作者:Axel Couture、Eric Deniau、Stéphane Lebrun、Pierre Grandclaudon
DOI:10.1039/a809925a
日期:——
A new total synthesis of the two phenolic alkaloids (±)-cherylline 1 and (±)-latifine 2 isolated from Crinum species is described. The two key steps in the elaboration of these natural products are an anionic variant of the Fries rearrangement which gives access to the congested o-aroylbenzoic acid derivatives 26 and 27, and an intramolecular Horner reaction involving the corresponding N-phosphorylmethylbenzamide derivatives 8 and 9.
本文介绍了一种新的全合成方法,即从 Crinum 物种中分离出两种酚类生物碱 (±)-cherylline 1 和 (±)-latifine 2。制备这两种天然产物的两个关键步骤是弗里斯重排的阴离子变体,通过该变体可获得稠合邻甲酰基苯甲酸衍生物 26 和 27,以及涉及相应 N-磷酰甲基苯甲酰胺衍生物 8 和 9 的分子内霍纳反应。