2,2-dimethylcyclopropanecarbonyl chloride 、
6-(4-氨基苯基)-4,5-二氢-5-甲基-3(2H)-哒嗪酮 在
水 、
dimethylformamide hydrate 作用下,
以
四氢呋喃 为溶剂,
以giving 5.8 g (66% of theory) of 4,5-dihydro-6-[p-(2,2-dimethylcyclopropylcarbonylamino)-phenyl]-5-methyl-3(2H)-pyridazinone as colorless crystals的产率得到4,5-dihydro-6-[p-(2,2-dimethylcyclopropylcarbonylamino)-phenyl]-5-methyl-3(2H)-pyridazinone