4-chloro-5-<4-(2-methoxyphenoxyethyl)-1-piperazinyl>-3(2H)-pyridazinone 、
4-chloro-5-(4-methyl-piperazin-1-yl)-2-(5-chloropentyl)-pyridazin-3(2H)-one 在
potassium carbonate 作用下,
以
丙酮 为溶剂,
以50%的产率得到4-Chloro-2-[5-[5-chloro-4-[4-[2-(2-methoxyphenoxy)ethyl]piperazin-1-yl]-6-oxopyridazin-1-yl]pentyl]-5-(4-methylpiperazin-1-yl)pyridazin-3-one