(S)-1-(tert-butoxycarbonyl)-α-[(S)-α-[(tert-butylsulphonyl)methyl]hydrocinnamamido]imidazole-4-propionic acid 、 (1S,2R,3S)-3-amino-4-cyclohexyl-1-cyclopropyl-butane-1,2-diol 、
N,N'-二环己基碳二亚胺 在
N-羟基丁二酰亚胺 N,N-二环己脲 、
水 、
甲醇 作用下,
以
乙酸乙酯 为溶剂,
反应 18.17h,
以98.8 g (86%) of t-butyl 4-[(S)-2-[(S)-2-t-butanesulphonylmethyl-3-phenylpropionylamino]-2-[(1S,2R,3S)-1-cyclohexylmethyl-3-cyclopropyl-2,3-dihydroxy-propylcarbamoyl]ethyl]-1H-imidazole-1-carboxylate were obtained的产率得到(S)-α-[(S)-α-[(tert-butylsulphonyl)methyl]hydrocinnamamido]-N-[(1S,2R,3S)-1-(cyclohexylmethyl)-3-cyclopropyl-2,3-dihydroxypropyl]-1-Boc-imidazole-4-propionamide