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Boutahri Y, Ben Haj Salah K, Tisserand N, Lensen N, Crousse B, Brigaud T. Difluoroalanine: Synthesis, Incorporation in Peptides, and Hydrophobic Contribution Assessment. Org Lett 2023; 25:6937-6941. [PMID: 37695729 DOI: 10.1021/acs.orglett.3c02853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
The straightforward synthesis of chiral (R)- and (S)-difluoroalanine is reported. The key step is a Strecker-type reaction followed by hydrogenolysis, Fmoc protection, and acidic hydrolysis. Peptide coupling reactions at its N- and C-terminal positions provide diastereomerically pure tripeptides. On the basis of hydrophobicity index measurements, the hydrophobic contribution of difluoroalanine in a peptide chain was found to be similar to that of isoleucine for a smaller van der Waals volume of the side chain.
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Affiliation(s)
- Yazid Boutahri
- CY Cergy Paris Université, CNRS, BioCIS UMR 8076, 95000 Cergy-Pontoise, France
- Université Paris-Saclay, CNRS, BioCIS UMR 8076, 91400 Orsay, France
| | - Khoubaib Ben Haj Salah
- CY Cergy Paris Université, CNRS, BioCIS UMR 8076, 95000 Cergy-Pontoise, France
- Université Paris-Saclay, CNRS, BioCIS UMR 8076, 91400 Orsay, France
| | | | - Nathalie Lensen
- CY Cergy Paris Université, CNRS, BioCIS UMR 8076, 95000 Cergy-Pontoise, France
- Université Paris-Saclay, CNRS, BioCIS UMR 8076, 91400 Orsay, France
| | - Benoît Crousse
- Université Paris-Saclay, CNRS, BioCIS UMR 8076, 91400 Orsay, France
| | - Thierry Brigaud
- CY Cergy Paris Université, CNRS, BioCIS UMR 8076, 95000 Cergy-Pontoise, France
- Université Paris-Saclay, CNRS, BioCIS UMR 8076, 91400 Orsay, France
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Bayat M, Gheidari D. Green Lewis Acid Catalysis in Organic Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mohammad Bayat
- Department of Chemistry Faculty of Science Imam Khomeini International University Qazvin
| | - Davood Gheidari
- Department of Chemistry Faculty of Science University of Guilan Rasht Iran
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Candeias NR, Branco LC, Gois PMP, Afonso CAM, Trindade AF. More Sustainable Approaches for the Synthesis of N-Based Heterocycles. Chem Rev 2009; 109:2703-802. [DOI: 10.1021/cr800462w] [Citation(s) in RCA: 292] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nuno R. Candeias
- Centro de Química-Física Molecular (CQFM) and Institute of Nanosciences and Nanotechnology (IN), Departamento de Engenharia Química e Biológica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal, and iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Luís C. Branco
- Centro de Química-Física Molecular (CQFM) and Institute of Nanosciences and Nanotechnology (IN), Departamento de Engenharia Química e Biológica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal, and iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Pedro M. P. Gois
- Centro de Química-Física Molecular (CQFM) and Institute of Nanosciences and Nanotechnology (IN), Departamento de Engenharia Química e Biológica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal, and iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Carlos A. M. Afonso
- Centro de Química-Física Molecular (CQFM) and Institute of Nanosciences and Nanotechnology (IN), Departamento de Engenharia Química e Biológica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal, and iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Alexandre F. Trindade
- Centro de Química-Física Molecular (CQFM) and Institute of Nanosciences and Nanotechnology (IN), Departamento de Engenharia Química e Biológica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal, and iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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McCall WS, Grillo TA, Comins DL. N-acyldihydropyridones as synthetic intermediates. A stereoselective synthesis of acyclic amino alcohols containing multiple chiral centers. J Org Chem 2008; 73:9744-51. [PMID: 19007132 DOI: 10.1021/jo802029y] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Various multisubstituted piperidines containing a phenyl group at C-2 can be opened regio- and stereoselectively with cyanogen bromide. The ring-opened products contain useful cyanamide and benzylic bromide functional groups. The benzyl bromide can be cleanly reduced, or substituted with various nucleophiles via an S(N)2 process to add additional heteroatoms stereoselectively. This methodology is useful for the stereoselective synthesis of uniquely substituted alkylamine derivatives containing multiple chiral centers and various functionality. Diastereomerically pure amino alcohols containing three to five contiguous stereocenters were prepared using this strategy.
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Affiliation(s)
- W Stephen McCall
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA
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Sukach VA, Golovach NM, Pirozhenko VV, Rusanov EB, Vovk MV. Convenient enantioselective synthesis of β-trifluoromethyl-β-aminoketones by organocatalytic asymmetric Mannich reaction of aryl trifluoromethyl ketimines with acetone. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.02.023] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Plantier-Royon R, Portella C. C-Difluoromethylene-containing, C-trifluoromethyl and C-perfluoroalkyl carbohydrates. Synthesis by carbohydrate transformation or building block methods. Carbohydr Res 2000; 327:119-46. [PMID: 10968679 DOI: 10.1016/s0008-6215(00)00034-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The synthetic methods for preparing carbohydrates bearing a C-branched substituent of the type CF2-Y, with Y = F, Y = CnF(2n + 1) or Y = a carbon-attached or heteroatom-attached nonfluorinated residues, are reviewed. Both direct introduction of C-branched fluorinated substituents (direct trifluoromethylation, perfluoroalkylation or difluoromethylenation) and building block methods from fluorinated synthons are considered.
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Affiliation(s)
- R Plantier-Royon
- Laboratoire Réactions Sélectives et Applications, Associé au CNRS (UMR 6519), Université de Reims, Facult des Sciences, France
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Juaristi E, León-Romo JL, Reyes A, Escalante J. Recent applications of α-phenylethylamine (α-PEA) in the preparation of enantiopure compounds. Part 3: α-PEA as chiral auxiliary. Part 4: α-PEA as chiral reagent in the stereodifferentiation of prochiral substrates. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0957-4166(99)00242-6] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Szarek MA, Wu X, Szarek WA. Synthesis and evaluation of 1,5,6-trideoxy-6,6-difluoro-1,5-imino-d-glucitol (1,6-dideoxy-6,6-difluoronojirimycin) as a glucosidase inhibitor. Carbohydr Res 1997. [DOI: 10.1016/s0008-6215(97)00341-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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