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Malykhin RS, Sukhorukov AY. Nucleophilic Halogenation of Heterocyclic
N
‐Oxides: Recent Progress and a Practical Guide. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100284] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Roman S. Malykhin
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky prospect, 47 Moscow 119991 Russia
- M. V. Lomonosov Moscow State University Department of Chemistry Leninskie gory, 1, str. 3 Moscow 119991 Russian Federation
| | - Alexey Yu. Sukhorukov
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky prospect, 47 Moscow 119991 Russia
- Plekhanov Russian University of Economics Stremyanny per. 36 Moscow 117997 Russia
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Chen Y, Huang J, Hwang TL, Chen MJ, Tedrow JS, Farrell RP, Bio MM, Cui S. Highly Regioselective Halogenation of Pyridine N-Oxide: Practical Access to 2-Halo-Substituted Pyridines. Org Lett 2015; 17:2948-51. [DOI: 10.1021/acs.orglett.5b01057] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ying Chen
- Drug Substance Technologies, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Jinkun Huang
- Drug Substance Technologies, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Tsang-Lin Hwang
- Drug Substance Technologies, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Maosheng J. Chen
- Drug Substance Technologies, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Jason S. Tedrow
- Drug Substance Technologies, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Robert P. Farrell
- Drug Substance Technologies, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Matthew M. Bio
- Drug Substance Technologies, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Sheng Cui
- Drug Substance Technologies, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
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4
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Strekowski L, Zhang J, Sączewski J, Wolińska E. Synthesis of quinolines and acridines by the reaction of 2-(perfluoroalkyl)anilines with lithium and Grignard reagents. HETEROCYCL COMMUN 2015. [DOI: 10.1515/hc-2015-0074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThis review summarizes the synthesis of quinolines and acridines by the reactions of anionically activated 2-(perfluoroalkyl)anilines. Mechanistic studies including isolation of the intermediate aza-ortho-xylylene are discussed.
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Affiliation(s)
- Lucjan Strekowski
- 1Department of Chemistry, Georgia State University, Atlanta, GA 30302, USA
| | - Jianguo Zhang
- 2Department of Biochemistry and Molecular Biology, The University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA
| | - Jarosław Sączewski
- 3Department of Chemical Technology of Drugs, Medical University of Gdańsk, 80-416 Gdańsk, Poland
| | - Ewa Wolińska
- 4Department of Organic Chemistry, University of Podlasie, 08-110 Siedlce, Poland
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Griebenow N, Schirok H, Mittendorf J, Straub A, Follmann M, Stasch JP, Knorr A, Schlemmer KH, Redlich G. Identification of acidic heterocycle-substituted 1H-pyrazolo[3,4-b]pyridines as soluble guanylate cyclase stimulators. Bioorg Med Chem Lett 2013; 23:1197-200. [DOI: 10.1016/j.bmcl.2013.01.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 01/04/2013] [Accepted: 01/07/2013] [Indexed: 10/27/2022]
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Lechel T, Dash J, Hommes P, Lentz D, Reissig HU. Three-Component Synthesis of Perfluoroalkyl- or Perfluoroaryl-Substituted 4-Hydroxypyridine Derivatives and Their Palladium-Catalyzed Coupling Reactions. J Org Chem 2009; 75:726-32. [PMID: 20030386 DOI: 10.1021/jo9022183] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tilman Lechel
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Jyotirmayee Dash
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
- Indian Institute of Science, Education and Research Kolkata, Mohanpur Campus, Mohanpur 741252, Nadia, West Bengal, India
| | - Paul Hommes
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Dieter Lentz
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Hans-Ulrich Reissig
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
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Schirok H, Paulsen H, Kroh W, Chen G, Gao P. Improved Synthesis of the Selective Rho-Kinase Inhibitor 6-Chloro-N4-{3,5-difluoro-4-[(3-methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)oxy]phenyl}pyrimidin-2,4-diamine. Org Process Res Dev 2009. [DOI: 10.1021/op900260k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hartmut Schirok
- Bayer Schering Pharma AG, Medicinal Chemistry Wuppertal, 42096 Wuppertal, Germany, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, China
| | - Holger Paulsen
- Bayer Schering Pharma AG, Medicinal Chemistry Wuppertal, 42096 Wuppertal, Germany, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, China
| | - Walter Kroh
- Bayer Schering Pharma AG, Medicinal Chemistry Wuppertal, 42096 Wuppertal, Germany, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, China
| | - Gang Chen
- Bayer Schering Pharma AG, Medicinal Chemistry Wuppertal, 42096 Wuppertal, Germany, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, China
| | - Ping Gao
- Bayer Schering Pharma AG, Medicinal Chemistry Wuppertal, 42096 Wuppertal, Germany, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, China
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Schirok H, Kast R, Figueroa-Pérez S, Bennabi S, Gnoth M, Feurer A, Heckroth H, Thutewohl M, Paulsen H, Knorr A, Hütter J, Lobell M, Münter K, Geiß V, Ehmke H, Lang D, Radtke M, Mittendorf J, Stasch JP. Design and Synthesis of Potent and Selective Azaindole-Based Rho Kinase (ROCK) Inhibitors. ChemMedChem 2008; 3:1893-904. [DOI: 10.1002/cmdc.200800211] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Mahiout Z, Lomberget T, Goncalves S, Barret R. Solvent-dependent oxidations of 5- and 6-azaindoles to trioxopyrrolopyridines and functionalised azaindoles. Org Biomol Chem 2008; 6:1364-76. [PMID: 18385843 DOI: 10.1039/b719776d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A regioselective synthesis of 4,7-dimethoxy 5- and 6-azaindoles 2 has been achieved, based on the appropriate choice of ortho-directing or ortho-repulsing groups in the formylation of a pyridine ring. Studies on the regioselectivity of the formylation step and on the preparation of azidoacrylate intermediates 4 are described in this paper. The reactivity of the 5- and 6-azaindole structures towards BBr3-mediated selective monodemethylation and oxidative demethylation reactions were also investigated. The regioselectivity of the deprotection was confirmed using a chemical approach. Oxidation reactions were then carried out on either dimethoxy- or hydroxymethoxyazaindoles, in different solvents, using [bis(trifluoroacetoxy)iodo]benzene. In acetonitrile-water, trioxopyrrolopyridines 12 were obtained, whereas the formation of functionalised azaindoles 17 was observed in acetonitrile-methanol. The tautomeric structure of the trioxopyrrolopyridines was proved by X-ray diffraction analysis.
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Affiliation(s)
- Zahia Mahiout
- Laboratoire de Chimie Thérapeutique, Université de Lyon, Lyon, F-69003, France
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Kobayashi K, Fujita S, Fukamachi S, Konishi H. Synthesis of 1-Aryl-1H-pyrrolo[2,3-b]pyridines (1-Aryl-7-azaindoles) by a Thermal Dehydration-Cyclization-Dehydrogenation Sequence of 2-Arylamino-3-(1-hydroxyalkyl)pyridines. HETEROCYCLES 2008. [DOI: 10.3987/com-08-11441] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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