4-硝基苯基 N-(叔丁氧羰基)-L-亮氨酸酯 、
(S)-[(2S,3S,4S)-2-Amino-4-hydroxy-4-(5-hydroxy-pyridin-2-yl)-3-methyl-butyrylamino]-[(2R,3S,4R,5R)-5-(4-formyl-2-oxo-2,3-dihydro-imidazol-1-yl)-3,4-dihydroxy-tetrahydro-furan-2-yl]-acetic acid; compound with trifluoro-acetic acid 在
N-甲基吗啉 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 30.0h,
生成 (S)-[(2S,3S,4S)-2-((S)-2-tert-Butoxycarbonylamino-4-methyl-pentanoylamino)-4-hydroxy-4-(5-hydroxy-pyridin-2-yl)-3-methyl-butyrylamino]-[(2R,3S,4R,5R)-5-(4-formyl-2-oxo-2,3-dihydro-imidazol-1-yl)-3,4-dihydroxy-tetrahydro-furan-2-yl]-acetic acid