Rapid Assembly of Quinolizidines via Consecutive Nucleophilic Cyclizations onto Activated Amides
作者:Guillaume Bélanger、Gary O’Brien、Robin Larouche-Gauthier
DOI:10.1021/ol201616k
日期:2011.8.19
new approach to the synthesis of quinolizidines involving a cascade of nucleophilic cyclizations triggered by chemoselective amide activation is reported. Particular attention was given to the effect of the nature of the tethered nucleophiles on the cascade of cyclizations. As a result, simple acyclic amides gave rapid access to functionalized quinolizidines bearing either a tertiary or quaternary center
报道了一种新的合成喹喔啉的方法,该方法涉及由化学选择性酰胺活化引发的一系列亲核环化反应。特别注意了拴系亲核试剂的性质对级联反应的影响。结果,简单的无环酰胺可快速进入在环连接处带有叔或季中心的官能化喹嗪。在几种生物碱中发现了这种稠合的双环基序。