Leonuketal, a Spiroketal Diterpenoid from Leonurus japonicus.
Org Lett
; 17(24): 6238-41, 2015 Dec 18.
Article
em En
| MEDLINE
| ID: mdl-26634796
ABSTRACT
An architecturally complex spiroketal diterpenoid, leonuketal (1), was isolated from the aerial parts of the plant Leonurus japonicus. This compound possessed an unprecedented tetracyclic skeleton that comprised a bridged spiroketal moiety fused with a ketal-γ-lactone unit. The structure and absolute configuration were determined by spectroscopic analyses, a modified Mosher's method, and ECD (electronic circular dichroism) calculations. Leonuketal (1) showed significant vasorelaxant activity against KCl-induced contraction of rat aorta, with the EC50 value of 2.32 µM.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Compostos de Espiro
/
Leonurus
/
Diterpenos
/
Furanos
Limite:
Animals
Idioma:
En
Revista:
Org Lett
Assunto da revista:
BIOQUIMICA
Ano de publicação:
2015
Tipo de documento:
Article