Withanolides from Withania somnifera roots.
Phytochemistry
; 69(4): 1000-4, 2008 Feb.
Article
em En
| MEDLINE
| ID: mdl-18061221
ABSTRACT
Two new and seven known withanolides along with beta-sitosterol, stigmasterol, beta-sitosterol glucoside, stigmasterol glucoside, alpha+beta glucose were isolated from the roots of Withania somnifera. Among the known compounds, Viscosa lactone B, stigmasterol, stigmasterol glucoside and alpha+beta glucose are being reported from the roots of W. somnifera for the first time. One of the new compounds contained the rare 16beta-acetoxy-17(20)-ene the other contained unusual 6alpha-hydroxy-5,7alpha-epoxy functional groups in the withasteroid skeleton. The structures were elucidated by spectroscopic methods and chemical transformations.
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Base de dados:
MEDLINE
Assunto principal:
Raízes de Plantas
/
Withania
/
Vitanolídeos
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article