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Structure elucidation and total assignment of 1H and 13C NMR data for a new bisdesmoside saponin from Cordia piauhiensis

✍ Scribed by Renata P. Santos; Francisco A. Viana; Telma Leda G. Lemos; Edilberto R. Silveira; Raimundo Braz-Filho; Otília Deusdênia L. Pessoa

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
104 KB
Volume
41
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Extensive 1D (^1^H NMR, HBBD‐^13^C NMR, DEPT‐^13^C NMR) and 2D (COSY, TOCSY, NOESY, HMQC and HMBC) NMR analysis was used to characterize the structure of a new bisdesmoside saponin isolated from the methanol extract of stems of Cordia piauhiensis Fresen as 3β‐O‐[α‐L‐rhamnopyranosyl‐(1 → 2)‐β‐D‐glucopyranosyl]ursolic acid 28‐O‐[β‐D‐glucopyranosyl‐(1 → 6)‐β‐D‐glucopyranosyl] ester. Copyright © 2003 John Wiley & Sons, Ltd.

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