2-[(E)-(3,3-dimethylbutylidene)amino]acetic acid tert-butyl ester 、
(Z)-3-(3-chloro-phenyl)-2-(6-chloro-pyridin-3-yl)-acrylonitrile 、 、
三乙胺 以
1,2-二氯乙烷 为溶剂,
反应 18.0h,
以to give rac-(2R,3R,4R,5S)-3-(3-chloro-phenyl)-4-(6-chloro-pyridin-3-yl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid tert-butyl ester as a light yellow solid (0.13 g, 14%)的产率得到rac-(2R,3R,4R,5S)-3-(3-chloro-phenyl)-4-(6-chloro-pyridin-3-yl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid tert-butyl ester