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Development of chemical reactions for realizing precise synthesis of low to high molecular weight bioactive compounds in aqueous solutions

Research Project

Project/Area Number 16K17902
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Synthetic chemistry
Research InstitutionInstitute of Physical and Chemical Research (2018-2019)
Kyushu University (2016-2017)

Principal Investigator

Watanabe Kenji  国立研究開発法人理化学研究所, 生命機能科学研究センター, 研究員 (90631937)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords水中反応 / チオール / タンパク質 / ペプチド / インドール / 生体共役反応 / インドリジン / ベンジリック位水酸基 / 水酸基活性化 / ベンジルアルコール / 有機合成化学 / 環境調和型反応 / 中分子化合物
Outline of Final Research Achievements

In this study, we developed chemical reactions and related transformations for precise chemical modification of biomolecules such as proteins, peptides, and amino acids. We reported alcohol compounds having an indole skeleton selectively form a stable C-S bond with a thiol group via dehydroxylation of the hydroxy group in a weakly acidic (pH 4.5-6.4) aqueous buffered solutions (Chem. Eur. J. 2018, 24, 3959-3964). We also investigated a related transformation involving thiol and boronic acid that proceeds in organic solvents. In the final year, we conducted a comparative study between the latest bioconjugation reactions and covalent bond formation reactions involving thiols, and published a review (J. Synth. Org. Chem. Jpn. 2019, 77, 841-842).

Academic Significance and Societal Importance of the Research Achievements

タンパク質などの生体由来の分子と生物活性を示す有機化合物を結びつける化学反応についての研究を行った。これまでに用いられてきた化学反応は、タンパク質のチオール基の空気酸化や反応性の高いアミノ基が関与する望まない副反応が起こり、問題となることがあったが、これらを克服した弱酸性条件で進行する新たな化学反応の開発を行った。これらの成果は、医薬品や生命機能を解明するための分子を合成するために役立つと考えられる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Covalent Bond Formation between Aromatic Nitro Compounds and Biomolecules2019

    • Author(s)
      渡辺 賢司
    • Journal Title

      Journal of Synthetic Organic Chemistry, Japan

      Volume: 77 Issue: 8 Pages: 841-842

    • DOI

      10.5059/yukigoseikyokaishi.77.841

    • NAID

      130007689047

    • ISSN
      0037-9980, 1883-6526
    • Year and Date
      2019-08-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bioconjugation with Thiols by Benzylic Substitution2018

    • Author(s)
      Kenji Watanabe and Takashi Oshima
    • Journal Title

      Chemistry―A European Journal

      Volume: 24 Issue: 16 Pages: 3959-3964

    • DOI

      10.1002/chem.201706149

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Boronic Acid Accelerated Three-Component Reaction for the Synthesis of α-Sulfanyl-Substituted Indole-3-acetic Acids2017

    • Author(s)
      Amrita Das, Kenji Watanabe, Hiroyuki Morimoto and Takashi Ohshima
    • Journal Title

      Organic Letters

      Volume: 19 Issue: 21 Pages: 5794-5797

    • DOI

      10.1021/acs.orglett.7b02727

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Development of On-Demand Bioconjugation/Deconjugation Platforms2019

    • Author(s)
      Kenji Watanabe, Takashi Niwa, Takamitsu Hosoya
    • Organizer
      27th International Society of Heterocyclic Chemistry Congress
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ベンジリック位チオ化による生体共役反応の開発2018

    • Author(s)
      渡辺 賢司
    • Organizer
      第13回六甲有機合成研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] ベンジル位チオール化反応を用いたpH応答性生体共役反応2017

    • Author(s)
      渡辺賢司、大嶋孝志
    • Organizer
      第35回メディシナルケミストリーシンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] ベンジル位チオール化反応を用いたpH応答性生体共役反応2017

    • Author(s)
      渡辺賢司、大嶋孝志
    • Organizer
      第43回反応と合成の進歩シンポジウム
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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