Cycloartane triterpenoid saponins from the roots of Astragalus ernestii
Author:
Li Jin-Qiang1, Xiao Chao-Jiang1, Yang Han2, Tian Xin-Yan1, Li Ye-Meng1, Jiang Bei1
Affiliation:
1. Institute of Materia Medica and College of Pharmacy and Chemistry , Dali University , Snowman Road 2 , Dali , 671000, PR China 2. Chuxiong Medical and Pharmaceutical College , Donggua new street Road 1 , Chuxiong , 675005, PR China
Abstract
Abstract
A systematic study on chemical constituents of the roots of Astragalus ernestii was performed by silica gel, sephadex LH-20, MCI gel and Rp-18 column chromatography and spectral analysis such as MS, 1D and 2D NMR. As a result, nine cycloartane triterpenoid saponins were obtained from the methanol extract including a new compound asernestioside D (1), along with eight known constituents, 3-O-β-d-xylopyranosyl-3β,6a,16β,20(S),24(R),25-hexahydroxycycloartane (2), cycloasgenin C-3-O-β-d-xylopyranoside (3), cycloascidoside (4), cyclosiversigenin-3-O-β-d-xylopyranoside (5), isoastragaloside IV (6), asernestioside A (7), asernestioside B (8), and asernestioside C (9).
Funder
National Natural Science Foundation of China Dali University
Publisher
Walter de Gruyter GmbH
Subject
General Chemistry
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