1
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Reza D, Balo R, Otero JM, Fletcher AM, García-Fandino R, Sánchez-Pedregal VM, Davies SG, Estévez RJ, Estévez JC. β-Peptides incorporating polyhydroxylated cyclohexane β-amino acid: synthesis and conformational study. Org Biomol Chem 2023; 21:8535-8547. [PMID: 37840474 DOI: 10.1039/d3ob00906h] [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: 10/17/2023]
Abstract
We describe the synthesis of trihydroxylated cyclohexane β-amino acids from (-)-shikimic acid, in their cis and trans configuration, and the incorporation of the trans isomer into a trans-2-aminocyclohexanecarboxylic acid peptide chain. Subsequently, the hydroxyl groups were partially or totally deprotected. The structural study of the new peptides by FTIR, CD, solution NMR and DFT calculations revealed that they all fold into a 14-helix secondary structure, similarly to the homooligomer of trans-2-aminocyclohexanecarboxylic acid. This means that the high degree of substitution of the cyclohexane ring of the new residue is compatible with the adoption of a stable helical secondary structure and opens opportunities for the design of more elaborate peptidic foldamers with oriented polar substituents at selected positions of the cycloalkane residues.
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Affiliation(s)
- David Reza
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica. Universidade de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain.
| | - Rosalino Balo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica. Universidade de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain.
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - José M Otero
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica. Universidade de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain.
| | - Ai M Fletcher
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Rebeca García-Fandino
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica. Universidade de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain.
- Departamento de Química Orgánica, Universidade de Santiago de Compostela, Avda. das Ciencias s/n, 15782 Santiago de Compostela, Spain
| | - Víctor M Sánchez-Pedregal
- Departamento de Química Orgánica, Universidade de Santiago de Compostela, Avda. das Ciencias s/n, 15782 Santiago de Compostela, Spain
| | - Stephen G Davies
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Ramón J Estévez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica. Universidade de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain.
- Departamento de Química Orgánica, Universidade de Santiago de Compostela, Avda. das Ciencias s/n, 15782 Santiago de Compostela, Spain
| | - Juan C Estévez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica. Universidade de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain.
- Departamento de Química Orgánica, Universidade de Santiago de Compostela, Avda. das Ciencias s/n, 15782 Santiago de Compostela, Spain
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2
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Seo N, Son H, Kim Y, Guzei IA, Kang P, Choi SH. Exploring a β-Amino Acid with a Seven-Membered Ring Constraint as a Foldamer Building Block for Nontraditional Helices. Org Lett 2023; 25:7497-7501. [PMID: 37800878 DOI: 10.1021/acs.orglett.3c02746] [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: 10/07/2023]
Abstract
We explored trans- and cis-2-aminocycloheptanecarboxylic acid (ACHpC) as potential building blocks for helical foldamers. trans-ACHpC does not show sufficient folding propensity in unnatural peptides. cis-ACHpC promotes nontraditional helices of two unnatural peptide backbones: the 11/9-helix for 1:1 α/β-peptides and the 12/10-helix for β-peptides with interconvertible handedness. The two opposite-handed 12/10-helices rapidly interconvert in solution by pseudorotation of the two twist chair forms of the cycloheptane moiety in each cis-ACHpC residue.
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Affiliation(s)
- Nuri Seo
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Hoyang Son
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Yonghan Kim
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Ilia A Guzei
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Philjae Kang
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Soo Hyuk Choi
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
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3
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Semghouli A, Remete AM, Kiss L. Synthesis of New β‐Amino Acid Scaffolds by Means of Ring‐Rearrangement Metathesis. ChemistrySelect 2022. [DOI: 10.1002/slct.202204244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Anas Semghouli
- Institute of Pharmaceutical Chemistry University of Szeged Eötvös u. 6 H-6720 Szeged Hungary
- Institute of Organic Chemistry Stereochemistry Research Group Research Centre for Natural Sciences Magyar tudósok krt. 2 H-1117 Budapest Hungary
| | - Attila M. Remete
- Institute of Pharmaceutical Chemistry University of Szeged Eötvös u. 6 H-6720 Szeged Hungary
| | - Loránd Kiss
- Institute of Organic Chemistry Stereochemistry Research Group Research Centre for Natural Sciences Magyar tudósok krt. 2 H-1117 Budapest Hungary
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4
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Nonn M, Paizs C, Kiss L. Recent Progress in the Selective Fluorinations of Some Functionalized Cycloalkenes. CHEM REC 2022; 22:e202200130. [PMID: 35680609 DOI: 10.1002/tcr.202200130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 05/25/2022] [Indexed: 11/09/2022]
Abstract
Organofluorine compounds have had an increasing impact in synthetic organic chemistry and pharmaceutical research over the past two decades. Their syntheses and the development of novel synthetic approaches towards versatile fluorinated small molecules have received great interest. Our research team has designed various selective and stereocontrolled methods for the construction of fluorine-containing small molecular entities, involving the transformation of various functionalized cycloalkenes across their ring olefin bond. The synthetic methodologies developed to access various pharmacologically interesting fluorinated derivatives with multiple chiral centers might be valuable protocols for the preparation of other classes of organic compounds as well.
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Affiliation(s)
- Melinda Nonn
- MTA TTK Lendület Artificial Transporter Research Group, Institute of Materials and Environmental Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok krt. 2, 1117, Budapest, Hungary
| | - Csaba Paizs
- Babeş-Bolyai University, Faculty of Chemistry and Chemical Engineering, Enzymology and Applied Biocatalysis Research Center, Arany János str. 11, 400028-, Cluj-Napoca, Romania
| | - Loránd Kiss
- Institute of Organic Chemistry, Research Centre for Natural Sciences, H-1117, Budapest, Magyar Tudósok krt. 2, Hungary
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5
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Li Y, Li Y, Shi H, Wei H, Li H, Funes-Ardoiz I, Yin G. Modular access to substituted cyclohexanes with kinetic stereocontrol. Science 2022; 376:749-753. [PMID: 35549424 DOI: 10.1126/science.abn9124] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Substituted six-membered cyclic hydrocarbons are common constituents of biologically active compounds. Although methods for the synthesis of thermodynamically favored, disubstituted cyclohexanes are well established, a reliable and modular protocol for the synthesis of their stereoisomers is still elusive. Herein, we report a general strategy for the modular synthesis of disubstituted cyclohexanes with excellent kinetic stereocontrol from readily accessible substituted methylenecyclohexanes by the implementation of chain-walking catalysis. Mechanistically, the initial introduction of a sterically demanding boron ester group adjacent to the cyclohexane is key to guiding the stereochemical outcome. The synthetic potential of this methodology has been highlighted in late-stage modification of complex bioactive molecules and in comparison with current cross-coupling techniques.
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Affiliation(s)
- Yangyang Li
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Yuqiang Li
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Hongjin Shi
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Hong Wei
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Haoyang Li
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Ignacio Funes-Ardoiz
- Department of Chemistry, Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Guoyin Yin
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
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6
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Mao W, Zhao H, Zhang M. Hydride transfer-initiated synthesis of 3-functionalized quinolines by deconstruction of isoquinoline derivatives. Chem Commun (Camb) 2022; 58:4380-4383. [PMID: 35297459 DOI: 10.1039/d2cc00127f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Under transition metal catalyst-free conditions, we herein present a hydride transfer-initiated construction of novel 3-(2-aminomethyl)aryl quinolines from N-isoquinolinium salts and 2-aminobenzaldehydes, proceeding with the merits of operational simplicity, high step and atom efficiency, good substrate and functional group compatibility, and mild conditions. The products are formed by reacting with the isoquinolyl motif as a two-carbon synthon along with the cleavage of its C3-N bond. Given the interesting applications of 3-aryl quinolines, the developed chemistry is anticipated to be further applied to develop new functional products.
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Affiliation(s)
- Wenhui Mao
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, and State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China.
| | - He Zhao
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, and State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China.
| | - Min Zhang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, and State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China.
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7
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Shankar S, Jyothi D, Rahim JU, Pal PC, Singh UP, Rai R. Conformation of Achiral α/β Hybrid Peptides Containing Glycine and 1‐Aminocyclohexaneacetic Acid. ChemistrySelect 2022. [DOI: 10.1002/slct.202104453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sudha Shankar
- Natural Products & Medicinal Chemistry Division (NPMC) CSIR-Indian Institute of Integrative Medicine (CSIR-IIIM) Jammu 180001 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Deeti Jyothi
- CSIR-Indian Institute of Chemical Biology (CSIR-IICB) Kolkata 700032 India
| | - Junaid ur Rahim
- Natural Products & Medicinal Chemistry Division (NPMC) CSIR-Indian Institute of Integrative Medicine (CSIR-IIIM) Jammu 180001 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Purna Chandra Pal
- CSIR-Indian Institute of Chemical Biology (CSIR-IICB) Kolkata 700032 India
| | - Umesh Prasad Singh
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- CSIR-Indian Institute of Chemical Biology (CSIR-IICB) Kolkata 700032 India
| | - Rajkishor Rai
- Natural Products & Medicinal Chemistry Division (NPMC) CSIR-Indian Institute of Integrative Medicine (CSIR-IIIM) Jammu 180001 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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8
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Mollari L, Valle-Amores MA, Martínez-Gualda AM, Marzo L, Fraile A, Aleman J. Asymmetric synthesis of cyclic β-amino carbonyl derivatives by a formal [3 + 2] photocycloaddition. Chem Commun (Camb) 2022; 58:1334-1337. [PMID: 34985053 DOI: 10.1039/d1cc05867c] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, a visible-light mediated strategy unlocking a family of cyclic β-amino carbonyl derivatives bearing three contiguous stereogenic centres is introduced. The overall reactivity relies on the performance of the substrate-catalyst complex to assist both the enantiocontrol and the photoredox tasks. This transformation led to an enantioselective [3 + 2] photocycloaddition between coordinated α,β-unsaturated acyl imidazoles and cyclopropylamine derivatives.
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Affiliation(s)
- Leonardo Mollari
- Departamento de Química Orgánica (Módulo 1), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049-Madrid, Spain.
| | - Miguel A Valle-Amores
- Departamento de Química Orgánica (Módulo 1), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049-Madrid, Spain.
| | - Ana M Martínez-Gualda
- Departamento de Química Orgánica (Módulo 1), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049-Madrid, Spain.
| | - Leyre Marzo
- Departamento de Química Orgánica (Módulo 1), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049-Madrid, Spain.
| | - Alberto Fraile
- Departamento de Química Orgánica (Módulo 1), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049-Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - José Aleman
- Departamento de Química Orgánica (Módulo 1), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049-Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
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9
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Zhu Y, Zhou T, Zhang H, He J, Li H, Lang M, Wang J, Peng S. Enantioselective Synthesis of α-Aryl-β-Aminocyclopropane Carboxylic Acid Derivatives via Rh(II)-Catalyzed Cyclopropanation of Vinylsulfonamides with α-Aryldiazoesters. J Org Chem 2022; 87:1074-1085. [PMID: 35057627 DOI: 10.1021/acs.joc.1c02386] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of vinylsulfonamides with donor-acceptor carbenes derived from α-aryldiazoesters, catalyzed by the tert-butyl glycine-derived dirhodium complex Rh2(S-4-Br-NTTL)4, has been reported. This method provides a variety of α-aryl-β-aminocyclopropane carboxylic acid derivatives bearing one quaternary carbon stereogenic center vicinal to the amino-substituted carbon in high yields with excellent diastereo- and enantioselectivities. Vinylsulfonamides showed complementary advantages over the well-developed vinylamides or vinylcarbamates for this Rh(II)-catalyzed cyclopropanation strategy. Moreover, these conformationally restricted α-aryl-β-aminocyclopropyl carboxylic acid derivatives can be readily incorporated into dipeptides.
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Affiliation(s)
- Yuqi Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Ting Zhou
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Hong Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Jieyin He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Hongguang Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Ming Lang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Jian Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China.,School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
| | - Shiyong Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
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10
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Fernández F, Fernández AG, Balo R, Sánchez-Pedregal VM, Royo M, Soengas RG, Estévez RJ, Estévez JC. Polyhydroxylated Cyclopentane β-Amino Acids Derived from d-Mannose and d-Galactose: Synthesis and Protocol for Incorporation into Peptides. ACS OMEGA 2022; 7:2002-2014. [PMID: 35071888 PMCID: PMC8772316 DOI: 10.1021/acsomega.1c05468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
A stereoselective synthesis of polyhydroxylated cyclopentane β-amino acids from hexoses is reported. The reaction sequence comprises, as key steps, ring-closing metathesis of a polysubstituted diene intermediate followed by the stereoselective aza-Michael functionalization of the resulting cyclopent-1-ene-1-carboxylic acid ester. Examples of synthesis of polysubstituted 2-aminocyclopentanecarboxylic acid derivatives starting from protected d-mannose and d-galactose are presented. A general protocol for the incorporation of these highly functionalized alicyclic β-amino acids into peptides is also reported.
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Affiliation(s)
- Fernando Fernández
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CIQUS), Universidade
de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Alberto G. Fernández
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CIQUS), Universidade
de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Rosalino Balo
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CIQUS), Universidade
de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Víctor M. Sánchez-Pedregal
- Departamento
de Química Orgánica, Universidade
de Santiago de Compostela, Avda. das Ciencias s/n, 15782 Santiago de Compostela, Spain
| | - Miriam Royo
- Centro
de Investigación Biomédica en Red Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), c/ Jordi Girona 18-26, 08034 Barcelona, Spain
- Instituto
de Química Avanzada de Cataluña (IQAC-CSIC), c/ Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Raquel G. Soengas
- Departamento
de Química Orgánica e Inorgánica, Universidad de Oviedo, c/ Julián Clavería s/n, 33006 Oviedo, Spain
| | - Ramón J. Estévez
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CIQUS), Universidade
de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
- Departamento
de Química Orgánica, Universidade
de Santiago de Compostela, Avda. das Ciencias s/n, 15782 Santiago de Compostela, Spain
| | - Juan C. Estévez
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CIQUS), Universidade
de Santiago de Compostela, c/Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
- Departamento
de Química Orgánica, Universidade
de Santiago de Compostela, Avda. das Ciencias s/n, 15782 Santiago de Compostela, Spain
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11
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Polat İ, Eşsiz S, Bozkaya U, Salamci E. Efficient and regioselective synthesis of dihydroxy-substituted 2-aminocyclooctane-1-carboxylic acid and its bicyclic derivatives. Beilstein J Org Chem 2022; 18:77-85. [PMID: 35047084 PMCID: PMC8744459 DOI: 10.3762/bjoc.18.7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/22/2021] [Indexed: 01/06/2023] Open
Abstract
The first synthesis of 2-amino-3,4-dihydroxycyclooctane-1-carboxylic acid, methyl 6-hydroxy-9-oxo-8-oxabicyclo[5.2.1]decan-10-yl)carbamate, and 10-amino-6-hydroxy-8-oxabicyclo[5.2.1]decan-9-one starting from cis-9-azabicyclo[6.2.0]dec-6-en-10-one is described. cis-9-Azabicyclo[6.2.0]dec-6-en-10-one was transformed into the corresponding amino ester and its protected amine. Oxidation of the double bond in the N-Boc-protected methyl 2-aminocyclooct-3-ene-1-carboxylate then delivered the targeted amino acid and its derivatives. Density-functional theory (DFT) computations were used to explain the reaction mechanism for the ring opening of the epoxide and the formation of five-membered lactones. The stereochemistry of the synthesized compounds was determined by 1D and 2D NMR spectroscopy. The configuration of methyl 6-hydroxy-9-oxo-8-oxabicyclo[5.2.1]decan-10-yl)carbamate was confirmed by X-ray diffraction.
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Affiliation(s)
- İlknur Polat
- Department of Chemistry, Faculty of Sciences, Atatürk University, 25240 Erzurum, Turkey
| | - Selçuk Eşsiz
- Department of Chemistry, Faculty of Sciences, Atatürk University, 25240 Erzurum, Turkey
- Hakkari University, Vocational School of Health Services, Department of Medical Services and Techniques, 30000 Hakkari, Turkey
| | - Uğur Bozkaya
- Department of Chemistry, Hacettepe University, 06800 Ankara, Turkey
| | - Emine Salamci
- Department of Chemistry, Faculty of Sciences, Atatürk University, 25240 Erzurum, Turkey
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12
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Choi S, Shim J, Kang P, Choi SH. Effect of a cis-4-aminopiperidine-3-carboxylic acid ( cis-APiC) residue on mixed-helical folding of unnatural peptides. Org Biomol Chem 2021; 20:613-618. [PMID: 34951620 DOI: 10.1039/d1ob02223g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The α/β-peptide 11/9-helix and the β-peptide 12/10-helix belong to "mixed" helices, in which two types of hydrogen bonds with opposite directionality alternate along the helical axis. cis-2-Aminocyclohexanecarboxylic acid (cis-ACHC) is known to promote these mixed helices and stabilize the helical propensity more than other acyclic β-residues. Application of a mixed-helical backbone still requires sufficient solubility in aqueous solution. In this regard, we chose cis-4-aminopiperidine-3-carboxylic acid (cis-APiC) as a foldamer building block that can provide both sufficient aqueous solubility and mixed-helical propensity. Conformational analyses of α/β- and β-peptides containing a cis-APiC residue by circular dichroism spectroscopy and single-crystal X-ray crystallography suggest that the incorporation of cis-APiC instead of cis-ACHC can enhance the aqueous solubility of the mixed-helical peptides without any adverse effect on helical folding. In addition, the ratio between right- and left-handed 12/10-helices of β-peptides can be rationalized by relative energies between the local conformations of the cis-APiC residue.
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Affiliation(s)
- Sunglim Choi
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea.
| | - Jihyun Shim
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea.
| | - Philjae Kang
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea.
| | - Soo Hyuk Choi
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea.
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13
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Zhou JS, Guo S, Zhao X, Chi YR. Nickel-catalyzed enantioselective umpolung hydrogenation for stereoselective synthesis of β-amido esters. Chem Commun (Camb) 2021; 57:11501-11504. [PMID: 34652359 DOI: 10.1039/d1cc05257h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nickel complexes ligated by strongly donating diphosphines catalyze enantioselective hydrogenation for the preparation of acyclic and cyclic β-amido esters. A combination of acetic acid and indium powder provides protons and electrons to form nickel hydrido complexes under umpolung hydrogenation conditions.
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Affiliation(s)
- Jianrong Steve Zhou
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Room F312, 2199 Lishui Road, Nanshan District, Shenzhen 518055, China.
| | - Siyu Guo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
| | - Xiaohu Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
| | - Yonggui Robin Chi
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
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14
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Minh Le T, Szakonyi Z. Enantiomeric Isopulegol as the Chiral Pool in the Total Synthesis of Bioactive Agents. CHEM REC 2021; 22:e202100194. [PMID: 34553822 DOI: 10.1002/tcr.202100194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/05/2021] [Indexed: 11/12/2022]
Abstract
Isopulegol, a pool of abundant chiral terpene, has long served as the starting material for the total synthesis of isopulegol-based drugs. As an inexpensive and versatile starting material, this compound continues to serve modern synthetic chemistry. This review highlights the total syntheses of terpenoids in the period from 1980 to 2020 in which with isopulegol applied as a building block.
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Affiliation(s)
- Tam Minh Le
- Institute of Pharmaceutical Chemistry, University of Szeged, Interdisciplinary Excellent Center, Eötvös utca 6, H-6720, Szeged, Hungary.,Stereochemistry Research Group of the Hungarian Academy Science, Eötvös utca 6, H-6720, Szeged, Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged, Interdisciplinary Excellent Center, Eötvös utca 6, H-6720, Szeged, Hungary.,Interdisciplinary Centre of Natural Products, University of Szeged, Eötvös utca 6, H-6720, Szeged, Hungary
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15
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Semghouli A, Benke Z, Remete AM, Novák TT, Fustero S, Kiss L. Selective Transformation of Norbornadiene into Functionalized Azaheterocycles and β-Amino Esters with Stereo- and Regiocontrol. Chem Asian J 2021; 16:3873-3881. [PMID: 34498420 DOI: 10.1002/asia.202100956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/03/2021] [Indexed: 11/06/2022]
Abstract
Novel functionalized azaheterocycles with multiple chiral centers have been accessed from readily available norbornene β-amino acids or β-lactams across a stereocontrolled synthetic route, based on ring-opening metathesis (ROM) of the staring unsaturated bicyclic amino esters, followed by selective cyclization through ring-closing metathesis (RCM). The RCM transformations have been studied under various experimental conditions to assess the scope of conversion, catalyst, yield, and substrate influence. The structure of the starting norbornene β-amino acids predetermined the structure of the new azaheterocycles, and the developed synthetic route took place with the conservation of the configuration of the chiral centers.
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Affiliation(s)
- Anas Semghouli
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Zsanett Benke
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Attila M Remete
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Tamás T Novák
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Santos Fustero
- Department of Organic Chemistry, University of Valencia, Pharmacy Faculty, 46100-Burjassot, Valencia, Spain
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, H-6720, Szeged, Eötvös u. 6, Hungary
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16
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Li Y, Hao M, Chang Y, Liu Y, Wang W, Sun N, Zhu W, Gao Z. Synthesis of
4‐Trifluoromethylated
1,
3‐Butadienes
via Palladium Catalyzed Heck Reaction. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yang Li
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries School of Environmental and Chemical Engineering Xi'an Polytechnic University Xi'an Shaanxi 710048 China
| | - Meng Hao
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries School of Environmental and Chemical Engineering Xi'an Polytechnic University Xi'an Shaanxi 710048 China
| | - Yu‐Chen Chang
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries School of Environmental and Chemical Engineering Xi'an Polytechnic University Xi'an Shaanxi 710048 China
| | - Yuan Liu
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries School of Environmental and Chemical Engineering Xi'an Polytechnic University Xi'an Shaanxi 710048 China
| | - Wen‐Fei Wang
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries School of Environmental and Chemical Engineering Xi'an Polytechnic University Xi'an Shaanxi 710048 China
| | - Ning Sun
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries School of Environmental and Chemical Engineering Xi'an Polytechnic University Xi'an Shaanxi 710048 China
| | - Wen‐Qing Zhu
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries School of Environmental and Chemical Engineering Xi'an Polytechnic University Xi'an Shaanxi 710048 China
| | - Ziwei Gao
- School of Chemistry & Chemical Engineering Yan'an University, Yan'an Shaanxi 716000 China
- Xinjiang Normal University Urumchi Xinjiang 650100 China
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17
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Ouchakour L, Nonn M, Remete AM, Kiss L. An Improved Stereocontrolled Access Route to Piperidine or Azepane β‐Amino Esters and Azabicyclic β‐ and γ‐Lactams; Synthesis of Novel Functionalized Azaheterocyles. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lamiaa Ouchakour
- Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
| | - Melinda Nonn
- Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
| | - Attila M. Remete
- Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
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18
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Benke Z, Remete AM, Semghouli A, Kiss L. Selective Functionalization of Norbornadiene Through Nitrile Oxide Cycloaddition/Ring‐Opening/Cross‐Metathesis Protocols. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zsanett Benke
- Institute of Pharmaceutical Chemistry University of Szeged H-6720 Szeged Eötvös u. 6 Hungary
- University of Szeged Interdisciplinary Excellence Centre Institute of Pharmaceutical Chemistry H-6720 Szeged Eötvös u. 6 Hungary
| | - Attila M. Remete
- Institute of Pharmaceutical Chemistry University of Szeged H-6720 Szeged Eötvös u. 6 Hungary
- University of Szeged Interdisciplinary Excellence Centre Institute of Pharmaceutical Chemistry H-6720 Szeged Eötvös u. 6 Hungary
| | - Anas Semghouli
- Institute of Pharmaceutical Chemistry University of Szeged H-6720 Szeged Eötvös u. 6 Hungary
- University of Szeged Interdisciplinary Excellence Centre Institute of Pharmaceutical Chemistry H-6720 Szeged Eötvös u. 6 Hungary
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry University of Szeged H-6720 Szeged Eötvös u. 6 Hungary
- University of Szeged Interdisciplinary Excellence Centre Institute of Pharmaceutical Chemistry H-6720 Szeged Eötvös u. 6 Hungary
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19
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Kimura Y, Uraguchi D, Ooi T. Catalytic asymmetric synthesis of 5-membered alicyclic α-quaternary β-amino acids via [3 + 2]-photocycloaddition of α-substituted acrylates. Org Biomol Chem 2021; 19:1744-1747. [PMID: 33555277 DOI: 10.1039/d1ob00126d] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The photocatalytically active salt of a cationic iridium polypyridyl complex and a chiral borate is competent to promote a highly stereoselective [3 + 2]-cycloaddition of cyclopropylurea with α-substituted acrylates. This protocol provides straightforward access to a variety of stereochemically defined 5-membered alicyclic α-quaternary β-amino acids, useful building blocks of β-peptides and peptidomimetics.
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Affiliation(s)
- Yuto Kimura
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan.
| | - Daisuke Uraguchi
- Institute for Catalysis, Hokkaido University, Sapporo 001-0021, Japan
| | - Takashi Ooi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan.
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20
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Bąchor U, Mączyński M. Selected β 2-, β 3- and β 2,3-Amino Acid Heterocyclic Derivatives and Their Biological Perspective. Molecules 2021; 26:438. [PMID: 33467741 PMCID: PMC7829935 DOI: 10.3390/molecules26020438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/10/2021] [Accepted: 01/12/2021] [Indexed: 11/25/2022] Open
Abstract
Heterocyclic moieties, especially five and six-membered rings containing nitrogen, oxygen or sulfur atoms, are broadly distributed in nature. Among them, synthetic and natural alike are pharmacologically active compounds and have always been at the forefront of attention due to their pharmacological properties. Heterocycles can be divided into different groups based on the presence of characteristic structural motifs. The presence of β-amino acid and heterocyclic core in one compound is very interesting; additionally, it very often plays a vital role in their biological activity. Usually, such compounds are not considered to be chemicals containing a β-amino acid motif; however, considering them as this class of compounds may open new routes of their preparation and application as new drug precursors or even drugs. The possibility of their application as nonproteinogenic amino acid residues in peptide or peptide derivatives synthesis to prepare a new class of compounds is also promising. This review highlights the actual state of knowledge about β-amino acid moiety-containing heterocycles presenting antiviral, anti-inflammatory, antibacterial compounds, anaplastic lymphoma kinase (ALK) inhibitors, as well as agonist and antagonists of the receptors.
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Affiliation(s)
- Urszula Bąchor
- Department of Organic Chemistry, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland;
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21
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Hernández D, Carro C, Boto A. "Doubly Customizable" Unit for the Generation of Structural Diversity: From Pure Enantiomeric Amines to Peptide Derivatives. J Org Chem 2021; 86:2796-2809. [PMID: 33433228 DOI: 10.1021/acs.joc.0c02751] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Readily available, low-cost 4R-hydroxy-l-proline (Hyp) is introduced as a "doubly customizable" unit for the generation of libraries of structurally diverse compounds. Hyp can be cleaved at two points, followed by the introduction of new functionalities. In the first cycle, the removal and replacement of the carboxylic group are carried out, followed (second cycle) by the scission of the 4,5-position and manipulation of the resulting chains. In this way, three new chains are generated and can be transformed independently to afford a diversity of products with tailored substituents, such as β-amino aldehydes, diamines, β-amino acid derivatives, including N-alkylated ones, or modified peptides. Many of these products are high-profit compounds but, in spite of their commercial value, are still scarce. Moreover, the process takes place with stereochemical control, and either pure R or S isomers can be obtained with small variations of the synthetic route.
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Affiliation(s)
- Dacil Hernández
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Tenerife, Spain
| | - Carmen Carro
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Tenerife, Spain.,BIOSIGMA, Antonio Domínguez Alfonso 16, 38003 Santa Cruz de Tenerife, Tenerife, Spain
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Tenerife, Spain
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22
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Zhang Y, Yan X, Cao J, Weng P, Miao D, Li Z, Jiang YB. Turn Conformation of β-Amino Acid-Based Short Peptides Promoted by an Amidothiourea Moiety at C-Terminus. J Org Chem 2020; 85:9844-9849. [PMID: 32584574 DOI: 10.1021/acs.joc.0c01139] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A C-terminal amidothiourea motif is shown to promote a β-turn-like folded conformation in a series of β-amino acid-based short peptides in both the solid state and solution phase by an intramolecular 11-membered ring hydrogen bond.
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Affiliation(s)
- Yanhan Zhang
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Xiaosheng Yan
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Jinlian Cao
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Peimin Weng
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Daiyu Miao
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Zhao Li
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Yun-Bao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
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23
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Kiss L, Benke Z, Remete AM, Fülöp F. Diversity-oriented Functionalization of Cyclodienes Through Selective Cycloaddition/Ring-opening/Cross-metathesis Protocols; Transformation of a "Flatland" into Three-dimensional Scaffolds With Stereo- and Regiocontrol. CHEM REC 2020; 20:1129-1141. [PMID: 32720742 DOI: 10.1002/tcr.202000070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/05/2020] [Accepted: 07/06/2020] [Indexed: 01/07/2023]
Abstract
This article presents selective transformations of some readily available cyclodienes through simple chemical procedures into novel functionalized small-molecular entities. The syntheses hereby described involved selective cycloadditions, followed by ring-opening metathesis of the resulting β-lactam or isoxazoline derivatives and selective cross-metathesis by differentiation of the olefin bonds on the alkenylated heterocycles. The cross-metathesis transformations have been detailed, which were performed under various experimental conditions with the aim of exploring chemodiscrimination of the olefin bonds and delivering the corresponding functionalized β-lactam or isoxazoline derivatives.
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Affiliation(s)
- Loránd Kiss
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, I, nterdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Zsanett Benke
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, I, nterdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Attila M Remete
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, I, nterdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, I, nterdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, H-6720, Szeged, Eötvös u. 6, Hungary.,MTA-SZTE Stereochemistry Research Group, Hungarian Academy of Sciences, H-6720, Szeged, Eötvös u. 6, Hungary
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24
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Nonn M, Remete AM, Kiss L. Structural Diversity‐Oriented Synthesis of Orthogonally Protected Cyclic Amino Acid Derivatives with Multiple Stereogenic Centers. Helv Chim Acta 2020. [DOI: 10.1002/hlca.202000090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Melinda Nonn
- Institute of Pharmaceutical ChemistryUniversity of Szeged Eötvös u. 6 HU-6720 Szeged Hungary
- Interdisciplinary Excellence CentreInstitute of Pharmaceutical ChemistryUniversity of Szeged Eötvös u. 6, HU 6720 Szeged Hungary
- MTA-SZTE Stereochemistry Research GroupHungarian Academy of Sciences Eötvös u. 6 HU-6720 Szeged Hungary
| | - Attila M. Remete
- Institute of Pharmaceutical ChemistryUniversity of Szeged Eötvös u. 6 HU-6720 Szeged Hungary
- Interdisciplinary Excellence CentreInstitute of Pharmaceutical ChemistryUniversity of Szeged Eötvös u. 6, HU 6720 Szeged Hungary
| | - Loránd Kiss
- Institute of Pharmaceutical ChemistryUniversity of Szeged Eötvös u. 6 HU-6720 Szeged Hungary
- Interdisciplinary Excellence CentreInstitute of Pharmaceutical ChemistryUniversity of Szeged Eötvös u. 6, HU 6720 Szeged Hungary
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25
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Chen M, Liu CT, Tang Y. Discovery and Biocatalytic Application of a PLP-Dependent Amino Acid γ-Substitution Enzyme That Catalyzes C-C Bond Formation. J Am Chem Soc 2020; 142:10506-10515. [PMID: 32434326 DOI: 10.1021/jacs.0c03535] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Pyridoxal phosphate (PLP)-dependent enzymes can catalyze transformations of l-amino acids at α, β, and γ positions. These enzymes are frequently involved in the biosynthesis of nonproteinogenic amino acids as building blocks of natural products and are attractive biocatalysts. Here, we report the discovery of a two-step enzymatic synthesis of (2S,6S)-6-methyl pipecolate 1, from the biosynthetic pathway of citrinadin. The key enzyme CndF is PLP-dependent and catalyzes the synthesis of (S)-2-amino-6-oxoheptanoate 3 that is in equilibrium with the cyclic Schiff base. The second enzyme CndE is a stereoselective imine reductase that gives 1. Biochemical characterization of CndF showed this enzyme performs γ-elimination of O-acetyl-l-homoserine to generate the vinylglycine ketimine, which is subjected to nucleophilic attack by acetoacetate to form the new Cγ-Cδ bond in 3 and complete the γ-substitution reaction. CndF displays promiscuity toward different β-keto carboxylate and esters. With use of an Aspergillus strain expressing CndF and CndE, feeding various alkyl-β-keto esters led to the biosynthesis of 6-substituted l-pipecolates. The discovery of CndF expands the repertoire of reactions that can be catalyzed by PLP-dependent enzymes.
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Affiliation(s)
- Mengbin Chen
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Chun-Ting Liu
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, California 90095, United States.,Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Yi Tang
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, California 90095, United States.,Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
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26
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Chen X, Zard SZ. Convergent Route to β-Amino Acids and to β-Heteroarylethylamines: An Unexpected Vinylation Reaction. Org Lett 2020; 22:3628-3632. [PMID: 32314926 DOI: 10.1021/acs.orglett.0c01087] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Various protected β2-amino acids can be prepared by radical addition of β-phthalimido-α-xanthyl propionic acid, both as the free acid or as the ethyl ester. Successive radical additions provide access to more complex structures. In the case of the free acid, addition to certain heteroaromatics leads directly to β-heteroarylethylamines through spontaneous decarboxylation of the intermediate adduct. Forcing the decarboxylation in some cases generated a vinyl group by decarboxylative elimination of the phthalimido group.
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Affiliation(s)
- Xuan Chen
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Cedex Palaiseau, France
| | - Samir Z Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Cedex Palaiseau, France
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27
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Nonn M, Binder A, Volk B, Kiss L. Stereo- and regiocontrolled synthesis of highly functionalized cyclopentanes with multiple chiral centers. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1733612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Melinda Nonn
- Institute of Pharmaceutical Chemistry, University of Szeged, Szeged, Hungary
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, University of Szeged, Szeged, Hungary
- MTA-SZTE Stereochemistry Research Group, Hungarian Academy of Sciences, Szeged, Hungary
| | - Adrienn Binder
- Institute of Pharmaceutical Chemistry, University of Szeged, Szeged, Hungary
| | - Balázs Volk
- Directorate of Drug Substance Development, Egis Pharmaceuticals Plc., Budapest, Hungary
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry, University of Szeged, Szeged, Hungary
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, University of Szeged, Szeged, Hungary
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28
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Sakharov PA, Rostovskii NV, Khlebnikov AF, Novikov MS. Regiodivergent Synthesis of Butenolide-Based α- and β-Amino Acid Derivatives via Base-Controlled Azirine Ring Expansion. Org Lett 2020; 22:3023-3027. [PMID: 32227960 DOI: 10.1021/acs.orglett.0c00793] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A method for the preparation of 5-aminobutenolides from 2-bromo-2H-azirine-2-carboxylic esters/amides with arylacetic acids has been developed. The reaction regioselectivity can be switched by a change of the basic catalyst, making it possible to prepare both butenolide-based α- and β-amino acid derivatives. The change in the regioselectivity is interpreted in terms of the stability and reactivity of the enolates formed during the SN2' substitution of the bromine in the azirine by the carboxylate ion.
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Affiliation(s)
- Pavel A Sakharov
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Nikolai V Rostovskii
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Alexander F Khlebnikov
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Mikhail S Novikov
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
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29
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Zou S, Zhang T, Wang S, Huang H. Iron‐Catalyzed Aminomethyloxygenative Cyclization of Hydroxy‐α‐diazoesters with
N,O
‐Aminals. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900492] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Suchen Zou
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences Hefei Anhui 230026 China
| | - Tianze Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences Hefei Anhui 230026 China
| | - Siyuan Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences Hefei Anhui 230026 China
| | - Hanmin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences Hefei Anhui 230026 China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Lanzhou Gansu 730000 China
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30
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Tanács D, Orosz T, Szakonyi Z, Le TM, Fülöp F, Lindner W, Ilisz I, Péter A. High-performance liquid chromatographic enantioseparation of isopulegol-based ß-amino lactone and ß-amino amide analogs on polysaccharide-based chiral stationary phases focusing on the change of the enantiomer elution order. J Chromatogr A 2020; 1621:461054. [PMID: 32204880 DOI: 10.1016/j.chroma.2020.461054] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/13/2020] [Accepted: 03/16/2020] [Indexed: 12/27/2022]
Abstract
The enantioselective separation of newly prepared, pharmacologically significant isopulegol-based ß-amino lactones and ß-amino amides has been studied by carrying out high-performance liquid chromatography on diverse amylose and cellulose tris-(phenylcarbamate)-based chiral stationary phases (CSPs) in n-hexane/alcohol/diethylamine or n-heptane/alcohol/ diethylamine mobile phase systems. For the elucidation of mechanistic details of the chiral recognition, seven polysaccharide-based CSPs were employed under normal-phase conditions. The effect of the nature of selector backbone (amylose or cellulose) and the position of substituents of the tris-(phenylcarbamate) moiety was evaluated. Due to the complex structure and solvation state of polysaccharide-based selectors and the resulting enantioselective interaction sites, the chromatographic conditions (e.g., the nature and content of alcohol modifier) were found to exert a strong influence on the chiral recognition process, resulting in a particular elution order of the resolved enantiomers. Since no prediction can be made for the observed enantiomeric resolution, special attention has been paid to the identification of the elution sequences. The comparison between the effectiveness of covalently immobilized and coated polysaccharide phases allows the conclusion that, in several cases, the application of coated phases can be more advantageous. However, in general, the immobilized phases may be preferred due to their increased robustness. Thermodynamic parameters derived from the temperature-dependence of the selectivity revealed enthalpically-driven separations in most cases, but unusual temperature behavior was also observed.
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Affiliation(s)
- Dániel Tanács
- Institute of Pharmaceutical Analysis, Interdisciplinary Excellence Centre, University of Szeged, H-6720 Szeged, Somogyi u. 4, Hungary
| | - Tímea Orosz
- Institute of Pharmaceutical Analysis, Interdisciplinary Excellence Centre, University of Szeged, H-6720 Szeged, Somogyi u. 4, Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary
| | - Tam Minh Le
- Institute of Pharmaceutical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary; MTA-SZTE Stereochemistry Research Group, Hungarian Academy of Sciences, H-6720 Szeged, Eötvös u. 6, Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary; MTA-SZTE Stereochemistry Research Group, Hungarian Academy of Sciences, H-6720 Szeged, Eötvös u. 6, Hungary
| | - Wolfgang Lindner
- Department of Analytical Chemistry, University of Vienna, Währingerstrasse 38, 1090 Vienna, Austria
| | - István Ilisz
- Institute of Pharmaceutical Analysis, Interdisciplinary Excellence Centre, University of Szeged, H-6720 Szeged, Somogyi u. 4, Hungary.
| | - Antal Péter
- Institute of Pharmaceutical Analysis, Interdisciplinary Excellence Centre, University of Szeged, H-6720 Szeged, Somogyi u. 4, Hungary
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31
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Otero JM, Estévez AM, Estévez JC, Fleet GW, Estévez RJ. Highly functionalized cyclic and bicyclic β−amino acids from sugar β−nitroesters. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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32
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Onomura O, Yamamoto K, Toguchi H, Harada T, Kuriyama M. Oxidative C-C Bond Cleavage of N-Protected Cyclic Amines by HNO3-TFA System. HETEROCYCLES 2020. [DOI: 10.3987/com-19-s(f)31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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33
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Luo G, Huang Z, Zhuo S, Mou C, Wu J, Jin Z, Chi YR. Access to Cyclic β‐Amino Acids by Amine‐Catalyzed Enantioselective Addition of the γ‐Carbon Atoms of α,β‐Unsaturated Imines to Enals. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Guoyong Luo
- School of PharmacyGuizhou University of Traditional Chinese Medicine Huaxi District Guiyang 550025 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Zhijian Huang
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Shitian Zhuo
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Chengli Mou
- School of PharmacyGuizhou University of Traditional Chinese Medicine Huaxi District Guiyang 550025 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Jian Wu
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
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34
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Luo G, Huang Z, Zhuo S, Mou C, Wu J, Jin Z, Chi YR. Access to Cyclic β‐Amino Acids by Amine‐Catalyzed Enantioselective Addition of the γ‐Carbon Atoms of α,β‐Unsaturated Imines to Enals. Angew Chem Int Ed Engl 2019; 58:17189-17193. [DOI: 10.1002/anie.201908896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/08/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Guoyong Luo
- School of PharmacyGuizhou University of Traditional Chinese Medicine Huaxi District Guiyang 550025 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Zhijian Huang
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Shitian Zhuo
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Chengli Mou
- School of PharmacyGuizhou University of Traditional Chinese Medicine Huaxi District Guiyang 550025 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Jian Wu
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
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35
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Cyclobutane-Containing Scaffolds as Useful Intermediates in the Stereoselective Synthesis of Suitable Candidates for Biomedical Purposes: Surfactants, Gelators and Metal Cation Ligands. Int J Mol Sci 2019; 20:ijms20184333. [PMID: 31487921 PMCID: PMC6770955 DOI: 10.3390/ijms20184333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 08/28/2019] [Accepted: 09/02/2019] [Indexed: 11/16/2022] Open
Abstract
Efficient and versatile synthetic methodologies are reported for the preparation of products that are suitable candidates to be used as surfactants, gelators for hydroxylic solvents or metal cation ligands, with potential use in several fields including biomedical applications. The common structural feature of all the synthesized products is the presence of a cis or trans-1,2- or cis-1,3-difunctionalized cyclobutane ring. In the two first cases, the key intermediates including enantiomerically pure 1,3-diamines and 1,3-amino alcohols have been prepared from β-amino acid derivatives obtained, in turn, from a chiral half-ester. This compound is also precursor of γ-amino esters. Furthermore, two kind of polydentate ligands have also been synthesized from a symmetric 1,5-diamine obtained from norpinic acid, which was easily prepared from commercial verbenone.
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36
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Chang Z, Guillot R, Boddaert T, Aitken DJ. Stereocontrolled Preparation of Diversely Trifunctionalized Cyclobutanes. J Org Chem 2019; 84:10518-10525. [PMID: 31339722 DOI: 10.1021/acs.joc.9b01463] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The expedient and stereoselective syntheses of small libraries of trifunctionalized cyclobutane scaffolds bearing an acid, an amine, and a third functional group are described. Starting from a single precursor, the readily available protected derivative of all-cis-2-amino-3-hydroxycyclobutane-1-carboxylic acid, cis-trans stereoisomers are obtained following an SN2-type reaction, while all-trans stereoisomers are obtained using the same strategy preceded by a C1 epimerization reaction.
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Affiliation(s)
- Zong Chang
- CP3A Organic Synthesis Group & Services Communs, ICMMO, CNRS UMR 8182 , Université Paris Sud, Université Paris Saclay , 15 rue Georges Clemenceau , Orsay 91405 Cedex , France
| | - Régis Guillot
- CP3A Organic Synthesis Group & Services Communs, ICMMO, CNRS UMR 8182 , Université Paris Sud, Université Paris Saclay , 15 rue Georges Clemenceau , Orsay 91405 Cedex , France
| | - Thomas Boddaert
- CP3A Organic Synthesis Group & Services Communs, ICMMO, CNRS UMR 8182 , Université Paris Sud, Université Paris Saclay , 15 rue Georges Clemenceau , Orsay 91405 Cedex , France
| | - David J Aitken
- CP3A Organic Synthesis Group & Services Communs, ICMMO, CNRS UMR 8182 , Université Paris Sud, Université Paris Saclay , 15 rue Georges Clemenceau , Orsay 91405 Cedex , France
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37
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Joarder DD, Gayen S, Sarkar R, Bhattacharya R, Roy S, Maiti DK. (Ar-tpy)Ru II(ACN) 3: A Water-Soluble Catalyst for Aldehyde Amidation, Olefin Oxo-Scissoring, and Alkyne Oxygenation. J Org Chem 2019; 84:8468-8480. [PMID: 31244154 DOI: 10.1021/acs.joc.9b00487] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The synthetic chemists always look for developing new catalysts, sustainable catalysis, and their applications in various organic transformations. Herein, we report a new class of water-soluble complexes, (Ar-tpy)RuII(ACN)3, utilizing designed terpyridines possessing electron-donating and -withdrawing aromatic residues for tuning the catalytic activity of the Ru(II) complex. These complexes displayed excellent catalytic activity for several oxidative organic transformations including late-stage C-H functionalization of aldehydes with NH2OR to valuable primary amides in nonconventional aqueous media with excellent yield. Its diverse catalytic power was established for direct oxo-scissoring of a wide range of alkenes to furnish aldehydes and/or ketones in high yield using a low catalyst loading in the water. Its smart catalytic activity under mild conditions was validated for dioxygenation of alkynes to highly demanding labile synthons, 1,2-diketones, and/or acids. This general and sustainable catalysis was successfully employed on sugar-based substrates to obtain the chiral amides, aldehydes, and labile 1,2-diketones. The catalyst is recovered and reused with a moderate turnover. The proposed mechanistic pathway is supported by isolation of the intermediates and their characterization. This multifaceted sustainable catalysis is a unique tool, especially for late-stage functionalization, to furnish the targeted compounds through frequently used amidation and oxygenation processes in the academia and industry.
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Affiliation(s)
- Dripta De Joarder
- Department of Chemistry , University of Calcutta , 92 A. P. C. Road , Kolkata 700009 , India
| | - Subrata Gayen
- Department of Chemistry , University of Calcutta , 92 A. P. C. Road , Kolkata 700009 , India
| | - Rajarshi Sarkar
- School of Technology Management & Engineering , NMIMS , Indore 453112 , India
| | - Rajarshi Bhattacharya
- Department of Chemistry , University of Calcutta , 92 A. P. C. Road , Kolkata 700009 , India
| | | | - Dilip K Maiti
- Department of Chemistry , University of Calcutta , 92 A. P. C. Road , Kolkata 700009 , India
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38
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Tarasenko EA, Shestakov IV, Rybakov VB, Beletskaya IP. Enantioselective Copper(II)/Box‐Catalyzed Synthesis of Chiral
β
3
‐Tryptophan Derivatives. ChemCatChem 2019. [DOI: 10.1002/cctc.201900575] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Elena A. Tarasenko
- Department of ChemistryM. V. Lomonosov Moscow State University Leninskie Gory, GSP-1 Moscow 119991 Russian Federation
| | - Ivan V. Shestakov
- Department of ChemistryM. V. Lomonosov Moscow State University Leninskie Gory, GSP-1 Moscow 119991 Russian Federation
| | - Victor B. Rybakov
- Department of ChemistryM. V. Lomonosov Moscow State University Leninskie Gory, GSP-1 Moscow 119991 Russian Federation
| | - Irina P. Beletskaya
- Department of ChemistryM. V. Lomonosov Moscow State University Leninskie Gory, GSP-1 Moscow 119991 Russian Federation
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39
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Kiss L, Ouchakour L, Ábrahámi RA, Nonn M. Stereocontrolled Synthesis of Functionalized Azaheterocycles from Carbocycles through Oxidative Ring Opening/Reductive Ring Closing Protocols. CHEM REC 2019; 20:120-141. [PMID: 31250972 DOI: 10.1002/tcr.201900025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 05/23/2019] [Accepted: 05/29/2019] [Indexed: 12/11/2022]
Abstract
Fluorine-containing organic scaffolds are of significant interest in medicinal chemistry. The incorporation of fluorine into biomolecules can lead to remarkable changes in their physical, chemical, and biological properties. There are already many drugs on the market, which contain at least one fluorine atom. Saturated functionalized azaheterocycles as bioactive substances have gained increasing attention in pharmaceutical chemistry. Due to the high biorelevance of organofluorine molecules and the importance of N-heterocyclic compounds, selective stereocontrolled procedures to the access of new fluorine-containing saturated N-heterocycles are considered to be a hot research topic. This account summarizes the synthesis of functionalized and fluorine-containing saturated azaheterocycles starting from functionalized cycloalkenes and based on oxidative ring cleavage of diol intermediates followed by ring expansion with reductive amination.
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Affiliation(s)
- Loránd Kiss
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, Hungary
| | - Lamiaa Ouchakour
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, Hungary
| | - Renáta A Ábrahámi
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Melinda Nonn
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,MTA-SZTE Stereochemistry Research Group, Hungarian Academy of Sciences, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, Hungary
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40
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Marichev KO, Doyle MP. Catalytic asymmetric cycloaddition reactions of enoldiazo compounds. Org Biomol Chem 2019; 17:4183-4195. [PMID: 30924829 PMCID: PMC6484446 DOI: 10.1039/c9ob00478e] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review describes catalytic asymmetric cycloaddition reactions of silyl-protected enoldiazo compounds for the construction of highly functionalized carbo- and heterocycles which possess one or more chiral center(s). The enoldiazo compound or its derivative, donor-acceptor cyclopropene, form electrophilic vinylogous metal carbene intermediates that combine stepwise with nucleophilic dipolar reactants to form products from [3 + 1]-, [3 + 2]-, [3 + 3]-, [3 + 4]-, and [3 + 5]-cycloaddition, generally in high yield and with exceptional stereocontrol and regioselectivity.
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Affiliation(s)
- Kostiantyn O. Marichev
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, USA.
| | - Michael P. Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, USA.
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41
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Nonn M, Benke Z, Fustero S, Fülöp F, Kiss L. Chemodiscrimination of Olefin Bonds Through Cross-Metathesis Reactions - Synthesis of Functionalized β-Lactam and β-Amino Acid Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900101] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Melinda Nonn
- 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
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry; University of Szeged; Hungary
| | - Zsanett Benke
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry; University of Szeged; Hungary
| | - Santos Fustero
- Departamento de Química Orgánica; Facultad de Farmàcia; Universidad de Valencia; Av. Vicente Andrés Estellés, s/n 46100 Valencia Spain
| | - 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
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry; University of Szeged; Hungary
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry; University of Szeged; Hungary
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42
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Anil D, Altundas R, Kara Y. A novel synthesis of (2 S)-3-(2,4,5-trifluorophenyl)propane-1,2-diol by sharpless asymmetric epoxidation method. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1576050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Derya Anil
- Department of Chemistry, Faculty of Sciences, Ataturk University, Erzurum, Turkey
| | - Ramazan Altundas
- Department of Chemistry, Faculty of Sciences, Gebze Technical University, Gebze, Turkey
| | - Yunus Kara
- Department of Chemistry, Faculty of Sciences, Ataturk University, Erzurum, Turkey
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43
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Sukach V, Melnykov S, Bertho S, Diachenko I, Retailleau P, Vovk M, Gillaizeau I. Access to Unprotected β-Fluoroalkyl β-Amino Acids and Their α-Hydroxy Derivatives. Org Lett 2019; 21:2340-2345. [PMID: 30873840 DOI: 10.1021/acs.orglett.9b00622] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Unprotected β-(het)aryl-β-fluoroalkyl β-amino acids and their α-hydroxy derivatives can be readily obtained using a decarboxylative Mannich-type reaction without protection/deprotection steps. This protocol utilizes lithium hexamethyldisilazide and (het)arylfluoroalkyl ketones to generate NH-ketimine intermediates. The mild reaction conditions allow the preparation of original fluorinated β-amino acids as useful building blocks in a practical and scalable manner.
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Affiliation(s)
- Volodymyr Sukach
- Le Studium Loire Valley Institute for Advanced Studies , 1, rue Dupanloup , Orléans 45000 , France.,Institute of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS , Université d'Orléans , rue de Chartres , Orléans 45100 , France
| | - Serhii Melnykov
- Institute of Organic Chemistry of NAS of Ukraine , 5, Murmanska Str ., Kyiv 02660 , Ukraine.,Enamine LTD , 78 Chervonotkats'ka Str. , Kyiv 02094 , Ukraine
| | - Sylvain Bertho
- Institute of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS , Université d'Orléans , rue de Chartres , Orléans 45100 , France
| | - Iryna Diachenko
- Institute of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS , Université d'Orléans , rue de Chartres , Orléans 45100 , France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, Avenue de la Terrasse , Gif-sur-Yvette 91198 , France
| | - Mykhailo Vovk
- Institute of Organic Chemistry of NAS of Ukraine , 5, Murmanska Str ., Kyiv 02660 , Ukraine
| | - Isabelle Gillaizeau
- Institute of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS , Université d'Orléans , rue de Chartres , Orléans 45100 , France
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44
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An Insight into Selective Olefin Bond Functionalization of Cyclodienes through Nitrile Oxide 1,3-Dipolar Cycloadditions. ChemistrySelect 2019. [DOI: 10.1002/slct.201900688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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45
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Nagy A, Goldschmidt Gőz V, Pintér I, Farkas V, Perczel A. α/β-Chimera peptide synthesis with cyclic β-sugar amino acids: the efficient coupling protocol. Amino Acids 2019; 51:669-678. [PMID: 30758725 DOI: 10.1007/s00726-019-02702-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 01/14/2019] [Indexed: 12/12/2022]
Abstract
The synthesis of α/β-chimeras comprises peptide bond formation from α- to β-, from β- to β-, and from β- to α-amino acid residues. The fine-tuned solid phase synthesis of -GXXG- chimera peptides containing the simplest achiral α-amino acid glycine and two cyclic SAAs of different ring size [X denoting cyclic β-Sugar Amino Acids (β-SAA)] is reported, variants containing Fmoc-RibAFU(ip)-OH a furanoid-, and Fmoc-GlcAPU(Me)-OH a pyranoid-type structural "Lego-element". Systematic search for the best coupling strategy with both H-β-SAA-OHs is described, including the comparison of the different coupling reagents and conditions. Selecting the optimal reagent (from commonly used PyBOP, HATU and HOBt) was assisted by time-resolved 1H-NMR: formation and stability of the Fmoc protected active esters were compared. We found that PyBOP is the best choice for successfully coupling both H-β-SAA-OH prototypes. The present comparative results open a reasonable route for building efficiently various -β-SAA- containing homo- and heterooligomers.
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Affiliation(s)
- Adrienn Nagy
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány P. Stny. 1/A, Budapest, 1117, Hungary
| | | | - István Pintér
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány P. Stny. 1/A, Budapest, 1117, Hungary
| | - Viktor Farkas
- MTA-ELTE Protein Modeling Research Group, Pázmány P. Sétány. 1/A, Budapest, 1117, Hungary
| | - András Perczel
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány P. Stny. 1/A, Budapest, 1117, Hungary. .,MTA-ELTE Protein Modeling Research Group, Pázmány P. Sétány. 1/A, Budapest, 1117, Hungary.
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46
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Harnisch H, Ilisz I, Fülöp F, Szakonyi Z, Kiss L, Péter A, Scriba GKE. Cyclodextrin-mediated capillary electrophoresis enantioseparation of dansylated β-amino acids with bicyclo[2.2.2]octane, bicyclo[3.1.1]heptane and cyclopenta[d][1,2]oxazole core structures. Electrophoresis 2019; 40:1931-1940. [DOI: 10.1002/elps.201800492] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/28/2019] [Accepted: 01/30/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Henrik Harnisch
- Department of Pharmaceutical and Medicinal Chemistry; School of Pharmacy; Friedrich Schiller University Jena; Jena Germany
| | - István Ilisz
- Institute of Pharmaceutical Analysis; Interdisciplinary Excellence Centre; University of Szeged; Szeged Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry; Interdisciplinary Excellence Centre; University of Szeged; Szeged Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry; Interdisciplinary Excellence Centre; University of Szeged; Szeged Hungary
| | - Lóránd Kiss
- Institute of Pharmaceutical Chemistry; Interdisciplinary Excellence Centre; University of Szeged; Szeged Hungary
| | - Antal Péter
- Institute of Pharmaceutical Analysis; Interdisciplinary Excellence Centre; University of Szeged; Szeged Hungary
| | - Gerhard K. E. Scriba
- Department of Pharmaceutical and Medicinal Chemistry; School of Pharmacy; Friedrich Schiller University Jena; Jena Germany
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47
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Boddaert T, Taylor JE, Bull SD, Aitken DJ. A Selective Deprotection Strategy for the Construction of trans-2-Aminocyclopropanecarboxylic Acid Derived Peptides. Org Lett 2019; 21:100-103. [PMID: 30556696 DOI: 10.1021/acs.orglett.8b03533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A procedure allowing access to unprecedented tripeptides containing a trans-2-aminocyclopropanecarboxylic acid residue in their central position has been established. The key features of the strategy are the use of a masked trans-2-aminocyclopropanecarboxylic acid monomer equivalent for C-terminal coupling and full N-Boc protection of all amide groups until the final step.
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Affiliation(s)
- Thomas Boddaert
- ICMMO, CNRS , Université Paris-Sud, Université Paris-Saclay , 15 rue Georges Clemenceau , 91405 Orsay Cedex , France
| | - James E Taylor
- ICMMO, CNRS , Université Paris-Sud, Université Paris-Saclay , 15 rue Georges Clemenceau , 91405 Orsay Cedex , France.,Department of Chemistry , University of Bath , Claverton Down , Bath , BA2 7AY , U.K
| | - Steven D Bull
- Department of Chemistry , University of Bath , Claverton Down , Bath , BA2 7AY , U.K
| | - David J Aitken
- ICMMO, CNRS , Université Paris-Sud, Université Paris-Saclay , 15 rue Georges Clemenceau , 91405 Orsay Cedex , France
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48
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Remete AM, Kiss L. Alicyclic β- and γ-Amino Acids: Useful Scaffolds for the Stereocontrolled Access to Amino Acid-Based Carbocyclic Nucleoside Analogs. Molecules 2019; 24:molecules24010161. [PMID: 30609864 PMCID: PMC6337571 DOI: 10.3390/molecules24010161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 12/21/2018] [Accepted: 12/23/2018] [Indexed: 12/27/2022] Open
Abstract
Stereocontrolled synthesis of some amino acid-based carbocyclic nucleoside analogs containing ring C=C bond has been performed on β- and γ-lactam basis. Key steps were N-arylation of readily available β- or γ-lactam-derived amino ester isomers and amino alcohols with 5-amino-4,6-dichloropyrimidine; ring closure of the formed adduct with HC(OMe)3 and nucleophilic displacement of chlorine with various N-nucleophiles in the resulting 6-chloropurine moiety.
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Affiliation(s)
- Attila Márió Remete
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary.
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary.
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary.
- Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary.
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49
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Asymmetric synthesis of aminocyclooctenecarbonitriles: Cyclooctene β-lactam and hydroxyaminocyclooctene carboxylic precursors. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.12.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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50
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Ouchakour L, Ábrahámi RA, Forró E, Haukka M, Fülöp F, Kiss L. Stereocontrolled Synthesis of Fluorine-Containing Piperidine γ-Amino Acid Derivatives. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801540] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Lamiaa Ouchakour
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
- Interdisciplinary Excellence Centre; Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
| | - Renáta A. Ábrahámi
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
| | - Enikő Forró
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
| | - Matti Haukka
- Department of Chemistry; Institute of Pharmaceutical Chemistry; University of Jyväskylä; Finland
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
- MTA-SZTE Stereochemistry Research Group; Hungarian Academy of Sciences; Szeged, Eötvös u. 6 Hungary
- Interdisciplinary Excellence Centre; Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
- Interdisciplinary Excellence Centre; Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
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