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McGrory R, Clarke R, Marshall O, Sutherland A. Fluorescent α-amino acids via Heck-Matsuda reactions of phenylalanine-derived arenediazonium salts. Org Biomol Chem 2023; 21:6932-6939. [PMID: 37580965 DOI: 10.1039/d3ob01096a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
The Heck-Matsuda coupling reaction of arenediazonium salts derived from L-phenylalanine with various alkenes has been developed. A two-step process involving the preparation of a tetrafluoroborate diazonium salt from a 4-aminophenylalanine derivative, followed by a palladium(0)-catalysed Heck-Matsuda coupling reaction allowed access to a range of unnatural α-amino acids with cinnamate, vinylsulfone and stilbene side-chains. Analysis of the photophysical properties of these unnatural α-amino acids demonstrated that the (E)-stilbene analogues exhibited fluorescent properties with red-shifted absorption and emission spectra and larger quantum yields than L-phenylalanine.
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Affiliation(s)
- Rochelle McGrory
- School of Chemistry, University of Glasgow, The Joseph Black Building, Glasgow, G12 8QQ, UK.
| | - Rebecca Clarke
- School of Chemistry, University of Glasgow, The Joseph Black Building, Glasgow, G12 8QQ, UK.
| | - Olivia Marshall
- School of Chemistry, University of Glasgow, The Joseph Black Building, Glasgow, G12 8QQ, UK.
| | - Andrew Sutherland
- School of Chemistry, University of Glasgow, The Joseph Black Building, Glasgow, G12 8QQ, UK.
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Chen S, Liu Z, Shi E, Chen L, Wei W, Li H, Cheng Y, Wan X. Ruthenium-Catalyzed Oxidation of Alkenes at Room Temperature: A Practical and Concise Approach to α-Diketones. Org Lett 2011; 13:2274-7. [DOI: 10.1021/ol200716d] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shulin Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhaojun Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Erbo Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Long Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wei Wei
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hong Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yannan Cheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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Sundaramoorthi R, Siedem C, Vu CB, Dalgarno DC, Laird EC, Botfield MC, Combs AB, Adams SE, Yuan RW, Weigele M, Narula SS. Selective inhibition of Src SH2 by a novel thiol-targeting tricarbonyl-modified inhibitor and mechanistic analysis by (1)H/(13)C NMR spectroscopy. Bioorg Med Chem Lett 2001; 11:1665-9. [PMID: 11425533 DOI: 10.1016/s0960-894x(01)00269-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Detailed analysis of Src SH2 binding by peptides containing a novel tricarbonyl-modified pTyr moiety is described. We envisaged that Src SH2 selectivity might be obtained by exploiting the thiol group of Cys188 present in the pTyr binding pocket of the protein at the betaC3 position. Peptidyl as well as non-peptidyl compounds 1-4 possessing a 4-alpha,beta-diketoester-modified pTyr mimic exhibited micromolar affinity to Src SH2. Furthermore, these tricarbonyl compounds were selective for Src SH2 to the extent they showed no significant affinity for either Cys188Ser or Cys188Ala Src SH2 mutants. Upon closer examination of the binding of these tricarbonyls to Src SH2 using NMR of 13C-labeled compounds (6a, 6b, and 6c), we found that after the initial binding event the molecule disproportionated in a 'retro-Claisen' fashion to provide benzoic acid 16 and, following hydrolysis of the methyl ester 17, the hemiketal adduct of glyoxalic acid 18.
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Affiliation(s)
- R Sundaramoorthi
- ARIAD Pharmaceuticals, Inc., 26 Landsdowne Street, 02139, Cambridge, MA, USA.
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Evans DB, Traxler P, García-Echeverría C. Molecular approaches to receptors as targets for drug discovery. EXS 2001; 89:123-39. [PMID: 10997286 DOI: 10.1007/978-3-0348-8393-1_8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Many receptors have been selected as viable drug discovery targets. One particular class of receptors that have received much interest and so far relatively good success are the receptor protein tyrosine kinases (RPTKs). Typically, RPTKs are activated following the binding of the peptide growth factor ligand to its receptor. The RPTKs play crucial roles in signal transduction pathways that regulate a number of cellular functions, such as cell differentiation and proliferation, both under normal physiological conditions as well as in a variety of pathological disorders. A variety of different tumour types have been shown to have dysfunctional RPTKs, either as a result of excess production of the growth factor, the receptor or both, or via mutations in the RPTKs structure. Irrespective of the cause, this leads to the over-activity of the particular RPTK system and in turn to the aberrant and inappropriate cellular signalling within the tumour cell. RPTKs are attractive targets in the search for therapeutic agents, not only against cancers but also against many other disease indications. Although an ever-increasing number of RPTKs have been selected as viable molecular targets for drug discovery programmes, four examples will be covered in this article. These are the epidermal growth factor receptor (EGF-R), platelet-derived growth factor receptor (PDGF-R), fibroblast growth factor receptor (FGR-R) and vascular endothelial growth factor receptor (VEGF-R), with the main emphasis of interest being on their role in oncology.
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Affiliation(s)
- D B Evans
- Novartis Pharma AG, Basel, Switzerland
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