Minor alkaloids from an aqueous extract of the hook-bearing stem of Uncaria rhynchophylla.
J Asian Nat Prod Res
; 23(6): 513-526, 2021 Jun.
Article
en En
| MEDLINE
| ID: mdl-33794715
ABSTRACT
Seven new monoterpene alkaloids (1-7), along with 18 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 and electronic circular dichroism (ECD) calculations. Compound 1 is the first monoterpene 22-norindoloquinolizidine alkaloid with a ketene unit, while 2 and 3 are unusual indoloquinolizidine alkaloids having an oxazinane ring.[Formula see text].
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Uncaria
/
Alcaloides
Idioma:
En
Revista:
J Asian Nat Prod Res
Asunto de la revista:
BOTANICA
/
QUIMICA
Año:
2021
Tipo del documento:
Article
País de afiliación:
China