[Studies on the flavonoid constituents in herb of Eremosparton songoricum].
OBJECTIVE
To study the chemical constituents from Eremosparton songoricum.


METHODS
The compounds were isolated with silica gel column chromatography and the structures of these compounds were elucidated by means of spectral analysis.


RESULTS
The seven compounds were identified as: 5,7,4'-trihydroxyflavone (apigenin) (I), 5-hydroxy-7,4'-dimethoxyflavone (II), 5,7-dihydroxy-3',4'-dimethoxyflavone (III), 5,7-dihydroxy-4'-methoxyflavone (acacetin) (IV), 5,7,4'-trihydroxy-3'-methoxyflavone (chrysoeriol) (V), 5,6,3',4'-tetrahydroxy-7-methoxyflavone (pedalitin) (VI) and 5,4'-dihydroxy-7,3'-dimethoxyflavone-4'-O-D-glucoside (flavogadorinin) (VII).


CONCLUSIONS
These constituents were obtained from E. songoricum for the first time.
Ding
Lan
L
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, The Chinese Academy of Science, Lanzhou 730000, China.
Liu
Guo-an
GA
He
Li
L
Wang
Han-qing
HQ
D047310:Apigenin / Q000737:chemistry / Q000302:isolation & purification*; D007887:Fabaceae / Q000737:chemistry*; D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*
D047309:Flavones; D005419:Flavonoids; D047310:Apigenin; C023717:acacetin; C007054:chrysoeriol