The aza-analogues of 1,4-naphthoquinones are potent substrates and inhibitors of plasmodial thioredoxin and glutathione reductases and of human erythrocyte glutathione reductase
作者:Christophe Morin、Tatiana Besset、Jean-Claude Moutet、Martine Fayolle、Margit Brückner、Danièle Limosin、Katja Becker、Elisabeth Davioud-Charvet
DOI:10.1039/b802649c
日期:——
Various aza-analogues of 1,4-naphthoquinone and menadione were prepared and tested as inhibitors and substrates of the plasmodial thioredoxin and glutathione reductases as well as the human glutathione reductase. The replacement of one to two carbons at the phenyl ring of the 1,4-naphthoquinone core by one to two nitrogen atoms led to an increased oxidant character of the molecules in accordance with both the redox potential values and the substrate efficiencies. Compared to the 1,4-naphthoquinone and menadione, the quinoline-5,8-dione 1 and both quinoxaline-5,8-diones 5 and 6 behaved as the most efficient subversive substrates of the three NADPH-dependent disulfide reductases tested. Modulation of these parameters was observed by alkylation of the aza-naphthoquinone core.
制备并测试了 1,4萘醌和甲萘醌的各种杂环类似物,并将其作为质体硫氧还蛋白酶和谷胱甘肽还原酶以及人类谷胱甘肽还原酶的抑制剂和底物。根据氧化还原电位值和底物效率,将 1,4-萘醌核心苯基环上的一到两个碳原子替换为一到两个氮原子可增加分子的氧化特性。与 1,4-萘醌和甲萘醌相比,喹啉-5,8-二酮 1 以及喹喔啉-5,8-二酮 5 和 6 是所测试的三种 NADPH 依赖性二硫还原酶最有效的颠覆性底物。通过对氮杂萘醌核心进行烷基化,可以观察到这些参数的变化。