(1R,3R)-3-amino-N-(4-((S)-4-(4-chlorophenyl)-4-hydroxy-3,3-dimethylpiperidin-1-yl)-2-methyl-4-oxobutan-2-yl)cyclopentanecarboxamide hydrochloride 、
乙酸酐 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
以46.5%的产率得到(1R,3R)-3-acetamido-N-(4-((S)-4-(4-chlorophenyl)-4-hydroxy-3,3-dimethylpiperidin-1-yl)-2-methyl-4-oxobutan-2-yl)cyclopentanecarboxamide