[Study on chemical constituents of Portulaca oleracea].
OBJECTIVE
To investigate chemical constituents of Portulaca oleracea.


METHODS
The constituents were isolated by various column chromatography methods, and their structures were elucidated by spectral analysis.


RESULTS
Five compounds were isolated from 70% ethanol extract and their structures were elucidated as oleracein A(1), oleracein B(2), oleracein E(3), hesperidin (4) and caffeic acid (5).


CONCLUSIONS
Compound 4 and 5 are isolated from Portulaca oleracea for the first time.
Yang
Zi-juan
ZJ
School of Chinese Material Medica, Jilin Agricultural University, Changchun 130118, China.
Zheng
Yi-nan
YN
Xiang
Lan
L
D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification*; D006569:Hesperidin / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D031822:Portulaca / Q000737:chemistry*
D002109:Caffeic Acids; D006569:Hesperidin; C040048:caffeic acid