Minor alkaloids from an aqueous extract of the hook-bearing stem of Uncaria rhynchophylla.
J Asian Nat Prod Res
; 26(1): 4-17, 2024 Jan.
Article
de En
| MEDLINE
| ID: mdl-37888783
ABSTRACT
Seven new monoterpene alkaloids (1 - 7), along with 16 known analogues, were isolated from an aqueous decoction of the hook-bearing stems of Uncaria rhynchophylla (Gou-teng). Their structures were determined by spectroscopic data analysis, single crystal X-ray diffraction, and electronic circular dichroism (ECD) calculations. Compounds 1 and 2 are stereoisomers belonging to a novel type of pseudoindoxyl monoterpene alkaloids, 3 is the first monoterpene furoindole alkaloid from nature, and 4 - 7 are derivatives of the known monoterpene alkaloids featuring different structures.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Uncaria
/
Alcaloïdes
Langue:
En
Journal:
J Asian Nat Prod Res
Sujet du journal:
BOTANICA
/
QUIMICA
Année:
2024
Type de document:
Article
Pays d'affiliation:
Chine