[Studies on the constituents from the herba of Erigeron acer].
OBJECTIVE
To investigate the chemical constituents of the aerial part of Erigeron acer.


METHODS
The chemical constituents were isolated by various columns and thin layer chromatographic methods. The structures were identified by spectral data.


RESULTS
Five compounds were isolated and identified as alpha-amyrin (1), beta-amyrin (2), caffeic acid (3), quercetin (4), 4'-hydroxywogonin-7-O-beta-D-glucuronic acid glycoside (5).


CONCLUSIONS
The five compounds are obtained from this plant for the first time. The signals of 13C-NMR of the compound(5) are reassigned by means of DEPT, HMQC, HMBC, the signals of 1H-NMR of 2" - 5"-H of the glucuronic acid moiety are assigned by means of HMBC, HMQC, 1H-1H COSY for the first time.
Yan
Ming-Ming
MM
Changchun University of Traditional Chinese Medicine, Changchun 130117, China. yanmm595@yahoo.com.cn
Zhao
Da-Qing
DQ
Shao
Shuai
S
Liu
Wan-Hui
WH
Bi
Sheng-Nan
SN
Wang
Hai-Jing
HJ
D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification*; D002855:Chromatography, Thin Layer; D049919:Erigeron / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000737:chemistry / Q000302:isolation & purification*
D002109:Caffeic Acids; D009828:Oleanolic Acid; D011794:Quercetin; C036380:beta-amyrin; C040048:caffeic acid