tert-butyl 4-((2S,3R,4R)-1-acetyl-4-((4-(methoxycarbonyl)phenyl)amino)-2,3-dimethyl-1,2,3,4-tetrahydroquinolin-6-yl)piperazine-1-carboxylate 在
lithium hydroxide 、 sodium hydroxide 作用下,
以
四氢呋喃 为溶剂,
反应 26.5h,
以75 g的产率得到tert-butyl 4-((2S,3R,4R)-1-acetyl-4-((4-(methoxycarbonyl)phenyl)amino)-2,3-dimethyl-1,2,3,4-tetrahydroquinolin-6-yl)piperazine-1-carboxylic acid