Azadiradione Analogs from 13α- and 13β-Dehydro-epi-androsterone
Abstract
The synthesis of diketones 6, 11 and 17 related to the limonoid antifeedant azadiradione is achieved in 5, 4 and 5 steps, respectively, involving a Stille type coupling reaction and a stereoselective epoxide rearrangement.