首页> 外文期刊>The Journal of Antibiotics: An International Journal >Diaporone A, a new antibacterial secondary metabolite from the plant endophytic fungus Diaporthe sp.
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Diaporone A, a new antibacterial secondary metabolite from the plant endophytic fungus Diaporthe sp.

机译:态度A,来自植物内生真菌的新抗菌次级代谢物是SP。

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摘要

Diaporone A (1), one new dihydroisocoumarin derivative and four known alpha-dibenzopyrones, alternariol (2), 5'-hydroxyalternariol (3), alternariol 4,10-dimethyl ether (4), and alternariol 4-methyl ether (5) were isolated from the crude extract of the plant endophytic fungus Diaporthe sp. Their structures were determined on the basis of spectroscopic analysis, including 1D and 2D NMR techniques as well as HRESIMS and comparison with data from the literature. The absolute configuration of 1 was assigned by electronic circular dichroism (ECD) calculations. Compound 1 showed moderate antibacterial activity against Bacillus subtilis with the MIC value of 66.7 mu M, and exhibited weak cytotoxicity against human cervical carcinoma (HeLa) cell line with IC50 value of 97.4 mu M.
机译:效仿A(1),一种新的二羟基乌马林衍生物和四种已知的α-二苯并络酮,alertariol(2),5'-羟基甲醇(3),alertariol 4,10-二甲醚(4),和alertariol 4-甲基醚(5) 从植物内生真菌陷阱SP的粗提物中分离出来。 它们的结构是基于光谱分析确定的,包括1D和2D NMR技术以及Hresims并与来自文献的数据进行比较。 通过电子圆形二分列为(ECD)计算分配1的绝对配置。 化合物1显示对枯草芽孢杆菌的中度抗菌活性,MIC值为66.7μm,并表现出对人宫颈癌(HELA)细胞系的弱细胞毒性,IC50值为97.4亩。

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