作者:Maria Matos、Francisco Mura、Saleta Vazquez-Rodriguez、Fernanda Borges、Lourdes Santana、Eugenio Uriarte、Claudio Olea-Azar
DOI:10.3390/molecules20023290
日期:——
In the present work we synthesized a selected series of hydroxylated 3-phenylcoumarins 5–8, with the aim of evaluating in detail their antioxidant properties. From an in depth study of the antioxidant capacity data (ORAC-FL, ESR, CV and ROS inhibition) it was concluded that these derivatives are very good antioxidants, with very interesting profiles in all the performed assays. The study of the effect of the number and position of the hydroxyl groups on the antioxidant activity was the principal aim of this study. In particular, 7-hydroxy-3-(3'-hydroxy)phenylcoumarin (8) proved to be the most active and effective antioxidant of the selected series in four of the performed assays (ORAC-FL = 11.8, capacity of scavenging hydroxyl radicals = 54%, Trolox index = 2.33 and AI30 index = 0.18). However, the presence of two hydroxyl groups on this molecule did not increase greatly the activity profile. Theoretical evaluation of ADME properties of all the derivatives was also carried out. All the compounds can act as potential candidates for preventing or minimizing the free radical overproduction in oxidative-stress related diseases. These preliminary findings encourage us to perform a future structural optimization of this family of compounds.
在本研究中,我们合成了一系列选择性的羟基化3-苯基香豆素5-8,旨在详细评估其抗氧化特性。通过对抗氧化能力数据(ORAC-FL、ESR、CV和ROS抑制)的深入研究,我们得出结论,这些衍生物是非常好的抗氧化剂,在所有进行的实验中表现出非常有趣的特征。研究羟基数量和位置对抗氧化活性的影响是本研究的主要目标。特别是,7-羟基-3-(3'-羟基)苯基香豆素(8)被证明是所选系列中在四项实验中最活跃和有效的抗氧化剂(ORAC-FL=11.8,羟基自由基清除能力=54%,Trolox指数=2.33,AI30指数=0.18)。然而,这种分子上两个羟基的存在并没有显著提高活性特征。还对所有衍生物的ADME特性进行了理论评估。所有化合物都可以作为潜在候选者,以防止或减少与氧化应激相关疾病中自由基的过量产生。这些初步发现鼓励我们对这一类化合物进行未来的结构优化。