6-(2-ethyl-8-methoxyquinolin-5-yl)-4,5-dihydro-5-methyl-3-(2H)-pyridazinone 在
Daicel CHIRALPAK IA column 作用下,
以
正己烷 、
乙酸乙酯 为溶剂,
生成 (+)-6-(2-ethyl-8-methoxyquinolin-5-yl)-4,5-dihydro-5-methyl-3-(2H)-pyridazinone 、 (+)-6-(2-ethyl-8-methoxyquinolin-5-yl)-4,5-dihydro-5-methyl-3-(2H)-pyridazinone