t-Butyl 4-[1-(2-butynyl)-5-ethoxycarbonyl-4-formyl-1H-imidazol-2-yl]piperazine-1-carboxylate 、
甲基肼 在
silica gel 作用下,
以
乙醇 为溶剂,
反应 29.0h,
以Thus, 0.035 g of the title compound was obtained from the fraction的产率得到t-butyl 4-[1-(2-butynyl)-6-methyl-7-oxo-6,7-dihydro-1H-imidazo[4,5-d]pyridazin-2-yl]piperazine-1-carboxylate