Three new quinolizidine alkaloids from the roots of Sophora tonkinensis.
J Asian Nat Prod Res
; 26(3): 302-312, 2024 Mar.
Article
in En
| MEDLINE
| ID: mdl-37312516
ABSTRACT
Three new quinolizidine alkaloids (1 - 3), including one new naturally isoflavone and cytisine polymer (3), along with 6 known ones were isolated from the ethanol extract of Sophora tonkinensis Gagnep. Their structures were elucidated by comprehensive spectroscopic data analysis (IR, UV, HRESIMS, 1D and 2D NMR), combined with ECD calculations. The antifungal activity against Phytophythora capsica, Botrytis cinerea, Gibberella zeae, and Alternaria alternata of the compounds was evaluated in a mycelial inhibition assay. Biological tests indicated that compound 3 exhibited strong antifungal activity against P. capsica with EC50 values of 17.7 µg/ml.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Sophora
/
Alkaloids
Language:
En
Journal:
J Asian Nat Prod Res
Journal subject:
BOTANICA
/
QUIMICA
Year:
2024
Type:
Article
Affiliation country:
China