Subulatin, an Antioxidic Caffeic Acid Derivative Isolated from the In Vitro Cultured Liverworts, Jungermannia subulata, Lophocolea heterophylla, and Scapania parvitexta(Organic Chemistry)
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概要
- 論文の詳細を見る
The new caffeic acid derivative, subulatin (1), was isolated from in vitro cultured liverworts, Jungermannia subulata, Lophocolea heterophylla, and Scapania parvitexta. The structure of 1 involved two caffeic acids, D-glucose, and 2-carboxy-6-(1,2-dihydroxy-ethyl)-4,5-dihydroxy-5,6-dihydro-4H-pyran. The connectivity of those and the absolute stereochemistry of 1 were elucidated on the basis of spectroscopic evidence. The antioxidative activity of 1 was comparable to that of α-tocopherol. (2'R)-Phaselic acid (2a) and (-)- 9,2" -epiphylloyl-L-malic acid (4) were also isolated from J. subulata and L. heterophylla, respectively. A chiral HPLC analysis of the p-bromobenzoyl-malic acids derived from 2a showed that 2a from J. subulata was unusual (+)-trans-caffeoyl-D-malic acid.
- 社団法人日本農芸化学会の論文
- 2002-02-23
著者
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Tazaki Hiroyuki
Department of Veterinary and Animal Science ,Nippon Veterinary and Life Science University
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Tazaki Hiroyuki
Applied Plant Research Laboratory Yokohama Center Japan Tobacco Inc.
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NABETA Kensuke
Department of Bioresource Science, Obihiro University of Agriculture and Veterinary Medicine
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ITO Mayumi
Department of Bioresource Science, Obihiro University of Agriculture and Veterinary Medicine
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MOTOURI Mutsumi
Technology and Research Institute, Snow Brand Milk Products Co. Ltd.
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Ito M
Kobe Pharmaceutical Univ. Hyogo Jpn
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Nabeta Kensuke
Department Of Agricultural Chemistry Obihiro University Of Agriculture And Veterinary Medicine
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Furuki T
Natural History Museum & Institute
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FUKUSHI Eri
Graduate School of Agriculture, Hokkaido University
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KAWABATA Jun
Graduate School of Agriculture, Hokkaido University
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Kawabata J
Hokkaido Univ. Sapporo Jpn
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Kawabata Jun
Lab. Of Food Biochemistry Div. Of Applied Bioscience Graduate School Of Agriculture Hokkaido Univ.
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Kawabata Jun
Graduate School Of Agriculture Hokkaido University
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Kawabata Jun
Laboratory Of Food Biochemistry Division Of Applied Bioscience Graduate School Of Agriculture Hokkai
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FUJITA Takashi
Technology and Research Institute, Snow Brand Milk Products Co., LTD.
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MIYOSHI Masako
Department of Bioresource Science, Obihiro University of Agriculture and Veterinary Medicine
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FURUKI Tatsuo
Natural History Museum & Institute
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Kawabata Jun
Bioscience And Chemistry Faculty Of Agriculture Hokkaido University
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Tomoyuki Fujita
Division Of Applied Biological Chemistry Graduate School Of Agriculture And Biological Sciences Osak
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Fujita Tomoyuki
Dep. Of Sciences Of Functional Foods Graduate School Of Agriculture Shinshu Univ.
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Motouri Mutsumi
Technology And Research Instittue Snow Brand Milk Products Co. Ltd.
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Tazaki Hiroyuki
Department Of Bioresource Chemistry Obihiro University Of Agriculture And Veterinary Medicine
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Ito Mayumi
Department Of Bioresource Science Obihiro University Of Agriculture And Veterinary Medicine
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Ito M
Department Of Bioresource Science Obihiro University Of Agriculture And Veterinary Medicine
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Fukushi Eri
Graduate School Of Agriculture Hokkaido University
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Miyoshi Masako
Department Of Bioresource Science Obihiro University Of Agriculture And Veterinary Medicine
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Nabeta K
Obihiro Univ. Agriculture And Veterinary Medicine Obihiro Jpn
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Tazaki H
Department Of Veterinary Science Nippon Veterinary And Life Science University
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Kawabata Jun
Laboratory Of Food Biochemistry Division Of Applied Bioscience Graduate School Of Agriculture Hokkai
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Fujita Takashi
Technology And Research Institute Snow Brand Milk Products Co. Ltd.
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TAZAKI Hiroyuki
Department of Agricultural Chemistry, Faculty of Agriculture, Hokkaido University
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