The azaspiracid natural products display a common spiroaminal-containing terminal domain that has inspired the development of two new methods for spiroaminal syntheses—a Staudinger reduction–aza-Wittig process and a double intramolecular hetero-Michael addition. These effective laboratory approaches proceed through imine and enamine intermediates that may reflect transient biogenetic species.
氮杂螺旋体
天然产物显示出一个常见的含有螺旋体的末端结构域,该结构域启发了两种新的螺旋体合成方法的开发-Staudinger还原-aza-Wittig过程和双分子内异Michael加成。这些有效的实验室方法通过
亚胺和烯胺中间体进行,这些中间体可能反映了短暂的
生物遗传物种。