Pharmacophore elucidation and molecular docking studies on 5-phenyl-1-(3-pyridyl)-1H-1,2,4-triazole-3-carboxylic acid derivatives as COX-2 inhibitors

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Abstract

A set of 5-phenyl-1-(3-pyridyl)-1H-1,2,4-triazole-3-carboxylic acid derivatives (16-32) showing anti-inflammatory activity was analyzed using a three-dimensional qualitative structure-selectivity relationship (3D QSSR) method. The CatalystHipHop approach was used to generate a pharmacophore model for cyclooxygenase-2 (COX-2) inhibitors based on a training set of 15 active inhibitors (1-15). The degree of fitting of the test set compounds (16-32) to the generated hypothetical model revealed a qualitative measure of the more or less selective COX-2 inhibition of these compounds. The results indicate that most derivatives (16, 18, 20-25, and 30-32) are able to effectively satisfy the proposed pharmacophore geometry using energy accessible conformers (E conf 20 kcal/mol). In addition, the triazole derivatives (16-32) were docked into COX-1 and COX-2 X-ray structures, using the program GOLD. Based on the docking results it is suggested that several of these novel triazole derivatives are active COX inhibitors with a significant preference for COX-2. In principle, this work presents an interesting, comprehensive approach to theoretically predict the mode of action of compounds that showed anti-inflammatory activity in an in vivo model. © Lindner et al.

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Lindner, M., Sippl, W., & Radwan, A. A. (2010). Pharmacophore elucidation and molecular docking studies on 5-phenyl-1-(3-pyridyl)-1H-1,2,4-triazole-3-carboxylic acid derivatives as COX-2 inhibitors. Scientia Pharmaceutica, 78(2), 195–214. https://doi.org/10.3797/scipharm.0912-19

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