用Q-Orbitrap质谱仪研究来自Itea omeiensis的2-arylbenzo[b] furan及其碎片化模式
Yun-Qian Feng1, Pan Zhang1, Jin-Zhen Jian1
1School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, People's Republic of China.
Natural product research
|May 28, 2023
概括
从Itea omeiensis中分离出一种新的化合物,Iteafuranal F,并显示出强烈的抗氧化活性. 发展了质谱法来区分基于碎片化模式的相关化合物.
科学领域:
- 自然产品化学 自然产品化学
- 植物化学 植物化学
- 药用化学 医学化学
背景情况:
- Itea omeiensis是一种具有潜在药用特性的植物物种.
- 2 - 烯基[b]是一种已知具有各种生物活性的化合物.
研究的目的:
- 从Itea omeiensis中分离和描述新的化合物.
- 评估分离化合物的抗氧化潜力.
- 为结构阐明建立质谱碎片化模式.
主要方法:
- 使用95%乙醇提取Itea omeiensis的上空部分.
- 使用色谱技术分离和净化化合物.
- 使用紫外线,红外线,1D/2D NMR 和 HRMS 阐明结构.
- 使用超氧化离子激素清除试验进行抗氧化活性评估.
- 在负离子模式下进行质谱 (MS) 分析.
主要成果:
- 他们分离出了一种新的2-arylbenzo[b]furan, iteafuranal F (1) 和两个已知的类似物 (2-3).
- 伊特阿夫拉纳尔F具有显著的超氧化离子激素清除能力 (IC50 = 0.66 mg/mL),与卢特奥林相当.
- 基于C-10氧化状态的2-arylbenzo[b]furans的区分,已经确定了明显的MS碎片化模式.
结论:
- 伊蒂亚梅属是生物活性2-基[b]的来源.
- 伊塔夫拉纳尔F具有显著的抗氧化特性.
- 马氏体碎片化分析为这种化合物类别的结构性特征提供了有价值的工具.
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