1
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Droguett K, Quintero GE, Santos JG, Aliaga ME. Advancement in supramolecular control of organic reactivity induced by cucurbit[n]urils. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-022-01172-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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Ab initio investigation of substituent effects on the excited electronic states of flavylium cation analogues of anthocyanin pigments. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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3
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Cruz L, Basílio N, Mateus N, de Freitas V, Pina F. Natural and Synthetic Flavylium-Based Dyes: The Chemistry Behind the Color. Chem Rev 2021; 122:1416-1481. [PMID: 34843220 DOI: 10.1021/acs.chemrev.1c00399] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Flavylium compounds are a well-known family of pigments because they are prevalent in the plant kingdom, contributing to colors over a wide range from shades of yellow-red to blue in fruits, flowers, leaves, and other plant parts. Flavylium compounds include a large variety of natural compound classes, namely, anthocyanins, 3-deoxyanthocyanidins, auronidins, and their respective aglycones as well as anthocyanin-derived pigments (e.g., pyranoanthocyanins, anthocyanin-flavan-3-ol dimers). During the past few decades, there has been increasing interest among chemists in synthesizing different flavylium compounds that mimic natural structures but with different substitution patterns that present a variety of spectroscopic characteristics in view of their applications in different industrial fields. This Review provides an overview of the chemistry of flavylium-based compounds, in particular, the synthetic and enzymatic approaches and mechanisms reported in the literature for obtaining different classes of pigments, their physical-chemical properties in relation to their pH-dependent equilibria network, and their chemical and enzymatic degradation. The development of flavylium-based systems is also described throughout this Review for emergent applications to explore some of the physical-chemical properties of the multistate of species generated by these compounds.
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Affiliation(s)
- Luis Cruz
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Nuno Basílio
- LAQV-REQUIMTE, Department of Chemistry, Faculty of Sciences and Technology, New University of Lisbon, 2829-516 Caparica, Portugal
| | - Nuno Mateus
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Victor de Freitas
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Fernando Pina
- LAQV-REQUIMTE, Department of Chemistry, Faculty of Sciences and Technology, New University of Lisbon, 2829-516 Caparica, Portugal
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4
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Miskolczy Z, Megyesi M, Sinn S, Biedermann F, Biczók L. Simultaneous analyte indicator binding assay (SBA) for the monitoring of reversible host-guest complexation kinetics. Chem Commun (Camb) 2021; 57:12663-12666. [PMID: 34775505 DOI: 10.1039/d1cc04888k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Very little information is available on the kinetics of the self-assembly and dissociation of optically silent building blocks despite the importance of such data in the rational design of tailor-made host-guest systems. We introduce here a novel time-resolved method that enables the simultaneous determination of complex formation and complex dissociation rate constants for inclusion-type host-guest complexes. The simultaneous analyte indicator binding assay (SBA) gives also direct access to binding affinities, thus largely simplifying the experimental procedure for a full kinetic and thermodynamic characterisation of host-guest systems.
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Affiliation(s)
- Zsombor Miskolczy
- Research Centre for Natural Sciences, Institute of Materials and Environmental, Chemistry, Eötvös Loránd Research Network (ELKH), P.O. Box 286, 1519 Budapest, Hungary.
| | - Mónika Megyesi
- Research Centre for Natural Sciences, Institute of Materials and Environmental, Chemistry, Eötvös Loránd Research Network (ELKH), P.O. Box 286, 1519 Budapest, Hungary.
| | - Stephan Sinn
- Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology (INT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Frank Biedermann
- Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology (INT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - László Biczók
- Research Centre for Natural Sciences, Institute of Materials and Environmental, Chemistry, Eötvös Loránd Research Network (ELKH), P.O. Box 286, 1519 Budapest, Hungary.
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5
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Anastácio R, Seco A, Mateus P, Parola AJ, Basílio N. Exploring the pH-dependent kinetics, thermodynamics and photochemistry of a flavylium-based pseudorotaxane. PURE APPL CHEM 2021. [DOI: 10.1515/pac-2021-0603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Flavylium-based molecular switches are attractive molecular components to devise stimuli-responsive host-guest systems such as rotaxanes and pseudorotaxanes. These compounds display a pH-dependent reaction network of several species that reversibly interconvert within different time scales. Therefore, to explore and take profit of exceptional stimuli-responsive properties of these systems, detailed kinetic and thermodynamic characterizations are often required. In this work, we present the results of such characterization for a new flavylium compound decorated with a trimethylalkylammonium substituent designed to form a pseudorotaxane with cucurbit[7]uril (CB7). The formation of the pseudorotaxane was characterized in detail, and the thermodynamic and kinetic aspects of the flavylium interconversion reactions in the assembly were investigated and compared with the free molecular switch.
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Affiliation(s)
- Rita Anastácio
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia , Universidade NOVA de Lisboa , 2829-516 Caparica , Portugal
| | - André Seco
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia , Universidade NOVA de Lisboa , 2829-516 Caparica , Portugal
| | - Pedro Mateus
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia , Universidade NOVA de Lisboa , 2829-516 Caparica , Portugal
| | - A. Jorge Parola
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia , Universidade NOVA de Lisboa , 2829-516 Caparica , Portugal
| | - Nuno Basílio
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia , Universidade NOVA de Lisboa , 2829-516 Caparica , Portugal
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6
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Silva GM, Silva KM, Silva CP, Gonçalves JM, Quina FH. Hybrid Pigments from Anthocyanin Analogues and Synthetic Clay Minerals. ACS OMEGA 2020; 5:26592-26600. [PMID: 33110987 PMCID: PMC7581255 DOI: 10.1021/acsomega.0c03354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
Flavylium cations are synthetic analogues of anthocyanins, the natural plant pigments that are responsible for the majority of the red, blue, and purple colors of flowers, fruits, and leaves. Unlike anthocyanins, the properties and reactivity of flavylium cations can be manipulated by the nature and position of substituents on the flavylium cation chromophore. Currently, the most promising strategies for stabilizing the color of anthocyanins and flavylium cations appear to be to intercalate and/or adsorb them on solid surfaces and/or in confined spaces. We report here that hybrid pigments with improved thermal stability, fluorescence, and attractive colors are produced by the cation-exchange-mediated adsorption of flavylium cations (FL) on two synthetic clays, the mica-montmorillonite SYn-1, and the laponite SYnL-1. Compared to the FL/SYn-1 hybrid pigments, the FL/SYnL-1 pigments exhibited improved thermal stability as judged by color retention, better preferential adsorption of the cationic form of FL1 at neutral to mildly basic pH (pH 7-8), and lower susceptibility to color changes at pH 10. Although both clays adsorb the cationic form on their external surfaces, SYnL-1 gave more evidence of adsorption in the interlayer regions of the clay. This interlayer adsorption appears to be the contributing factor to the better properties of the FL/SYnL-1 hybrid pigments, pointing to this clay to be a promising inorganic matrix for the development of brightly colored, thermally more stable hybrid pigments based on cationic analogues of natural plant pigments.
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Affiliation(s)
- Gustavo
Thalmer M. Silva
- Instituto
de Química, Universidade de
São Paulo, Av. Lineu Prestes 748, Cidade
Universitária, São Paulo 05508-000, Brazil
| | - Karen Magno Silva
- Instituto
de Química, Universidade de
São Paulo, Av. Lineu Prestes 748, Cidade
Universitária, São Paulo 05508-000, Brazil
- Instituto
Federal de Educação, Ciência
e Tecnologia de São Paulo, Campus São Paulo, 01109-010 São Paulo, Brazil
| | - Cassio P. Silva
- Instituto
de Química, Universidade de
São Paulo, Av. Lineu Prestes 748, Cidade
Universitária, São Paulo 05508-000, Brazil
| | - Josué M. Gonçalves
- Instituto
de Química, Universidade de
São Paulo, Av. Lineu Prestes 748, Cidade
Universitária, São Paulo 05508-000, Brazil
| | - Frank H. Quina
- Instituto
de Química, Universidade de
São Paulo, Av. Lineu Prestes 748, Cidade
Universitária, São Paulo 05508-000, Brazil
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7
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Thomas SS, Tang H, Bohne C. Noninnocent Role of Na+ Ions in the Binding of the N-Phenyl-2-naphthylammonium Cation as a Ditopic Guest with Cucurbit[7]uril. J Am Chem Soc 2019; 141:9645-9654. [DOI: 10.1021/jacs.9b03691] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Suma S. Thomas
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
| | - Hao Tang
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
| | - Cornelia Bohne
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
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8
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Liu YC, Nau WM, Hennig A. A supramolecular five-component relay switch that exposes the mechanistic competition of dissociative versus associative binding to cucurbiturils by ratiometric fluorescence monitoring. Chem Commun (Camb) 2019; 55:14123-14126. [DOI: 10.1039/c9cc07165b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A putrescine derivative of aminomethyladamantane is established as a ditopic guest with two mutually exclusive binding sites for cucurbit[6]uril and cucurbit[7]uril.
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Affiliation(s)
- Yan-Cen Liu
- Department of Life Sciences and Chemistry
- Jacobs University Bremen gGmbH
- 28759 Bremen
- Germany
| | - Werner M. Nau
- Department of Life Sciences and Chemistry
- Jacobs University Bremen gGmbH
- 28759 Bremen
- Germany
| | - Andreas Hennig
- Department of Life Sciences and Chemistry
- Jacobs University Bremen gGmbH
- 28759 Bremen
- Germany
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9
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Silva GTM, da Silva KM, Silva CP, Rodrigues ACB, Oake J, Gehlen MH, Bohne C, Quina FH. Highly fluorescent hybrid pigments from anthocyanin- and red wine pyranoanthocyanin-analogs adsorbed on sepiolite clay. Photochem Photobiol Sci 2019; 18:1750-1760. [PMID: 31107486 DOI: 10.1039/c9pp00141g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Flavylium cations serve as models for the chemical and photochemical reactivity of anthocyanins, the natural plant pigment responsible for many of the red, blue and purple colors of fruits and flowers. Likewise, pyranoflavylium cations serve as models of the fundamental chromophoric moiety of pyranoanthocyanins, molecules that can form from reactions of grape anthocyanins in red wines during their maturation. In the present work, hybrid pigments are prepared by the adsorption of a series of five synthetic flavylium cations (FL) and five synthetic pyranoflavylium cations (PFL) on sepiolite clay (SEP). The FL are smaller in size than the PFL, but both can in principle fit into the tunnels and/or external grooves (with dimensions of 3.7 × 10.6 Å) of SEP. Measurements of the fluorescence quantum yields of the adsorbed dyes indicate that they are at least as fluorescent as in acidic acetonitrile solution, and in a few cases substantially more fluorescent. The observation of biexponential fluorescence decays is consistent with emission from dye molecules adsorbed at two distinct sites, presumably tunnels and grooves. These hybrid materials also have improved properties in terms of stability of the color in contact with pH 10 aqueous solution and resistance to thermal degradation of the dye. SEP thus appears to be a promising substrate for the development of highly fluorescent flavylium or pyranoflavylium cation-derived hybrid pigments with improved color and thermal stability.
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Affiliation(s)
- Gustavo Thalmer M Silva
- Instituto de Química, Universidade de São Paulo, Av. Lineu Prestes 748, Cidade Universitária, São Paulo 05508-000, Brazil.
| | - Karen M da Silva
- Instituto Federal de Educação, Ciência e Tecnologia de São Paulo, Campus São Paulo, 01109-010 São Paulo, Brazil
| | - Cassio P Silva
- Instituto de Química, Universidade de São Paulo, Av. Lineu Prestes 748, Cidade Universitária, São Paulo 05508-000, Brazil.
| | | | - Jessy Oake
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, PO Box 1700 STN CSC, Victoria, BC, CanadaV8 W 2Y2
| | - Marcelo H Gehlen
- Instituto de Química de São Carlos, Universidade de São Paulo, 13566-590 São Carlos, SP, Brazil
| | - Cornelia Bohne
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, PO Box 1700 STN CSC, Victoria, BC, CanadaV8 W 2Y2
| | - Frank H Quina
- Instituto de Química, Universidade de São Paulo, Av. Lineu Prestes 748, Cidade Universitária, São Paulo 05508-000, Brazil.
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10
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Ahmed SA, Seth (Duley) S, Gautam RK, Seth D. Inclusion of a coumarin derivative inside the macrocyclic hosts: A spectroscopic, thermodynamic and theoretical investigation. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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Ahmed SA, Seth D. Thermodynamic analysis of binding of benzimidazole derivative with cucurbit[7]uril: A isothermal titration calorimetry study. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.01.082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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12
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Tan C, Selig MJ, Abbaspourrad A. Anthocyanin stabilization by chitosan-chondroitin sulfate polyelectrolyte complexation integrating catechin co-pigmentation. Carbohydr Polym 2018; 181:124-131. [DOI: 10.1016/j.carbpol.2017.10.034] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 08/05/2017] [Accepted: 10/06/2017] [Indexed: 01/25/2023]
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13
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da Silva C, Pioli RM, Liu L, Zheng S, Zhang M, Silva GTM, Carneiro VMT, Quina FH. Improved Synthesis of Analogues of Red Wine Pyranoanthocyanin Pigments. ACS OMEGA 2018; 3:954-960. [PMID: 31457941 PMCID: PMC6641511 DOI: 10.1021/acsomega.7b01955] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 01/16/2018] [Indexed: 06/10/2023]
Abstract
An improved procedure is described for the preparation of pyranoflavylium cations from the reaction of 5,7-dihydroxy-4-methylflavylium cation with aromatic aldehydes. Modifications of the procedure of Chassaing et al. (Tetrahedron Lett. 2008, 49, 6999-7004; Tetrahedron 2015, 71, 3066-3078) circumvent the reported restriction to electron-rich benzaldehydes and provide access to a wide variety of substituted pyranoflavylium cations, including those with electron-withdrawing substituents or an attached heterocyclic or polycyclic aromatic ring. This opens the way for studies of substituent and structural effects on the ground and excited states of these pyranoanthocyanin analogues, the behavior of which should mirror fundamental aspects of the chemistry and photophysics of the pyranoanthocyanin chromophores present in mature red wines.
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Affiliation(s)
- Cassio
Pacheco da Silva
- Instituto
de Química, Universidade de São
Paulo, Av. Lineu Prestes 748, Cidade Universitária, São Paulo 05508-000, Brazil
| | - Renan Moraes Pioli
- Instituto
de Química, Universidade de São
Paulo, Av. Lineu Prestes 748, Cidade Universitária, São Paulo 05508-000, Brazil
| | - Liu Liu
- Instituto
de Química, Universidade de São
Paulo, Av. Lineu Prestes 748, Cidade Universitária, São Paulo 05508-000, Brazil
- School
of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072 China
| | - Shasha Zheng
- Instituto
de Química, Universidade de São
Paulo, Av. Lineu Prestes 748, Cidade Universitária, São Paulo 05508-000, Brazil
- School
of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072 China
| | - Mengjiao Zhang
- Instituto
de Química, Universidade de São
Paulo, Av. Lineu Prestes 748, Cidade Universitária, São Paulo 05508-000, Brazil
- School
of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072 China
| | | | - Vânia Maria Teixeira Carneiro
- Departamento
de Química, Universidade Federal
de Viçosa, Av. Peter Henry Rolfs s/n, Campus Universitário, 36570-900 Viçosa, Minas Gerais, Brazil
| | - Frank H. Quina
- Instituto
de Química, Universidade de São
Paulo, Av. Lineu Prestes 748, Cidade Universitária, São Paulo 05508-000, Brazil
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14
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Affiliation(s)
- Stephan Sinn
- Institute of Nanotechnology (INT); Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland/Germany
| | - Frank Biedermann
- Institute of Nanotechnology (INT); Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland/Germany
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15
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Zubillaga A, Ferreira P, Parola AJ, Gago S, Basílio N. pH-Gated photoresponsive shuttling in a water-soluble pseudorotaxane. Chem Commun (Camb) 2018; 54:2743-2746. [DOI: 10.1039/c8cc00688a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Phototriggered ring shuttling in a water-soluble fluorescent pseudorotaxane can be enabled and disabled at different pH values.
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Affiliation(s)
- A. Zubillaga
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departmento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa
- 2829-516 Caparica
- Portugal
| | - P. Ferreira
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departmento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa
- 2829-516 Caparica
- Portugal
| | - A. J. Parola
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departmento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa
- 2829-516 Caparica
- Portugal
| | - S. Gago
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departmento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa
- 2829-516 Caparica
- Portugal
| | - N. Basílio
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departmento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa
- 2829-516 Caparica
- Portugal
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16
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Miskolczy Z, Biczók L, Lendvay G. Substituent effect on the dynamics of the inclusion complex formation between protoberberine alkaloids and cucurbit[7]uril. Phys Chem Chem Phys 2018; 20:15986-15994. [DOI: 10.1039/c8cp01845f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The dynamics and activation parameters of alkaloid entry into and exit from cucurbit[7]uril significantly depend on the substitution pattern.
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Affiliation(s)
- Zsombor Miskolczy
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences, Hungarian Academy of Sciences
- 1519 Budapest
- Hungary
| | - László Biczók
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences, Hungarian Academy of Sciences
- 1519 Budapest
- Hungary
| | - György Lendvay
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences, Hungarian Academy of Sciences
- 1519 Budapest
- Hungary
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17
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QUINA FRANKH, BASTOS ERICKL. Chemistry Inspired by the Colors of Fruits, Flowers and Wine. ACTA ACUST UNITED AC 2018; 90:681-695. [DOI: 10.1590/0001-3765201820170492] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 08/25/2017] [Indexed: 11/22/2022]
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18
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Macartney DH. Cucurbit[n]uril Host-Guest Complexes of Acids, Photoacids, and Super Photoacids. Isr J Chem 2017. [DOI: 10.1002/ijch.201700096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Donal H. Macartney
- Department of Chemistry; Queen's University; 90 Bader Lane, Kingston ON Canada K7L3N6
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19
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Kuok KI, Li S, Wyman IW, Wang R. Cucurbit[7]uril: an emerging candidate for pharmaceutical excipients. Ann N Y Acad Sci 2017; 1398:108-119. [PMID: 28692768 DOI: 10.1111/nyas.13376] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 04/10/2017] [Accepted: 04/12/2017] [Indexed: 12/15/2022]
Abstract
Cucurbit[7]uril (CB[7]), belonging to the cucurbit[n]uril family (CB[n], n = 5-8, 10, or 13-15), may form host-guest complexes with a variety of small molecules of biomedical interest. The physical and chemical properties of the complexed drugs are often improved as a result of this complexation, suggesting the potential application of CB[7] as a pharmaceutical excipient. This review has summarized the most recent research progress reported between 2011 and early 2017 regarding the biocompatibility of CB[7] and the influence of CB[7] on the stability, solubility, biouptake, and biological activities (including therapeutic efficacies and toxicities) of guest drug molecules. Through this systemic summary and analysis, we intend to stimulate further research efforts in this area and promote the use of CB[7] as an emerging pharmaceutical excipient to improve various properties of drug molecules (or active pharmaceutical ingredients).
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Affiliation(s)
- Kit Ieng Kuok
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China
| | - Shengke Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China
| | - Ian W Wyman
- Department of Chemistry, Queen's University, Kingston, Ontario, Canada
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China
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20
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Basílio N, Gago S, Parola AJ, Pina F. Contrasting p K a Shifts in Cucurbit[7]uril Host-Guest Complexes Governed by an Interplay of Hydrophobic Effects and Electrostatic Interactions. ACS OMEGA 2017; 2:70-75. [PMID: 31457209 PMCID: PMC6640924 DOI: 10.1021/acsomega.6b00427] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 12/29/2016] [Indexed: 05/22/2023]
Abstract
Cucurbit[7]uril inclusion complexes with guests bearing dimethylamino groups show the expected upward pK a shifts, whereas their diethylamino counterparts display a decrease in pK a due to the preferential stabilization of the unprotonated form. These results identify the diethylamino group as the substituent of choice to avoid receptor-assisted protonation of guest molecules and present new evidence for the role of the hydrophobic effect as a driving force in cucurbituril complexation.
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Affiliation(s)
- Nuno Basílio
- Laboratório Associado
para a Química Verde (LAQV), Rede de Química e Tecnologia
(REQUIMTE), Departmento de Química, Faculdade de Ciências
e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Sandra Gago
- Laboratório Associado
para a Química Verde (LAQV), Rede de Química e Tecnologia
(REQUIMTE), Departmento de Química, Faculdade de Ciências
e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - A. Jorge Parola
- Laboratório Associado
para a Química Verde (LAQV), Rede de Química e Tecnologia
(REQUIMTE), Departmento de Química, Faculdade de Ciências
e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Fernando Pina
- Laboratório Associado
para a Química Verde (LAQV), Rede de Química e Tecnologia
(REQUIMTE), Departmento de Química, Faculdade de Ciências
e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
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21
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Miskolczy Z, Biczók L, Jablonkai I. Kinetics of the reversible inclusion of flavopereirine in cucurbit[7]uril. Phys Chem Chem Phys 2017; 19:766-773. [DOI: 10.1039/c6cp07553c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The temperature dependence of the formation and dissociation kinetics of the flavopereirine–cucurbit[7]uril complex is revealed.
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Affiliation(s)
- Zsombor Miskolczy
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- P.O. Box 286
- 1519 Budapest
- Hungary
| | - László Biczók
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- P.O. Box 286
- 1519 Budapest
- Hungary
| | - István Jablonkai
- Institute of Organic Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- P.O. Box 286
- 1519 Budapest
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22
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Pessêgo M, Gago S, Basílio N, Laia CAT, Jorge Parola A, Lima JC, Pina F. Hiding and unveiling trans-chalcone in a constrained derivative of 4′,7-dihydroxyflavylium in water: a versatile photochromic system. Org Biomol Chem 2017; 15:338-347. [DOI: 10.1039/c6ob01607c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rigidifying 4′,7-dihydroxyflavylium prevents the formation of trans-chalcone (Ct). The addition of CTAB micelles unveils Ct enabling photochromism. Disrupting the micelles with α-cyclodextrin returns the system to its initial state.
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Affiliation(s)
- Márcia Pessêgo
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciência e Tecnologia
- Universidade NOVA de Lisboa
- 2829-516 Caparica
| | - Sandra Gago
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciência e Tecnologia
- Universidade NOVA de Lisboa
- 2829-516 Caparica
| | - Nuno Basílio
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciência e Tecnologia
- Universidade NOVA de Lisboa
- 2829-516 Caparica
| | - César A. T. Laia
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciência e Tecnologia
- Universidade NOVA de Lisboa
- 2829-516 Caparica
| | - A. Jorge Parola
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciência e Tecnologia
- Universidade NOVA de Lisboa
- 2829-516 Caparica
| | - João C. Lima
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciência e Tecnologia
- Universidade NOVA de Lisboa
- 2829-516 Caparica
| | - Fernando Pina
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciência e Tecnologia
- Universidade NOVA de Lisboa
- 2829-516 Caparica
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23
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Basílio N, Pina F. Chemistry and Photochemistry of Anthocyanins and Related Compounds: A Thermodynamic and Kinetic Approach. Molecules 2016; 21:E1502. [PMID: 27834931 PMCID: PMC6273059 DOI: 10.3390/molecules21111502] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 11/02/2016] [Accepted: 11/03/2016] [Indexed: 11/25/2022] Open
Abstract
Anthocyanins are identified by the respective flavylium cation, which is only one species of a multistate of different molecules reversibly interconverted by external inputs such as pH, light and temperature. The flavylium cation (acidic form) is involved in an apparent acid-base reaction, where the basic species is the sum of quinoidal base, hemiketal and cis- and trans-chalcones, their relative fraction depending on the substitution pattern of the flavylium cation. The full comprehension of this complex system requires a thermodynamic and kinetic approach. The first consists in drawing an energy level diagram where the relative positions of the different species are represented as a function of pH. On the other hand, the kinetic approach allows measuring the rates of the reactions that interconnect reversibly the multistate species. The kinetics is greatly dependent on the existence or not of a high cis-trans isomerization barrier. In this work, the procedure to obtain the energy level diagram and the rates of inter-conversion in the multistate in both cases (low or high isomerization barrier) are described. Practical examples of this approach are presented to illustrate the theory, and recently reported applications based on host-guest complexes are reviewed.
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Affiliation(s)
- Nuno Basílio
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Fernando Pina
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
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