[Chemical constitutents of Bauhinia aurea].
OBJECTIVE
To study the chemical constituents of Bauhinia aurea.


METHODS
The compounds were isolated with column chromatography. The structures were determined by MS and NMR spectroscopic techniques.


RESULTS
Nine aromatic acid derivatives, two triterpenes and three steroids were isolated from the 90% ethanolic extract and their structures were identified as 3,4-di-hydroxybenzoic acid (1), 4-hydroxybenzoic acid (2), 3-hydroxy-4-methoxy-benzoic acid (3), 4-hydroxy-3-methoxybenzoic acid (4) , gallic acid (5) , methyl gallate (6) , ethyl gallate (7) , lupeol (8) , lupenone (9) , stigmast4-en-3-one (10) beta-sitosterol (11) and daucosterol (12).


CONCLUSIONS
This is the first report of chemical constituents from B. aurea. Compounds were isolated from this genus for the first time, except 5,8,11 and 12.
Shang
Xiao-ya
XY
Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100050, China.
Li
Shuai
S
Wang
Ying-hong
YH
Wang
Su-juan
SJ
Yang
Yong-chun
YC
Shi
Jian-gong
JG
D036481:Bauhinia / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010226:Parabens / Q000737:chemistry / Q000302:isolation & purification*; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D014641:Vanillic Acid / Q000737:chemistry / Q000302:isolation & purification*; D000094042:Lupanes
D010226:Parabens; D014315:Triterpenes; D014641:Vanillic Acid; C470592:lupenone; D000094042:Lupanes; C038193:4-hydroxybenzoic acid