期刊
LETTERS IN DRUG DESIGN & DISCOVERY
卷 20, 期 12, 页码 1994-2002出版社
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1570180819666220819151002
关键词
Isoxazole; anticancer; doxorubicin; COX; ketoprofen; antifungal
This study aimed to design and synthesize novel isoxazole derivatives and evaluate their cytotoxic, cyclooxygenase (COX) inhibitory, and antimicrobial activities. The synthesized compounds showed moderate to potent cytotoxic activity against several cancer cell lines, with compound 2b exhibiting the highest activity against cervical cancer cells. Compound 2a and 2b also exhibited potential antiproliferative activities against Hep3B cells. Additionally, compound 2c showed antifungal activity against Candida albicans. These synthesized compounds could be potential candidates for future anticancer drugs.
Isoxazole derivatives are one of the heterocyclic structures that have various biological activities. Objective This study aimed to design and synthesize novel isoxazole derivatives and evaluate their cytotoxic, cyclooxygenase (COX) inhibitory, and antimicrobial activities. Methods Coupling reactions of aniline derivatives and isoxazole carboxylic acid have been established to synthesize chloro-fluorophenyl-isoxazole carboxamide derivatives. The synthesized compounds were characterized using H-1, C-13-NMR, IR, and HRMS spectrum analysis and evaluated by MTS, COX kit, and antimicrobial microdilution assays. Results The synthesized compounds showed moderate to potent cytotoxic activity against all the screened cancer cell lines (except 2b against HepG2) with an IC50 range of 0.107-77.83 & mu;g/ml. The results showed that the most potent compound against cervical cancer cell line (HeLa) was the 2b compound, with an IC50 value of 0.11 & PLUSMN;0.10 & mu;g/ml, which is less than the IC50 for the potent anticancer drug Doxorubicin. While the 2a and 2b compounds have potential antiproliferative activities against Hep3B with IC50 doses of 2.774 & PLUSMN;0.53 and 3.621 & PLUSMN;1.56 & mu;g/ml, respectively. Furthermore, 2c compound was the most active against MCF7, with an IC50 value of 1.59 & PLUSMN;1.60 & mu;g/ml. In addition, the most potent isoxazole derivative against the COX1 enzyme was the 2b compound, with an IC50 value of 0.391 & mu;g/ml, and compound 2a had a good selectivity ratio of 1.44 compared to the Ketoprofen positive control. However, compound 2c showed antifungal activity against Candida albicans with an MIC value of 2.0 mg/ml in comparison to the antifungal drug Fluconazole (MIC = 1.65 mg/ml). Conclusion The synthesized compounds could be candidates for anticancer drugs in the future, and other analogues and cytotoxicity evaluations should be conducted.
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