[Studies on the chemical constituents of Lithocarpus polystachyus].
OBJECTIVE
To study the chemical constituents from Lithocarpus polystachyus.


METHODS
Compounds were isolated and purified with silica gel, and there structures were identified by chemical property and spectral data.


RESULTS
Nine compounds were isolated as phloridzin (I), phloretin (II), dihydrochalcone-2'-beta-D-glucopyranoside (III), daucossterol (IV), beta-sitosterol (V), quercetin (VI), luteolin (VII), quercitrin (VI), oleanolic acid (IX).


CONCLUSIONS
Compounds II, IV - IX are isolated from this plant for the first time.
Li
Sheng-Hua
SH
Key Laboratory of Hunan Province for Study and Utilization of Ethnic Medicinal Plant Resources, Department of Life Sciences, Huaihua University, Huaihua 418008, China.
Wu
Xian-Jin
XJ
Yang
Qing-Dan
QD
Chen
Yuan-Yang
YY
Zhou
Nan
N
D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification*; D002855:Chromatography, Thin Layer; D029962:Fagaceae / Q000737:chemistry*; D047311:Luteolin / Q000737:chemistry / Q000302:isolation & purification; D009828:Oleanolic Acid / Q000737:chemistry / Q000302:isolation & purification; D010693:Phloretin / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry; D011794:Quercetin / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification*; D017550:Spectroscopy, Fourier Transform Infrared
D000975:Antioxidants; D012855:Sitosterols; C012526:quercitrin; D009828:Oleanolic Acid; D011794:Quercetin; D047311:Luteolin; D010693:Phloretin