aug-MIA-QSAR modeling of antimicrobial activities and design of multi-target anilide derivatives |
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Authors: | Cleiton A. Nunes Matheus P. Freitas |
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Affiliation: | 1. Department of Food Science, Federal University of Lavras, P.O. Box 3037, 37200-000 Lavras, MG, Brazil;2. Department of Chemistry, Federal University of Lavras, P.O. Box 3037, 37200-000 Lavras, MG, Brazil |
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Abstract: | The antibacterial activity against Bacillus subtilis, Staphylococcus aureus and Escherichia coli, as well as the antifungal activity against Aspergillus niger of a series of anilide derivatives have been modeled using augmented multivariate image analysis applied to quantitative structure–activity relationship (aug-MIA-QSAR). This QSAR approach is based on 2D molecular shape, as well as atomic sizes and colors to encode chemical, physical and biological properties. Predictive models with r2 from 0.65 to 0.83 were used to estimate the antimicrobial activities of novel anilide analogs, which were built from the combination of substructures of the most active antimicrobial compounds along the series. Given the synergistic effect of different substituents to provide new molecules, promising compounds were proposed, highlighting a considerable multi-antimicrobial activity. |
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Keywords: | aug-MIA-QSAR Anilide derivatives Antibacterial activity Antifungal activity Chemometrics |
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