Four eremophilane sesquiterpenes from the mangrove endophytic fungus Xylaria sp. BL321.

Four eremophilane sesquiterpenes from the mangrove endophytic fungus Xylaria sp. BL321.
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DOI:
10.3390/md10020340
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发表时间:
2012-02
期刊:
影响因子:
5.4
通讯作者:
Lin Y
Lin Y
中科院分区:
医学2区
文献类型:
--
作者:
Song Y;Wang J;Huang H;Ma L;Wang J;Gu Y;Liu L;Lin Y

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从红树林内生真菌Xylaria sp.中分离得到3个新的马齿莲倍半萜(1-3)。BL321和已知的新化合物类似物07H239-A(4)。通过对化合物的MS、1D和2D核磁共振波谱数据的分析,确定了它们的结构。化合物4对α-葡萄糖苷酶的激活活性为0.15μM(146%),然后随着浓度的增加对α-葡萄糖苷酶产生抑制作用,其IC50值为6.54μM。
Three new eremophilane sesquiterpenes (1–3) were isolated from the mangrove endophytic fungus Xylaria sp. BL321 together with 07H239-A (4), a known analogue of the new compounds. The structures of these compounds were elucidated by analysis of their MS, 1D and 2D NMR spectroscopic data. Compound 4 showed activation activity on α-glucosidase at 0.15 μM (146%), and then, 4 gradually produced inhibitory activity on α-glucosidase with increasing concentration, and the IC50 value is 6.54 μM.
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