1
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Baweja S, Kalal B, Maity S. Laser spectroscopic characterization of supersonic jet cooled 2,7-diazaindole. Phys Chem Chem Phys 2023; 25:26679-26691. [PMID: 37772686 DOI: 10.1039/d3cp03010e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
We report the first gas phase comprehensive study of the electronic spectroscopy of 2,7-diazaindole molecule in the ground and excited states. Single vibronic level fluorescence spectroscopy (SVLF) was performed to determine the ground state vibrations of the molecule, which depicted a large Franck-Condon activity beyond 2600 cm-1. For the excited state characterization, laser-induced fluorescence (LIF) and two-color resonant two-photon ionization spectroscopy (2C-R2PI) were performed. The band origin (000) for S1 ← S0 transition appeared at 33910 ± 1 cm-1 which was red shifted by 718 cm-1 and 1322 cm-1 compared to that of 7-azaindole and indole respectively. The Franck-Condon active vibrational modes in the spectra were seen till the (000) + 1600 cm-1 region. The IR-UV hole burning spectroscopy confirmed the absence of any other isomeric species in the molecular beam. The ionization energy (IE) of the molecule was measured as 8.921 ± 0.001 eV, recorded using photoionization efficiency spectroscopy. The above IE value was significantly higher than that of the related indole derivatives, suggesting the higher photostability of the 27DAI molecule due to N(2) insertion. The ground and excited state N-H stretching frequencies of the molecule were determined using fluorescence-dip infrared spectroscopy (FDIR) and resonant ion-dip infrared spectroscopy (IDIR), and the values are 3523 and 3467 cm-1, respectively. The lower value of νNH in the electronic excited state implied the increased photoacidity of the group. A comparative analysis of the experimental LIF/2C-R2PI spectra was done against Franck-Condon simulated spectra at three different levels of theory. The vibrational frequencies calculated at B3LYP-D4/def2-TZVPP showed the most accurate prediction in comparison with the experimentally detected symmetric modes in the ground state. However, in the excited state, the lower energy asymmetric modes simulated at the B3LYP/def-SVP level of theory provided the best agreement with the experiment. This is most probably due to the distortion observed at the pyrazolyl ring leading to the appearance of asymmetric vibrational modes. The above study highlights the possibility to appropriately tune the excitation wavelengths as well as alter the photostability of the organic chromophores via additional N-insertion in the molecular systems.
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Affiliation(s)
- Simran Baweja
- Department of Chemistry, IIT Hyderabad, Kandi, Sangareddy, Telangana, 502284, India.
| | - Bhavika Kalal
- Department of Chemistry, IIT Hyderabad, Kandi, Sangareddy, Telangana, 502284, India.
| | - Surajit Maity
- Department of Chemistry, IIT Hyderabad, Kandi, Sangareddy, Telangana, 502284, India.
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2
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Mityuk AP, Kiriakov OM, Tiutiunnyk VV, Lebed PS, Grabchuk GP, Rusanov EB, Volochnyuk DM, Ryabukhin SV. Trifluoromethyl Vinamidinium Salt as a Promising Precursor for Fused β-Trifluoromethyl Pyridines. J Org Chem 2023. [PMID: 36795967 DOI: 10.1021/acs.joc.2c02684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
An efficient chlorotrimethylsilane-promoted synthetic protocol for the preparation of functionalized fused β-trifluoromethyl pyridines by cyclization of electron-rich aminoheterocycles or substituted anilines with a trifluoromethyl vinamidinium salt was developed. The efficient and scalable approach for producing represented trifluoromethyl vinamidinium salt demonstrated huge prospects for further use. The structure specificities of the trifluoromethyl vinamidinium salt and their impact on the reaction progress were determined. The procedure's scope and alternative ways of the reaction were investigated. The possibility of increasing the reaction scale up to 50 g and further modification of obtained products was shown. A minilibrary of potential fragments for 19F NMR-based fragment-based drug discovery (FBDD) was synthesized.
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Affiliation(s)
| | | | | | - Pavlo S Lebed
- Enamine Ltd, 78 Chervonotkatska str., Kyiv 02094, Ukraine.,Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., Kyiv 02094, Ukraine
| | - Galyna P Grabchuk
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska str., Kyiv 01033, Ukraine
| | - Eduard B Rusanov
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., Kyiv 02094, Ukraine
| | - Dmitriy M Volochnyuk
- Enamine Ltd, 78 Chervonotkatska str., Kyiv 02094, Ukraine.,Taras Shevchenko National University of Kyiv, 60 Volodymyrska str., Kyiv 01033, Ukraine.,Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., Kyiv 02094, Ukraine
| | - Sergey V Ryabukhin
- Enamine Ltd, 78 Chervonotkatska str., Kyiv 02094, Ukraine.,Taras Shevchenko National University of Kyiv, 60 Volodymyrska str., Kyiv 01033, Ukraine.,Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., Kyiv 02094, Ukraine
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3
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Ballesteros-Garrido R. Recent developments in the synthesis of 4-, 5-, 6- and 7-azaindoles. ADVANCES IN HETEROCYCLIC CHEMISTRY 2023. [DOI: 10.1016/bs.aihch.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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4
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Manikpuri D, Pradhan DR, Chatterjee B, Gunanathan C. Ruthenium-catalyzed acceptorless dehydrogenation of heterocycles. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02108-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Ai HJ, Yuan Y, Wu XF. Ruthenium pincer complex-catalyzed heterocycle compatible alkoxycarbonylation of alkyl iodides: substrate keeps the catalyst active. Chem Sci 2022; 13:2481-2486. [PMID: 35310509 PMCID: PMC8864804 DOI: 10.1039/d1sc06581e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 02/05/2022] [Indexed: 11/28/2022] Open
Abstract
The electron pair of the heteroatom in heterocycles will coordinate with metal catalysts and decrease or even inhibit their catalytic activity consequently. In this work, a pincer ruthenium-catalyzed heterocycle compatible alkoxycarbonylation of alkyl iodides has been developed. Benefitting from the pincer ligand, a variety of heterocycles, such as thiophenes, morpholine, unprotected indoles, pyrrole, pyridine, pyrimidine, furan, thiazole, pyrazole, benzothiadiazole, and triazole, are compatible here.
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Affiliation(s)
- Han-Jun Ai
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Yang Yuan
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Science 116023 Dalian Liaoning China
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6
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Kassel VM, Hanneman CM, Delaney CP, Denmark SE. Heteroaryl-Heteroaryl, Suzuki-Miyaura, Anhydrous Cross-Coupling Reactions Enabled by Trimethyl Borate. J Am Chem Soc 2021; 143:13845-13853. [PMID: 34415757 DOI: 10.1021/jacs.1c06419] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Reaction conditions have been developed for refractory heteroaryl-heteroaryl Suzuki-Miyaura cross-couplings. The reported method employs neopentyl heteroarylboronic esters as nucleophiles, heteroaryl bromides and chlorides as the electrophiles, and the soluble base potassium trimethylsilanolate (TMSOK) under anhydrous conditions. The addition of trimethyl borate enhances reaction rates by several mechanisms, including (1) solubilization of in situ-generated boronate complexes, (2) preventing catalyst poisoning by the heteroatomic units, and (3) buffering the inhibitory effect of excess TMSOK. The use of this method enables cross-coupling of diverse reaction partners including a broad range of π-rich and π-deficient heteroaryl boronic esters and heteroaryl bromides. Reactions proceed in good yields and short reaction times (3 h or less).
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Affiliation(s)
- Vincent M Kassel
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Christopher M Hanneman
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Connor P Delaney
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
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7
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Rodriguez‐Oliva I, Losada‐Garcia N, Santos AS, Marques MMB, Palomo JM. Palladium Nanocatalysts for Cascade C−N Cross‐Coupling/Heck Reaction. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ivan Rodriguez‐Oliva
- Department of Biocatalysis Institute of Catalysis (CSIC) Marie Curie 2, Cantoblanco, Campus UAM 28049 Madrid Spain
| | - Noelia Losada‐Garcia
- Department of Biocatalysis Institute of Catalysis (CSIC) Marie Curie 2, Cantoblanco, Campus UAM 28049 Madrid Spain
| | - A. Sofia Santos
- LAQV@REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia Universidade Nova de Lisboa Campus de Caparica 2829-516 Caparica Portugal
| | - M. Manuel B. Marques
- LAQV@REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia Universidade Nova de Lisboa Campus de Caparica 2829-516 Caparica Portugal
| | - Jose M. Palomo
- Department of Biocatalysis Institute of Catalysis (CSIC) Marie Curie 2, Cantoblanco, Campus UAM 28049 Madrid Spain
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8
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FeCl3 catalyzed intermolecular reaction between enol ethers and anilines: Access to 2,3-substituted indoles through aryl group migration. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152583] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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9
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Li C, Fan W, Qi C, Zhang F. Four component synthesis of pyrrolo[3,2-c]pyridin-4-one derivatives. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152253] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Schütz R, Schmidt S, Bracher F. A versatile approach to 1-oxo-, 1-oxo-3,4-dihydro- and 1,3,4-trioxo isoquinoline alkaloids and first total synthesis of the dimeric 1-oxoisoquinoline alkaloids berbanine and berbidine. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Shoji T, Takagaki S, Ariga Y, Yamazaki A, Takeuchi M, Ohta A, Sekiguchi R, Mori S, Okujima T, Ito S. Molecular Transformation to Pyrroles, Pentafulvenes, and Pyrrolopyridines by [2+2] Cycloaddition of Propargylamines with Tetracyanoethylene. Chemistry 2020; 26:1931-1935. [DOI: 10.1002/chem.201904926] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/14/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Taku Shoji
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Sho Takagaki
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Yukino Ariga
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Akari Yamazaki
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Mutsumi Takeuchi
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Akira Ohta
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Ryuta Sekiguchi
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Shigeki Mori
- Advanced Research Support Center Ehime University Matsuyama 790-8577 Ehime Japan
| | - Tetsuo Okujima
- Department of Chemistry and Biology Graduate School of, Science and Engineering Ehime University Matsuyama 790-8577 Ehime Japan
| | - Shunji Ito
- Graduate School of Science and Technology Hirosaki University Hirosaki 036-8561 Aomori Japan
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12
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Reddy CR, Aila M, Sathish P, Mrinalini M, Giribabu L, Prasanthkumar S, Grée R. Metal-free propargylation/aza-annulation approach to substituted β-carbolines and evaluation of their photophysical properties. Org Biomol Chem 2019; 17:9291-9304. [PMID: 31626261 DOI: 10.1039/c9ob01959f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An efficient acid-catalyzed propargylation/aza-annulation sequence was developed under metal-free reaction conditions, thus leading to a one-pot synthesis of a variety of substituted β-carbolines starting from propargylic alcohols and indole 2-carbonyls. This versatile strategy was further extended to the synthesis of 5-azaindoles and 5-azabenzothiazoles. Optical properties suggested that manipulation of electron donor and acceptor moieties on β-carbolines has an impact on their ground and excited state electronic behavior. This leads to blue or green emission and should facilitate the development of organic light emitting diodes (OLEDs). Electrochemical and stability studies revealed that 4a-6 shows ease of redox activity and photostability during illumination.
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Affiliation(s)
- Chada Raji Reddy
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India.
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13
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Abstract
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A new synthesis of the 2,6-naphthyridine alkaloid 4-methyl-2,6-naphthyridine from Antirrhinum
majus has been developed. Key steps are a regioselective oxidation of 3-bromo-4,5-
dimethylpyridine to the corresponding 4-formyl derivative, and the annulation of the second pyridine
ring by Suzuki-Miyaura cross-coupling using (E)-2-ethoxyvinylboronic acid pinacol ester as a masked
acetaldehyde equivalent. This protocol gives the alkaloid in four steps starting from commercially
available 3,4-dimethylpyridine in 15% overall yield. This annulation protocol should be useful for the
synthesis of other condensed pyridines as well.
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Affiliation(s)
- Alexandra Kamlah
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians University, Butenandtstr 5-13, 81377, Munich, Germany
| | - Franz Bracher
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians University, Butenandtstr 5-13, 81377, Munich, Germany
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14
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Wang Z, Xue F, Hayashi T. Synthesis of Arylacetaldehydes by Iridium‐Catalyzed Arylation of Vinylene Carbonate with Arylboronic Acids. Angew Chem Int Ed Engl 2019; 58:11054-11057. [DOI: 10.1002/anie.201906148] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Zhe Wang
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Fei Xue
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Tamio Hayashi
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
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15
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Verma S, Kumar M, Mishra PK, Verma AK. Metal-Free Carbonyl-Assisted Regioselective Hydration of Alkynes: An Access to Dicarbonyls. Org Lett 2019; 21:5059-5063. [PMID: 31199155 DOI: 10.1021/acs.orglett.9b01649] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Metal-free regioselective hydration of o-alkynylaldehydes with the assistance of neighboring carbonyl oxygen is disclosed. The developed protocol provides a facile route to synthesize a series of multisubstituted carbonyl containing scaffolds that enable the potential application toward the synthesis of highly diversified 5-azaindoles. γ-Carbolines and 2,8-diazacarbazoles can also be accessed directly without isolating the dicarbonyl compounds. The developed methodology is operationally simple and environment-friendly, tolerates a wide variety of functional groups, and is applicable toward large scale synthesis.
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Affiliation(s)
- Shalini Verma
- Department of Chemistry , University of Delhi , Delhi 110007 , India
| | - Manoj Kumar
- Department of Chemistry , University of Delhi , Delhi 110007 , India
| | - Pawan K Mishra
- Department of Chemistry , University of Delhi , Delhi 110007 , India
| | - Akhilesh K Verma
- Department of Chemistry , University of Delhi , Delhi 110007 , India
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16
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Wang Z, Xue F, Hayashi T. Synthesis of Arylacetaldehydes by Iridium‐Catalyzed Arylation of Vinylene Carbonate with Arylboronic Acids. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Zhe Wang
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Fei Xue
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Tamio Hayashi
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
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17
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Sun W, Netzer WJ, Sinha A, Gindinova K, Chang E, Sinha SC. Development of Gleevec Analogues for Reducing Production of β-Amyloid Peptides through Shifting β-Cleavage of Amyloid Precursor Proteins. J Med Chem 2019; 62:3122-3134. [DOI: 10.1021/acs.jmedchem.8b02007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weilin Sun
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, New York 10065, United States
| | - William J. Netzer
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, New York 10065, United States
| | - Anjana Sinha
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, New York 10065, United States
| | - Katherina Gindinova
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, New York 10065, United States
| | - Emily Chang
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, New York 10065, United States
| | - Subhash C. Sinha
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, New York 10065, United States
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18
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Santos AS, Mortinho AC, Marques MMB. Metal-Catalyzed Cross-Coupling Reactions on Azaindole Synthesis and Functionalization. Molecules 2018; 23:molecules23102673. [PMID: 30336623 PMCID: PMC6222529 DOI: 10.3390/molecules23102673] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/11/2018] [Accepted: 10/13/2018] [Indexed: 11/17/2022] Open
Abstract
Azaindoles are rare in nature but extremely attractive for drug discovery programs. Azaindoles can be obtained by diverse methods, including those involving metal-catalyzed reactions. This important core has been fascinating the scientific community due to their challenging synthesis and relevant bioactivity. This paper highlights the diverse synthetic methodologies developed to date involving metal-catalyzed reaction to attain azaindoles and its functionalization.
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Affiliation(s)
- A Sofia Santos
- LAQV@REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal.
| | - Ana C Mortinho
- LAQV@REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal.
| | - M Manuel B Marques
- LAQV@REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal.
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19
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20
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Kakiuchi F, Takano S, Kochi T. Catalytic Reactions of Terminal Alkynes Using Rhodium(I) Complexes Bearing 8-Quinolinolate Ligands. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01286] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fumitoshi Kakiuchi
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Shotaro Takano
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Takuya Kochi
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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21
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Lemmerer M, Teskey CJ, Kaiser D, Maulide N. Regioselective synthesis of pyridines by redox alkylation of pyridine N-oxides with malonates. MONATSHEFTE FUR CHEMIE 2017; 149:715-719. [PMID: 29681655 PMCID: PMC5906502 DOI: 10.1007/s00706-017-2081-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 10/16/2017] [Indexed: 10/25/2022]
Abstract
ABSTRACT A regioselective synthesis of pyridines by the addition of malonate anions to pyridine N-oxide derivatives, which have been activated by trifluoromethanesulfonic anhydride, is reported. The reaction selectively affords either 2- or 4-substituted pyridines in good yields. GRAPHICAL ABSTRACT
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Affiliation(s)
- Miran Lemmerer
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Christopher J. Teskey
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Daniel Kaiser
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
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22
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Bultman MS, Fan J, Fanfair D, Soltani M, Simpson J, Murugesan S, Soumeillant M, Chen K, Risatti C, La Cruz TE, Buono FG, Hung V, Schild RL, Ivy S, Sweeney JT, Conlon DA, Eastgate MD. Preparation of the HIV Attachment Inhibitor BMS-663068. Part 4. Synthesis of the 6-Azaindole Core. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00152] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael S. Bultman
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Junying Fan
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Dayne Fanfair
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Michelle Soltani
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - James Simpson
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Saravanababu Murugesan
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Maxime Soumeillant
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Ke Chen
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Christina Risatti
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Thomas E. La Cruz
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Frederic G. Buono
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Victor Hung
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Richard L. Schild
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Sabrina Ivy
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Jason T. Sweeney
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - David A. Conlon
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Martin D. Eastgate
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
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23
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Chen K, Risatti C, Simpson J, Soumeillant M, Soltani M, Bultman M, Zheng B, Mudryk B, Tripp JC, La Cruz TE, Hsiao Y, Conlon DA, Eastgate MD. Preparation of the HIV Attachment Inhibitor BMS-663068. Part 2. Strategic Selections in the Transition from an Enabling Route to a Commercial Synthesis. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ke Chen
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Christina Risatti
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - James Simpson
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Maxime Soumeillant
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Michelle Soltani
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Michael Bultman
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Bin Zheng
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Boguslaw Mudryk
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Jonathan C. Tripp
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Thomas E. La Cruz
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Yi Hsiao
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - David A. Conlon
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Martin D. Eastgate
- Chemical & Synthetic Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
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24
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Toure M, Jaime-Figueroa S, Burslem GM, Crews CM. Expeditious Synthesis of Isoquinolones and Isocoumarins with a Vinyl Borane as an Acetylene Equivalent. European J Org Chem 2016; 2016:4171-4175. [PMID: 28781577 PMCID: PMC5542060 DOI: 10.1002/ejoc.201600575] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Indexed: 11/11/2022]
Abstract
An innovative and simple expeditious synthesis of 3,4-unsubstituted isoquinolones and isocoumarins starting from safe and easy to handle two-carbon acetylene equivalent was developed. The synthetic potential of this new method was further demonstrated in the facile total synthesis of two naturally occurring alkaloids: corydaldine and doryanine.
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Affiliation(s)
- Momar Toure
- Departments of Chemistry; Molecular, Cellular & Developmental Biology; Pharmacology, Yale University, New Haven, Connecticut 06511, United States
| | - Saul Jaime-Figueroa
- Departments of Chemistry; Molecular, Cellular & Developmental Biology; Pharmacology, Yale University, New Haven, Connecticut 06511, United States
| | - George M Burslem
- Departments of Chemistry; Molecular, Cellular & Developmental Biology; Pharmacology, Yale University, New Haven, Connecticut 06511, United States
| | - Craig M Crews
- Departments of Chemistry; Molecular, Cellular & Developmental Biology; Pharmacology, Yale University, New Haven, Connecticut 06511, United States
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25
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Nugent J, Banwell MG, Schwartz BD. Total Synthesis of the Illicium-Derived Sesquineolignan Simonsol C. Org Lett 2016; 18:3798-801. [DOI: 10.1021/acs.orglett.6b01799] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeremy Nugent
- Research
School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601, Australia
| | - Martin G. Banwell
- Research
School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601, Australia
| | - Brett D. Schwartz
- Research
School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601, Australia
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26
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Pires MJD, Poeira DL, Purificação SI, Marques MMB. Synthesis of Substituted 4-, 5-, 6-, and 7-Azaindoles from Aminopyridines via a Cascade C–N Cross-Coupling/Heck Reaction. Org Lett 2016; 18:3250-3. [DOI: 10.1021/acs.orglett.6b01500] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marina J. D. Pires
- LAQV@REQUIMTE, Departamento
de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Diogo L. Poeira
- LAQV@REQUIMTE, Departamento
de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Sara I. Purificação
- LAQV@REQUIMTE, Departamento
de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - M. Manuel B. Marques
- LAQV@REQUIMTE, Departamento
de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
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27
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Li KX, Wang XJ. 4,4,5,5-Tetramethyl-2-[( Z)-1-(3-methylphenoxy)hex-1-en-2-yl]-1,3,2-dioxaborolane. IUCRDATA 2016. [DOI: 10.1107/s2414314616006118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The title compound, C19H29BO3, was prepared by the reaction of 1-(hex-1-yn-1-yloxy)-3-methylbenzene in tetrahydrofuran with 4,4,5,5-tetramethyl-1,3,2-dioxaborolane under a nitrogen atmosphere. In the molecule, the butyl group adopts an extended conformation, with a torsion angle of 179.52 (19)°. The dioxaborolane ring has a twisted conformation on the C—C bond, and its mean plane is inclined to the 3-methylphenyl ring by 44.79 (19)°. In the crystal, there are no significant intermolecular interactions present.
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28
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Pham NN, Dang TT, Ngo NT, Villinger A, Ehlers P, Langer P. Facile synthesis of 4- and 7-azaindoles from the corresponding imines by palladium-catalyzed cascade C-C and C-N coupling. Org Biomol Chem 2016; 13:6047-58. [PMID: 25947884 DOI: 10.1039/c5ob00720h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The cyclization of 2,3-dihalopyridines with readily available imines provides a convenient and regioselective approach to 4- and 7-azaindoles. The regioselectivity can be controlled by the choice of the halogen atoms at the pyridine ring (chlorine versus bromine).
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Affiliation(s)
- Ngo Nghia Pham
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.
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29
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Mifleur A, Ledru H, Lopes A, Suisse I, Mortreux A, Sauthier M. Synthesis of Short-Chain Alkenyl Ethers from Primary and Bio-sourced Alcohols via the Nickel-Catalyzed Hydroalkoxylation Reaction of Butadiene and Derivatives. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500721] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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30
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Dias Pires MJ, Poeira DL, Marques MMB. Metal-Catalyzed Cross-Coupling Reactions of Aminopyridines. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500952] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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31
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Innocenti P, Woodward H, O'Fee L, Hoelder S. Expanding the scope of fused pyrimidines as kinase inhibitor scaffolds: synthesis and modification of pyrido[3,4-d]pyrimidines. Org Biomol Chem 2015; 13:893-904. [PMID: 25407826 DOI: 10.1039/c4ob02238f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fused pyrimidine cores are privileged kinase scaffolds, yet few examples of the 2-amino-pyrido[3,4-d]pyrimidine chemotype have been disclosed in the context of kinase inhibitor programs. Furthermore, no general synthetic route has been reported to access 2-amino-pyrido[3,4-d]pyrimidine derivatives. Here we report a versatile and efficient chemical approach to this class of molecules. Our strategy involves the concise preparation of 8-chloro-2-(methylthio)pyrido[3,4-d]pyrimidine intermediates and their efficient derivatisation to give novel compounds with potential as kinase inhibitors.
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Affiliation(s)
- Paolo Innocenti
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Belmont, Surrey, SM2 5NG, UK.
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32
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Sun P, Wu Y, Yang T, Wu X, Xu J, Lin A, Yao H. Synthesis of Heterocycle-fused PyridineN-Oxides from Oximes and Diazo CompoundsviaRhIII-Catalyzed CH Activation and Annulation. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500125] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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33
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34
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Lin R, Lee KH, Poon KC, Sung HHY, Williams ID, Lin Z, Jia G. Synthesis of Rhenabenzenes from the Reactions of Rhenacyclobutadienes with Ethoxyethyne. Chemistry 2014; 20:14885-99. [DOI: 10.1002/chem.201403186] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Indexed: 01/28/2023]
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35
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Chen K, Risatti C, Bultman M, Soumeillant M, Simpson J, Zheng B, Fanfair D, Mahoney M, Mudryk B, Fox RJ, Hsaio Y, Murugesan S, Conlon DA, Buono FG, Eastgate MD. Synthesis of the 6-Azaindole Containing HIV-1 Attachment Inhibitor Pro-Drug, BMS-663068. J Org Chem 2014; 79:8757-67. [DOI: 10.1021/jo5016008] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ke Chen
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Christina Risatti
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Michael Bultman
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Maxime Soumeillant
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - James Simpson
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Bin Zheng
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Dayne Fanfair
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Michelle Mahoney
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Boguslaw Mudryk
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Richard J. Fox
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Yi Hsaio
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Saravanababu Murugesan
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - David A. Conlon
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Frederic G. Buono
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Martin D. Eastgate
- Chemical Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
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36
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37
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Metal Catalyzed Cross-Coupling Reactions in the Decoration of Pyrimidine, Pyridazine, and Pyrazine. TOPICS IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1007/7081_2014_138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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38
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Bursavich MG, Dastrup D, Shenderovich M, Yager KM, Cimbora DM, Williams B, Kumar DV. Novel Mps1 kinase inhibitors: From purine to pyrrolopyrimidine and quinazoline leads. Bioorg Med Chem Lett 2013; 23:6829-33. [DOI: 10.1016/j.bmcl.2013.10.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 09/30/2013] [Accepted: 10/04/2013] [Indexed: 01/28/2023]
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39
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Hoshi T, Honma T, Mori A, Konishi M, Sato T, Hagiwara H, Suzuki T. An Active, General, and Long-Lived Palladium Catalyst for Cross-Couplings of Deactivated (Hetero)aryl Chlorides and Bromides with Arylboronic Acids. J Org Chem 2013; 78:11513-24. [DOI: 10.1021/jo402089r] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Takashi Hoshi
- Department of Chemistry and
Chemical Engineering, Niigata University, 8050, 2-Nocho, Ikarashi, Nishi-ku, Niigata 950-2181, Japan
| | - Tomonobu Honma
- Department of Chemistry and
Chemical Engineering, Niigata University, 8050, 2-Nocho, Ikarashi, Nishi-ku, Niigata 950-2181, Japan
| | - Ayako Mori
- Department of Chemistry and
Chemical Engineering, Niigata University, 8050, 2-Nocho, Ikarashi, Nishi-ku, Niigata 950-2181, Japan
| | - Maki Konishi
- Department of Chemistry and
Chemical Engineering, Niigata University, 8050, 2-Nocho, Ikarashi, Nishi-ku, Niigata 950-2181, Japan
| | - Tsutomu Sato
- Department of Chemistry and
Chemical Engineering, Niigata University, 8050, 2-Nocho, Ikarashi, Nishi-ku, Niigata 950-2181, Japan
| | - Hisahiro Hagiwara
- Department of Chemistry and
Chemical Engineering, Niigata University, 8050, 2-Nocho, Ikarashi, Nishi-ku, Niigata 950-2181, Japan
| | - Toshio Suzuki
- Department of Chemistry and
Chemical Engineering, Niigata University, 8050, 2-Nocho, Ikarashi, Nishi-ku, Niigata 950-2181, Japan
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40
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Cui W, Mao M, He Z, Zhu G. Regioselective and Stereoselective Entry to β,β-Disubstituted Vinyl Ethers via the Sequential Hydroboration/Suzuki–Miyaura Coupling of Ynol Ethers. J Org Chem 2013; 78:9815-21. [PMID: 24007364 DOI: 10.1021/jo401523m] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Weijian Cui
- Department
of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, China
| | - Mengyi Mao
- Department
of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, China
| | - Zuying He
- Department
of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, China
| | - Gangguo Zhu
- Department
of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, China
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41
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42
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Lee H, Kim JH, Lee WK, Jung JH, Ha HJ. Synthesis of 2,5-Disubstituted 6-Azaindoles from Substituted Aziridines via Intramolecular Cyclization. Org Lett 2012; 14:3120-2. [DOI: 10.1021/ol301187s] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hogyu Lee
- Department of Chemistry, Sogang University, Seoul 121-742, Korea, and Department of Chemistry, Hankuk University of Foreign Studies, Yongin 449-791, Korea
| | - Jun Hee Kim
- Department of Chemistry, Sogang University, Seoul 121-742, Korea, and Department of Chemistry, Hankuk University of Foreign Studies, Yongin 449-791, Korea
| | - Won Koo Lee
- Department of Chemistry, Sogang University, Seoul 121-742, Korea, and Department of Chemistry, Hankuk University of Foreign Studies, Yongin 449-791, Korea
| | - Jae-Hoon Jung
- Department of Chemistry, Sogang University, Seoul 121-742, Korea, and Department of Chemistry, Hankuk University of Foreign Studies, Yongin 449-791, Korea
| | - Hyun-Joon Ha
- Department of Chemistry, Sogang University, Seoul 121-742, Korea, and Department of Chemistry, Hankuk University of Foreign Studies, Yongin 449-791, Korea
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43
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Livecchi M, Calvet G, Schmidt F. Palladium-catalyzed synthesis of 2,3-disubstituted 5-azaindoles via heteroannulation reaction and of 2-substituted 5-azaindoles through domino sila-Sonogashira/5-endo cyclization. J Org Chem 2012; 77:5006-16. [PMID: 22587741 DOI: 10.1021/jo300481s] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A general and efficient procedure for the synthesis of 2,3-disubstituted 5-azaindoles through the palladium-catalyzed heteroannulation of 4-acetamido-3-iodopyridines and diaryl-, dialkyl-, or arylalkylalkynes is described along with a study of the reaction regioselectivity. The preparation of 2-monosubstituted 5-azaindoles via sila-Sonogashira/5-endo cyclization is also reported. These methods allowed us to prepare 36 diversely substituted 5-azaindoles in good yields.
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Affiliation(s)
- Marion Livecchi
- Institut Curie, Centre de Recherche, 26 rue d'Ulm, Paris F-75248, France
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44
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Crestey F, Hooyberghs G, Kristensen JL. Concise synthesis of new bridged-nicotine analogues. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.12.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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45
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46
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Z. Zard S, Bacqué E, El Qacémi M. A Flexible Convergent Route to Azaoxindoles, Azaindolines, Azaindoles, and Tetrahydroazaquinolones. HETEROCYCLES 2012. [DOI: 10.3987/com-11-s(p)24] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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47
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Platon M, Amardeil R, Djakovitch L, Hierso JC. Progress in palladium-based catalytic systems for the sustainable synthesis of annulated heterocycles: a focus on indole backbones. Chem Soc Rev 2012; 41:3929-68. [DOI: 10.1039/c2cs15350e] [Citation(s) in RCA: 299] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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48
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Jochmann P, Leich V, Spaniol TP, Okuda J. Calcium-Mediated Dearomatization, CH Bond Activation, and Allylation of Alkylated and Benzannulated Pyridine Derivatives. Chemistry 2011; 17:12115-22. [DOI: 10.1002/chem.201101489] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Indexed: 11/08/2022]
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49
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Shumaila AM, Puranik VG, Kusurkar RS. Synthesis of tetrahydro-5-azaindoles and 5-azaindoles using Pictet–Spengler reaction—appreciable difference in products using different acid catalysts. Tetrahedron 2011. [DOI: 10.1016/j.tet.2010.12.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Russel JS, Pelkey ET, Greger JG. Five-Membered Ring Systems. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/b978-0-08-096805-6.00006-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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