First seco-C oleananes from nature.
Org Lett
; 6(2): 173-6, 2004 Jan 22.
Article
en En
| MEDLINE
| ID: mdl-14723521
ABSTRACT
[structure see text] The triterpenes 8,14-seco-oleana-8(26),13-dien-3beta-ol (1) and its acetyl derivative 2 were isolated from Stevia viscida and Stevia eupatoria, respectively. Their structures were elucidated by 2D NMR, including carbon-carbon connectivity experiments, and confirmed by X-ray diffraction analysis of ketone 3. The absolute configuration was determined by NMR analysis of the Mosher esters of 1. The biogenetic implications of the new substances are discussed.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ácido Oleanólico
/
Stevia
Idioma:
En
Revista:
Org Lett
Asunto de la revista:
BIOQUIMICA
Año:
2004
Tipo del documento:
Article