
%0 Journal Article
%A Culvenor, CCJ 
%A Edgar, JA 
%A Frahn, JL 
%A Smith, LW 
%T The alkaloids of <I>Symphytum &#215; uplandicum</I> (Russian comfrey)
%J Australian Journal of Chemistry
%D 1980/05/01
%V 33
%N 5
%P 1105-1113
%K 
%R https://doi.org/10.1071/CH9801105
%U https://www.publish.csiro.au/paper/CH9801105 
%X Eight pyrrolizidine alkaloids have been identified in the leaves of Symphytum &#215; uplandicum Nyman (Russian comfrey). They are echimidine (1), symphytine (2), lycopsamine (3), intermedine (4) and four new alkaloids, 7-acetyllycopsamine (5), 7-acetylintermedine (6), symlandine (7)(7-angelyl-9-viridiflorylretronecine) and uplandicine (8) (7-acetyl- 9-echimidinylretronecine). 
