6-(trifluoromethyl)pyridazine-4-carboxylic acid 、
2-((5-Amino-5'-fluoro-2-methyl-6'-morpholino-[3,4'-bipyridin]-2'-yl)amino)ethanol 、
N,N-二异丙基乙胺 、
1-丙基磷酸酐 在
silica gel 作用下,
以
二氯甲烷 为溶剂,
以to give N-(3′-fluoro-6′-((2-hydroxyethyl)amino)-2-methyl-2′-morpholino-[3,4′-bipyridin]-5-yl)-6-(trifluoromethyl)pyridazine-4-carboxamide in 8% yield的产率得到N-(3'-fluoro-6'-((2-hydroxyethyl)amino)-2-methyl-2'-morpholino-[3,4'-bipyridin]-5-yl)-6-(trifluoromethyl)pyridazine-4-carboxamide