(S)-N-[(1S,2S)-3-amino-1-(cyclohexyl-methyl)-2-hydroxypropyl]-α-[(R)-α-(3,3-dimethyl-2-oxo-butyl)hydrocinnamamido]imidazole-4propionamide hydrochloride 、
苯酐 在
silica gel 、
二氯甲烷 、
甲醇 、
氨 作用下,
以
乙腈 为溶剂,
反应 16.0h,
以whereby there were obtained 31 mg of (S)-N[(1S,2S)-1-(cyclohexylmethyl)-2-hydroxy-3-phthalimidopropyl]-α-[(R)-α-(3,3-dimethyl-2-oxobutyl)hydrocinnamamido]imidazole-4-propionamide as a foam, MS的产率得到(S)-N-[(1S.2S)-1-(cyclohexylmethyl)-2-hydroxy-3-phthalimidopropyl]-α-[(R)-α-(3,3-dimethyl-2-oxobutyl)hydrocinnamamido]imidazole-4-propionamide