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van der Westhuizen L, Weisner J, Taher A, Landel I, Quambusch L, Lindemann M, Uhlenbrock N, Müller MP, Green IR, Pelly SC, Rauh D, van Otterlo WAL. Covalent allosteric inhibitors of Akt generated using a click fragment approach. ChemMedChem 2022; 17:e202100776. [PMID: 35170857 PMCID: PMC9311865 DOI: 10.1002/cmdc.202100776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/14/2022] [Indexed: 11/30/2022]
Abstract
Akt is a protein kinase that has been implicated in the progression of cancerous tumours. A number of covalent allosteric Akt inhibitors are known, and based on these scaffolds, a small library of novel potential covalent allosteric imidazopyridine‐based inhibitors was designed. The envisaged compounds were synthesised, with click chemistry enabling a modular approach to a number of the target compounds. The binding modes, potencies and antiproliferative activities of these synthesised compounds were explored, thereby furthering the structure activity relationship knowledge of this class of Akt inhibitors. Three novel covalent inhibitors were identified, exhibiting moderate activity against Akt1 and various cancer cell lines, potentially paving the way for future covalent allosteric inhibitors with improved properties.
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Affiliation(s)
| | - Jörn Weisner
- TU Dortmund: Technische Universitat Dortmund, Chemistry and Chemical Biology, GERMANY
| | - Abu Taher
- Stellenbosch University, Chemistry and Polymer Science, SOUTH AFRICA
| | - Ina Landel
- TU Dortmund: Technische Universitat Dortmund, Chemistry and Chemical Biology, GERMANY
| | - Lena Quambusch
- TU Dortmund: Technische Universitat Dortmund, Chemistry and Chemical Biology, GERMANY
| | - Marius Lindemann
- TU Dortmund: Technische Universitat Dortmund, Chemistry and Chemical Biology, GERMANY
| | - Niklas Uhlenbrock
- TU Dortmund: Technische Universitat Dortmund, Chemistry and Chemical Biology, GERMANY
| | - Matthias P Müller
- TU Dortmund: Technische Universitat Dortmund, Chemistry and Chemical Biology, GERMANY
| | - Ivan R Green
- Stellenbosch University, Chemistry and Polymer Science, SOUTH AFRICA
| | | | - Daniel Rauh
- TU Dortmund: Technische Universitat Dortmund, Chemistry and Chemical Biology, GERMANY
| | - Willem A L van Otterlo
- Stellenbosch University, Department of Chemistry and Polymer Sciences, Department of Chemistry and Polyme, Merriman Street, 7602, Stellenbosch, SOUTH AFRICA
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Lu JY. Copper-catalyzed synthesis of 2-aminopyridylbenzoxazoles via domino reactions of intermolecular N-arylation and intramolecular O-arylation. RSC Adv 2019; 9:13414-13417. [PMID: 35519581 PMCID: PMC9063911 DOI: 10.1039/c9ra01908a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 04/25/2019] [Indexed: 11/21/2022] Open
Abstract
A simple and general approach to nitrogen-containing heterocycles via copper-catalyzed domino reaction has been developed, and the corresponding 2-aminopyridylbenzoxazole derivatives were obtained in good to excellent yields using the readily available starting materials. This method possesses unique step economy features, and is of high tolerance towards various functional groups in the substrates.
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Affiliation(s)
- Ju-You Lu
- Laboratory of Green Catalysis and Reaction Engineering of Haikou, Hainan Provincial Fine Chemical Engineering Research Center, School of Chemical Engineering and Technology, Hainan University Haikou 570228 China
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3
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Pribut N, Veale CGL, Basson AE, van Otterlo WAL, Pelly SC. Application of the Huisgen cycloaddition and 'click' reaction toward various 1,2,3-triazoles as HIV non-nucleoside reverse transcriptase inhibitors. Bioorg Med Chem Lett 2016; 26:3700-4. [PMID: 27287366 DOI: 10.1016/j.bmcl.2016.05.082] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 05/23/2016] [Accepted: 05/27/2016] [Indexed: 11/26/2022]
Abstract
The development of novel anti-HIV agents remains an important medicinal chemistry challenge given that no cure for the disease is imminent, and the continued use of current NNRTIs inevitably leads to problems associated with resistance. Inspired by the pyrazole-containing NNRTI lersivirine (LSV), we embarked upon a study to establish whether 1,2,3-triazole heterocycles could be used as a new scaffold for the creation of novel NNRTIs. An especially attractive feature of triazoles used for this purpose is the versatility in accessing variously functionalised systems using either the thermally regulated Huisgen cycloaddition, or the related 'click' reaction. Employing three alternative forms of these reactions, we were able to synthesise a range of triazole compounds and evaluate their efficacy in a phenotypic HIV assay. To our astonishment, even compounds closely mimicking LSV were only moderately effective against HIV.
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Affiliation(s)
- Nicole Pribut
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Clinton G L Veale
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Adriaan E Basson
- AIDS Virus Research Unit, National Institute for Communicable Diseases. Johannesburg, Private Bag X4, Sandringham 2131, Johannesburg, South Africa
| | - Willem A L van Otterlo
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Stephen C Pelly
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa.
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Fandrick DR, Roschangar F, Kim C, Hahm BJ, Cha MH, Kim HY, Yoo G, Kim T, Reeves JT, Song JJ, Tan Z, Qu B, Haddad N, Shen S, Grinberg N, Lee H, Yee N, Senanayake CH. Preparative Synthesis via Continuous Flow of 4,4,5,5-Tetramethyl-2-(3-trimethylsilyl-2-propynyl)-1,3,2-dioxaborolane: A General Propargylation Reagent. Org Process Res Dev 2011. [DOI: 10.1021/op200180t] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel R. Fandrick
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Frank Roschangar
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Chunyoung Kim
- Department of Process R&D Lab, SK Holdings, 140-1 Wonchon-dong, Yuseong-gu, Daejeon 305-712, Korea
| | - Byoung J. Hahm
- Department of Process R&D Lab, SK Holdings, 140-1 Wonchon-dong, Yuseong-gu, Daejeon 305-712, Korea
| | - Myoung H. Cha
- Department of Process R&D Lab, SK Holdings, 140-1 Wonchon-dong, Yuseong-gu, Daejeon 305-712, Korea
| | - Hyoun Y. Kim
- Department of Process R&D Lab, SK Holdings, 140-1 Wonchon-dong, Yuseong-gu, Daejeon 305-712, Korea
| | - Gyesang Yoo
- Department of Process R&D Lab, SK Holdings, 140-1 Wonchon-dong, Yuseong-gu, Daejeon 305-712, Korea
| | - Taeyun Kim
- Department of Process R&D Lab, SK Holdings, 140-1 Wonchon-dong, Yuseong-gu, Daejeon 305-712, Korea
| | - Jonathan T. Reeves
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Jinhua J. Song
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Zhulin Tan
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Bo Qu
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Nizar Haddad
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Sherry Shen
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Nelu Grinberg
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Heewon Lee
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Nathan Yee
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
| | - Chris H. Senanayake
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/PO Box 368, Ridgefield, Connecticut, 06877-0368, United States
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