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Development of peptide catalysts based on library screening and machine learning

Research Project

Project/Area Number 20K05487
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 33020:Synthetic organic chemistry-related
Research InstitutionThe University of Tokyo

Principal Investigator

Kudo Kazuaki  東京大学, 生産技術研究所, 教授 (80251669)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywordsペプチド触媒 / 面不斉化合物 / グアニジン触媒 / 不斉触媒反応 / 構造機能相関 / 機械学習 / 不斉触媒 / 定量的構造活性相関
Outline of Research at the Start

酵素は生体内で化学反応を高効率かつ高選択的に進める優れた触媒だが,生体内反応に特化しているため,そのまま薬など有用な化学品の合成に適用することはできない。酵素にせまる優れた人工触媒の開発のための一つのアプローチとして,酵素同様にアミノ酸からなるペプチドの利用が考えられ,我々は,これまでにペプチドが触媒として機能することを示してきた。しかし,未だに,どのアミノ酸を用いてどんな配列のペプチドを作ればよい触媒となるかについての指針はない。本研究は,これまでに開発したペプチド触媒を機械学習で解析することによって,ペプチド触媒の設計指針を打ち立てようとするものである。

Outline of Final Research Achievements

Regarding the proposal to find some kind of correlation between the amino acid sequence of the peptide catalyst and its catalytic reaction result, which was originally planned, it was not possible to draw a clear conclusion.
On the other hand, we could discover a new N-terminal guanidinylated strongly basic peptide asymmetric catalyst that non-covalently activates substrates, and used it to a Michael addition of β-dicarbonyl compounds to nitroolefins with high enantioselectivity. Furthermore, it was found that the kinetic resolution proceeded with high efficiency when planar chiral [2.2]paracyclophane with a 2-nitrovinyl group was used as the substrate.

Academic Significance and Societal Importance of the Research Achievements

グアニジンにキラルな置換基を結合させた強塩基性不斉触媒はこれまでに報告例があるものの,決まってグアニジンが2本以上の結合を介して不斉源とつながった形をしていた。今回我々が見出したペプチド触媒は,グアニジンが1本の結合のみで不斉源とつながった構造をもち,このことによってかさ高い基質の反応を触媒できることが示された。また,面不斉化合物の速度論的光学分割では,一般の低分子触媒ではほとんどキラリティーの認識ができないことが判明し,この点でもペプチド触媒という新しいタイプの有機触媒の有用性を示すことができた。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (16 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (9 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Book (1 results)

  • [Journal Article] Synthesis of 2-trifluoromethylated 3-pyrrolines/pyrrolidines via [3+2] cycloaddition of azomethine ylides with the participation of 3,3,3-trifluoroalanine2022

    • Author(s)
      Q. Liu, I. Yoshikawa, K. Kudo
    • Journal Title

      J. Fluorine Chem.

      Volume: 264 Pages: 110061-110061

    • DOI

      10.1016/j.jfluchem.2022.110061

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Iterative synthesis of nitrogen-containing polyketide <i>via</i> oxime intermediates2022

    • Author(s)
      Takeuchi Yuta、Kawasaki Shun、Akagawa Kengo、Kudo Kazuaki
    • Journal Title

      RSC Advances

      Volume: 12 Issue: 9 Pages: 5275-5279

    • DOI

      10.1039/d2ra00108j

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Solid-Phase Biomimetic Synthesis of Polyketide2021

    • Author(s)
      Takeuchi Yuta、Akagawa Kengo、Kudo Kazuaki
    • Journal Title

      The Journal of Organic Chemistry

      Volume: 86 Issue: 23 Pages: 17307-17317

    • DOI

      10.1021/acs.joc.1c02441

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Enantioselective Nitro‐Michael Addition Catalyzed by N‐Terminal Guanidinylated Helical Peptide2021

    • Author(s)
      Tamaribuchi Kenya、Tian Jiaqi、Akagawa Kengo、Kudo Kazuaki
    • Journal Title

      Advanced Synthesis &amp; Catalysis

      Volume: 364 Issue: 1 Pages: 82-86

    • DOI

      10.1002/adsc.202101152

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spontaneous substitution of azulene-derived benzylic alcohols by thiols and its application to labeling/protection of biothiols2021

    • Author(s)
      Jin Yu、Akagawa Kengo、Kudo Kazuaki
    • Journal Title

      Tetrahedron

      Volume: 84 Pages: 131998-131998

    • DOI

      10.1016/j.tet.2021.131998

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synthesis, characterization of calix[5]azulene and its complexation with pyridinium salts2021

    • Author(s)
      Jin Yu、Akagawa Kengo、Mutai Toshiki、Yoshikawa Isao、Kudo Kazuaki
    • Journal Title

      Tetrahedron

      Volume: - Pages: 132146-132146

    • DOI

      10.1016/j.tet.2021.132146

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] マロン酸ハーフチオエステルを用いたα,β-不飽和チオエステルの効率的合成法の開発2023

    • Author(s)
      川崎 駿、赤川 賢吾、工藤 一秋
    • Organizer
      日本化学会 第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] N-terminal guanidinylated peptide catalyzed asymmetric Nitro Michael addition and its application to kinetic resolution of a planar-chiral [2.2]paracyclophane2021

    • Author(s)
      J.Tian,K.Tamaribuchi,K.Akagawa,K.Kudo
    • Organizer
      第11回CSJ化学フェスタ2021
    • Related Report
      2021 Research-status Report
  • [Presentation] Development of regioselective ε-alkylation of α, β, γ, δ-unsaturated aldehydes catalyzed by peptides2021

    • Author(s)
      Q.Liu, K.Akagawa,K.Kudo
    • Organizer
      第11回CSJ化学フェスタ2021
    • Related Report
      2021 Research-status Report
  • [Presentation] Biomimetic Iterative Synthesis of Nitrogen-containing Polyketide via O-Alkyl Oximes Intermediates2021

    • Author(s)
      Y.Takeuchi,S.Kawasaki,K.Akagawa,K.Kudo
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] アズレン由来のベンジルアルコールのチオールによる自発的置換とバイオチオールのラベル化/保護への応用2021

    • Author(s)
      Jin Yu、赤川 賢吾、工藤 一秋
    • Organizer
      日本化学会 第101春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 生合成機構を模倣したポリケチドの収束的合成法の開発2021

    • Author(s)
      竹内 優太、赤川 賢吾、工藤 一秋
    • Organizer
      日本化学会 第101春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 生合成機構を模倣した含窒素ポリケチド合成法の開発2021

    • Author(s)
      川崎 駿、竹内 優太、赤川 賢吾、工藤 一秋
    • Organizer
      日本化学会 第101春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] ヘリックス構造をもつN 末端グアニジル化ペプチド触媒を用いた不斉マイケル付加反応2021

    • Author(s)
      溜渕 堅也、赤川 賢吾、工藤 一秋
    • Organizer
      日本化学会 第101春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 合成ペプチドは酵素の夢を見るか?―選択的ペプチド触媒の開発―2020

    • Author(s)
      工藤一秋
    • Organizer
      第10回CSJ化学フェスタ2020
    • Related Report
      2020 Research-status Report
    • Invited
  • [Book] Chapter 5 ASYMMETRIC PEPTIDE CATALYSIS in "Catalytic Asymmetric Synthesis, 4th ed."2022

    • Author(s)
      Kazuaki Kudo
    • Total Pages
      912
    • Publisher
      John Wiley & Sons, Inc.
    • ISBN
      9781119736394
    • Related Report
      2022 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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