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Nadal Rodríguez P, Ghashghaei O, Schoepf AM, Benson S, Vendrell M, Lavilla R. Charting the Chemical Reaction Space around a Multicomponent Combination: Controlled Access to a Diverse Set of Biologically Relevant Scaffolds. Angew Chem Int Ed Engl 2023; 62:e202303889. [PMID: 37191208 PMCID: PMC10952796 DOI: 10.1002/anie.202303889] [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: 03/17/2023] [Revised: 05/04/2023] [Accepted: 05/15/2023] [Indexed: 05/17/2023]
Abstract
Charting the chemical reaction space around the combination of carbonyls, amines, and isocyanoacetates allows the description of new multicomponent processes leading to a variety of unsaturated imidazolone scaffolds. The resulting compounds display the chromophore of the green fluorescent protein and the core of the natural product coelenterazine. Despite the competitive nature of the pathways involved, general protocols provide selective access to the desired chemotypes. Moreover, we describe unprecedented reactivity at the C-2 position of the imidazolone core to directly afford C, S, and N-derivatives featuring natural products (e.g. leucettamines), potent kinase inhibitors, and fluorescent probes with suitable optical and biological profiles.
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Affiliation(s)
- Pau Nadal Rodríguez
- Department of Medicinal ChemistryFaculty of Pharmacy and Food SciencesUniversity of Barcelona and Institute of Biomedicine UB (IBUB)Av. De Joan XXIII, 27–3108028BarcelonaSpain
| | - Ouldouz Ghashghaei
- Department of Medicinal ChemistryFaculty of Pharmacy and Food SciencesUniversity of Barcelona and Institute of Biomedicine UB (IBUB)Av. De Joan XXIII, 27–3108028BarcelonaSpain
| | - Anna M. Schoepf
- Department of Medicinal ChemistryFaculty of Pharmacy and Food SciencesUniversity of Barcelona and Institute of Biomedicine UB (IBUB)Av. De Joan XXIII, 27–3108028BarcelonaSpain
| | - Sam Benson
- Centre for Inflammation ResearchThe University of EdinburghEdinburghUK
| | - Marc Vendrell
- Centre for Inflammation ResearchThe University of EdinburghEdinburghUK
| | - Rodolfo Lavilla
- Department of Medicinal ChemistryFaculty of Pharmacy and Food SciencesUniversity of Barcelona and Institute of Biomedicine UB (IBUB)Av. De Joan XXIII, 27–3108028BarcelonaSpain
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Nadal Rodríguez P, Ghashghaei O, Schoepf AM, Benson S, Vendrell M, Lavilla R. Charting the Chemical Reaction Space around a Multicomponent Combination: Controlled Access to a Diverse Set of Biologically Relevant Scaffolds. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 135:e202303889. [PMID: 38516006 PMCID: PMC10952208 DOI: 10.1002/ange.202303889] [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: 03/17/2023] [Indexed: 03/23/2024]
Abstract
Charting the chemical reaction space around the combination of carbonyls, amines, and isocyanoacetates allows the description of new multicomponent processes leading to a variety of unsaturated imidazolone scaffolds. The resulting compounds display the chromophore of the green fluorescent protein and the core of the natural product coelenterazine. Despite the competitive nature of the pathways involved, general protocols provide selective access to the desired chemotypes. Moreover, we describe unprecedented reactivity at the C-2 position of the imidazolone core to directly afford C, S, and N-derivatives featuring natural products (e.g. leucettamines), potent kinase inhibitors, and fluorescent probes with suitable optical and biological profiles.
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Affiliation(s)
- Pau Nadal Rodríguez
- Department of Medicinal ChemistryFaculty of Pharmacy and Food SciencesUniversity of Barcelona and Institute of Biomedicine UB (IBUB)Av. De Joan XXIII, 27–3108028BarcelonaSpain
| | - Ouldouz Ghashghaei
- Department of Medicinal ChemistryFaculty of Pharmacy and Food SciencesUniversity of Barcelona and Institute of Biomedicine UB (IBUB)Av. De Joan XXIII, 27–3108028BarcelonaSpain
| | - Anna M. Schoepf
- Department of Medicinal ChemistryFaculty of Pharmacy and Food SciencesUniversity of Barcelona and Institute of Biomedicine UB (IBUB)Av. De Joan XXIII, 27–3108028BarcelonaSpain
| | - Sam Benson
- Centre for Inflammation ResearchThe University of EdinburghEdinburghUK
| | - Marc Vendrell
- Centre for Inflammation ResearchThe University of EdinburghEdinburghUK
| | - Rodolfo Lavilla
- Department of Medicinal ChemistryFaculty of Pharmacy and Food SciencesUniversity of Barcelona and Institute of Biomedicine UB (IBUB)Av. De Joan XXIII, 27–3108028BarcelonaSpain
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Baruah M, Jana A, Pareek N, Singh S, Samanta A. A Ratiometric Fluorescent Probe for Hypochlorite and Lipid Droplets to Monitor Oxidative Stress. BIOSENSORS 2023; 13:662. [PMID: 37367027 DOI: 10.3390/bios13060662] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023]
Abstract
Mitochondria are valuable subcellular organelles and play crucial roles in redox signaling in living cells. Substantial evidence proved that mitochondria are one of the critical sources of reactive oxygen species (ROS), and overproduction of ROS accompanies redox imbalance and cell immunity. Among ROS, hydrogen peroxide (H2O2) is the foremost redox regulator, which reacts with chloride ions in the presence of myeloperoxidase (MPO) to generate another biogenic redox molecule, hypochlorous acid (HOCl). These highly reactive ROS are the primary cause of damage to DNA (deoxyribonucleic acid), RNA (ribonucleic acid), and proteins, leading to various neuronal diseases and cell death. Cellular damage, related cell death, and oxidative stress are also associated with lysosomes which act as recycling units in the cytoplasm. Hence, simultaneous monitoring of multiple organelles using simple molecular probes is an exciting area of research that is yet to be explored. Significant evidence also suggests that oxidative stress induces the accumulation of lipid droplets in cells. Hence, monitoring redox biomolecules in mitochondria and lipid droplets in cells may give a new insight into cell damage, leading to cell death and related disease progressions. Herein, we developed simple hemicyanine-based small molecular probes with a boronic acid trigger. A fluorescent probe AB that could efficiently detect mitochondrial ROS, especially HOCl, and viscosity simultaneously. When the AB probe released phenylboronic acid after reacting with ROS, the product AB-OH exhibited ratiometric emissions depending on excitation. This AB-OH nicely translocates to lysosomes and efficiently monitors the lysosomal lipid droplets. Photoluminescence and confocal fluorescence imaging analysis suggest that AB and corresponding AB-OH molecules are potential chemical probes for studying oxidative stress.
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Affiliation(s)
- Mousumi Baruah
- Molecular Sensors and Therapeutics Research Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar (Institute of Eminence Deemed to be) University, Delhi 201314, NCR, India
| | - Anal Jana
- Molecular Sensors and Therapeutics Research Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar (Institute of Eminence Deemed to be) University, Delhi 201314, NCR, India
- Department of Chemistry, University of California, Riverside, CA 92521, USA
| | - Niharika Pareek
- Molecular Sensors and Therapeutics Research Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar (Institute of Eminence Deemed to be) University, Delhi 201314, NCR, India
| | - Shikha Singh
- Molecular Sensors and Therapeutics Research Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar (Institute of Eminence Deemed to be) University, Delhi 201314, NCR, India
| | - Animesh Samanta
- Molecular Sensors and Therapeutics Research Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar (Institute of Eminence Deemed to be) University, Delhi 201314, NCR, India
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Brandner L, Müller TJJ. Multicomponent synthesis of chromophores – The one-pot approach to functional π-systems. Front Chem 2023; 11:1124209. [PMID: 37007054 PMCID: PMC10065161 DOI: 10.3389/fchem.2023.1124209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/26/2023] [Indexed: 03/19/2023] Open
Abstract
Multicomponent reactions, conducted in a domino, sequential or consecutive fashion, have not only considerably enhanced synthetic efficiency as one-pot methodology, but they have also become an enabling tool for interdisciplinary research. The highly diversity-oriented nature of the synthetic concept allows accessing huge structural and functional space. Already some decades ago this has been recognized for life sciences, in particular, lead finding and exploration in pharma and agricultural chemistry. The quest for novel functional materials has also opened the field for diversity-oriented syntheses of functional π-systems, i.e. dyes for photonic and electronic applications based on their electronic properties. This review summarizes recent developments in MCR syntheses of functional chromophores highlighting syntheses following either the framework forming scaffold approach by establishing connectivity between chromophores or the chromogenic chromophore approach by de novo formation of chromophore of interest. Both approaches warrant rapid access to molecular functional π-systems, i.e. chromophores, fluorophores, and electrophores for various applications.
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Paul P, Karar M, Mondal B, Roy UK, Ghosh A, Majumdar T, Mallick A. Controlled tuning of radiative-nonradiative transition via solvent perturbation: Franck-Condon emission vs. aggregation caused quenching. Phys Chem Chem Phys 2022; 24:18245-18254. [PMID: 35876115 DOI: 10.1039/d2cp02305a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organic molecules with tunable fluorescence quantum yield are attractive for opto-electronic applications. A fluorophore with tunable fluorescence quantum yield should be a better choice for a variety of applications that demand fluorophores with different quantum yields. Here organic emitters with a continuous bell-shaped fluorescence yield profile would be promising in view of sustainability and reusability; however, fluorophores with these properties are rarely reported. A bis-indole derivative, 3,3'-bisindolyl(phenyl)methane (BIPM), was synthesised and found to undergo a unique 'rise-and-fall' profile in fluorescence yield with a compositional change of the 1,4-dioxane (DiOx)-H2O solvent system. A predominant interplay of two contrasting factors, (a) polarity and proticity induced emission enhancement and (b) aggregation caused fluorescence quenching, on either side of a crossover solvent composition (∼50% fW), resulted in a continuous bell-patterned fluorescence yield profile. Interestingly, these two factors could be observed individually or simultaneously by adjusting the H2O fraction. Detailed spectroscopic, electron microscopic and computational studies have been performed to substantiate the photophysics behind the solvent regulated modulation of fluorescence quantum yield.
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Affiliation(s)
- Provakar Paul
- Department of Chemistry, University of Kalyani, Nadia, West Bengal, 741235, India
| | - Monaj Karar
- Department of Chemistry, University of Kalyani, Nadia, West Bengal, 741235, India
| | - Bibhas Mondal
- Department of Chemistry, Kazi Nazrul University, Asansol, West Bengal, 713340, India
| | - Ujjal Kanti Roy
- Department of Chemistry, Kazi Nazrul University, Asansol, West Bengal, 713340, India
| | - Ashutosh Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Kolkata, Mohanpur, West Bengal, 741246, India
| | - Tapas Majumdar
- Department of Chemistry, University of Kalyani, Nadia, West Bengal, 741235, India
| | - Arabinda Mallick
- Department of Chemistry, Kazi Nazrul University, Asansol, West Bengal, 713340, India
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Nadal Rodríguez P, Ghashghaei O, Bagán A, Escolano C, Lavilla R. Heterocycle-Based Multicomponent Reactions in Drug Discovery: From Hit Finding to Rational Design. Biomedicines 2022; 10:biomedicines10071488. [PMID: 35884794 PMCID: PMC9313418 DOI: 10.3390/biomedicines10071488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/16/2022] [Accepted: 06/20/2022] [Indexed: 11/16/2022] Open
Abstract
In the context of the structural complexity necessary for a molecule to selectively display a therapeutical action and the requirements for suitable pharmacokinetics, a robust synthetic approach is essential. Typically, thousands of relatively similar compounds should be prepared along the drug discovery process. In this respect, heterocycle-based multicomponent reactions offer advantages over traditional stepwise sequences in terms of synthetic economy, as well as the fast access to chemsets to study the structure activity relationships, the fine tuning of properties, and the preparation of larger amounts for preclinical phases. In this account, we briefly summarize the scientific methodology backing the research line followed by the group. We comment on the main results, clustered according to the targets and, finally, in the conclusion section, we offer a general appraisal of the situation and some perspectives regarding future directions in academic and private research.
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del Corte X, López-Francés A, Villate-Beitia I, Sainz-Ramos M, Martínez de Marigorta E, Palacios F, Alonso C, de los Santos JM, Pedraz JL, Vicario J. Multicomponent Synthesis of Unsaturated γ-Lactam Derivatives. Applications as Antiproliferative Agents through the Bioisosterism Approach: Carbonyl vs. Phosphoryl Group. Pharmaceuticals (Basel) 2022; 15:ph15050511. [PMID: 35631337 PMCID: PMC9144317 DOI: 10.3390/ph15050511] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 12/16/2022] Open
Abstract
We report efficient synthetic methodologies for the preparation of 3-amino and 3-hydroxy 3-pyrrolin-2-ones (unsaturated γ-lactams) through a multicomponent reaction of amines, aldehydes and acetylene or pyruvate derivatives. The densely substituted γ-lactam substrates show in vitro cytotoxicity, inhibiting the growth of the carcinoma human tumor cell lines RKO (human colon epithelial carcinoma), SKOV3 (human ovarian carcinoma) and A549 (carcinomic human alveolar basal epithelial cell). In view of the possibilities for the diversity of the substituents that offer a multicomponent, synthetic methodology, an extensive structure–activity profile is presented. In addition, the bioisosteric replacement of the flat ester group by a tetrahedral phosphonate or phosphine oxide moiety in γ-lactam substrates leads to increased growth inhibition activity. Cell morphology analysis and flow cytometry assays indicate that the main pathway by which our compounds induce cytotoxicity is based on the activation of the intracellular apoptotic mechanism.
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Affiliation(s)
- Xabier del Corte
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (X.d.C.); (A.L.-F.); (E.M.d.M.); (F.P.); (C.A.); (J.M.d.l.S.)
| | - Adrián López-Francés
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (X.d.C.); (A.L.-F.); (E.M.d.M.); (F.P.); (C.A.); (J.M.d.l.S.)
| | - Ilia Villate-Beitia
- NanoBioCel Group, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain; (I.V.-B.); (M.S.-R.)
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Faculty of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Research Group, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
| | - Myriam Sainz-Ramos
- NanoBioCel Group, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain; (I.V.-B.); (M.S.-R.)
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Faculty of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Research Group, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
| | - Edorta Martínez de Marigorta
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (X.d.C.); (A.L.-F.); (E.M.d.M.); (F.P.); (C.A.); (J.M.d.l.S.)
| | - Francisco Palacios
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (X.d.C.); (A.L.-F.); (E.M.d.M.); (F.P.); (C.A.); (J.M.d.l.S.)
| | - Concepción Alonso
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (X.d.C.); (A.L.-F.); (E.M.d.M.); (F.P.); (C.A.); (J.M.d.l.S.)
| | - Jesús M. de los Santos
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (X.d.C.); (A.L.-F.); (E.M.d.M.); (F.P.); (C.A.); (J.M.d.l.S.)
| | - José Luis Pedraz
- NanoBioCel Group, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain; (I.V.-B.); (M.S.-R.)
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Faculty of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Research Group, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
- Correspondence: (J.L.P.); (J.V.)
| | - Javier Vicario
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (X.d.C.); (A.L.-F.); (E.M.d.M.); (F.P.); (C.A.); (J.M.d.l.S.)
- Correspondence: (J.L.P.); (J.V.)
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Stoerkler T, Pariat T, Laurent AD, Jacquemin D, Ulrich G, Massue J. Excited-State Intramolecular Proton Transfer Dyes with Dual-State Emission Properties: Concept, Examples and Applications. Molecules 2022; 27:molecules27082443. [PMID: 35458640 PMCID: PMC9024454 DOI: 10.3390/molecules27082443] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/08/2022] [Accepted: 04/08/2022] [Indexed: 11/30/2022] Open
Abstract
Dual-state emissive (DSE) fluorophores are organic dyes displaying fluorescence emission both in dilute and concentrated solution and in the solid-state, as amorphous, single crystal, polycrystalline samples or thin films. This comes in contrast to the vast majority of organic fluorescent dyes which typically show intense fluorescence in solution but are quenched in concentrated media and in the solid-state owing to π-stacking interactions; a well-known phenomenon called aggregation-caused quenching (ACQ). On the contrary, molecular rotors with a significant number of free rotations have been engineered to show quenched emission in solution but strong fluorescence in the aggregated-state thanks to restriction of the intramolecular motions. This is the concept of aggregation-induced emission (AIE). DSE fluorophores have been far less explored despite the fact that they are at the crossroad of ACQ and AIE phenomena and allow targeting applications both in solution (bio-conjugation, sensing, imaging) and solid-state (organic electronics, data encryption, lasing, luminescent displays). Excited-State Intramolecular Proton Transfer (ESIPT) fluorescence is particularly suitable to engineer DSE dyes. Indeed, ESIPT fluorescence, which relies on a phototautomerism between normal and tautomeric species, is characterized by a strong emission in the solid-state along with a large Stokes’ shift, an enhanced photostability and a strong sensitivity to the close environment, a feature prone to be used in bio-sensing. A drawback that needs to be overcome is their weak emission intensity in solution, owing to detrimental molecular motions in the excited-state. Several strategies have been proposed in that regard. In the past few years, a growing number of examples of DSE-ESIPT dyes have indeed emerged in the literature, enriching the database of such attractive dyes. This review aims at a brief but concise overview on the exploitation of ESIPT luminescence for the optimization of DSE dyes properties. In that perspective, a synergistic approach between organic synthesis, fluorescence spectroscopy and ab initio calculations has proven to be an efficient tool for the construction and optimization of DSE-ESIPT fluorophores.
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Affiliation(s)
- Timothée Stoerkler
- Institut de Chimie et Procédés pour l’Energie, l’Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l’Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), Université de Strasbourg, 25 Rue Becquerel, CEDEX 02, 67087 Strasbourg, France; (T.S.); (T.P.); (G.U.)
| | - Thibault Pariat
- Institut de Chimie et Procédés pour l’Energie, l’Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l’Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), Université de Strasbourg, 25 Rue Becquerel, CEDEX 02, 67087 Strasbourg, France; (T.S.); (T.P.); (G.U.)
| | - Adèle D. Laurent
- Chimie et Interdisciplinarités: Synthèse, Analyse et Modélisation (CEISAM), UMR CNRS 6230, Nantes University, 44322 Nantes, France;
| | - Denis Jacquemin
- Chimie et Interdisciplinarités: Synthèse, Analyse et Modélisation (CEISAM), UMR CNRS 6230, Nantes University, 44322 Nantes, France;
- Correspondence: (D.J.); (J.M.)
| | - Gilles Ulrich
- Institut de Chimie et Procédés pour l’Energie, l’Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l’Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), Université de Strasbourg, 25 Rue Becquerel, CEDEX 02, 67087 Strasbourg, France; (T.S.); (T.P.); (G.U.)
| | - Julien Massue
- Institut de Chimie et Procédés pour l’Energie, l’Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l’Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), Université de Strasbourg, 25 Rue Becquerel, CEDEX 02, 67087 Strasbourg, France; (T.S.); (T.P.); (G.U.)
- Correspondence: (D.J.); (J.M.)
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Avellanal-Zaballa E, Gartzia-Rivero L, Arbeloa T, Bañuelos J. Fundamental photophysical concepts and key structural factors for the design of BODIPY-based tunable lasers. INT REV PHYS CHEM 2022. [DOI: 10.1080/0144235x.2022.2096772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
| | | | - Teresa Arbeloa
- Dpto. Química Física, Universidad del País Vasco (UPV-EHU), Bilbao, Spain
| | - Jorge Bañuelos
- Dpto. Química Física, Universidad del País Vasco (UPV-EHU), Bilbao, Spain
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Munch M, Colombain E, Stoerkler T, Vérité PM, Jacquemin D, Ulrich G, Massue J. Blue-Emitting 2-(2'-Hydroxyphenyl)benzazole Fluorophores by Modulation of Excited-State Intramolecular Proton Transfer: Spectroscopic Studies and Theoretical Calculations. J Phys Chem B 2022; 126:2108-2118. [PMID: 35238563 DOI: 10.1021/acs.jpcb.2c00383] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This article describes the synthesis, spectroscopic studies, and theoretical calculations of nine original fluorophores based on the 2-(2'-hydroxyphenyl)benzazole (HBX) scaffold, functionalized at the 4-position of the phenol ring by ethynyl-extended aniline moieties. HBX dyes are well-known to display an excited-state intramolecular proton transfer (ESIPT) process, owing to a strong six-membered hydrogen bond in their structure that allows for an enol/keto tautomerism after photoexcitation. Appropriate electronic substitution can perturb the ESIPT process, leading to dual fluorescence, both excited tautomers emitting at specific wavelengths. In the examples described herein, it is demonstrated that the proton transfer can be finely frustrated by a modification of the constitutive heteroring, leading to a single emission band from the excited enol or keto tautomer or a dual emission with relative intensities highly dependent on the environment. Moreover, the nature of the functionalization of the N-alkylated aniline moiety also has a significant importance on the relative excited-state stabilities of the two tautomers in solution. To shed more light on these features, quantum chemical calculations by the density functional theory are used to determine the excited-state energies and rationalize the experimental spectroscopic data.
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Affiliation(s)
- Maxime Munch
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Erika Colombain
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Timothée Stoerkler
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Pauline M Vérité
- CEISAM, UMR CNRS 6230, University of Nantes, 44322 Nantes, France
| | - Denis Jacquemin
- CEISAM, UMR CNRS 6230, University of Nantes, 44322 Nantes, France
| | - Gilles Ulrich
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Julien Massue
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
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11
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Sung DB, Han JH, Kim YK, Mun BH, Park S, Kim HS, Lee JS. Gold(I)-Catalyzed Intramolecular Hydrothiophenylation of N-Thiophen-3-yl Alkynylamides for Accessing Thieno[3,2- b]pyridine-5(4 H)-ones: Development of F-Actin Specific Fluorescent Probes. J Org Chem 2022; 87:4936-4950. [PMID: 35148090 DOI: 10.1021/acs.joc.1c02923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we describe an original synthetic method for a series of fluorescent thieno[3,2-b]pyridine-5(4H)-one derivatives prepared via the gold(I)-catalyzed 6-endo-dig intramolecular hydrothiophenylation process involving N-thiophen-3-yl alkynylamides. The brightness was improved; emission could be tuned, and larger Stokes shifts were recorded. We also designed and synthesized the phalloidin-based fluorescent chemical probes KF-P1 and KF-P2 to realize fluorescent F-actin imaging.
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Affiliation(s)
- Dan-Bi Sung
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea
| | - Jang Hee Han
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.,Graduate School of Medical Science, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Yong-Keon Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.,Graduate School of Medical Science, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Bo Hyun Mun
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea
| | - Sol Park
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea.,Department of Marine Biotechnology, Korea University of Science and Technology, Deajeon 34113, Republic of Korea
| | - Hyun Seok Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.,Graduate School of Medical Science, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jong Seok Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea.,Department of Marine Biotechnology, Korea University of Science and Technology, Deajeon 34113, Republic of Korea
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12
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Development of Heterocyclic Multicomponent Reactions through Guided Exploration: Direct, Reasonable and Unpredictable Processes. Synlett 2022. [DOI: 10.1055/a-1750-3185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
This account summarizes the research of the group on the Multicomponent Reactions arena with fundamental heterocycles as substrates, using mechanistic considerations to hypothesize new processes and to rationalize results. Biomedical applications of the ensuing adducts were also envisaged, which brought about interesting discoveries.
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13
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Pariat T, Stoerkler T, Diguet C, Laurent AD, Jacquemin D, Ulrich G, Massue J. Dual Solution-/Solid-State Emissive Excited-State Intramolecular Proton Transfer (ESIPT) Dyes: A Combined Experimental and Theoretical Approach. J Org Chem 2021; 86:17606-17619. [PMID: 34846147 DOI: 10.1021/acs.joc.1c01698] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Excited-state intramolecular proton transfer (ESIPT) dyes typically show strong solid-state emission, but faint fluorescence intensity is observed in the solution state owing to detrimental molecular motions. This article investigates the influence of direct (hetero)arylation on the optical properties of 2-(2'-hydroxyphenyl)benzoxazole ESIPT emitters. The synthesis of two series of ESIPT emitters bearing substituted neutral or charged aryl, thiophene, or pyridine rings is reported herein along with full photophysical studies in solution and solid states, demonstrating the dual solution-/solid-state emission behavior. Depending on the nature of substitution, several excited-state dynamics are observed: quantitative or partially frustrated ESIPT process or deprotonation of the excited species. Protonation studies revealed that pyridine substitution triggered a strong increase of quantum yield in the solution state for the protonated species owing to favorable quinoidal stabilization. These attractive features led to the development of a second series of dyes with alkyl or aryl pyridinium moieties showing strong tunable solution/solid fluorescence intensity. For each series, ab initio calculations helped rationalize and ascertain their behavior in the excited state and the nature of the emission observed by the experimental results.
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Affiliation(s)
- Thibault Pariat
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), Université de Strasbourg, 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Timothée Stoerkler
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), Université de Strasbourg, 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Clément Diguet
- Laboratoire CEISAM UMR UN-CNRS 6230, Université de Nantes, Nantes F-44000, France
| | - Adèle D Laurent
- Laboratoire CEISAM UMR UN-CNRS 6230, Université de Nantes, Nantes F-44000, France
| | - Denis Jacquemin
- Laboratoire CEISAM UMR UN-CNRS 6230, Université de Nantes, Nantes F-44000, France
| | - Gilles Ulrich
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), Université de Strasbourg, 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Julien Massue
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), Université de Strasbourg, 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
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14
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Fadeev AA, Makarov AS, Uchuskin MG. Acid-Catalyzed Cascade Reaction of 2-Alkylfurans with α,β-Unsaturated Ketones: A Shortcut to 2,3,5-Trisubstituted Furans. J Org Chem 2021; 86:17362-17370. [PMID: 34784209 DOI: 10.1021/acs.joc.1c01692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The convergent one-pot method toward trisubstituted furans has been developed. The key transformation behind the synthetic protocol comprises the cascade acid-catalyzed conjugated addition of furans to commercially available or easily accessible α,β-unsaturated ketones followed by the rearrangement of the intermediate Michael adducts into isomeric furans. The prospect of utilizing the target products as building blocks for the preparation of potential functional molecules for organic electronics has been demonstrated.
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Affiliation(s)
- Alexander A Fadeev
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2, 12800, Czech Republic
| | - Anton S Makarov
- Department of Chemistry, Perm State University, Bukireva 15, Perm, 614990, Russia
| | - Maxim G Uchuskin
- Department of Chemistry, Perm State University, Bukireva 15, Perm, 614990, Russia
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15
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Storm AT, Gjikaj M, Namyslo JC, Adams J, Schmidt A. 1,3‐Thiazolium‐4‐aminides: Syntheses and Characterization of Fluorescent Mesoionic Compounds. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alena Therese Storm
- Clausthal University of Technology Institute of Organic Chemistry Leibnizstraße 6 38678 Clausthal-Zellerfeld Germany
| | - Mimoza Gjikaj
- Clausthal University of Technology Institute of Institute of Inorganic and Analytical Chemistry Paul-Ernst-Straße 4 38678 Clausthal-Zellerfeld Germany
| | - Jan C. Namyslo
- Clausthal University of Technology Institute of Organic Chemistry Leibnizstraße 6 38678 Clausthal-Zellerfeld Germany
| | - Jörg Adams
- Clausthal University of Technology Institute of Physical Chemistry Arnold-Sommerfeld-Straße 4 D-38678 Clausthal-Zellerfeld Germany
| | - Andreas Schmidt
- Clausthal University of Technology Institute of Organic Chemistry Leibnizstraße 6 38678 Clausthal-Zellerfeld Germany
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16
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Xiong Z, Zhang X, Liu L, Zhu Q, Wang Z, Feng H, Qian Z. Achieving highly efficient aggregation-induced emission, reversible and irreversible photochromism by heavy halogen-regulated photophysics and D-A molecular pattern-controlled photochemistry of through-space conjugated luminogens. Chem Sci 2021; 12:10710-10723. [PMID: 34476056 PMCID: PMC8372539 DOI: 10.1039/d1sc02168k] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 07/03/2021] [Indexed: 12/15/2022] Open
Abstract
It is extremely challenging but desirable to regulate the photophysical and photochemical processes of aggregation-induced emission luminogens (AIEgens) in distinct states in a controllable manner. Herein, we design two groups of AIEgens based on a triphenylacrylonitrile (TPAN) skeleton with through-space conjugation (TSC) property, demonstrate controlled regulation of photophysical emission efficiency/color and photochemical photochromic and photoactivatable fluorescence behaviours of these compounds, and further validate design principles to achieve highly efficient and emission-tuning AIEgens and to accomplish photo-dependent color switches and fluorescence changes. It is surprisingly found that the introduction of heavy halogens like bromine into a TPAN skeleton dramatically enhances the emission efficiency, and such an abnormal phenomenon against the heavy-atom effect is attributed to the specific through-space conjugation nature of the AIE-active skeleton, effective intermolecular halogen-bond-induced restriction of intramolecular motions, and heavy atom-induced vibration reduction. The incorporation of two electron-donating amino groups into the TPAN skeleton cause the luminogens to undergo a bathochromic shifted emission due to the formation of a D-A pattern. Apart from the regulation of photophysical processes in the solid state, the construction of the D-A pattern in luminogens also results in extremely different photochemical reactions accompanying reversible/irreversible photochromism and photoactivatable fluorescence phenomena in a dispersed state. It is revealed that photo-triggered cyclization and decyclization reactions dominantly contribute to reversible photochromism of the TPAN family, and the photo-induced cyclization-dehydrogenation reaction is responsible for the irreversible color changes and photoactivatable fluorescence behaviours of the NTPAN family. The demonstrations of multiple-mode signaling in photoswitchable patterning and information encryption highlight the importance of controlled regulation of photophysics and photochemistry of fused chromic and AIE-active luminogens in distinct states.
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Affiliation(s)
- Zuping Xiong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University Yingbin Road 688 Jinhua 321004 People's Republic of China
| | - Xiaoxiao Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University Yingbin Road 688 Jinhua 321004 People's Republic of China
| | - Longxiang Liu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University Yingbin Road 688 Jinhua 321004 People's Republic of China
| | - Qiaozhi Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University Yingbin Road 688 Jinhua 321004 People's Republic of China
| | - Zhenni Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University Yingbin Road 688 Jinhua 321004 People's Republic of China
| | - Hui Feng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University Yingbin Road 688 Jinhua 321004 People's Republic of China
| | - Zhaosheng Qian
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University Yingbin Road 688 Jinhua 321004 People's Republic of China
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17
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Mummel S, Lederle F, Hübner EG, Namyslo JC, Nieger M, Schmidt A. Sydnone Methides-A Forgotten Class of Mesoionic Compounds for the Generation of Anionic N-Heterocyclic Carbenes. Angew Chem Int Ed Engl 2021; 60:18882-18887. [PMID: 34153173 PMCID: PMC8456854 DOI: 10.1002/anie.202107495] [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: 06/05/2021] [Indexed: 12/25/2022]
Abstract
Sydnone methides are described from which only one single example has been mentioned in the literature so far. Their deprotonation gave anions which can be formulated as π-electron rich anionic N-heterocyclic carbenes. Sulfur and selenium adducts were stabilized as their methyl ethers, and mercury, gold as well as rhodium complexes of the sydnone methide carbenes were prepared. Sydnone methide anions also undergo C-C coupling reactions with 1-fluoro-4-iodobenzene under Pd(PPh3 )4 and CuBr catalysis. 77 Se NMR resonance frequencies and 1 JC4-Se as well as 1 JC4-H coupling constants have been determined to gain knowledge about the electronic properties of the anionic N-heterocyclic carbenes. The carbene carbon atom of the sydnone methide anion 3 j resonates at δ=155.2 ppm in 13 C NMR spectroscopy at -40 °C which is extremely shifted upfield in comparison to classical N-heterocyclic carbenes.
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Affiliation(s)
- Sebastian Mummel
- Clausthal University of TechnologyInstitute of Organic ChemistryLeibnizstrasse 6D-38678Clausthal-ZellerfeldGermany
| | - Felix Lederle
- Clausthal University of TechnologyInstitute of Organic ChemistryLeibnizstrasse 6D-38678Clausthal-ZellerfeldGermany
- Fraunhofer Heinrich Hertz Institute HHIFiber Optical Sensor SystemsAm Stollen 19HD-38640GoslarGermany
| | - Eike G. Hübner
- Clausthal University of TechnologyInstitute of Organic ChemistryLeibnizstrasse 6D-38678Clausthal-ZellerfeldGermany
- Fraunhofer Heinrich Hertz Institute HHIFiber Optical Sensor SystemsAm Stollen 19HD-38640GoslarGermany
| | - Jan C. Namyslo
- Clausthal University of TechnologyInstitute of Organic ChemistryLeibnizstrasse 6D-38678Clausthal-ZellerfeldGermany
| | - Martin Nieger
- University of HelsinkiDepartment of ChemistryP.O. Box 55FIN-00014HelsinkiFinland
| | - Andreas Schmidt
- Clausthal University of TechnologyInstitute of Organic ChemistryLeibnizstrasse 6D-38678Clausthal-ZellerfeldGermany
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18
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Mummel S, Lederle F, Hübner EG, Namyslo JC, Nieger M, Schmidt A. Sydnonmethide – fast vergessene Mesoionen als Vorläufermoleküle von anionischen N‐heterocyclischen Carbenen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Sebastian Mummel
- Technische Universität Clausthal Institut für Organische Chemie Leibnizstrasse 6 38678 Clausthal-Zellerfeld Deutschland
| | - Felix Lederle
- Technische Universität Clausthal Institut für Organische Chemie Leibnizstrasse 6 38678 Clausthal-Zellerfeld Deutschland
- Fraunhofer Heinrich-Hertz-Institut HHI Faseroptische Sensorsysteme Am Stollen 19H 38640 Goslar Deutschland
| | - Eike G. Hübner
- Technische Universität Clausthal Institut für Organische Chemie Leibnizstrasse 6 38678 Clausthal-Zellerfeld Deutschland
- Fraunhofer Heinrich-Hertz-Institut HHI Faseroptische Sensorsysteme Am Stollen 19H 38640 Goslar Deutschland
| | - Jan C. Namyslo
- Technische Universität Clausthal Institut für Organische Chemie Leibnizstrasse 6 38678 Clausthal-Zellerfeld Deutschland
| | - Martin Nieger
- Universität Helsinki Department für Chemie P.O. Box 55 00014 Helsinki Finnland
| | - Andreas Schmidt
- Technische Universität Clausthal Institut für Organische Chemie Leibnizstrasse 6 38678 Clausthal-Zellerfeld Deutschland
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19
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A Multicomponent Protocol for the Synthesis of Highly Functionalized γ-Lactam Derivatives and Their Applications as Antiproliferative Agents. Pharmaceuticals (Basel) 2021; 14:ph14080782. [PMID: 34451879 PMCID: PMC8400033 DOI: 10.3390/ph14080782] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/30/2021] [Accepted: 08/05/2021] [Indexed: 01/13/2023] Open
Abstract
An efficient synthetic methodology for the preparation of 3-amino 1,5-dihydro-2H-pyrrol-2-ones through a multicomponent reaction of amines, aldehydes, and pyruvate derivatives is reported. In addition, the densely substituted lactam substrates show in vitro cytotoxicity, inhibiting the growth of carcinoma human tumor cell lines HEK293 (human embryonic kidney), MCF7 (human breast adenocarcinoma), HTB81 (human prostate carcinoma), HeLa (human epithelioid cervix carcinoma), RKO (human colon epithelial carcinoma), SKOV3 (human ovarian carcinoma), and A549 (carcinomic human alveolar basal epithelial cell). Given the possibilities in the diversity of the substituents that offer the multicomponent synthetic methodology, an extensive structure-activity profile is presented. In addition, both enantiomers of phosphonate-derived γ-lactam have been synthesized and isolated and a study of the cytotoxic activity of the racemic substrate vs. its two enantiomers is also presented. Cell morphology analysis and flow cytometry assays indicate that the main pathway by which our compounds induce cytotoxicity is based on the activation of the intracellular apoptotic mechanism.
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20
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Avellanal-Zaballa E, Prieto-Castañeda A, Díaz-Norambuena C, Bañuelos J, Agarrabeitia AR, García-Moreno I, de la Moya S, Ortiz MJ. From photosensitizers to light harvesters adapting the molecular structure in all-BODIPY assemblies. Phys Chem Chem Phys 2021; 23:11191-11195. [PMID: 33954326 DOI: 10.1039/d1cp00991e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we detail a protocol to design dyads and triads based solely on BODIPY dyes as halogen-free singlet oxygen photosensitizers or energy transfer molecular cassettes. The conducted photonic characterization reveals the key role of the BODIPY-BODIPY linkage to finely modulate the balance between the triplet state population and fluorescence decay.
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Affiliation(s)
| | - Alejandro Prieto-Castañeda
- Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid, 28040, Spain.
| | | | - Jorge Bañuelos
- Dpto. de Química Física, Universidad del País Vasco-EHU, Apartado 644, Bilbao 48080, Spain.
| | - Antonia R Agarrabeitia
- Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid, 28040, Spain.
| | - Inmaculada García-Moreno
- Dpto. de Sistemas de Baja Dimensionalidad, Superficies y Materia Condensada, Instituto de Química-Física "Rocasolano", C.S.I.C., Serrano 119, Madrid, 28006, Spain
| | - Santiago de la Moya
- Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid, 28040, Spain.
| | - María J Ortiz
- Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid, 28040, Spain.
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21
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de Moliner F, Knox K, Gordon D, Lee M, Tipping WJ, Geddis A, Reinders A, Ward JM, Oparka K, Vendrell M. A Palette of Minimally Tagged Sucrose Analogues for Real-Time Raman Imaging of Intracellular Plant Metabolism. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 133:7715-7720. [PMID: 38505234 PMCID: PMC10946860 DOI: 10.1002/ange.202016802] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Indexed: 12/19/2022]
Abstract
Sucrose is the main saccharide used for long-distance transport in plants and plays an essential role in energy metabolism; however, there are no analogues for real-time imaging in live cells. We have optimised a synthetic approach to prepare sucrose analogues including very small (≈50 Da or less) Raman tags in the fructose moiety. Spectroscopic analysis identified the alkyne-tagged compound 6 as a sucrose analogue recognised by endogenous transporters in live cells and with higher Raman intensity than other sucrose derivatives. Herein, we demonstrate the application of compound 6 as the first optical probe to visualise real-time uptake and intracellular localisation of sucrose in live plant cells using Raman microscopy.
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Affiliation(s)
| | - Kirsten Knox
- Institute of Molecular Plant SciencesThe University of EdinburghUK
| | - Doireann Gordon
- Centre for Inflammation ResearchThe University ofEdinburghUK
| | - Martin Lee
- Cancer Research (UK) Edinburgh CentreThe University of EdinburghUK
| | - William J. Tipping
- EaStCHEM School of ChemistryThe University of EdinburghUK
- Centre for Molecular NanometrologyUniversity of StrathclydeUK
| | - Ailsa Geddis
- Centre for Inflammation ResearchThe University ofEdinburghUK
- EaStCHEM School of ChemistryThe University of EdinburghUK
| | - Anke Reinders
- Department of Plant and Microbial BiologyUniversity of MinnesotaUSA
| | - John M. Ward
- Department of Plant and Microbial BiologyUniversity of MinnesotaUSA
| | - Karl Oparka
- Institute of Molecular Plant SciencesThe University of EdinburghUK
| | - Marc Vendrell
- Centre for Inflammation ResearchThe University ofEdinburghUK
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22
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de Moliner F, Knox K, Gordon D, Lee M, Tipping WJ, Geddis A, Reinders A, Ward JM, Oparka K, Vendrell M. A Palette of Minimally Tagged Sucrose Analogues for Real-Time Raman Imaging of Intracellular Plant Metabolism. Angew Chem Int Ed Engl 2021; 60:7637-7642. [PMID: 33491852 PMCID: PMC8048481 DOI: 10.1002/anie.202016802] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Indexed: 12/20/2022]
Abstract
Sucrose is the main saccharide used for long-distance transport in plants and plays an essential role in energy metabolism; however, there are no analogues for real-time imaging in live cells. We have optimised a synthetic approach to prepare sucrose analogues including very small (≈50 Da or less) Raman tags in the fructose moiety. Spectroscopic analysis identified the alkyne-tagged compound 6 as a sucrose analogue recognised by endogenous transporters in live cells and with higher Raman intensity than other sucrose derivatives. Herein, we demonstrate the application of compound 6 as the first optical probe to visualise real-time uptake and intracellular localisation of sucrose in live plant cells using Raman microscopy.
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Affiliation(s)
| | - Kirsten Knox
- Institute of Molecular Plant SciencesThe University of EdinburghUK
| | - Doireann Gordon
- Centre for Inflammation ResearchThe University ofEdinburghUK
| | - Martin Lee
- Cancer Research (UK) Edinburgh CentreThe University of EdinburghUK
| | - William J. Tipping
- EaStCHEM School of ChemistryThe University of EdinburghUK
- Centre for Molecular NanometrologyUniversity of StrathclydeUK
| | - Ailsa Geddis
- Centre for Inflammation ResearchThe University ofEdinburghUK
- EaStCHEM School of ChemistryThe University of EdinburghUK
| | - Anke Reinders
- Department of Plant and Microbial BiologyUniversity of MinnesotaUSA
| | - John M. Ward
- Department of Plant and Microbial BiologyUniversity of MinnesotaUSA
| | - Karl Oparka
- Institute of Molecular Plant SciencesThe University of EdinburghUK
| | - Marc Vendrell
- Centre for Inflammation ResearchThe University ofEdinburghUK
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23
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López-Francés A, del Corte X, Martínez de Marigorta E, Palacios F, Vicario J. Ugi Reaction on α-Phosphorated Ketimines for the Synthesis of Tetrasubstituted α-Aminophosphonates and Their Applications as Antiproliferative Agents. Molecules 2021; 26:1654. [PMID: 33809715 PMCID: PMC8002371 DOI: 10.3390/molecules26061654] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/12/2021] [Accepted: 03/14/2021] [Indexed: 01/12/2023] Open
Abstract
An Ugi three-component reaction using preformed α-phosphorated N-tosyl ketimines with different isocyanides in the presence of a carboxylic acid affords tetrasubstituted α-aminophosphonates. Due to the high steric hindrance, the expected acylated amines undergo a spontaneous elimination of the acyl group. The reaction is applicable to α-aryl ketimines bearing a number of substituents and several isocyanides. In addition, the densely substituted α-aminophosphonate substrates showed in vitro cytotoxicity, inhibiting the growth of carcinoma human tumor cell line A549 (carcinomic human alveolar basal epithelial cell).
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Affiliation(s)
| | | | | | - Francisco Palacios
- Departamento de Química Orgánica I, Centro de Investigación y Estudios Avanzados “Lucio Lascaray”, Facultad de Farmacia, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (A.L.-F.); (X.d.C.); (E.M.d.M.)
| | - Javier Vicario
- Departamento de Química Orgánica I, Centro de Investigación y Estudios Avanzados “Lucio Lascaray”, Facultad de Farmacia, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (A.L.-F.); (X.d.C.); (E.M.d.M.)
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24
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Kumar GD, Banasiewicz M, Jacquemin D, Gryko DT. Switch-On Diketopyrrolopyrrole-Based Chemosensors for Cations Possessing Lewis Acid Character. Chem Asian J 2021; 16:355-362. [PMID: 33434391 DOI: 10.1002/asia.202001376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/09/2021] [Indexed: 12/17/2022]
Abstract
For the first time diketopyrrolopyrroles (DPPs) have been synthesized directly from nitriles possessing (aza)crown ethers leading to macrocycle-dye hybrids. Depending on the nature of the linkage between DPP and macrocyclic ring, various coordination effects are found. The strong interaction of the cations possessing Lewis acid character such as Li+ , Mg2+ and Zn2+ with 2-aminopyridin-4-yl-DPPs, leading to a bathochromic shift of both emission and absorption, as well as to strong enhancement of fluorescence was rationalized in terms of strong binding of these cations to the N=C-NR2 functionality. The same effect has been observed for protonation. Depending on the size and the structure of the macrocyclic ring the complexation of cations by aza-crown ethers plays an important but secondary role. The interaction of Na+ and K+ with 2-aminopyridin-4-yl-DPPs leads to moderate enhancement of fluorescence due to the aza-crown ethers binding. The very weak fluorescence of DPP bearing 2-dialkylamino-pyridine-4-yl substituents is due to the closely lying T2 state and the resulting intersystem crossing.
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Affiliation(s)
- G Dinesh Kumar
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Marzena Banasiewicz
- Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668, Warsaw, Poland
| | - Denis Jacquemin
- CEISAM UMR 6230, CNRS, Université de Nantes, 44000, Nantes, France
| | - Daniel T Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
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25
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Bakare OO, Keyster M, Pretorius A. Identification of biomarkers for the accurate and sensitive diagnosis of three bacterial pneumonia pathogens using in silico approaches. BMC Mol Cell Biol 2020; 21:82. [PMID: 33218302 PMCID: PMC7678116 DOI: 10.1186/s12860-020-00328-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/09/2020] [Indexed: 11/10/2022] Open
Abstract
Background Pneumonia ranks as one of the main infectious sources of mortality among kids under 5 years of age, killing 2500 a day; late research has additionally demonstrated that mortality is higher in the elderly. A few biomarkers, which up to this point have been distinguished for its determination lack specificity, as these biomarkers fail to build up a differentiation between pneumonia and other related diseases, for example, pulmonary tuberculosis and Human Immunodeficiency Infection (HIV). There is an inclusive global consensus of an improved comprehension of the utilization of new biomarkers, which are delivered in light of pneumonia infection for precision identification to defeat these previously mentioned constraints. Antimicrobial peptides (AMPs) have been demonstrated to be promising remedial specialists against numerous illnesses. This research work sought to identify AMPs as biomarkers for three bacterial pneumonia pathogens such as Streptococcus pneumoniae, Klebsiella pneumoniae, Acinetobacter baumannii using in silico technology. Hidden Markov Models (HMMER) was used to identify putative anti-bacterial pneumonia AMPs against the identified receptor proteins of Streptococcus pneumoniae, Klebsiella pneumoniae, and Acinetobacter baumannii. The physicochemical parameters of these putative AMPs were computed and their 3-D structures were predicted using I-TASSER. These AMPs were subsequently subjected to docking interaction analysis against the identified bacterial pneumonia pathogen proteins using PATCHDOCK. Results The in silico results showed 18 antibacterial AMPs which were ranked based on their E values with significant physicochemical parameters in conformity with known experimentally validated AMPs. The AMPs also bound the pneumonia receptors of their respective pathogens sensitively at the extracellular regions. Conclusions The propensity of these AMPs to bind pneumonia pathogens proteins justifies that they would be potential applicant biomarkers for the recognizable detection of these bacterial pathogens in a point-of-care POC pneumonia diagnostics. The high sensitivity, accuracy, and specificity of the AMPs likewise justify the utilization of HMMER in the design and discovery of AMPs for disease diagnostics and therapeutics.
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Affiliation(s)
- Olalekan Olanrewaju Bakare
- Bioinformatics Research Group, Biotechnology Department, University of the Western Cape, Cape Town, 7535, South Africa. .,Environmental Biotechnology Laboratory, Biotechnology Department, University of the Western Cape, Cape Town, 7535, South Africa.
| | - Marshall Keyster
- Environmental Biotechnology Laboratory, Biotechnology Department, University of the Western Cape, Cape Town, 7535, South Africa
| | - Ashley Pretorius
- Bioinformatics Research Group, Biotechnology Department, University of the Western Cape, Cape Town, 7535, South Africa
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26
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Hira J, Uddin MJ, Haugland MM, Lentz CS. From Differential Stains to Next Generation Physiology: Chemical Probes to Visualize Bacterial Cell Structure and Physiology. Molecules 2020; 25:E4949. [PMID: 33114655 PMCID: PMC7663024 DOI: 10.3390/molecules25214949] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/21/2020] [Accepted: 10/23/2020] [Indexed: 12/16/2022] Open
Abstract
Chemical probes have been instrumental in microbiology since its birth as a discipline in the 19th century when chemical dyes were used to visualize structural features of bacterial cells for the first time. In this review article we will illustrate the evolving design of chemical probes in modern chemical biology and their diverse applications in bacterial imaging and phenotypic analysis. We will introduce and discuss a variety of different probe types including fluorogenic substrates and activity-based probes that visualize metabolic and specific enzyme activities, metabolic labeling strategies to visualize structural features of bacterial cells, antibiotic-based probes as well as fluorescent conjugates to probe biomolecular uptake pathways.
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Affiliation(s)
- Jonathan Hira
- Research Group for Host-Microbe Interactions, Department of Medical Biology and Centre for New Antibacterial Strategies (CANS), UiT—The Arctic University of Norway, 9019 Tromsø, Norway; (J.H.); (M.J.U.)
| | - Md. Jalal Uddin
- Research Group for Host-Microbe Interactions, Department of Medical Biology and Centre for New Antibacterial Strategies (CANS), UiT—The Arctic University of Norway, 9019 Tromsø, Norway; (J.H.); (M.J.U.)
| | - Marius M. Haugland
- Department of Chemistry and Centre for New Antibacterial Strategies (CANS), UiT—The Arctic University of Norway, 9019 Tromsø, Norway;
| | - Christian S. Lentz
- Research Group for Host-Microbe Interactions, Department of Medical Biology and Centre for New Antibacterial Strategies (CANS), UiT—The Arctic University of Norway, 9019 Tromsø, Norway; (J.H.); (M.J.U.)
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27
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Santos FMF, Domínguez Z, Fernandes JPL, Parente Carvalho C, Collado D, Pérez-Inestrosa E, Pinto MV, Fernandes A, Arteaga JF, Pischel U, Gois PMP. Cyanine-Like Boronic Acid-Derived Salicylidenehydrazone Complexes (Cy-BASHY) for Bioimaging Applications. Chemistry 2020; 26:14064-14069. [PMID: 32449571 DOI: 10.1002/chem.202001623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Indexed: 12/14/2022]
Abstract
Boronic acid-derived salicylidenehydrazone complex (BASHY) dyes with a polymethine backbone were designed to yield efficient red-emitting and two-photon absorbing fluorophores that can be used as markers for astrocytes. The dyes are chemically stable in aqueous solution and do not undergo photodecomposition. Their photophysical properties can be electronically fine-tuned and thereby adapted to potentially different imaging situations and requirements.
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Affiliation(s)
- Fábio M F Santos
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Zoe Domínguez
- CIQSO-Centre for Research in Sustainable Chemistry and Department of, Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
| | - João P L Fernandes
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Cátia Parente Carvalho
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Daniel Collado
- Department of Organic Chemistry, University of Málaga IBIMA, Campus Teatinos s/n, 29071, Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND Parque Tecnológico de Andalucía, 29590, Málaga, Spain
| | - Ezequiel Pérez-Inestrosa
- Department of Organic Chemistry, University of Málaga IBIMA, Campus Teatinos s/n, 29071, Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND Parque Tecnológico de Andalucía, 29590, Málaga, Spain
| | - Maria V Pinto
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Adelaide Fernandes
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Jesús F Arteaga
- CIQSO-Centre for Research in Sustainable Chemistry and Department of, Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
| | - Uwe Pischel
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal.,CIQSO-Centre for Research in Sustainable Chemistry and Department of, Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
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28
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Galeta J, Dzijak R, Obořil J, Dračínský M, Vrabel M. A Systematic Study of Coumarin-Tetrazine Light-Up Probes for Bioorthogonal Fluorescence Imaging. Chemistry 2020; 26:9945-9953. [PMID: 32339341 PMCID: PMC7497033 DOI: 10.1002/chem.202001290] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Indexed: 12/20/2022]
Abstract
Fluorescent probes that light-up upon reaction with complementary bioorthogonal reagents are superior tools for no-wash fluorogenic bioimaging applications. In this work, a thorough study is presented on a set of seventeen structurally diverse coumarin-tetrazine probes that produce fluorescent dyes with exceptional turn-on ratios when reacted with trans-cyclooctene (TCO) and bicyclononyne (BCN) dienophiles. In general, formation of the fully aromatic pyridazine-containing dyes resulting from the reaction with BCN was found superior in terms of fluorogenicity. However, evaluation of the probes in cellular imaging experiments revealed that other factors, such as reaction kinetics and good cell permeability, prevail over the fluorescence turn-on properties. The best compound identified in this study showed excellent performance in live cell-labeling experiments and enabled no-wash fluorogenic imaging on a timescale of seconds.
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Affiliation(s)
- Juraj Galeta
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesFlemingovo nám. 2166 10PragueCzech Republic
| | - Rastislav Dzijak
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesFlemingovo nám. 2166 10PragueCzech Republic
| | - Jan Obořil
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesFlemingovo nám. 2166 10PragueCzech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesFlemingovo nám. 2166 10PragueCzech Republic
| | - Milan Vrabel
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesFlemingovo nám. 2166 10PragueCzech Republic
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29
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Mendive‐Tapia L, Wang J, Vendrell M. Fluorescent cyclic peptides for cell imaging. Pept Sci (Hoboken) 2020. [DOI: 10.1002/pep2.24181] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Jinling Wang
- Centre for Inflammation Research The University of Edinburgh Edinburgh UK
| | - Marc Vendrell
- Centre for Inflammation Research The University of Edinburgh Edinburgh UK
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30
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Fluorescent amino acids as versatile building blocks for chemical biology. Nat Rev Chem 2020; 4:275-290. [PMID: 37127957 DOI: 10.1038/s41570-020-0186-z] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
Abstract
Fluorophores have transformed the way we study biological systems, enabling non-invasive studies in cells and intact organisms, which increase our understanding of complex processes at the molecular level. Fluorescent amino acids have become an essential chemical tool because they can be used to construct fluorescent macromolecules, such as peptides and proteins, without disrupting their native biomolecular properties. Fluorescent and fluorogenic amino acids with unique photophysical properties have been designed for tracking protein-protein interactions in situ or imaging nanoscopic events in real time with high spatial resolution. In this Review, we discuss advances in the design and synthesis of fluorescent amino acids and how they have contributed to the field of chemical biology in the past 10 years. Important areas of research that we review include novel methodologies to synthesize building blocks with tunable spectral properties, their integration into peptide and protein scaffolds using site-specific genetic encoding and bioorthogonal approaches, and their application to design novel artificial proteins, as well as to investigate biological processes in cells by means of optical imaging.
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31
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Bhaskaran RP, Janardhanan JC, Babu BP. Metal‐Free Synthesis of Pyrazoles and Chromenopyrazoles from Hydrazones and Acetylenic Esters. ChemistrySelect 2020. [DOI: 10.1002/slct.202000719] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Rasmi P. Bhaskaran
- Department of ChemistryNational Institute of Technology Karnataka (NITK), Surathkal 575025 Mangalore
| | - Jith C. Janardhanan
- Department of Applied ChemistryCochin University of Science and Technology (CUSAT) Kochi 682022 INDIA
| | - Beneesh P. Babu
- Department of ChemistryNational Institute of Technology Karnataka (NITK), Surathkal 575025 Mangalore
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32
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Xi W, Yu J, Wei M, Qiu Q, Xu P, Qian Z, Feng H. Photophysical Switching between Aggregation‐Induced Phosphorescence and Dual‐State Emission by Isomeric Substitution. Chemistry 2020; 26:3733-3737. [DOI: 10.1002/chem.202000233] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Wenbin Xi
- Key Laboratory of the Ministry of Education for, Advanced Catalysis MaterialsDepartment of ChemistryCollege of Chemistry and Life SciencesZhejiang Normal University Yingbin Road 688 Jinhua 321004 P. R. China
| | - Junru Yu
- Key Laboratory of the Ministry of Education for, Advanced Catalysis MaterialsDepartment of ChemistryCollege of Chemistry and Life SciencesZhejiang Normal University Yingbin Road 688 Jinhua 321004 P. R. China
| | - Mengru Wei
- Key Laboratory of the Ministry of Education for, Advanced Catalysis MaterialsDepartment of ChemistryCollege of Chemistry and Life SciencesZhejiang Normal University Yingbin Road 688 Jinhua 321004 P. R. China
| | - Qianqian Qiu
- Key Laboratory of the Ministry of Education for, Advanced Catalysis MaterialsDepartment of ChemistryCollege of Chemistry and Life SciencesZhejiang Normal University Yingbin Road 688 Jinhua 321004 P. R. China
| | - Pengfei Xu
- Key Laboratory of the Ministry of Education for, Advanced Catalysis MaterialsDepartment of ChemistryCollege of Chemistry and Life SciencesZhejiang Normal University Yingbin Road 688 Jinhua 321004 P. R. China
| | - Zhaosheng Qian
- Key Laboratory of the Ministry of Education for, Advanced Catalysis MaterialsDepartment of ChemistryCollege of Chemistry and Life SciencesZhejiang Normal University Yingbin Road 688 Jinhua 321004 P. R. China
| | - Hui Feng
- Key Laboratory of the Ministry of Education for, Advanced Catalysis MaterialsDepartment of ChemistryCollege of Chemistry and Life SciencesZhejiang Normal University Yingbin Road 688 Jinhua 321004 P. R. China
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33
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González-Pérez M, Martins S, Manhita A, Caldeira AT, Pereira A. Coumarin Amine-Reactive DYE C392STP: an Efficient Building Block to Synthesize Single Labeled Oligonucleotides with Application as Fish Probes. APPL BIOCHEM MICRO+ 2020. [DOI: 10.1134/s0003683820010068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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34
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Pinna A, Basso A, Lambruschini C, Moni L, Riva R, Rocca V, Banfi L. Stereodivergent access to all four stereoisomers of chiral tetrahydrobenzo[f][1,4]oxazepines, through highly diastereoselective multicomponent Ugi–Joullié reaction. RSC Adv 2020; 10:965-972. [PMID: 35494435 PMCID: PMC9047508 DOI: 10.1039/c9ra10689h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 12/20/2019] [Indexed: 12/25/2022] Open
Abstract
Starting from easily accessible chiral enantiopure 1,2-amino alcohols and salicylaldehydes, a concise route to cyclic imines has been developed. These chiral cyclic imines undergo a highly diastereoselective Ugi–Joullié reaction to give trans tetrahydrobenzo[f][1,4]oxazepines with the introduction of up to 4 diversity inputs. The cis isomer may also be attained, thanks to a thermodynamically controlled base catalysed epimerization. Free secondary amines have been obtained using an unprecedented “removable” carboxylic acid. Starting from easily accessible enantiopure 1,2-aminoalcohols and salicylaldehydes, a concise and diastereodivergent route to tetrahydrobenzo[f][1,4]oxazepines has been developed.![]()
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Affiliation(s)
- Alessandro Pinna
- Department of Chemistry and Industrial Chemistry
- Università di Genova
- Italy
| | - Andrea Basso
- Department of Chemistry and Industrial Chemistry
- Università di Genova
- Italy
| | | | - Lisa Moni
- Department of Chemistry and Industrial Chemistry
- Università di Genova
- Italy
| | - Renata Riva
- Department of Pharmacy
- Università di Genova
- Italy
| | - Valeria Rocca
- Department of Chemistry and Industrial Chemistry
- Università di Genova
- Italy
| | - Luca Banfi
- Department of Chemistry and Industrial Chemistry
- Università di Genova
- Italy
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35
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Chen Y, Wu KL, Tang J, Loredo A, Clements J, Pei J, Peng Z, Gupta R, Fang X, Xiao H. Addition of Isocyanide-Containing Amino Acids to the Genetic Code for Protein Labeling and Activation. ACS Chem Biol 2019; 14:2793-2799. [PMID: 31682403 DOI: 10.1021/acschembio.9b00678] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Site-specific introduction of bioorthogonal handles into biomolecules provides powerful tools for studying and manipulating the structures and functions of proteins. Recent advances in bioorthogonal chemistry demonstrate that tetrazine-based bioorthogonal cycloaddition is a particularly useful methodology due to its high reactivity, biological selectivity, and turn-on property for fluorescence imaging. Despite its broad applications in protein labeling and imaging, utilization of tetrazine-based bioorthogonal cycloaddition has been limited to date by the requirement of a hydrophobic strained alkene reactive moiety. Circumventing this structural requirement, we report the site-specific incorporation of noncanonical amino acids (ncAAs) with a small isocyanide (or isonitrile) group into proteins in both bacterial and mammalian cells. We showed that under physiological conditions and in the absence of a catalyst these isocyanide-containing ncAAs could react selectively with tetrazine molecules via [4 + 1]-cycloaddition, thus providing a versatile bioorthogonal handle for site-specific protein labeling and protein decaging. Significantly, these bioorthogonal reactions between isocyanides and tetrazines also provide a unique mechanism for the activation of tetrazine-quenched fluorophores. The addition of these isocyanide-containing ncAAs to the list of 20 commonly used, naturally occurring amino acids expands our repertoire of reagents for bioorthogonal chemistry, therefore enabling new biological applications ranging from protein labeling and imaging studies to the chemical activation of proteins.
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Affiliation(s)
- Yuda Chen
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Kuan-Lin Wu
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Juan Tang
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Axel Loredo
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Jordan Clements
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Jingqi Pei
- Department of Biosciences, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Zane Peng
- Department of Biosciences, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Ruchi Gupta
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Xinlei Fang
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Han Xiao
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Biosciences, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Bioengineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
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36
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Subiros-Funosas R, Ho VCL, Barth ND, Mendive-Tapia L, Pappalardo M, Barril X, Ma R, Zhang CB, Qian BZ, Sintes M, Ghashghaei O, Lavilla R, Vendrell M. Fluorogenic Trp(redBODIPY) cyclopeptide targeting keratin 1 for imaging of aggressive carcinomas. Chem Sci 2019; 11:1368-1374. [PMID: 34123261 PMCID: PMC8148049 DOI: 10.1039/c9sc05558d] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 12/17/2019] [Indexed: 12/14/2022] Open
Abstract
Keratin 1 (KRT1) is overexpressed in squamous carcinomas and associated with aggressive pathologies in breast cancer. Herein we report the design and preparation of the first Trp-based red fluorogenic amino acid, which is synthetically accessible in a few steps and displays excellent photophysical properties, and its application in a minimally-disruptive labelling strategy to prepare a new fluorogenic cyclopeptide for imaging of KRT1+ cells in whole intact tumour tissues.
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Affiliation(s)
- Ramon Subiros-Funosas
- Centre for Inflammation Research, University of Edinburgh 47 Little France Crescent EH16 4TJ Edinburgh UK
| | - Vivian Cheuk Lam Ho
- Centre for Inflammation Research, University of Edinburgh 47 Little France Crescent EH16 4TJ Edinburgh UK
| | - Nicole D Barth
- Centre for Inflammation Research, University of Edinburgh 47 Little France Crescent EH16 4TJ Edinburgh UK
| | - Lorena Mendive-Tapia
- Centre for Inflammation Research, University of Edinburgh 47 Little France Crescent EH16 4TJ Edinburgh UK
| | - Morena Pappalardo
- Laboratory of Physical Chemistry, Facultat de Farmàcia, Universitat de Barcelona and Institut de Biomedicina de la Universitat de Barcelona (IBUB) Av. Joan XXIII s/n 08028 Barcelona Spain
| | - Xavier Barril
- Laboratory of Physical Chemistry, Facultat de Farmàcia, Universitat de Barcelona and Institut de Biomedicina de la Universitat de Barcelona (IBUB) Av. Joan XXIII s/n 08028 Barcelona Spain
| | - Ruoyu Ma
- MRC Centre for Reproductive Health, University of Edinburgh 47 Little France Crescent EH16 4TJ Edinburgh UK
| | - Cheng-Bin Zhang
- MRC Centre for Reproductive Health, University of Edinburgh 47 Little France Crescent EH16 4TJ Edinburgh UK
| | - Bin-Zhi Qian
- MRC Centre for Reproductive Health, University of Edinburgh 47 Little France Crescent EH16 4TJ Edinburgh UK
| | - Miquel Sintes
- Laboratory of Medicinal Chemistry, Faculty of Pharmacy, University of Barcelona and Institut de Biomedicina de la Universitat de Barcelona (IBUB) Avda Joan XXIII 27-30 Barcelona 08028 Spain
| | - Ouldouz Ghashghaei
- Laboratory of Medicinal Chemistry, Faculty of Pharmacy, University of Barcelona and Institut de Biomedicina de la Universitat de Barcelona (IBUB) Avda Joan XXIII 27-30 Barcelona 08028 Spain
| | - Rodolfo Lavilla
- Laboratory of Medicinal Chemistry, Faculty of Pharmacy, University of Barcelona and Institut de Biomedicina de la Universitat de Barcelona (IBUB) Avda Joan XXIII 27-30 Barcelona 08028 Spain
| | - Marc Vendrell
- Centre for Inflammation Research, University of Edinburgh 47 Little France Crescent EH16 4TJ Edinburgh UK
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37
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Oliden-Sánchez A, Sola-Llano R, Bañuelos J, García-Moreno I, Uriel C, López JC, Gómez AM. Tuning the Photonic Behavior of Symmetrical bis-BODIPY Architectures: The Key Role of the Spacer Moiety. Front Chem 2019; 7:801. [PMID: 31850302 PMCID: PMC6902057 DOI: 10.3389/fchem.2019.00801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 11/06/2019] [Indexed: 01/16/2023] Open
Abstract
Herein we describe the synthesis, computationally assisted spectroscopy, and lasing properties of a new library of symmetric bridged bis-BODIPYs that differ in the nature of the spacer. Access to a series of BODIPY dimers is straightforward through synthetic modifications of the pending ortho-hydroxymethyl group of readily available C-8 (meso) ortho-hydroxymethyl phenyl BODIPYs. In this way, we have carried out the first systematic study of the photonic behavior of symmetric bridged bis-BODIPYs, which is effectively modulated by the length and/or stereoelectronic properties of the spacer unit. The designed bis-BODIPYs display bright fluorescence and laser emission in non-polar media. The fluorescence response is governed by the induction of a non-emissive intramolecular charge transfer (ICT) process, which is significantly enhanced in polar media. The effectiveness of the fluorescence quenching and also the prevailing charge transfer mechanism (from the spacer itself or between the BODIPY units) rely directly on the electron-releasing ability of the spacer. Moreover, the linker moiety can also promote intramolecular excitonic interactions, leading to excimer-like emission characterized by new spectral bands and the lengthening of lifetimes. The substantial influence of the bridging moiety on the emission behavior of these BODIPY dyads and their solvent-sensitivity highlight the intricate molecular dynamics upon excitation in multichromophoric systems. In this regard, the present work represents a breakthrough in the complex relationship between the molecular structure of the chromophores and their photophysical signatures, thus providing key guidelines for rationalizing the design of tailored bis-BODIPYs with potential advanced applications.
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Affiliation(s)
- Ainhoa Oliden-Sánchez
- Molecular Spectroscopy Laboratory, Science and Technology Faculty, Physical Chemistry Department, Basque Country University (UPV/EHU), Bilbao, Spain
| | - Rebeca Sola-Llano
- Molecular Spectroscopy Laboratory, Science and Technology Faculty, Physical Chemistry Department, Basque Country University (UPV/EHU), Bilbao, Spain
| | - Jorge Bañuelos
- Molecular Spectroscopy Laboratory, Science and Technology Faculty, Physical Chemistry Department, Basque Country University (UPV/EHU), Bilbao, Spain
| | - Inmaculada García-Moreno
- Laser Materials Laboratory, "Rocasolano" Physical Chemistry Institute, Department of Low-Dimension Systems, Surfaces and Condensed Matter, CSIC, Madrid, Spain
| | - Clara Uriel
- Bioorganic Chemistry Department, Instituto de Química Orgánica General (IQOG-CSIC), Madrid, Spain
| | - J Cristobal López
- Bioorganic Chemistry Department, Instituto de Química Orgánica General (IQOG-CSIC), Madrid, Spain
| | - Ana M Gómez
- Bioorganic Chemistry Department, Instituto de Química Orgánica General (IQOG-CSIC), Madrid, Spain
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38
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Sola-Llano R, Jiménez J, Avellanal-Zaballa E, Johnson M, Cabreros T, Moreno F, Maroto B, Muller G, Bañuelos J, Cerdán L, García-Moreno I, de la Moya S. BOPHYs versus BODIPYs: A comparison of their performance as effective multi-function organic dyes. DYES AND PIGMENTS : AN INTERNATIONAL JOURNAL 2019; 170:107662. [PMID: 34054163 PMCID: PMC8157502 DOI: 10.1016/j.dyepig.2019.107662] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The computationally-aided photophysical and lasing properties of a selected battery of BOPHYs are described and compared to those of related BODIPY counterparts. The present joined theoretical-experimental study helps to put into context the weaknesses and strengths of both dye families under different irradiation conditions. The chemical versatility of the BOPHY scaffold has been also comparatively explored to modulate key photonic properties towards the development of red-emitting dyes, chiroptical dyes and singlet oxygen photosensitizers. Thus, BOPHY BINOLation by fluorine substitution with enantiopure BINOLs endows the BOPHY chromophore with chiroptical activity, as supporting by the simulated circular dichroism, decreasing deeply its fluorescent response due to the promotion of fluorescence-quenching intramolecular charge transfer (ICT). Interestingly, the sole alkylation of the BOPHY core strongly modulates the promotion of ICT, allowing the generation of highly bright BINOL-based BOPHY dyes. Moreover, 3,3'-dibromoBINOLating BOPHYs can easily achieve singlet-oxygen photogeneration, owing to spin-orbit coupling mediated by heavy-atom effect feasible in view of the theoretically predicted disposition of the bromines surrounding the chromophore. From this background, we have established the master guidelines to design bright fluorophores and laser dyes, photosensitizers for singlet oxygen production and chiroptical dyes based on BOPHYs. The possibility to finely mix and balance such properties in a given molecular scaffold outstands BOPHYs as promising dyes competing with the well-settled BODIPY dyes.
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Affiliation(s)
- R. Sola-Llano
- Departamento de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080, Bilbao, Spain
| | - J. Jiménez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - E. Avellanal-Zaballa
- Departamento de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080, Bilbao, Spain
| | - M. Johnson
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | - T.A. Cabreros
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | - F. Moreno
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - B.L. Maroto
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - G. Muller
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | - J. Bañuelos
- Departamento de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080, Bilbao, Spain
| | - L. Cerdán
- Departamento de Sistemas de Baja Dimensionalidad, Superficies y Materia Condensada, Instituto de Química Física “Rocasolano”, CSIC, Serrano 119, 28006, Madrid, Spain
| | - I. García-Moreno
- Departamento de Sistemas de Baja Dimensionalidad, Superficies y Materia Condensada, Instituto de Química Física “Rocasolano”, CSIC, Serrano 119, 28006, Madrid, Spain
| | - S. de la Moya
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
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39
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Renault K, Debieu S, Richard JA, Romieu A. Deeper insight into protease-sensitive "covalent-assembly" fluorescent probes for practical biosensing applications. Org Biomol Chem 2019; 17:8918-8932. [PMID: 31560014 DOI: 10.1039/c9ob01773a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We report a rational and systematic study devoted to the structural optimisation of a novel class of protease-sensitive fluorescent probes that we recently reported (S. Debieu and A. Romieu, Org. Biomol. Chem., 2017, 15, 2575-2584), based on the "covalent-assembly" strategy and using the targeted enzyme penicillin G acylase as a model protease to build a fluorescent pyronin dye by triggering a biocompatible domino cyclisation-aromatisation reaction. The aim is to identify ad hoc probe candidate(s) that might combine fast/reliable fluorogenic "turn-on" response, full stability in complex biological media and ability to release a second molecule of interest (drug or second fluorescent reporter), for applications in disease diagnosis and therapy. We base our strategy on screening a set of active methylene compounds (C-nucleophiles) to convert the parent probe to various pyronin caged precursors bearing Michael acceptor moieties of differing reactivities. In vitro stability and fluorescent enzymatic assays combined with HPLC-fluorescence analyses provide data useful for defining the most appropriate structural features for these fluorogenic scaffolds depending on the specifications inherent to biological application (from biosensing to theranostics) for which they will be used.
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Affiliation(s)
- Kévin Renault
- ICMUB, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21000 Dijon, France.
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40
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Sokolova EA, Festa AA, Golantsov NE, Lukonina NS, Ioffe IN, Varlamov AV, Voskressensky LG. Highly Fluorescent Pyrido[2,3-b
]indolizine-10-Carbonitriles through Pseudo Three-Component Reactions of N
-(Cyanomethyl)pyridinium Salts. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900995] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ekaterina A. Sokolova
- Organic Chemistry Department; Science Faculty; Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklaya st., 6 Moscow Russia
| | - Alexey A. Festa
- Organic Chemistry Department; Science Faculty; Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklaya st., 6 Moscow Russia
| | - Nikita E. Golantsov
- Organic Chemistry Department; Science Faculty; Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklaya st., 6 Moscow Russia
| | - Natalia S. Lukonina
- Department of Chemistry; Lomonosov Moscow State University; Leninskie Gory, 1-3 119991 Moscow Russia
| | - Ilya N. Ioffe
- Department of Chemistry; Lomonosov Moscow State University; Leninskie Gory, 1-3 119991 Moscow Russia
| | - Alexey V. Varlamov
- Organic Chemistry Department; Science Faculty; Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklaya st., 6 Moscow Russia
| | - Leonid G. Voskressensky
- Organic Chemistry Department; Science Faculty; Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklaya st., 6 Moscow Russia
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41
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A Brønsted Acid-Catalyzed Multicomponent Reaction for the Synthesis of Highly Functionalized γ-Lactam Derivatives. Molecules 2019; 24:molecules24162951. [PMID: 31416281 PMCID: PMC6719937 DOI: 10.3390/molecules24162951] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/06/2019] [Accepted: 08/11/2019] [Indexed: 12/22/2022] Open
Abstract
Brønsted acids catalyze a multicomponent reaction of benzaldehyde with amines and diethyl acetylenedicarboxylate to afford highly functionalized γ-lactam derivatives. The reaction consists of a Mannich reaction of an enamine to an imine, both generated in situ, promoted by a phosphoric acid catalyst and a subsequent intramolecular cyclization. The hydrolysis of the cyclic enamine substrate can provide enol derivatives and, moreover, a second attack of the amine on the carboxylate can afford amide derivatives. An optimization of the reaction conditions is presented in order to obtain selectively cyclic enamines that can afford the enol species after selective hydrolysis.
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42
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Cheng Z, Valença WO, Dias GG, Scott J, Barth ND, de Moliner F, Souza GBP, Mellanby RJ, Vendrell M, da Silva Júnior EN. Natural product-inspired profluorophores for imaging NQO1 activity in tumour tissues. Bioorg Med Chem 2019; 27:3938-3946. [PMID: 31327676 DOI: 10.1016/j.bmc.2019.07.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/08/2019] [Accepted: 07/10/2019] [Indexed: 11/30/2022]
Abstract
Herein we designed a collection of trimethyl-lock quinone profluorophores as activity-based probes for imaging NAD(P)H:quinone oxidoreductase (NQO1) in cancer cells and tumour tissues. Profluorophores were prepared via synthetic routes from naturally-occurring quinones and characterised in vitro using recombinant enzymes, to be further validated in cells and fresh frozen canine tumour tissues as potential new tools for cancer detection and imaging.
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Affiliation(s)
- Zhiming Cheng
- Centre for Inflammation Research, The University of Edinburgh, EH16 4TJ Edinburgh, UK
| | - Wagner O Valença
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Gleiston G Dias
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Jamie Scott
- Centre for Inflammation Research, The University of Edinburgh, EH16 4TJ Edinburgh, UK
| | - Nicole D Barth
- Centre for Inflammation Research, The University of Edinburgh, EH16 4TJ Edinburgh, UK
| | - Fabio de Moliner
- Centre for Inflammation Research, The University of Edinburgh, EH16 4TJ Edinburgh, UK
| | - Gabriela B P Souza
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Richard J Mellanby
- Royal (Dick) School of Veterinary Studies, The Roslin Institute, Division of Veterinary Clinical Studies, The University of Edinburgh, Hospital for Small Animals, Easter Bush Veterinary Centre, EH25 9RG Roslin, UK
| | - Marc Vendrell
- Centre for Inflammation Research, The University of Edinburgh, EH16 4TJ Edinburgh, UK.
| | - Eufrânio N da Silva Júnior
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil.
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43
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He D, Zhuang Z, Wang X, Li J, Li J, Wu W, Zhao Z, Jiang H, Tang BZ. Assembly of 1 H-isoindole derivatives by selective carbon-nitrogen triple bond activation: access to aggregation-induced emission fluorophores for lipid droplet imaging. Chem Sci 2019; 10:7076-7081. [PMID: 31588275 PMCID: PMC6677114 DOI: 10.1039/c9sc01035a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/07/2019] [Indexed: 12/14/2022] Open
Abstract
A method of selectively activating carbon–nitrogen triple bonds has been developed to access 1H-isoindole AIE fluorophores for lipid droplet imaging.
A novel strategy has been established to assemble a series of single (Z)- or (E)-1H-isoindole derivatives through selectively and sequentially activating carbon–nitrogen triple bonds in a multicomponent system containing various nucleophilic and electrophilic sites. The reaction provides efficient access to structurally unique fluorophores with aggregation-induced emission characteristics. These new fluorophores show fluorescence wavelengths and efficiencies that can be modulated and have excellent potential to specifically light up lipid droplets (LDs) in living cells with bright fluorescence, low cytotoxicity and better photostability than commercially available LD-specific dyes.
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Affiliation(s)
- Dandan He
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Zeyan Zhuang
- State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China .
| | - Xu Wang
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Jiawei Li
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ; .,State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China .
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China .
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China . .,Department of Chemistry , Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction , The Hong Kong University of Science & Technology , Kowloon , Hong Kong , China
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44
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Benson S, Fernandez A, Barth ND, de Moliner F, Horrocks MH, Herrington CS, Abad JL, Delgado A, Kelly L, Chang Z, Feng Y, Nishiura M, Hori Y, Kikuchi K, Vendrell M. SCOTfluors: Small, Conjugatable, Orthogonal, and Tunable Fluorophores for In Vivo Imaging of Cell Metabolism. Angew Chem Int Ed Engl 2019; 58:6911-6915. [PMID: 30924239 PMCID: PMC6563150 DOI: 10.1002/anie.201900465] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Indexed: 12/11/2022]
Abstract
The transport and trafficking of metabolites are critical for the correct functioning of live cells. However, in situ metabolic imaging studies are hampered by the lack of fluorescent chemical structures that allow direct monitoring of small metabolites under physiological conditions with high spatial and temporal resolution. Herein, we describe SCOTfluors as novel small-sized multi-colored fluorophores for real-time tracking of essential metabolites in live cells and in vivo and for the acquisition of metabolic profiles from human cancer cells of variable origin.
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Affiliation(s)
- Sam Benson
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | - Antonio Fernandez
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | - Nicole D. Barth
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | - Fabio de Moliner
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | - Mathew H. Horrocks
- UK Dementia Research Institute and EaStCHEM School of ChemistryThe University of EdinburghEH9 3FJEdinburghUK
| | | | - Jose Luis Abad
- Research Unit on Bioactive MoleculesInstitute for Advanced Chemistry of Catalonia08034BarcelonaSpain
- University of BarcelonaFaculty of Pharmacy, Unit of Pharmaceutical Chemistry (CSIC Associated Unit)BarcelonaSpain
| | - Antonio Delgado
- Research Unit on Bioactive MoleculesInstitute for Advanced Chemistry of Catalonia08034BarcelonaSpain
- University of BarcelonaFaculty of Pharmacy, Unit of Pharmaceutical Chemistry (CSIC Associated Unit)BarcelonaSpain
| | - Lisa Kelly
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | - Ziyuan Chang
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | - Yi Feng
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | | | - Yuichiro Hori
- Graduate School of EngineeringOsaka UniversitySuitaJapan
| | - Kazuya Kikuchi
- Graduate School of EngineeringOsaka UniversitySuitaJapan
| | - Marc Vendrell
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
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45
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Treadwell R, de Moliner F, Subiros-Funosas R, Hurd T, Knox K, Vendrell M. A fluorescent activatable probe for imaging intracellular Mg 2+ . Org Biomol Chem 2019; 16:239-244. [PMID: 29256562 PMCID: PMC5789582 DOI: 10.1039/c7ob02965a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An BODIPY probe for detection and imaging of Mg2+ without interference from Ca2+ is described.
An activatable BODIPY probe for in vitro detection and fluorescence cell imaging of free Mg2+ without interference from Ca2+ is described. Fluorescence amplification of the probe is observed upon detection of physiological concentrations of Mg2+ due to reduced rotation of the fluorophore and effective chelation by a quinolizine-based core.
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Affiliation(s)
- Ryan Treadwell
- Medical Research Council Centre for Inflammation Research, The University of Edinburgh, EH16 4TJ Edinburgh, UK.
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46
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Benson S, Fernandez A, Barth ND, de Moliner F, Horrocks MH, Herrington CS, Abad JL, Delgado A, Kelly L, Chang Z, Feng Y, Nishiura M, Hori Y, Kikuchi K, Vendrell M. SCOTfluors: Small, Conjugatable, Orthogonal, and Tunable Fluorophores for In Vivo Imaging of Cell Metabolism. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900465] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Sam Benson
- Centre for Inflammation ResearchThe University of Edinburgh EH16 4TJ Edinburgh UK
| | - Antonio Fernandez
- Centre for Inflammation ResearchThe University of Edinburgh EH16 4TJ Edinburgh UK
| | - Nicole D. Barth
- Centre for Inflammation ResearchThe University of Edinburgh EH16 4TJ Edinburgh UK
| | - Fabio de Moliner
- Centre for Inflammation ResearchThe University of Edinburgh EH16 4TJ Edinburgh UK
| | - Mathew H. Horrocks
- UK Dementia Research Institute and EaStCHEM School of ChemistryThe University of Edinburgh EH9 3FJ Edinburgh UK
| | | | - Jose Luis Abad
- Research Unit on Bioactive MoleculesInstitute for Advanced Chemistry of Catalonia 08034 Barcelona Spain
- University of BarcelonaFaculty of Pharmacy, Unit of Pharmaceutical Chemistry (CSIC Associated Unit) Barcelona Spain
| | - Antonio Delgado
- Research Unit on Bioactive MoleculesInstitute for Advanced Chemistry of Catalonia 08034 Barcelona Spain
- University of BarcelonaFaculty of Pharmacy, Unit of Pharmaceutical Chemistry (CSIC Associated Unit) Barcelona Spain
| | - Lisa Kelly
- Centre for Inflammation ResearchThe University of Edinburgh EH16 4TJ Edinburgh UK
| | - Ziyuan Chang
- Centre for Inflammation ResearchThe University of Edinburgh EH16 4TJ Edinburgh UK
| | - Yi Feng
- Centre for Inflammation ResearchThe University of Edinburgh EH16 4TJ Edinburgh UK
| | | | - Yuichiro Hori
- Graduate School of EngineeringOsaka University Suita Japan
| | - Kazuya Kikuchi
- Graduate School of EngineeringOsaka University Suita Japan
| | - Marc Vendrell
- Centre for Inflammation ResearchThe University of Edinburgh EH16 4TJ Edinburgh UK
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47
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Gartzia-Rivero L, Ray Leiva C, Sánchez-Carnerero EM, Bañuelos J, Moreno F, Maroto BL, García-Moreno I, Infantes L, Mendez B, López-Arbeloa I, de la Moya S. Chiral Microneedles from an Achiral Bis(boron dipyrromethene): Spontaneous Mirror Symmetry Breaking Leading to a Promising Photoluminescent Organic Material. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5021-5028. [PMID: 30892895 DOI: 10.1021/acs.langmuir.9b00409] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Supramolecular self-assembly of a highly flexible and achiral meso bis(boron dipyrromethene) [bis(BODIPY)] dye straightforwardly yields fluorescent microfibers, exhibiting an intriguing anisotropic photonic behavior. This performance includes the generation of chiroptical activity owing to spontaneous mirror symmetry breaking (SMSB). Repetition of several self-assembly experiments demonstrates that the involved SMSB is not stochastic but quasi deterministic in the direction of the induced chiral asymmetry. The origin of these intriguing (chiro)photonic properties is revealed by fluorescent microspectroscopy studies of individual micrometric objects, combined with X-ray diffraction elucidation of microcrystals. Such a study demonstrates that J-like excitonic coupling between bis(BODIPY) units plays a fundamental role in their supramolecular organization, leading to axial chirality. Interestingly, the photonic behavior of the obtained fibers is ruled by inherent nonradiative pathways from the involved push-pull chromophores, and mainly by the complex excitonic interactions induced by their anisotropic supramolecular organization.
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Affiliation(s)
- Leire Gartzia-Rivero
- Departamento de Química Física , Universidad del País Vasco (UPV/EHU) , 644, 48080 Bilbao , Spain
| | | | | | - Jorge Bañuelos
- Departamento de Química Física , Universidad del País Vasco (UPV/EHU) , 644, 48080 Bilbao , Spain
| | | | | | | | | | | | - Iñigo López-Arbeloa
- Departamento de Química Física , Universidad del País Vasco (UPV/EHU) , 644, 48080 Bilbao , Spain
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48
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Ansari AJ, Joshi G, Sharma P, Maurya AK, Metre RK, Agnihotri VK, Chandaluri CG, Kumar R, Singh S, Sawant DM. Pd-Catalyzed Four-Component Sequential Reaction Delivers a Modular Fluorophore Platform for Cell Imaging. J Org Chem 2019; 84:3817-3825. [DOI: 10.1021/acs.joc.8b02845] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Arshad J. Ansari
- School of Chemical Sciences and Pharmacy, Central University of Rajasthan NH-8, Bandarsindri, Ajmer 305817, India
| | - Gaurav Joshi
- Laboratory for Drug Design and Synthesis, Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab 151001, India
| | - Praveen Sharma
- Laboratory of Molecular Medicine, Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, Punjab 151001, India
| | - Antim K. Maurya
- Natural Product Chemistry and Process Development Division, CSIR-IHBT, Palampur, Himachal Pradesh 176061, India
| | - Ramesh K. Metre
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwad, Jodhpur, Rajasthan 342037, India
| | - Vijai K. Agnihotri
- Natural Product Chemistry and Process Development Division, CSIR-IHBT, Palampur, Himachal Pradesh 176061, India
| | - Chanchayya Gupta Chandaluri
- School of Chemical Sciences and Pharmacy, Central University of Rajasthan NH-8, Bandarsindri, Ajmer 305817, India
| | - Raj Kumar
- Laboratory for Drug Design and Synthesis, Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab 151001, India
| | - Sandeep Singh
- Laboratory of Molecular Medicine, Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, Punjab 151001, India
| | - Devesh M. Sawant
- School of Chemical Sciences and Pharmacy, Central University of Rajasthan NH-8, Bandarsindri, Ajmer 305817, India
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49
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Banasiewicz M, Stężycki R, Kumar GD, Krzeszewski M, Tasior M, Koszarna B, Janiga A, Vakuliuk O, Sadowski B, Gryko DT, Jacquemin D. Electronic Communication in Pyrrolo[3,2-b
]pyrroles Possessing Sterically Hindered Aromatic Substituents. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801809] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Marzena Banasiewicz
- Institute of Physics; Polish Academy of Sciences; Al. Lotników 32/46, 02-668 Warsaw Poland
| | - Rafał Stężycki
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - G. Dinesh Kumar
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Maciej Krzeszewski
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Mariusz Tasior
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Beata Koszarna
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Anita Janiga
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Olena Vakuliuk
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Bartłomiej Sadowski
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Daniel T. Gryko
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Denis Jacquemin
- CEISAM, UMR CNRS 6230; Université de Nantes; 2, rue de la Houssinière 44322 Nantes, Cedex 3 France
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50
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Qu Y, Pander P, Bucinskas A, Vasylieva M, Tian Y, Miomandre F, Dias FB, Clavier G, Data P, Audebert P. Convenient One-Pot Synthesis of 1,2,3,4-Thiatriazoles Towards a Novel Electron Acceptor for Highly-Efficient Thermally-Activated Delayed-Fluorescence Emitters. Chemistry 2019; 25:2457-2462. [PMID: 30680814 DOI: 10.1002/chem.201805358] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/07/2018] [Indexed: 01/22/2023]
Abstract
A novel and unexpected convenient one-pot synthesis of 1,2,3,4-thiatriazoles has been discovered while investigating the classical tetrazine "Pinner synthesis". The synthetic route starts from commercially-available nitrile derivatives and gives good to high yields (51-80 %) with no need to isolate any thioacylating agents. The crucial impact of the solvent on the outcome of the modified "Pinner synthesis" is moreover examined and discussed. Using this new synthetic route, a novel donor-acceptor thiatriazole derivative has been prepared, which exhibits prominent thermally-activated delayed fluorescence (TADF) in both solution and film. The photoluminescence quantum yield (PLQY) in methylcyclohexane (MCH) and Zeonex (a cyclo olefin polymer) in oxygen-free conditions were determined to be 76 and 99 %, respectively. This work provides an efficient and practical synthetic approach to functionalized 1,2,3,4-thiatriazole derivatives, and will noticeably facilitate the application of 1,2,3,4-thiatriazole as an electron acceptor in organic electronics.
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Affiliation(s)
- Yangyang Qu
- PPSM, CNRS, ENS Paris-Saclay, 61 Avenue Président Wilson, 94235, Cachan, France
| | - Piotr Pander
- Physics Department, Durham University, South Road, Durham, DH1 3LE, UK
| | - Audrius Bucinskas
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, K. Baršausko St. 59, Kaunas, LT-51423, Lithuania
| | - Marharyta Vasylieva
- Faculty of Chemistry, Silesian University of Technology, M. Stzody 9, 44-100, Gliwice, Poland
| | - Yayang Tian
- PPSM, CNRS, ENS Paris-Saclay, 61 Avenue Président Wilson, 94235, Cachan, France
| | - Fabien Miomandre
- PPSM, CNRS, ENS Paris-Saclay, 61 Avenue Président Wilson, 94235, Cachan, France
| | - Fernando B Dias
- Physics Department, Durham University, South Road, Durham, DH1 3LE, UK
| | - Gilles Clavier
- PPSM, CNRS, ENS Paris-Saclay, 61 Avenue Président Wilson, 94235, Cachan, France
| | - Przemyslaw Data
- Physics Department, Durham University, South Road, Durham, DH1 3LE, UK.,Faculty of Chemistry, Silesian University of Technology, M. Stzody 9, 44-100, Gliwice, Poland
| | - Pierre Audebert
- PPSM, CNRS, ENS Paris-Saclay, 61 Avenue Président Wilson, 94235, Cachan, France
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