New sesquiterpenes from Crossopetalum tonduzii.
J Nat Prod
; 61(12): 1520-3, 1998 Dec.
Article
en En
| MEDLINE
| ID: mdl-9868155
ABSTRACT
Five new sesquiterpenes (1-5) with a dihydro-beta-agarofuran skeleton were isolated from Crossopetalum tonduzii. Their structures were elucidated by means of 1H and 13C NMR spectroscopic studies, including homonuclear and heteronuclear correlation experiments (COSY, ROESY, HMQC, and HMBC). The absolute configurations of 1 and 2 were determined by CD studies and chemical correlation. Compounds 1-3 were assayed against Spodoptera littoralis in an election test and showed low insect-antifeedant activity.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Plantas
/
Sesquiterpenos
/
Spodoptera
/
Conducta Alimentaria
Límite:
Animals
País/Región como asunto:
America central
/
Panama
Idioma:
En
Revista:
J Nat Prod
Año:
1998
Tipo del documento:
Article
País de afiliación:
España