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Choi D, Takahashi N, Maruoka H, Harada S, Nastke A, Gröger H, Nemoto T. Synthetic Study of Dragmacidin E: Enantioselective Construction of the Seven-Membered Ring-Fused Indole Skeleton with Contiguous Stereocenters. J Org Chem 2023. [PMID: 36701491 DOI: 10.1021/acs.joc.2c02216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We developed an enantioselective synthetic method of constructing a seven-membered ring-fused indole skeleton with contiguous stereocenters for the synthesis of dragmacidin E. Introduction of chirality at the benzylic position was achieved by Ir-catalyzed asymmetric hydrogenation. After construction of the tricyclic molecular framework using Pd-catalyzed cascade cyclization, the tetrasubstituted carbon center was created using the Ag nitrene-mediated C-H amination reaction. The developed method provided access to the functionalized seven-membered ring-fused indole skeleton with a hydroxymethyl branch in the tetrasubstituted carbon.
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Affiliation(s)
- Dongil Choi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Noa Takahashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Haruka Maruoka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Alina Nastke
- Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Harald Gröger
- Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
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2
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Affiliation(s)
- Lauren G. O'Neil
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - John F. Bower
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
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3
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O'Neil LG, Bower JF. Electrophilic Aminating Agents in Total Synthesis. Angew Chem Int Ed Engl 2021; 60:25640-25666. [PMID: 33942955 PMCID: PMC9291613 DOI: 10.1002/anie.202102864] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Indexed: 12/12/2022]
Abstract
Classical amination methods involve the reaction of a nitrogen nucleophile with an electrophilic carbon center; however, in recent years, umpoled strategies have gained traction where the nitrogen source acts as an electrophile. A wide range of electrophilic aminating agents are now available, and these underpin a range of powerful C−N bond‐forming processes. In this Review, we highlight the strategic use of electrophilic aminating agents in total synthesis.
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Affiliation(s)
- Lauren G O'Neil
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.,Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
| | - John F Bower
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
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4
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Duan S, Xue B, Meng H, Ye Z, Xu Z, Li C. Rhodium(
II
)‐Catalyzed [4+3] Cyclization of Triazoles with Indole Derivatives and Its Application in the Total Synthesis of (±)‐Aurantioclavine. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000657] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shengguo Duan
- Department of Chemistry, Zhejiang Sci‐Tech University, Hangzhou Zhejiang 310018 China
| | - Bing Xue
- Department of Chemistry, Zhejiang Sci‐Tech University, Hangzhou Zhejiang 310018 China
| | - Hui Meng
- Department of Chemistry, Zhejiang Sci‐Tech University, Hangzhou Zhejiang 310018 China
| | - Zihang Ye
- Department of Chemistry, Zhejiang Sci‐Tech University, Hangzhou Zhejiang 310018 China
| | - Ze‐Feng Xu
- Department of Chemistry, Zhejiang Sci‐Tech University, Hangzhou Zhejiang 310018 China
| | - Chuan‐Ying Li
- Department of Chemistry, Zhejiang Sci‐Tech University, Hangzhou Zhejiang 310018 China
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5
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Paul D, Das S, Saha S, Sharma H, Goswami RK. Intramolecular Heck Reaction in Total Synthesis of Natural Products: An Update. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100071] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Debobrata Paul
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
| | - Subhendu Das
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
| | - Sanu Saha
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
| | - Himangshu Sharma
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
| | - Rajib Kumar Goswami
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
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6
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Savic VM, Jovanovic MD, Petkovic MR. Polycyclic Compounds from Allenes via Palladium-Mediated Intramolecular Carbopalladation/Nucleophilic Substitution Cascade Processes. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1705994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractIn recent decades transition metals have made a substantial contribution to the development of novel synthetic processes, with palladium catalysis being, arguably, at the forefront of this research. The efficiency of Pd-promoted C–C or C–X bond formation along with a variety of other transformations renders this metal an indispensable tool in synthetic organic chemistry. Of particular interest are Pd-catalysed multicomponent cascade reactions as they often allow the creation of complex structures from relatively simple starting materials, mimicking in this sense biochemical processes. Allenes as partners in Pd-promoted cascades involving carbopalladation/nucleophilic substitutions have been extensively studied in recent years. Many tactical variants have been explored showing a high level of efficiency and chemoselectivity with predictable outcomes. This short review is focused on intramolecular processes of this type because they provide access to relatively complex polycyclic products, possessing structural features often found in natural products and related compounds. Various approaches are discussed with the intention to demonstrate their applicability and synthetic potential.1 Introduction2 Intramolecular Palladium-Promoted Cascades of Allenes3 Class I Cyclisations4 Class II Cyclisations5 Class III Cyclisations6 Class IV Cyclisations7 Conclusion
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7
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Holman KR, Stanko AM, Reisman SE. Palladium-catalyzed cascade cyclizations involving C–C and C–X bond formation: strategic applications in natural product synthesis. Chem Soc Rev 2021; 50:7891-7908. [DOI: 10.1039/d0cs01385d] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This tutorial review highlights the use of palladium-catalyzed cascade cyclizations in natural product synthesis, focusing on cascades that construct multiple rings and form both C–C and C–X (X = O, N) bonds in a single synthetic operation.
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Affiliation(s)
- K. R. Holman
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering
- California Institute of Technology
- Pasadena
- USA
| | - A. M. Stanko
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering
- California Institute of Technology
- Pasadena
- USA
| | - S. E. Reisman
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering
- California Institute of Technology
- Pasadena
- USA
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8
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He Y, Song L, Liu C, Wu D, Li Z, Van Meervelt L, Van der Eycken EV. Access to Polycyclic Azepino[5,4,3- cd]indoles via a Gold-Catalyzed Post-Ugi Dearomatization Cascade. J Org Chem 2020; 85:15092-15103. [PMID: 33200934 DOI: 10.1021/acs.joc.0c01972] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The development of a rapid and diverse access to complex natural product-like 3,4-fused indole scaffolds has always attracted considerable attention from synthetic and medicinal communities. We herein disclose a modular and straightforward protocol to prepare the densely substituted polycyclic azepino[5,4,3-cd]indole scaffolds. This synthetic process involves an Ugi four-component reaction from easily available starting materials and a gold-catalyzed post-Ugi domino dearomatization/Michael addition sequence, enabling facile access to the highly functionalized azepino[5,4,3-cd]indole core with excellent chemo-, regio-, and diastereoselectivity.
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Affiliation(s)
- Yi He
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Liangliang Song
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Chao Liu
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Danjun Wu
- College of Pharmaceutical Science, Zhejiang University of Technology, 18 Chaowang Road, 310014 Hangzhou, China
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Luc Van Meervelt
- Biomolecular Architecture, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Erik V Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.,Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
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9
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Vchislo NV, Verochkina EA. Recent Advances in Total Synthesis of Alkaloids from α,β‐Unsaturated Aldehydes. ChemistrySelect 2020. [DOI: 10.1002/slct.202002872] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Nadezhda V. Vchislo
- A. E. Favorsky Irkutsk Institute of ChemistrySiberian Branch of the Russian Academy of Sciences Favorsky Str., 1 Irkutsk 664033 Russia
| | - Ekaterina A. Verochkina
- A. E. Favorsky Irkutsk Institute of ChemistrySiberian Branch of the Russian Academy of Sciences Favorsky Str., 1 Irkutsk 664033 Russia
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10
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Nakajima M, Kondo Y, Nakano SI, Adachi Y, Choi D, Franzén R, Nemoto T. Radical cascade cyclization for synthesizing 3,4-fused tricyclic benzofuran derivatives. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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11
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12
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Gabriele B, Mancuso R, Veltri L, Ziccarelli I, Della Ca' N. Palladium-Catalyzed Double Cyclization Processes Leading to Polycyclic Heterocycles: Recent Advances. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900481] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Bartolo Gabriele
- Laboratory of Industrial and Synthetic Organic Chemistry; Department of Chemistry and Chemical Technologies; University of Calabria;; Via Pietro Bucci 12 C 87036 Arcavacata di Rende (CS) Italy
| | - Raffaella Mancuso
- Laboratory of Industrial and Synthetic Organic Chemistry; Department of Chemistry and Chemical Technologies; University of Calabria;; Via Pietro Bucci 12 C 87036 Arcavacata di Rende (CS) Italy
| | - Lucia Veltri
- Laboratory of Industrial and Synthetic Organic Chemistry; Department of Chemistry and Chemical Technologies; University of Calabria;; Via Pietro Bucci 12 C 87036 Arcavacata di Rende (CS) Italy
| | - Ida Ziccarelli
- Laboratory of Industrial and Synthetic Organic Chemistry; Department of Chemistry and Chemical Technologies; University of Calabria;; Via Pietro Bucci 12 C 87036 Arcavacata di Rende (CS) Italy
| | - Nicola Della Ca'
- Department of Chemistry; Life Sciences and Environmental Sustainability; University of Parma; Parco Area delle Scienze 17/A 43124 Parma Italy
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13
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Reyes-Rodríguez GJ, Rezayee NM, Vidal-Albalat A, Jørgensen KA. Prevalence of Diarylprolinol Silyl Ethers as Catalysts in Total Synthesis and Patents. Chem Rev 2019; 119:4221-4260. [DOI: 10.1021/acs.chemrev.8b00583] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - Nomaan M. Rezayee
- Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
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14
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Yoo BI, Kim YJ, You Y, Yang JW, Kim SW. Birch Reduction of Aromatic Compounds by Inorganic Electride [Ca 2N] +•e - in an Alcoholic Solvent: An Analogue of Solvated Electrons. J Org Chem 2018; 83:13847-13853. [PMID: 30351945 DOI: 10.1021/acs.joc.8b02094] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Birch reduction of aromatic systems by solvated electrons in alkali metal-ammonia solutions is widely recognized as a key reaction that functionalizes highly stable π-conjugated organic systems. In spite of recent advances in Birch reduction with regard to reducing agent and reaction conditions, there remains an ongoing challenge to develop a simple and efficient Birch reaction under mild conditions. Here, we demonstrate that the inorganic electride [Ca2N]+•e- promotes the Birch reduction of polycyclic aromatic hydrocarbons (PAHs) and naphthalene under alcoholic solvent in the vicinity of room temperature as a solid-type analogy to solvated electrons in alkali metal ammonia solutions. The anionic electrons from electride [Ca2N]+•e- are transferred to PAHs and naphthalene via alcoholysis in a polar cosolvent medium. It is noteworthy that a high conversion yield to the hydrogenated products is ascribed to the extremely high electron transfer efficiency of 98%. This simple protocol utilizing an inorganic electride offers a direct and practical strategy for the reduction of aromatic compounds and provides an outstanding reducing agent for synthetic chemistry.
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Affiliation(s)
- Byung Il Yoo
- Department of Energy Science , Sungkyunkwan University , Suwon 440-746 , Republic of Korea
| | - Ye Ji Kim
- Department of Energy Science , Sungkyunkwan University , Suwon 440-746 , Republic of Korea.,Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS) , Sungkyunkwan University , Suwon 440-746 , Republic of Korea
| | - YoungMin You
- Division of Chemical Engineering and Materials Science , Ewha Womans University , Seoul 120-750 , Republic of Korea
| | - Jung Woon Yang
- Department of Energy Science , Sungkyunkwan University , Suwon 440-746 , Republic of Korea
| | - Sung Wng Kim
- Department of Energy Science , Sungkyunkwan University , Suwon 440-746 , Republic of Korea
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15
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Nemoto T, Harada S, Nakajima M. Synthetic Methods for 3,4-Fused Tricyclic Indoles via Indole Ring Formation. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800336] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences; Chiba University; I1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
- Molecular Chirality Research Center; Chiba University; 1-33, Yayoi-cho, Inage-ku Chiba 263-8522, Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences; Chiba University; I1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Masaya Nakajima
- Graduate School of Pharmaceutical Sciences; Chiba University; I1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
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16
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Nemoto T. Synthesis of 3,4‐Fused Tricyclic Indoles Using 3‐Alkylidene Indolines as Versatile Precursors. CHEM REC 2018; 19:320-332. [DOI: 10.1002/tcr.201800043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/06/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Tetsuhiro Nemoto
- Graduate School of Pharmaceutical SciencesChiba University 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
- Molecular Chirality Research CenterChiba University 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
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17
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Abstract
This review discusses various biological and chemical aspects of the non-monoterpenoid azepinoindole class of alkaloids, including their isolation, biosynthesis and total synthesis.
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Affiliation(s)
- Ashley C. Lindsay
- School of Chemical Sciences
- University of Auckland
- Auckland
- New Zealand
| | - Se Hun Kim
- School of Chemical Sciences
- University of Auckland
- Auckland
- New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences
- University of Auckland
- Auckland
- New Zealand
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