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蒙古蒲公英的化学成分研究 被引量:32

Studies on chemical constituents from herbs of Taraxacum mongolicum
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摘要 目的:研究蒙古蒲公英Taraxacummongolicum的化学成分。方法:采用色谱法分离化学成分,波谱法鉴定其结构。结果:从蒙古蒲公英全草中分离并鉴定了44个化合物,包括16个黄酮类衍生物(1~16),15个酚酸类化合物(17~31),1个香豆素类化合物(32),2个木脂素类化合物(33~34),4个倍半萜(35~38),3个三萜类化合物(39~41),1个长链脂肪酸类化合物(42),2个甾体类化合物(43~44)。结论:其中化合物14,15,34,35为新化合物,分别命名为:isoetin-7-O-β-D-glucopyranosyl-2'-O-a-L-arabinopyranoside(14),isoetin-7-O-β-D-glucopyranosyl·2'-0-a-D-glucopyranoside(15),蒙古蒲公英素A(6,9,10-trihydroxy-benzoxanthene-1,2-dicarboxylicacid,mongolicumin A,34),蒙古蒲公英素B(11-hydroxy-2-oxo-guaia-1(10),3,5-trien-8,12-lactone,mongolicuminB,35);化合物1,3,6~13,20~22,30,31为首次从本属植物中分离得到,化合物18,23~29,32,37~42为首次从该种植物中分离得到。 Objective: To investigate the chemical constituents of the herbs of Taraxacum mongolicum. Method: The chemical constituents were isolated by various column chromatographic methods and their structures elucidated mainly by NMR and MS evidences. Result: Forty-four components were obtained and identified were as artemetin (1), quercetin (2), quercetin-3', 4', 7-trimethyl ether (3), luteolin (4), luteolin-7-O-β-D-glucopyranoside (5), luteolin-7-O-β-D-galactopyranoside (6), genkwanin (7), isoetin (8), hesperetin (9), genkwanin-4'-O-β-O-lutinoside (10), hesperidin ( 11 ), quercetin-7-O- [ β-O-glucopyranosyl ( 1→6) -β-0- glucopyranoside ( 12 ), quercetin-3, 7-O-β-D-diglucopyranoside ( 13 ), isoetin-7-O-β-D-glucopyranosyl- 2'-O-a-L-arabinopyranoside ( 14 ), isoetin-7-O-β-D-glucopyranosyl-2'-O-a-D-glucopyranoside ( 15 ), isoetin-7- O-β-D-glucopyranosyl-2'-O-β-D-xyloypyranoside (16), caffeic acid (17), furulic acid (18), 3-O-caffeoylquinic acid (19), 3, 5-di-O-caffeoylquinic acid (20), 3, 4-di-O-caffeoylquinic acid ( 21 ), 4, 5-di-O-caffeoylquinic acid ( 22 ), 1-hydroxymethyl-5-hydroxy-phenyl-2-O-β-D-glucopyranoside ( 23 ), phydroxybenzoic acid (24), p-coumaric acid (25), 3, 5-dihydroxylbenzoic acid (26), gallic acid (27), gallicin (28), syringic acid (29), 3,4-dihydroxybenzoic acid (30), caffeic acid ethyl ester (31), escnletin (32), rufescidride (33) , mongolicumin A [6, 9, 10-trihydroxy-benzoxanthene-1,2-dicarboxylic acid] (34), mongolicumin B [ 11-hydroxy-2-oxo-guaia-1 ( 10), 3, 5-trien-8, 12-1actone] (35), isodonsesquitin A (36), taraxacin (37), sesquiterpene ketolactone (38), taraxasteryl acetate (39), φ-taraxasteryl acelate (40) and lupenol acetate (41), palmitic acid (42), β-sitosterol (43), and stigmasterol (44). Conclusion: Four compounds ( 14, 15, 34 and 35) were new compounds, compounds 1, 3, 6-13, 20-22, 30 and 31 were isolated from this genus for the first time, while compounds 18, 23-29, 32 and 37-42 were obtained from this species for the first time.
出处 《中国中药杂志》 CAS CSCD 北大核心 2008年第10期1147-1157,共11页 China Journal of Chinese Materia Medica
关键词 蒙古蒲公英 化学成分 黄酮 酚酸 香豆素 木脂素 倍半萜 三萜 Taraxacum mongolicum chemical components flanonoids phenolics coumarin lignan sesquiterpenoids triterpenoids
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