Chemical constituents of Laggera pterodonta.
- Author:
Bailian LIU
1
;
Ting ZHANG
;
Xiaoqi ZHANG
;
Wencai YE
;
Yaolan LI
Author Information
- Publication Type:Journal Article
- MeSH: Asteraceae; chemistry
- From: China Journal of Chinese Materia Medica 2010;35(5):602-606
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the chemical constituents of Laggera pterodonta.
METHODThe 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.
RESULTNineteen 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).
CONCLUSIONCompounds 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.
