(8S)-9-[(1R and 1S)-1-(2-fluorophenyl)ethyl]-2-(morpholin-4-yl)-8-(trifluoromethyl)-6,7,8,9-tetrahydro-4H-pyrimido[1,2-a]pyrimidin-4-one 在
Chiralpak AD 20 μm column 作用下,
以
甲醇 、
乙醇 、
正庚烷 为溶剂,
生成 (8S)-9-[(1R)-1-(2-fluorophenyl)ethyl]-2-(morpholin-4-yl)-8-(trifluoromethyl)-6,7,8,9-tetrahydro-4H-pyrimido[1,2-a]pyrimidin-4-one 、 (8S)-9-[(1S)-1-(2-fluorophenyl)ethyl]-2-(morpholin-4-yl)-8-(trifluoromethyl)-6,7,8,9-tetrahydro-4H-pyrimido[1,2-a]pyrimidin-4-one