Insecticidal bisindole alkaloids from leaves of Tabernaemontana divaricata 'Dwaft'.
Phytochemistry
; 222: 114075, 2024 Jun.
Article
de En
| MEDLINE
| ID: mdl-38570006
ABSTRACT
Six undescribed bisindole alkaloids, namely taberdisines A-F (1-6), were isolated from the leaves of Tabernaemontana divaricata 'Dwaft'. Among them, alkaloids 1 and 2 were the first examples of strychnos-iboga type alkaloid with both C-C linkage patterns. Alkaloid 3, a new type of aspidosperma-iboga with a furan-ring, as well as other three undescribed ones was disclosed. Their structures were elucidated by comprehensive spectroscopic analyses. Alkaloids 1 and 5 showed insecticide activity on Sf9 cell and eggs of Spodoptera frugiperda in vivo, which might explain the potential of the plants for insect resistance.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Spodoptera
/
Feuilles de plante
/
Tabernaemontana
/
Alcaloïdes indoliques
/
Insecticides
Limites:
Animals
Langue:
En
Journal:
Phytochemistry
Année:
2024
Type de document:
Article
Pays d'affiliation:
Chine
Pays de publication:
Royaume-Uni