作者:Markella Konstantinidou、Katarzyna Kurpiewska、Justyna Kalinowska-Tłuscik、Alexander Dömling
DOI:10.1002/ejoc.201801276
日期:2018.12.19
for glutarimide alkaloids of high biological interest is presented. The scaffold is accessed via an Ugi four component reaction, hereby introducing two points of variation. This is followed by a hydrolysis, a cyclization under mild conditions, and an amine deprotection. The diastereomers of the cyclized intermediate can be easily separated, thus leading to optically pure alkaloids. By this route, four
介绍了具有高度生物学意义的戊二酰亚胺生物碱的简洁四步合成路线。通过 Ugi 四组分反应访问支架,从而引入两个变化点。接着是水解、温和条件下的环化和胺脱保护。环化中间体的非对映异构体很容易分离,从而得到光学纯的生物碱。通过这条路线,合成了四种天然产物和十种衍生物。研究了合成方法的范围和局限性。