(-)-Camphanic acid chloride 、
rac-2,2-dimethyl-1-<6-(naphthalen-2-yl)pyridin-2-yl>propanol 在
4-二甲氨基吡啶 吡啶 作用下,
以
二氯甲烷 为溶剂,
生成 (1S,4R)-7-Ethyl-4-methyl-3-oxo-2-oxa-bicyclo[2.2.1]heptane-1-carboxylic acid (S)-2,2-dimethyl-1-(6-naphthalen-2-yl-pyridin-2-yl)-propyl ester 、 (1S,4R)-7-Ethyl-4-methyl-3-oxo-2-oxa-bicyclo[2.2.1]heptane-1-carboxylic acid (R)-2,2-dimethyl-1-(6-naphthalen-2-yl-pyridin-2-yl)-propyl ester