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首页> 外文期刊>The Journal of Antibiotics: An International Journal >Graphiumins, new thiodiketopiperazines from the marine-derived fungus Graphium sp. OPMF00224.
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Graphiumins, new thiodiketopiperazines from the marine-derived fungus Graphium sp. OPMF00224.

机译:Graphiumins,来自海洋真菌Graphium sp。的新硫代二酮哌嗪。 OPMF00224。

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摘要

Eight new thiodiketopiperazines, designated as graphiumins A to H (1-8), were isolated along with bisdethiobis(methylthio)-deacetylaranotin (9) and bisdethiobis(methylthio)-deacetylapoaranotin (10) from the culture broth of the marine-derived fungus Graphium sp. OPMF00224. The structures of the graphiumins were elucidated based on spectroscopic analyses (1D and 2D NMR data, ROESY correlations and CD data) and chemical methods. The absolute configuration of the common (3S)-3-hydroxy-octanoyl acid residue in 1, 3 and 4 was determined by hydrolysis, benzoyl derivatization and HPLC analysis using a chiral column. Five graphiumins moderately inhibited yellow pigment production by methicillin-resistant Staphylococcus aureus.
机译:从海生真菌Graphium的培养液中分离了八种新的硫代二酮哌嗪,分别命名为graphiumins A至H(1-8),以及bisdethiobis(methylthio)-deacetylaranotin(9)和bisdethiobis(methylthio)-deacetylapoaranotin(10)。 sp。 OPMF00224。基于光谱分析(1D和2D NMR数据,ROESY相关性和CD数据)和化学方法阐明了石墨烯的结构。通过水解,苯甲酰基衍生化和使用手性柱的HPLC分析确定1,,3和4中常见(3S)-3-羟基辛酸残基的绝对构型。五种石墨烯通过耐甲氧西林的金黄色葡萄球菌适度抑制了黄色素的产生。

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