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Grisez T, Ravi NP, Froeyen M, Schols D, Van Meervelt L, De Jonghe S, Dehaen W. Synthesis of a 3,7-Disubstituted Isothiazolo[4,3- b]pyridine as a Potential Inhibitor of Cyclin G-Associated Kinase. Molecules 2024; 29:954. [PMID: 38474466 DOI: 10.3390/molecules29050954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/07/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Disubstituted isothiazolo[4,3-b]pyridines are known inhibitors of cyclin G-associated kinase. Since 3-substituted-7-aryl-isothiazolo[4,3-b]pyridines remain elusive, a strategy was established to prepare this chemotype, starting from 2,4-dichloro-3-nitropyridine. Selective C-4 arylation using ligand-free Suzuki-Miyaura coupling and palladium-catalyzed aminocarbonylation functioned as key steps in the synthesis. The 3-N-morpholinyl-7-(3,4-dimethoxyphenyl)-isothiazolo[4,3-b]pyridine was completely devoid of GAK affinity, in contrast to its 3,5- and 3,6-disubstituted congeners. Molecular modeling was applied to rationalize its inactivity as a GAK ligand.
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Affiliation(s)
- Tom Grisez
- Department of Chemistry, Sustainable Chemistry for Metals and Molecules, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Nitha Panikkassery Ravi
- Department of Chemistry, Sustainable Chemistry for Metals and Molecules, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Mathy Froeyen
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49, P.O. Box 1041, B-3000 Leuven, Belgium
| | - Dominique Schols
- Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Department of Microbiology, Immunology and Transplantation, KU Leuven, Herestraat 49, P.O. Box 1043, B-3000 Leuven, Belgium
| | - Luc Van Meervelt
- Department of Chemistry, Biomolecular Architecture, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Steven De Jonghe
- Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Department of Microbiology, Immunology and Transplantation, KU Leuven, Herestraat 49, P.O. Box 1043, B-3000 Leuven, Belgium
| | - Wim Dehaen
- Department of Chemistry, Sustainable Chemistry for Metals and Molecules, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
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Zhang J, Huang Y. Potassium tert-Butoxide Facilitated Amination of Carboxylic Acids with N,N-Dimethylformamide. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1817-1965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractHerein a practical and efficient potassium tert-butoxide (KO
t
Bu)-facilitated amination of carboxylic acids with N,N-dimethylamine is described. In the presence of catalytic amount of KO
t
Bu, a variety of aliphatic and aromatic carboxylic acids are transformed to N,N-dimethylamides using DMF as the dimethylamine reagent with the assistance of trimethylacetic anhydride. The applicability of this protocol is demonstrated by late-stage dimethylamidation of complex drug molecules. A plausible reaction mechanism involving KO
t
Bu-facilitated in situ amine generation from formamide decomposition and anhydride-mediated condensation is proposed on the basis of mechanistic investigations.
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Hirata S, Osako T, Uozumi Y. Palladium‐Catalyzed Aminocarbonylation of Aryl Halides with
N
,
N
‐Dialkylformamide Acetals. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shuichi Hirata
- Institute for Molecular Science Myodaiji, Okazaki 444-8787 Japan
| | - Takao Osako
- Institute for Molecular Science Myodaiji, Okazaki 444-8787 Japan
| | - Yasuhiro Uozumi
- Institute for Molecular Science Myodaiji, Okazaki 444-8787 Japan
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Mkrtchyan S, Jakubczyk M, Lanka S, Pittelkow M, Iaroshenko VO. Cu-Catalyzed Arylation of Bromo-Difluoro-Acetamides by Aryl Boronic Acids, Aryl Trialkoxysilanes and Dimethyl-Aryl-Sulfonium Salts: New Entries to Aromatic Amides. Molecules 2021; 26:2957. [PMID: 34065691 PMCID: PMC8156957 DOI: 10.3390/molecules26102957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 11/28/2022] Open
Abstract
We describe a mechanism-guided discovery of a synthetic methodology that enables the preparation of aromatic amides from 2-bromo-2,2-difluoroacetamides utilizing a copper-catalyzed direct arylation. Readily available and structurally simple aryl precursors such as aryl boronic acids, aryl trialkoxysilanes and dimethyl-aryl-sulfonium salts were used as the source for the aryl substituents. The scope of the reactions was tested, and the reactions were insensitive to the electronic nature of the aryl groups, as both electron-rich and electron-deficient aryls were successfully introduced. A wide range of 2-bromo-2,2-difluoroacetamides as either aliphatic or aromatic secondary or tertiary amides were also reactive under the developed conditions. The described synthetic protocols displayed excellent efficiency and were successfully utilized for the expeditious preparation of diverse aromatic amides in good-to-excellent yields. The reactions were scaled up to gram quantities.
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Affiliation(s)
- Satenik Mkrtchyan
- Laboratory of Homogeneous Catalysis and Molecular Design at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łodź, Poland; (M.J.); (S.L.)
| | - Michał Jakubczyk
- Laboratory of Homogeneous Catalysis and Molecular Design at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łodź, Poland; (M.J.); (S.L.)
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland
| | - Suneel Lanka
- Laboratory of Homogeneous Catalysis and Molecular Design at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łodź, Poland; (M.J.); (S.L.)
- Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Michael Pittelkow
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark;
| | - Viktor O. Iaroshenko
- Laboratory of Homogeneous Catalysis and Molecular Design at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łodź, Poland; (M.J.); (S.L.)
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), Italy
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, 00014 Helsinki, Finland
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Li X, Xu J, Li Y, Kramer S, Skrydstrup T, Lian Z. Silylcarboxylic Acids as Bifunctional Reagents: Application in Palladium‐Catalyzed External‐CO‐Free Carbonylative Cross‐Coupling Reactions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000586] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiong Li
- Department of Dermatology State Key Laboratory of Biotherapy and Cancer Center West China Hospital and West China School of Pharmacy Sichuan University Chengdu 610041 People's Republic of China
| | - Jie Xu
- Department of Dermatology State Key Laboratory of Biotherapy and Cancer Center West China Hospital and West China School of Pharmacy Sichuan University Chengdu 610041 People's Republic of China
| | - Yue Li
- Department of Dermatology State Key Laboratory of Biotherapy and Cancer Center West China Hospital and West China School of Pharmacy Sichuan University Chengdu 610041 People's Republic of China
| | - Søren Kramer
- Department of Chemistry Technical University of Denmark 2800 Kgs. Lyngby Denmark
| | - Troels Skrydstrup
- Carbon Dioxide Activation Center Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry Aarhus University Gustav WiedsVej 14 8000 Aarhus C Denmark
| | - Zhong Lian
- Department of Dermatology State Key Laboratory of Biotherapy and Cancer Center West China Hospital and West China School of Pharmacy Sichuan University Chengdu 610041 People's Republic of China
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Wu Z, Cheng C, Tang X, Liu S, Xi G, Zhao M, Liu P. Phosphine‐Promoted Amide Bond Formation Reactions from Carboxylic Acids and Tetraalkylthiuram Disulfides. ChemistrySelect 2018. [DOI: 10.1002/slct.201803311] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Zhiyong Wu
- College of Tobacco ScienceFlavors and Fragrance Engineering & Technology Research Center of Henan ProvinceHenan Agricultural University Zhengzhou 450002, Henan, (P. R. China
| | - Chuance Cheng
- College of Tobacco ScienceFlavors and Fragrance Engineering & Technology Research Center of Henan ProvinceHenan Agricultural University Zhengzhou 450002, Henan, (P. R. China
| | - Xiangting Tang
- College of Tobacco ScienceFlavors and Fragrance Engineering & Technology Research Center of Henan ProvinceHenan Agricultural University Zhengzhou 450002, Henan, (P. R. China
| | - Shi Liu
- College of Tobacco ScienceFlavors and Fragrance Engineering & Technology Research Center of Henan ProvinceHenan Agricultural University Zhengzhou 450002, Henan, (P. R. China
| | - Gaolei Xi
- Technology CenterChina Tobacco Henan Industrial Co., Ltd. Zhengzhou 450000, Henan, (P. R. China
| | - Mingqin Zhao
- College of Tobacco ScienceFlavors and Fragrance Engineering & Technology Research Center of Henan ProvinceHenan Agricultural University Zhengzhou 450002, Henan, (P. R. China
| | - Pengfei Liu
- College of Tobacco ScienceFlavors and Fragrance Engineering & Technology Research Center of Henan ProvinceHenan Agricultural University Zhengzhou 450002, Henan, (P. R. China
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An efficient procedure for chemoselective amidation from carboxylic acid and amine (ammonium salt) under mild conditions. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3229-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Chen C, Liu W, Zhou P. TBHP-mediated highly efficient dehydrogenative cross-oxidative coupling of methylarenes with acetanilides. Beilstein J Org Chem 2017; 12:2250-2255. [PMID: 28144291 PMCID: PMC5238673 DOI: 10.3762/bjoc.12.217] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 10/11/2016] [Indexed: 11/23/2022] Open
Abstract
A TBHP-mediated dehydrogenative cross-oxidative-coupling approach has been developed for the synthesis of N-arylbenzamides from methylarenes and acetanilides. This cross-coupling method is free of transition metal catalysts and ligands, and no extra organic solvents are required, which make it an useful and attractive strategy for the straightforward construction of C–N bonds. Besides, this conversion is an important complement to the conventional C–N forming strategies.
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Affiliation(s)
- Cui Chen
- College of Chemical Engineering, Guangdong University of Petrochemical Technology, 2 Guandu Road, Maoming 525000, P. R. China. ; Tel: +86-668-2923444
| | - Weibing Liu
- College of Chemical Engineering, Guangdong University of Petrochemical Technology, 2 Guandu Road, Maoming 525000, P. R. China. ; Tel: +86-668-2923444
| | - Peng Zhou
- College of Chemical Engineering, Guangdong University of Petrochemical Technology, 2 Guandu Road, Maoming 525000, P. R. China. ; Tel: +86-668-2923444
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