3-(3-(3,5-dimethyl-1H-pyrazol-4-yl)propoxy)-5-(pent-4-yn-1-yloxy)benzoic acid 、
tert-butyl ((14S,20S)-1-azido-20-((4-methyl-2-oxo-2H-chromen-7-yl)carbamoyl)-12,15,18-trioxo-14-(3-(3-((2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-yl)sulfonyl)guanidino)propyl)-3,6,9-trioxa-13,16,19-triazatetracosan-24-yl)carbamate 在
copper(l) iodide 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以39%的产率得到3-(3-(1-((10S,16S)-2,2-dimethyl-10-((4-methyl-2-oxo-2H-chromen-7-yl)carbamoyl)-4,12,15,18-tetraoxo-16-(3-(3-((2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-yl)sulfonyl)guanidino)propyl)-3,21,24,27-tetraoxa-5,11,14,17-tetraazanonacosan-29-yl)-1H-1,2,3-triazol-4-yl)propoxy)-5-(3-(3,5-dimethyl-1H-pyrazol-4-yl)propoxy)benzoic acid