[Studies on antiviral flavonoids in yinqiaosan powder].
OBJECTIVE
To study the chemical constituents in Yinqiaosan Powder that have antiviral action on influenza.


METHODS
Isolation of the constituents by different kinds of column chromatography and elucidation of their structures by chemical and spectral methods.


RESULTS
Seven flavonoids were obtained, and six of them were identified as linarin, acacetin, hesperidin, isoquiritigenin, isoquiritin and hyperoside respectively.


CONCLUSIONS
Linarin and acacetin were isolated from Yinqiaosan Powder for the first time.
Shi
Y
Y
School of Chinese Pharmacology, Beijing University of Chinese Medicine, Beijing 100029, China.
Shi
R B
RB
Liu
B
B
Lu
Y R
YR
D000998:Antiviral Agents / Q000032:analysis*; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D047309:Flavones; D005419:Flavonoids / Q000032:analysis*; D006027:Glycosides / Q000032:analysis; D006569:Hesperidin / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry*; D011208:Powders
D000998:Antiviral Agents; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D047309:Flavones; D005419:Flavonoids; D006027:Glycosides; D011208:Powders; D006569:Hesperidin; C008282:linarin; C023717:acacetin