Synthesis and ESR study of new dihydroxamic acid siderophores S as scavengers of hydroxyl radicals
作者:M.V.D. Nguyen、L. Nicolas、A. Gaudemer、M.E. Brik
DOI:10.1016/s0960-894x(97)10219-0
日期:1998.2
Five new dihydroxamic acid ligands (L) (8, 10a, 10b, 10c and 13) have been synthesised and characterised as potential chelating agents for iron (Fe3+). The log stability constants of Fe2L3 and FeL+ from Fe3+ and L2- have been estimated to be log beta = 61.96 and log beta 1 = 22.8 respectively. The ability of these compounds to scavenge hydroxyl radicals (oOH) responsible for cell damage have been studied
已经合成了五个新的二氢氧肟酸配体(L)(8、10a,10b,10c和13),并将其表征为铁(Fe3 +)的潜在螯合剂。来自Fe3 +和L2-的Fe2L3和FeL +的对数稳定常数估计分别为log beta = 61.96和log beta 1 = 22.8。这些化合物清除负责细胞损伤的羟基自由基(oOH)的能力已通过esr光谱研究。