3-bromo-1,5-bis(2-trimethylsilylethoxymethyl)-1,5-dihydropyrrolo[2,3-d]pyridazin-4-one 、
2-chloro-3-iodo-1-(2-trimethylsilylethoxymethyl)-1,5-dihydropyrrolo[2,3-d]pyridazin-4-one 、
4-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)-1-([2-(三甲基甲硅烷基)乙氧基]甲基)-1H-吡唑 、
苯硼酸 以respectively, whereby 166 mg of the title compound was obtained as a slightly yellowish oil的产率得到1,5-bis(2-trimethylsilylethoxymethyl)-3-[1-(2-trimethylsilylethoxymethyl)-4-pyrazolyl]-1,5-dihydropyrrolo-[2,3-d]pyridazin-4-one