Chemical constituents of Laggera pterodonta / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 602-606, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-281758
ABSTRACT
<p><b>OBJECTIVE</b>To study the chemical constituents of Laggera pterodonta.</p><p><b>METHOD</b>The ethanol extract of L. pterodonta was isolated by column chromatogramphy on silica gel, ODS, and Sephadex LH-20 to afford compounds. The structures of the obtained compounds were identified by chemical reactions and spectroscopic analysis.</p><p><b>RESULT</b>Nineteen compounds were separated and identified to be pterodondiol (1), ilicic acid (2), artemitin (3), chrysosplenetin B (4), 3,5-dihydroxy-3',4',6,7-tetramethoxyflavone (5), chrysosplenol D (6), 5,6,4'-trihydroxy-3,7-dimethoxyflavone (7), quercetin (8), tamarixetin (9), patuletin (10), quercetin-3-O-beta-D-galactopyranoside (11), patuletin-3-O-beta-D-glucopyranoside (12), helichrysoside (13), 4,5,7-trihydroxy-6-methoxyflavone-3-O-beta-D-rutinoside (14), kaempferol-3-O-beta-D-glucopyranoside (15), stigmasterol (16), stigmasterol 3-O-beta-D-glucopyranoside (17), 2-hydroxy-benzoic acid (18), beta-sitosterol (19).</p><p><b>CONCLUSION</b>Compounds 5, 7, 9-15, and 17-18 were isolated from this plant for the first time. The 13C-NMR data of compound 7 is reported for the first time.</p>
Full text:
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Index:
WPRIM (Western Pacific)
Main subject:
Chemistry
/
Asteraceae
Language:
Chinese
Journal:
China Journal of Chinese Materia Medica
Year:
2010
Type:
Article
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