(2R,3R,6S)-6-[2-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-ethyl-2-hydroxymethyl-piperidine-1-carboxylic acid methyl ester 在
草酰氯 、
二甲基亚砜 、
三乙胺 作用下,
以
二氯甲烷 为溶剂,
生成 (2R,3R,6S)-6-[2-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-ethyl-2-formyl-piperidine-1-carboxylic acid methyl ester