Studies on the Constituents of Brazilian Propolis. II
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概要
- 論文の詳細を見る
Seven new p-coumaric acid derivatives along with seventeen known compounds, including four flavonoids, one prenylated phenolic acid, four diterpenoic acids, one lignan, two p-coumaric acid esters and five cinnamic acid derivatives, were isolated from the ethyl acetate soluble fraction of 75% ethanol extract of Brazilian propolis. New compounds were elucidated as (E)-2,3-dihydroconiferyl p-coumarate, (E)-3-{2,3-dihydro-2-[2-[(E)-p-coumaroyloxy]-1-methylethyl]-5-benzofuranyl}-2-propenoic acid, (E)-4-(2,3-dihydrocinnamoyloxy)cinnamic acid, (E)-3-(2,2-dimethyl-3,4-dihydro-3-hydroxy-2H-1-benzopyran-6-yl)-2-propenoic acid, (E)-3-[2,3-dihydro-2-(1-methylethenyl)-5-benzofuranyl]-2-propenoic acid, (E)-3-[2,3-dihydro-2-(1-methylethenyl)-7-prenyl-5-benzofuranyl]-2-propenoic acid and (E)-3-{3-[(E)-4-(2,3-dihydrocinnamoyloxy)-3-methyl-2-butenyl]-4-hydroxy-5-prenylphenyl}-2-propenoic acid, on the basis of spectral evidence and chemical reaction. Five compounds : dihydrokaempferol (aromadendrin), 6-methoxykaempferol, 4-hydroxy-3-prenylbenzoic acid, plicatin B and capillartemisin A, were isolated from propolis for the first time.
- 社団法人日本薬学会の論文
- 1999-10-15
著者
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WARASHINA Tsutomu
Institute for Environmental Sciences, University of Shizuoka
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TAZAWA Shigemi
Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
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WARASHINA Tsutomu
Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
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NORO Tadataka
Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
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Noro Tadataka
Graduate School Of Nutritional And Environmental Sciences University Of Shizuoka
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Noro T
Institute For Environmental Sciences University Of Shizuoka
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Tazawa S
Graduate School Of Nutritional And Environmental Sciences University Of Shizuoka
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Warashina T
Institute For Environmental Sciences University Of Shizuoka
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Warashina Tsutomu
Graduate School Of Nutritional And Environmental Sciences University Of Shizuoka
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