4-[2-(1-tert-butoxycarbonylpiperidin-4-yl)ethoxy]-6-chloro-2-methanesulfonylpyrimidine-5-carboxylic acid allyl ester 、
sodium cyanide 在
四丁基溴化铵 crude material 、 silica gel 作用下,
以
二氯甲烷 、
水 为溶剂,
反应 0.5h,
以to give 4-[2-(1-tert-butoxycarbonylpiperidin-4-yl)ethoxy]-6-chloro-2-cyanopyrimidine-5-carboxylic acid allyl ester as colorless oil的产率得到4-[2-(1-tert-butoxycarbonylpiperidin-4-yl)ethoxy]-6-chloro-2-cyanopyrimidine-5-carboxylic acid allyl ester