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1
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Total synthesis of the reported structure of bioactive dibenzofuran natural product karnatakafuran B. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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Nishiyama T, Hamada E, Ishii D, Kihara Y, Choshi N, Nakanishi N, Murakami M, Taninaka K, Hatae N, Choshi T. Total synthesis of pyrrolo[2,3- c]quinoline alkaloid: trigonoine B. Beilstein J Org Chem 2021; 17:730-736. [PMID: 33796160 PMCID: PMC7991618 DOI: 10.3762/bjoc.17.62] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/05/2021] [Indexed: 11/23/2022] Open
Abstract
The first total synthesis of the pyrrolo[2,3-c]quinoline alkaloid trigonoine B (1) was accomplished via a six-step sequence involving the construction of an N-substituted 4-aminopyrrolo[2,3-c]quinoline framework via electrocyclization of 2-(pyrrol-3-yl)benzene containing a carbodiimide moiety as a 2-azahexatriene system. The employed six-step sequence afforded trigonoine B (1) in 9.2% overall yield. The described route could be employed for the preparation of various N-substituted 4-aminopyrroloquinolines with various biological activities.
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Affiliation(s)
- Takashi Nishiyama
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Fukuyama, Hiroshima 729-0292, Japan
| | - Erina Hamada
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Fukuyama, Hiroshima 729-0292, Japan
| | - Daishi Ishii
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Fukuyama, Hiroshima 729-0292, Japan
| | - Yuuto Kihara
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Fukuyama, Hiroshima 729-0292, Japan
| | - Nanase Choshi
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Fukuyama, Hiroshima 729-0292, Japan
| | - Natsumi Nakanishi
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Fukuyama, Hiroshima 729-0292, Japan
| | - Mari Murakami
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Fukuyama, Hiroshima 729-0292, Japan
| | - Kimiko Taninaka
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Fukuyama, Hiroshima 729-0292, Japan
| | - Noriyuki Hatae
- Faculty of Pharmaceutical Sciences, Yokohama University of Pharmacy, 601 Matano, Totsuka-ku, Yokohama 245-0066, Japan
| | - Tominari Choshi
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Fukuyama, Hiroshima 729-0292, Japan
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Choshi T, Nishiyama T, Murakami M, Taninaka K, Hamada E, Kinou D, Hatae N, Endo M. Synthesis of Pyrrolo[2,3-c]quinoline Alkaloid Marinoquinolines. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Roniboss A, Chanda K, Motilal Balamurali M. Investigation on Photophysical, Solvatochromism and Biological Significance of Substituted 2
H
‐Indazole Derivatives. ChemistrySelect 2020. [DOI: 10.1002/slct.202001477] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Anthonisamy Roniboss
- Chemistry Division, School of Advanced Sciences Vellore Institute of Technology, Chennai Campus Chennai 600127, Tamilnadu India
| | - Kaushik Chanda
- Department of Chemistry School of Advanced Sciences, Vellore Institute of Technology Vellore 632014, Tamilnadu India
| | - Musuvathi Motilal Balamurali
- Chemistry Division, School of Advanced Sciences Vellore Institute of Technology, Chennai Campus Chennai 600127, Tamilnadu India
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Nishiyama T, Takaiwa S, Kotouge R, Tani S, Yoshinaga R, Hamada E, Endo M, Sugino Y, Hatae N, Hibino S, Choshi T. First asymmetric enantioselective total synthesis of phenanthridine alkaloid, (S)-(+)-asiaticumine and its enantiomer. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Vargas DF, Larghi EL, Kaufman TS. The 6π-azaelectrocyclization of azatrienes. Synthetic applications in natural products, bioactive heterocycles, and related fields. Nat Prod Rep 2019; 36:354-401. [PMID: 30090891 DOI: 10.1039/c8np00014j] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Covering: 2006 to 2018 The application of the 6π-azaelectrocyclization of azatrienes as a key strategy for the synthesis of natural products, their analogs and related bioactive or biomedically-relevant compounds (from 2006 to date) is comprehensively reviewed. Details about reaction optimization studies, relevant reaction mechanisms and conditions are also discussed.
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Affiliation(s)
- Didier F Vargas
- Instituto de Química Rosario (IQUIR, CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas - Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina.
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Synthesis of Polysubstituted 3-Methylisoquinolines through the 6π-Electron Cyclization/Elimination of 1-Azatrienes derived from 1,1-Dimethylhydrazine. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Affiliation(s)
- Hitoshi Abe
- Graduate School of Science and Engineering, University of Toyama
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