[Studies on water-soluble constituents of Echinacea prupurea].
OBJECTIVE
To study the water-soluble constituents of Echinacea purpurea.


METHODS
The compounds were isolated by chromatography method and their structures were identified on the basis of spectral analyses.


RESULTS
Five compounds were identified as 2-(4-hydroxylphenyl)-ethyl-O-alpha-L-rhamnopy-ranoasyl-(1-->6)-beta-D- glucopyranoside, named echipuroside A 1); (6S, 9R)-6-hydroxy-3-one-alpha-inonol-9-O-beta-D-glucopyranoside 2), ampelopsisionoside 3); phenylmethyl-6-O-beta-D-xylopyranosyl(1-->6)-beta-D-glucopyranoside 4) and phyenylmethyl-beta-D-glucopyranoside 5).


CONCLUSIONS
Compound 1 is a new compound, the others were isolated from this plant for the first time.
Li
Ji-ren
JR
Department of Natural Medicine, School of Pharmaceutical Sciences, Peking University, Beijing 100083, China.
Wang
Bin
B
Qiao
Liang
L
Ai
Tie-min
TM
Zhao
Yu-ying
YY
D003512:Cyclohexanones / Q000737:chemistry / Q000302:isolation & purification; D004187:Disaccharides / Q000737:chemistry / Q000302:isolation & purification*; D020900:Echinacea / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D012995:Solubility; D013729:Terpenes; D014867:Water / Q000737:chemistry
C479285:2-(4-hydroxyphenyl)ethyl-O-rhamnopyranosyl-1-6-glucopyranoside; C479284:6-hydroxy-3-one-alpha-inolol-9-O-glucopyranoside; D003512:Cyclohexanones; D004187:Disaccharides; D005960:Glucosides; D013729:Terpenes; D014867:Water