
TY  - JOUR
A1  - Culvenor, CCJ 
T1  - The alkaloids of <I>Echium plantagineum</I> L
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1956
VL  - 9
IS  - 4
SP  - 512
EP  - 520
KW  - 
UR  - https://doi.org/10.1071/CH9560512 
N2  - Two new alkaloids, echiumine, C20H31O6N, and echimidine, C20H31O7N, have been isolated from Echium plantagineum L. Both have a retronecine nucleus esterified on the 7-hydroxyl group with angelic acid. The main esterifying acid of echiumine is trachelanthic acid and of echimidine is 2-methyl-2,3,4-trihydroxypentane-3-carboxylic acid, identical with the esterifying acid of heliosupine. The structure of heliosupine, a diastereoisomer of echimidine, has been confirmed. 
ER  -

