总合成 (-) -Protulactone B,并评估其抗菌和抗真菌活性
Yaxuan Wang1, Changjiu Gao1, Qichao Liang1
1College of Pharmacy, Mudanjiang Medical University, Mudanjiang 157011, China.
Journal of natural products
|February 21, 2026
概括
研究人员报告了一种新型的 (-) - 蛋白B 的合成,这是一个独特的真菌代谢产物. 这种高效的方法为生物评估提供了材料,揭示了针对格拉姆阴性病原体的选择性抗菌活性.
科学领域:
- 有机化学 有机化学
- 自然产品的合成自然产品的合成
- 药用化学 医学化学
背景情况:
- (-) - - 蛋白B是一种结构独特的真菌代谢产物.
- 了解它的生物活性需要一个可靠的合成路线.
研究的目的:
- 开发一种实用且高效的 (-) - 质乳B的总合成方法.
- 为了研究合成 (-) -protulactone B. 的生物活性.
主要方法:
- 使用甲基α-l-rhamnopyranoside作为合池起始材料的融合合成.
- 通过循环碳酸盐中间体对C3配置进行新型立体选择性反转.
- 双乙氧化物介导的单转化用于化学选择性裂变和乳形成.
主要成果:
- 实现了高效的8步合成,总产量为20.2%.
- 合成的 (-) -protulactone B 显示出针对格拉姆阴性病原体的选择性抗菌活性.
- 与不活跃的protulactone A相比,观察到一个不同的活性概况.
结论:
- 确立了一个实用的合成路径,用于 (-) - 质素B.
- 开发了新的合成方法,包括立体选择逆转和单乳化.
- 这一发现有助于进一步调查原生乳天然产品家族及其抗菌潜力.
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