(1R,2S,5S)-methyl 3-((S)-2-amino-3,3-dimethylbutanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxylate hydrochloride 、
(2S)-1-tert-butylsulfanyl-2-isocyanato-2,4-dimethylpentane 在
N,N-二异丙基乙胺 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 1.2h,
生成 methyl (1R,2S,5S)-3-[(2S)-2-[[(2S)-1-tert-butylsulfanyl-2,4-dimethylpentan-2-yl]carbamoylamino]-3,3-dimethylbutanoyl]-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxylate