(2R)-2-[[2-[1-[2-(3-methylbutoxy)naphthalen-1-yl]naphthalen-2-yl]oxyacetyl]amino]-6-[(2-methylpropan-2-yl)oxycarbonylamino]hexanoic acid 、
benzyl 2-(4-(3-amino-6-(3-[(2,3-dihydro-2,2,4,6,7-pentamethyl-2H-1-benzofuran-5-yl)sulfonyl]guanidino)-1-aza-2-oxohexan-1-yl)tetrahydro-2H-pyran-4-yl)acetate 在
1-羟基苯并三唑 、
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
乙腈 为溶剂,
反应 16.0h,
以85%的产率得到benzyl 2-(4-(((3R,6R)-3-(3-[(2,3-dihydro-2,2,4,6,7-pentamethyl-2H-1-benzofuran-5-yl)sulfonyl]guanidino)propyl)-6-(4-(tert-butoxycarbonylamino)butyl)-9-((S)-2'-(3-methylbutoxy)-1,1'-binaphth-2-yloxy)-1,4,7-triaza-2,5,8-trioxononan-1-yl)tetrahydro-2H-pyran-4-yl)acetate