[Flavones from Helichrysi flos syn].
OBJECTIVE
To study the chemical constituents of Helichrysi flos syn.


METHODS
The chemical constituents were isolated by various methods of isolation (silica gel, ODS column chromatography and HPLC) and their structure were elucidated by the analysis of spectral data and chemical properties.


RESULTS
Seven flavone compounds were isolated from the MeOH extract of Helichrysi flos syn. The chemical structures were elucidated as quercetin-3-O-beta-D-glucopyranoside (1), apigenin-7-O-beta-D-gentiobioside (2), quercetin-3-O-rutinoside (3), apigenin-7,4'-di-O-beta-D-glucopyranoside (4), kaempferol-3,4'-di-O-beta-D-glucopyranoside (5), quercetin-3,3'-di-O-beta-D-glucopyranoside (6), apigenin-7-O-beta-D-glucopyranosiduronic acid methyl ester (7).


CONCLUSIONS
Compounds 2, 4-7 were obtained from the genus Helichrysum for the first time.
Liu
Wenjuan
W
Shanxi Biological Application Vocational Technical College, Taiyuan 030031, China.
Wu
Lijun
L
D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal / Q000032:analysis; D047309:Flavones / Q000032:analysis*; D036562:Helichrysum / Q000737:chemistry*
D004365:Drugs, Chinese Herbal; D047309:Flavones