Potentiometric, spectrophotometric, and 1H NMR study of four desferrioxamine B derivatives and their ferric complexes
作者:Zhiguo Hou、Donald W. Whisenhunt、Jide Xu、Kenneth N. Raymond
DOI:10.1021/ja00082a003
日期:1994.2
1-hydroxy-2-oxopyridin-6-yl)carbonyl)desferrioxamine B (DFOHOPO)] as well as their ferric complexes have been studied by potentiomeric, spectrophotomeric, and proton NMR titrations. All four DFO derivatives form six-coordinate 1:1 ferric complexes in aqueous solution. The catecholate derivatives are trishydroxamate complexes at low pH
一种新的八齿对苯二甲酰胺去铁胺 B (DFO) 衍生物 N-(2,3-dihydroxy-4-(methylamido)benzoyl) desferrioxamine B (DFOMTA),已被制备。该配体和其他三种 DFO 衍生物 [N-(2,3-二羟基苯甲酰基)去铁胺 B (DFOCAM)、N-(2,3-二羟基-4-羧基苯甲酰基)去铁胺 B (DFO-CAMC) 和 N-((1 ,2-二氢-1-羟基-2-氧代吡啶-6-基)羰基)去铁胺 B (DFOHOPO)] 以及它们的三价铁配合物已经通过电位滴定、分光光度滴定和质子 NMR 滴定进行了研究。所有四种 DFO 衍生物都在水溶液中形成六配位 1:1 的三价铁配合物。儿茶酚酸酯衍生物是低 pH 值下的三异羟肟酸酯复合物