- Novel coumarin-6-sulfonamides as apoptotic anti-proliferative agents: synthesis, in vitro biological evaluation, and QSAR studies
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Herein, we report the synthesis of different novel sets of coumarin-6-sulfonamide derivatives bearing different functionalities (4a, b, 8a–d, 11a–d, 13a, b, and 15a–c), and in vitro evaluation of their growth inhibitory activity towards the proliferation of three cancer cell lines; HepG2 (hepatocellular carcinoma), MCF-7 (breast cancer), and Caco-2 (colon cancer). HepG2 cells were the most sensitive cells to the influence of the target coumarins. Compounds 13a and 15a emerged as the most active members against HepG2 cells (IC50 = 3.48 ± 0.28 and 5.03 ± 0.39 μM, respectively). Compounds 13a and 15a were able to induce apoptosis in HepG2 cells, as assured by the upregulation of the Bax and downregulation of the Bcl-2, besides boosting caspase-3 levels. Besides, compound 13a induced a significant increase in the percentage of cells at Pre-G1 by 6.4-folds, with concurrent significant arrest in the G2-M phase by 5.4-folds compared to control. Also, 13a displayed significant increase in the percentage of annexin V-FITC positive apoptotic cells from 1.75–13.76%. Moreover, QSAR models were established to explore the structural requirements controlling the anti-proliferative activities.
- Sabt, Ahmed,Abdelhafez, Omaima M.,El-Haggar, Radwan S.,Madkour, Hassan M. F.,Eldehna, Wagdy M.,El-Khrisy, Ezz El-Din A. M.,Abdel-Rahman, Mohamed A.,Rashed, Laila. A.
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- Design, solvent-free synthesis and antibacterial activity evaluation of new coumarin sulfonamides
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A simple cost-effective and green method was presented for the synthesis of coumarin bis sulfonamides. Seventeen novel coumarin sulfonamides were synthesized in good to high yield and purity in six steps starting from 2-amino thiazole, aniline, and 4-methoxy aniline. All of the reactions have been done under green conditions without using any hazardous solvent. The chemical structures of the products were elucidated by IR, 1H NMR, and 13C NMR spectroscopy and elemental analysis. Also, the anti-bacterial properties of the synthesized sulfonamides were investigated using two strains of Staphylococcus (gram-positive) and Escherichia coli (gram-negative) bacteria.
- Aminarshad, Farzaneh,Heidari, Shima,Mostajeran, Neda,Massah, Ahmad Reza
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p. 547 - 562
(2021/08/16)
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