6-chloro-N-methyl-N-(2,2,6,6-tetramethylpiperidin-4-yl)pyridazin-3-amine   、                                                                                      
(2-(benzyloxy)-6-methoxyphenyl)boronic acid                                                                                                                                                                                                                                                                                                          以6-(2-(Benzyloxy)-6-methoxyphenyl)-N-methyl-N-(2,2,6,6-tetramethylpiperidin-4-yl)pyridazin-3-amine was obtained as a beige solid (358 mg, 56% yield)的产率得到6-(2-(benzyloxy)-6-methoxyphenyl)-N-methyl-N-(2,2,6,6-tetramethylpiperidin-4-yl)pyridazin-3-amine