Total Synthesis of (±)-8-Oxo-erythrinine, (±)-8-Oxo-erythraline, and (±)-Clivonine
作者:Maomao He、Chunrong Qu、Bingbing Ding、Hao Chen、Yangyan Li、Guofu Qiu、Xianming Hu、Xuechuan Hong
DOI:10.1002/ejoc.201500265
日期:2015.5
Total syntheses of the erythrina alkaloids (±)-8-oxo-erythrinine and (±)-8-oxo-erythraline have been developed, based on a substrate-controlled intramolecular 6-exo-trig selective radical spirocyclization that establishes the quaternary center of the B-rings. An improved totalsynthesis of (±)-clivonine has also been reported, based on an intramolecular 6-endo-trig free-radical cyclization of a highly