Highly Oxygenated Flavonoids from Polygonum orientale
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概要
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Nine highly oxygenated flavonoids, having eight oxygen functional groups at C-3,3', 4', 5,5', 6,7 and 8,were isolated from Polygonum orientale. Of these compounds, seven (1,2,3a, 4,5a, 6 and 7a) are new compounds and the structures were determined on the basis of spectral evidence as 3,3', 5,6,7,8-hexamethoxy-4', 5'-methylenedioxy-(1), 5-hydroxy-3,3', 6,7,8-pentamethoxy-4', 5'-methylenedioxy-(2a), 3'-hydroxy-3,4', 5,5', 6,7,8-heptamethoxy-(3a), 3,3', 5,8-tetramethoxy-4', 5', 6,7-bis (methylenedioxy)-(4), 3'-hydroxy-3,4', 5,5', 8-pentamethoxy-6,7-methylenedioxy-(5a), 3,3', 4', 5,5', 8-hexamethoxy-6,7-methylenedioxy-(6) and 3', 5-dihydroxy-3,4', 5', 8-tetramethoxy-6,7-methylenedioxyflavone (7a).
- 公益社団法人日本薬学会の論文
- 1982-04-25
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