A Short Total Synthesis of the Alkaloids Piperolactam C, Goniopedaline, and Stigmalactam
作者:Véronique Rys、Axel Couture、Eric Deniau、Pierre Grandclaudon
DOI:10.1002/ejoc.200390177
日期:2003.3
The total synthesis of the polyalkoxylated alkaloids piperolactam C, goniopedaline and stigmalactam by combinatorial metalation/cyclization strategies has been achieved. The synthetic route involved the preliminary construction of the polyalkoxylated isoindolinone template by Parham’s technique. Benzylic lactam deprotonation allowed connection of a hydroxybenzyl appendage, and the synthesis of the
已经通过组合金属化/环化策略实现了聚烷氧基化生物碱哌内酰胺C、goniopedaline和豆内酰胺的全合成。合成路线涉及通过Parham's技术初步构建聚烷氧基化异吲哚啉酮模板。苄基内酰胺去质子化允许连接羟基苄基附属物,目标天然产物的合成通过随后的 E1cB 消除、自由基环化和最终脱保护来完成。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)