N-((3,4-dichlorophenyl)(oxazol-5-yl)methyl)-2-(tetrahydro-2H-pyran-4-ylamino)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxamide 在
Chiral Tech IC column 作用下,
以
乙醇 、
正己烷 为溶剂,
以33%的产率得到(S)-N-((3,4-dichlorophenyl)(oxazol-5-yl)methyl)-2-(tetrahydro-2H-pyran-4-ylamino)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxamide