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Analysis of terpene cyclization reactions based on computational chemistry, synthetic organic chemistry, and biochemistry

Research Project

Project/Area Number 22K14791
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 37020:Chemistry and chemical methodology of biomolecules-related
Research InstitutionUniversity of Yamanashi

Principal Investigator

Sato Hajime  山梨大学, 大学院総合研究部, 特任助教 (80782648)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsテルペン / 計算化学 / 天然物化学 / DFT
Outline of Research at the Start

本研究課題では, トリフルオロメチル基(CF3基)を有する人工基質を用いて, 環化反応の制御メカニズムについて精査し, (1)カルボカチオンの求電子性の向上, (2)二重結合の電子密度低下などにより引き起こされる環化反応への影響と, テルペン環化反応における Me 基の役割を明らかにすることを目的とする. 本研究課題は, テルペン環化反応機構を深く理解し「自然に学ぶものづくり」に応用するという工学的な意義とともに, カルボカチオンの反応性という基礎学理の追求という意義を併せ持つ研究課題である.

Outline of Final Research Achievements

In this study, the mechanism of terpene cyclase was analyzed using experimental and computational chemistry. Artificial substrates with trifluoromethyl groups were synthesized to elucidate the role of the Me group and the effect of increased electrophilicity of the carbocation and decreased electron density of the double bond on the cyclization reaction. The biosynthetic reaction mechanism of spiroalbatene and peniroquesine was also elucidated. This research has both an engineering significance of deep understanding of the mechanism of terpene cyclization and its application to “manufacturing by learning from nature” and a significance of pursuing the basic science of the reactivity of carbocation. As research results, one review article and three original papers have been published.

Academic Significance and Societal Importance of the Research Achievements

本研究は、テルペン環化反応における反応制御機構の解明を目的とし、CF3基を有する人工基質を用いて、カルボカチオンと低求核性二重結合の反応性、およびMe基の役割を明らかにすることを目指しています。この研究は、従来の実験科学的手法に加え、最新の計算化学を組み合わせた独自のアプローチを採用しており、学術的に新規性と独創性を有しています。本研究成果により、自在にテルペン化合物を生産する酵素設計や、低環境負荷型物質生産によるSDGsへの貢献の可能性を秘めています。さらに、CF3基を有する環化生成物は、新規医薬品リード化合物や新規機能性分子としての応用が期待されるため、社会的意義も大きいと考えられます。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 2 results) Presentation (5 results) (of which Invited: 2 results)

  • [Journal Article] Theoretical Study of Natural Product Biosynthesis Using Computational Chemistry.2024

    • Author(s)
      Hajime Sato
    • Journal Title

      Chem. Pharm. Bull.

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Revision of Peniroquesine Biosynthetic Pathway by Retro-biosynthetic Theoretical Analysis: Ring Strain Controls the Unique Carbocation Rearrangement Cascade2023

    • Author(s)
      Taro Matsuyama, Ko Togashi, Moe Nakano, Hajime Sato, Masanobu Uchiyama
    • Journal Title

      JACS Au

      Volume: 3 Issue: 6 Pages: 1596-1603

    • DOI

      10.1021/jacsau.3c00039

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Theoretical Study of the Rearrangement Reaction in Bisorbicillinoid Biosynthesis: Insights into the Molecular Mechanisms Involved2023

    • Author(s)
      Moe Nakano, Hajime Sato
    • Journal Title

      Org. Biomol. Chem.

      Volume: 21 Issue: 26 Pages: 5366-5371

    • DOI

      10.1039/d3ob00728f

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unraveling the Role of Prenyl Side-Chain Interactions in Stabilizing the Secondary Carbocation in the Biosynthesis of Variexenol B2023

    • Author(s)
      Moe Nakano, Rintaro Gemma, Hajime Sato
    • Journal Title

      Beilstein J. Org. Chem.

      Volume: 19 Pages: 1503-1510

    • DOI

      10.3762/bjoc.19.107

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mechanistic Investigation of the Degradation Pathways of α-β/α-α Bridged Epipolythiodioxopiperazines (ETPs)2023

    • Author(s)
      Daiki Kurita, Hajime Sato, Kazunori Miyamoto, Masanobu Uchiyama
    • Journal Title

      J. Org. Chem.

      Volume: 88 Issue: 17 Pages: 12797-12801

    • DOI

      10.1021/acs.joc.3c01061

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Concertedness and Activation Energy Control by Distal Methyl Group during Ring Contraction/Expansion in Scalarane‐Type Sesterterpenoid Biosynthesis2023

    • Author(s)
      Sato Hajime、Nakano Moe
    • Journal Title

      Chemistry ? A European Journal

      Volume: 29 Issue: 11

    • DOI

      10.1002/chem.202203076

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Elucidation of Late-Stage Biosynthesis of Phomoidride: Proposal of Cyclization Mechanism Affording Characteristic Nine-Membered Ring of Fungal Dimeric Anhydride2022

    • Author(s)
      Yamamoto Shintaro、Matsuyama Taro、Ozaki Taro、Takino Junya、Sato Hajime、Uchiyama Masanobu、Minami Atsushi、Oikawa Hideaki
    • Journal Title

      Journal of the American Chemical Society

      Volume: 144 Issue: 46 Pages: 20998-21004

    • DOI

      10.1021/jacs.2c09308

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] 逆生合成理論解析を用いた peniroquesine の生合成機構解明2024

    • Author(s)
      松山太郎, 中野萌恵, 佐藤玄, 内山真伸
    • Organizer
      日本薬学会第144年会(横浜)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 理論計算を基軸とした天然物の生合成機構研究2023

    • Author(s)
      佐藤玄
    • Organizer
      日本薬学会関東支部オンラインシンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] ジテルペン生合成における 2 級カルボカチオンの安定化における側鎖相互作用の役割の解明2023

    • Author(s)
      中野萌恵, 佐藤玄
    • Organizer
      第67回香料・テルペンおよび精油化学に関する討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 理論計算を基軸とした天然物の生合成研究2023

    • Author(s)
      佐藤玄
    • Organizer
      東京理科大学薬学部 招待講演
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Variexenol 生合成における反応経路の分岐と側鎖からの 2 級カルボカチオンの安定化2023

    • Author(s)
      中野萌恵, 佐藤玄
    • Organizer
      第13回CSJ化学フェスタ
    • Related Report
      2023 Annual Research Report

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Published: 2022-04-19   Modified: 2025-01-30  

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