Novel bis(monoterpenoid) indole alkaloids from Psychotria bahiensis.
J Nat Prod
; 66(6): 752-4, 2003 Jun.
Article
em En
| MEDLINE
| ID: mdl-12828456
Two new bis(monoterpenoid) indole alkaloid glucosides, bahienoside A (1) and bahienoside B (2), together with five known compounds, 5alpha-carboxystrictosidine, angustine, strictosamide, and (E)- and (Z)-vallesiachotamine, were isolated from the aerial parts of Psychotria bahiensis collected in Trinidad, West Indies. The structures of the compounds were elucidated using 1D and 2D NMR spectral methods, viz., (1)H, (13)C, (13)C DEPT, (1)H-(1)H COSY, HSQC, HMQC, HMBC, and TOCSY aided by IR, UV, and circular dichroism measurements.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Plantas Medicinais
/
Rubiaceae
/
Alcaloides Indólicos
/
Monoterpenos
País/Região como assunto:
Caribe ingles
/
Trinidad y tobago
Idioma:
En
Revista:
J Nat Prod
Ano de publicação:
2003
Tipo de documento:
Article
País de publicação:
Estados Unidos