palladium-catalyzed amination of the pyrido[3′,3′:4,5]pyrrolo[1,2-c]pyrimidine nucleus, the heterocyclic core of the variolin alkaloids, is described. The method allows the introduction of amino and aryl- and alkylamino substituents on the C9 position in advanced precursors of variolin B and deoxyvariolin.
描述了一种新的,选择性
钯催化的天花碱
生物碱的杂环核心,
吡啶并[3',3':4,5]
吡咯并[1,2- c ]
嘧啶核。该方法允许在variolin B和deoxyvariolin的高级前体中的C9位上引入
氨基,芳基和烷基
氨基取代基。