期刊
PHYTOCHEMISTRY
卷 124, 期 -, 页码 108-113出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.phytochem.2016.02.003
关键词
Hypericum peplidifolium; Hypericaceae; Polyketide derivatives; Furans; Pyranones; Prenylated natural products
资金
- German Academic Exchange Service (DAAD)
- DAAD Research Internships in Science and Engineering (RISE) program
In search for new or chemo-taxonomically relevant bioactive compounds from chemically unexplored Hypericum species, four previously undescribed natural products, named peplidiforones A-D were isolated and characterized from Hypericum peplidifolium A. Rich., together with six known compounds. The structures of all compounds were elucidated by extensive 1D- and 2D-NMR experiments, high resolution mass spectrometric analyses (HR-MS), and by comparison with data reported in the literature. Seven of these compounds are phenyl polyketides while three are acylphloroglucinol type compounds. Peplidiforone C, which possesses an unusual carbon skeleton consisting of a furan ring substituted by a 2,2-dimethylbut-3-enoyl moiety, is the first example of a prenylated furan derivative isolated from the genus Hypericum. The cytotoxicity, antifungal, and anti-herpes simplex virus type 1 (HSV-1) activities of extracts and compounds are described. (C) 2016 Elsevier Ltd. All rights reserved.
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