Chemical Evaluation of Betula Species in Japan. IV. Constituents of Betula davurica
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概要
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The constituents of Betula davurica PALL. were identified as follows : Fresh leaves : 12-O-acetylbetulafolieneteraol oxide, I, 5,8-dihydroxy-6,7-dimethoxyflavone, rutin. Outer bark : betulin, betulin 3-O-caffeate, oleanolic acid, oleanolic acid 3-O-acetate, 3β-acetoxy-12α-hydroxyoleanan-28,13β-olide, betulinic acid 3-O-caffeate, oleanolic acid 3-O-caffeate, butulonic acid. Inner bark : acerogenin E, (3R)-3,5'-dihydroxy-4'-methoxy-3', 4"-oxo-1,7-diphenyl-1-hep-tene, 17-O-methyl-7-oxoacerogenin E^*, 15-methoxy-17-O-methyl-7-oxoacerogenin E^*, (-)-lyoniresinol 3α-O-β-D-xylopyranoside (=nudiposide), (+)-catechin, (+)-catechin 7-O-β-D-xylopyranoside, 3,4,5-trimethoxyphenol β-D-apiofuranosyl-(1→6)-β-D-glucopyranoside, monogynol A, roseoside. Root bark : betulin 3-O-caffeate, 3β, 27-dihydroxyolean-12-en-28-oic acid 27-O-caffeate. The two compounds with an asterisk are new.
- 1998-01-15
著者
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Tanaka N
Department Of Pharmacology School Of Pharmaceutical Sciences Mukogawa Women's University
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Tanaka Naoko
武庫川女子大学 薬学部薬理学
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中西 務
Faculty Of Pharmaceutical Sciences Setsunan University
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Fuchino H
Sci. Univ. Tokyo Tokyo Jpn
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Fuchino Hiroyuki
Faculty Of Pharmaceutical Sciences Science University Of Tokyo
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Fuchino Hiroyuki
Research Center For Medicinal Plant Resources National Institute Of Biomedical Innovation
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SHIMIZU Midori
Faculty of Pharmaceutical Sciences, Tokyo University of Science
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Shimizu Midori
Faculty Of Pharmaceutical Sciences Science University Of Tokyo
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Tanaka N
School Of Pharmaceutical Sciences Mukogawa Women S University
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Fuchino Hiroyuki
Res. Center For Medicinal Plant Resources National Inst. Of Biomedical Innovation
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Satoh T
Tokyo Univ. Sci. Tokyo Jpn
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TANAKA Nobutoshi
Faculty of Pharmaceutical Sciences, Science University of Tokyo
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SATOH Tetsuya
Faculty of Pharmaceutical Sciences, Science University of Tokyo
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Satoh Takashi
Yakuhan Pharmaceutical Co. Ltd.
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Tanaka Nobutoshi
Faculty Of Pharmaceutical Sciences Science University Of Tokyo
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Nishimata Toyoki
R & D Division Daiichi Sankyo Co. Ltd.
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Fuchino H
Research Center For Medicinal Plant Resources National Institute Of Biomedical Innovation
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Tanaka Nobutoshi
Faculty Of Engineering Hokkaido University
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