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EnglishFrom the ethno-medicinally used leaves of Hypericum roeperianum we isolated a new tricyclic acylphloroglucinol (1), a new tetracyclic acylphloroglucinol (2), and a new prenylated bicyclic acylphloroglucinol (3) together with four known prenylated (4-7) and three known tetracyclic acylphloroglucinol derivatives (8-10). Structure elucidation was based on UV, IR, [α]D(25), 1D- and 2D-NMR experiments. Furthermore, empetrifranzinans A (8) and C (9) were synthesized regioselectively in only two steps. The isolated compounds were evaluated for their cytotoxicity against PC-3 and HT-29 cancer cell lines as well as antibacterial and anthelmintic activities. They were also tested in cell-based assays for cytotoxicity against MT-4 cells and for anti-HIV activity in infected MT-4 cells. Significant anthelmintic activity against Caenorhabditis elegans was exhibited by compound 7 (3-geranyl-1-(2'-methylbutanoyl)-phloroglucinol), which might provide a new lead.
| Titolo: | Isolation and anticancer, anthelminthic, and antiviral (HIV) activity of acylphloroglucinols, and regioselective synthesis of empetrifranzinans from Hypericum roeperianum |
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| Data di pubblicazione: | 2015 |
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| Handle: | http://hdl.handle.net/11584/118196 |
| Tipologia: | 1.1 Articolo in rivista |
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|---|---|---|---|---|
| Tanemossu SA et al Biorg med chem 2015.pdf | versione editoriale | Administrator Richiedi una copia |
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