【摘要】 制得了系列壳聚糖嫁接的大环席夫碱Cu(Ⅱ)化合物(CTS-Ln-Cu(Ⅱ).通过元素分析、1 H NMR、FT-IR、MS及扫描电镜(SEM)等手段对上述化合物的结构和组成进行了表征.并采用邻苯三酚自氧化法测定了它们的抗氧活性.结果表明,经过嫁接后均具有良好的抗氧活性,其IC50值分别为:15.81,18.82,21.44和19.33×10-3 g.L-1.更多还原

【Abstract】 A serial of the chitosa grafted with Cu(Ⅱ)-complexes(CTS-Ln-Cu(Ⅱ))macrocyclic Schiff base have been synthesized and characterized by elemental analysis,1H NMR,IR,MS spectra and scanning electron micrograph(SEM).The activity of mimicking superoxide dismutase of the complexes was determined by autoxidation of 1,2,3-benzenetriol.It was found that the the chitosa grafted with macrocyclic Schiff base complexes(CTS-Ln-Cu(Ⅱ)) had good antioxidant activity,and with IC50 values of 15.81,18.82,21.44 and 19.33×10-3 g·L-1,respectively.更多还原