Sesquiterpenes from Blumea balsamifera.
J Nat Prod
; 74(3): 470-6, 2011 Mar 25.
Article
en En
| MEDLINE
| ID: mdl-21319848
Five new guaiane sesquiterpenes, blumeaenes E1 (1), E2 (2), K (3), L (4), and M (5), and one new eudesmane sesquiterpene, samboginone (6), along with three known compounds, cryptomeridiol, 3,3',5,7-tetrahydroxy-4'-methoxyflavanone, and austroinulin, were isolated from the leaves of the Philippine medicinal herb sambong, Blumea balsamifera. The absolute configuration of the new guaiane core was determined as 1S,7S,9S,10R by employing the modified Mosher's method. In the structure of 1, the absolute configuration of the epoxyangelic acid moiety was identified as 2S,3S using (R)-PGME as a chiral anisotropic auxiliary.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Plantas Medicinales
/
Asteraceae
/
Sesquiterpenos de Eudesmano
/
Sesquiterpenos de Guayano
País/Región como asunto:
Asia
Idioma:
En
Revista:
J Nat Prod
Año:
2011
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
Estados Unidos