Synthesis and evaluation of 1,4-naphthoquinone ether derivatives as<i>Sm</i>TGR inhibitors and new anti-schistosomal drugs
作者:Laure Johann、Didier Belorgey、Hsin-Hung Huang、Latasha Day、Matthieu Chessé、Katja Becker、David L. Williams、Elisabeth Davioud-Charvet
DOI:10.1111/febs.13359
日期:2015.8
3-phenoxymethyl menadiones as a novel anti-schistosomal chemical series. These newly synthesized compounds (1-7) and their difluoromethylmenadione counterparts (8, 9) were found to be potent and specific inhibitors of Schistosoma mansoni thioredoxin-glutathione reductase (SmTGR), which has been identified as a potential target for anti-schistosomal drugs. The compounds were also tested in enzymic assays
关于2-甲基-1,4-萘醌(或甲萘醌)衍生物的化学和作用机理的研究表明,3-苯氧基甲基甲萘醌是一种新型的抗血吸虫病化学系列。这些新合成的化合物(1-7)及其对应的二氟甲基甲二酮(8、9)被认为是曼氏血吸虫硫氧还蛋白-谷胱甘肽还原酶(SmTGR)的有效抑制剂和特异性抑制剂,已被确定为抗血吸虫病药物的潜在靶标。还使用人黄素酶(即谷胱甘肽还原酶(hGR)和硒依赖性人硫氧还蛋白还原酶(hTrxR))在酶法测定中测试了化合物,以评估抑制的特异性。结构-活性关系以及物理和电化学研究表明,与hGR和hTrxR酶相比,3-苯氧基甲基甲萘醌具有选择性抑制SmTGR的潜力,特别是那些带有α-氟酚甲基醚部分的酶,这种酶可以改善抗-血吸虫作用。此外,(取代的苯氧基)甲基甲萘醌衍生物(7)显示出时间依赖性SmTGR失活,与SmTGR的非生产性NADPH依赖性氧化还原循环相关,并且在离体培养的蠕虫中具有强大的抗血吸虫