[Studies on chemical constituents from stem barks of Fraxinus paxiana].
OBJECTIVE
To investigate the chemical constituents of Fraxinus paxiana.


METHODS
The chemical constituents were isolated and purified by chromatographic techniques and the structures of the compounds were identified with or by spectroscopic methods.


RESULTS
Fifteen compounds were obtained from the methanol extract of F. paxiana and their structures were elucidated as esculin (1), esculetin (2), fraxin (3), fraxetin (4), salidroside (5), osmanthuside H (6), liriodendrin (7), 3-(4-beta-D-glucopyranosyloxy-3-methoxy)-phenyl-2E-propenol (8), threo-syringylglycerol (9), euscaphic acid (10), 3-hydroxy-1-(4-hydroxy-3, 5-dimethoxyphenyl)-1-propanone (11), omega-hydroxypropioguaiacone (12), sinapyladehyde (13), betulinic acid (14) and mannitol (15).


CONCLUSIONS
All compounds were obtained from this plant for the first time.
Ma
Zhi-jing
ZJ
Guangzhou Zhongyi Pharmaceutical Co. Ltd, Guangzhou 510620, China. zhjma9938@126.com
Zhao
Zhi-juan
ZJ
D003374:Coumarins / Q000737:chemistry; D004929:Esculin / Q000737:chemistry; D031661:Fraxinus / Q000737:chemistry*; D005663:Furans / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry; D006027:Glycosides / Q000737:chemistry; D008353:Mannitol / Q000737:chemistry; D000432:Methanol / Q000737:chemistry; D010636:Phenols / Q000737:chemistry; D024301:Plant Bark / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry; D014468:Umbelliferones / Q000737:chemistry
D003374:Coumarins; D005663:Furans; D005960:Glucosides; D006027:Glycosides; D010636:Phenols; D014315:Triterpenes; D014468:Umbelliferones; C080857:osmanthuside H; D004929:Esculin; D008353:Mannitol; C007695:euscaphic acid; C068512:liriodendrin; C105671:fraxetin; C009172:rhodioloside; C007628:esculetin; C080614:fraxin; D000432:Methanol