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Synthetic studies on anti-infective natural products with unique structures for developing new categories of medicinal drugs

Research Project

Project/Area Number 17H03810
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Bioorganic chemistry
Research InstitutionTohoku University

Principal Investigator

Kuwahara Shigefumi  東北大学, 農学研究科, 教授 (30170145)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2019: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2018: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2017: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Keywordsamycolamicin / actinoallolide A / nonthmicin / 抗菌薬 / 抗原虫薬 / 全合成 / nonthmicin B
Outline of Final Research Achievements

Total synthetic studies on amycolamicin and nonthmicin, natural products with potent and broad-spectrum antibacterial activity against various drug-resistant bacteria, as well as actinoallolide A, a natural product with potent anti-trypanosomal activity, were conducted for the purpose of developing new categories of anti-infective drugs. The A, C, D, and E units of amycolamicin have been synthesized and the assembly of the C, D, and E units has been successfully achieved. The final stage of the total synthesis is now under progress. The 12-membered macrolactone part and the side chain moiety of actionallolide A have also been synthesized and the completion of the total synthesis by Suzuki-Miyaura coupling of the two parts is now underway.

Academic Significance and Societal Importance of the Research Achievements

amycolamicinのDユニット合成において,新規なビニルリチウム試薬を開発し,ケトンへの高立体選択的付加を実現した。また,デカリン構造を有するCユニットの分子Diels-Alder反応では,保護基の有無がジアステレオ選択性及び収率に大きく影響すること,actinoallolide AのTHF環内包型12員環マコロリド構造の構築にアシルケテン法が有効であることを見出した。各種類縁体の合成に応用可能な全合成の完成まであとわずかであり,構造活性相関を通した新規医薬の開発に貢献できると考える。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (7 results)

All 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (6 results)

  • [Journal Article] Synthesis of the N‐Acyl Amycolose Moiety of Amycolamicin and Its Methyl Glycosides2019

    • Author(s)
      Yasuhiro Meguro, Yusuke Ogura, Masaru Enomoto, Shigefumi Kuwahara
    • Journal Title

      The Journal of Organic Chemistry

      Volume: 84 Issue: 11 Pages: 6110-6116

    • DOI

      10.1021/acs.joc.9b00650

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Amycolamicinの全合成研究2020

    • Author(s)
      目黒康洋,桑原重文
    • Organizer
      日本農芸化学会2020年度大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 抗菌活性を有するアミコラマイシンのN-アシルアミコロース部位の合成2019

    • Author(s)
      目黒康洋,小倉由資,榎本賢,桑原重文
    • Organizer
      第30回記念万有仙台シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] Synthesis of the N-Acyl amycolose moiety of amycolamicin and its methyl glycosides2019

    • Author(s)
      Yasuhiro Meguro, Shigefumi Kuwahara
    • Organizer
      258th ACS National Meeting & Exposition
    • Related Report
      2019 Annual Research Report
  • [Presentation] Amycolamicinの全合成研究2019

    • Author(s)
      目黒康洋,小倉由資,榎本賢,桑原重文
    • Organizer
      第116回有機合成シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] AmycolamicinのDEユニットの合成2019

    • Author(s)
      目黒康洋,小倉由資,桑原重文
    • Organizer
      日本農芸化学会2019年度大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 抗トリパノソーマ活性を有するactinoallolide Aの合成研究2018

    • Author(s)
      十和田諒,桑原重文
    • Organizer
      日本農芸化学会2018年度大会
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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