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Corvaglia V, Wu J, Deepak D, Loos M, Huc I. Enhancing the Features of DNA Mimic Foldamers for Structural Investigations. Chemistry 2024; 30:e202303650. [PMID: 38193643 DOI: 10.1002/chem.202303650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/21/2023] [Accepted: 01/09/2024] [Indexed: 01/10/2024]
Abstract
DNA mimic foldamers based on aromatic oligoamide helices bearing anionic phosphonate side chains have been shown to bind to DNA-binding proteins sometimes orders of magnitude better than DNA itself. Here, we introduce new features in the DNA mimic foldamers to facilitate structural investigations of their interactions with proteins. Thirteen new foldamer sequences have been synthesized and characterized using NMR, circular dichroism, molecular modeling, and X-ray crystallography. The results show that foldamer helix handedness can be quantitatively biased by means of a single stereogenic center, that the foldamer structure can be made C2-symmetrical as in palindromic B-DNA sequences, and that associations between foldamer helices can be promoted utilizing dedicated C-terminal residues that act as sticky ends in B-DNA structures.
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Affiliation(s)
- Valentina Corvaglia
- Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, Munich, Germany
- Current address: Institute for Stem-Cell Biology, Regenerative Medicine and Innovative Therapies, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo (Italy) & Center for Nanomedicine and Tissue Engineering (CNTE), ASST Grande Ospedale Metropolitano Niguarda, 20162, Milan, Italy
| | - Jiaojiao Wu
- Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Deepak Deepak
- Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Manuel Loos
- Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Ivan Huc
- Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, Munich, Germany
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2
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Gupta N, Wilczek M, Dobrzycki L, Pulka-Ziach K. Structural Consequences of N‐methylation of N‐terminus in Oligourea Foldamers. Chempluschem 2022; 87:e202200199. [DOI: 10.1002/cplu.202200199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/22/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Naveen Gupta
- University of Warsaw: Uniwersytet Warszawski Faculty of Chemistry Pastuera 1 02-093 Warsaw POLAND
| | - Marcin Wilczek
- University of Warsaw: Uniwersytet Warszawski Faculty of Chemistry Pasteura 1 02-093 Warsaw POLAND
| | - Lukasz Dobrzycki
- University of Warsaw: Uniwersytet Warszawski Faculty of Chemistry Zwirki i Wigury 101 02-089 Warsaw POLAND
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3
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Abdildinova A, Kurth MJ, Gong Y. Solid‐Phase Synthesis of Peptidomimetics with Peptide Backbone Modifications. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100264] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Aizhan Abdildinova
- Innovative Drug Library Research Center Department of Chemistry College of Science Dongguk University 26, 3-ga, Pil-dong, Jung-gu Seoul 04620 Korea
| | - Mark J. Kurth
- Department of Chemistry University of California Davis CA 95616 USA
| | - Young‐Dae Gong
- Innovative Drug Library Research Center Department of Chemistry College of Science Dongguk University 26, 3-ga, Pil-dong, Jung-gu Seoul 04620 Korea
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4
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She F, Teng P, Peguero‐Tejada A, Wang M, Ma N, Odom T, Zhou M, Gjonaj E, Wojtas L, van der Vaart A, Cai J. De Novo Left‐Handed Synthetic Peptidomimetic Foldamers. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805184] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Fengyu She
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Peng Teng
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Alfredo Peguero‐Tejada
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Minghui Wang
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Ning Ma
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Timothy Odom
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Mi Zhou
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Erald Gjonaj
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Lukasz Wojtas
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Arjan van der Vaart
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Jianfeng Cai
- Department of Chemistry University of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
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5
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She F, Teng P, Peguero-Tejada A, Wang M, Ma N, Odom T, Zhou M, Gjonaj E, Wojtas L, van der Vaart A, Cai J. De Novo Left-Handed Synthetic Peptidomimetic Foldamers. Angew Chem Int Ed Engl 2018; 57:9916-9920. [PMID: 29889349 DOI: 10.1002/anie.201805184] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Indexed: 11/10/2022]
Abstract
The development of peptidomimetic helical foldamers with a wide repertoire of functions is of significant interest. Herein, we report the X-ray crystal structures of a series of homogeneous l-sulfono-γ-AA foldamers and elucidate their folding conformation at the atomic level. Single-crystal X-ray crystallography revealed that this class of oligomers fold into unprecedented dragon-boat-shaped and unexpected left-handed helices, which are stabilized by the 14-hydrogen-bonding pattern present in all sequences. These l-sulfono-γ-AApeptides have a helical pitch of 5.1 Å and exactly four side chains per turn, and the side chains lie perfectly on top of each other along the helical axis. 2D NMR spectroscopy, computational simulations, and CD studies support the folding conformation in solution. Our results provide a structural basis at the atomic level for the design of novel biomimetics with a precise arrangement of functional groups in three dimensions.
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Affiliation(s)
- Fengyu She
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
| | - Peng Teng
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
| | - Alfredo Peguero-Tejada
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
| | - Minghui Wang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
| | - Ning Ma
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
| | - Timothy Odom
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
| | - Mi Zhou
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
| | - Erald Gjonaj
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
| | - Arjan van der Vaart
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL, 33620, USA
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6
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Diemer V, Fischer L, Kauffmann B, Guichard G. Anion Recognition by Aliphatic Helical Oligoureas. Chemistry 2016; 22:15684-15692. [DOI: 10.1002/chem.201602481] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Vincent Diemer
- Université de Bordeaux, UMR 5248 CBMN; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33607 Pessac France
- CNRS; UMR 5248 CBMN; 33607 Pessac France
- UMR CNRS 8161; Pasteur Institute of Lille; Univ Lille; 1 rue du Professeur Calmette 59021 Lille France
| | - Lucile Fischer
- Université de Bordeaux, UMR 5248 CBMN; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33607 Pessac France
- CNRS; UMR 5248 CBMN; 33607 Pessac France
| | - Brice Kauffmann
- Université de Bordeaux, CNRS, UMS 3033, INSERM US001; Institut Européen de Chimie et de Biologie; 2 rue Robert Escarpit 33607 Pessac France
| | - Gilles Guichard
- Université de Bordeaux, UMR 5248 CBMN; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33607 Pessac France
- CNRS; UMR 5248 CBMN; 33607 Pessac France
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7
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Wechsel R, Raftery J, Cavagnat D, Guichard G, Clayden J. The meso
Helix: Symmetry and Symmetry-Breaking in Dynamic Oligourea Foldamers with Reversible Hydrogen-Bond Polarity. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604496] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Romina Wechsel
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - James Raftery
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Dominique Cavagnat
- ISM, UMR CNRS 5255; Université de Bordeaux; 351 cours de la Libération 33405 Talence France
| | - Gilles Guichard
- Université de Bordeaux, CBMN, UMR 5248; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33607 Pessac France
- CNRS, CBMN, UMR 5248; 33600 Pessac France
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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8
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Wechsel R, Raftery J, Cavagnat D, Guichard G, Clayden J. The meso
Helix: Symmetry and Symmetry-Breaking in Dynamic Oligourea Foldamers with Reversible Hydrogen-Bond Polarity. Angew Chem Int Ed Engl 2016; 55:9657-61. [DOI: 10.1002/anie.201604496] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Romina Wechsel
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - James Raftery
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Dominique Cavagnat
- ISM, UMR CNRS 5255; Université de Bordeaux; 351 cours de la Libération 33405 Talence France
| | - Gilles Guichard
- Université de Bordeaux, CBMN, UMR 5248; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33607 Pessac France
- CNRS, CBMN, UMR 5248; 33600 Pessac France
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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Douat C, Aisenbrey C, Antunes S, Decossas M, Lambert O, Bechinger B, Kichler A, Guichard G. A cell-penetrating foldamer with a bioreducible linkage for intracellular delivery of DNA. Angew Chem Int Ed Engl 2015; 54:11133-7. [PMID: 26246005 DOI: 10.1002/anie.201504884] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 07/04/2015] [Indexed: 12/21/2022]
Abstract
Despite significant advances in foldamer chemistry, tailored delivery systems based on foldamer architectures, which provide a high level of control over secondary structure, are curiously rare among non-viral technologies for transporting nucleic acids into cells. A potent pH-responsive, bioreducible cell-penetrating foldamer (CPF) was developed through covalent dimerization of a short (8-mer) amphipathic oligourea sequence bearing histidine-type units. This CPF exhibits a high capacity to assemble with pDNA and mediates efficient delivery of nucleic acids into the cell. Furthermore, it does not adversely affect cellular viability and was shown to compare favorably with a cognate peptide transfection agent based on His-rich sequences.
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Affiliation(s)
- Céline Douat
- Univ. Bordeaux, CBMN, UMR 5248, Institut Européen de Chimie et Biologie (IECB), 2 rue Robert Escarpit, 33607 Pessac (France).,CNRS, CBMN, UMR 5248, 33600 Pessac (France)
| | - Christopher Aisenbrey
- Membrane Biophysics and NMR, Chemistry Institute, University of Strasbourg-CNRS UMR7177, 4, Rue Blaise Pascal, 67008 Strasbourg (France)
| | - Stéphanie Antunes
- Univ. Bordeaux, CBMN, UMR 5248, Institut Européen de Chimie et Biologie (IECB), 2 rue Robert Escarpit, 33607 Pessac (France).,CNRS, CBMN, UMR 5248, 33600 Pessac (France)
| | - Marion Decossas
- CNRS, CBMN, UMR 5248, 33600 Pessac (France).,Univ. Bordeaux, CBMN, UMR 5248, All. Geoffroy Saint-Hilaire, 33600 Pessac (France)
| | - Olivier Lambert
- CNRS, CBMN, UMR 5248, 33600 Pessac (France).,Univ. Bordeaux, CBMN, UMR 5248, All. Geoffroy Saint-Hilaire, 33600 Pessac (France)
| | - Burkhard Bechinger
- Membrane Biophysics and NMR, Chemistry Institute, University of Strasbourg-CNRS UMR7177, 4, Rue Blaise Pascal, 67008 Strasbourg (France)
| | - Antoine Kichler
- Laboratoire "Vecteurs: Synthèse et Applications Thérapeutiques", UMR 7199 CNRS-Université de Strasbourg, Labex Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch cedex (France).
| | - Gilles Guichard
- Univ. Bordeaux, CBMN, UMR 5248, Institut Européen de Chimie et Biologie (IECB), 2 rue Robert Escarpit, 33607 Pessac (France). .,CNRS, CBMN, UMR 5248, 33600 Pessac (France).
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10
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Douat C, Aisenbrey C, Antunes S, Decossas M, Lambert O, Bechinger B, Kichler A, Guichard G. A Cell-Penetrating Foldamer with a Bioreducible Linkage for Intracellular Delivery of DNA. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504884] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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11
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Fremaux J, Mauran L, Pulka-Ziach K, Kauffmann B, Odaert B, Guichard G. α-Peptide-Oligourea Chimeras: Stabilization of Short α-Helices by Non-Peptide Helical Foldamers. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500901] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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12
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Fremaux J, Mauran L, Pulka‐Ziach K, Kauffmann B, Odaert B, Guichard G. α‐Peptide–Oligourea Chimeras: Stabilization of Short α‐Helices by Non‐Peptide Helical Foldamers. Angew Chem Int Ed Engl 2015; 54:9816-20. [DOI: 10.1002/anie.201500901] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 04/23/2015] [Indexed: 01/27/2023]
Affiliation(s)
- Juliette Fremaux
- Univ. Bordeaux, CBMN, UMR 5248, Institut Européen de Chimie et Biologie (IECB), 2 rue Robert Escarpit, 33607 Pessac (France)
- CNRS, CBMN, UMR 5248, 33600 Pessac (France)
- UREkA, Sarl, 2 rue Robert Escarpit, 33607 Pessac (France)
| | - Laura Mauran
- Univ. Bordeaux, CBMN, UMR 5248, Institut Européen de Chimie et Biologie (IECB), 2 rue Robert Escarpit, 33607 Pessac (France)
- CNRS, CBMN, UMR 5248, 33600 Pessac (France)
- UREkA, Sarl, 2 rue Robert Escarpit, 33607 Pessac (France)
| | - Karolina Pulka‐Ziach
- Univ. Bordeaux, CBMN, UMR 5248, Institut Européen de Chimie et Biologie (IECB), 2 rue Robert Escarpit, 33607 Pessac (France)
- CNRS, CBMN, UMR 5248, 33600 Pessac (France)
- Present address: Faculty of Chemistry, University of Warsaw, Pasteura 1, 02‐093 Warsaw (Poland)
| | - Brice Kauffmann
- Univ. Bordeaux, IECB, UMS 3033/US 001, 2 rue Escarpit, 33607 Pessac (France)
- CNRS, IECB, UMS 3033, 33600 Pessac (France)
- INSERM, IECB, US 001, 33600 Pessac (France)
| | - Benoit Odaert
- CNRS, CBMN, UMR 5248, 33600 Pessac (France)
- Univ. Bordeaux, CBMN, UMR 5248, All. Geoffroy Saint‐Hilaire, 33600 Pessac (France)
| | - Gilles Guichard
- Univ. Bordeaux, CBMN, UMR 5248, Institut Européen de Chimie et Biologie (IECB), 2 rue Robert Escarpit, 33607 Pessac (France)
- CNRS, CBMN, UMR 5248, 33600 Pessac (France)
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Nelli YR, Antunes S, Salaün A, Thinon E, Massip S, Kauffmann B, Douat C, Guichard G. Isosteric Substitutions of Urea to Thiourea and Selenourea in Aliphatic Oligourea Foldamers: Site-Specific Perturbation of the Helix Geometry. Chemistry 2014; 21:2870-80. [DOI: 10.1002/chem.201405792] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Indexed: 01/05/2023]
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André C, Legrand B, Moulat L, Wenger E, Didierjean C, Aubert E, Averlant-Petit MC, Martinez J, Amblard M, Calmes M. Mixed Oligoureas Based on Constrained Bicyclic and Acyclic β-Amino Acids Derivatives: On the Significance of the Subunit Configuration for Folding. Chemistry 2013; 19:16963-71. [DOI: 10.1002/chem.201302829] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Indexed: 01/03/2023]
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15
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Schneider TL, Halloran KT, Hillner JA, Conry RR, Linton BR. Application of H/D Exchange to Hydrogen Bonding in Small Molecules. Chemistry 2013; 19:15101-4. [DOI: 10.1002/chem.201302354] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Indexed: 11/09/2022]
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16
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Roy N, Buhler E, Lehn JM. The Tris-Urea Motif and Its Incorporation into Polydimethylsiloxane-Based Supramolecular Materials Presenting Self-Healing Features. Chemistry 2013; 19:8814-20. [DOI: 10.1002/chem.201203518] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 03/27/2013] [Indexed: 11/10/2022]
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Thorat VH, Ingole TS, Vijayadas KN, Nair RV, Kale SS, Ramesh VVE, Davis HC, Prabhakaran P, Gonnade RG, Gawade RL, Puranik VG, Rajamohanan PR, Sanjayan GJ. The Ant-Pro Reverse-Turn Motif. Structural Features and Conformational Characteristics. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201739] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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18
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Pendem N, Nelli YR, Douat C, Fischer L, Laguerre M, Ennifar E, Kauffmann B, Guichard G. Controlling Helix Formation in the γ-Peptide Superfamily: Heterogeneous Foldamers with Urea/Amide and Urea/Carbamate Backbones. Angew Chem Int Ed Engl 2013; 52:4147-51. [DOI: 10.1002/anie.201209838] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Indexed: 11/08/2022]
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19
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Pendem N, Nelli YR, Douat C, Fischer L, Laguerre M, Ennifar E, Kauffmann B, Guichard G. Controlling Helix Formation in the γ-Peptide Superfamily: Heterogeneous Foldamers with Urea/Amide and Urea/Carbamate Backbones. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209838] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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20
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Legrand B, André C, Wenger E, Didierjean C, Averlant-Petit MC, Martinez J, Calmes M, Amblard M. Robust Helix Formation in a New Family of Oligoureas Based on a Constrained Bicyclic Building Block. Angew Chem Int Ed Engl 2012; 51:11267-70. [DOI: 10.1002/anie.201205842] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Indexed: 01/22/2023]
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21
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Legrand B, André C, Wenger E, Didierjean C, Averlant-Petit MC, Martinez J, Calmes M, Amblard M. Robust Helix Formation in a New Family of Oligoureas Based on a Constrained Bicyclic Building Block. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205842] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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