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Van Holsbeeck K, Elsocht M, Ballet S. Propargylamine Amino Acids as Constrained Nε-Substituted Lysine Mimetics. Org Lett 2023; 25:130-133. [PMID: 36546856 DOI: 10.1021/acs.orglett.2c03931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Herein, alkylated propargylamines are reported as constrained lysine mimetics and constructed in a single step using a copper(I)-catalyzed A3-coupling reaction. Using multiple secondary amines, the reaction allowed the generation of a structurally diverse set of N-Fmoc protected amino acid derivatives. In addition, the A3-reaction was applied on solid phase via the assembly of short model tripeptides. Moreover, the internal alkyne moiety allowed further functionalization toward novel 1,4,5-trisubstituted 1,2,3-triazole-based amino acids.
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Affiliation(s)
- Kevin Van Holsbeeck
- Research Group of Organic Chemistry, Vrije Universiteit Brussel, Pleinlaan 2, Brussels 1050, Belgium
| | - Mathias Elsocht
- Research Group of Organic Chemistry, Vrije Universiteit Brussel, Pleinlaan 2, Brussels 1050, Belgium
| | - Steven Ballet
- Research Group of Organic Chemistry, Vrije Universiteit Brussel, Pleinlaan 2, Brussels 1050, Belgium
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2
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Demchuk OP, Hryshchuk OV, Vashchenko BV, Trofymchuk SA, Melnykov KP, Skreminskiy A, Volochnyuk DM, Grygorenko OO. Fluoroalkyl‐Containing 1,2‐Disubstituted Cyclobutanes: Advanced Building Blocks for Medicinal Chemistry. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Oleksandr P. Demchuk
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Institute of Organic Chemistry National Academy of Sciences of Ukraine Murmanska Street 5 Kyiv 02660 Ukraine
| | - Oleksandr V. Hryshchuk
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Bohdan V. Vashchenko
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | | | - Kostiantyn P. Melnykov
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | | | - Dmitriy M. Volochnyuk
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Institute of Organic Chemistry National Academy of Sciences of Ukraine Murmanska Street 5 Kyiv 02660 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
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3
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Feskov IO, Golub BO, Vashchenko BV, Levterov VV, Kondratov IS, Grygorenko OO, Haufe G. GABA Analogues and Related Mono-/Bifunctional Building Blocks Derived from the Fluorocyclobutane Scaffold. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000733] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Illia O. Feskov
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry; NAS of Ukraine; Murmanska Street 1 02660 Kyiv Ukraine
| | | | - Bohdan V. Vashchenko
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
| | | | - Ivan S. Kondratov
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Günter Haufe
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
- Cells-in-Motion Cluster of Excellence; Westfälische Wilhelms-Universität Münster; Waldeyerstraße 15 48149 Münster Germany
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Arai N, Ohkuma T. Stereoselective Construction of Methylenecyclobutane-Fused Indolines through Photosensitized [2+2] Cycloaddition of Allene-Tethered Indole Derivatives. Org Lett 2019; 21:1506-1510. [PMID: 30789275 DOI: 10.1021/acs.orglett.9b00309] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Irradiation of 1-(hexa-4,5-dienoyl)indole derivatives in the presence of an aromatic ketone by a high-pressure mercury lamp through Pyrex glass gave the corresponding cyclized products stereoselectively in high yields. The major part of the products was an all- cis-fused methylenecyclobutane-type compound produced through [2+2] cycloaddition, accompanied by small amounts of alkynes via 1,5-hydrogen transfer of a biradical intermediate. Among a range of aromatic ketones, 3',4'-dimethoxyacetophenone was found to sensitize the substrate quite effectively.
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Affiliation(s)
- Noriyoshi Arai
- Division of Applied Chemistry, Faculty of Engineering , Hokkaido University , Sapporo , Hokkaido 060-8628 , Japan
| | - Takeshi Ohkuma
- Division of Applied Chemistry, Faculty of Engineering , Hokkaido University , Sapporo , Hokkaido 060-8628 , Japan.,Frontier Chemistry Center, Faculty of Engineering , Hokkaido University , Sapporo , Hokkaido 060-8628 , Japan
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5
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Michurin OM, Tolmachova K, Afonin S, Babii O, Grage SL, Ulrich AS, Komarov IV, Radchenko DS. Conformationally Constrained Mono-Fluorinated Arginine as a Cationic Label for Solid-State 19
F NMR Analysis of Membrane-Bound Peptides. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800473] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Kateryna Tolmachova
- Enamine Ltd.; vul. Chervonotkatska 78 02094 Kyiv Ukraine
- Institute of Bioorganic Chemistry and Petrochemistry; National Academy of Sciences of Ukraine; vul. Murmanska 1 02660 Kyiv Ukraine
| | - Sergii Afonin
- Institute of Biological Interfaces (IBG-2); Karlsruhe Institute of Technology (KIT); POB 3640 76021 Karlsruhe Germany
| | - Oleg Babii
- Institute of Organic Chemistry (IOC); KIT; Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Stephan L. Grage
- Institute of Biological Interfaces (IBG-2); Karlsruhe Institute of Technology (KIT); POB 3640 76021 Karlsruhe Germany
| | - Anne S. Ulrich
- Institute of Biological Interfaces (IBG-2); Karlsruhe Institute of Technology (KIT); POB 3640 76021 Karlsruhe Germany
- Institute of Organic Chemistry (IOC); KIT; Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Igor V. Komarov
- Taras Shevchenko National University of Kyiv; Taras Shevchenko National University of Kyiv; vul. Volodymyrska 60 01601 Kyiv Ukraine
| | - Dmytro S. Radchenko
- Enamine Ltd.; vul. Chervonotkatska 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Taras Shevchenko National University of Kyiv; vul. Volodymyrska 60 01601 Kyiv Ukraine
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Feskov IO, Chernykh AV, Kondratov IS, Klyachina M, Daniliuc CG, Haufe G. Cyclobutyl-Containing Rigid Analogues of Threonine: Synthesis and Physical Chemical Properties. J Org Chem 2017; 82:12863-12868. [DOI: 10.1021/acs.joc.7b02259] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Illia O. Feskov
- Institute
of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Murmanska Str. 1, Kyiv 02660, Ukraine
- Enamine Ltd, Chervonotkatska
Str. 78, Kyiv 02094, Ukraine
| | - Anton V. Chernykh
- Enamine Ltd, Chervonotkatska
Str. 78, Kyiv 02094, Ukraine
- Institute
of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Str. 5, Kyiv 02660, Ukraine
| | - Ivan S. Kondratov
- Institute
of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Murmanska Str. 1, Kyiv 02660, Ukraine
- Enamine Ltd, Chervonotkatska
Str. 78, Kyiv 02094, Ukraine
| | | | - Constantin G. Daniliuc
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Günter Haufe
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149 Münster, Germany
- Cells-in-Motion
Cluster of Excellence, Universität Münster, Waldeyerstraße
15, 48149 Münster, Germany
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Babii O, Afonin S, Schober T, Komarov IV, Ulrich AS. Flexibility vs rigidity of amphipathic peptide conjugates when interacting with lipid bilayers. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:2505-2515. [PMID: 28958778 PMCID: PMC5667891 DOI: 10.1016/j.bbamem.2017.09.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 09/05/2017] [Accepted: 09/21/2017] [Indexed: 01/17/2023]
Abstract
For the first time, the photoisomerization of a diarylethene moiety (DAET) in peptide conjugates was used to probe the effects of molecular rigidity/flexibility on the structure and behavior of model peptides bound to lipid membranes. The DAET unit was incorporated into the backbones of linear peptide-based constructs, connecting two amphipathic sequences (derived from the β-stranded peptide (KIGAKI)3 and/or the α-helical peptide BP100). A β-strand-DAET-α-helix and an α-helix-DAET-α-helix models were synthesized and studied in phospholipid membranes. Light-induced photoisomerization of the linker allowed the generation of two forms of each conjugate, which differed in the conformational mobility of the junction between the α-helical and/or the β-stranded part of these peptidomimetic molecules. A detailed study of their structural, orientational and conformational behavior, both in isotropic solution and in phospholipid model membranes, was carried out using circular dichroism and solid-state 19F-NMR spectroscopy. The study showed that the rigid and flexible forms of the two conjugates had appreciably different structures only when embedded in an anisotropic lipid environment and only in the gel phase. The influence of the rigidity/flexibility of the studied conjugates on the lipid thermotropic phase transition was also investigated by differential scanning calorimetry. Both models were found to destabilize the lamellar gel phases. DAET building blocks can be used to study rigidity/flexibility effects in supramolecular model systems. Photoswitchable DAET linkers perturb only up to 3–4 adjacent amino acid residues. Membrane-bound amphiphilic secondary structure elements exert a negligible influence on each other when linked by DAET. The rigidity of peptide conjugates affected their structural behavior only in the lipid gel phase.
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Affiliation(s)
- Oleg Babii
- Karlsruhe Institute of Technology, Institute of Organic Chemistry, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Sergii Afonin
- Karlsruhe Institute of Technology, Institute of Biological Interfaces (IBG-2), POB 3640, 76021 Karlsruhe, Germany
| | - Tim Schober
- Karlsruhe Institute of Technology, Institute of Organic Chemistry, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Igor V Komarov
- Taras Shevchenko National University of Kyiv, Institute of High Technologies, Volodymyrska 60, 01601 Kyiv, Ukraine.
| | - Anne S Ulrich
- Karlsruhe Institute of Technology, Institute of Organic Chemistry, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; Karlsruhe Institute of Technology, Institute of Biological Interfaces (IBG-2), POB 3640, 76021 Karlsruhe, Germany.
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8
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Chernykh AV, Radchenko DS, Chernykh AV, Kondratov IS, Tolmachova NA, Datsenko OP, Kurkunov MA, Zozulya SX, Kheylik YP, Bartels K, Daniliuc CG, Haufe G. Synthesis and Physicochemical Properties of 3-Fluorocyclobutylamines. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500746] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Fort DA, Woltering TJ, Alker AM, Bach T. An Intramolecular [2 + 2] Photocycloaddition Approach to Conformationally Restricted Bis-Pyrrolidines. J Org Chem 2014; 79:7152-61. [DOI: 10.1021/jo501302f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Diego A. Fort
- Lehrstuhl
für Organische Chemie I, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany
| | | | | | - Thorsten Bach
- Lehrstuhl
für Organische Chemie I, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany
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10
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Tkachenko AN, Mykhailiuk PK, Radchenko DS, Babii O, Afonin S, Ulrich AS, Komarov IV. Design and Synthesis of a Monofluoro-Substituted Aromatic Amino Acid as a Conformationally Restricted19F NMR Label for Membrane-Bound Peptides. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301737] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Chernykh AV, Radchenko DS, Grygorenko OO, Volochnyuk DM, Shishkina SV, Shishkin OV, Komarov IV. Conformationally restricted glutamic acid analogues: stereoisomers of 1-aminospiro[3.3]heptane-1,6-dicarboxylic acid. RSC Adv 2014. [DOI: 10.1039/c3ra47725h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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12
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Scheinpflug K, Nikolenko H, Komarov IV, Rautenbach M, Dathe M. What Goes around Comes around-A Comparative Study of the Influence of Chemical Modifications on the Antimicrobial Properties of Small Cyclic Peptides. Pharmaceuticals (Basel) 2013; 6:1130-44. [PMID: 24276422 PMCID: PMC3818835 DOI: 10.3390/ph6091130] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 08/26/2013] [Accepted: 09/02/2013] [Indexed: 01/26/2023] Open
Abstract
Tryptophan and arginine-rich cyclic hexapeptides of the type cyclo-RRRWFW combine high antibacterial activity with rapid cell killing kinetics, but show low toxicity in human cell lines. The peptides fulfil the structural requirements for membrane interaction such as high amphipathicity and cationic charge, but membrane permeabilisation, which is the most common mode of action of antimicrobial peptides (AMPs), could not be observed. Our current studies focus on elucidating a putative membrane translocation mechanism whereupon the peptides might interfere with intracellular processes. These investigations require particular analytical tools: fluorescent analogues and peptides bearing appropriate reactive groups were synthesized and characterized in order to be used in confocal laser scanning microscopy and HPLC analysis. We found that minimal changes in both the cationic and hydrophobic domain of the peptides in most cases led to significant reduction of antimicrobial activity and/or changes in the mode of action. However, we were able to identify two modified peptides which exhibited properties similar to those of the cyclic parent hexapeptide and are suitable for subsequent studies on membrane translocation and uptake into bacterial cells.
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Affiliation(s)
- Kathi Scheinpflug
- Leibniz-Institut für Molekulare Pharmakologie, Robert-Roessle-Str. 10, Berlin 13125, Germany; E-Mails: (K.S.); (H.N.)
| | - Heike Nikolenko
- Leibniz-Institut für Molekulare Pharmakologie, Robert-Roessle-Str. 10, Berlin 13125, Germany; E-Mails: (K.S.); (H.N.)
| | - Igor V. Komarov
- Institute of High Technologies, Kiev National Taras Shevchenko University, 64 Vladimirskaya st., Kiev 01033, Ukraine; E-Mail:
| | - Marina Rautenbach
- Department of Biochemistry, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa; E-Mail:
| | - Margitta Dathe
- Leibniz-Institut für Molekulare Pharmakologie, Robert-Roessle-Str. 10, Berlin 13125, Germany; E-Mails: (K.S.); (H.N.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +49-30-9479-3274; Fax: +49-30-9479-3269
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