Chemical study on ethyl acetate portion of Ehretia thyrsiflora, boraginaceae species of Kudingcha.
- Author:
Li LI
1
;
Li-jia XU
;
Zhen-dan HE
;
Qin-qiong YANG
;
Yong PENG
;
Pei-gen XIAO
Author Information
- Publication Type:Journal Article
- MeSH: Acetates; analysis; Boraginaceae; chemistry; Drugs, Chinese Herbal; chemistry
- From: China Journal of Chinese Materia Medica 2008;33(17):2121-2123
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the chemical constituents of Ehretia thyrsiflora.
METHODCompounds were isolated by using silica gel, Sephadex LH-20 and RP-C18 chromatography; their structures were elucidated by means of spectral data analysis.
RESULTSeven compounds were isolated and identified as methyl rosmarinate (1), caffeic acid (2), quercetin (3), kampferol (4), kaempferol 3-O-alpha-D-arabinoside (5), quercetin 3-O-alpha-D-arabinoside (6), and p-hydroxy benzoic acid (7).
CONCLUSIONAll these compounds were isolated from E. thyrsiflora for the first time. Compounds 2-7 were isolated from genus Ehretia for the first time.
