2-yl]-benzene-1,4-diamine                                                                                                                                                              在
                                                                                                                                         
溶剂黄146                                                                                                                                                                                                                               三乙酰氧基硼氢化钠                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基乙酰胺                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                生成                                                 
N-(1-ethyl-piperidin-4-yl)-N-methyl-N'-[6-(1,4,6,7-tetrahydro-imidazo[4,5-c]pyridin-5-yl)-9H-purin-2-yl]-benzene-1 ,4-diamine