1
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Lyu MY, Morais GN, Chen S, Brown MK. Ni-Catalyzed 1,1- and 1,3-Aminoboration of Unactivated Alkenes. J Am Chem Soc 2023; 145:27254-27261. [PMID: 38078874 PMCID: PMC11078560 DOI: 10.1021/jacs.3c12770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Alkene borylfunctionalization reactions have emerged as useful methods for chemical synthesis. While much progress has been made on 1,2-borylamination reactions, the related 1,1- and 1,3-borylaminations have not been reported. Herein, a Ni-catalyzed 1,1-borylamination of 1,1-disubstituted and monosubstituted alkenes and a 1,3-borylamination of cyclic alkenes are presented. Key to development of these reactions was the identification of an alkyllithium activator in combination with Mg salts. The utility of the products and the mechanistic details are discussed.
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Affiliation(s)
- Mao-Yun Lyu
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave, Bloomington, Indiana 47405, United States
| | - Gabriel N Morais
- Department of Chemistry and Biochemistry, Oberlin College, 119 Woodland St, Oberlin, Ohio 44074, United States
| | - Shuming Chen
- Department of Chemistry and Biochemistry, Oberlin College, 119 Woodland St, Oberlin, Ohio 44074, United States
| | - M Kevin Brown
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave, Bloomington, Indiana 47405, United States
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2
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Manenti M, Gusmini S, Lo Presti L, Molteni G, Silvani A. Enantiopure β-isocyano-boronic esters: synthesis and exploitation in isocyanide-based multicomponent reactions. Mol Divers 2023; 27:2161-2168. [PMID: 36258147 PMCID: PMC10520151 DOI: 10.1007/s11030-022-10549-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/07/2022] [Indexed: 11/28/2022]
Abstract
Various boron-containing isocyanides have been efficiently synthesized from the corresponding enantiopure β-substituted β-amino boronic acid pinacol esters, without need for protecting group interconversion, through a two-step, purification-free procedure. They were employed in a variety of isocyanide-based multicomponent reactions, proving to be reliable components for all of them and allowing the efficient synthesis of unprecedented, boron-containing peptidomimetics and heteroatom-rich small molecules, including biologically relevant cyclic boronates. Jointing together the β-amido boronic acid moiety, deriving from the isocyanide component, with prominent pharmacophoric rings emerging from the multicomponent process, a successful application of the molecular hybridization concept could be realized.
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Affiliation(s)
- Marco Manenti
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milan, Italy
| | - Simone Gusmini
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milan, Italy
| | - Leonardo Lo Presti
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milan, Italy
| | - Giorgio Molteni
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milan, Italy
| | - Alessandra Silvani
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milan, Italy.
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3
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Xu M, Ouyang Y, Wang L, Zhang S, Li P. Enantioselective synthesis of cyclic α-aminoboronates via copper-catalyzed dearomative borylation of 4-quinolinols. Chem Commun (Camb) 2022; 58:3677-3680. [PMID: 35225322 DOI: 10.1039/d2cc00027j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective and regioselective dearomative borylation of 4-quinolinols was developed using a Cu(I)/(R,R)-Ph-BPE catalyst for efficient synthesis of unprecedented heterocyclic α-amino boronates, a new class of compounds potentially relevant to drug discovery, in generally excellent yields and enantioselectivities. The products were also useful intermediates for highly functionalized tetrahydroquinolines and cyclic α-aminoboronate derivatives.
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Affiliation(s)
- Ming Xu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, 99 Yanxiang Road, Xi'an 710054, China.
| | - Yizhao Ouyang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, 99 Yanxiang Road, Xi'an 710054, China.
| | - Linghua Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, 99 Yanxiang Road, Xi'an 710054, China.
| | - Shuai Zhang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, 99 Yanxiang Road, Xi'an 710054, China.
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, 99 Yanxiang Road, Xi'an 710054, China. .,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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4
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Fernández NLG, Medina RE, Vallejos MM. Ability of Boron to Act as a Nucleophile and an Electrophile in Boryl Shift Reactions Unveiled by Electron Density Distribution Analysis. J Org Chem 2022; 87:4680-4691. [PMID: 35266696 DOI: 10.1021/acs.joc.1c03119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The behavior of the tetracoordinate boron of N-methyliminodiacetic acid (MIDA) boronates as a nucleophile and an electrophile during the 1,2-boryl migration promoted by a Lewis acid and the 1,4-boryl migration promoted by a neighboring atom, respectively, have been investigated using density functional theory and the quantum theory of atoms in molecules. We found that when boron acts as a nucleophile, the electron density of the B-N interaction of the BMIDA moiety maintains the charge concentration over the boron atom, facilitating its transport toward the electron-deficient center. In this process, the BMIDA remains as a tetracoordinate. On the other hand, the B-N weakening generates a charge depletion region over the boron, allowing it to interact with the electron-rich center of O1, developing the boron atom, a pentacoordinate form. Then, the B-N bond breaking triggers a series of changes in the electronic structure of the boron atom. Our results explain the role of the MIDA ligand upon the remarkable susceptibility of the boron atom for switching its structural and electronic characteristics in the migration processes. In addition, the dichotomous behavior was evaluated with a different scenario, considering tricoordinate pinacol boronate as a boryl migrating group.
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Affiliation(s)
- Nora Lis G Fernández
- Laboratorio de Química Orgánica, Instituto de Química Básica y Aplicada del NEA (IQUIBA-NEA, UNNE-CONICET), Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Av. Libertad 5460, Corrientes 3400, Argentina
| | - Roxana E Medina
- Laboratorio de Química Orgánica, Instituto de Química Básica y Aplicada del NEA (IQUIBA-NEA, UNNE-CONICET), Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Av. Libertad 5460, Corrientes 3400, Argentina
| | - Margarita M Vallejos
- Laboratorio de Química Orgánica, Instituto de Química Básica y Aplicada del NEA (IQUIBA-NEA, UNNE-CONICET), Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Av. Libertad 5460, Corrientes 3400, Argentina
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5
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Šterman A, Sosič I, Časar Z. Primary trifluoroborate-iminiums enable facile access to chiral α-aminoboronic acids via Ru-catalyzed asymmetric hydrogenation and simple hydrolysis of the trifluoroborate moiety. Chem Sci 2022; 13:2946-2953. [PMID: 35432849 PMCID: PMC8905798 DOI: 10.1039/d1sc07065g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 01/26/2022] [Indexed: 01/22/2023] Open
Abstract
This work describes the first preparation and application of primary trifluoroborate-iminiums (pTIMs) as a new, easily accessible and valuable class of organoboron derivatives. An array of structurally diverse pTIMs was prepared from potassium acyltrifluoroborates in excellent yields. Highly efficient and enantioselective [(R,R)-TethTsDpen-RuCl] complex-catalyzed hydrogenation of pTIMs provided direct access to chiral primary trifluoroborate-ammoniums (pTAMs). Moreover, facile synthesis of a series of structurally diverse chiral α-aminoboronic acids from chiral pTAMs was accomplished through novel, operationally simple and efficient conversion using hexamethyldisiloxane/aqueous HCl. Using no chromatography at any point, this work allowed easy access to chiral α-aminoboronic acids, as exemplified by the synthesis of optically pure anti-cancer drugs bortezomib and ixazomib.
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Affiliation(s)
- Andrej Šterman
- Faculty of Pharmacy, University of Ljubljana Aškerčeva cesta 7 SI-1000 Ljubljana Slovenia
| | - Izidor Sosič
- Faculty of Pharmacy, University of Ljubljana Aškerčeva cesta 7 SI-1000 Ljubljana Slovenia
| | - Zdenko Časar
- Faculty of Pharmacy, University of Ljubljana Aškerčeva cesta 7 SI-1000 Ljubljana Slovenia
- Lek Pharmaceuticals d.d., Sandoz Development Center Slovenia Verovškova ulica 57 SI-1526 Ljubljana Slovenia
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6
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Tao X, Ni S, Kong L, Wang Y, Pan Y. Radical boron migration of allylboronic esters. Chem Sci 2022; 13:1946-1950. [PMID: 35308850 PMCID: PMC8848984 DOI: 10.1039/d1sc06760e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/14/2022] [Indexed: 11/21/2022] Open
Abstract
A photocatalyzed 1,3-boron shift of allylboronic esters is reported. The atom-switch acrobatics proceeds via cascade 1,2-boron migrations and Smiles type rearrangement to furnish a variety of terminally functionalized alkyl boronates.
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Affiliation(s)
- Xiangzhang Tao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shengyang Ni
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Lingyu Kong
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi Pan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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7
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Ming W, Soor HS, Liu X, Trofimova A, Yudin AK, Marder TB. α-Aminoboronates: recent advances in their preparation and synthetic applications. Chem Soc Rev 2021; 50:12151-12188. [PMID: 34585200 DOI: 10.1039/d1cs00423a] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
α-Aminoboronic acids and their derivatives are useful as bioactive agents. Thus far, three compounds containing an α-aminoboronate motif have been approved by the Food and Drug Administration (FDA) as protease inhibitors, and more are currently undergoing clinical trials. In addition, α-aminoboronic acids and their derivatives have found applications in organic synthesis, e.g. as α-aminomethylation reagents for the synthesis of chiral nitrogen-containing molecules, as nucleophiles for preparing valuable vicinal amino alcohols, and as bis-nucleophiles in the construction of valuable small molecule scaffolds. This review summarizes new methodology for the preparation of α-aminoboronates, including highlights of asymmetric synthetic methods and mechanistic explanations of reactivity. Applications of α-aminoboronates as versatile synthetic building blocks are also discussed.
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Affiliation(s)
- Wenbo Ming
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
| | - Harjeet S Soor
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada.
| | - Xiaocui Liu
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
| | - Alina Trofimova
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada.
| | - Andrei K Yudin
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada.
| | - Todd B Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
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8
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Kelly AM, Chen PJ, Klubnick J, Blair DJ, Burke MD. A Mild Method for Making MIDA Boronates. Org Lett 2020; 22:9408-9414. [DOI: 10.1021/acs.orglett.0c02449] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aidan M. Kelly
- Roger Adams Laboratory, School of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S, Mathews Avenue, Urbana, Illinois 61801, United States
| | - Peng-Jui Chen
- Roger Adams Laboratory, School of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S, Mathews Avenue, Urbana, Illinois 61801, United States
| | - Jenna Klubnick
- Roger Adams Laboratory, School of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S, Mathews Avenue, Urbana, Illinois 61801, United States
| | - Daniel J. Blair
- Roger Adams Laboratory, School of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S, Mathews Avenue, Urbana, Illinois 61801, United States
| | - Martin D. Burke
- Roger Adams Laboratory, School of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S, Mathews Avenue, Urbana, Illinois 61801, United States
- Carle Illinois College of Medicine, 807 South Wright Street, Urbana, Illinois 61820, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana−Champaign, 1206 West Gregory Dr., Urbana, Illinois 61801, United States
- Arnold and Mabel Beckman Institute, University of Illinois at Urbana−Champaign, 405 North Mathews Ave., Urbana, Illinois 61801, United States
- Department of Biochemistry, University of Illinois at Urbana−Champaign, 600 S Mathews Avenue, Urbana, Illinois 61801, United States
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9
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Fan D, Zhang J, Hu Y, Zhang Z, Gridnev ID, Zhang W. Asymmetric Hydrogenation of α-Boryl Enamides Enabled by Nonbonding Interactions. ACS Catal 2020. [DOI: 10.1021/acscatal.9b04543] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dongyang Fan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Jian Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yanhua Hu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Zhenfeng Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Ilya D. Gridnev
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki 3-6, Aoba-ku, Sendai 980-8578, Japan
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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10
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Gao DW, Gao Y, Shao H, Qiao TZ, Wang X, Sanchez BB, Chen JS, Liu P, Engle KM. Cascade CuH-Catalysed Conversion of Alkynes to Enantioenriched 1,1-Disubstituted Products. Nat Catal 2019; 3:23-29. [PMID: 32420528 PMCID: PMC7227802 DOI: 10.1038/s41929-019-0384-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 10/18/2019] [Indexed: 01/09/2023]
Abstract
Enantioenriched α-aminoboronic acids play a unique role in medicinal chemistry and have emerged as privileged pharmacophores in proteasome inhibitors. Additionally, they represent synthetically useful chiral building blocks in organic synthesis. Recently, CuH-catalyzed asymmetric alkene hydrofunctionalization has become a powerful tool to construct stereogenic carbon centers. In contrast, applying CuH cascade catalysis to achieve reductive 1,1-difunctionalization of alkynes remains an important, but largely unaddressed, synthetic challenge. Herein, we report an efficient strategy to synthesize α-aminoboronates via CuH-catalyzed hydroboration/hydroamination cascade of readily available alkynes. Notably, this transformation selectively delivers the desired 1,1-heterodifunctionalized product in favor of alternative homodifunctionalized, 1,2-heterodifunctionalized, or reductively monofunctionalized byproducts, thereby offering rapid access to these privileged scaffolds with high chemo-, regio- and enantioselectivity.
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Affiliation(s)
- De-Wei Gao
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Yang Gao
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Huiling Shao
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, United States
| | - Tian-Zhang Qiao
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Xin Wang
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Brittany B Sanchez
- Automated Synthesis Facility, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Jason S Chen
- Automated Synthesis Facility, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, United States
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
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11
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Ming W, Liu X, Friedrich A, Krebs J, Marder TB. The Borono–Strecker Reaction: Synthesis of α-Aminoboronates via a Multicomponent Reaction of Carbonyl Compounds, Amines, and B2pin2. Org Lett 2019; 22:365-370. [DOI: 10.1021/acs.orglett.9b03773] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenbo Ming
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Xiaocui Liu
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Alexandra Friedrich
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Johannes Krebs
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Todd B. Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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12
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Bai XY, Zhao W, Sun X, Li BJ. Rhodium-Catalyzed Regiodivergent and Enantioselective Hydroboration of Enamides. J Am Chem Soc 2019; 141:19870-19878. [DOI: 10.1021/jacs.9b10578] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiao-Yan Bai
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Wei Zhao
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Xin Sun
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Bi-Jie Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
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13
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Tan DH, Cai YH, Zeng YF, Lv WX, Yang L, Li Q, Wang H. Diversity-Oriented Synthesis of α-Functionalized Acylborons and Borylated Heteroarenes by Nucleophilic Ring Opening of α-Chloroepoxyboronates. Angew Chem Int Ed Engl 2019; 58:13784-13788. [PMID: 31347254 DOI: 10.1002/anie.201907349] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/24/2019] [Indexed: 12/22/2022]
Abstract
The ring-opening reactions of N-methyliminodiacetyl (MIDA) α-chloroepoxyboronates with different nucleophiles allow the modular synthesis of a diverse array of organoboronates. These include seven types of α-functionalized acylboronates and seven types of borylated heteroarenes, some of which are difficult-to-access products using alternative methods. The common synthons, α-chloroepoxyboronates, could be viably synthesized by a two-step procedure from the corresponding alkenyl MIDA boronates. Mild reaction conditions, good functional-group tolerance, and generally good efficiency were observed. The utility of the products was also demonstrated.
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Affiliation(s)
- Dong-Hang Tan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yuan-Hong Cai
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yao-Fu Zeng
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Wen-Xin Lv
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Ling Yang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qingjiang Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Honggen Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.,State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of, Guangxi Normal University, Guilin, 541004, China
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14
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Tan D, Cai Y, Zeng Y, Lv W, Yang L, Li Q, Wang H. Diversity‐Oriented Synthesis of α‐Functionalized Acylborons and Borylated Heteroarenes by Nucleophilic Ring Opening of α‐Chloroepoxyboronates. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907349] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Dong‐Hang Tan
- Guangdong Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Yuan‐Hong Cai
- Guangdong Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Yao‐Fu Zeng
- Guangdong Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Wen‐Xin Lv
- Guangdong Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Ling Yang
- Guangdong Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Qingjiang Li
- Guangdong Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Honggen Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesSchool of Chemistry and Pharmaceutical Sciences ofGuangxi Normal University Guilin 541004 China
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15
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Tan J, Grouleff JJ, Jitkova Y, Diaz DB, Griffith EC, Shao W, Bogdanchikova AF, Poda G, Schimmer AD, Lee RE, Yudin AK. De Novo Design of Boron-Based Peptidomimetics as Potent Inhibitors of Human ClpP in the Presence of Human ClpX. J Med Chem 2019; 62:6377-6390. [PMID: 31187989 DOI: 10.1021/acs.jmedchem.9b00878] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Boronic acids have attracted the attention of synthetic and medicinal chemists due to boron's ability to modulate enzyme function. Recently, we demonstrated that boron-containing amphoteric building blocks facilitate the discovery of bioactive aminoboronic acids. Herein, we have augmented this capability with a de novo library design and a virtual screening platform modified for covalent ligands. This technique has allowed us to rapidly design and identify a series of α-aminoboronic acids as the first inhibitors of human ClpXP, which is responsible for the degradation of misfolded proteins.
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Affiliation(s)
- Joanne Tan
- Davenport Research Laboratories, Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Julie J Grouleff
- Drug Discovery Program , Ontario Institute for Cancer Research, MaRS Centre , 661 University Avenue , Suite 510 , Toronto , Ontario M5G 0A3 , Canada
| | - Yulia Jitkova
- Princess Margaret Cancer Centre , University Health Network , 610 University Avenue , Toronto , Ontario M5G 2M9 , Canada
| | - Diego B Diaz
- Davenport Research Laboratories, Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Elizabeth C Griffith
- Department of Chemical Biology and Therapeutics , St. Jude Children's Research Hospital , 262 Danny Thomas Place , Memphis , Tennessee 38105-3678 , United States
| | - Wenjie Shao
- Davenport Research Laboratories, Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Anastasia F Bogdanchikova
- Davenport Research Laboratories, Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Gennady Poda
- Drug Discovery Program , Ontario Institute for Cancer Research, MaRS Centre , 661 University Avenue , Suite 510 , Toronto , Ontario M5G 0A3 , Canada.,Leslie Dan Faculty of Pharmacy , University of Toronto , 144 College Street , Toronto , Ontario M5S 3M2 , Canada
| | - Aaron D Schimmer
- Princess Margaret Cancer Centre , University Health Network , 610 University Avenue , Toronto , Ontario M5G 2M9 , Canada
| | - Richard E Lee
- Department of Chemical Biology and Therapeutics , St. Jude Children's Research Hospital , 262 Danny Thomas Place , Memphis , Tennessee 38105-3678 , United States
| | - Andrei K Yudin
- Davenport Research Laboratories, Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
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16
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Fei X, Li C, Yu X, Liu H. Rh(III)-Catalyzed Hydroarylation of Alkyne MIDA Boronates via C–H Activation of Indole Derivatives. J Org Chem 2019; 84:6840-6850. [DOI: 10.1021/acs.joc.9b00638] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiao Fei
- State Key Laboratory of Bioengineering Reactors and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | | | - Xinhong Yu
- State Key Laboratory of Bioengineering Reactors and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
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17
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Hyland SN, Meck EA, Tortosa M, Clark TB. α-Amidoboronate esters by amide-directed alkane C H borylation. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Šterman A, Sosič I, Gobec S, Časar Z. Synthesis of aminoboronic acid derivatives: an update on recent advances. Org Chem Front 2019. [DOI: 10.1039/c9qo00626e] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Aminoboronic acids and their derivatives are particularly useful as drugs, probes and synthons. Recent developments in their synthesis are highlighted.
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Affiliation(s)
- Andrej Šterman
- University of Ljubljana
- Faculty of Pharmacy
- Chair of Medicinal Chemistry
- SI-1000 Ljubljana
- Slovenia
| | - Izidor Sosič
- University of Ljubljana
- Faculty of Pharmacy
- Chair of Medicinal Chemistry
- SI-1000 Ljubljana
- Slovenia
| | - Stanislav Gobec
- University of Ljubljana
- Faculty of Pharmacy
- Chair of Medicinal Chemistry
- SI-1000 Ljubljana
- Slovenia
| | - Zdenko Časar
- University of Ljubljana
- Faculty of Pharmacy
- Chair of Medicinal Chemistry
- SI-1000 Ljubljana
- Slovenia
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19
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Qi Q, Yang X, Fu X, Xu S, Negishi E. Highly Enantiospecific Borylation for Chiral α‐Amino Tertiary Boronic Esters. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809389] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Qingqing Qi
- Herbert C. Brown Laboratories of ChemistryPurdue University 560 Oval Drive West Lafayette IN 47907 USA
| | - Xuena Yang
- Herbert C. Brown Laboratories of ChemistryPurdue University 560 Oval Drive West Lafayette IN 47907 USA
| | - Xiaoping Fu
- Herbert C. Brown Laboratories of ChemistryPurdue University 560 Oval Drive West Lafayette IN 47907 USA
| | - Shiqing Xu
- Herbert C. Brown Laboratories of ChemistryPurdue University 560 Oval Drive West Lafayette IN 47907 USA
| | - Ei‐ichi Negishi
- Herbert C. Brown Laboratories of ChemistryPurdue University 560 Oval Drive West Lafayette IN 47907 USA
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20
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Qi Q, Yang X, Fu X, Xu S, Negishi EI. Highly Enantiospecific Borylation for Chiral α-Amino Tertiary Boronic Esters. Angew Chem Int Ed Engl 2018; 57:15138-15142. [PMID: 30291671 DOI: 10.1002/anie.201809389] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/30/2018] [Indexed: 12/12/2022]
Abstract
Herein we report a highly efficient and enantiospecific borylation method to synthesize a wide range of enantiopure (>99 % ee) α-amino tertiary boronic esters. The configurationally stable α-N-Boc substituted tertiary organolithium species and pinacolborane (HBpin) underwent enantiospecific borylation at -78 °C with the formation of a new stereogenic C-B bond. This reaction has a broad scope, enabling the synthesis of various α-amino tertiary boronic esters in excellent yields and, importantly, with universally excellent enantiospecificity (>99 % es) and complete retention of configuration.
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Affiliation(s)
- Qingqing Qi
- Herbert C. Brown Laboratories of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - Xuena Yang
- Herbert C. Brown Laboratories of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - Xiaoping Fu
- Herbert C. Brown Laboratories of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - Shiqing Xu
- Herbert C. Brown Laboratories of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - Ei-Ichi Negishi
- Herbert C. Brown Laboratories of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
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21
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Lee CF, Diaz DB, Holownia A, Kaldas SJ, Liew SK, Garrett GE, Dudding T, Yudin AK. Amine hemilability enables boron to mechanistically resemble either hydride or proton. Nat Chem 2018; 10:1062-1070. [DOI: 10.1038/s41557-018-0097-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 05/29/2018] [Indexed: 11/09/2022]
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22
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Chen L, Shen JJ, Gao Q, Xu S. Synthesis of cyclic chiral α-amino boronates by copper-catalyzed asymmetric dearomative borylation of indoles. Chem Sci 2018; 9:5855-5859. [PMID: 30079199 PMCID: PMC6050576 DOI: 10.1039/c8sc01815d] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 06/08/2018] [Indexed: 01/19/2023] Open
Abstract
A copper(i)-catalyzed dearomative borylation of N-alkoxycarbonyl protected indole-3-carboxylates has been developed. The boron addition in this reaction occurred regioselectively at the 2-position of indoles followed by diastereoselective protonation, affording the corresponding stable cyclic chiral α-amino boronates (2-borylindolines) in moderate to good yields with excellent diastereo- and enantioselectivities. The product 2c could be used as a versatile precursor to undergo subsequent stereoselective transformations, delivering highly functionalized 2,3,3-trisubstituted chiral indolines.
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Affiliation(s)
- Lili Chen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation , Centre for Excellence in Molecular Synthesis , Suzhou Research Institute , Lanzhou Institute of Chemical Physics , University of Chinese Academy of Sciences , Chinese Academy of Sciences , Lanzhou 730000 , China .
| | - Jun-Jian Shen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation , Centre for Excellence in Molecular Synthesis , Suzhou Research Institute , Lanzhou Institute of Chemical Physics , University of Chinese Academy of Sciences , Chinese Academy of Sciences , Lanzhou 730000 , China .
| | - Qian Gao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation , Centre for Excellence in Molecular Synthesis , Suzhou Research Institute , Lanzhou Institute of Chemical Physics , University of Chinese Academy of Sciences , Chinese Academy of Sciences , Lanzhou 730000 , China .
| | - Senmiao Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation , Centre for Excellence in Molecular Synthesis , Suzhou Research Institute , Lanzhou Institute of Chemical Physics , University of Chinese Academy of Sciences , Chinese Academy of Sciences , Lanzhou 730000 , China .
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education , Hangzhou Normal University , Hangzhou 311121 , China
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23
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Allen TH, Horner AR, Geib SJ, Weber SG, Curran DP. Synthesis, Structure, and Acidity Constants of Ligated α-Boryl Acetic Acids. Chemistry 2018; 24:822-825. [PMID: 29207202 DOI: 10.1002/chem.201705754] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Indexed: 11/09/2022]
Abstract
Basic hydrolyses of various ligated α-boryl acetic acid esters provided the first ligated derivatives of the unknown compound boroacetic acid (BH2 CH2 CO2 H). Four monoacids (L-BH2 CH2 CO2 H) and one diacid (L-BH(CH2 CO2 H)2 ) were prepared with N-heterocyclic carbene, amine, and pyridine ligands (L). The stable acids were characterized by X-ray crystallography and acidity constant (pKa ) measurements. They rank among the least acidic of all known carboxylic acids. In turn, their conjugate bases are among the strongest of all carboxylates.
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Affiliation(s)
- Thomas H Allen
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Anthony R Horner
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Steven J Geib
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Stephen G Weber
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Dennis P Curran
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
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24
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López A, Clark TB, Parra A, Tortosa M. Copper-Catalyzed Enantioselective Synthesis of β-Boron β-Amino Esters. Org Lett 2017; 19:6272-6275. [DOI: 10.1021/acs.orglett.7b02784] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Timothy B. Clark
- Department
of Chemistry and Biochemistry, University of San Diego, San Diego, California 92210, United States
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25
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Campos J, Nova A, Kolychev EL, Aldridge S. A Combined Experimental/Computational Study of the Mechanism of a Palladium-Catalyzed Bora-Negishi Reaction. Chemistry 2017; 23:12655-12667. [DOI: 10.1002/chem.201702703] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Jesús Campos
- Inorganic Chemistry Laboratory; South Parks Road Oxford OX1 3QR UK
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC).; Avenida Américo Vespucio 49 41092 Sevilla Spain
| | - Ainara Nova
- Centre for Theoretical and Computational Chemistry (CTCC); Department of Chemistry; University of Oslo, P. O. Box 1033 Blindern; 0315 Oslo Norway
| | | | - Simon Aldridge
- Inorganic Chemistry Laboratory; South Parks Road Oxford OX1 3QR UK
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26
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Kaldas SJ, O'Keefe KTV, Mendoza-Sanchez R, Yudin AK. Amphoteric Borylketenimines: Versatile Intermediates in the Synthesis of Borylated Heterocycles. Chemistry 2017; 23:9711-9715. [DOI: 10.1002/chem.201702008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Sherif J. Kaldas
- Davenport Research Laboratories; Department of Chemistry; University of Toronto; 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Kowan T. V. O'Keefe
- Davenport Research Laboratories; Department of Chemistry; University of Toronto; 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Rodrigo Mendoza-Sanchez
- Davenport Research Laboratories; Department of Chemistry; University of Toronto; 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Andrei K. Yudin
- Davenport Research Laboratories; Department of Chemistry; University of Toronto; 80 St. George St. Toronto ON M5S 3H6 Canada
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27
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Chen L, Zou X, Zhao H, Xu S. Copper-Catalyzed Asymmetric Protoboration of β-Amidoacrylonitriles and β-Amidoacrylate Esters: An Efficient Approach to Functionalized Chiral α-Amino Boronate Esters. Org Lett 2017. [DOI: 10.1021/acs.orglett.7b01740] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lili Chen
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 73000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoliang Zou
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 73000, China
| | - Haonan Zhao
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 73000, China
| | - Senmiao Xu
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 73000, China
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28
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Vallejos MM, Pellegrinet SC. Theoretical Study of the BF3-Promoted Rearrangement of Oxiranyl N-Methyliminodiacetic Acid Boronates. J Org Chem 2017; 82:5917-5925. [DOI: 10.1021/acs.joc.7b01096] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Margarita M. Vallejos
- Laboratorio
de Química Orgánica, IQUIBA-NEA, Universidad Nacional del Nordeste, CONICET, FACENA, Av. Libertad 5460, Corrientes 3400, Argentina
| | - Silvina C. Pellegrinet
- Instituto
de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas
y Farmacéuticas, Universidad Nacional de Rosario, Suipacha
531, Rosario 2000, Argentina
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29
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Vara BA, Jouffroy M, Molander GA. C(sp 3)-C(sp 2) cross-coupling of alkylsilicates with borylated aryl bromides - an iterative platform to alkylated aryl- and heteroaryl boronates. Chem Sci 2017; 8:530-535. [PMID: 28451200 PMCID: PMC5351799 DOI: 10.1039/c6sc03236b] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 09/03/2016] [Indexed: 12/26/2022] Open
Abstract
The attractive field of iterative cross-coupling has seen numerous advances, although almost exclusively in the union of sp2-hybridized partners. Conspicuously absent from this useful synthetic manifold is the inclusion of sp3-hybridized pronucleophiles that can undergo transmetalation under mild conditions. Described here is the use of primary and secondary ammonium alkylsilicates, which undergo facile C(sp3)-C(sp2) cross-coupling with borylated aryl bromide partners under photoredox/nickel dual catalysis conditions. This operationally simple procedure allows the production of alkylated small molecules possessing boronate ester (BPin, Bneopentyl, BMIDA) functional handles. Because of the extremely mild reaction conditions and the innocuous byproduct generated upon fragmentative oxidation of silicates, the corresponding borylated compounds were isolated in good to excellent yields. Aryl bromides bearing unprotected boronic acids are also generally tolerated for the first time and prove useful in multistep syntheses. Unlike many previously reported photoredox/Ni dual cross-couplings, the C(sp3)-C(sp2) bonds were forged using a transition metal-free photocatalyst, allowing a substantial increase in sustainability as well as a cost reduction. Because the developed Ni-catalyzed cross-coupling does not require discrete boron speciation control, as in many popular orthogonal Pd-based methods, this protocol represents a significant advance in atom- and step-economy.
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Affiliation(s)
- Brandon A Vara
- Roy and Diana Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , USA .
| | - Matthieu Jouffroy
- Roy and Diana Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , USA .
| | - Gary A Molander
- Roy and Diana Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , USA .
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30
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Scharnagl FK, Bose SK, Marder TB. Acylboranes: synthetic strategies and applications. Org Biomol Chem 2017; 15:1738-1752. [DOI: 10.1039/c6ob02425d] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Acylboranes are an attractive class of compounds, of which the synthesis has very recently been documented as summarised in this review. Access to these compounds provides a path to study their properties and reactivity.
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Affiliation(s)
- Florian Korbinian Scharnagl
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
| | - Shubhankar Kumar Bose
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
- Centre for Nano and Material Sciences (CNMS)
| | - Todd B. Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
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31
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Nishikawa D, Hirano K, Miura M. Copper-Catalyzed Regio- and Stereoselective Aminoboration of Alkenylboronates. Org Lett 2016; 18:4856-4859. [DOI: 10.1021/acs.orglett.6b02338] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Daiki Nishikawa
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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32
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Anthore-Dalion L, Liu Q, Zard SZ. A Radical Bidirectional Fragment Coupling Route to Unsymmetrical Ketones. J Am Chem Soc 2016; 138:8404-7. [PMID: 27348440 DOI: 10.1021/jacs.6b05344] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A powerful strategy for the regioselective bidirectional synthesis of unsymmetrically substituted ketones is described, relying on the fact that the exchange of a xanthate is much faster than the radical addition to an unactivated alkene. The use of an alkene as the formal "alkylating" agent associated with the tolerance for numerous functional groups and the mildness of the experimental conditions removes many of the problems associated with the classical ionic and transition-metal-based approaches.
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Affiliation(s)
- Lucile Anthore-Dalion
- Laboratoire de Synthèse
Organique, CNRS UMR 7652, Ecole Polytechnique, 91128 Palaiseau
Cedex, France
| | - Qiang Liu
- Laboratoire de Synthèse
Organique, CNRS UMR 7652, Ecole Polytechnique, 91128 Palaiseau
Cedex, France
| | - Samir Z. Zard
- Laboratoire de Synthèse
Organique, CNRS UMR 7652, Ecole Polytechnique, 91128 Palaiseau
Cedex, France
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33
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Li D, Wu T, Liang K, Xia C. Curtius-like Rearrangement of an Iron–Nitrenoid Complex and Application in Biomimetic Synthesis of Bisindolylmethanes. Org Lett 2016; 18:2228-31. [PMID: 27116426 DOI: 10.1021/acs.orglett.6b00864] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dashan Li
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ting Wu
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kangjiang Liang
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chengfeng Xia
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Key
Laboratory of Medicinal Chemistry for Natural Resources, Ministry
of Education, Yunnan University, Kunming 650091, China
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34
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Dumas AM, Sieradzki AJ, Donnelly LJ. Exploiting the Bis-Nucleophilicity of α-Aminoboronates: Copper-Catalyzed, Intramolecular Aminoalkylations of Bromobenzoyl Chlorides. Org Lett 2016; 18:1848-51. [PMID: 27017848 DOI: 10.1021/acs.orglett.6b00586] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
α-Aminoboronate salts are interesting examples of heteroatomic species containing adjacent nucleophilic centers. We have developed an acylation/arylation reaction using 2-bromobenzoyl chlorides as bis-electrophiles that harnesses the nucleophilicity of both positions, leading to isoindolinones. The reactions proceed under mild conditions via an intramolecular, Cu-catalyzed sp(3)-sp(2) coupling, giving products in up to 95% yield. These conditions enable arylation of α,α-disubstituted aminoboronates, which are difficult to accomplish using methods based on less abundant and more expensive transition metals.
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Affiliation(s)
- Aaron M Dumas
- Department of Process Chemistry, Merck Sharp and Dohme Ltd. , Hertford Road, Hoddesdon EN11 9BU, United Kingdom
| | - Adrian J Sieradzki
- Department of Process Chemistry, Merck Sharp and Dohme Ltd. , Hertford Road, Hoddesdon EN11 9BU, United Kingdom
| | - Liam J Donnelly
- Department of Process Chemistry, Merck Sharp and Dohme Ltd. , Hertford Road, Hoddesdon EN11 9BU, United Kingdom
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35
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Abstract
This review describes available methods for the preparation of α-aminoboronic acids in their racemic or in their enantiopure form. Both, highly stereoselective syntheses and asymmetric procedures leading to the stereocontrolled generation of α-aminoboronic acid derivatives are included. The preparation of acyclic, carbocyclic and azacyclic α-aminoboronic acid derivatives is covered. Within each section, the different synthetic approaches have been classified according to the key bond which is formed to complete the α-aminoboronic acid skeleton.
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Affiliation(s)
- Patricia Andrés
- Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain.
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36
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Meng G, Szostak M. Palladium-catalyzed Suzuki–Miyaura coupling of amides by carbon–nitrogen cleavage: general strategy for amide N–C bond activation. Org Biomol Chem 2016; 14:5690-707. [DOI: 10.1039/c6ob00084c] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A unified strategy for the palladium-catalyzed Suzuki–Miyaura cross-coupling of amides with boronic acids for the synthesis of ketones by N–C bond activation is reported.
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37
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Vincent-Rocan JF, Ivanovich RA, Clavette C, Leckett K, Bejjani J, Beauchemin AM. Cascade reactions of nitrogen-substituted isocyanates: a new tool in heterocyclic chemistry. Chem Sci 2016; 7:315-328. [PMID: 29861985 PMCID: PMC5952554 DOI: 10.1039/c5sc03197d] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 09/22/2015] [Indexed: 11/25/2022] Open
Abstract
In contrast to normal C-substituted isocyanates, nitrogen-substituted isocyanates (N-isocyanates) are rare. Their high reactivity and amphoteric/ambident nature has prevented the scientific community from exploiting their synthetic potential. Recently, we have developed an in situ formation approach using a reversible equilibrium, which allows controlled generation and reactivity of N-isocyanates and prevents the dimerization that is typically observed with these intermediates. This blocked (masked) N-isocyanate approach enables the use of various N-isocyanate precursors to assemble heterocycles possessing the N-N-C[double bond, length as m-dash]O motif, which is often found in agrochemicals and pharmaceuticals. Cascade reactions for the rapid assembly of several valuable 5- and 6-membered heterocycles are reported, including amino-hydantoins, acyl-pyrazoles, acyl-phthalazinones and azauracils. Over 100 different compounds were synthesized using amino-, imino- and amido-substituted N-isocyanates, demonstrating their potential as powerful intermediates in heterocyclic synthesis. Their reactivity also enables access to unprecedented bicyclic derivatives and to substitution patterns of azauracils that are difficult to access using known methods, illustrating that controlled reactivity of N-isocyanates provides new disconnections, and a new tool to assemble complex N-N-C[double bond, length as m-dash]O containing motifs.
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Affiliation(s)
- Jean-François Vincent-Rocan
- Centre for Catalysis Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , ON K1N 6N5 , Canada .
| | - Ryan A Ivanovich
- Centre for Catalysis Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , ON K1N 6N5 , Canada .
| | - Christian Clavette
- Centre for Catalysis Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , ON K1N 6N5 , Canada .
| | - Kyle Leckett
- Centre for Catalysis Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , ON K1N 6N5 , Canada .
| | - Julien Bejjani
- Centre for Catalysis Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , ON K1N 6N5 , Canada .
| | - André M Beauchemin
- Centre for Catalysis Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , ON K1N 6N5 , Canada .
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38
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Nishikawa D, Hirano K, Miura M. Asymmetric Synthesis of α-Aminoboronic Acid Derivatives by Copper-Catalyzed Enantioselective Hydroamination. J Am Chem Soc 2015; 137:15620-3. [DOI: 10.1021/jacs.5b09773] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Daiki Nishikawa
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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39
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Muir CW, Vantourout JC, Isidro-Llobet A, Macdonald SJF, Watson AJB. One-Pot Homologation of Boronic Acids: A Platform for Diversity-Oriented Synthesis. Org Lett 2015; 17:6030-3. [DOI: 10.1021/acs.orglett.5b03030] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Calum W. Muir
- Department
of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral St., Glasgow, G1 1XL, U.K
| | - Julien C. Vantourout
- Department
of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral St., Glasgow, G1 1XL, U.K
- GlaxoSmithKline, Medicines Research Centre, Gunnels Wood Road, Stevenage,
Hertfordshire, SG1 2NY, U.K
| | - Albert Isidro-Llobet
- GlaxoSmithKline, Medicines Research Centre, Gunnels Wood Road, Stevenage,
Hertfordshire, SG1 2NY, U.K
| | - Simon J. F. Macdonald
- GlaxoSmithKline, Medicines Research Centre, Gunnels Wood Road, Stevenage,
Hertfordshire, SG1 2NY, U.K
| | - Allan J. B. Watson
- Department
of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral St., Glasgow, G1 1XL, U.K
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40
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St. Denis JD, Lee CF, Yudin AK. Access to Cyclic Amino Boronates via Rhodium-Catalyzed Functionalization of Alkyl MIDA Boronates. Org Lett 2015; 17:5764-7. [DOI: 10.1021/acs.orglett.5b02861] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jeffrey D. St. Denis
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S
3H6, Canada
| | - C. Frank Lee
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S
3H6, Canada
| | - Andrei K. Yudin
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S
3H6, Canada
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41
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Adachi S, Liew SK, Lee CF, Lough A, He Z, Denis JDS, Poda G, Yudin AK. Condensation-Driven Assembly of Boron-Containing Bis(Heteroaryl) Motifs Using a Linchpin Approach. Org Lett 2015; 17:5594-7. [DOI: 10.1021/acs.orglett.5b02741] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shinya Adachi
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada
| | - Sean K. Liew
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada
| | - C. Frank Lee
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada
| | - Alan Lough
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada
| | - Zhi He
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada
| | - Jeffrey D. St. Denis
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada
| | - Gennady Poda
- Drug
Discovery Program, Ontario Institute for Cancer Research, MaRS Centre, 661 University Avenue, Suite 510, Toronto, ON M5G 0A3, Canada
- Leslie
Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, ON M5S
3M2, Canada
| | - Andrei K. Yudin
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada
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42
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Campos J, Aldridge S. Catalytic Borylation using an Air‐Stable Zinc Boryl Reagent: Systematic Access to Elusive Acylboranes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507627] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jesús Campos
- Inorganic Chemistry Laboratory, Dept. of Chemistry, University of Oxford, South Parks Rd, Oxford (UK) OX1 3QR
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Dept. of Chemistry, University of Oxford, South Parks Rd, Oxford (UK) OX1 3QR
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43
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Campos J, Aldridge S. Catalytic Borylation using an Air-Stable Zinc Boryl Reagent: Systematic Access to Elusive Acylboranes. Angew Chem Int Ed Engl 2015; 54:14159-63. [DOI: 10.1002/anie.201507627] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Indexed: 12/11/2022]
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Li J, Grillo AS, Burke MD. From synthesis to function via iterative assembly of N-methyliminodiacetic acid boronate building blocks. Acc Chem Res 2015; 48:2297-307. [PMID: 26200460 PMCID: PMC4688257 DOI: 10.1021/acs.accounts.5b00128] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The study and optimization of small molecule function is often impeded by the time-intensive and specialist-dependent process that is typically used to make such compounds. In contrast, general and automated platforms have been developed for making peptides, oligonucleotides, and increasingly oligosaccharides, where synthesis is simplified to iterative applications of the same reactions. Inspired by the way natural products are biosynthesized via the iterative assembly of a defined set of building blocks, we developed a platform for small molecule synthesis involving the iterative coupling of haloboronic acids protected as the corresponding N-methyliminodiacetic acid (MIDA) boronates. Here we summarize our efforts thus far to develop this platform into a generalized and automated approach for small molecule synthesis. We and others have employed this approach to access many polyene-based compounds, including the polyene motifs found in >75% of all polyene natural products. This platform further allowed us to derivatize amphotericin B, the powerful and resistance-evasive but also highly toxic last line of defense in treating systemic fungal infections, and thereby understand its mechanism of action. This synthesis-enabled mechanistic understanding has led us to develop less toxic derivatives currently under evaluation as improved antifungal agents. To access more Csp(3)-containing small molecules, we gained a stereocontrolled entry into chiral, non-racemic α-boryl aldehydes through the discovery of a chiral derivative of MIDA. These α-boryl aldehydes are versatile intermediates for the synthesis of many Csp(3) boronate building blocks that are otherwise difficult to access. In addition, we demonstrated the utility of these types of building blocks in accessing pharmaceutically relevant targets via an iterative Csp(3) cross-coupling cycle. We have further expanded the scope of the platform to include stereochemically complex macrocyclic and polycyclic molecules using a linear-to-cyclized strategy, in which Csp(3) boronate building blocks are iteratively assembled into linear precursors that are then cyclized into the cyclic frameworks found in many natural products and natural product-like structures. Enabled by the serendipitous discovery of a catch-and-release protocol for generally purifying MIDA boronate intermediates, the platform has been automated. The synthesis of 14 distinct classes of small molecules, including pharmaceuticals, materials components, and polycyclic natural products, has been achieved using this new synthesis machine. It is anticipated that the scope of small molecules accessible by this platform will continue to expand via further developments in building block synthesis, Csp(3) cross-coupling methodologies, and cyclization strategies. Achieving these goals will enable the more generalized synthesis of small molecules and thereby help shift the rate-limiting step in small molecule science from synthesis to function.
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Affiliation(s)
- Junqi Li
- Howard Hughes Medical Institute and Roger Adams Laboratory, Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Anthony S Grillo
- Howard Hughes Medical Institute and Roger Adams Laboratory, Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Martin D Burke
- Howard Hughes Medical Institute and Roger Adams Laboratory, Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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45
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St. Denis JD, He Z, Yudin AK. Amphoteric α-Boryl Aldehyde Linchpins in the Synthesis of Heterocycles. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00790] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jeffrey D. St. Denis
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Zhi He
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Andrei K. Yudin
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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46
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Quiclet-Sire B, Zard SZ. Radical Instability in Aid of Efficiency: A Powerful Route to Highly Functional MIDA Boronates. J Am Chem Soc 2015; 137:6762-5. [DOI: 10.1021/jacs.5b03893] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Béatrice Quiclet-Sire
- Laboratoire de Synthèse
Organique, CNRS UMR 7652, Ecole Polytechnique, 91128 Palaiseau
Cedex, France
| | - Samir Z. Zard
- Laboratoire de Synthèse
Organique, CNRS UMR 7652, Ecole Polytechnique, 91128 Palaiseau
Cedex, France
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47
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Hu N, Zhao G, Zhang Y, Liu X, Li G, Tang W. Synthesis of Chiral α-Amino Tertiary Boronic Esters by Enantioselective Hydroboration of α-Arylenamides. J Am Chem Soc 2015; 137:6746-9. [DOI: 10.1021/jacs.5b03760] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Naifu Hu
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Guoqing Zhao
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Yuanyuan Zhang
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Xiangqian Liu
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Guangyu Li
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
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48
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Adachi S, Cognetta AB, Niphakis MJ, He Z, Zajdlik A, St Denis JD, Scully CCG, Cravatt BF, Yudin AK. Facile synthesis of borofragments and their evaluation in activity-based protein profiling. Chem Commun (Camb) 2015; 51:3608-11. [PMID: 25633248 PMCID: PMC4330092 DOI: 10.1039/c4cc09107h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The discovery of enzyme inhibitors relies on synthetic methods that enable rapid and modular construction of small molecules. Heterocyclic fragments designed to maximize enthalpic interactions with their protein targets represent a particularly desirable class of molecules. Here we describe a reagent that enables straightforward construction of "borofragments", in which a heterocycle is separated from the boron center by two or three rotatable bonds. The stability of these molecules depends on the MIDA group which likely acts as a slow-release element under biological conditions. Borofragments can be used to discover inhibitors of enzymes that use catalytic oxygen nucleophiles. We have employed this method to identify inhibitors of ABHD10 and the predicted carboxypeptidase CPVL. This technique should be applicable to other classes of targets.
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Affiliation(s)
- Shinya Adachi
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S3H6, Canada.
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49
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A Cascade Synthesis of Aminohydantoins Using In Situ-GeneratedN-Substituted Isocyanates. Chemistry 2015; 21:3886-90. [DOI: 10.1002/chem.201405648] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Indexed: 11/07/2022]
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50
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St Denis JD, Zajdlik A, Tan J, Trinchera P, Lee CF, He Z, Adachi S, Yudin AK. Boron-containing enamine and enamide linchpins in the synthesis of nitrogen heterocycles. J Am Chem Soc 2014; 136:17669-73. [PMID: 25422871 DOI: 10.1021/ja510963k] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The use of α-boryl enamine and enamide linchpins in the synthesis of nitrogen heterocycles has been demonstrated. Boryl enamines provide ready access to the corresponding α-halo aldehydes, which undergo regioselective annulation to form borylated thiazoles. A condensation/amidation sequence converts α-boryl aldehydes into stable α-boryl enamides without concomitant C → N migration. We also show that palladium-catalyzed cyclization of α-boryl enamides leads to synthetically versatile isoindolones. These molecules can be subsequently used to access polycyclic scaffolds.
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Affiliation(s)
- Jeffrey D St Denis
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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