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Synthetic chemistry for the development of oligosaccharide-type sialidase inhibitors

Research Project

Project/Area Number 21H02070
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 37020:Chemistry and chemical methodology of biomolecules-related
Research InstitutionKyushu University

Principal Investigator

Hirai Go  九州大学, 薬学研究院, 教授 (50359551)

Co-Investigator(Kenkyū-buntansha) 上村 春樹  長崎大学, 熱帯医学研究所, 客員准教授 (60184975)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2022: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2021: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywordsシアル酸 / シアリダーゼ / 阻害剤 / 分子設計 / 触媒的合成 / 酸化的カップリング / グリコシル化
Outline of Research at the Start

生体内の糖鎖を切断する糖加水分解酵素は、生命活動に重要な働きをしているものが多く、数々の疾患に関与することが知られている。本研究は、その中でも糖鎖の末端にしばしば見られるシアル酸を切断するシアリダーゼに着目し、シアリダーゼの酵素活性を抑制できる阻害剤の開発に挑むものである。本研究の目的は、「遷移状態」+「基質」のハイブリッドアナログという新しい分子設計コンセプトによって、既存の阻害剤が効果的でないシアリダーゼに対する阻害剤を開発することである。

Outline of Final Research Achievements

This study focused on sialidase, an enzyme that cleaves sialic acids from the non-reducing ends of glycans, aiming to develop inhibitors that can suppress sialidase activity. We introduced a novel molecular design concept combining a 'transition state' and 'substrate' analog to create inhibitors for sialidases where existing inhibitors are ineffective. During this research period, we established a synthetic methodology for new inhibitors and successfully synthesized various derivatives. Additionally, we identified an inhibitor effective against enzyme A, which previously lacked effective inhibitors.

Academic Significance and Societal Importance of the Research Achievements

シアリダーゼは、インフルエンザ治療薬の標的酵素として長年研究対象となっており、いくつかの阻害剤が臨床応用されている。今後の変異インフルエンザの出現を考慮すると、これまでとは異なる化学構造を有する阻害剤開発は急務である。本研究では、これら重要なシアリダーゼに加え、ある疾患に関与する酵素Aに対する阻害剤開発を実現しており、社会的意義は高い。さらに独自の分子設計概念を起点とし、さらに高度な有機化学を駆使した化合物合成も実現しており、学術的にも重要な研究である。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • Research Products

    (24 results)

All 2024 2023 2022 2021 Other

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (15 results) (of which Int'l Joint Research: 4 results,  Invited: 7 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Linkage-Editing Pseudo-Glycans: A Reductive α-Fluorovinyl-<i>C</i>-Glycosylation Strategy to Create Glycan Analogs with Altered Biological Activities2024

    • Author(s)
      Moriyama Takahiro et. al.
    • Journal Title

      Journal of the American Chemical Society

      Volume: 146 Issue: 3 Pages: 2237-2247

    • DOI

      10.1021/jacs.3c12581

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pseudo-Glycoconjugates: Synthesis and Biological Function of <i>C</i>-Glycoside Analogues of Glycoconjugates2023

    • Author(s)
      Hirai Go
    • Journal Title

      Journal of Synthetic Organic Chemistry, Japan

      Volume: 81 Issue: 7 Pages: 692-705

    • DOI

      10.5059/yukigoseikyokaishi.81.692

    • ISSN
      0037-9980, 1883-6526
    • Year and Date
      2023-07-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoredox-catalyzed protecting-group-free <i>C</i>-glycosylation with glycosyl sulfinate <i>via</i> the Giese reaction2023

    • Author(s)
      Miura Taishi、Yoritate Makoto、Hirai Go
    • Journal Title

      Chemical Communications

      Volume: 59 Issue: 55 Pages: 8564-8567

    • DOI

      10.1039/d3cc02361c

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Harringtonine Ester Derivatives with Enhanced Antiproliferative Activities against HL-60 and HeLa Cells2022

    • Author(s)
      Ochi Akihiro、Yoritate Makoto、Miyamoto Tomofumi、Usui Kazuteru、Yusakul Gorawit、Putalun Waraporn、Tanaka Hiroyuki、Hirai Go、Morimoto Satoshi、Sakamoto Seiichi
    • Journal Title

      Journal of Natural Products

      Volume: 85 Issue: 2 Pages: 345-351

    • DOI

      10.1021/acs.jnatprod.1c00888

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Alkynyl Group on Reactivity in Photoaffinity Labeling with 2‐Thienyl‐Substituted α‐Ketoamide2022

    • Author(s)
      Moriyama Takahiro、Mizukami Daiki、Yoritate Makoto、Usui Kazuteru、Takahashi Daisuke、Ota Eisuke、Sodeoka Mikiko、Ueda Tadashi、Karasawa Satoru、Hirai Go
    • Journal Title

      Chemistry A European Journal

      Volume: 28 Issue: 11 Pages: 1-5

    • DOI

      10.1002/chem.202103925

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preparation of Oxysterols by C?H Oxidation of Dibromocholestane with Ru(Bpga) Catalyst2021

    • Author(s)
      Fujii Yui、Yoritate Makoto、Makino Kana、Igawa Kazunobu、Takeda Daiki、Doiuchi Daiki、Tomooka Katsuhiko、Uchida Tatsuya、Hirai Go
    • Journal Title

      Molecules

      Volume: 27 Issue: 1 Pages: 225-225

    • DOI

      10.3390/molecules27010225

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Design, synthesis, and functional evaluation of triazine-based bivalent agents that simultaneously target the active site and hot spot of phosphatase Cdc25B2021

    • Author(s)
      Nagaoka Yosei、Parvatkar Prakash、Hirai Go、Ohkanda Junko
    • Journal Title

      Bioorganic &amp; Medicinal Chemistry Letters

      Volume: 48 Pages: 128265-128265

    • DOI

      10.1016/j.bmcl.2021.128265

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Linkage-Editing pseudo-Glycans:効率的合成と機能2024

    • Author(s)
      平井剛
    • Organizer
      大阪大学大学院理学研究科講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Linkage-Editing Strategy for Creation of pseudo-Glycans2023

    • Author(s)
      Go Hirai
    • Organizer
      ISBOC-13, the IUPAC’s International Symposium on Bioorganic Chemistry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Efficient synthetic methodology for pseudo-glycans with C-glycoside linkage and their biological potentials2023

    • Author(s)
      Go Hirai
    • Organizer
      Eurocarbo21
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 擬複合糖質開発の醍醐味2023

    • Author(s)
      平井剛
    • Organizer
      「細胞を創る」研究会 16.0
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 複合糖質の機能改変:フッ素原子のポテンシャルを検証する2023

    • Author(s)
      平井剛
    • Organizer
      2023年度有機合成化学講習会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] (素人だからこそできる)有機合成を駆使した複合糖質研究2023

    • Author(s)
      平井剛
    • Organizer
      岡山大学大学院講義:先端分子デザイン概論3講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 2位にジフルオロメチレン基を有するグルコース誘導体の合成研究2022

    • Author(s)
      古城真夏、寄立麻琴、平井剛
    • Organizer
      日本化学会第102春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 代謝耐性型複合糖質のポテンシャル:アジュバントへの展開は可能か?2022

    • Author(s)
      平井剛
    • Organizer
      第15回次世代アジュバント研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 2-エキソメチレン型グルコシドの立体選択的合成と活性評価2022

    • Author(s)
      伊ヶ崎孝洋、木室佑亮、寄立麻琴、平井剛
    • Organizer
      日本薬学会第142回年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 2-エキソメチレン型β-グルコシドの立体選択的合成法の開発2021

    • Author(s)
      古城真夏、寄立麻琴、平井剛
    • Organizer
      創薬懇話会2021 in 京都
    • Related Report
      2021 Annual Research Report
  • [Presentation] 2-エキソメチレン型β-グルコシドの立体選択的合成法の開発2021

    • Author(s)
      古城真夏、寄立麻琴、平井剛
    • Organizer
      第58回化学関連支部合同九州大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 立体選択的な2’-エキソメチレン型グルコシドの合成法開発2021

    • Author(s)
      伊ヶ崎孝洋、寄立麻琴、平井剛
    • Organizer
      第58回化学関連支部合同九州大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 糖ヌクレオチドを模倣した糖転移酵素に対するABPの開発2021

    • Author(s)
      山口昂太、木室佑亮、寄立麻琴、平井剛
    • Organizer
      第33回若手研究者のためのセミナー
    • Related Report
      2021 Annual Research Report
  • [Presentation] Substrate-type Sialidase Inhibitors Involving Unique Mechanism-based Inhibition Machinery2021

    • Author(s)
      Go Hirai, Ryo Fukazawa, Keiya Uezono, Kenta Mizui, Makoto Yoritate, Mikiko Sodeoka
    • Organizer
      Pacifichem 2021: Recent advances in carbohydrate chemistry and chemical glycobiology (#111)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Efficient Synthetic Strategy for C-linked α-Galactosylceramide Analogues2021

    • Author(s)
      Go Hirai
    • Organizer
      7th International Symposium on Middle Molecular Strategy (ISMMS-7)/ 16th Meeting of the International Endotoxin and Innate Immunit Society (IEIIS-16)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] ドラマチック有機合成化学 感動の瞬間1002023

    • Author(s)
      平井剛 ほか
    • Total Pages
      224
    • Publisher
      化学同人
    • ISBN
      9784759823363
    • Related Report
      2023 Annual Research Report
  • [Remarks] ”見た目はそっくり、中身は違う”(C-グリコシド型)擬複合糖質を開発

    • URL

      https://www.kyushu-u.ac.jp/ja/researches/view/1027/

    • Related Report
      2023 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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