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Chemometric modeling of free radical scavenging activity of flavone derivatives.

机译:黄酮衍生物自由基清除活性的化学计量统计学模拟。

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The present work deals with the chemometric modeling of antioxidant molecules belonging to the class of flavone derivatives employing the quantitative structure-activity relationship (QSAR) technique. A QSAR model was initially built based on the Fujita-Ban method with the training set molecules. Due to the inability of the Fujita-Ban type model to predict satisfactorily the activity of the test set molecules, further QSAR models were built using different chemometric tools (genetic function approximation, genetic partial least squares) with additional descriptors viz., topological, structural, spatial and quantum chemical ones. The statistically significant models thus developed suggest that hydroxy and methoxy substituents at certain specified positions of the A and B rings of the flavone moiety chiefly influence the antioxidant activity of these molecules.
机译:本工作涉及属于采用定量结构 - 活性关系(QSAR)技术的黄酮衍生物类的抗氧化分子的化学计量建模。 QSAR模型最初是基于富士塔禁令方法与训练集分子的构建。 由于Fujita-Ban类型模型预测测试集分子的活动,使用不同的化学计量工具(遗传功能近似,遗传偏见最小二乘)以及附加描述符,拓扑,结构性建造了进一步的QSAR模型。,拓扑,结构 ,空间和量子化学物质。 因此,统计学上显着的模型表明,黄酮部分A和B环的某些特定位置处的羟基和甲氧基取代基主要影响这些分子的抗氧化活性。

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