Redox-active metal(II) complexes of sterically hindered phenolic ligands: Antibacterial activity and reduction of cytochrome c
作者:N.V. Loginova、Y.V. Faletrov、T.V. Koval’chuk、N.P. Osipovich、G.I. Polozov、A.A. Chernyavskaya、R.A. Zheldakova、I.I. Azarko、A.T. Gres、O.I. Shadyro、V.M. Shkumatov
DOI:10.1016/j.poly.2010.02.007
日期:2010.4
follow the order: (1) Сu(L I ) 2 > Сo(L I ) 2 > Fe(L I ) 2 ⩾ Mn(L I ) 2 > HL I ; (2) Сu(L II ) 2 > Сo(L II ) 2 > HL II > Fe(L II ) 2 ⩾ Mn(L II ) 2 ; and their reducing ability (determined electrochemically) followed the same order. Spectrophotometric investigation was carried out in order to estimate the rate of the reduction of bovine heart сytochrome c with the ligands and their metal(II) complexes
摘要4,6-二叔丁基-3 [(2-羟乙基)磺酰基] -1,2-二羟苯(HL I)和进行了2-氨基-4,6-二叔丁基苯酚(HL II)。与Cu(II)配合物和三种常见抗生素相比,对Co(II),Fe(II)和Mn(II)配合物的抗菌活性进行了评估。发现遵循以下顺序:(1)Сu(LI)2>Сo(LI)2> Fe(LI)2⩾Mn(LI)2> HL I;(2)Сu(L II)2>Сo(L II)2> HL II> Fe(L II)2⩾Mn(L II)2; 和它们的还原能力(由电化学确定)遵循相同的顺序。进行分光光度法研究,以估计配体及其金属(II)配合物对牛心脏细胞色素c的还原率。NADPH:发现细胞色素P450还原酶可增加HL I和HL II配体对细胞色素c还原的速率,而肾上腺素与NAD(P)H结合:肾上腺素还原酶对其没有实质性影响。结果表明,用这些化合物还原乙基色素c不仅与它们氧化或电离的能力有关。