
%0 Journal Article
%A Knox, JR 
%A Slobbe, J 
%T Indole alkaloids from <I>Ervatamia orientalis</I>. I. Isolation of alkaloids and structural identification of two dimers
%J Australian Journal of Chemistry
%D 1975/08/01
%V 28
%N 8
%P 1813-1823
%K 
%R https://doi.org/10.1071/CH9751813
%U https://www.publish.csiro.au/paper/CH9751813 
%X Ethanol extracts of Ervatamia orientalis have yielded the following known alkaloids: ibogaine, iboxygaine, voacristine, vobasine, dregamine, tabernaemontanine, apparicine, voacamine and 16- demethoxycarbonylvoacamine. In addition, two new dimeric alkaloids of the voacamine group and the novel 2-acylindoles ervatamine, 20- epiervatamine and 19-dehydroervatamine have been isolated from the extracts. The two new dimeric compounds have been identified by physical and chemical methods as 16-demethoxycarbonyldihydrovoacamine and 16-demethoxycarbonyl-20?-epi-dihydrovoacamine. 
