4’-(2-((6-((6-((3-(((2R,3R,4R,5S,6R)-3-acetamido-5-(((2S,3R,4S,5S,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-(((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-4-hydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)propyl)amino)-6-oxohexyl)amino)-6-oxohexyl)amino)-2-oxoethoxy)-[1,1‘-biphenyl]-3-carboxylic acid 、
benzyl 6-(6-(6-(6-aminohexanamido)hexanamido)hexanamido)hexanoate hydrochloride 在
三乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 1.0h,
以66%的产率得到benzyl 1-(4’-(2-((6-((6-((3-(((2R,3R,4R,5S,6R)-3-acetamido-5-(((2S,3R,4S,5S,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-(((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-4-hydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)propyl)amino)-6-oxohexyl)amino)-6-oxohexyl)amino)-2-oxoethoxy)-[1,1‘-biphenyl]-3-yl)-1,8,15,22-tetraoxo-2,9,16,23-tetraazanonacosan-29-oate