
TY  - JOUR
A1  - Roitman, JN 
T1  - Longitubine and Neolatifoline, New Pyrrolizidine Alkaloids From <I>Hackelia longituba</I>
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1998
VL  - 41
IS  - 12
SP  - 1827
EP  - 1833
KW  - 
UR  - https://doi.org/10.1071/CH9881827 
N2  - Methanolic extracts of freeze-dried Hackelia longituba I. M. Johnston (Boraginaceae) afforded two new pyrrolizidine alkaloids: longitubine (1), an analogue of latifoline (2) in which an acetoxy group has replaced the angeloxy group at C7 and neolatifoline (3a) or (3b), a diastereomer of latifoline esterified at C9 with a stereoisomer of latifolic acid. In addition, the known alkaloids latifoline (2), 9-angelylretronecine (4) and 7-angelylretronecine (5) were isolated and identified. 
ER  -

