New flavonol tetraglycosides from Astragalus caprinus |
| |
Authors: | Semmar Nabil Fenet Bernard Gluchoff-Fiasson Katia Comte Gilles Jay Maurice |
| |
Institution: | Laboratoire de Phytochimie et Biologie Micromoleculaire, UFR de Biologie, Université Lyon 1, France. |
| |
Abstract: | A new flavonol tetraglycoside, together with four acylated derivatives, were isolated from the leaves of Astragalus caprinus. Their structures were elucidated by spectroscopic methods, mainly 2D NMR, as kaempferol-3-O-beta-D-xylopyranosyl(1-->3)-alpha-L-rhamnopyranosyl(1-->6)]alpha-L-rhamnopyranosyl(1-->2)]]-beta-D-galactopyranoside (1), its 3(Gal)-p-coumaric (2) and 3(Gal)-ferulic (3) esters, and its 4(Gal)-p-coumaric (4) and 4(Gal)-ferulic (5) esters. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|