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The application of efficient discrete optimization algorithms to the development of a computer automated method for the elucidation of chemical structures

Research Project

Project/Area Number 15K15944
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Mathematical informatics
Research InstitutionNanzan University

Principal Investigator

KOICHI Shungo  南山大学, 理工学部, 准教授 (50513602)

Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords離散最適化 / 化合物構造推定 / データベース / 核磁気共鳴分析法 / グラフアルゴリズム / 分子構造推定
Outline of Final Research Achievements

The aim of this project is to establish a computer automated method for the elucidation of chemical structures using an NMR spectrum-structure database. For this purpose, we used several efficient discrete optimization algorithms to solve some combinatorial problems arising in the development of the method. We first applied an algorithm for the graph inference problem to handle and elucidate highly symmetric structures, which successfully extended the applicability of the method. Next, we addressed a problem in generating orders of retrieved substructures. The generation has to be exhaustive because, for each of the orders, the substructures are merged in the order to form a whole structure, which may depend on the order. This generation problem was resolved with the help of an algorithm for maximum weight spanning tree problem.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report

Research Products

(9 results)

All 2017 2016 2015

All Journal Article Presentation

  • [Journal Article] Why do the Togni reagent and some of its derivatives exist in the high-energy hypervalent iodine form? New insight into the origins of their kinetic stability2017

    • Author(s)
      Koichi Shungo, Leuthold Benjamin, Luethi Hans P.
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 19 Pages: 32179-32183

    • DOI

      10.1039/c7cp05943d

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Handling of Highly Symmetric Molecules for Chemical Structure Elucidation in a CAST/CNMR System2016

    • Author(s)
      Shungo Koichi, Hiroyuki Koshino, Hiroko Satoh
    • Journal Title

      J. Comput. Chem. Jpn.

      Volume: 14 Issue: 6 Pages: 193-195

    • DOI

      10.2477/jccj.2015-0067

    • NAID

      130005122723

    • ISSN
      1347-1767, 1347-3824
    • Year and Date
      2016-03-09
    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] CAST/CNMRシステムを用いたClerodane型ジテルペンの13C NMRの帰属と構造の評価2017

    • Author(s)
      越野広雪,栗澤尚暎,木村賢一,小市俊悟,佐藤寛子
    • Organizer
      第56回NMR討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] CAST/CNMRシステムを用いたプレニル化されたフェノール類の構造訂正2017

    • Author(s)
      越野広雪,小市俊悟,佐藤寛子
    • Organizer
      第61回香料・テルペンおよび精油化学に関する討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Development of a data-centric stability test for iodanes by using the support vector machine2017

    • Author(s)
      Shungo Koichi, Hans Peter Luethi
    • Organizer
      Competence Center for Computational Chemistry (C4) Workshop
    • Place of Presentation
      Zurich
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] CAST/CNMRシステムを用いた13C NMRシフト値による様々な有機化合物の構造訂正2016

    • Author(s)
      越野広雪,小市俊悟,佐藤寛子
    • Organizer
      第55回NMR討論会
    • Place of Presentation
      広島国際会議場
    • Year and Date
      2016-11-16
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] CAST/CNMRシステムを用いたcis-デカリン骨格を有するテルペノイドの立体化学の評価2016

    • Author(s)
      越野広雪,小市俊悟,佐藤寛子
    • Organizer
      第60回香料・テルペンおよび精油化学に関する討論会
    • Place of Presentation
      東京農業大学オホーツクキャンパス
    • Year and Date
      2016-10-29
    • Related Report
      2016 Research-status Report
  • [Presentation] Structural Revision of Pyrone-related Natural Products by Using CAST/CNMR System2016

    • Author(s)
      Hiroyuki Koshino, Shungo Koichi, Hiroko Satoh
    • Organizer
      EUROMAR 2016
    • Place of Presentation
      Aarhus
    • Year and Date
      2016-07-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] NMR分子構造解析システムCAST/CNMRにおける対称性が高い構造の自動構造推定について2015

    • Author(s)
      小市俊悟, 越野広雪, 佐藤寛子
    • Organizer
      日本コンピュータ化学会2015秋季年会
    • Place of Presentation
      函館市地域交流まちづくりセンター(北海道函館市)
    • Year and Date
      2015-10-30
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2019-03-29  

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