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1H and 13C NMR spectral data of new saponins from Cordia piauhiensis

✍ Scribed by Renata P. Santos; Edilberto R. Silveira; Daniel Esdras de A. Uchôa; Otília Deusdênia L. Pessoa; Francisco Arnaldo Viana; Raimundo Braz-Filho

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
126 KB
Volume
45
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Two new bidesmoside triterpenoid saponins were isolated from stems of Cordia piauhiensis. Their structures, characterized as 3‐O‐α‐L‐rhamnopyranosyl‐(1 → 2)‐β‐D‐glucopyranosyl pomolic acid 28‐O‐β‐D‐glucopyranosyl ester (1) and 3‐O‐α‐L‐rhamnopyranosyl‐(1 → 2)‐β‐D‐glucopyranosyl oleanolic acid 28‐O‐β‐D‐glucopyranosyl‐(1 → 6)‐β‐D‐glucopyranosyl ester (2), were unequivocally established after extensive NMR (^1^H, ^13^C, DEPT 135 , COSY, HSQC, HMBC, TOCSY, and NOESY) studies. Copyright © 2007 John Wiley & Sons, Ltd.

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