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Chemical constituents in roots of Osbeckia opipara

Wang, H.; Wang, Y.; Shi, Y.; Li, X.; Long, C.

Zhongguo Zhong Yao Za Zhi 34(4): 414-418

2009

ISSN/ISBN: 1001-5302
PMID: 19459302
Document Number: 631008
To study the chemical constituents of the roots of Osbeckia opipara. Repeated column chromatography over silica gel, RP-18 and Sephadex LH-20, and preparative thin layer chromatography(PTLC) were used to isolate the compounds, whose structures were determined by spectroscopic methods by direct comparing spectral data with those reported references. From the MeOH extract of the roots O. opipara, twelve compounds were isolated and identified as follows: lasiodiplodin (1) , de-O-methyllasiodiplodin (2), 2, 3- dihydro-2-hydroxy-2, 4-dimethyl-5-trans-propenylfuran-3-one (3), integracin (4), 5alpha, 8alpha-epidioxy-(22E, 24R)-ergosta-6, 22-dien-3beta-ol (5), 3, 3', 4'-tri-O-methylellagic acid (6), 5-hydroxymethyl furaldehyde (7), vomifolio (8) , betulintic acid (9), 2alpha-hydroxyursolic acid (10), (24R)-stigmast-4-ene-3-one (11), and eugenitin (12). Compounds 1-12 were isolated from O. opipara for the first time.

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