(1R,2S,5S)-N-(4-amino-1-cyclopropyl-3,4-dioxobutan-2-yl)-3-[(2S)-2-amino-3,3-dimethylbutanoyl]-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamide;hydrochloride 、
(1-isocyanatocyclohexyl)methyl benzoate 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
生成 [1-[[(1S)-1-[(1S,4S,5R)-4-[[3-amino-1-(cyclopropylmethyl)-2,3-dioxo-propyl]carbamoyl]-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-3-carbonyl]-2,2-dimethyl-propyl]carbamoylamino]cyclohexyl]methyl benzoate