Polyoxygenated cyclohexane derivatives and other constituents from Kaempferia rotunda L.
Phytochemistry
; 68(11): 1579-86, 2007 Jun.
Article
em En
| MEDLINE
| ID: mdl-17493646
ABSTRACT
Methanol extracts of Kaempferia rotunda L. rhizomes yielded seven compounds including six polyoxygenated cyclohexane derivatives identified as (-)-6-acetylzeylenol (1), four acylated derivatives of 1-benzoyloxymethyl-1,6-epoxycyclohexan-2,3,4,5-tetrol (3-6), a Diels-Alder adduct of 3-benzoyl-1-benzoyloxymethylcyclohexa-4,6-dien-2,3-diol (7), and a triacylated derivative of salicin (9). The cyclohexane diepoxide, crotepoxide (8), was also obtained. Spectroscopic methods were used for structure determination. The methanol extract of the rhizomes of K. rotunda and (-)-2-acetyl-4-benzoyl-1-benzoyloxymethyl-1,6-epoxycyclohexan-2,3,4,5-tetrol (2-acetylrotepoxide B; 6), had antifeedant activity against larvae of Spodoptera littoralis. (-)-Zeylenol (2) also showed antifeedant activity, whereas (-)-6-acetylzeylenol (1) was inactive.
Buscar no Google
Bases de dados:
MEDLINE
Assunto principal:
Cicloexanos
/
Zingiberaceae
Limite:
Animals
Idioma:
En
Revista:
Phytochemistry
Ano de publicação:
2007
Tipo de documento:
Article