Exploring 3D-QSAR for Ketolide Derivatives as Antibacterial Agents Using CoMFA and CoMSIA

Comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) were performed on a series of ketolide derivatives as antibacterial agents. The 3D-QSAR models resulted from 42 molecules gave r(cv)(2) values of 0.699 and 0.630, r(2) values of 0.945 and 0.925. The predictive ability of CoMFA and CoMSIA, determined using a test set of 10 compounds, gave predictive correlation coefficients of 0.849 and 0.786, respectively. The results provided insight for predictive and diagnostic aspects of ketolide derivatives for better antibacterial activity.