鬼针草中一个新的查耳酮甙

从鬼针草BidenspilosaL .地上部分的丙酮提取物中 ,分离鉴定了 1 8个化合物 ,其中包括一个新的查耳酮甙类化合物 (α,3,2′,4′ tetrahydroxy 2′ O β D glucopyranosylchalcone,2 )。其它化合物分别鉴定为butein (1 ) ,okanin 4 methylether 3′ O β glucoside (3) ,sulfuretin (4) ,6 ,7,3′,4′ tetrahydroxyaurone (5) ,海生菊苷 (maritimein ,6) ,(Z ) 6 O (6″ acetyl β D glucopyr anosyl) 6 ,7,3′,4′ tetrahydroxy aurone (7) ,(Z ) 6 O (4″,6″ diacetyl β D glucopyranosyl) 6 ,7,3′,4′ tetrahydroxy aurone (8) ,(Z ) 6 O (3″,4″,6″ triacetyl β D glucopyranosyl) 6 ,7,3′,4′ tetrahydroxy aurone (9) ,木犀草素 (luteolin ,1 0 ) ,槲皮素 (quercetin,1 1 ) ,异槲皮苷 (iso quercitrin,1 2 ) ,芦丁 (rutin,1 3) ,黄芪苷 (astragalin,1 4 ) ,quercetin 3,4′ dimethylether 7 O rutinoside (1 5) ,反式丁烯二酸 (1 6) ,2 β D glucopyranosyloxy 1 hydroxy trideca 3 ,5,7,9,1 1 pentayne (1 7)和 3 β D glucopyranosyloxy 1 hydroxy 6 (E ) tetradecene 8,1 0 ,1 2 triyne (1 8)。

A New Chalcone Glycoside from Bidens pilosa

Eighteen compounds,including a new chalcone glycoside (2),were isolated from the aerial parts of Bidens pilosa L.Their structures were elucidated as butein (1),α,3,2′,4′-tetrahydroxy-2′-O-β-D-glucopyranosylchalcone (2),okanin 4-methyl ether-3′-O-β-glucoside (3),sulfuretin (4),6,7,3′,4′-tetrahydroxyaurone (5),maritimein (6), (Z)-6-O-(6″-acetyl-β-D-glucopyranosyl)-6,7,3′,4′-tetrahydroxy-aurone (7), (Z)-6-O-(4″,6″-diacetyl-β-D-glucopyranosyl)-6,7,3′,4′-tetrahydroxy-aurone (8),(Z)-6-O-(3″,4″,6″-triacetyl-β-D-glucopyranosyl)-6,7,3′,4′-tetrahydroxy-aurone (9),luteolin (10),quercetin (11),isoquercitrin (12),rutin (13),astragalin (14),quercetin-3,4′-dimethyl ether-7-O-rutinoside (15),E-butenedioic acid (16),2-β-D-glucopyranosyloxy-1-hydroxy-trideca-3,5,7,9,11-pentayne (17),3-β-D-glucopyran osyloxy-1-hydroxy-6(E)-tetradecene-8,10,12-triyne (18),respectively,based on the spectral analysis.