(S)-1-((S)-2-(5-azidopentanamido)-3-(4-chlorophenyl)propanoyl)-N-methyl-N-((S)-4-methyl-1-oxo-1-((2-oxo-2-(prop-2-yn-1-ylamino)ethyl)amino)pentan-2-yl)pyrrolidine-2-carboxamide 在
tetrakis(acetonitrile)copper(I)tetrafluoroborate 、
三[(1-苄基-1H-1,2,3-三唑-4-基)甲基]胺 作用下,
以
二氯甲烷 为溶剂,
反应 12.0h,
以72%的产率得到(8S,14S,17S)-8-[(4-chlorophenyl)methyl]-16-methyl-17-(2-methylpropyl)-1,7,10,16,19,22,25,26-octazatricyclo[22.2.1.010,14]heptacosa-24(27),25-diene-6,9,15,18,21-pentone