[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.
Xue
Hui-Qing
HQ
Shanxi College of Traditional Chinese Medicine, Taiyuan 030024, China. xuehuiqing@sina.com
Yang
Hong-Peng
HP
Wang
Han-Qing
HQ
Xin
Xue-Lei
XL
Wu
Shui-Xian
SX
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