An Easy Entry into Berbane and Alloyohimbane Alkaloids via a 6-<i>exo</i> Radical Cyclization
作者:Talbi Kaoudi、Luis D. Miranda、Samir Z. Zard
DOI:10.1021/ol016424v
日期:2001.10.1
[GRAPHICS]The pharmacologically important tetracyclic berbane and pentacyclic alloyohimbane structures were prepared efficiently in four steps including a stereoselective 6-exo radical cyclization using xanthates as the radical source.