[Study on triterpenes from of Ligularia xanthotricha].
OBJECTIVE
To investigate the chemical constituents of Ligularia xanthotricha.


METHODS
Silica gel column chromatography and preparative TLC were employed for the isolation and purification. The structures were identified on the basis of spectral data (IR, EI-MS, 1H-NMR, 13C-NMR, DEPT) and chemical evidence.


RESULTS
Seven compounds were isolated and identified as follows: lupeol (1), lupeol palmitate (2), 3, 28-dihydroxyl-lupeol (3), betulinic acid (4), taraxasterol (5), taraxasteryl palmitat (6) and taraxasteryl acetate(7).


CONCLUSIONS
All the compounds were isolated from this plant for the first time.
Shanxi College of Traditional Chinese Medicine, Taiyuan 030024, China. xuehuiqing@sina.com
Hui-Qing
HQ
Xue
Hong-Peng
HP
Yang
Han-Qing
HQ
Wang
Xue-Lei
XL
Xin
Shui-Xian
SX
Wu
D019659:Asteraceae / Q000737:chemistry*; D002850:Chromatography, Gel; D002855:Chromatography, Thin Layer; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D053978:Pentacyclic Triterpenes; D021241:Spectrometry, Mass, Electrospray Ionization; D013261:Sterols / Q000737:chemistry / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification; D000094062:Betulinic Acid; D000094042:Lupanes
D053978:Pentacyclic Triterpenes; D013261:Sterols; D014315:Triterpenes; D000094062:Betulinic Acid; C092740:taraxasteryl acetate; C079988:taraxasterol; C010480:lupeol; D000094042:Lupanes