Two new maltol glycosides from roots of Psammosilene tunicoides
10.7501/j.issn.0253-2670.2019.11.001
- Author:
Xiao-Po QI
1
Author Information
1. Department of Pharmacy, Fujian University of Traditional Chinese Medicine
- Publication Type:Journal Article
- Keywords:
Chemical components;
Maltol glycosides;
Psammosilene tunicoides W. C. Wu et C.Y. Wu;
Tunicoside A;
Tunicoside B
- From:
Chinese Traditional and Herbal Drugs
2019;50(11):2513-2517
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the chemical constituents from the roots of Psammosilene tunicoides. Methods: Chemical constituents were separated by column chromatography over silica gel, Sephadex LH-20, and reverse-phase silica gel (ODS), and chemical structures were determined by analysis of HR-ESI-MS, 1D, and 2D NMR spectroscopic data. Results: Two new maltol glycosides were isolated from the 80% aq. Ethanol extract from the roots of P. tunicoides, and their structures were determined as maltol-3-O-[6-O-(4-O-α-L-rhamnopyranosyl)-Z-p-coumaroyl]-β-D-glucopyranoside (1) and maltol-3-O-[6-O-(4-O-α-L- rhamnopyranosyl)-E-p-coumaroyl]-β-D-glucopyranoside (2). Conclusion: Compounds 1 and 2 are identified as new maltol glycosides, and named as tunicosides A and B, respectively.
