New annonaceous acetogenins from the roots of Uvaria calamistrata.
J Nat Prod
; 63(9): 1201-4, 2000 Sep.
Article
en En
| MEDLINE
| ID: mdl-11000019
ABSTRACT
Five new annonaceous acetogenins, calamistrins C-G (1-5), were isolated from an ethanolic extract of the roots of Uvaria calamistrata. Compounds 1-3 were mono-THF ring acetogenins; compounds 4 and 5 were bis-THF acetogenins, with the THF rings from C-18 to C-25. The absolute configurations of 3, 4, and 5 as well as the partial absolute configurations of 1 and 2 were determined by (13)C NMR spectroscopy and advanced Mosher methodology.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Magnoliopsida
/
Furanos
/
Lactonas
Límite:
Humans
Idioma:
En
Revista:
J Nat Prod
Año:
2000
Tipo del documento:
Article