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Lawer A, Hunter L. Controlling γ‐Peptide Helicity with Stereoselective Fluorination. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Aggie Lawer
- School of Chemistry The University of New South Wales (UNSW) Sydney 2052 Australia
| | - Luke Hunter
- School of Chemistry The University of New South Wales (UNSW) Sydney 2052 Australia
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2
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Zhang X, Lu KZ, Yan HW, Feng ZM, Yang YN, Jiang JS, Zhang PC. An ingenious method for the determination of the relative and absolute configurations of compounds containing aryl-glycerol fragments by 1H NMR spectroscopy. RSC Adv 2021; 11:8107-8116. [PMID: 35423312 PMCID: PMC8695069 DOI: 10.1039/d0ra09712h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/11/2021] [Indexed: 11/21/2022] Open
Abstract
A concise method was established to determine the relative and absolute configurations of aryl-glycerols that depend on the chemical shift differences (Δδ) of the diastereotopic methylene protons (H-3) by 1H NMR spectroscopy. When using DMSO-d 6 as the preferred solvent, the threo configuration corresponded to a larger Δδ H3a-H3b value (>0.15 ppm), whereas the erythro configuration (<0.07 ppm) corresponded to a smaller value. Furthermore, the absolute configurations were determined with the aid of a simple acylation reaction through camphanoyl chloride. In the threo enantiomers, the Δδ value of the 1R,2R configuration was <0.15 ppm, and that of the 1S,2S configuration was >0.20 ppm. In the erythro enantiomers, the Δδ value of 1R,2S was >0.09 ppm, and that of 1S,2R was <0.05 ppm. Remarkably, this empirical rule is invalid in CDCl3. In addition, this method was also verified by a quantum 1H NMR calculation.
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Affiliation(s)
- Xu Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 People's Republic of China
| | - Kai-Zhou Lu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 People's Republic of China
| | - Hai-Wei Yan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 People's Republic of China
| | - Zi-Ming Feng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 People's Republic of China
| | - Ya-Nan Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 People's Republic of China
| | - Jian-Shuang Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 People's Republic of China
| | - Pei-Cheng Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 People's Republic of China
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3
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Brittain WDG, Lloyd CM, Cobb SL. Synthesis of complex unnatural fluorine-containing amino acids. J Fluor Chem 2020; 239:109630. [PMID: 33144742 PMCID: PMC7583769 DOI: 10.1016/j.jfluchem.2020.109630] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 01/01/2023]
Abstract
The area of fluorinated amino acid synthesis has seen rapid growth over the past decade. As reports of singly fluorinated natural amino acid derivatives have grown, researchers have turned their attention to develop methodology to access complex proteinogenic examples. A variety of reaction conditions have been employed in this area, exploiting new advances in the wider synthetic community such as photocatalysis and palladium cross-coupling. In addition, novel fluorinated functional groups have also been incorporated into amino acids, with SFX and perfluoro moieties now appearing with more frequency in the literature. This review focuses on synthetic methodology for accessing complex non-proteinogenic amino acids, along with amino acids containing multiple fluorine atoms such as CF3, SF5 and perfluoroaromatic groups.
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Affiliation(s)
| | - Carissa M Lloyd
- Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
| | - Steven L Cobb
- Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
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Zou LJ, Pan Q, Li CY, Zhang ZT, Zhang XW, Hu XG. Cyanide-Free Synthesis of Glycosyl Carboxylic Acids and Application for the Synthesis of Scleropentaside A. Org Lett 2020; 22:8302-8306. [PMID: 33085488 DOI: 10.1021/acs.orglett.0c02949] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We have developed a cyanide-free strategy for the synthesis of glycosyl carboxylic acids, which can provide 1,2-trans or 1,2-cis glycosyl carboxylic acids and is compatible with common protecting groups. The synthetic utility was demonstrated by the synthesis of 12 unreported glycosyl acids and the total synthesis of scleropentaside A.
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Affiliation(s)
- Liang-Jing Zou
- National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Qiang Pan
- National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Cai-Yi Li
- National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Ze-Ting Zhang
- National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Xiao-Wei Zhang
- National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Xiang-Guo Hu
- National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.,Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
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Kienle M, Eisenring P, Stoessel B, Horlacher OP, Hasler S, van Colen G, Hartkoorn RC, Vocat A, Cole ST, Altmann KH. Synthesis and Structure–Activity Relationship Studies of C2-Modified Analogs of the Antimycobacterial Natural Product Pyridomycin. J Med Chem 2020; 63:1105-1131. [DOI: 10.1021/acs.jmedchem.9b01457] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Maryline Kienle
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zürich, 8093 Zurich, Switzerland
| | - Patrick Eisenring
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zürich, 8093 Zurich, Switzerland
| | - Barbara Stoessel
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zürich, 8093 Zurich, Switzerland
| | - Oliver P. Horlacher
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zürich, 8093 Zurich, Switzerland
| | - Samuel Hasler
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zürich, 8093 Zurich, Switzerland
| | - Gwénaëlle van Colen
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zürich, 8093 Zurich, Switzerland
| | - Ruben C. Hartkoorn
- Global Health Institute, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Anthony Vocat
- Global Health Institute, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Stewart T. Cole
- Global Health Institute, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Karl-Heinz Altmann
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zürich, 8093 Zurich, Switzerland
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Remete AM, Nonn M, Fustero S, Fülöp F, Kiss L. Synthesis of fluorinated amino acid derivatives through late-stage deoxyfluorinations. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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7
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Remete AM, Nonn M, Fustero S, Haukka M, Fülöp F, Kiss L. Fluorine-Containing Functionalized Cyclopentene Scaffolds Through Ring Contraction and Deoxofluorination of Various Substituted Cyclohexenes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800057] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Attila Márió Remete
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
| | - Melinda Nonn
- MTA-SZTE Stereochemistry Research Group; Hungarian Academy of Sciences; Eötvös u. 6 6720 Szeged Hungary
| | - Santos Fustero
- Departamento de Química Orgánica; Facultad de Farmàcia; Universidad de Valencia; Av. Vicente Andrés Estellés, s/n 46100 Valencia Spain
| | - Matti Haukka
- Department of Chemistry; University of Jyväskylä; 40014 Jyväskylä Finland
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
- MTA-SZTE Stereochemistry Research Group; Hungarian Academy of Sciences; Eötvös u. 6 6720 Szeged Hungary
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
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Ordóñez M, Cativiela C, Romero-Estudillo I. An update on the stereoselective synthesis of γ-amino acids. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.08.011] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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