多氮杂环多羧酸及其氮取代化合物因其特殊的螯合能力近年来得到了日益广泛的研究 ,多氮杂环烷多乙酸的合成及其应用研究报道较多 [1～ 3 ] ,而多氮杂环多丙酸及氮上带 3个碳原子以上取代基的化合物研究较少 ,随着氮原子上碳链的增长 ,此类化合物作为配体其硬度下降 ,有助于分离 Polyazacyclic polycarboxylic acids and their nitrogen-substituted compounds have been widely studied in recent years due to their special chelating ability. The synthesis and application of polyazamacane polyacetic acid have been reported more and more [1 ~ 3] Polyazacyclopropylacrylates and compounds with more than three carbon atoms on the nitrogen have been less studied. As the carbon chain on the nitrogen atom increases, the hardness of these compounds as a ligand decreases, helping to separate