(2S,3S,4S,5S)-2,5-diamino-6-cyclohexyl-1-phenylhexane-3,4-diol bistrifluoroacetate 、 N-<
carbonyl>valine p-nitrophenyl ester 在
potassium carbonate 作用下,
以
四氢呋喃 为溶剂,
反应 20.0h,
以52%的产率得到(2s,2's)-N,N'-[(2s,3s,4s,5s)-1-Cyclohexyl-3,4-Dihydroxy-6-Phenylhexane-2,5-Diyl]bis[3-Methyl-2-({[methyl(Pyridin-2-Ylmethyl)amino]carbonyl}amino)butanamide]