作者:James M. Auty、Ian Churcher、Christopher J. Hayes
DOI:10.1055/s-2004-829092
日期:——
An enantioselective total synthesis of the muscarinic inhibitor (-)-TAN1251A has been achieved. An alkylidene 1,5-CH insertion reaction was used as a key step to produce a [5,5]-spirocyclic intermediate, which was transformed into the [6,5]-spirocyclic core of the natural product via an oxidative cleavage/aldol condensation sequence. The synthesis of the natural product was then completed using standard procedures.
我们实现了毒蕈碱抑制剂 (-)-TAN1251A 的对映选择性全合成。关键步骤是使用亚烷基 1,5-CH 插入反应生成[5,5]-螺环中间体,然后通过氧化裂解/醛醇缩合顺序将中间体转化为天然产物的[6,5]-螺环核心。然后采用标准程序完成天然产物的合成。