Studies on the Agalwood (Jinko). VIII. : Structures of Bi-phenylethylchromone Derivatives

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概要

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• Three new bi-2-(2-phenylethyl)chromones, tentatively named AH_<12>, AH_<13>and AH_<14>, were isolated from agalwood "Jinko" along with AH_<10>, AH_<11> and AH_<15>. The structures of AH_<12> and AH_<13> were elucidated as (5S, 6R, 7R, 8S)-2-(2-phenyletyl)-5,6,7-trihydroxy-5,6,7,8-tetrahydro-8-[2-(2-phenylethyl)-7-methoxychromonyl-6-oxy]chromone and its de-7-methoxylate, respectively. AH_<14> was concluded to be (5S, 6S, 7S, 8R)-2-(2-phenylethyl)-6,7,8-trihydroxy-5,6,7,8-tetrahydro-5-[2-(2-phenylethyl)chromonyl-6-oxy]chromone. Elucidation of 5,6' and 8,6'-ether bonding in bi-2-(2-phenylethyl)chromones was done by detailed analyses of the proton and carbon-13 nuclear magnetic resonance (^1H and ^<13>C-NMR) spectra, and measuring nuclear Overhauser effect (NOE) difference values.

• 公益社団法人日本薬学会の論文
• 1989-01-25

著者

• 藤原 靖弘

  京都薬大

• 藤原 靖弘

  Kyoto Pharmaceutical Univesity

• 川崎 敏男

  Faculty of Pharmaceutical Sciences of Kyushu University

• 小西 天二

  京都薬科大学

• 宮原 一元

  Faculty of Pharmaceutical Sciences, Setsunan University

• 川崎 敏男

  九大薬

• 清沢 脩

  Kyoto College of Pharmacy

• 川崎 敏男

  Faculty Of Pharmaceutical Sciences Setsunan University

• 川崎 敏男

  Faculty Of Pharmaceutical Sciences Kyushu University

• 川崎 敏夫

  Faculty Of Pharmaceutical Sciences Setsunan University

• 宮原 一元

  Faculty Of Pharmaceutical Sciences Setsunan University

• 小西 天二

  Kyoto Pharmaceutical University

• 岩越 淳

  Kyoto Pharmaceutical University

• 嶋田 康男

  Mitsuboshi Seiyaku Company

• 抱 隆史

  Kyoto Pharmaceutical University

• 清沢 修

  Kyoto Pharmaceutical University

• 岩越 淳

  京都薬科大学

• 嶋田 康男

  三星製薬株式会社

• 嶋田 康男

  三星製薬

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