6-Chloro-4-[6-(2-dimethylamino-1,1-dimethyl-ethoxy)-pyridazin-3-ylamino]-2-methyl-2H-pyridazin-3-one 、 potassium (2-(acetoxymethyl)-3-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)phenyl)trifluoroborate 在
bis(dibenzylideneacetone)-palladium
(0) 、
2-二环己基磷-2,4,6-三异丙基联苯 potassium phosphate 、 sodium hydroxide 作用下,
以
水 、
正丁醇 为溶剂,
以47%的产率得到6-tert-Butyl-2-(3-{5-[6-(2-dimethylamino-1,1-dimethyl-ethoxy)-pyridazin-3-ylamino]-1-methyl-6-oxo-1,6-dihydro-pyridazin-3-yl}-2-hydroxymethyl-phenyl)-8-fluoro-2H-phthalazin-1-one