Preparation and in vitro antioxidant activity of some novel flavone analogues bearing piperazine moiety
作者:Paweł Berczyński、Aleksandra Kładna、Oya Bozdağ Dündar、Hatice Nehir Murat、Elmas Sarı、Irena Kruk、Hassan Y. Aboul-Enein
DOI:10.1016/j.bioorg.2019.103513
日期:2020.1
measured as trolox equivalents, ranging from 209.6 ± 6.1 to 391.1 ± 8.2 µM TE/g; the TAC values were in ranges from 10.8 ± 0.5 to 49.5 ± 0.5 µM TE/g being higher than that of dicloxacillin (241.0 ± 16.5 and 9.73 ± 0.8 µM TE/g, respectively), but lower than ascorbic acid, BHT, doxycycline, and medicinal plants. Best antioxidant activities were found for the piperazinyl analogues with methoxy group on phenyl
背景合成了一系列八种含有不同取代基哌嗪链的新黄酮衍生物,并确定了它们的结构。方法使用超氧阴离子自由基,羟基自由基,2,2-二苯基-1-吡啶并肼基,2,2'-叠氮基二(3-乙基苯并噻唑啉磺酸盐)自由基阳离子(ABTS +)清除(作为测量方法)来评估其抗自由基和抗氧化活性。总抗氧化剂状态(TAS),三价铁还原抗氧化剂(TAC)和过氧化氢分解。将合成化合物的抗氧化活性与标准抗氧化剂trolox,抗坏血酸,丁基化羟基甲苯(BHT)作为阳性对照,参考抗生素(多西环素,双氯西林)和药用植物(薄荷脑(Menthae piperita),水仙(Cistus incanus))进行了比较。化学发光,分光光度法,电子自旋共振(ESR)光谱结合5,5-二甲基-1-吡咯啉-1-氧化物(DMPO)作为自旋阱是测量技术。结果结果表明,所合成的化合物显示出较弱的活性,尽管具有广泛的抗自由基和抗氧化活性。TAS值以trolox当量测量,范围为209