2-(trimethylsilyl)ethyl 2-(benzyloxy)-N-[(benzyloxy)carbonyl]-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-L-phenylalaninate 、
benzyl 3-bromo-N-(tert-butoxycarbonyl)-6-fluoro-L-phenylalaninate 在
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride caesium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以10%的产率得到2-trimethylsilyl-ethyl (2S)-3-(3'-{(2S)-3-benzyloxy-2-[(tert-butoxycarbonyl)amino]-3-oxo-propyl}-4'-fluoro-4-hydroxy-biphenyl-3-yl)-2-{[(benzyloxy)carbonyl]amino}-propanoate