Precise activation based on transition state control using neighboring effect and its medicinal application
Project/Area Number |
15KT0061
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Multi-year Fund |
Section | 特設分野 |
Research Field |
Transition State Control
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Research Institution | Kyoto University |
Principal Investigator |
Ohno Hiroaki 京都大学, 薬学研究科, 教授 (30322192)
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Research Collaborator |
UCHIYAMA Masanobu
FUJII Nobutaka
OISHI Shinya
|
Project Period (FY) |
2015-07-10 – 2019-03-31
|
Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2018: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
|
Keywords | 近接効果 / 多環式骨格 / 連続反応 / 金触媒 / アルカロイド / 骨格構築 / マクロ環化 / 創薬 |
Outline of Final Research Achievements |
Catalytic reactions using neighboring effect for efficient bond formation were developed. First, a reaction for direct construction of fused carbazoles by a gold-catalyzed cascade cyclization of conjugated diynes bearing an azide group was developed. This reaction was applied to total synthesis of dictyodendrins and their structure-activity relationship study. Next, efficient construction of the tetracyclic indoline scaffold of akuammiline alkaloids was developed, which was useful for formal total synthesis of strictamine. Gold-catalyzed cascade cyclization reactions of skipped diynes and 1,4-diyn-3-ones were also developed. These results clearly demonstrate that the neighboring effect in gold-catalyzed alkyne activation is extremely useful in syntheses of diverse heterocycles.
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Academic Significance and Societal Importance of the Research Achievements |
反応点同士の近接効果を利用した遷移状態制御は、通常困難な分子変換を可能にする上で有効なアプローチである。この領域の研究は、ビアリール結合の形成を含む平面的な分子の構築において近年爆発的な進展を見せている。一方で、三次元的な構造を有する骨格の構築においては、極めて限られた官能基化反応が知られているのみであった。本研究の学術的意義は、反応点の近接効果による遷移状態制御が、三次元骨格の構築と多連続環化反応において有効であることを示した点にある。複雑な構造を有する化合物群を創薬研究に用いる礎を築いた点において、本研究の社会的意義は大きいと考えている。
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Report
(5 results)
Research Products
(57 results)
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[Journal Article] Direct synthesis of aryl-annulated [c]carbazoles by gold(I)-catalysed cascade reaction of azide-diynes and arenes2018
Author(s)
Yuiki Kawada, Shunsuke Ohmura, Misaki Kobayashi, Wataru Nojo, Masaki Kondo, Yuka Matsuda, Junpei Matsuoka, Shinsuke Inuki, Shinya Oishi, Chao Wang, Tatsuo Saito, Masanobu Uchiyama, Takanori Suzuki, Hiroaki Ohno
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Journal Title
Chem. Sci.
Volume: 9
Issue: 44
Pages: 8416-8416
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Identification of Selective Inhibitors of Sphingosine Kinases 1 and 2 through a Structure-Activity Relationship Study of 4-epi-Jaspine B2017
Author(s)
H. Ohno, M. Honda, N. Hamada, J. Miyagaki, A. Iwata, K. Otsuki, T. Maruyama, S. Nakamura, I. Nakanishi, S. Inuki, N. Fujii, S. Oishi
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Journal Title
Bioorg. Med. Chem.
Volume: 25
Issue: 12
Pages: 3046-3052
DOI
Related Report
Peer Reviewed
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[Journal Article] Novel 3,4,7-Substituted Benzofuran Derivatives Having Binding Affinity to κ-Opioid Receptor2016
Author(s)
D. Nishiyama, Y. Sakai, H. Sekiguchi, H. Chiba, R. Misu, S. Oishi, N. Fujii, H. Ohno
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Journal Title
Chemical and Pharmaceutical Bulletin
Volume: 64
Issue: 7
Pages: 996-1003
DOI
NAID
ISSN
0009-2363, 1347-5223
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Structure-Activity Relationship Study of 4-(Thiazol-5-yl)benzoic Acid Derivatives as Potent Protein Kinase CK2 Inhibitors2016
Author(s)
H. Ohno, D. Minamiguchi, S. Nakamura, K. Shu, S. Okazaki, M. Honda, R. Misu, H. Moriwaki, S. Nakanishi, S. Oishi, T. Kinoshita, I. Nakanishi, N. Fujii
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Journal Title
Bioorg. Med. Chem.
Volume: 24
Issue: 5
Pages: 1136-1141
DOI
Related Report
Peer Reviewed
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