波谱学杂志 ›› 1998, Vol. 15 ›› Issue (2): 123-130.

• 研究论文 • 上一篇    下一篇

多甘醇-磷酸酯-EDTA酯共聚物铁(Ⅲ)配合物的合成和磁共振成象增强作用

俞开潮1,2, 冯继文1, 胡红兵1, 卢广1, 卓仁禧2, 李丽云1, 叶朝辉1   

  1. 1 中国科学院武汉物理与数学研究所, 武汉 430071;
    2 武汉大学化学学院, 武汉 430072
  • 收稿日期:1997-11-03 修回日期:1998-02-17 出版日期:1998-04-05 发布日期:2018-01-13
  • 作者简介:俞开潮,男,42岁,博士
  • 基金资助:
    波谱与原子分子物理国家重点实验室基金资助项目

SYNTHESIS AND MRI ENHANCEMENT OF IRON(Ⅲ) COMPLEXES WITH PHOSPHATEEDTA-POLYGLYCOL TERPOLYMER LIGANDS

Yu Kaichao1,2, Feng Jiwen1, Hu hongbing1, Lu Guang1, Zhuo Renxi2, Li liyun1, Ye Chaohui1   

  1. 1 Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071;
    2 School of Chemistry, Wuhan University. Wuhan 430072
  • Received:1997-11-03 Revised:1998-02-17 Online:1998-04-05 Published:2018-01-13

摘要: 通过乙二胺四乙酸双酸酐、二氯磷酸酯与多甘醇共缩聚,制得一系列三元共聚物配体.用配体与三氯化铁反应,得到相应的铁配合物.表征了配体和配合物的化学结构,测试了配合物的纵向弛豫速率,并考察了配合物的急性毒性和磁共振成象增强作用.

关键词: 磁共振成象, 铁配合物, 大分子造影剂, 弛豫效能, 急性毒性

Abstract: A new series of polyglycol-phosphate-EDTA ester terpolymer ligands were synthesized by the copoly merization of ethylene diamine tetraacetic dianhydride(EDTAA), ethyl phosphodichloridate (or methyl phosphodichloridate, n-butyl phosphodichloridate) with diethylene glycol or triethyleneglycol, and their Fe(Ⅲ) complexes were prepared. The structures of these new ligands and Fe (Ⅲ) complexes were comfirmed by 1H NMR, IR and elemental a nalysis. The longitudinal relaxation measurements on these macromolecular complexes indicated that most of them have higher relaxivity as compared to Fe(Ⅲ)-EDTA. Moreover, the acute toxicity test using one of these Fe (Ⅲ) complexes was performed and no obvious toxicity was observed. Finally, T1-weighted contrast imaging of rat liver showed clear MRI enhancement after injection the new complex.

Key words: Magnetic resonance imaging, Fe (Ⅲ) complex, Macromolecular contrast agent, Relaxivity, Acute toxicity