哌啶 、
methyl [(3S)-6-{[(3S)-7-bromo-2,3-dihydro-1-benzofuran-3-yl](trifluoroacetyl)amino}-2,3-dihydro-1-benzofuran-3-yl]acetate 在
tris-(dibenzylideneacetone)dipalladium(0) 、 (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl
caesium carbonate 作用下,
以
甲苯 为溶剂,
以33%的产率得到methyl [(3S)-6-{[(3S)-7-(piperidin-1-yl)-2,3-dihydro-1-benzofuran-3-yl](trifluoroacetyl)amino}-2,3-dihydro-1-benzofuran-3-yl]acetate