A new flavonoid glycoside from leaves of Eucalyptus robusta.
- Author:
Xi-feng GUAN
;
Qian-yi GUO
;
Xiao-jun HUANG
;
Ying WANG
;
Wen-cai YE
- Publication Type:Journal Article
- MeSH:
Eucalyptus;
chemistry;
Flavonoids;
chemistry;
isolation & purification;
Glycosides;
chemistry;
isolation & purification;
Plant Leaves;
chemistry
- From:
China Journal of Chinese Materia Medica
2015;40(24):4868-4872
- CountryChina
- Language:Chinese
-
Abstract:
A new flavonoid glycoside, (-)-2S-8-methyl-5,7,4'-trihydroxyflavanone-7-O-β-D-glucopyranoside (1), along with five known ones, quercetin-3-O-(2"-galloyl)-α-L-arabinoside (2), kaempferol-3-O-α-L-arabinoside (3), guaijaverin (4), trifolin (5) and hyperin (6), was isolated from the leaves of Eucalyptus robusta. Their structures with absolute configurations were elucidated by NMR, HR-ESI-MS, CD spectra data and physicochemical methods. In addition, 2-6 were isolated from E. robusta for the first time.
