Flavonoids from Andrographis viscosula
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概要
- 論文の詳細を見る
Phytochemical investigation of the whole plant of Andrographis viscosula has led to the isolation of three new 2'-oxygenated flavonoids, (2R)-5-hydroxy-7,2',3'-trimethoxyflavanone (1), 7,2',5'-trimethoxyflavone (2), 5,7,2',3'-tetramethoxyflavone (3), and eight known flavones, 5,7,2'-trimethoxyflavone (4), 5,7,2',4',5'-pentamethoxyflavone (5), echioidinin (6), 5,2',6'-trihydroxy-7-methoxyflavone (7), 5-hydroxy-7,2'-dimethoxyflavone (8), echioidin (9), echioidinin 5-O-glucoside (10), and 5,2',6'-trihydroxy-7-methoxyflavone 2'-0-glucoside (11). The structures of 1-11 were elucidated by physical and spectral methods, including extensive 2D NMR studies. The presence of 2'-oxygenated flavonoids is apparently restricted to Andrographis species in Acanthaceae. Therefore, 2'-oxygenated flavonoids are regarded as chemotaxonomic markers of Andrographis genus in the Acanthaceae family.
- 公益社団法人日本薬学会の論文
- 2003-12-01
著者
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Wu T‐s
National Cheng Kung Univ. Tainan Twn
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Rao Chunduri
Natural Products Division Department Of Chemistry Sri Venkateswara University
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WU Tian-Shung
Department of Chemistry, National Cheng-Kong University
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Wu Tian-shung
Department Of Chemistry National Cheng Kung University
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Wu Tian-shung
Dep. Of Chemistry National Cheng Kung Univ.
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Wu Tian-shung
Department Of Applied Chemistry Providence College Of Arts And Science
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DAMU Amooru
Department of Chemistry, National Cheng Kung University
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KUO Ping-Chung
Department of Biotechnology, National Huwei University of Science and Technology
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RAO Yerra
Natural Products Division, Department of Chemistry, Sri Venkateswara University
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RAO Alahari
Natural Products Division, Department of Chemistry, Sri Venkateswara University
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VENKATESAN Shanmuganathan
Natural Products Division, Department of Chemistry, Sri Venkateswara University
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Kuo Ping-chung
Department Of Biotechnology National Huwei University Of Science And Technology
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Kuo Ping-chung
Department Of Biotechnology National Formosa University
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Rao Yerra
Natural Products Division Department Of Chemistry Sri Venkateswara University
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Rao Alahari
Natural Products Division Department Of Chemistry Sri Venkateswara University
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Damu Amooru
Department Of Chemistry National Cheng Kung University
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Venkatesan Shanmuganathan
Natural Products Division Department Of Chemistry Sri Venkateswara University
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