(2R,4S)-1-(t-butoxycarbonyl)-2-(methoxycarbonyl)piperidine-4-carboxylic acid 在
N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 、 lithium hydroxide 作用下,
以
二氯甲烷 为溶剂,
生成 (2R,4S)-1-[(tert-butoxy)carbonyl]-4-(pyrrolidine-1-carbonyl)piperidine-2-carboxylic acid