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首页> 外文期刊>The Journal of Antibiotics: An International Journal >Furanoaustinol and 7-acetoxydehydroaustinol: new meroterpenoids from a marine-derived fungal strain Penicillium sp SF-5497
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Furanoaustinol and 7-acetoxydehydroaustinol: new meroterpenoids from a marine-derived fungal strain Penicillium sp SF-5497

机译:Furanoaustinol和7-乙酰氧基葡萄球菌:来自海洋衍生的真菌菌株Penicillium sp Sf-5497的新梅特萜类化合物

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摘要

Two new meroterpenoid-type fungal metabolites, furanoaustinol (1) and 7-acetoxydehydroaustinol (2), were isolated from the ethyl acetate extract of a marine-derived fungal strain Penicillium sp. SF-5497, along with eight (3-10) known meroterpenoids. Their structures were elucidated mainly based on the analysis of their NMR (1D and 2D) and MS data. Particularly, the novel meroterpenoid, furanoaustinol (1), belonging to the austin group, was identified to possess an unprecedented hexacyclic ring system. Biological evaluation of these compounds revealed that furanoaustinol (1) weakly inhibited the activity of protein tyrosine phosphatase 1B in a dose-dependent manner with an IC50 value of 77.2 mu M. In addition, 7-acetoxydehydroaustinol (2) and four other known meroterpenoids (5, 7, 9, and 10) weakly suppressed the overproduction of nitric oxide in lipopolysaccharide-challenged BV2 microglial cells with IC50 values of 61.0, 30.1, 58.3, 37.6, and 40.2 mu M, respectively.
机译:两种新的梅特托萜型真菌代谢物,呋喃甲醇(1)和7-乙酰氧基盐(2)与海洋衍生的真菌菌株Penicillium sp的乙酸乙酯提取物分离出来。 SF-5497,以及八(3-10)份已知的梅特萜类化合物。 它们的结构主要基于其NMR(1D和2D)和MS数据的分析。 特别是,鉴定了属于奥斯汀基团的新型梅特萜类化合物(1),以具有前所未有的六类环形环系统。 这些化合物的生物学评价显示,呋喃替索酚(1)弱抑制蛋白质酪氨酸磷酸酶1b以剂量依赖性方式抑制蛋白酪氨酸磷酸酶1b的活性,IC50值为77.2μm。此外,7-乙酰氧基苯甲钛(2)和其他其他已知的梅特选蛋白( 5,7,9和10)弱抑制了脂多糖挑战的BV2微胶质细胞的一氧化氮过量,分别具有61.0,30.1,58.3,37.6和40.2μm的IC 50值。

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