柔弱翠雀花中的酰化黄酮四糖苷。
Acylated flavonol tetraglycosides from Delphinium gracile.
机构信息
Departamento de Química Organica, Instituto Universitario de Bio-Orgánica Antonio González, La Laguna, Tenerife, Spain.
出版信息
Phytochemistry. 2010 Mar;71(4):463-8. doi: 10.1016/j.phytochem.2009.11.011. Epub 2009 Dec 22.
An ethanol extract of the aerial parts of Delphinium gracile DC. yielded five flavonol glycosides quercetin-3-O-{[beta-d-xylopyranosyl (1-->3)-4-O-(E-p-caffeoyl)-alpha-l-rhamnopyranosyl (1-->6)][beta-d-glucopyranosyl (1-->2)]}-beta-d-glucopyranoside (1), quercetin-3-O-{[beta-d-xylopyranosyl (1-->3)-4-O-(E-p-coumaroyl)-alpha-l-rhamnopyranosyl (1-->6)][beta-d-glucopyranosyl (1-->2)]}-beta-d-glucopyranoside (2), quercetin-3-O-{[beta-d-xylopyranosyl (1-->3)-4-O-(Z-p-coumaroyl)-alpha-l-rhamnopyranosyl (1-->6)][beta-d-glucopyranosyl (1-->2)]}-beta-d-glucopyranoside (3), kaempferol-3-O-{[beta-d-glucopyranosyl (1-->3)-4-O-(E-p-coumaroyl)-alpha-l-rhamnopyranosyl (1-->6)][beta-d-glucopyranoside-7-O-(4-O-acetyl)-alpha-l-rhamnopyranoside (4) kaempferol-3-O-{[beta-d-glucopyranosyl (1-->3)-4-O-(E-p-coumaroyl)-alpha-l-rhamnopyranosyl (1-->6)][beta-d-glucopyranoside-7-O-(4-O-acetyl)-alpha-l-rhamnopyranoside (5) in addition to 4-(beta-d-glucopyranosyloxy)-6-methyl-2H-pyran-2-one (6) and rutin. Structures were elucidated by spectroscopic methods.
纤细翠雀花地上部分的乙醇提取物得到了 5 种黄酮醇糖苷：槲皮素-3-O-[[β-D-吡喃木糖基(1→3)-4-O-(E-对咖啡酰基)-α-L-鼠李吡喃糖基(1→6)][β-D-吡喃葡萄糖基(1→2)]]-β-D-吡喃葡萄糖苷（1）、槲皮素-3-O-[[β-D-吡喃木糖基(1→3)-4-O-(E-对香豆酰基)-α-L-鼠李吡喃糖基(1→6)][β-D-吡喃葡萄糖基(1→2)]]-β-D-吡喃葡萄糖苷（2）、槲皮素-3-O-[[β-D-吡喃木糖基(1→3)-4-O-(Z-对香豆酰基)-α-L-鼠李吡喃糖基(1→6)][β-D-吡喃葡萄糖基(1→2)]]-β-D-吡喃葡萄糖苷（3）、山柰酚-3-O-[[β-D-吡喃葡萄糖基(1→3)-4-O-(E-对香豆酰基)-α-L-鼠李吡喃糖基(1→6)][β-D-吡喃葡萄糖苷-7-O-(4-O-乙酰基)-α-L-鼠李吡喃糖苷（4）、山柰酚-3-O-[[β-D-吡喃葡萄糖基(1→3)-4-O-(E-对香豆酰基)-α-L-鼠李吡喃糖基(1→6)][β-D-吡喃葡萄糖苷-7-O-(4-O-乙酰基)-α-L-鼠李吡喃糖苷（5），此外还有 4-(β-D-吡喃葡萄糖基氧基)-6-甲基-2H-吡喃-2-酮（6）和芦丁。结构通过光谱方法阐明。
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