A convenient, novel approach for the synthesis of polyaza macrocyclic bifunctional chelating agents
作者:Anil Kumar Mishra、Karine Draillard、Alain Faivre-Chauvet、Jean François Gestin、Chantal Curtet、Jean-François Chatal
DOI:10.1016/0040-4039(96)01727-3
日期:1996.10
The convenient, synthetically useful bifunctional chelating agents, (10-p-aminobenzyl)-1,4,7,10-tetraazacyclododecane-1,4,7-triacetate (p-ABz-DO3A) 3 and (11-p-aminobenzyl)-1,4,8,11-tetraazacyclotetradecane-1,4,8-triacetate (p-ABz-TE3A) 6, were obtained by reaction of an ethyl bromoacetate with 1,4,7,10-tetraazacyclododecane and 1,4,8,11-tetraazacyclotetradecane followed by reaction with nitrobenzyl
方便,合成上有用的双功能螯合剂(10-对氨基苄基)-1,4,7,10-四氮杂环十二烷-1,4,7-三乙酸酯(p-ABz-DO3A)3和(11-对氨基苄基) -1,4,8,11-四氮杂环十四烷-1,4,8-三乙酸酯(p-ABz-TE3A)6是通过溴乙酸乙酯与1,4,7,10-四氮杂环十二烷和1,4的反应制得的8,11-四氮杂环十四烷,然后与硝基苄基溴反应。事实证明,该方法比文献中的任何方法更有效,因为从四氮杂大环化合物开始的两步合成序列的总产率为68%。