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Polyoxygenated cyclohexene derivatives and flavonoids from the leaves of Uvaria pandensis
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC, Organic Chemistry. Chemistry Department, College of Natural and Applied Sciences, University of Dar es Salaam, P.O. Box. 35061, Dar es Salaam, Tanzania.ORCID iD: 0000-0002-4743-1495
Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
Department of Chemistry and Molecular Biology, Center for Antibiotic Resistance Research (CARe), University of Gothenburg, SE-412 96 Gothenburg, Sweden.
Department of Chemistry and Molecular Biology, Center for Antibiotic Resistance Research (CARe), University of Gothenburg, SE-412 96 Gothenburg, Sweden.
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2022 (English)In: Fitoterapia, ISSN 0367-326X, E-ISSN 1873-6971, Vol. 158, article id 105170Article in journal (Refereed) Published
Abstract [en]

Three new oxygenated cyclohexene derivatives, pandensenol D - F (1–3), two new flavanoids, pandensone A and B (4–5), and seven known compounds (6–12) were isolated from the methanol extract of the leaves of Uvaria pandensis Verdc. (Annonaceae). The structures were characterized by NMR spectroscopic and mass spectrometric analyses. The isolated metabolites were evaluated for their antibacterial activity against the Gram-positive bacteria Bacillus subtilis and Staphylococcus epidermidis, the Gram-negative bacteria Enterococcus raffinosus, Escherichia coli, Paraburkholderia caledonica, Pectobacterium carotovorum and Pseudomonas putida, and for cytotoxicity against the MCF-7 human breast cancer cell line. Out of the tested compounds, pandensenol D (1) and (6′,7′-dihydro-8'α,9'β-dihydroxy)-3-farnesylindole (12) showed weak activity, whereas (8'α,9'β-dihydroxy)-3-farnesylindole (11) strong activity against B. subtilis. Four of the isolated compounds (1, 4, 11 and 12) showed moderate cytotoxicity against MCF-7 breast cancer cells (EC50 > 100 μM).

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Elsevier BV Elsevier, 2022. Vol. 158, article id 105170
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Organic Chemistry
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URN: urn:nbn:se:uu:diva-472464DOI: 10.1016/j.fitote.2022.105170ISI: 000794059000003OAI: oai:DiVA.org:uu-472464DiVA, id: diva2:1651300
Available from: 2022-04-11 Created: 2022-04-11 Last updated: 2024-01-15Bibliographically approved

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Maeda, GasperErdélyi, Máté

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