作者:Faiz Ahmed Khan、Saeed Ahmad
DOI:10.1016/j.tetlet.2013.03.122
日期:2013.6
A two-step synthesis of marine origin brominated alkaloids wilsoniamines A (1) and B (2), isolated from Australian bryozoan Amathia wilsoni Kirkpatrick, possessing a novel hexahydro-1H-pyrrolo[1,2-c]imidazol-1-one ring system is described. The core hexahydro-1H-pyrrolo[1,2-c]imidazol-1-one ring systems is constructed through a condensation reaction between (2,4,6-tribromo-3-methoxyphenyl)acetaldehyde
两步法合成海洋起源的溴化生物碱wilsoniamines A(1)和B(2),其分离自澳大利亚苔藓虫Amathia wilsoni Kirkpatrick,具有新颖的hexahydro-1 H -pyrrolo [1,2- c ]咪唑-1-酮描述了铃声系统。通过(2,4,6-三溴-3-甲氧基苯基)乙醛与(S)-N的缩合反应构建六氢-1 H-吡咯并[1,2 - c ]咪唑-1-环核心体系-甲基吡咯烷-2-羧酰胺为关键步骤。通过在动力学或热力学条件下进行关键缩合反应来控制两种差向异构天然产物中取代的苄基侧链的取向。