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首页> 外文期刊>Bioorganic and Medicinal Chemistry Letters >Rupestonic acids B-G, NO inhibitory sesquiterpenoids from Artemisia rupestris
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Rupestonic acids B-G, NO inhibitory sesquiterpenoids from Artemisia rupestris

机译:鼠李蒿中的鼠李糖酸B-G,NO抑制倍半萜

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摘要

Six new guaiane sesquiterpenoids, rupestonic acids B-G (1-6), have been isolated from the whole plants of Artemisia rupestris together with six known compounds (7-12). The structures of the new isolates (1-6) were elucidated on the basis of extensive 1D and 2D NMR analysis, and the absolute configurations were established by electronic circular dichroism (ECD) in combination with density functional theory calculations. In in vitro bioassays, compounds 2 and 6 exhibited significant inhibitory effects on LPS-stimulated NO production in BV-2 microglial cells with IC50 values of 2.6 and 2.2 μM, respectively.
机译:从青蒿的整个植物中分离出六种新的愈创树倍半萜类化合物,即鼠李酮酸B-G(1-6)和六种已知化合物(7-12)。在广泛的1D和2D NMR分析的基础上阐明了新分离株(1-6)的结构,并通过电子圆二色性(ECD)结合密度泛函理论计算确定了绝对构型。在体外生物测定中,化合物2和6对BV-2小胶质细胞中LPS刺激的NO产生显着抑制作用,IC50值分别为2.6和2.2μM。

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