
%0 Journal Article
%A Dacunha, EVL 
%A Armstrong, JA 
%A Gray, AI 
%A Hockless, DCR 
%A Waterman, PG 
%A White, AH 
%T 3-Monoterpenyl 2,4-Dioxygenated Quinoline Alkaloids From the Aerial Parts of <I>Eriostemon australasius</I> subsp. <I>banksii</I> (Rutaceae)
%J Australian Journal of Chemistry
%D 1993/10/01
%V 46
%N 10
%P 1507-1514
%K 
%R https://doi.org/10.1071/CH9931507
%U https://www.publish.csiro.au/paper/CH9931507 
%X An extract of the aerial parts of Eriostemon australasius Pers.subsp. banksii (A. Cunn. ex Endl .) P.G. Wilson ( Rutaceae ), collected from the Cape York Peninsula, has yielded four novel secondary metabolites. These were identified, by spectroscopic methods, as methyl (E)-4-(3&#8242;-methylbut-2&#8242;-enyloxy) cinnamate, cis-erioaustralasine [{rel}-1-acetoxymethyl-4,8&#8242;-epoxy-3-(1&#8242;&#946;,2&#8242;&#946;-epoxy-3&#8242;&#946;,4&#8242;&#946;-para-menth-3&#8242;-yl)quinolin-2-one], trans- erioaustralasine [{rel}-1-acetoxymethyl-4,8&#8242;-epoxy-3-(1&#8242;&#946;,2&#8242;&#946;-epoxy-3&#8242;&#946;,4&#8242;&#945;-para-menth-3&#8242;-yl)quinolin-2-one] and furoerioaustralasine [{rel}-2,2&#8242;&#946;:4,8&#8242;-diepoxy-3-(1&#8242;&#946;-hydroxy-3&#8242;&#945;,4&#8242;&#945;-para-menth-3&#8242;-yl) quinoline ]. The structure of cis-erioaustralasine was confirmed by X-ray crystallographic studies. The taxonomic significance of the occurrence of these alkaloids in E. australasius is discussed. 
