• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Elucidation of an action mechanism of BNTX derivatives toward antitrichomonal activity and the structure activity relationship

Research Project

Project/Area Number 17K13259
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Biomolecular chemistry
Research InstitutionUniversity of Tsukuba

Principal Investigator

KUTSUMURA Noriki  筑波大学, 国際統合睡眠医科学研究機構, 准教授 (00439241)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords抗トリコモナス活性 / 構造活性相関 / オピオイド / 原虫感染症治療薬 / BNTX / チオール捕捉能 / Favorskii型転位 / 4,5-エポキシモルヒナン / モルヒナン / ノルモルヒナン / Favorskii転位反応 / 鎮痛 / モルヒナン骨格 / トリコモナス症治療薬 / 有機化学 / 合成化学 / 感染症 / 生理活性 / 薬学
Outline of Final Research Achievements

This study was conducted with the aim of clarifying the action mechanism of antitrichomonal activity of 7-benzylidenenaltrexone (BNTX) derivatives, which are known as delta-opioid receptor antagonists. A variety of BNTX derivatives were synthesized, and then, their antitrichomonal activity and opioid receptor binding affinity were evaluated. As a result, it was found that there was not much correlation between the antitrichomonal activity and the affinity of the opioid receptor. On the other hand, it was confirmed that the conjugated double bond in BNTX derivatives was an important factor for the expression of antitrichomonal activity as well as antimalarial activity. In addition, a novel Favorskii-type rearrangement reaction of the 4,5-epoxymorphinan compounds was discovered in the process of synthesis of BNTX derivatives.

Academic Significance and Societal Importance of the Research Achievements

トリコモナス症は、T. vaginalisという原虫によって引き起こされる性感染症の一つで、毎年世界で1億人以上の新規感染者が報告されている。我が国ではメトロニダゾールが第一選択薬として用いられているが、近年は耐性株も報告されており、新規作用機序の治療薬の開発が望まれている。本研究で見出したBNTX誘導体は中程度の抗トリコモナス活性を有しており、トリコモナスの抗酸化系を阻害するという新しい活性発現メカニズムが提案された。実際、メトロニダゾールはT. vaginalisにもリスザルのT. mobilensisにも殺活性を示したが、BNTX誘導体はT. vaginalisにのみ殺活性を示した。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2018 2017

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results) Presentation (6 results) (of which Invited: 1 results)

  • [Journal Article] Unique Reactions of Morphinan Skeletons and Conversions of the Skeletons to Active Alkaloids2018

    • Author(s)
      沓村憲樹、長瀬 博
    • Journal Title

      Journal of Synthetic Organic Chemistry, Japan

      Volume: 76 Issue: 9 Pages: 914-921

    • DOI

      10.5059/yukigoseikyokaishi.76.914

    • NAID

      130007472397

    • ISSN
      0037-9980, 1883-6526
    • Year and Date
      2018-09-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Favorskii-Type Rearrangement of the 4,5-Epoxymorphinan Skeleton2018

    • Author(s)
      Kutsumura Noriki、Koyama Yasuaki、Suzuki Yuko、Tominaga Ken-ichi、Yamamoto Naoshi、Saitoh Tsuyoshi、Nagumo Yasuyuki、Nagase Hiroshi
    • Journal Title

      Organic Letters

      Volume: 20 Issue: 6 Pages: 1559-1562

    • DOI

      10.1021/acs.orglett.8b00288

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Antitrichomonal activity of δ opioid receptor antagonists, 7-benzylidenenaltrexone derivatives2017

    • Author(s)
      Kutsumura Noriki、Koyama Yasuaki、Nagumo Yasuyuki、Nakajima Ryo、Miyata Yoshiyuki、Yamamoto Naoshi、Saitoh Tsuyoshi、Yoshida Naoko、Iwata Satoshi、Nagase Hiroshi
    • Journal Title

      Bioorganic & Medicinal Chemistry

      Volume: 25 Issue: 16 Pages: 4375-4383

    • DOI

      10.1016/j.bmc.2017.06.026

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 4,5-エポキシモルヒナンにおけるFavorskii型転位反応の研究2018

    • Author(s)
      小山恭章、沓村憲樹、鈴木優子、富永健一、山本直司、斉藤 毅、南雲康行、長瀬 博
    • Organizer
      第48回複素環化学討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 14-アミノナルトレキソン誘導体の異常転位反応2018

    • Author(s)
      大類 彩、前田健太、南雲康行、山本直司、斉藤 毅、沓村憲樹、長瀬 博
    • Organizer
      第48回複素環化学討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 14-アミノナルトレキソン誘導体の異常転位反応2018

    • Author(s)
      前田健汰、大類 彩、南雲康行、山本直司、斉藤 毅、沓村憲樹、長瀬 博
    • Organizer
      第44回反応と合成の進歩シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 大学における創薬化学を考える2018

    • Author(s)
      沓村憲樹
    • Organizer
      東京理科大学 卒業研究C特別講義
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] BNTX誘導体合成における新奇転位反応の発券とその反応機構の解明2017

    • Author(s)
      鈴木優子、沓村憲樹、小山恭章、南雲康行、斉藤毅、長瀬博
    • Organizer
      第61回日本薬学会関東支部大会
    • Related Report
      2017 Research-status Report
  • [Presentation] クロロキン耐性マラリアに対する耐性克服剤としてのBNTX2017

    • Author(s)
      宮田善之、吉田菜穂子、長瀬博、藤井秀明、沓村憲樹、永富良一、仲村健二郎、馬島敏郎
    • Organizer
      第72回日本体力医学会大会
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi