期刊
PHARMACEUTICALS
卷 16, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/ph16091326
关键词
coumarins; anti-inflammatory activity; anti-tubercular activity; SAR
Screening of previously synthesized 4-methyl-7-substituted coumarin derivatives revealed potential anti-inflammatory and anti-tubercular activities. Compounds 3o, 5f, 6c, and 7d exhibited the highest anti-inflammatory effects, while compounds 3k-n, 5b-d, 6d-f, 6k, 7a, and 7f showed potent anti-tubercular activity.
Four sets of previously synthesized 4-methyl-7-substituted coumarin derivatives were screened for their in vitro anti-inflammatory and anti-tubercular activities. The anti-inflammatory potential of 3a-t, 5a-o, 6a-n, and 7a-f synthesized compounds was evaluated by an anti-denaturation assay using diclofenac sodium as the reference standard. Evaluation of the anti-tuberculous activity of the mentioned compounds was performed by the Resazurin test method against four different TB strains using rifampicin and isoniazid as reference drugs. Based on the anti-inflammatory results, compounds 3o, 5f, 6c, and 7d proved to be the most active compounds in their respective series. Additionally, compounds 3k-n, 5b-d, 6d-f, 6k, 7a, and 7f were found to be the most potent anti-tuberculous agents. In fact, most of the screened compounds exhibited promising activity profiles compared to the respective standard drugs. The structure-activity connections revealed a few intriguing aspects, indicating that the presence of electron-donating and nitrogen-rich fragments boost the anti-inflammatory effects of the examined compounds. However, the presence of electron-withdrawing substituents was required to boost the anti-tubercular activity of the evaluated compounds.
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