总合成和结构修订的海洋宏类 neopeltolide 的综合
Daniel W Custar1, Thomas P Zabawa, Karl A Scheidt
1Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
Journal of the American Chemical Society
|December 29, 2007
概括
使用一种新的易斯酸催化循环化方法,实现了neopeltolide的总合成. 这种方法有效地构建了宏循环,并证实了海洋自然产品的存在.
科学领域:
- 有机化学 有机化学
- 自然产品的合成方法
- 药物化学 药物化学
背景情况:
- 尼奥普尔托利德是一种海洋天然产品,具有复杂的宏结构.
- 以前对诺佩尔托利德的结构分配可能需要修订.
- 为复杂的自然产品开发高效的合成策略至关重要.
研究的目的:
- 为了实现海洋天然产品Neopeltolide的总合成.
- 修订和确认neopeltolide的结构,包括其相对和绝对立体化学.
- 开发和展示一种用于宏观循环构建的新型合成方法.
主要方法:
- 易斯酸催化分子内循环被用作关键的键键结合形成步骤.
- 这种循环同时安装了四基环和宏循环.
- 合成路线被用来调查天然和合成材料数据之间的差异.
主要成果:
- 诺佩尔托利德的总合成成功完成.
- 合成了具有倒置C11和C13配置的二聚体分子,并与实验数据相匹配.
- 确立了neopeltolide的正确整体结构和立体化学.
结论:
- 报告的合成提供了一个强大的和高效的路线到neopeltolide.
- 该研究成功地修订并确认了neopeltolide的结构.
- 新的循环化策略代表了宏观循环合成的重大进步.
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