New Acylated Flavonol Glucosides in Allium tuberosum ROTTLER(Organic,Chemical)
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概要
- 論文の詳細を見る
Six flavonoids (1-6) were isolated from the leaves of Allium tuberosum ROTTLER (Liliaceae). Their structures were characterized as 3-O-β-sophorosyl-7-O-β-D-(2-O-feruloyl)glucosylkaempferol (1), 3,4'-di-O-β-D-glucosyl-7-O-β-D-(2-O-feruloyl)glucosylkaempferol (2), 3-O-β-D-(2-O-feruloyl)-glucosyl-7,4'-di-O-β-D-glucosylkaempferol (3), 3.4'-di-O-β-D-glucosylkaempferol (4), 3,4'-di-O-β-D-glucosylquercetin (5) and 3-O-β-sophorosylkaempferol (6) by examination of their physicochemicai properties, On partial acid hydrolysis, 1 gave 7-O-β-D-(2-O-feruloyl)glucosylkaempferol (10), and on enzymatic hydrolysis, 1 and 3 afforded 3-O-β-D-glucosyl-7-O-β-D-(2-O-feruloyl)-glucosylkaempferol (11) and 3-O-β-D-(2-O-feruloyl)glucosylkaempferol (14), respectively. At pH 7.0 or at pH 11.0, or both, the 2-O-feruloyl group of 1, 2, 10 and 11 migrated to give the corresponding 6-O-feruloyl derivatives (15, 17, 16 and 18). Compounds 1-3 and their derivatives 10, 11, 14, 15, 16, 17 and 18 are new acylated flavonol glucosides.
- 公益社団法人日本薬学会の論文
- 1987-01-25
著者
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斎藤 崇
Research Institute Daiichi Seiyaku Co. Ltd.
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門矢 静夫
Research Institute Daiichi Seiyaku Co. Ltd.
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吉田 孝利
Research Institute, Daiichi Seiyaku Co., Ltd.
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吉田 孝利
Research Institute Daiichi Seiyaku Co. Ltd.
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- New Acylated Flavonol Glucosides in Allium tuberosum ROTTLER(Organic,Chemical)