2-(trimethylsilyl)ethyl 2-(benzyloxy)-N-[(benzyloxy)carbonyl]-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-L-phenylalaninate 、 benzyl 2-(benzyloxy)-N-(tert-butoxycarbonyl)-5-iodo-L-phenylalanyl-L-phenylalaninate 在
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride caesium carbonate 作用下,
以
二甲基亚砜 为溶剂,
反应 24.67h,
以29%的产率得到2-(trimethylsilyl)ethyl 2-(S)-benzyloxycarbonylamino-3-[3'[-2-[tert-butoxycarbonylamino(3-amino-[1-(S)-benzyloxy-1-oxo-2-phenylethyl]-3-oxopropyl)]-4,4'-bis(benzyloxy)-1,1'-biphenyl-3-yl]]propanoate