1
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Szatko M, Forysiak W, Kozub S, Andruniów T, Szweda R. Revealing the Effect of Stereocontrol on Intermolecular Interactions between Abiotic, Sequence-Defined Polyurethanes and a Ligand. ACS Biomater Sci Eng 2024; 10:3727-3738. [PMID: 38804015 PMCID: PMC11167595 DOI: 10.1021/acsbiomaterials.4c00456] [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: 03/07/2024] [Revised: 04/26/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024]
Abstract
The development of precision polymer synthesis has facilitated access to a diverse library of abiotic structures wherein chiral monomers are positioned at specific locations within macromolecular chains. These structures are anticipated to exhibit folding characteristics similar to those of biotic macromolecules and possess comparable functionalities. However, the extensive sequence space and numerous variables make selecting a sequence with the desired function challenging. Therefore, revealing sequence-function dependencies and developing practical tools are necessary to analyze their conformations and molecular interactions. In this study, we investigate the effect of stereochemistry, which dictates the spatial location of backbone and pendant groups, on the interaction between sequence-defined oligourethanes and bisphenol A ligands. Various methods are explored to analyze the receptor-like properties of model oligomers and the ligand. The accuracy of molecular dynamics simulations and experimental techniques is assessed to uncover the impact of discrete changes in stereochemical arrangements on the structures of the resulting complexes and their binding strengths. Detailed computational investigations providing atomistic details show that the formed complexes demonstrate significant structural diversity depending on the sequence of stereocenters, thus affecting the oligomer-ligand binding strength. Among the tested techniques, the fluorescence spectroscopy data, fitted to the Stern-Volmer equation, are consistently aligned with the calculations, thus validating the developed simulation methodology. The developed methodology opens a way to engineer the structure of sequence-defined oligomers with receptor-like functionality to explore their practical applications, e.g., as sensory materials.
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Affiliation(s)
- Maksymilian Szatko
- Łukasiewicz
Research Network—PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wroclaw, Poland
- Department
of Chemistry, Wrocław University of
Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Weronika Forysiak
- Łukasiewicz
Research Network—PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wroclaw, Poland
- Faculty
of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Sara Kozub
- Łukasiewicz
Research Network—PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wroclaw, Poland
| | - Tadeusz Andruniów
- Department
of Chemistry, Wrocław University of
Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Roza Szweda
- Łukasiewicz
Research Network—PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wroclaw, Poland
- Center
for Advanced Technologies, Adam Mickiewicz
University, Uniwersytetu Poznańskiego 8, 61-614 Poznan, Poland
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2
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Díaz-Casado L, Villacampa A, Corzana F, Jiménez-Barbero J, Gómez AM, Santana AG, Asensio JL. Illuminating a Solvent-Dependent Hierarchy for Aromatic CH/π Complexes with Dynamic Covalent Glyco-Balances. JACS AU 2024; 4:476-490. [PMID: 38425929 PMCID: PMC10900200 DOI: 10.1021/jacsau.3c00592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/11/2023] [Accepted: 12/11/2023] [Indexed: 03/02/2024]
Abstract
CH/π interactions are prevalent among aromatic complexes and represent invaluable tools for stabilizing well-defined molecular architectures. Their energy contributions are exceptionally sensitive to various structural and environmental factors, resulting in a context-dependent nature that has led to conflicting findings in the scientific literature. Consequently, a universally accepted hierarchy for aromatic CH/π interactions has remained elusive. Herein, we present a comprehensive experimental investigation of aromatic CH/π complexes, employing a novel approach that involves isotopically labeled glyco-balances generated in situ. This innovative strategy not only allows us to uncover thermodynamic insights but also delves into the often less-accessible domain of kinetic information. Our analyses have yielded more than 180 new free energy values while considering key factors such as solvent properties, the interaction geometry, and the presence and nature of accompanying counterions. Remarkably, the obtained results challenge conventional wisdom regarding the stability order of common aromatic complexes. While it was believed that cationic CH/π interactions held the highest strength, followed by polarized CH/π, nonpolarized CH/π, and finally anionic CH/π interactions, our study reveals that this hierarchy can be subverted depending on the environment. Indeed, the performance of polarized CH/π interactions can match or even outcompete that of cationic CH/π interactions making them a more reliable stabilization strategy across the entire spectrum of solvent polarity. Overall, our results provide valuable guidelines for the selection of optimal interacting partners in every chemical environment, allowing the design of tailored aromatic complexes with applications in supramolecular chemistry, organocatalysis, and/or material sciences.
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Affiliation(s)
- Laura Díaz-Casado
- Departamento
de Química Bio-Orgánica, Instituto de Química
Orgánica General (IQOG-CSIC), Consejo
Superior de Investigaciones Científicas (CSIC), 28006 Madrid, Spain
| | - Alejandro Villacampa
- Departamento
de Química Bio-Orgánica, Instituto de Química
Orgánica General (IQOG-CSIC), Consejo
Superior de Investigaciones Científicas (CSIC), 28006 Madrid, Spain
| | - Francisco Corzana
- Departamento
de Química, Centro de Investigación en Síntesis
Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Jesús Jiménez-Barbero
- Basque
Researchand Technology Alliance (BRTA), CIC bioGUNE, 48170 Derio, Spain
- Basque
Foundation for Science, Ikerbasque, 48009 Bilbao, Spain
- Centro
de Investigación Biomédica En Red de Enfermedades Respiratorias, 28029 Madrid, Spain
| | - Ana M. Gómez
- Departamento
de Química Bio-Orgánica, Instituto de Química
Orgánica General (IQOG-CSIC), Consejo
Superior de Investigaciones Científicas (CSIC), 28006 Madrid, Spain
| | - Andrés G. Santana
- Department
of Chemistry of Natural Products and Bioactive Synthetics, Instituto de Productos Naturales y Agrobiología
(IPNA-CSIC), San Cristóbal
de La Laguna, Santa Cruz de Tenerife 38206, Spain
| | - Juan Luis Asensio
- Departamento
de Química Bio-Orgánica, Instituto de Química
Orgánica General (IQOG-CSIC), Consejo
Superior de Investigaciones Científicas (CSIC), 28006 Madrid, Spain
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3
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Song G, Lee S, Jeong KS. Complexation-driven assembly of imine-linked helical receptors showing adaptive folding and temperature-dependent guest selection. Nat Commun 2024; 15:1501. [PMID: 38374171 PMCID: PMC10876968 DOI: 10.1038/s41467-024-45322-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/22/2024] [Indexed: 02/21/2024] Open
Abstract
The development of synthetic receptors capable of selectively binding guests with diverse structures and multiple functional groups poses a significant challenge. Here, we present the efficient assembly of foldamer-based receptors for monosaccharides, utilising the principles of complexation-induced equilibrium shifting and adaptive folding. Diimine 4 can be quantitatively assembled from smaller components when D-galactose is added as a guest among monosaccharides we examined. During this assembly, dual complexation-induced equilibrium shifts toward both the formation of diimine 4 and the conversion of D-galactose into α-D-galactofuranose are observed. Diimine 6 is quantitatively assembled in the presence of two different guests, methyl β-D-glucopyranoside and methyl β-D-galactopyranoside, resulting in the formation of two dimeric complexes: (6-MP)2⊃(methyl β-D-glucopyranoside)2 and (6-MM)2⊃(methyl β-D-galactopyranoside∙2H2O)2, respectively. These two complexes exhibit distinct folding structures with domain-swapping cavities depending on the bound guest and temperature. Interestingly, (6-MM)2⊃(methyl β-D-galactopyranoside∙2H2O)2 is exclusively formed at lower temperatures, while (6-MP)2⊃(methyl β-D-glucopyranoside)2 is only formed at higher temperatures.
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Affiliation(s)
- Geunmoo Song
- Department of Chemistry, Yonsei University, Seoul, 03722, South Korea
| | - Seungwon Lee
- Department of Chemistry, Yonsei University, Seoul, 03722, South Korea
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul, 03722, South Korea.
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4
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Yang X, Jiang W. Enantioselective Recognition of Functional Organic Molecules in Water by Biomimetic Macrocyclic Hosts. J Am Chem Soc 2024; 146:3900-3909. [PMID: 38294833 DOI: 10.1021/jacs.3c11492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Enantioselective recognition of functional organic molecules in water is routine in nature but remains a formidable challenge for synthetic hosts. Here, we reported two pairs of chiral naphthotubes with chiral centers located in the neighborhood of the inward-directing amide groups. These naphthotubes, with a chiral twisted cavity, show highly enantioselective recognition in water to a wide scope of organic molecules (90 chiral guests). The highest enantioselectivity of 34 was achieved with neotame. Small differences between all of the noncovalent interactions shielded in the hydrophobic cavity were revealed to be responsible for the enantioselective recognition in water, which is different from the traditional views. Moreover, these hosts can differentiate the analogues of aspartame using fluorescence spectroscopy. These chiral naphthotubes have made unprecedented achievements in enantioselective recognition, providing the basis for their applications in chiral analysis and separations.
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Affiliation(s)
- Xiran Yang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology (SUSTech), Xueyuan Blvd 1088, Shenzhen 518055, China
| | - Wei Jiang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology (SUSTech), Xueyuan Blvd 1088, Shenzhen 518055, China
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5
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Wang SM, Wang YF, Huang L, Zheng LS, Nian H, Zheng YT, Yao H, Jiang W, Wang X, Yang LP. Chiral recognition of neutral guests by chiral naphthotubes with a bis-thiourea endo-functionalized cavity. Nat Commun 2023; 14:5645. [PMID: 37704639 PMCID: PMC10499783 DOI: 10.1038/s41467-023-41390-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 09/04/2023] [Indexed: 09/15/2023] Open
Abstract
Developing chiral receptors with an endo-functionalized cavity for chiral recognition is of great significance in the field of molecular recognition. This study presents two pairs of chiral naphthotubes containing a bis-thiourea endo-functionalized cavity. Each chiral naphthotube has two homochiral centers which were fixed adjacent to the thiourea groups, causing the skeleton and thiourea groups to twist enantiomerically through chiral transfer. These chiral naphthotubes are highly effective at enantiomerically recognizing various neutral chiral molecules with an enantioselectivity up to 17.0. Furthermore, the mechanism of the chiral recognition has been revealed to be originated from differences in multiple non-covalent interactions. Various factors, such as the shape of cavities, substituents of guests, flexibility of host and binding modes are demonstrated to contribute to creating differences in the non-covalent interactions. Additionally, the driving force behind enantioselectivity is mainly attributed to enthalpic differences, and enthalpy -entropy compensation has also been observed to influence enantioselectivity.
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Affiliation(s)
- Song-Meng Wang
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Yan-Fang Wang
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Liping Huang
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Li-Shuo Zheng
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Hao Nian
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Yu-Tao Zheng
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Huan Yao
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Wei Jiang
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China.
| | - Xiaoping Wang
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China.
| | - Liu-Pan Yang
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
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6
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Manick AD, Li C, Antonetti E, Albalat M, Cotelle Y, Nava P, Dutasta JP, Chatelet B, Martinez A. Probing the Importance of Host Symmetry on Carbohydrate Recognition. Chemistry 2023; 29:e202203212. [PMID: 36563113 DOI: 10.1002/chem.202203212] [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: 10/13/2022] [Indexed: 12/24/2022]
Abstract
The design of molecular cages with low symmetry could allow for more specific tuning of their properties and better mimic the unsymmetrical and complex environment of protein pockets. However, the added value of lowering symmetry of molecular receptors has been rarely demonstrated. Herein, C3 - and C1 -symmetrical cages, presenting the same recognition sites, have been synthesized and investigated as hosts for carbohydrate recognition. Structurally related derivatives of glucose, galactose and mannose were found to have greater affinity to the receptor with the lowest symmetry than to their C3 -symmetrical analogue. According to the host cavity modelling, the C1 symmetry receptor exhibits a wider opening than its C3 -symmetrical counterpart, providing easier access and thus promoting guest proximity to binding sites. Moreover, our results show the high stereo- and substrate selectivity of the C1 symmetry cage with respect to its C3 counterpart in the recognition of sugars.
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Affiliation(s)
- Anne-Doriane Manick
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille, France
| | - Chunyang Li
- School of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong, 643000, China.,Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science & Engineering, Zigong, 643000, China
| | - Elise Antonetti
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille, France
| | - Muriel Albalat
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille, France
| | - Yoann Cotelle
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille, France
| | - Paola Nava
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille, France
| | - Jean-Pierre Dutasta
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69364, Lyon, France
| | - Bastien Chatelet
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille, France
| | - Alexandre Martinez
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille, France
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7
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Leibiger B, Stapf M, Mazik M. Cycloalkyl Groups as Building Blocks of Artificial Carbohydrate Receptors: Studies with Macrocycles Bearing Flexible Side-Arms. Molecules 2022; 27:7630. [PMID: 36364458 PMCID: PMC9654292 DOI: 10.3390/molecules27217630] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 09/29/2023] Open
Abstract
The cyclopentyl group was expected to act as a building block for artificial carbohydrate receptors and to participate in van der Waals contacts with the carbohydrate substrate in a similar way as observed for the pyrrolidine ring of proline in the crystal structures of protein-carbohydrate complexes. Systematic binding studies with a series of 1,3,5-trisubstituted 2,4,6-triethylbenzenes bearing various cycloalkyl groups as recognition units provided indications of the involvement of these groups in the complexation process and showed the influence of the ring size on the receptor efficiency. Representatives of compounds that exhibit a macrocyclic backbone and flexible side arms were now chosen as further model systems to investigate whether the previously observed effects represent a general trend. Binding studies with these macrocycles towards β-D-glucopyranoside, an all-equatorial substituted carbohydrate substrate, included 1H NMR spectroscopic titrations and microcalorimetric investigations. The performed studies confirmed the previously observed tendency and showed that the compound bearing cyclohexyl groups displays the best binding properties.
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Affiliation(s)
| | | | - Monika Mazik
- Institut für Organische Chemie, Technische Universität Bergakademie Freiberg, Leipziger Straße 29, 09596 Freiberg, Germany
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8
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Montà-González G, Sancenón F, Martínez-Máñez R, Martí-Centelles V. Purely Covalent Molecular Cages and Containers for Guest Encapsulation. Chem Rev 2022; 122:13636-13708. [PMID: 35867555 PMCID: PMC9413269 DOI: 10.1021/acs.chemrev.2c00198] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Cage compounds offer unique binding pockets similar to enzyme-binding sites, which can be customized in terms of size, shape, and functional groups to point toward the cavity and many other parameters. Different synthetic strategies have been developed to create a toolkit of methods that allow preparing tailor-made organic cages for a number of distinct applications, such as gas separation, molecular recognition, molecular encapsulation, hosts for catalysis, etc. These examples show the versatility and high selectivity that can be achieved using cages, which is impossible by employing other molecular systems. This review explores the progress made in the field of fully organic molecular cages and containers by focusing on the properties of the cavity and their application to encapsulate guests.
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Affiliation(s)
- Giovanni Montà-González
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM) Universitat
Politècnica de València, Universitat de València. Camino de Vera, s/n 46022, Valencia, Spain
| | - Félix Sancenón
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM) Universitat
Politècnica de València, Universitat de València. Camino de Vera, s/n 46022, Valencia, Spain,CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain,Centro
de Investigación Príncipe Felipe, Unidad Mixta UPV-CIPF
de Investigación de Mecanismos de Enfermedades y Nanomedicina,
Valencia, Universitat Politècnica
de València, 46012 Valencia, Spain,Instituto
de Investigación Sanitaria la Fe, Unidad Mixta de Investigación
en Nanomedicina y Sensores, Universitat
Politènica de València, 46026 València, Spain,Departamento
de Química, Universitat Politècnica
de València, 46022 Valencia, Spain
| | - Ramón Martínez-Máñez
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM) Universitat
Politècnica de València, Universitat de València. Camino de Vera, s/n 46022, Valencia, Spain,CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain,Centro
de Investigación Príncipe Felipe, Unidad Mixta UPV-CIPF
de Investigación de Mecanismos de Enfermedades y Nanomedicina,
Valencia, Universitat Politècnica
de València, 46012 Valencia, Spain,Instituto
de Investigación Sanitaria la Fe, Unidad Mixta de Investigación
en Nanomedicina y Sensores, Universitat
Politènica de València, 46026 València, Spain,Departamento
de Química, Universitat Politècnica
de València, 46022 Valencia, Spain,R.M.-M.: email,
| | - Vicente Martí-Centelles
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM) Universitat
Politècnica de València, Universitat de València. Camino de Vera, s/n 46022, Valencia, Spain,V.M.-C.:
email,
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9
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Teichmann B, Krause AM, Lin MJ, Würthner F. Enantioselective Recognition of Helicenes by a Tailored Chiral Benzo[ghi]perylene Trisimide π-Scaffold. Angew Chem Int Ed Engl 2022; 61:e202117625. [PMID: 35103371 PMCID: PMC9303377 DOI: 10.1002/anie.202117625] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Indexed: 12/16/2022]
Abstract
Enantioselective molecular recognition of chiral molecules that lack specific interaction sites for hydrogen bonding or Lewis acid-base interactions remains challenging. Here we introduce the concept of tailored chiral π-surfaces toward the maximization of shape complementarity. As we demonstrate for helicenes it is indeed possible by pure van-der-Waals interactions (π-π interactions and CH-π interactions) to accomplish enantioselective binding. This is shown for a novel benzo[ghi]perylene trisimide (BPTI) receptor whose π-scaffold is contorted into a chiral plane by functionalization with 1,1'-bi-2-naphthol (BINOL). Complexation experiments of enantiopure (P)-BPTI with (P)- and (M)-[6]helicene afforded binding constants of 10 700 M-1 and 550 M-1 , respectively, thereby demonstrating the pronounced enantiodifferentiation by the homochiral π-scaffold of the BPTI host. The enantioselective recognition is even observable by the naked eye due to a specific exciplex-type emission originating from the interacting homochiral π-scaffolds of electron-rich [6]helicene and electron-poor BPTI.
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Affiliation(s)
- Ben Teichmann
- Institut für Organische Chemie and Center for Nanosystems Chemistry, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, 350116, China
| | - Ana-Maria Krause
- Institut für Organische Chemie and Center for Nanosystems Chemistry, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Mei-Jin Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, 350116, China
| | - Frank Würthner
- Institut für Organische Chemie and Center for Nanosystems Chemistry, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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10
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Teichmann B, Krause A, Lin M, Würthner F. Enantioselective Recognition of Helicenes by a Tailored Chiral Benzo[ghi]perylene Trisimide π‐Scaffold. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ben Teichmann
- Institut für Organische Chemie and Center for Nanosystems Chemistry Universität Würzburg Am Hubland 97074 Würzburg Germany
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University 350116 China
| | - Ana‐Maria Krause
- Institut für Organische Chemie and Center for Nanosystems Chemistry Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Mei‐Jin Lin
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University 350116 China
| | - Frank Würthner
- Institut für Organische Chemie and Center for Nanosystems Chemistry Universität Würzburg Am Hubland 97074 Würzburg Germany
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11
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Amrhein F, Mazik M. Compounds Combining a Macrocyclic Building Block and Flexible Side‐Arms as Carbohydrate Receptors: Syntheses and Structure‐Binding Activity Relationship Studies. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100758] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Felix Amrhein
- Institut für Organische Chemie Technische Universität Bergakademie Freiberg Leipziger Strasse 29 09599 Freiberg Germany
| | - Monika Mazik
- Institut für Organische Chemie Technische Universität Bergakademie Freiberg Leipziger Strasse 29 09599 Freiberg Germany
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12
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Schaapkens X, van Sluis RN, Bobylev EO, Reek JNH, Mooibroek TJ. A Water Soluble Pd 2 L 4 Cage for Selective Binding of Neu5Ac. Chemistry 2021; 27:13719-13724. [PMID: 34486179 PMCID: PMC8518546 DOI: 10.1002/chem.202102176] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Indexed: 11/30/2022]
Abstract
The sialic acid N-acetylneuraminic acid (Neu5Ac) and its derivatives are involved in many biological processes including cell-cell recognition and infection by influenza. Molecules that can recognize Neu5Ac might thus be exploited to intervene in or monitor such events. A key obstacle in this development is the sparse availability of easily prepared molecules that bind to this carbohydrate in its natural solvent; water. Here, we report that the carbohydrate binding pocket of an organic soluble [Pd2 L4 ]4+ cage could be equipped with guanidinium-terminating dendrons to give the water soluble [Pd2 L4 ][NO3 ]16 cage 7. It was shown by means of NMR spectroscopy that 7 binds selectively to anionic monosaccharides and strongest to Neu5Ac with Ka =24 M-1 . The cage had low to no affinity for the thirteen neutral saccharides studied. Aided by molecular modeling, the selectivity for anionic carbohydrates such as Neu5Ac could be rationalized by the presence of charge assisted hydrogen bonds and/or the presence of a salt bridge with a guanidinium solubilizing arm of 7. Establishing that a simple coordination cage such as 7 can already selectively bind to Neu5Ac in water paves the way to improve the stability, affinity and/or selectivity properties of M2 L4 cages for carbohydrates and other small molecules.
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Affiliation(s)
- Xander Schaapkens
- Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdam (TheNetherlands
| | - Roy N. van Sluis
- Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdam (TheNetherlands
| | - Eduard O. Bobylev
- Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdam (TheNetherlands
| | - Joost N. H. Reek
- Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdam (TheNetherlands
| | - Tiddo J. Mooibroek
- Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdam (TheNetherlands
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13
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Liu W, Tan Y, Jones LO, Song B, Guo QH, Zhang L, Qiu Y, Feng Y, Chen XY, Schatz GC, Stoddart JF. PCage: Fluorescent Molecular Temples for Binding Sugars in Water. J Am Chem Soc 2021; 143:15688-15700. [PMID: 34505510 DOI: 10.1021/jacs.1c06333] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of synthetic receptors that recognize carbohydrates in water with high selectivity and specificity is challenging on account of their structural complexity and strong hydrophilicity. Here, we report on the design and synthesis of two pyrene-based, temple-shaped receptors for the recognition of a range of common sugars in water. These receptors rely on the use of two parallel pyrene panels, which serve as roofs and floors, capable of forming multiple [C-H···π] interactions with the axially oriented C-H bonds on glycopyranosyl rings in the carbohydrate-based substrates. In addition, eight polarized pyridinium C-H bonds, projecting from the roofs and floors of the temple receptors toward the binding cavities, form [C-H···O] hydrogen bonds, with the equatorially oriented OH groups on the sugars located inside the hydrophobic cavities. Four para-xylylene pillars play a crucial role in controlling the distance between the roof and floor. These temple receptors are highly selective for the binding of glucose and its derivatives. Furthermore, they show enhanced fluorescence upon binding with glucose in water, a property which is useful for glucose-sensing in aqueous solution.
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Affiliation(s)
- Wenqi Liu
- Department of Chemistry, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, United States
| | - Yu Tan
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Leighton O Jones
- Department of Chemistry, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, United States
| | - Bo Song
- Department of Chemistry, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, United States
| | - Qing-Hui Guo
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, China.,ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
| | - Long Zhang
- Department of Chemistry, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, United States
| | - Yunyan Qiu
- Department of Chemistry, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, United States
| | - Yuanning Feng
- Department of Chemistry, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, United States
| | - Xiao-Yang Chen
- Department of Chemistry, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, United States
| | - George C Schatz
- Department of Chemistry, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, United States
| | - J Fraser Stoddart
- Department of Chemistry, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, United States.,School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.,Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, China.,ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
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14
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Timmer BJJ, Mooibroek TJ. Anion binding properties of a hollow PdL-cage. Chem Commun (Camb) 2021; 57:7184-7187. [PMID: 34190254 PMCID: PMC8291284 DOI: 10.1039/d1cc02663a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/23/2021] [Indexed: 12/04/2022]
Abstract
The hollow [PdL][BArF]2 complex 1 of a tetra-pyridyl (py) ligand (L) has a [Pd(py)4]2+ coordination environment. Addition of coordinating anions resulted in the formation of a neutral species with Pd(py)2(anion)2 coordination environment (12A). These species bind further to the coordinating anions in the order Cl- > N3- > Br- > I- > AcO- with Ka1 : 1 ≤ 414 M-1. With relatively non-coordinating anions 1 remains intact and displays 1 : 2 binding behaviour dominated by the 1 : 1 stoichiometry in the order NO3- (∼105 M-1) » ClO4- and BF4- (∼103 M-1). As evidenced by crystal structure data, DFT calculations and {1H-19F}-HOESY NMR with BF4-, the anions are bound by charge assisted [C-H]+···anion interactions.
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Affiliation(s)
- Brian J J Timmer
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, The Netherlands.
| | - Tiddo J Mooibroek
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, The Netherlands.
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15
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Timmer BJJ, Kooijman A, Schaapkens X, Mooibroek TJ. A Synthetic Galectin Mimic. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104924] [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)
- Brian J. J. Timmer
- Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - Arjaan Kooijman
- Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - Xander Schaapkens
- Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - Tiddo J. Mooibroek
- Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
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16
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Timmer BJJ, Kooijman A, Schaapkens X, Mooibroek TJ. A Synthetic Galectin Mimic. Angew Chem Int Ed Engl 2021; 60:16178-16183. [PMID: 33964110 PMCID: PMC8361779 DOI: 10.1002/anie.202104924] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 04/30/2021] [Indexed: 12/30/2022]
Abstract
Galectins are a galactoside specific subclass of carbohydrate binding proteins (lectins) involved in various cellular activities, certain cancers, infections, inflammations, and many other biological processes. The molecular basis for the selectivity of galectins is well-documented and revolves around appropriate interaction complementarity: an aromatic residue for C-H⋅⋅⋅π interactions and polar residues for (charge assisted) hydrogen bonds with the axial hydroxyl group of a galactoside. However, no synthetic mimics are currently available. We now report on the design and synthesis of the first galectin mimic (6), and show that it has a higher than 65-fold preference for n-octyl-β-galactoside (8) over n-octyl-β-glucoside (7) in CD2 Cl2 containing 5 % [D6 ]DMSO (with Ka ≥4500 M-1 for 6:8). Molecular modeling informed by nOe studies reveal a high degree of interaction complementarity between 6 and galactoside 8, which is very similar to the interaction complementarity found in natural galectins.
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Affiliation(s)
- Brian J. J. Timmer
- Van't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Arjaan Kooijman
- Van't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Xander Schaapkens
- Van't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Tiddo J. Mooibroek
- Van't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
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17
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Kim EJ. Advances in Strategies and Tools Available for Interrogation of Protein O-GlcNAcylation. Chembiochem 2021; 22:3010-3026. [PMID: 34101962 DOI: 10.1002/cbic.202100219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/08/2021] [Indexed: 11/08/2022]
Abstract
The attachment of a single O-linked β-N-acetylglucosamine (O-GlcNAc) to serine and threonine residues of numerous proteins in the nucleus, cytoplasm, and mitochondria is a reversible post-translational modification (PTM) and plays an important role as a regulator of various cellular processes in both healthy and disease states. Advances in strategies and tools that allow for the detection of dynamic O-GlcNAcylation on cellular proteins have helped to enhance our initial and ongoing understanding of its dynamic effects on cellular stimuli and given insights into its link to the pathogenesis of several chronic diseases. Furthermore, chemical genetic strategies and related tools have been successfully applied to a myriad of biological systems with a new level of spatiotemporal and molecular precision. These strategies have started to be used in studying and controlling O-GlcNAcylation both in vivo and in vitro. In this minireview, overviews of recent advances in molecular tools being applied to the detection and identification of O-GlcNAcylation on cellular proteins as well as on individual proteins are provided. In addition, chemical genetic strategies that have already been applied or are potentially usable in O-GlcNAc functional are also discussed.
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Affiliation(s)
- Eun Ju Kim
- Daegu University, Gyeongsan-Si, Gyeongsangbuk-do, Republic of Korea
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18
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Santos JVDO, Porto ALF, Cavalcanti IMF. Potential Application of Combined Therapy with Lectins as a Therapeutic Strategy for the Treatment of Bacterial Infections. Antibiotics (Basel) 2021; 10:antibiotics10050520. [PMID: 34063213 PMCID: PMC8147472 DOI: 10.3390/antibiotics10050520] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/26/2021] [Accepted: 04/30/2021] [Indexed: 12/18/2022] Open
Abstract
Antibiotic monotherapy may become obsolete mainly due to the continuous emergence of resistance to available antimicrobials, which represents a major uncertainty to human health. Taking into account that natural products have been an inexhaustible source of new compounds with clinical application, lectins are certainly one of the most versatile groups of proteins used in biological processes, emerging as a promising alternative for therapy. The ability of lectins to recognize carbohydrates present on the cell surface allowed for the discovery of a wide range of activities. Currently the number of antimicrobials in research and development does not match the rate at which resistance mechanisms emerge to an effective antibiotic monotherapy. A promising therapeutic alternative is the combined therapy of antibiotics with lectins to enhance its spectrum of action, minimize adverse effects, and reduce resistance to treatments. Thus, this review provides an update on the experimental application of antibiotic therapies based on the synergic combination with lectins to treat infections specifically caused by multidrug-resistant and biofilm-producing Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. We also briefly discuss current strategies involving the modulation of the gut microbiota, its implications for antimicrobial resistance, and highlight the potential of lectins to modulate the host immune response against oxidative stress.
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Affiliation(s)
- João Victor de Oliveira Santos
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Recife 50670-901, Pernambuco, Brazil;
| | - Ana Lúcia Figueiredo Porto
- Department of Morphology and Animal Physiology Animal, Federal Rural University of Pernambuco (UFRPE), Recife 52171-900, Pernambuco, Brazil;
| | - Isabella Macário Ferro Cavalcanti
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Recife 50670-901, Pernambuco, Brazil;
- Academic Center of Vitória (CAV), Laboratory of Microbiology and Immunology, Federal University of Pernambuco (UFPE), Vitória de Santo Antão 55608-680, Pernambuco, Brazil
- Correspondence: ; Tel.: + 55-81-2101-2501
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19
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Ferguson Johns HP, Harrison EE, Stingley KJ, Waters ML. Mimicking Biological Recognition: Lessons in Binding Hydrophilic Guests in Water. Chemistry 2021; 27:6620-6644. [PMID: 33048395 DOI: 10.1002/chem.202003759] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Indexed: 01/25/2023]
Abstract
Selective molecular recognition of hydrophilic guests in water plays a fundamental role in a vast number of biological processes, but synthetic mimicry of biomolecular recognition in water still proves challenging both in terms of achieving comparable affinities and selectivities. This Review highlights strategies that have been developed in the field of supramolecular chemistry to selectively and non-covalently bind three classes of biologically relevant molecules: nucleotides, carbohydrates, and amino acids. As several groups have systematically modified receptors for a specific guest, an evolutionary perspective is also provided in some cases. Trends in the most effective binding forces for each class are described, providing insight into selectivity and potential directions for future work.
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Affiliation(s)
- Hannah P Ferguson Johns
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Emily E Harrison
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Kyla J Stingley
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Marcey L Waters
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
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20
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Li Y, Li X, Li L, Xiao B, Wu J, Li H, Li D, He C. Phenoxazine-based supramolecular tetrahedron as biomimetic lectin for glucosamine recognition. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.07.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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21
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Köhler L, Hübler C, Seichter W, Mazik M. Binding modes of methyl α- d-glucopyranoside to an artificial receptor in crystalline complexes. RSC Adv 2021; 11:22221-22229. [PMID: 35480817 PMCID: PMC9034237 DOI: 10.1039/d1ra03390e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 02/28/2022] [Accepted: 06/01/2021] [Indexed: 01/04/2023] Open
Abstract
Complexes formed between methyl α-d-glucopyranoside and an artificial receptor represent a valuable source of information about the basic molecular features of carbohydrate recognition.
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Affiliation(s)
- Linda Köhler
- Institut für Organische Chemie, Technische Universität Bergakademie Freiberg, Leipziger Strasse 29, 09599 Freiberg, Germany
| | - Conrad Hübler
- Institut für Organische Chemie, Technische Universität Bergakademie Freiberg, Leipziger Strasse 29, 09599 Freiberg, Germany
| | - Wilhelm Seichter
- Institut für Organische Chemie, Technische Universität Bergakademie Freiberg, Leipziger Strasse 29, 09599 Freiberg, Germany
| | - Monika Mazik
- Institut für Organische Chemie, Technische Universität Bergakademie Freiberg, Leipziger Strasse 29, 09599 Freiberg, Germany
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22
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Dong J, Davis AP. Molecular Recognition Mediated by Hydrogen Bonding in Aqueous Media. Angew Chem Int Ed Engl 2020; 60:8035-8048. [DOI: 10.1002/anie.202012315] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/14/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Jinqiao Dong
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Anthony P. Davis
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
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23
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Dong J, Davis AP. Molecular Recognition Mediated by Hydrogen Bonding in Aqueous Media. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012315] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jinqiao Dong
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Anthony P. Davis
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
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24
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Design a synthetic glucose receptor using computational intelligence approach. J Mol Graph Model 2020; 103:107797. [PMID: 33246193 DOI: 10.1016/j.jmgm.2020.107797] [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: 07/31/2020] [Revised: 11/01/2020] [Accepted: 11/02/2020] [Indexed: 11/24/2022]
Abstract
The synthetic glucose receptors help to develop glucose sensors and alternative insulin therapies. Designing a glucose recognition molecule in an aqueous system remains a considerable challenge. Therefore, In-silico molecular screening hypothesis is proposed to overcome the difficulties found during the modeling of a molecule. The small organic compounds from compound databases are screened for glucose receptor modeling. Thereafter, the different computational models are designed that mimic natural glucose receptors based on screened compounds. The orientation and binding of glucose molecules within the developed receptor are predicted through the molecular interaction approach. The modeled receptors and receptor-glucose complex structures are used for geometry optimization and molecular dynamics computation. The docking results reveal that ZINC82047919, ZINC238094340, and ZINC238519600 compounds-based models provide better interactions with glucose and its orientation within the receptor cavity. The molecular dynamics simulation results showed that the receptor designed using compound ZINC238094340 is unable to hold the glucose and undergo significant conformation changes during simulation process. The receptor designed from ZINC238094340 and ZINC238519600 compounds is utilized as a reference glucose binding receptor in this study. The proposed computational approach is able to develop a novel glucose receptor and other glucose relative sugar molecules.
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25
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Park H, Lee D. Biomimetic hydrogen-bonding cascade for chemical activation: telling a nucleophile from a base. Chem Sci 2020; 12:590-598. [PMID: 34163789 PMCID: PMC8178988 DOI: 10.1039/d0sc05067a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Hydrogen bonding-assisted polarization is an effective strategy to promote bond-making and bond-breaking chemical reactions. Taking inspiration from the catalytic triad of serine protease active sites, we have devised a conformationally well-defined benzimidazole platform that can be systematically functionalized to install multiple hydrogen bonding donor (HBD) and acceptor (HBA) pairs in a serial fashion. We found that an increasing number of interdependent and mutually reinforcing HBD–HBA contacts facilitate the bond-forming reaction of a fluorescence-quenching aldehyde group with the cyanide ion, while suppressing the undesired Brønsted acid–base reaction. The most advanced system, evolved through iterative rule-finding studies, reacts rapidly and selectively with CN− to produce a large (>180-fold) enhancement in the fluorescence intensity at λmax = 450 nm. Biomimetic cascade hydrogen bonds promote covalent capture of a nucleophile by polarizing the electrophilic reaction site, while suppressing non-productive acid–base chemistry as the competing reaction pathway.![]()
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Affiliation(s)
- Hyunchang Park
- Department of Chemistry, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Korea
| | - Dongwhan Lee
- Department of Chemistry, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Korea
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26
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Estevez A, Zhu D, Blankenship C, Jiang J. Molecular Interrogation to Crack the Case of O-GlcNAc. Chemistry 2020; 26:12086-12100. [PMID: 32207184 PMCID: PMC7724648 DOI: 10.1002/chem.202000155] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 02/28/2020] [Indexed: 12/25/2022]
Abstract
The O-linked β-N-acetylglucosamine (O-GlcNAc) modification, termed O-GlcNAcylation, is an essential and dynamic post-translational modification in cells. O-GlcNAc transferase (OGT) installs this modification on serine and threonine residues, whereas O-GlcNAcase (OGA) hydrolyzes it. O-GlcNAc modifications are found on thousands of intracellular proteins involved in diverse biological processes. Dysregulation of O-GlcNAcylation and O-GlcNAc cycling enzymes has been detected in many diseases, including cancer, diabetes, cardiovascular and neurodegenerative diseases. Here, recent advances in the development of molecular tools to investigate OGT and OGA functions and substrate recognition are discussed. New chemical approaches to study O-GlcNAc dynamics and its potential roles in the immune system are also highlighted. It is hoped that this minireview will encourage more research in these areas to advance the understanding of O-GlcNAc in biology and diseases.
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Affiliation(s)
- Arielis Estevez
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Dongsheng Zhu
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Connor Blankenship
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Jiaoyang Jiang
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, WI, 53705, USA
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27
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Stapf M, Seichter W, Mazik M. Cycloalkyl Groups as Subunits of Artificial Carbohydrate Receptors: Effect of Ring Size of the Cycloalkyl Unit on the Receptor Efficiency. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000803] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Manuel Stapf
- Institut für Organische Chemie Technische Universität Bergakademie Freiberg Leipziger Strasse 29 09599 Freiberg Germany
| | - Wilhelm Seichter
- Institut für Organische Chemie Technische Universität Bergakademie Freiberg Leipziger Strasse 29 09599 Freiberg Germany
| | - Monika Mazik
- Institut für Organische Chemie Technische Universität Bergakademie Freiberg Leipziger Strasse 29 09599 Freiberg Germany
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28
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Tromans RA, Samanta SK, Chapman AM, Davis AP. Selective glucose sensing in complex media using a biomimetic receptor. Chem Sci 2020; 11:3223-3227. [PMID: 34122828 PMCID: PMC8157503 DOI: 10.1039/c9sc05406e] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Glucose is a key biomedical analyte, especially relevant to the management of diabetes. Current methods for glucose determination rely on the enzyme glucose oxidase, requiring specialist instrumentation and suffering from redox-active interferents. In a new approach, a powerful and highly selective achiral glucose receptor is mixed with a sample, l-glucose is added, and the induced CD spectrum is measured. The CD signal results from competition between the enantiomers, and is used to determine the d-glucose content. The involvement of l-glucose doubles the signal range from the CD spectrometer and allows sensitivity to be adjusted over a wide dynamic range. It also negates medium effects, which must be equal for both enantiomers. The method has been demonstrated with human serum, pre-filtered to remove proteins, giving results which closely match the standard biochemical procedures, as well as a cell culture medium and a beer sample containing high (70 mM) and low (0.4 mM) glucose concentrations respectively. A highly selective receptor, circular dichroism and chiral competition are combined in this versatile method for d-glucose analysis.![]()
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Affiliation(s)
- Robert A Tromans
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Soumen K Samanta
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Andy M Chapman
- Carbometrics Ltd., Unit DX St Philips Central, Albert Road Bristol BS2 0XJ UK
| | - Anthony P Davis
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
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29
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Lauer JC, Pang Z, Janßen P, Rominger F, Kirschbaum T, Elstner M, Mastalerz M. Host-Guest Chemistry of Truncated Tetrahedral Imine Cages with Ammonium Ions. ChemistryOpen 2020; 9:183-190. [PMID: 32025463 PMCID: PMC6996569 DOI: 10.1002/open.201900357] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/10/2020] [Indexed: 01/29/2023] Open
Abstract
Three shape-persistent [4+4] imine cages with truncated tetrahedral geometry with different window sizes were studied as hosts for the encapsulation of tetra-n-alkylammonium salts of various bulkiness. In various solvents the cages behave differently. For instance, in dichloromethane the cage with smallest window size takes up NEt4+ but not NMe4+, which is in contrast to the two cages with larger windows hosting both ions. To find out the reason for this, kinetic experiments were carried out to determine the velocity of uptake but also to deduce the activation barriers for these processes. To support the experimental results, calculations for the guest uptakes have been performed by molecular mechanics' simulations. Finally, the complexation of pharmaceutical interested compounds, such as acetylcholine, muscarine or denatonium have been determined by NMR experiments.
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Affiliation(s)
- Jochen C. Lauer
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Ziwei Pang
- Institut für Physikalische Chemie Theoretische Chemische BiologieUniversität Karlsruhe Geb. 30.44Kaiserstr. 1276131KarlsruheGermany
| | - Paul Janßen
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Frank Rominger
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Tobias Kirschbaum
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Marcus Elstner
- Institut für Physikalische Chemie Theoretische Chemische BiologieUniversität Karlsruhe Geb. 30.44Kaiserstr. 1276131KarlsruheGermany
| | - Michael Mastalerz
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
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30
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Duan H, Li Y, Li Q, Wang P, Liu X, Cheng L, Yu Y, Cao L. Host–Guest Recognition and Fluorescence of a Tetraphenylethene‐Based Octacationic Cage. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201912730] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Honghong Duan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of EducationNational Demonstration Center for Experimental Chemistry EducationCollege of Chemistry and Materials ScienceNorthwest University Xi'an 710069 P. R. China
| | - Yawen Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of EducationNational Demonstration Center for Experimental Chemistry EducationCollege of Chemistry and Materials ScienceNorthwest University Xi'an 710069 P. R. China
| | - Qingfang Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of EducationNational Demonstration Center for Experimental Chemistry EducationCollege of Chemistry and Materials ScienceNorthwest University Xi'an 710069 P. R. China
| | - Pinpin Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of EducationNational Demonstration Center for Experimental Chemistry EducationCollege of Chemistry and Materials ScienceNorthwest University Xi'an 710069 P. R. China
| | - Xueru Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of EducationNational Demonstration Center for Experimental Chemistry EducationCollege of Chemistry and Materials ScienceNorthwest University Xi'an 710069 P. R. China
| | - Lin Cheng
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of EducationNational Demonstration Center for Experimental Chemistry EducationCollege of Chemistry and Materials ScienceNorthwest University Xi'an 710069 P. R. China
| | - Yang Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of EducationNational Demonstration Center for Experimental Chemistry EducationCollege of Chemistry and Materials ScienceNorthwest University Xi'an 710069 P. R. China
| | - Liping Cao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of EducationNational Demonstration Center for Experimental Chemistry EducationCollege of Chemistry and Materials ScienceNorthwest University Xi'an 710069 P. R. China
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31
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Duan H, Li Y, Li Q, Wang P, Liu X, Cheng L, Yu Y, Cao L. Host-Guest Recognition and Fluorescence of a Tetraphenylethene-Based Octacationic Cage. Angew Chem Int Ed Engl 2020; 59:10101-10110. [PMID: 31692185 DOI: 10.1002/anie.201912730] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Indexed: 12/19/2022]
Abstract
We report the synthesis and characterization of a three-dimensional tetraphenylethene-based octacationic cage that shows host-guest recognition of polycyclic aromatic hydrocarbons (e.g. coronene) in organic media and water-soluble dyes (e.g. sulforhodamine 101) in aqueous media through CH⋅⋅⋅π, π-π, and/or electrostatic interactions. The cage⊃coronene exhibits a cuboid internal cavity with a size of approximately 17.2×11.0×6.96 Å3 and a "hamburger"-type host-guest complex, which is hierarchically stacked into 1D nanotubes and a 3D supramolecular framework. The free cage possesses a similar cavity in the crystalline state. Furthermore, a host-guest complex formed between the octacationic cage and sulforhodamine 101 had a higher absolute quantum yield (ΦF =28.5 %), larger excitation-emission gap (Δλex-em =211 nm), and longer emission lifetime (τ=7.0 ns) as compared to the guest (ΦF =10.5 %; Δλex-em =11 nm; τ=4.9 ns), and purer emission (ΔλFWHM =38 nm) as compared to the host (ΔλFWHM =111 nm).
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Affiliation(s)
- Honghong Duan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Yawen Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Qingfang Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Pinpin Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Xueru Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Lin Cheng
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Yang Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Liping Cao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
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32
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Abstract
Binding saccharides with non-covalent interactions is challenging, especially in the natural medium of water, but synthetic carbohydrate receptors can be surprisingly effective.
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Affiliation(s)
- Anthony P. Davis
- School of Chemistry
- University of Bristol
- Cantock's Close
- Bristol BS8 1TS
- UK
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33
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Stimuli-responsive fluorescent supramolecular polymer network based on a monofunctionalized leaning tower[6]arene. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.10.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Tommasone S, Allabush F, Tagger YK, Norman J, Köpf M, Tucker JHR, Mendes PM. The challenges of glycan recognition with natural and artificial receptors. Chem Soc Rev 2019; 48:5488-5505. [PMID: 31552920 DOI: 10.1039/c8cs00768c] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Glycans - simple or complex carbohydrates - play key roles as recognition determinants and modulators of numerous physiological and pathological processes. Thus, many biotechnological, diagnostic and therapeutic opportunities abound for molecular recognition entities that can bind glycans with high selectivity and affinity. This review begins with an overview of the current biologically and synthetically derived glycan-binding scaffolds that include antibodies, lectins, aptamers and boronic acid-based entities. It is followed by a more detailed discussion on various aspects of their generation, structure and recognition properties. It serves as the basis for highlighting recent key developments and technical challenges that must be overcome in order to fully deal with the specific recognition of a highly diverse and complex range of glycan structures.
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Affiliation(s)
- Stefano Tommasone
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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35
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Bauzá A, Frontera A, Mooibroek TJ. π-Hole Interactions Involving Nitro Aromatic Ligands in Protein Structures. Chemistry 2019; 25:13436-13443. [PMID: 31453653 PMCID: PMC6856858 DOI: 10.1002/chem.201903404] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Indexed: 01/03/2023]
Abstract
Studying noncanonical intermolecular interactions between a ligand and a protein constitutes an emerging research field. Identifying synthetically accessible molecular fragments that can engage in intermolecular interactions is a key objective in this area. Here, it is shown that so-called "π-hole interactions" are present between the nitro moiety in nitro aromatic ligands and lone pairs within protein structures (water and protein carbonyls and sulfurs). Ample structural evidence was found in a PDB analysis and computations reveal interaction energies of about -5 kcal mol-1 for ligand-protein π-hole interactions. Several examples are highlighted for which a π-hole interaction is implicated in the superior binding affinity or inhibition of a nitro aromatic ligand versus a similar non-nitro analogue. The discovery that π-hole interactions with nitro aromatics are significant within protein structures parallels the finding that halogen bonds are biologically relevant. This has implications for the interpretation of ligand-protein complexation phenomena, for example, involving the more than 50 approved drugs that contain a nitro aromatic moiety.
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Affiliation(s)
- Antonio Bauzá
- Department of ChemistryUniversitat de les Illes BalearsCrta. de Valldemossa km 7.507122Palma (Baleares)Spain
| | - Antonio Frontera
- Department of ChemistryUniversitat de les Illes BalearsCrta. de Valldemossa km 7.507122Palma (Baleares)Spain
| | - Tiddo Jonathan Mooibroek
- van ‘t Hoff Institute for Molecular SciencesUniversiteit van AmsterdamScience Park 9041098XHAmsterdamThe Netherlands
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36
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Montalvillo-Jiménez L, Santana AG, Corzana F, Jiménez-Osés G, Jiménez-Barbero J, Gómez AM, Asensio JL. Impact of Aromatic Stacking on Glycoside Reactivity: Balancing CH/π and Cation/π Interactions for the Stabilization of Glycosyl-Oxocarbenium Ions. J Am Chem Soc 2019; 141:13372-13384. [PMID: 31390207 DOI: 10.1021/jacs.9b03285] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Carbohydrate/aromatic stacking represents a recurring key motif for the molecular recognition of glycosides, either by protein binding domains, enzymes, or synthetic receptors. Interestingly, it has been proposed that aromatic residues might also assist in the formation/cleavage of glycosidic bonds by stabilizing positively charged oxocarbenium-like intermediates/transition states through cation/π interactions. While the significance of aromatic stacking on glycoside recognition is well stablished, its impact on the reactivity of glycosyl donors is yet to be explored. Herein, we report the first experimental study on this relevant topic. Our strategy is based on the design, synthesis, and reactivity evaluation of a large number of model systems, comprising a wide range of glycosidic donor/aromatic complexes. Different stacking geometries and dynamic features, anomeric leaving groups, sugar configurations, and reaction conditions have been explicitly considered. The obtained results underline the opposing influence exerted by van der Waals and Coulombic forces on the reactivity of the carbohydrate/aromatic complex: depending on the outcome of this balance, aromatic platforms can indeed exert a variety of effects, stretching from reaction inhibition all the way to rate enhancements. Although aromatic/glycosyl cation contacts are highly dynamic, the conclusions of our study suggest that aromatic assistance to glycosylation processes must indeed be feasible, with far reaching implications for enzyme engineering and organocatalysis.
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Affiliation(s)
| | - Andrés G Santana
- Instituto de Química Orgánica (IQOG-CSIC) , Juan de la Cierva 3 , 28006 Madrid , Spain
| | - Francisco Corzana
- Departamento Quı́mica and Centro de Investigación en Sı́ntesis Quı́mica , Universidad de La Rioja , 26006 Logroño , Spain
| | - Gonzalo Jiménez-Osés
- Center for Cooperative Research in Biosciences (CIC-bioGUNE) , 48160 Derio , Spain
| | - Jesús Jiménez-Barbero
- Center for Cooperative Research in Biosciences (CIC-bioGUNE) , 48160 Derio , Spain.,Basque Foundation for Science, Ikerbasque , 48013 Bilbo , Spain
| | - Ana M Gómez
- Instituto de Química Orgánica (IQOG-CSIC) , Juan de la Cierva 3 , 28006 Madrid , Spain
| | - Juan Luis Asensio
- Instituto de Química Orgánica (IQOG-CSIC) , Juan de la Cierva 3 , 28006 Madrid , Spain
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37
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Ohishi Y, Murase M, Abe H, Inouye M. Enantioselective Solid–Liquid Extraction of Native Saccharides with Chiral BINOL-Based Pyridine–Phenol Type Macrocycles. Org Lett 2019; 21:6202-6207. [DOI: 10.1021/acs.orglett.9b01980] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuki Ohishi
- Graduate School of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Mikino Murase
- Graduate School of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Hajime Abe
- Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, Hyogo 670-8524, Japan
| | - Masahiko Inouye
- Graduate School of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
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38
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Wang LL, Tu YK, Yao H, Jiang W. 2,3-Dibutoxynaphthalene-based tetralactam macrocycles for recognizing precious metal chloride complexes. Beilstein J Org Chem 2019; 15:1460-1467. [PMID: 31354862 PMCID: PMC6633862 DOI: 10.3762/bjoc.15.146] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Accepted: 06/27/2019] [Indexed: 01/07/2023] Open
Abstract
Two new tetralactam macrocycles with 2,3-dibutoxynaphthalene groups as sidewalls have been synthesized and characterized. The macrocycle containing isophthalamide bridges can bind square-planar chloride coordination complexes of gold(III), platinum(II), and palladium(II) in CDCl3, while the macrocycle with 2,6-pyridine dicarboxamide bridging units cannot. This may be due to the shrunken cavity caused by intramolecular hydrogen bonds in the latter tetralactam macrocycle. The binding of the isophthalamide-based macrocycle is mainly driven by hydrogen bonds and electrostatic interactions. This naphthalene-based macrocycle has similar binding affinities to all the three abovementioned precious metal chloride complexes. This is in contrast to the fact that the tetralactam macrocycle with anthracene as the sidewalls only show good binding affinities to AuCl4 -. The superior binding to all three complexes may be due to the conformational diversity of the naphthalene-based macrocycle, which make it conformationally adaptive to maximize the binding affinities. In addition, the macrocycle shows fluorescent quenching when adding the chloride metal complexes in its solution and may be used as a fluorescent sensor for the detection of these coordination complexes.
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Affiliation(s)
- Li-Li Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Xueyuan Boulevard 1088, Shenzhen 518055, China
| | - Yi-Kuan Tu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Xueyuan Boulevard 1088, Shenzhen 518055, China
| | - Huan Yao
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Xueyuan Boulevard 1088, Shenzhen 518055, China
| | - Wei Jiang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Xueyuan Boulevard 1088, Shenzhen 518055, China
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39
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Zhang W, Li Y, Liang Y, Gao N, Liu C, Wang S, Yin X, Li G. Poly(ionic liquid)s as a distinct receptor material to create a highly-integrated sensing platform for efficiently identifying numerous saccharides. Chem Sci 2019; 10:6617-6623. [PMID: 31367313 PMCID: PMC6624988 DOI: 10.1039/c9sc02266j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 05/22/2019] [Indexed: 12/13/2022] Open
Abstract
A highly-integrated sphere-based sensing platform for directly identifying numerous saccharides very efficiently is developed.
Saccharides have strong hydrophilicities, and are complex molecular structures with subtle structure differences, and tremendous structural variations. The creation of one sensing platform capable of efficiently identifying such target systems presents a huge challenge. Using the integration of unique multiple noncovalent interactions simultaneously occurring in poly(ionic liquid)s (PILs) with multiple signaling channels, in this research an aggregation-induced emission (AIE)-doped photonic structured PIL sphere is constructed. It is found that such a sphere can serve as a highly integrated platform to provide abundant fingerprints for directly sensing numerous saccharides with an unprecedented efficiency. As a demonstration, 23 saccharides can be conveniently identified using only one sphere. More importantly, by using simple ion-exchanges of PIL receptors or/and increasing the AIE signaling channels, this platform is able to perform, on demand, different sensing tasks very efficiently. This is demonstrated by using it for the detection of difficult targets, such as greatly extended saccharides as well as mixed targets, in real-life examples on one or two spheres. The findings show that this new class of platform is very promising for addressing the challenges of identifying saccharides.
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Affiliation(s)
- Wanlin Zhang
- Department of Chemistry , Key Laboratory of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , PR China . .,Aerospace Research Institute of Special Material and Processing Technology , Beijing 100074 , PR China
| | - Yao Li
- Institute of Process Engineering , Chinese Academy of Sciences , Beijing 100190 , PR China
| | - Yun Liang
- Department of Chemistry , Key Laboratory of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , PR China .
| | - Ning Gao
- Department of Chemistry , Key Laboratory of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , PR China .
| | - Chengcheng Liu
- Department of Chemistry , Key Laboratory of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , PR China .
| | - Shiqiang Wang
- Department of Chemistry , Key Laboratory of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , PR China .
| | - Xianpeng Yin
- Aerospace Research Institute of Special Material and Processing Technology , Beijing 100074 , PR China
| | - Guangtao Li
- Department of Chemistry , Key Laboratory of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , PR China .
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40
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Long A, Fantozzi N, Pinet S, Genin E, Pétuya R, Bégué D, Robert V, Dutasta JP, Gosse I, Martinez A. Selective recognition of acetylcholine over choline by a fluorescent cage. Org Biomol Chem 2019; 17:5253-5257. [PMID: 31106320 DOI: 10.1039/c9ob00931k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A fluorescent hemicryptophane has been synthesized and can be used as a turn on receptor of acetylcholine. A binding constant of 2.4 × 104 M-1 was measured for this neurotransmitter, and its selective and sensitive detection over choline and choline phosphate was achieved. NMR and DFT calculations provide insight into the interactions involved in this selective recognition process.
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Affiliation(s)
- Augustin Long
- Aix Marseille Université, Centrale Marseille, CNRS, ISM2 UMR 7313, 13397, Marseille, France.
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41
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Franconetti A, Frontera A, Mooibroek TJ. Intramolecular π–hole interactions with nitro aromatics. CrystEngComm 2019. [DOI: 10.1039/c9ce01015g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A thorough CSD evaluation and DFT calculations reveal that intramolecular ElR⋯NO2 π-hole interactions can stabilize conformers of nitro aromatics by up to 2–3 kcal mol−1 when ElR and N separated by ≥4 bonds.
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Affiliation(s)
| | - Antonio Frontera
- Department of Chemistry
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Tiddo J. Mooibroek
- van't Hoff Institute for Molecular Sciences
- Universiteit van Amsterdam
- 1098 XH Amsterdam
- The Netherlands
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42
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Shirinfar B, Ahmed N. Diabetes Treatment: Selective Synthetic Receptor for Glucose. ChemistryOpen 2019; 8:84-86. [PMID: 30693171 PMCID: PMC6345218 DOI: 10.1002/open.201800279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 12/27/2018] [Indexed: 12/29/2022] Open
Abstract
A new synthetic receptor has selective and strong interactions with glucose, directing towards future diabetes management. These studies pave the way to design future selective receptors that can potentially be modified with combinations of urea walls having multiple H-binding sites to generate hydrophilic affinities, and the incorporation of promising aromatic systems for hydrophobic π-interactions with glucose CH.
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Affiliation(s)
- Bahareh Shirinfar
- School of ChemistryCardiff University Park Place, Main BuildingCardiffCF10 3ATUK
| | - Nisar Ahmed
- School of ChemistryCardiff University Park Place, Main BuildingCardiffCF10 3ATUK
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43
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Long A, Perraud O, Albalat M, Robert V, Dutasta JP, Martinez A. Helical Chirality Induces a Substrate-Selectivity Switch in Carbohydrates Recognitions. J Org Chem 2018; 83:6301-6306. [DOI: 10.1021/acs.joc.8b00276] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Augustin Long
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille F-13397, France
| | - Olivier Perraud
- Laboratoire de Chimie, CNRS, École Normale Supérieure de Lyon, UCBL 46, Allée d’Italie, Lyon F-69364, France
| | - Muriel Albalat
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille F-13397, France
| | - Vincent Robert
- Laboratoire de Chimie Quantique Institut de Chimie, UMR CNRS 7177, Université de Strasbourg, 4, rue Blaise Pascal, Strasbourg F-67070, France
| | - Jean-Pierre Dutasta
- Laboratoire de Chimie, CNRS, École Normale Supérieure de Lyon, UCBL 46, Allée d’Italie, Lyon F-69364, France
| | - Alexandre Martinez
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille F-13397, France
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44
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Francesconi O, Martinucci M, Badii L, Nativi C, Roelens S. A Biomimetic Synthetic Receptor Selectively Recognising Fucose in Water. Chemistry 2018; 24:6828-6836. [DOI: 10.1002/chem.201800390] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Oscar Francesconi
- Department of Chemistry and INSTM; University of Florence, Polo Scientifico e Tecnologico; 50019 Sesto Fiorentino Firenze Italy
| | - Marco Martinucci
- Department of Chemistry and INSTM; University of Florence, Polo Scientifico e Tecnologico; 50019 Sesto Fiorentino Firenze Italy
| | - Lorenzo Badii
- Department of Chemistry and INSTM; University of Florence, Polo Scientifico e Tecnologico; 50019 Sesto Fiorentino Firenze Italy
| | - Cristina Nativi
- Department of Chemistry and INSTM; University of Florence, Polo Scientifico e Tecnologico; 50019 Sesto Fiorentino Firenze Italy
| | - Stefano Roelens
- Department of Chemistry and INSTM; University of Florence, Polo Scientifico e Tecnologico; 50019 Sesto Fiorentino Firenze Italy
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45
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Abe H, Hashikawa D, Minami T, Ohtani K, Masuda K, Matsumoto S, Inouye M. Hexaphenolic Rigid Cages Prepared by Self-Organization of C 3 v Tridentates. J Org Chem 2018; 83:3132-3141. [PMID: 29473751 DOI: 10.1021/acs.joc.7b03111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Coordination cages were composed by self-organization of rigid C3 v-symmetric heptaarene tridentates and Pd(II) precursors. The heptaarene framework involves one mesitylene, three phenol, and three pyridine moieties, which were connected by Suzuki coupling reactions. The treatment of the tridentates with Pd(dppp)(OTf)2 or Pd(en)(NO3)2 in a 2:3 molar ratio furnished coordination cages, which was ascertained by crystallography, 1H NMR and DOSY measurements, and ESI-TOFMS and UV-vis spectra. The cages have six phenolic hydroxy groups inside and were expected to incorporate hydrogen-bonding guest molecules such as saccharides. CD and DOSY measurements showed that octyl hexoside guests could be incorporated into the cage.
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Affiliation(s)
- Hajime Abe
- Graduate School of Pharmaceutical Sciences , University of Toyama , Toyama 930-0194 , Japan
| | - Daisuke Hashikawa
- Graduate School of Pharmaceutical Sciences , University of Toyama , Toyama 930-0194 , Japan
| | - Takaya Minami
- Graduate School of Environment and Information Sciences , Yokohama National University , Yokohama , Kanagawa 240-8501 , Japan
| | - Kohei Ohtani
- Graduate School of Pharmaceutical Sciences , University of Toyama , Toyama 930-0194 , Japan
| | - Kentaro Masuda
- Graduate School of Pharmaceutical Sciences , University of Toyama , Toyama 930-0194 , Japan
| | - Shinya Matsumoto
- Graduate School of Environment and Information Sciences , Yokohama National University , Yokohama , Kanagawa 240-8501 , Japan
| | - Masahiko Inouye
- Graduate School of Pharmaceutical Sciences , University of Toyama , Toyama 930-0194 , Japan
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46
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Stewart P, Renney CM, Mooibroek TJ, Ferheen S, Davis AP. Maltodextrin recognition by a macrocyclic synthetic lectin. Chem Commun (Camb) 2018; 54:8649-8652. [DOI: 10.1039/c8cc05074k] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This carbohydrate receptor achieves high affinities in water and shows an unusual preference for α-linked maltodextrins.
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Affiliation(s)
- Patrick Stewart
- School of Chemistry of the University of Bristol Cantock's Close
- Bristol
- UK
| | - Charles M. Renney
- School of Chemistry of the University of Bristol Cantock's Close
- Bristol
- UK
| | - Tiddo J. Mooibroek
- van’t Hoff Institute for Molecular Sciences
- University of Amsterdam
- Amsterdam
- The Netherlands
| | - Sadia Ferheen
- School of Chemistry of the University of Bristol Cantock's Close
- Bristol
- UK
| | - Anthony P. Davis
- School of Chemistry of the University of Bristol Cantock's Close
- Bristol
- UK
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