Three new cycloartane-triterpene glycosides, astraverrucin IV, V and VI, were isolated from the aerial parts of Astragalus verrucosus. Based on spectroscopic analysis (IR, 1D and 2D-NMR, FABMS), the structures of the saponins were established to be cycloastragenol 3-O-[α-L-rhamnopyranosyl(1 → 4)-β-D-glucopyranoside], cycloastragenol 3-0-[α-L-rhamnopyranosyl(1 → 4)]-β-D-(3-O-acetyl)glucopyranoside and cycloastragenol 3-O-[α-L- rhamnopyranosyl (1 → 4)]-β-D-(6-O-acetyl)-glucopyranoside. D-pinitol and astraverrucin I were also obtained.
Cicloastragenol Glycosides from Astragalus Verrucosus / L.Pistelli, S.Pardossi, A.Bertoli, D.Potenza. - In: PHYTOCHEMISTRY. - ISSN 0031-9422. - 49:8(1998), pp. 2467-2471.
Titolo: | Cicloastragenol Glycosides from Astragalus Verrucosus |
Autori: | POTENZA, DONATELLA (Ultimo) |
Settore Scientifico Disciplinare: | Settore CHIM/06 - Chimica Organica |
Data di pubblicazione: | 1998 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/S0031-9422(98)00297-0 |
Appare nelle tipologie: | 01 - Articolo su periodico |