Journal
PHARMACEUTICS
Volume 13, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/pharmaceutics13040440
Keywords
lipophilicity; NSAIDs; thin-layer chromatography; chemometric methods; stationary phases
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The study evaluated the lipophilicity of selected NSAIDs using experimental and calculation methods, proposing LogP values as descriptors. Data were obtained using thin-layer chromatography under various conditions and analyzed using chemometric approaches. The established models may have the potential to predict the biological activity of certain drugs, thus aiding in drug discovery processes.
Lipophilicity study of selected NSAIDs, the group of the bioactive compounds usually used in humans and animals medicine, with the use of experimental and calculation methods was evaluated. LogP values are proposed and compared as descriptors of the lipophilicity of eleven compounds (from oxicams and coxibs). Obtained data were designated by thin-layer chromatography (TLC) in various chromatographic conditions, with stationary phases with different properties. The mobile phase systems were prepared by mixing the respective amounts of water and organic modifier, methanol and acetone, in the range of 30 to 80% (v/v) in 5% increments. Retention parameters (R-F, R-M and R-M0) were calculated and statistically evaluated to establish correlations. All experimentally determined R-M0 values were compared with partition coefficients obtained by computational methods using linear regression analysis. Moreover, in order to extract information about the lipophilicity of compounds from large retention datasets, two chemometric approaches, namely principal component analysis (PCA) and cluster analysis (CA) were carried out. Established models of lipophilicity may have the potential to predict the biological activity of a number of drugs. The presented knowledge may also be of use during drug discovery processes, broadening the knowledge of potential ways to modify the physicochemical properties of chemical compounds.
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