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- W2015814235 abstract "In the present study, a series of 179 quinoline and quinazoline heterocyclic analogues exhibiting inhibitory activity against Gastric (H+/K+)-ATPase were investigated using the comparative molecular field analysis (CoMFA) and comparative molecular similarity indices (CoMSIA) methods. Both the models exhibited good correlation between the calculated 3D-QSAR fields and the observed biological activity for the respective training set compounds. The most optimal CoMFA and CoMSIA models yielded significant leave-one-out cross-validation coefficient, q2 of 0.777, 0.744 and conventional cross-validation coefficient, r2 of 0.927, 0.914 respectively. The predictive ability of generated models was tested on a set of 52 compounds having broad range of activity. CoMFA and CoMSIA yielded predicted activities for test set compounds with rpred2 of 0.893 and 0.917 respectively. These validation tests not only revealed the robustness of the models but also demonstrated that for our models rpred2 based on the mean activity of test set compounds can accurately estimate external predictivity. The factors affecting activity were analyzed carefully according to standard coefficient contour maps of steric, electrostatic, hydrophobic, acceptor and donor fields derived from the CoMFA and CoMSIA. These contour plots identified several key features which explain the wide range of activities. The results obtained from models offer important structural insight into designing novel peptic-ulcer inhibitors prior to their synthesis." @default.
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- W2015814235 date "2008-10-01" @default.
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- W2015814235 title "Insight into the structural requirements of proton pump inhibitors based on CoMFA and CoMSIA studies" @default.
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- W2015814235 doi "https://doi.org/10.1016/j.jmgm.2008.04.012" @default.
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