Chemical constituents from stem barks of Vernonia cumingiana / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 1421-1424, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-328107
ABSTRACT
The chemical constituents from the stem barks of Vernonia cumingiana were investigated. Various chromatographic techniques such as silica gel chromatography, Sephadex LH-20, ODS column chromatography and HPLC were used to isolate and purify the constituents. The structures were elucidated by spectral methods. Twelve compounds were isolated from the 95% ethanol extract and their structures were elucidated as methyl 3,5-dicaffeoylquinate (1), methyl 3,4-dicaffeoylquinate (2), ethyl 3,4-dicaffeoylquinate (3), methyl 3,4,5-tricaffeoylquinate (4), stigmasterol (5), alpha-spinasterol (6), beta-sitosterol (7), 24-methylene-lanosta-9 (11)-en-3beta-acetate (8), ethyl gallate (9), di-n-butyl-phthalate (10), stearic acid (11) and palmitic acid (12). Compounds 1-12 were isolated from this plant for the first time.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Plant Extracts
/
Chemistry
/
Plant Stems
/
Plant Bark
/
Vernonia
Language:
Chinese
Journal:
China Journal of Chinese Materia Medica
Year:
2010
Type:
Article
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