(3R,4S)-4-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-3-(2,2-dimethyl-[1,3]dioxolan-4-yl)-piperidine-1-carboxylic acid tert-butyl ester 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
生成
(3R,4S)-3-(2,2-dimethyl-[1,3]dioxolan-4-yl)-4-(2-hydroxy-ethyl)-piperidine-1-carboxylic acid tert-butyl ester