A Photochemical Approach to the Fully Functionalized Ring System of Chilinene, a Key Alkaloid of the Berberine Family
作者:Paul H. Mazzocchi、Cliff R. King、Herman L. Ammon
DOI:10.1016/s0040-4039(00)95444-3
日期:1987.1
The fully functionalized ringsystem of the berberine alkaloid chilinene has been prepared in a seven step synthesis. Key steps in the synthesis are the photocyclization of an imide-thioether and the oxidative formation with Pb(OAc)4 of a novel hexacyclic orthoester which led directly to the desired product.