Studies on total photolytic syntheses of alkaloids. Part V. Total syntheses of flavinantine, amurine, bracteoline, and domesticine by photolysis of the appropriate 1-(2-bromobenzyl)isoquinolines
Abstract
Photolysis of 6′-bromo-orientaline (2) gave flavinantine (9) and bracteorine (11). Amurine (10) and domesticine (12) were similarly obtained from the corresponding phenolic bromoisoquinoline (6).