1.
J Nat Prod
; 71(5): 847-51, 2008 May.
Artigo
em Inglês
| MEDLINE
| ID: mdl-18393461
RESUMO
The phytochemical analysis of Staehelina fruticosa led to the isolation of four germacranolide-type sesquiterpene lactones (1- 4), including two new glycosides. The structures of these sesquiterpene lactones were elucidated using spectroscopic techniques, and enzymatic hydrolysis was carried out to confirm the nature of the two glycoside derivatives. Molecular modeling was incorporated to substantiate their relative configuration.
Assuntos
Asteraceae/química , Lactonas/isolamento & purificação , Sesquiterpenos de Germacrano/isolamento & purificação , Grécia , Lactonas/química , Modelos Moleculares , Conformação Molecular , Estrutura Molecular , Sesquiterpenos de Germacrano/química
2.
Phytochemistry
; 61(8): 919-22, 2002 Dec.
Artigo
em Inglês
| MEDLINE
| ID: mdl-12453517
RESUMO
The stem bark of Cedrelopsis grevei Baill. has yielded the first reported examples of 5-prenylated coumarins, cedrecoumarin A and B as well as the known coumarins, cedrelopsin, scoparone, O-methylcedrelopsin and norbraylin, and the known chromones ptaeroglycol and ptaeroxylinol.