作者:Liu-Yang Pu、Zhiyue Li、Limin Li、Yucui Ma、Shengquan Hu、Zhengzhi Wu
DOI:10.1021/acs.joc.2c02899
日期:——
Herein, we report a concise asymmetric total synthesis of isopavine alkaloids, which feature a special azabicyclo[3.2.2]nonane tetracyclic skeleton. The key steps include iridium-catalyzed asymmetric hydrogenation of unsaturated carboxylic acids, Curtius rearrangement, and Eschweiler–Clarke methylation, which enable an enantioselective approach to isopavine alkaloids in 6–7 linear steps. Furthermore
在此,我们报道了异罂粟碱生物碱的简明不对称全合成,其具有特殊的氮杂双环[3.2.2]壬烷四环骨架。关键步骤包括铱催化不饱和羧酸的不对称氢化、Curtius 重排和 Eschweiler-Clarke 甲基化,这使得能够通过 6-7 个线性步骤对异罂粟碱生物碱进行对映选择性方法。此外,首次发现异罂粟碱生物碱,特别是(-)-瑞拉米定( 3 ),对多种癌细胞系显示出有效的抗增殖作用。