1
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Metal coordination to a deep cavitand promotes binding selectivities in water. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.03.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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2
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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] [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 [Pd2L4]4+ cage could be equipped with guanidinium‐terminating dendrons to give the water soluble [Pd2L4][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 M2L4 cages for carbohydrates and other small molecules.
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Affiliation(s)
- Xander Schaapkens
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (The, Netherlands
| | - Roy N van Sluis
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (The, Netherlands
| | - Eduard O Bobylev
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (The, Netherlands
| | - Joost N H Reek
- 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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3
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Timmer BJJ, Mooibroek TJ. A Simple Strategy to Obtain Synthetic Ca
2+
‐Dependent Lectin Mimics. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Brian J. J. Timmer
- Van ‘t Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - 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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4
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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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5
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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: 3] [Impact Index Per Article: 1.0] [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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6
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Schaapkens X, Holdener JH, Tolboom J, Bobylev EO, Reek JNH, Mooibroek TJ. An Octa-Urea [Pd 2 L 4 ] 4+ Cage that Selectively Binds to n-octyl-α-D-Mannoside. Chemphyschem 2021; 22:1187-1192. [PMID: 33878234 PMCID: PMC8252426 DOI: 10.1002/cphc.202100229] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/13/2021] [Indexed: 12/11/2022]
Abstract
Designing compounds for the selective molecular recognition of carbohydrates is a challenging task for supramolecular chemists. Macrocyclic compounds that incorporate isophtalamide or bisurea spacers linking two aromatic moieties have proven effective for the selective recognition of all-equatorial carbohydrates. Here, we explore the molecular recognition properties of an octa-urea [Pd2 L4 ]4+ cage complex (4). It was found that small anions like NO3- and BF4- bind inside 4 and inhibit binding of n-octyl glycosides. When the large non-coordinating anion 'BArF ' was used, 4 showed excellent selectivity towards n-octyl-α-D-Mannoside with binding in the order of Ka ≈16 M-1 versus non-measurable affinities for other glycosides including n-octyl-β-D-Glucoside (in CH3 CN/H2 O 91 : 9).
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Affiliation(s)
- Xander Schaapkens
- Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Joël H. Holdener
- Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Jens Tolboom
- Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Eduard O. Bobylev
- Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Joost N. H. Reek
- 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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7
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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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8
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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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9
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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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10
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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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11
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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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12
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Zheng R, Wang Y, Pan J, Malik HA, Zhang H, Jia C, Weng X, Xie J, Deng L. Toward Easy-to-Assemble, Large-Area Smart Windows: All-in-One Cross-Linked Electrochromic Material and Device. ACS APPLIED MATERIALS & INTERFACES 2020; 12:27526-27536. [PMID: 32423198 DOI: 10.1021/acsami.0c02337] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Conventional electrochromic devices with a sandwich structure consist of multiple interfaces, which enhance electron trapping on the interfaces. Furthermore, crack generation in the electrochromic layer is inevitable due to repeated ion insertion and extraction during the service process. These problems increase the fabrication complexity and lead to poor performance and stability, which are severely limiting and prime concerns for the future development of the electrochromism field. Here, a strategy of synthesizing an all-in-one self-healing electrochromic material, TAFPy-MA, is presented, which has been utilized for the fabrication of a high-reliability, large-scale, and easy-assembly smart electrochromic window. The all-in-one self-healing electrochromic material can undergo in situ redox reactions with Li+ ions to reduce resistance transfer and avoid interface obstacles, and the reversible Diels-Alder cross-linking network structure can heal the cracks to improve the reliability of the electrochromic layer. High ion diffusivity (1.13 × 10-5 cm2 s-1), rapid color switching (3.9/3.7 s), high coloration efficiency (413 cm2 C-1), excellent stability (sustains 88.7% after 1000 cycles) and reliability (crack can be healed in 110 s), and large-scale smart windows (30 × 35 cm2) are achieved using the all-in-one electrochromic material, which exhibits fascinating and promising features for a wide range of applications in buildings, airplanes, etc.
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Affiliation(s)
- Rongzong Zheng
- State Key Laboratory of Electronic Thin Films and Integrated Devices, National Engineering Research Center of Electromagnetic Radiation Control Materials, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Yi Wang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, National Engineering Research Center of Electromagnetic Radiation Control Materials, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Jianbo Pan
- State Key Laboratory of Electronic Thin Films and Integrated Devices, National Engineering Research Center of Electromagnetic Radiation Control Materials, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Haseeb Ashraf Malik
- State Key Laboratory of Electronic Thin Films and Integrated Devices, National Engineering Research Center of Electromagnetic Radiation Control Materials, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Hongping Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, P. R. China
| | - Chunyang Jia
- State Key Laboratory of Electronic Thin Films and Integrated Devices, National Engineering Research Center of Electromagnetic Radiation Control Materials, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Xiaolong Weng
- State Key Laboratory of Electronic Thin Films and Integrated Devices, National Engineering Research Center of Electromagnetic Radiation Control Materials, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Jianliang Xie
- State Key Laboratory of Electronic Thin Films and Integrated Devices, National Engineering Research Center of Electromagnetic Radiation Control Materials, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Longjiang Deng
- State Key Laboratory of Electronic Thin Films and Integrated Devices, National Engineering Research Center of Electromagnetic Radiation Control Materials, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
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13
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Bartl J, Kubik S. Anion Binding of a Cyclopeptide-Derived Molecular Cage in Aqueous Solvent Mixtures. Chempluschem 2020; 85:963-969. [PMID: 32406613 DOI: 10.1002/cplu.202000255] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/05/2020] [Indexed: 11/06/2022]
Abstract
A molecular cage consisting of two cyclic hexapeptides with an alternating sequence of (2S,4S)-4-aminoproline and 6-aminopicolinic acid subunits, covalently linked via three diglycolic acid subunits, interacts with a variety of inorganic anions in acetonitrile/water. In the respective complexes, the anion resides in a cavity between the two cyclopeptide rings where it interacts with six converging NH groups. The cage binds sulfate anions in acetonitrile/water, 2 : 1 (v/v) with a log Ka of 6.7, ca. 2.5 orders of magnitude stronger than an analogous bis(cyclopeptide) with only one linker whose sulfate affinity log Ka amounts to 4.3. The preorganization induced by the three linking units is thus beneficial for sulfate binding. In addition, these linkers cause the dissociation of the sulfate complex to have a substantial Gibbs free energy of activation ΔG≠ of 68.9 kJ mol-1 and they also seem to affect anion selectivity as illustrated by the different effects some anions produce on the 1 H NMR spectra of the triply and singly-linked bis(cyclopeptides). Such anion binding cages represent promising scaffolds to mimic natural anion receptors such as the sulfate-binding protein.
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Affiliation(s)
- Julia Bartl
- Fachbereich Chemie - Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, 67663, Kaiserslautern, Germany
| | - Stefan Kubik
- Fachbereich Chemie - Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, 67663, Kaiserslautern, Germany
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14
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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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15
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Francesconi O, Cicero F, Nativi C, Roelens S. A Preorganized Hydrogen-Bonding Motif for the Molecular Recognition of Carbohydrates. Chemphyschem 2020; 21:257-262. [PMID: 31793133 DOI: 10.1002/cphc.201900907] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/28/2019] [Indexed: 12/18/2022]
Abstract
The choice between adaptive and preorganized architectures, or of the most effective hydrogen bonding groups to be selected, are dilemmas that supramolecular chemists must address in designing synthetic receptors for such a challenging guest as carbohydrates. In this paper, structurally related architectures featuring two alternative hydrogen bonding motifs were compared to ascertain the structural and functional origin of their binding differences and the advantages that can be expected in monosaccharide recognition. A set of structurally related macrocyclic receptors were prepared, and their binding properties were measured by NMR and ITC techniques in chloroform vs a common saccharidic target, namely, the β-octyl glycoside of D-glucose. Results showed that the diaminocarbazolic motif, recently reported as the constituting unit of highly effective receptors for saccharides in water, is a superior hydrogen bonding motif compared to the previously described diaminopyrrolic motif, which was successfully employed in molecular recognition of carbohydrates in polar organic solvents, due to intrinsic structural and functional factors, rather than to hydrophobic contributions. In addition, the occurrence of a rare example of a thermodynamic template effect exerted by the beta-glucoside has been ascertained, enhancing the synthesis outcome of the otherwise low yielding preparation of the described macrocyclic receptors.
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Affiliation(s)
- Oscar Francesconi
- Department of Chemistry "Ugo Schiff" and INSTM, University of Florence Polo Scientifico e Tecnologico, 50019, Sesto Fiorentino, Firenze, Italy
| | - Federico Cicero
- Department of Chemistry "Ugo Schiff" and INSTM, University of Florence Polo Scientifico e Tecnologico, 50019, Sesto Fiorentino, Firenze, Italy
| | - Cristina Nativi
- Department of Chemistry "Ugo Schiff" and INSTM, University of Florence Polo Scientifico e Tecnologico, 50019, Sesto Fiorentino, Firenze, Italy
| | - Stefano Roelens
- Department of Chemistry "Ugo Schiff" and INSTM, University of Florence Polo Scientifico e Tecnologico, 50019, Sesto Fiorentino, Firenze, Italy
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16
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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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17
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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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18
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Yin X, Li W, Yu B. Synthesis of Pashinintide A, a Natural Cyclic Hexapeptide Supposedly Capable of Forming a Complex with Sucrose. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.201900663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xuejian Yin
- State Key Laboratory of Bioorganic and Natural Products Chemistry Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Wei Li
- Department of Medicinal ChemistryChina Pharmaceutical University 639 Longmian Avenue, Nanjing Jiangsu 211198 China
| | - Biao Yu
- State Key Laboratory of Bioorganic and Natural Products Chemistry Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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19
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Francesconi O, Roelens S. Biomimetic Carbohydrate‐Binding Agents (CBAs): Binding Affinities and Biological Activities. Chembiochem 2019; 20:1329-1346. [DOI: 10.1002/cbic.201800742] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Oscar Francesconi
- Department of Chemistry and INSTMUniversity of Florence Polo Scientifico e Tecnologico 50019 Sesto Fiorentino, Firenze Italy
| | - Stefano Roelens
- Department of Chemistry and INSTMUniversity of Florence Polo Scientifico e Tecnologico 50019 Sesto Fiorentino, Firenze Italy
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20
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Sapotta M, Hofmann A, Bialas D, Würthner F. A Water-Soluble Perylene Bisimide Cyclophane as a Molecular Probe for the Recognition of Aromatic Alkaloids. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813559] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Meike Sapotta
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Anja Hofmann
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - David Bialas
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Frank Würthner
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC); Universität Würzburg; Theodor-Boveri-Weg 97074 Würzburg Germany
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21
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Sapotta M, Hofmann A, Bialas D, Würthner F. A Water-Soluble Perylene Bisimide Cyclophane as a Molecular Probe for the Recognition of Aromatic Alkaloids. Angew Chem Int Ed Engl 2019; 58:3516-3520. [DOI: 10.1002/anie.201813559] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Meike Sapotta
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Anja Hofmann
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - David Bialas
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Frank Würthner
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC); Universität Würzburg; Theodor-Boveri-Weg 97074 Würzburg Germany
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22
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Saha S, Kauffmann B, Ferrand Y, Huc I. Selective Encapsulation of Disaccharide Xylobiose by an Aromatic Foldamer Helical Capsule. Angew Chem Int Ed Engl 2018; 57:13542-13546. [DOI: 10.1002/anie.201808370] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Subrata Saha
- UMR 5248-CBMN, Univ. Bordeaux-CNRS-; Institut Polytechnique de Bordeaux; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33600 Pessac France
| | - Brice Kauffmann
- Université de Bordeaux; CNRS; INSERM, UMS3033; Institut Européen de Chimie et Biologie (IECB); 2 rue Escarpit 33600 Pessac France
| | - Yann Ferrand
- UMR 5248-CBMN, Univ. Bordeaux-CNRS-; Institut Polytechnique de Bordeaux; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33600 Pessac France
| | - Ivan Huc
- UMR 5248-CBMN, Univ. Bordeaux-CNRS-; Institut Polytechnique de Bordeaux; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33600 Pessac France
- Department Pharmazie; Ludwig-Maximilians-Universität; Butenandtstr. 5-13 81377 München Germany
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23
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Saha S, Kauffmann B, Ferrand Y, Huc I. Selective Encapsulation of Disaccharide Xylobiose by an Aromatic Foldamer Helical Capsule. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808370] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Subrata Saha
- UMR 5248-CBMN, Univ. Bordeaux-CNRS-; Institut Polytechnique de Bordeaux; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33600 Pessac France
| | - Brice Kauffmann
- Université de Bordeaux; CNRS; INSERM, UMS3033; Institut Européen de Chimie et Biologie (IECB); 2 rue Escarpit 33600 Pessac France
| | - Yann Ferrand
- UMR 5248-CBMN, Univ. Bordeaux-CNRS-; Institut Polytechnique de Bordeaux; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33600 Pessac France
| | - Ivan Huc
- UMR 5248-CBMN, Univ. Bordeaux-CNRS-; Institut Polytechnique de Bordeaux; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33600 Pessac France
- Department Pharmazie; Ludwig-Maximilians-Universität; Butenandtstr. 5-13 81377 München Germany
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24
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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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25
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Kusaba S, Yamashina M, Akita M, Kikuchi T, Yoshizawa M. Hydrophilic Oligo(lactic acid)s Captured by a Hydrophobic Polyaromatic Cavity in Water. Angew Chem Int Ed Engl 2018; 57:3706-3710. [DOI: 10.1002/anie.201800432] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Shunsuke Kusaba
- Laboratory for Chemistry and Life Science, Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Masahiro Yamashina
- Laboratory for Chemistry and Life Science, Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science, Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Takashi Kikuchi
- Rigaku Corporation; 3-9-12 Matsubaracho, Akishima Tokyo 196-8666 Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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26
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Kusaba S, Yamashina M, Akita M, Kikuchi T, Yoshizawa M. Hydrophilic Oligo(lactic acid)s Captured by a Hydrophobic Polyaromatic Cavity in Water. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800432] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Shunsuke Kusaba
- Laboratory for Chemistry and Life Science, Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Masahiro Yamashina
- Laboratory for Chemistry and Life Science, Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science, Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Takashi Kikuchi
- Rigaku Corporation; 3-9-12 Matsubaracho, Akishima Tokyo 196-8666 Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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27
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Ohishi Y, Abe H, Inouye M. Saccharide Recognition and Helix Formation in Water with an Amphiphilic Pyridine-Phenol Alternating Oligomer. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701522] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yuki Ohishi
- Graduate School of Pharmaceutical Sciences; University of Toyama; 930-0194 Toyama Japan
| | - Hajime Abe
- Graduate School of Pharmaceutical Sciences; University of Toyama; 930-0194 Toyama Japan
| | - Masahiko Inouye
- Graduate School of Pharmaceutical Sciences; University of Toyama; 930-0194 Toyama Japan
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28
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Abe H, Yoneda T, Ohishi Y, Inouye M. D3h-Symmetrical Shape-Persistent Macrocycles Consisting of Pyridine-Acetylene-Phenol Conjugates as an Efficient Host Architecture for Saccharide Recognition. Chemistry 2016; 22:18944-18952. [DOI: 10.1002/chem.201603987] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Hajime Abe
- Graduate School of Pharmaceutical Sciences; University of Toyama, Sugitani 2630; Toyama 930-0194 Japan
| | - Tetsuhiro Yoneda
- Graduate School of Pharmaceutical Sciences; University of Toyama, Sugitani 2630; Toyama 930-0194 Japan
| | - Yuki Ohishi
- Graduate School of Pharmaceutical Sciences; University of Toyama, Sugitani 2630; Toyama 930-0194 Japan
| | - Masahiko Inouye
- Graduate School of Pharmaceutical Sciences; University of Toyama, Sugitani 2630; Toyama 930-0194 Japan
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29
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Wang J, Jang Y, Khedkar JK, Koo JY, Kim Y, Lee CJ, Rhee YM, Kim K. How Does Solvation Affect the Binding of Hydrophilic Amino Saccharides to Cucurbit[7]uril with Exceptional Anomeric Selectivity? Chemistry 2016; 22:15791-15799. [PMID: 27632939 DOI: 10.1002/chem.201602810] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Indexed: 01/06/2023]
Abstract
Cucurbit[7]uril (CB[7]) is known to bind strongly to hydrophilic amino saccharide guests with exceptional α-anomer selectivities under aqueous conditions. Single-crystal X-ray crystallography and computational methods were used to elucidate the reason behind this interesting phenomenon. The crystal structures of protonated galactosamine (GalN) and glucosamine (GluN) complexes confirm the inclusion of α anomers inside CB[7] and disclose the details of the host-guest binding. Whereas computed gas-phase structures agree with these crystal structures, gas-phase binding free energies show preferences for the β-anomer complexes over their α counterparts, in striking contrast to the experimental results under aqueous conditions. However, when the solvation effect is considered, the binding structures drastically change and the preference for the α anomers is recovered. The α anomers also tend to bind more tightly and leave less space in the CB[7] cavity toward inclusion of only one water molecule, whereas loosely bound β anomers leave more space toward accommodating two water molecules, with markedly different hydrogen-bonding natures. Surprisingly, entropy seems to contribute significantly to both anomeric discrimination and binding. This suggests that of all the driving factors for the strong complexation of the hydrophilic amino saccharide guests, water mediation plays a crucial role in the anomer discrimination.
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Affiliation(s)
- Jianping Wang
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea
| | - Yoonjung Jang
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea
| | - Jayshree K Khedkar
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea
| | - Jin Young Koo
- Division of Advanced Materials Science, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea
| | - Yonghwi Kim
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea
| | - Chang Jun Lee
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea
| | - Young Min Rhee
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea. .,Department of Chemistry, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea.
| | - Kimoon Kim
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea. .,Department of Chemistry, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea. .,Division of Advanced Materials Science, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea.
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30
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Carter TS, Mooibroek TJ, Stewart PFN, Crump MP, Galan MC, Davis AP. Platform Synthetic Lectins for Divalent Carbohydrate Recognition in Water. Angew Chem Int Ed Engl 2016; 55:9311-5. [PMID: 27312071 PMCID: PMC5006853 DOI: 10.1002/anie.201603082] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Indexed: 12/14/2022]
Abstract
Biomimetic carbohydrate receptors ("synthetic lectins") have potential as agents for biological research and medicine. However, although effective strategies are available for "all-equatorial" carbohydrates (glucose, etc.), the recognition of other types of saccharide under natural (aqueous) conditions is less well developed. Herein we report a new approach based on a pyrene platform with polar arches extending from aryl substituents. The receptors are compatible with axially substituted carbohydrates, and also feature two identical binding sites, thus mimicking the multivalency observed for natural lectins. A variant with negative charges forms 1:2 host/guest complexes with aminosugars, with K1 >3000 m(-1) for axially substituted mannosamine, whereas a positively charged version binds the important α-sialyl unit with K1 ≈1300 m(-1) .
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Affiliation(s)
- Tom S Carter
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - Tiddo J Mooibroek
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - Patrick F N Stewart
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - Matthew P Crump
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - M Carmen Galan
- 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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31
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Carter TS, Mooibroek TJ, Stewart PFN, Crump MP, Galan MC, Davis AP. Platform Synthetic Lectins for Divalent Carbohydrate Recognition in Water. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603082] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tom S. Carter
- School of ChemistryUniversity of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Tiddo J. Mooibroek
- School of ChemistryUniversity of Bristol Cantock's Close Bristol BS8 1TS UK
| | | | - Matthew P. Crump
- School of ChemistryUniversity of Bristol Cantock's Close Bristol BS8 1TS UK
| | - M. Carmen Galan
- School of ChemistryUniversity of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Anthony P. Davis
- School of ChemistryUniversity of Bristol Cantock's Close Bristol BS8 1TS UK
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