克西拉里辛A-I:来自内类真菌Xylaria sp.的多氧化克桑衍生物. 在 LCSS1a 中使用
Wenge Zhang1, Lihua Zhu1, Kunkun Zhang1
1Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), and State Key Laboratory of Discovery and Utilization of Functional Components in Traditional Chinese Medicine, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.
Phytochemistry
|February 2, 2026
概括
研究人员从一种真菌中发现了九种新的化合物,即利素AI. 一种化合物对肺癌细胞和细菌表现出中度活性,突出显示了特定化学结构对生物活性的重要性.
科学领域:
- 自然产品化学 自然产品化学
- 菌类学 菌类学是指菌类学.
- 药用化学 医学化学
背景情况:
- 内类真菌是新生物活性代谢物的来源.
- 众所周知,西拉里亚种类产生各种化学化合物.
研究的目的:
- 隔离和描述来自内菌菌 Xylaria sp. 的新代谢物. LCSS1a. 这是一本书.
- 评估分离化合物的细胞毒性和抗菌活性.
主要方法:
- 使用乙烯酸乙烯提取和分离的真菌代谢物.
- 通过广泛的光谱分析 (NMR,X射线晶体学) 阐明结构.
- 量子化学计算 (C NMR DP4+分析,TDDFT-ECD) 用于绝对配置的确定.
- 细胞毒性和抗菌性测定 (A549肺癌细胞,金黄色葡萄球菌).
主要成果:
- 隔离了24种天然代谢物,包括15种已知代谢物和9种新型的多芳香化桑衍生物 (xylaricins A-I).
- 化合物9对A549细胞表现出中度细胞毒性 (IC50 = 7.5μM) 和对*S. aureus* (MIC = 16μg/mL) 的抗菌活性.
- 结构-活性关系分析表明合的π-系统和自由基对生物活性的重要性.
结论:
- 这项研究成功地发现了从内分泌性真菌中获得的新型桑衍生物.
- 化合物9代表了开发新的抗癌和抗菌剂的潜在领导力.
- 这些发现有助于了解真菌代谢物的化学多样性和生物活性.
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