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Jeong S, Zhang L, Kim J, Gong J, Choi J, Ok KM, Lee Y, Kwon S, Lee H. Conformational Adaptation of β‐Peptide Foldamers for the Formation of Metal–Peptide Frameworks. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202108364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Seoneun Jeong
- Center for Multiscale Chiral Architectures Department of Chemistry KAIST 291 Daehak-ro, Yuseong-gu Daejeon 34141 Korea
| | - Lianjin Zhang
- Center for Multiscale Chiral Architectures Department of Chemistry KAIST 291 Daehak-ro, Yuseong-gu Daejeon 34141 Korea
| | - Jaewook Kim
- Center for Multiscale Chiral Architectures Department of Chemistry KAIST 291 Daehak-ro, Yuseong-gu Daejeon 34141 Korea
| | - Jintaek Gong
- Center for Multiscale Chiral Architectures Department of Chemistry KAIST 291 Daehak-ro, Yuseong-gu Daejeon 34141 Korea
| | - Jonghoon Choi
- Department of Chemistry Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Korea
| | - Kang Min Ok
- Department of Chemistry Sogang University 35 Baekbeom-ro, Mapo-gu Seoul 04107 Korea
| | - Yunho Lee
- Department of Chemistry Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Korea
| | - Sunbum Kwon
- Department of Chemistry Chung-Ang University 84 Heukseok-ro, Dongjak-gu Seoul 06974 Korea
| | - Hee‐Seung Lee
- Center for Multiscale Chiral Architectures Department of Chemistry KAIST 291 Daehak-ro, Yuseong-gu Daejeon 34141 Korea
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2
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Jeong S, Zhang L, Kim J, Gong J, Choi J, Ok KM, Lee Y, Kwon S, Lee HS. Conformational Adaptation of β-Peptide Foldamers for the Formation of Metal-Peptide Frameworks. Angew Chem Int Ed Engl 2021; 61:e202108364. [PMID: 34469030 DOI: 10.1002/anie.202108364] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/22/2021] [Indexed: 11/06/2022]
Abstract
Metal-coordinated frameworks derived from small peptidic ligands have received much attention thanks to peptides' vast structural and functional diversity. Various peptides with partial conformational preferences have been used to build metal-peptide frameworks, however, the use of conformationally constrained β-peptide foldamers has not been explored yet. Herein we report the first metal-coordination-mediated assembly of β-peptide foldamers with 12-helical folding propensity. The coordination of Ag+ to the terminal pyridyl moieties afforded a set of metal-peptide frameworks with unique entangled topologies. Interestingly, formation of the network structures was accompanied by notable conformational distortions of the foldamer ligands. As the first demonstration of new metal-peptide frameworks built from modular β-peptide foldamers, we anticipate that this work will be an important benchmark for further structural evolution and mechanistic investigation.
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Affiliation(s)
- Seoneun Jeong
- Center for Multiscale Chiral Architectures, Department of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Lianjin Zhang
- Center for Multiscale Chiral Architectures, Department of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Jaewook Kim
- Center for Multiscale Chiral Architectures, Department of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Jintaek Gong
- Center for Multiscale Chiral Architectures, Department of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Jonghoon Choi
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea
| | - Kang Min Ok
- Department of Chemistry, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, 04107, Korea
| | - Yunho Lee
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea
| | - Sunbum Kwon
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Korea
| | - Hee-Seung Lee
- Center for Multiscale Chiral Architectures, Department of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
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3
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Illa O, Ospina J, Sánchez-Aparicio JE, Pulido X, Abengozar MÁ, Gaztelumendi N, Carbajo D, Nogués C, Rivas L, Maréchal JD, Royo M, Ortuño RM. Hybrid Cyclobutane/Proline-Containing Peptidomimetics: The Conformational Constraint Influences Their Cell-Penetration Ability. Int J Mol Sci 2021; 22:ijms22105092. [PMID: 34065025 PMCID: PMC8151717 DOI: 10.3390/ijms22105092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 01/22/2023] Open
Abstract
A new family of hybrid β,γ-peptidomimetics consisting of a repetitive unit formed by a chiral cyclobutane-containing trans-β-amino acid plus a Nα-functionalized trans-γ-amino-l-proline joined in alternation were synthesized and evaluated as cell penetrating peptides (CPP). They lack toxicity on the human tumoral cell line HeLa, with an almost negligible cell uptake. The dodecapeptide showed a substantial microbicidal activity on Leishmania parasites at 50 µM but with a modest intracellular accumulation. Their previously published γ,γ-homologues, with a cyclobutane γ-amino acid, showed a well-defined secondary structure with an average inter-guanidinium distance of 8–10 Å, a higher leishmanicidal activity as well as a significant intracellular accumulation. The presence of a very rigid cyclobutane β-amino acid in the peptide backbone precludes the acquisition of a defined conformation suitable for their cell uptake ability. Our results unveiled the preorganized charge-display as a relevant parameter, additional to the separation among the charged groups as previously described. The data herein reinforce the relevance of these descriptors in the design of CPPs with improved properties.
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Affiliation(s)
- Ona Illa
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (J.O.); (J.-E.S.-A.); (J.-D.M.)
- Correspondence: (O.I.); (M.R.); (R.M.O.)
| | - Jimena Ospina
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (J.O.); (J.-E.S.-A.); (J.-D.M.)
| | - José-Emilio Sánchez-Aparicio
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (J.O.); (J.-E.S.-A.); (J.-D.M.)
| | - Ximena Pulido
- Institut de Recerca Biomèdica, c/Baldiri Reixac 10, 08028 Barcelona, Spain;
- Centro de Investigación Biomédica en Red Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), c/ Jordi Girona 18–26, 08034 Barcelona, Spain
- Departamento de Química, Universidad del Tolima, Santa Helena Parte Alta, Ibagué 730006299, Tolima, Colombia
| | - María Ángeles Abengozar
- Centro de Investigaciones Biológicas Margarita Salas, c/ Ramiro de Maeztu 9, CSIC, 28040 Madrid, Spain; (M.Á.A.); (L.R.)
| | - Nerea Gaztelumendi
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.G.); (C.N.)
| | - Daniel Carbajo
- Institut de Química Avançada de Catalunya (IQAC-CSIC), c/ Jordi Girona, 18-26, 08034 Barcelona, Spain;
| | - Carme Nogués
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.G.); (C.N.)
| | - Luis Rivas
- Centro de Investigaciones Biológicas Margarita Salas, c/ Ramiro de Maeztu 9, CSIC, 28040 Madrid, Spain; (M.Á.A.); (L.R.)
| | - Jean-Didier Maréchal
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (J.O.); (J.-E.S.-A.); (J.-D.M.)
| | - Miriam Royo
- Centro de Investigación Biomédica en Red Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), c/ Jordi Girona 18–26, 08034 Barcelona, Spain
- Institut de Química Avançada de Catalunya (IQAC-CSIC), c/ Jordi Girona, 18-26, 08034 Barcelona, Spain;
- Correspondence: (O.I.); (M.R.); (R.M.O.)
| | - Rosa M. Ortuño
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (J.O.); (J.-E.S.-A.); (J.-D.M.)
- Correspondence: (O.I.); (M.R.); (R.M.O.)
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Ortuño RM. Carbocycle-Based Organogelators: Influence of Chirality and Structural Features on Their Supramolecular Arrangements and Properties. Gels 2021; 7:gels7020054. [PMID: 34062755 PMCID: PMC8162357 DOI: 10.3390/gels7020054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 12/31/2022] Open
Abstract
The rational design and engineer of organogel-based smart materials and stimuli-responsive materials with tuned properties requires the control of the non-covalent forces driving the hierarchical self-assembly. Chirality, as well as cis/trans relative configuration, also plays a crucial role promoting the morphology and characteristics of the aggregates. Cycloalkane derivatives can provide chiral chemical platforms allowing the incorporation of functional groups and hydrophobic structural units able for a convenient molecular stacking leading to gels. Restriction of the conformational freedom imposed by the ring strain is also a contributing issue that can be modulated by the inclusion of flexible segments. In addition, donor/acceptor moieties can also be incorporated favoring the interactions with light or with charged species. This review offers a perspective on the abilities and properties of carbocycle-based organogelators starting from simple cycloalkane derivatives, which were the key to establish the basis for an effective self-assembling, to sophisticated polycyclic compounds with manifold properties and applications.
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Affiliation(s)
- Rosa M Ortuño
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
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5
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Imani Z, Guillot R, Declerck V, Aitken DJ. Local versus Global Control of Helical Folding in β-Peptide Segments Using Hydrazino Turns. J Org Chem 2020; 85:6165-6171. [PMID: 32233505 DOI: 10.1021/acs.joc.0c00305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Rational control of the self-organization of β-peptides sequences to adopt regular secondary structures is an important challenge in peptidomimetic foldamer science. By replacing the N- and C-terminal residues of homooligomers of trans-2-aminocyclobutanecarboxylic acid (tACBC)n with N-aminoazetidine-2-carboxylic acid, an 8-helical topology is shown to dominate for sequences up to n = 7. This constitutes an atomic-level tool to override locally the preferred global 12-helix secondary structure of the corresponding tACBC homooligomers of the same length.
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Affiliation(s)
- Zeynab Imani
- Université Paris-Saclay, CNRS, ICMMO, 91405 Orsay, France
| | - Régis Guillot
- Université Paris-Saclay, CNRS, ICMMO, 91405 Orsay, France
| | | | - David J Aitken
- Université Paris-Saclay, CNRS, ICMMO, 91405 Orsay, France
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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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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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8
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Amabili P, Calvaresi M, Martelli G, Orena M, Rinaldi S, Sgolastra F. Imidazolidinone-Tethered α-Hydrazidopeptides - Synthesis and Conformational Investigation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801427] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Paolo Amabili
- Department of Life and Environmental Sciences; Polytechnic University of Marche; Via Brecce Bianche 60131 Ancona Italy
| | - Matteo Calvaresi
- Department of Chemistry “G. Ciamician”; Alma Mater Studiorum University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Gianluca Martelli
- Department of Life and Environmental Sciences; Polytechnic University of Marche; Via Brecce Bianche 60131 Ancona Italy
| | - Mario Orena
- Department of Life and Environmental Sciences; Polytechnic University of Marche; Via Brecce Bianche 60131 Ancona Italy
| | - Samuele Rinaldi
- Department of Life and Environmental Sciences; Polytechnic University of Marche; Via Brecce Bianche 60131 Ancona Italy
| | - Federica Sgolastra
- Department of Life and Environmental Sciences; Polytechnic University of Marche; Via Brecce Bianche 60131 Ancona Italy
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9
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Cyclobutane-based peptides/terpyridine conjugates: Their use in metal catalysis and as functional organogelators. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.10.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Declerck V, Aitken DJ. Strategic C to N Replacement in β-Peptides: Atomic Level Control of Helical Folding. J Org Chem 2018; 83:8793-8800. [DOI: 10.1021/acs.joc.8b01096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Valérie Declerck
- CP3A Organic Synthesis Group, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris−Saclay, Bât 420, 15 rue Georges Clemenceau, 91405 Orsay Cedex, France
| | - David J. Aitken
- CP3A Organic Synthesis Group, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris−Saclay, Bât 420, 15 rue Georges Clemenceau, 91405 Orsay Cedex, France
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11
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Illa O, Porcar-Tost O, Robledillo C, Elvira C, Nolis P, Reiser O, Branchadell V, Ortuño RM. Stereoselectivity of Proline/Cyclobutane Amino Acid-Containing Peptide Organocatalysts for Asymmetric Aldol Additions: A Rationale. J Org Chem 2017; 83:350-363. [PMID: 29186658 DOI: 10.1021/acs.joc.7b02745] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Several α,β,α- or α,γ,α-tripeptides, consisting of a central cyclobutane β- or γ-amino acid being flanked by two d- or l-proline residues, have been synthesized and tested as organocatalysts in asymmetric aldol additions. High yields and enantioselectivities have been achieved with α,γ,α-tripeptides, being superior to peptides containing a cyclobutane β-amino acid residue. This is probably due to their high rigidity, which hinders some of the peptide catalysts to adopt the proper active conformation. This reasoning correlates with the major conformation of the peptides in the ground state, as suggested by 1H NMR and computational calculations. The configuration of the aldol products is controlled by the proline chirality, and consequently, the R/S configuration of aldol products can be tuned by the use of either commercially available d- or l-proline. The enantioselectivity in the aldol reactions is reversed if the reactions are carried out in the presence of water or other protic solvents such as methanol. Spectroscopic and theoretical investigations revealed that this effect is not the consequence of conformational changes in the catalyst but rather caused by the participation of a water molecule in the rate determining transition state, in such a way that the preferential nucleophilic attack is oriented to the opposite enantiotopic aldehyde face.
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Affiliation(s)
- Ona Illa
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Oriol Porcar-Tost
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Carme Robledillo
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Carlos Elvira
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Pau Nolis
- Servei de Ressonància Magnètica Nuclear, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Oliver Reiser
- Institut für Organische Chemie, Universität Regensburg , Universitätsstr. 31, 95053 Regensburg, Germany
| | - Vicenç Branchadell
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Rosa M Ortuño
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
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12
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Illa O, Olivares JA, Nolis P, Ortuño RM. The relevance of the relative configuration in the folding of hybrid peptides containing β-cyclobutane amino acids and γ-amino- l -proline residues. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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13
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C-3 epimers of sugar amino acids as foldameric building blocks: improved synthesis, useful derivatives, coupling strategies. Amino Acids 2016; 49:223-240. [PMID: 27803987 DOI: 10.1007/s00726-016-2346-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/04/2016] [Indexed: 10/20/2022]
Abstract
To obtain key sugar derivatives for making homooligomeric foldamers or α/β-chimera peptides, economic and multigram scale synthetic methods were to be developed. Though described in the literature, the cost-effective making of both 3-amino-3-deoxy-ribofuranuronic acid (H-t X-OH) and its C-3 epimeric stereoisomer, the 3-amino-3-deoxy-xylofuranuronic acid (H-c X-OH) from D-glucose is described here. The present synthetic route elaborated is (1) appropriate for large-scale synthesis; (2) reagent costs reduced (e.g. by a factor of 400); (3) yields optimized are ~80% or higher for all six consecutive steps concluding -t X- or -c X- and (4) reaction times shortened. Thus, a new synthetic route step-by-step optimized for yield, cost, time and purification is given both for D-xylo and D-ribo-amino-furanuronic acids using sustainable chemistry (e.g. less chromatography with organic solvents; using continuous-flow reactor). Our study encompasses necessary building blocks (e.g. -X-OMe, -X-OiPr, -X-NHMe, Fmoc-X-OH) and key coupling reactions making -Aaa-t X-Aaa- or -Aaa-t X-t X-Aaa- type "inserts". Completed for both stereoisomers of X, including the newly synthesized Fmoc-c X-OH, producing longer oligomers for drug design and discovery is more of a reality than a wish.
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Kolleth A, Lumbroso A, Tanriver G, Catak S, Sulzer-Mossé S, De Mesmaeker A. New access to quaternary aminocyclobutanes via nucleophilic addition on cyclobutaniminium salts. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.097] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Sorrenti A, Illa O, Ortuño RM, Pons R. Chiral Cyclobutane β-Amino Acid-Based Amphiphiles: Influence of Cis/Trans Stereochemistry on Condensed Phase and Monolayer Structure. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:6977-6984. [PMID: 27327214 DOI: 10.1021/acs.langmuir.6b01461] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
New diastereomeric nonionic amphiphiles, cis- and trans-1, based on an optically pure cyclobutane β-amino ester moiety have been investigated to gain insight into the influence exerted by cis/trans stereochemistry and stereochemical constraints on the physicochemical behavior, molecular organization, and morphology of their Langmuir monolayers and dry solid states. All these features are relevant to the rational design of functional materials. trans-1 showed a higher thermal stability than cis-1. For the latter, a higher fluidity of its monolayers was observed when compared with the films formed by trans-1 whose BAM images revealed the formation of condensed phase domains with a dendritic shape, which are chiral, and all of them feature the same chiral sign. Although the formation of LC phase domains was not observed by BAM for cis-1, compact dendritic crystals floating on a fluid subphase were observed beyond the collapse, which are attributable to multilayered 3D structures. These differences can be explained by the formation of hydrogen bonds between the amide groups of consecutive molecules allowing the formation of extended chains for trans-1 giving ordered arrangements. However, for cis-1, this alignment coexists with another one that allows the simultaneous formation of two hydrogen bonds between the amide and the ester groups of adjacent molecules. In addition, the propensity to form intramolecular hydrogen bonds must be considered to justify the formation of different patterns of hydrogen bonding and, consequently, the formation of less ordered phases. Those characteristics are congruent also with the results obtained from SAXS-WAXS experiments which suggest a more bent configuration for cis-1 than for trans-1.
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Affiliation(s)
- Alessandro Sorrenti
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Ona Illa
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Rosa M Ortuño
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Ramon Pons
- Departament de Tecnologia Química i de Tensioactius, Institut de Química Avançada de Catalunya, IQAC-CSIC , c/Jordi Girona 18-26, 08034 Barcelona, Spain
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16
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Sans M, Illa O, Ortuño R. Organobridged silsesquioxanes based on cyclobutane diamines: influence of the stereochemistry on the morphology of the materials. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Alauddin M, Gloaguen E, Brenner V, Tardivel B, Mons M, Zehnacker‐Rentien A, Declerck V, Aitken DJ. Intrinsic Folding Proclivities in Cyclic β‐Peptide Building Blocks: Configuration and Heteroatom Effects Analyzed by Conformer‐Selective Spectroscopy and Quantum Chemistry. Chemistry 2015; 21:16479-93. [DOI: 10.1002/chem.201501794] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Mohammad Alauddin
- CEA, Laboratoire Interactions Dynamique et Lasers (LIDyL), Bât. 522, 91191 Gif‐sur‐Yvette (France)
- CNRS, Laboratoire Francis Perrin URA 2453, 91191 Gif‐sur‐Yvette (France)
- Current address: Department of Chemistry, University of Dhaka, Dhaka‐1000 (Bangladesh)
| | - Eric Gloaguen
- CEA, Laboratoire Interactions Dynamique et Lasers (LIDyL), Bât. 522, 91191 Gif‐sur‐Yvette (France)
- CNRS, Laboratoire Francis Perrin URA 2453, 91191 Gif‐sur‐Yvette (France)
| | - Valérie Brenner
- CEA, Laboratoire Interactions Dynamique et Lasers (LIDyL), Bât. 522, 91191 Gif‐sur‐Yvette (France)
- CNRS, Laboratoire Francis Perrin URA 2453, 91191 Gif‐sur‐Yvette (France)
| | - Benjamin Tardivel
- CEA, Laboratoire Interactions Dynamique et Lasers (LIDyL), Bât. 522, 91191 Gif‐sur‐Yvette (France)
- CNRS, Laboratoire Francis Perrin URA 2453, 91191 Gif‐sur‐Yvette (France)
| | - Michel Mons
- CEA, Laboratoire Interactions Dynamique et Lasers (LIDyL), Bât. 522, 91191 Gif‐sur‐Yvette (France)
- CNRS, Laboratoire Francis Perrin URA 2453, 91191 Gif‐sur‐Yvette (France)
| | | | - Valérie Declerck
- CP3A Organic Synthesis Group, ICMMO, UMR 8182, Université Paris Sud, Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex (France)
| | - David J. Aitken
- CP3A Organic Synthesis Group, ICMMO, UMR 8182, Université Paris Sud, Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex (France)
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Sorrenti A, Illa O, Pons R, Ortuño RM. Chiral Cyclobutane β-Amino Acid-Based Amphiphiles: Influence of Cis/Trans Stereochemistry on Solution Self-Aggregation and Recognition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:9608-9618. [PMID: 26286019 DOI: 10.1021/acs.langmuir.5b02700] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Novel diastereomeric anionic amphiphiles based on the rigid cyclobutane β-amino acid scaffold have been synthesized and deeply investigated with the aim of generating new functional supramolecular architectures on the basis of the rational design of original amphiphilic molecules and the control of their self-assembly. The main interest has been focused on the effect that cis/trans stereochemistry exerts on their molecular organization and recognition. In diluted solutions, the relative stereochemistry mainly influences the headgroup solvation and anionic-charge stabilization, i.e., better stabilized in the cis diastereoisomer due to intramolecular hydrogen-bonding and/or charge-dipole interactions. This provokes differences in their physicochemical behavior (pKa, cmc, conductivity) as well as in the structural parameters of the spherical micelles formed. Although both diastereoisomers form fibers that evolve with time from the spherical micelles, they display markedly different morphology and kinetics of formation. In the lyotropic liquid crystal domain, the greatest differences are observed at the highest concentrations and can be ascribed to different hydrogen-bonding and molecular packing imposed by the stereochemical constraints. Remarkably, the spherical micelles of the two anionic surfactants show dramatically diverse enantioselection ability for bilirubin enantiomers. In addition, both the surfactants form heteroaggregates with bilirubin at submicellar concentrations but with a different expression of supramolecular chirality. This points out that the unlike relative configuration of the two surfactants influences their chiral recognition ability as well as the fashion in which chirality is expressed at the supramolecular level by controlling the molecular organization in both micellar aggregates and surfactant/bilirubin heteroaggregates. All these differential features can be appropriate and useful for the design and development of new soft materials with predictable and tunable properties and reveal the cyclobutane motif as a valuable scaffold for the preparation of new amphiphiles.
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Affiliation(s)
- Alessandro Sorrenti
- Departament de Química, Universitat Autònoma de Barcelona , Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Ona Illa
- Departament de Química, Universitat Autònoma de Barcelona , Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Ramon Pons
- Departament de Tecnologia Química i de Tensioactius, Institut de Química Avançada de Catalunya, IQAC-CSIC , c/Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Rosa M Ortuño
- Departament de Química, Universitat Autònoma de Barcelona , Cerdanyola del Vallès, 08193 Barcelona, Spain
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Altmayer-Henzien A, Declerck V, Farjon J, Merlet D, Guillot R, Aitken DJ. Fine Tuning of β-Peptide Foldamers: a Single Atom Replacement Holds Back the Switch from an 8-Helix to a 12-Helix. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/anie.201504126] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Altmayer-Henzien A, Declerck V, Farjon J, Merlet D, Guillot R, Aitken DJ. Fine Tuning of β-Peptide Foldamers: a Single Atom Replacement Holds Back the Switch from an 8-Helix to a 12-Helix. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504126] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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21
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Grison CM, Robin S, Aitken DJ. The discovery of 9/8-ribbons, β/γ-peptides with curved shapes governed by a combined configuration-conformation code. Chem Commun (Camb) 2015; 51:16233-6. [DOI: 10.1039/c5cc07136d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The design of a β/γ-peptide reveals an unprecedented 9/8-ribbon whose curvature depends on the β-residue configuration and the γ-residue conformation.
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Affiliation(s)
- Claire M. Grison
- CP3A Organic Synthesis Group
- ICMMO-UMR 8182
- Université Paris-Sud
- Université Paris-Saclay
- 91405 Orsay cedex
| | - Sylvie Robin
- CP3A Organic Synthesis Group
- ICMMO-UMR 8182
- Université Paris-Sud
- Université Paris-Saclay
- 91405 Orsay cedex
| | - David J. Aitken
- CP3A Organic Synthesis Group
- ICMMO-UMR 8182
- Université Paris-Sud
- Université Paris-Saclay
- 91405 Orsay cedex
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22
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Berlicki L, Kaske M, Gutiérrez-Abad R, Bernhardt G, Illa O, Ortuño RM, Cabrele C, Buschauer A, Reiser O. Replacement of Thr32 and Gln34 in the C-terminal neuropeptide Y fragment 25-36 by cis-cyclobutane and cis-cyclopentane β-amino acids shifts selectivity toward the Y(4) receptor. J Med Chem 2013; 56:8422-31. [PMID: 24090364 DOI: 10.1021/jm4008505] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Neuropeptide Y (NPY) and pancreatic polypeptide (PP) control central and peripheral processes by activating the G protein coupled receptors YxR (x = 1, 2, 4, 5). We present analogs of the C-terminal fragments 25-36 and 32-36 of NPY and PP containing (1R,2S)-cyclobutane (βCbu) or (1R,2S)-cyclopentane (βCpe) β-amino acids, which display exclusively Y4R affinity. In particular, [βCpe(34)]-NPY-(25-36) is a Y4R selective partial agonist (EC50 41 ± 6 nM, Emax 71%) that binds Y4R with a Ki of 10 ± 2 nM and a selectivity >100-fold relative to Y1R and Y2R and >50-fold relative to Y5R. Comparably, [Y(32), βCpe(34)]-NPY(PP)-(32-36) selectively binds and activates Y4R (EC50 94 ± 21 nM, Emax 73%). The NMR structure of [βCpe(34)]-NPY-(25-36) in dodecylphosphatidylcholine micelles shows a short helix at residues 27-32, while the C-terminal segment R(33)βCpe(34)R(35)Y(36) is extended. The biological properties of the βCbu- or βCpe-containing NPY and PP C-terminal fragments encourage the future application of these β-amino acids in the synthesis of selective Y4R ligands.
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Affiliation(s)
- Lukasz Berlicki
- Institute of Organic Chemistry, University of Regensburg , Universitätsstrasse 31, 93053 Regensburg, Germany
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de Nanteuil F, Waser J. Synthesis of aminocyclobutanes by iron-catalyzed [2+2] cycloaddition. Angew Chem Int Ed Engl 2013; 52:9009-13. [PMID: 23868610 DOI: 10.1002/anie.201303803] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Florian de Nanteuil
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
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de Nanteuil F, Waser J. Synthesis of Aminocyclobutanes by Iron-Catalyzed [2+2] Cycloaddition. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303803] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Foldamers of β-peptides: conformational preference of peptides formed by rigid building blocks. The first MI-IR spectra of a triamide nanosystem. Amino Acids 2013; 45:957-73. [DOI: 10.1007/s00726-013-1552-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 06/28/2013] [Indexed: 10/26/2022]
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26
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Aguilera J, Cobos JA, Gutiérrez-Abad R, Acosta C, Nolis P, Illa O, Ortuño RM. The Role of the Chiralcis-1,3-Disubstituted 2,2-Dimethylcyclobutane Motif in the Conformational Bias of Several Types of γ-Peptides. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300066] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Celis S, Nolis P, Illa O, Branchadell V, Ortuño RM. Low-molecular-weight gelators consisting of hybrid cyclobutane-based peptides. Org Biomol Chem 2013; 11:2839-46. [PMID: 23493972 DOI: 10.1039/c3ob27347d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Some hybrid tetrapeptides consisting of (1R,2S)-2-aminocyclobutane-1-carboxylic acid and glycine, β-alanine, or γ-aminobutyric acid (GABA) joined in alternation, compounds 1-3, respectively, have been investigated to gain information on the non-covalent interactions responsible for their self-assembly to form ordered aggregates, as well as on parameters such as their morphology and size. All three peptides formed nice gels in many organic solvents and significant difference in their behaviour was not observed. Scanning electron microscopy (SEM) and circular dichroism (CD) pointed out that peptide 1, which contains the shortest C2 linear residue, presented the most defined fibril network and afforded nanoscale helical aggregates. Tetrapeptide 3, with C4 linear residues in its structure, also showed bundles of fibres whereas a homogeneous spherulitic network was observed for tetrapeptide 2, with a C3 spacer between cyclobutane residues. Computational calculations for 1 allowed us to model the self-assembly of the molecules and suggested a head-to-head arrangement to give helical structures corresponding to hydrogen-bonded single chains. These features were corroborated by a high-resolution NMR spectroscopy study of the dynamics of the gelation process in toluene-d8 which evidenced that molecules self-assemble to afford ordered aggregates with a supramolecular chirality.
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Affiliation(s)
- Sergi Celis
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
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