CoMFA and CoMSIA 3D-QSAR studies on quionolone caroxylic acid derivatives inhibitors of HIV-1 integrase.

A series of quionolone caroxylic acid derivatives inhibitors of HIV-1 integrase were subjected to three-dimensional quantitative structure-activity relationship (3D-QSAR) studies using the comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) approaches. The CoMFA model includes steric and electrostatic fields for the training set with the cross-validated q(2) value of 0.67 and the non-cross-validated r(2) value of 0.98. The cross-validated q(2) value of CoMSIA Model is 0.76 and the non-cross-vaildated r(2) value is 0.99. From the cross-validated results, it can be seen that the CoMSIA model has a better predictive ability than CoMFA model. Based on the above results, the CoMFA and CoMSIA analyses can be used in the design of more potent HIV-1 integrase inhibitors. Copyright (c) 2010 Elsevier Masson SAS. All rights reserved.