Novel coumarin derivatives containing 1,2,4-triazole, 4,5-dicyanoimidazole and purine moieties: synthesis and evaluation of their cytostatic activity |
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Authors: | Krešimir Benci Leo Mandić Tomislav Suhina Mirela Sedić Marko Klobučar Sandra Kraljević Pavelić Krešimir Pavelić Karlo Wittine Mladen Mintas |
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Institution: | Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Maruli?ev trg 19, Zagreb 10000, Croatia. mladen.mintas@fkit.hr. |
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Abstract: | We report here on the synthesis and in vitro anti-tumor effects of a series of novel 1,2,4-triazole (compounds 3-6), 4,5-dicyanoimidazole (compound 7), and purine (compounds 8-13) coumarin derivatives and their acyclic nucleoside analogues 14-18. Structures of novel compounds 3-18 were deduced from their 1H- and 13C-NMR and corresponding mass spectra. Results of anti-proliferative assays performed on a panel of selected human tumor cell lines revealed that compound 6 had moderate cytostatic activity against the HeLa cell line (IC50 = 35 μM), whereas compound 10 showed moderate activity against the HeLa (IC50 = 33 μM), HepG2 (IC50 = 25 μM) and SW620 (IC50 = 35 μM) cell lines. These compounds showed no cytotoxic effects on normal (diploid) human fibroblasts. |
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