8-deoxyheronamide C (2). The developed strategy enabled not only the total synthesis of 8-deoxyheronamide C (2) but also the unified synthesis of four heronamide-like molecules named “heronamidoids” (5–8). Conformational and reactivity analysis of the heronamidoids clarified that (1) the C19 stereochemistry mainly affected the conformation of the amide linkage, resulting in the change of alignment of two
通过合成 8-deoxyheronamide C ( 2 )建立了一种高度模块化的 Heronamide C 型多
烯大环内
酰胺合成策略。所开发的策略不仅能够实现 8-
脱氧海洛因酰胺 C (2) 的全合成,而且能够统一合成四种名为“heronamidoids”的类
海洛因酰胺分子 ( 5-8 )。Heronamidoids 的构象和反应性分析阐明:(1)C19 立体
化学主要影响
酰胺键的构象,导致两个多
烯单元的排列发生变化和对光
化学 [6π + 6π] 环加成的反应性,以及(2) C8,C9
-二醇部分对于从heronamide C骨架转化为heronamide A型骨架很重要。