6-(1-isopropyl-6-oxo-1,6-dihydro-3-pyridazinyl)-3-[(4-methoxybenzyl)amino]-5-phenyl-2-pyrazinecarboxylic acid 、 5-(1-isopropyl-6-oxo-1,6-dihydro-3-pyridazinyl)-3-[(4-methoxybenzyl)amino]-6-phenyl-2-pyrazinecarboxylic acid 在
silica gel 、
正己烷 、
乙酸乙酯 作用下,
以
邻二氯苯 为溶剂,
反应 5.0h,
以EtOAc (50:50 v/v) was obtained 2-isopropyl-6-{6-[(4-methoxybenzyl)amino]-3-phenyl-2-pyrazinyl}-3(2H)-pyridazinone as a solid (4.41 g)的产率得到2-isopropyl-6-{6-[(4-methoxybenzyl)amino]-3-phenyl-2-pyrazinyl}-3(2H)-pyridazinone