使用重新排列策略的阿坎托多拉的总合成
Alina Eggert1, Karl T Schuppe1, Hazel L S Fuchs2
1Institute for Organic Chemistry, Leibniz University Hannover, Schneiderberg 1b, 30167 Hannover, Germany.
Organic letters
|January 2, 2024
概括
研究人员实现了海洋天然产品阿坎托多拉的第二次总合成. 这种简洁的三步合成有效地创建了bicyclo[3.1.1]heptane核心和关键立体中心.
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
- 海洋天然产品 海洋天然产品
背景情况:
- 阿坎托多拉是从海洋裸枝鱼*Acanthodoris nanaimoensis*中分离出来的一种状.
- 阿坎托多拉的复杂结构,包括一个双循环[3.1.1] 赫核和全碳四分制立体中心,构成了重要的合成挑战.
- 之前只报告了一次阿坎托多拉的总合成.
研究的目的:
- 开发一个简洁而高效的 (±) -acanthodoral的第二个总合成.
- 建立一个合成路径,有效地构建双环[3.1.1]核和特征性的全碳四度立体中心.
- 探索复杂的天然产品组装的新型合成方法.
主要方法:
- 从已知的前体开始的三步合成转化.
- 作为一个关键步骤,利用了萨马里 (II) 诱导的1,2重排.
- 采用半皮纳科尔重新排列,以促进核心结构的形成.
主要成果:
- 在三个步骤中成功合成了 (±) -acanthodoral.
- 产生了一个不那么紧张的前体,用于bicyclo[3.1.1]heptane核心.
- 构建了两种全碳四分制立体中心,这对自然产品的结构至关重要.
结论:
- 本文所介绍的合成途径是一种高效且简洁的方法,用于访问acanthodoral.
- 使用的重新排列反应在构建具有挑战性的分子架构方面发挥了关键作用.
- 这种合成为这种海洋天然产品的制备提供了有价值的替代途径.
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