[Chemical constituents of flavonoids from Apocynum venetum].
OBJECTIVE
To study the chemical constituents of flavonoids from Apocynum venetum L.


METHODS
The compounds from water extracts were isolated by HPD-100 MCI-gel, polyamide, silica and Sephadex LH-20. Their structrues were characterized by chemical methods and spectroscopic methods.


RESULTS
The five compounds were identified to be trifolin (I), hyperroside (III), hyperin (V), isoquercetin-6'-o-acetate (VII) and isoquercetin (VIII).


CONCLUSIONS
Compound I and compound VII are isolated from Apocynum venetum L. for the first time.
Cheng
Xiu-li
XL
School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 031000, China.
Zhang
Su-qiong
SQ
Li
Qing-shan
QS
D030010:Apocynum / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D044948:Flavonols / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*
D004365:Drugs, Chinese Herbal; D044948:Flavonols; D011794:Quercetin