香豆素-4-乙酰苄肼类抗结核病药物的3D-QSAR研究  

QSAR studies of coumarin-4-acetic acid benzylidene hydrazides anti-tuberculosis drug using three-dimensional structure descriptors

作　　者：仝建波[1] 陈洋[1] 徐夏梦[1] 杜经武[1] 程芳玲[1] 

机构地区：[1]陕西科技大学化学与化工学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2012年第6期57-60,共4页Journal of Shaanxi University of Science & Technology

基　　金：陕西省教育厅专项科研计划项目(12JK0629;11JK0602);榆林市科技计划项目;国家自然科学基金项目(21275094);咸阳市科研计划项目(2011K09-09)(2012K06-13);陕西科技大学研究生创新基金项目

摘　　要：采用三维全息原子场作用矢量(3D-HoVAIF)对25个香豆素-4-乙酰苄肼类抗结核病药物进行定量构效关系(QSAR)研究.运用多元线性回归(MLR)和偏最小二乘回归(PLS)建模,同时采用内部及外部双重验证的办法对所得模型稳定性能进行了深入分析和检验.MLR建模和PLS建模的复相关系数(Rcum)、留一法交互校验复相关系数(QLOO)以及外部样本校验复相关系数(Qext)分别为0.926、0.819、0.805和0.919、0.828、0.836.结果表明,3D-HoVAIF能较好表征抗结核药物分子结构信息,所建QSAR模型具有良好稳定性和预测能力,为抗结核病药物的研发提供一定的理论基础.A newly developed three-dimensional holographic vector of atomic interaction field （3D-HoVAIF） was used to describe the chemical structures of 25 anti-tuberculosis drugs as coumarin-4-acetic acid benzylidene hydrazides. Here quantitative structure activity relation- ships （QSARs） model were built by multiple linear regression （MLR） and partial least square regression （PLS）. The estimation stability and generalization ability of the model was strictly analyzed by both internal and external validations. The correlation coefficients of es- tablished MLR model and PLS model （R_cum）, leave-one out cross-validation （Q）_LOO）, predic- ted values versus experimental ones of external samples （Q_ext） were 0. 926, 0. 819, 0. 805 and 0. 919, 0. 828, 0. 836, respectively. The results indicated that QSAR models had both favorable estimation stability and good prediction capabilities. Satisfactory results showed that 3D-HoVAIF could preferably express information related to biological activity of hydra- zide derivatives.

关 键 词：三维全息原子场作用矢量 香豆素-4-乙酰苄肼类抗结核病药物 定量构效关系 

分 类 号：O641[理学—物理化学]