作者:Caroline C. Lang'at、Robert A. Watt、Istvan Toth、J.David Phillipson
DOI:10.1016/s0040-4020(98)00368-8
日期:1998.6
A series of simple bicyclicanalogues of quassinoids have been prepared including compounds with ring A typical of bruceolides and dehydrobruceolides. The synthesis of bicyclic compound 5 and tricyclic analogue 6 was accomplished by acid catalysed Robinson Annelation reaction. Hydroxyketone 9a and its 2-substituted analogues were also prepared to study the structure activity relationship.