Asperversins A and B, Two Novel Meroterpenoids with an Unusual 5/6/6/6 Ring from the Marine-Derived Fungus Aspergillus versicolor.

Asperversins A and B, Two Novel Meroterpenoids with an Unusual 5/6/6/6 Ring from the Marine-Derived Fungus Aspergillus versicolor.
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Asperversins A 和 B,来自海洋源性真菌 Aspergillus versicolor 的两种新型子萜,具有不寻常的 5/6/6/6 环

DOI:
10.3390/md16060177
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发表时间:
2018-05-23
期刊:
影响因子:
5.4
通讯作者:
Zhang Y
Zhang Y
中科院分区:
医学2区
文献类型:
--
作者:
Li H;Sun W;Deng M;Qi C;Chen C;Zhu H;Luo Z;Wang J;Xue Y;Zhang Y

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从海洋真菌杂色曲霉(Aspergillusversicolor)中分离得到两个新的具有不常见的5/6/6/6环结构的部分萜类化合物--Aspergillusversins A(1)和B(2),沿着分离得到5个新的类似物(3-7)和一个已知化合物asperdemin(8)。它们的结构和绝对构型通过大量的光谱分析、单晶X射线衍射研究和电子圆二色性(ECD)计算得到证实。对所有新化合物进行了乙酰胆碱酯酶(AChE)抑制活性和细胞毒活性测试,其中化合物7显示出中等抑制活性,IC 50值为13.6 μM。
Asperversins A (1) and B (2), two novel meroterpenoids featuring an uncommon 5/6/6/6 ring system, along with five new analogues (3–7) and a known compound asperdemin (8), were obtained from the marine-derived fungus Aspergillus versicolor. Their structures and absolute configurations were confirmed by extensive spectroscopic analyses, single-crystal X-ray diffraction studies, and electronic circular dichroism (ECD) calculation. All new compounds were tested for their acetylcholinesterase enzyme (AChE) inhibitory activities and cytotoxic activities, of which compound 7 displayed moderate inhibitory activity against the AChE with an IC50 value of 13.6 μM.
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