4'-(4-acetamidobenzyl)-2,2-dimethyl-2,3-dihydro-5'H-spiro[chromene-4,2'-[1,4]oxazinan]-5'-one 在
Chiralpak IA chiral stationary phase 作用下,
生成
(R)-(+)-2,2-dimethyl-N-(4'-acetamidobenzyl)-4-spiromorpholone-chromane 、
(S)-(-)-2,2-dimethyl-N-(4'-acetamidobenzyl)-4-spiromorpholone-chromane