通过一种生物启发的策略,在克尺度上合成阿尔斯托斯科拉利诺伊德B
Long He1, Wenting Zhang2, Xiaocheng Zhang1
1Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China. yanjiahang1015@163.com.
Organic & biomolecular chemistry
|November 1, 2023
概括
研究人员用一种生物启发的方法合成了新型重排列的三烯Alstoscholarinoid B. 这种高效的合成适用于克尺度生产,并突出了复杂分子构建的关键化学转换.
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:
- 阿尔斯托斯科拉利诺伊德A是一种具有独特的多环框架的新型重新排列的三烯.
- 阿尔斯托斯科拉利诺伊德A表现出抗超血性生物活性,表明其具有治疗潜力.
研究的目的:
- 报告一个生物启发的,逐步合成的alstoscholarinoid B.
- 开发一种针对阿尔斯托斯科拉利诺伊德B.的格拉姆级合成方法.
主要方法:
- 使用了Chugaev消除用于烯酸的Δ11,12双键迁移.
- 采用 LiHMDS 介导的序列性分子内 aldol 凝结/乳酸化,用于多环系统的构建.
- 发现了一种使用LiI/2,4,6-collidine的双重脱保护/阿尔多尔凝结/乳酸化过程.
主要成果:
- 实现了Alstoscholarinoid B.的逐步合成.
- 证明了克尺度合成的可行性.
- 机械学研究揭示了碳酸盐在化学选择性α-deprotonation中的作用.
结论:
- 报告的合成提供了一个有效的途径,以alstoscholarinoid B.
- 合成策略适合大规模生产.
- 了解反应机制有助于复杂的天然产品合成.
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