4-(3,4-dichloro-phenyl)-1-[4-((S)-4-hydroxy-6-aza-spiro[2.5]oct-6-yl)-4-oxo-butyl]-3-methyl-piperazin-2-one 在
Reprosil Chiral NR 作用下,
以
乙醇 、
正庚烷 为溶剂,
以64%的产率得到(R)-4-(3,4-dichloro-phenyl)-1-[4-((S)-4-hydroxy-6-aza-spiro[2.5]oct-6-yl)-4-oxo-butyl]-3-methyl-piperazin-2-one