Phytochemical reinvestigation of Tabebuia argentea leaves and Catalpa bignonioides petioles extracts (Bignoniaceae) allowed to isolate two compounds not described before: one glycosylated lignan and one phenolic glycoside characterized as 5-hydroxysesamin 5-O-β-d-glucopyranosyl-(1 → 2)-[β-d-glucopyranosyl-(1 → 6)]-β-d-glucopyranoside (1) and 1-benzyl-[6-p-hydroxybenzoyl]-β-d-glucopyranosyl-(1 → 3)-β-d-glucopyranoside (2), respectively. Their structural characterization was obtained on the basis of extensive NMR spectral studies. Five known phenolic glycosides along with six flavonol glycosides were also isolated and characterized.

Phenolic glycosides from Tabebuia argentea and Catalpa bignonioides

VASSALLO, ANTONIO;
2014-01-01

Abstract

Phytochemical reinvestigation of Tabebuia argentea leaves and Catalpa bignonioides petioles extracts (Bignoniaceae) allowed to isolate two compounds not described before: one glycosylated lignan and one phenolic glycoside characterized as 5-hydroxysesamin 5-O-β-d-glucopyranosyl-(1 → 2)-[β-d-glucopyranosyl-(1 → 6)]-β-d-glucopyranoside (1) and 1-benzyl-[6-p-hydroxybenzoyl]-β-d-glucopyranosyl-(1 → 3)-β-d-glucopyranoside (2), respectively. Their structural characterization was obtained on the basis of extensive NMR spectral studies. Five known phenolic glycosides along with six flavonol glycosides were also isolated and characterized.
2014
File in questo prodotto:
File Dimensione Formato  
Bruzual de Abreu et al. - Phytochemistry Letters 2014.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: DRM non definito
Dimensione 306.25 kB
Formato Adobe PDF
306.25 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11563/68291
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 9
  • ???jsp.display-item.citation.isi??? 8
social impact