benzyl 4-{[2-(2-aminoethoxy)ethyl]amino}-4-oxobutanoate 、 (S)-3-(carboxymethyl)-7-(octylcarbamoyl)-5,9-dioxo-15-(((2R,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-13-oxa-3,6,10-triazapentadecan-1-oic acid 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 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 dibenzyl 14-(2-(((S)-1-(octylamino)-1,4-dioxo-4-((2-(2-(((2R,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)ethoxy)ethyl)amino)butan-2-yl)amino)-2-oxoethyl)-4,12,16,24-tetraoxo-8,20-dioxa-5,11,14,17,23-pentaazaheptacosane-1,27-dioate