3-(aminomethyl)-4-methoxy-6-methylpyridin-2(1H)-one hydrochloride 、
7-(1-(dimethylamino)ethyl)-6-methylpyrrolo[1,2-b]pyridazine-5-carboxylic acid 在
(1-cyano-2-ethoxy-2-oxoethylidenaminooxy)dimethylaminomorpholinocarbenium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以8.5%的产率得到7-(1-(dimethylamino)ethyl)-N-((4-methoxy-6-methyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-6-methylpyrrolo[1,2-b]pyridazine-5-carboxamide