Abstract
In the present study, molecular modelling studies have been reported on a series of natural flavonoid derivatives to analyse structure activity relationship studies of MCF-7 inhibitors using comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA)-based QSAR methods. Eighty-four compounds were used as training set to establish the model and 20 compounds were used as external test set to validate these models. The generated models exhibited good statistical results such as q2, r2. CoMFA analysis yielded the q2 of 0.765 and r2 of 0.968 with five components. CoMSIA model generated using steric, electrostatic, hydrophobic, donor and acceptor fields with q2 value of 0.592 and r2 value of 0.932 with six components was found to be the optimal model among the various models generated. According to contour map results, we have recommended the critical sites for modification in structure which will be useful in designing potent compounds with improved activity.
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