(S)-2-bromo-N-(cyclopropyl(phenyl)methyl)ethanamide 、 1-cyclopropyl-3-methyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyridazin-4-one 在
potassium carbonate 作用下,
以
N-甲基吡咯烷酮 为溶剂,
反应 18.0h,
以59%的产率得到(S)-N-(cyclopropyl(phenyl)methyl)-2-(1-cyclopropyl-3-methyl-4-oxo-1,4-dihydro-5H-pyrazolo[3,4-d]pyridazin-5-yl)ethanamide