Three New Orcinol-Conjugated Hydrolysable Tannins from the Leaves of Cleyera japonica
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概要
- 論文の詳細を見る
Three new orcinol (3-hydroxy-5-methylphenol)-conjugated hydrolysable tannins, together with two known compounds were isolated from the leaves of Cleyera japonica (CJ), and have been tentatively named cleyeratannin A (1), cleyeratannin B (2) and cleyeratannin C (3). The chemical structures of these compounds were elucidated using 1 dimensional (1D)/2D NMR and high resolution FAB-MS, and the absolute configuration was confirmed by circular dichroism (CD). To evaluate their anti-oxidative activities, 1,1-diphenyl-2-picrylhydrazyl (DPPH)/free radical scavenging activity and nitroblue tetrazolium (NBT)/superoxide anion scavenging activity were determined.
著者
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Oh Myeong
Department Of Information And Communications Gwangju Institute Of Science And Technology (gist)
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Lee Min
Department Of Aeronautics And Astronautics Kyushu University
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Kim Han
Department Of Biochemistry College Of Life Science And Biotechnology Yonsei University
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Park Kwan
Department Of Anesthesiology And Pain Medicine Ajou University School Of Medicine
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Kim So
Department of Biomedical Engineering, Dongguk University, Seoul 100-715, Korea
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Lee Min
Department of Pharmacognosy, College of Pharmacy, Chung-Ang University
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Oh Myeong
Department of Pharmacognosy, College of Pharmacy, Chung-Ang University
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Kim So
Department of Pharmacognosy, College of Pharmacy, Chung-Ang University
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Kim Manh
Department of Pharmacognosy, College of Pharmacy, Chung-Ang University
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Kim Han
Department of Pharmacognosy, College of Pharmacy, Chung-Ang University
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