(1S,3R)-3-[((S)-2-tert-Butoxycarbonylamino-4-methyl-pentanoyl)-methyl-amino]-cyclopentanecarboxylic acid 在
哌啶 、
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
二氯甲烷 为溶剂,
反应 1.33h,
生成 (1S,3R)-3-{[(S)-2-({(1S,3R)-3-[((S)-2-tert-Butoxycarbonylamino-4-methyl-pentanoyl)-methyl-amino]-cyclopentanecarbonyl}-amino)-4-methyl-pentanoyl]-methyl-amino}-cyclopentanecarboxylic acid