[en] Fruits of Strychnos usambarensis may be cause of poisoning in Africa. The main alkaloid of an extract with CHCl3 at pH 5 has been isolated and identified as descarbomethoxydihydrogambirtannine; that alkaloid is found for the first time in the family of Loganiaceae.The structure of usambaridine Vi, alkaloid previously isolated from leaves, is now elucidated by analysis of NMR and UV spectra. Its structure corresponds to 10-hydroxy-usambarine.
Disciplines :
Pharmacy, pharmacology & toxicology
Author, co-author :
Angenot, Luc ; Université de Liège - ULiège > Département de pharmacie > Pharmacognosie
Coune, Claude
Tits, Monique ; Université de Liège - ULiège > Département de pharmacie > Phytochimie et phytothérapie
Language :
French
Title :
Les alcaloïdes des fruits et des feuilles du Strychnos usambarensis
Alternative titles :
[en] Alkaloids from Strychnos usambarensis fruits and leaves
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