Alkaloids of Duboisia hopwoodii

Leaf and root collections of Duboisia hopwoodii were made from Alice Springs in central and Western Australia. From D. hopwoodii collected at Alice Springs were isolated nornicotine, nicotine, myosmine and N-formylnornicotine; cotinine, N-acetylnornicotine, anabasine, anatabine, anatalline and bipyridyl were detected by GC/MS. Root material contained hyoscyamine, scopolamine, nicotine and nornicotine; N-formylnornicotine was detected by GC/MS. D. hopwoodii from Western Australia yielded nicotine, nornicotine, hyoscyamine and metanicotine. Root material contained nornicotine, hyoseyamine, myosmine and N-formylnornicotine, GC/MS detected cotinine and N-acetylnornicotine