Boc-Phe-O-COO-isoBu 、
(S)-2-Amino-N-[(1S,2S)-1-cyclohexylmethyl-2-hydroxy-2-((R)-1-methyl-2-oxo-piperidin-3-yl)-ethyl]-3-[1-(2,4-dinitro-phenyl)-1H-imidazol-4-yl]-propionamide; compound with trifluoro-acetic acid 在
N-甲基吗啉 作用下,
以
乙酸乙酯 为溶剂,
生成 ((S)-1-{(S)-1-[(1S,2S)-1-Cyclohexylmethyl-2-hydroxy-2-((S)-1-methyl-2-oxo-piperidin-3-yl)-ethylcarbamoyl]-2-[1-(2,4-dinitro-phenyl)-1H-imidazol-4-yl]-ethylcarbamoyl}-2-phenyl-ethyl)-carbamic acid tert-butyl ester