[Studies on chemical constituents from stem bark of Trewia nudiflora].
OBJECTIVE
To study the chemical constituents from the stem bark of Trewia nudiflora.


METHODS
The chemical constituents were isolated by silica gel and sephadex LH - 20 column chromatography, and the structures were elucidated by means of spectral analysis.


RESULTS
Ten compounds were obtained from EtOAc fraction of EtOH extract and identified as stigmast-4-en-6beta-ol-3-one (1), stigmast-4-en-6alpha-ol-3-one (2), 7beta-hydroxysitosterol (3), 7alpha-hydroxysitosterol (4), schleicheol 2 (5), taraxerone (6), abbeokutone (7), beta-hydroxypropiovanillone (8), o-vanillyl alcohol (9), glycerol monopalmitate (10).


CONCLUSIONS
Compounds 1-5 and 7-9 were isolated from this plant for the first time.
Wu
Shao-Hua
SH
Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, China. shwu123@126.com
Shen
Yue-Mao
YM
Chen
You-Wei
YW
Yang
Li-Yuan
LY
Li
Shao-Lan
SL
Li
Zhi-Ying
ZY
D002850:Chromatography, Gel; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D036461:Mallotus Plant / Q000737:chemistry*; D024301:Plant Bark / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*
D004365:Drugs, Chinese Herbal