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Werner M, Pampel J, Pham TL, Thomas F. Late‐Stage Functionalisation of Peptides on the Solid Phase by an Iodination‐Substitution Approach. Chemistry 2022; 28:e202201339. [PMID: 35700354 PMCID: PMC9545490 DOI: 10.1002/chem.202201339] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Indexed: 11/20/2022]
Abstract
The functionalisation of peptides at a late synthesis stage holds great potential, for example, for the synthesis of peptide pharmaceuticals, fluorescent biosensors or peptidomimetics. Here we describe an on‐resin iodination‐substitution reaction sequence on homoserine that is also suitable for peptide modification in a combinatorial format. The reaction sequence is accessible to a wide range of sulfur nucleophiles with various functional groups including boronic acids, hydroxy groups or aromatic amines. In this way, methionine‐like thioethers or thioesters and thiosulfonates are accessible. Next to sulfur nucleophiles, selenols, pyridines and carboxylic acids were successfully used as nucleophiles, whereas phenols did not react. The late‐stage iodination‐substitution approach is not only applicable to short peptides but also to the more complex 34‐amino‐acid WW domains. We applied this strategy to introduce 7‐mercapto‐4‐methylcoumarin into a switchable ZnII responsive WW domain to design an iFRET‐based ZnII sensor.
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Affiliation(s)
- Marius Werner
- Institute of Organic Chemistry Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Centre for Advanced Materials (CAM) Heidelberg University Im Neuenheimer Feld 225 69120 Heidelberg Germany
- Department of Medicinal Chemistry Institute of Pharmacy and Molecular Biotechnology (IPMB) Heidelberg University Im Neuenheimer Feld 364 69120 Heidelberg Germany
| | - Julius Pampel
- Department of Chemical Biology Max Planck Institute for Medical Research Jahnstraße 29 69120 Heidelberg Germany
| | - Truc Lam Pham
- Institute of Organic Chemistry Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Centre for Advanced Materials (CAM) Heidelberg University Im Neuenheimer Feld 225 69120 Heidelberg Germany
| | - Franziska Thomas
- Institute of Organic Chemistry Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Centre for Advanced Materials (CAM) Heidelberg University Im Neuenheimer Feld 225 69120 Heidelberg Germany
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2
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El-Sawy ER, Abdelwahab AB, Kirsch G. Insight on Mercapto-Coumarins: Synthesis and Reactivity. Molecules 2022; 27:2150. [PMID: 35408548 PMCID: PMC9000435 DOI: 10.3390/molecules27072150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 03/23/2022] [Accepted: 03/23/2022] [Indexed: 11/22/2022] Open
Abstract
Mercapto (or sulfanyl)-coumarins are heterocycles of great interest in the development of valuable active structures in material and biological domains. They represent a highly exploitable class of compounds that open many possibilities for further chemical transformations. The present review aims to draw focus toward the synthetic applicability of various forms of mercapto-coumarins and their representations in pharmaceuticals and industries. This work covers the literature issued from 1970 to 2021.
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Affiliation(s)
- Eslam Reda El-Sawy
- National Research Centre, Chemistry of Natural Compounds Department, Dokki, Cairo 12622, Egypt
| | | | - Gilbert Kirsch
- Laboratoire Lorrain de Chimie Moleculaire (L.2.C.M.), Universite de Lorraine, 57050 Metz, France
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3
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Bui DT, Havelek R, Královec K, Kubíčková L, Kuličková J, Matouš P, Herynek V, Kupčík J, Muthná D, Řezanka P, Kaman O. Multimodal Contrast Agent Enabling pH Sensing Based on Organically Functionalized Gold Nanoshells with Mn-Zn Ferrite Cores. NANOMATERIALS 2022; 12:nano12030428. [PMID: 35159772 PMCID: PMC8839728 DOI: 10.3390/nano12030428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/24/2022] [Accepted: 01/25/2022] [Indexed: 12/14/2022]
Abstract
Highly complex nanoparticles combining multimodal imaging with the sensing of physical properties in biological systems can considerably enhance biomedical research, but reports demonstrating the performance of a single nanosized probe in several imaging modalities and its sensing potential at the same time are rather scarce. Gold nanoshells with magnetic cores and complex organic functionalization may offer an efficient multimodal platform for magnetic resonance imaging (MRI), photoacoustic imaging (PAI), and fluorescence techniques combined with pH sensing by means of surface-enhanced Raman spectroscopy (SERS). In the present study, the synthesis of gold nanoshells with Mn-Zn ferrite cores is described, and their structure, composition, and fundamental properties are analyzed by powder X-ray diffraction, X-ray fluorescence spectroscopy, transmission electron microscopy, magnetic measurements, and UV-Vis spectroscopy. The gold surface is functionalized with four different model molecules, namely thioglycerol, meso-2,3-dimercaptosuccinate, 11-mercaptoundecanoate, and (11-mercaptoundecyl)-N,N,N-trimethylammonium bromide, to analyze the effect of varying charge and surface chemistry on cells in vitro. After characterization by dynamic and electrophoretic light scattering measurements, it is found that the particles do not exhibit significant cytotoxic effects, irrespective of the surface functionalization. Finally, the gold nanoshells are functionalized with a combination of 4-mercaptobenzoic acid and 7-mercapto-4-methylcoumarin, which introduces a SERS active pH sensor and a covalently attached fluorescent tag at the same time. 1H NMR relaxometry, fluorescence spectroscopy, and PAI demonstrate the multimodal potential of the suggested probe, including extraordinarily high transverse relaxivity, while the SERS study evidences a pH-dependent spectral response.
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Affiliation(s)
- Duong Thuy Bui
- Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10, 162 00 Prague, Czech Republic; (D.T.B.); (L.K.); (J.K.); (J.K.)
- Department of Analytical Chemistry, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic;
| | - Radim Havelek
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03 Hradec Králové, Czech Republic; (R.H.); (K.K.); (D.M.)
| | - Karel Královec
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03 Hradec Králové, Czech Republic; (R.H.); (K.K.); (D.M.)
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Lenka Kubíčková
- Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10, 162 00 Prague, Czech Republic; (D.T.B.); (L.K.); (J.K.); (J.K.)
- Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague, Czech Republic
| | - Jarmila Kuličková
- Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10, 162 00 Prague, Czech Republic; (D.T.B.); (L.K.); (J.K.); (J.K.)
| | - Petr Matouš
- Center for Advanced Preclinical Imaging (CAPI), First Faculty of Medicine, Charles University, Salmovská 2, 120 00 Prague, Czech Republic; (P.M.); (V.H.)
| | - Vít Herynek
- Center for Advanced Preclinical Imaging (CAPI), First Faculty of Medicine, Charles University, Salmovská 2, 120 00 Prague, Czech Republic; (P.M.); (V.H.)
| | - Jaroslav Kupčík
- Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10, 162 00 Prague, Czech Republic; (D.T.B.); (L.K.); (J.K.); (J.K.)
| | - Darina Muthná
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03 Hradec Králové, Czech Republic; (R.H.); (K.K.); (D.M.)
| | - Pavel Řezanka
- Department of Analytical Chemistry, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic;
| | - Ondřej Kaman
- Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10, 162 00 Prague, Czech Republic; (D.T.B.); (L.K.); (J.K.); (J.K.)
- Correspondence: ; Tel.: +420-220-318-418
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Węcławski MK, Deperasińska I, Banasiewicz M, Young DC, Leniak A, Gryko DT. Building Molecular Complexity from Quinizarin: Conjoined Coumarins and Coronene Analogs. Chem Asian J 2019; 14:1763-1770. [PMID: 30022613 DOI: 10.1002/asia.201800757] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/08/2018] [Indexed: 12/20/2022]
Abstract
The double Knoevenagel condensation of 1,4-dibenzoyloxyanthraquinone with methyl esters of arylacetic acids affords a series of compounds based upon a previously unknown 1,8-dioxa-benzo[e]pyrene-2,7-dione heterocyclic core. The aryl groups incorporated in the 3- and 6-positions can be oxidatively coupled to the π-expanded backbone to produce a further new heterocyclic core: 1,10-dioxa-dibenzo[dj]coronene-2,9-dione. The intriguing optical properties of these π-expanded coumarin derivatives are discussed and rationalized through quantum chemical calculations. The broad absorption bands of 1,8-dioxa-benzo[e]pyrene-2,7-dione-based dyes are attributed to both HOMO-1→LUMO and HOMO→LUMO transitions, which have a similar energy. Weakly coupled electron-donating aryl substituents result in a moderate bathochromic shift of both the absorption and emission by 30-60 nm in toluene. The emissive properties of these compounds are in part determined by the oscillator strength of the main transition, lifetimes of the excited state, and by the energy match of the excited state with a triplet state of a similar energy. The 1,10-dioxa-dibenzo[dj]coronene-2,9-dione displays a much smaller Stokes shift, yet a markedly increased fluorescence quantum yield of 90 % owing to the increased rigidity compared with the 1,8-dioxa-benzo[e]pyrene-2,7-dione core.
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Affiliation(s)
- Marek K Węcławski
- Institute of Organc Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland
| | - Irena Deperasińska
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668, Warsaw, Poland
| | - Marzena Banasiewicz
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668, Warsaw, Poland
| | - David C Young
- Institute of Organc Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland
| | - Arkadiusz Leniak
- Institute of Organc Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland
| | - Daniel T Gryko
- Institute of Organc Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland
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Kielesiński Ł, Morawski OW, Sobolewski AL, Gryko DT. The synthesis and photophysical properties of tris-coumarins. Phys Chem Chem Phys 2019; 21:8314-8325. [PMID: 30951072 DOI: 10.1039/c9cp00978g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A structurally unique cyclic tris-coumarin possessing three identical coumarin units bridged by amide linkers as well as two linear analogs has been synthesized. There is a remarkable agreement between crystallographic data, 1H NMR and results of calculations for the cyclic tris-coumarin, showing in all cases a non-symmetric arrangement of identical coumarin moieties. Weak polarization of the coumarin subunits, resulting from the presence of only CONH- groups as electron-donors, results in a hypsochromic shift of both absorption and emission in this dye. We have proven that in non-cyclic, head-to-tail linked tris-coumarins, the photophysics is controlled not only by the substituents but also by the conformation of the molecule, which in turn depends on the nature of the linker's interactions. These can be controlled by the presence/absence of an amide-type hydrogen atom responsible for the formation of intramolecular hydrogen bonds. The presence of a hydrogen bond favors a stretched trans conformation of the dye, while in its absence, folding of the molecule occurs leading to a more compact conformation. Although, the increased number of covalently linked coumarin units does not drastically change the preferred conformation, the fluorescence quantum yields of tris-coumarins are significantly lower than for analogous bis-coumarins composed of the same units.
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Affiliation(s)
- Łukasz Kielesiński
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
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Binding, and thermodynamics of β-cyclodextrin inclusion complexes with some coumarin laser dyes and coumarin-based enzyme substrates: a simulation study. J INCL PHENOM MACRO 2018. [DOI: 10.1007/s10847-018-0850-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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7
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Barzegar Amiri Olia M, Hancock AN, Schiesser CH, Goerigk L, Wille U. Photophysical insights and guidelines for blue “turn‐on” fluorescent probes for the direct detection of nitric oxide (NO
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) in biological systems. J PHYS ORG CHEM 2018. [DOI: 10.1002/poc.3896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | - Amber N. Hancock
- School of Chemistry Bio21 Institute, The University of Melbourne Parkville Victoria Australia
| | | | - Lars Goerigk
- School of Chemistry The University of Melbourne Parkville Victoria Australia
| | - Uta Wille
- School of Chemistry Bio21 Institute, The University of Melbourne Parkville Victoria Australia
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Bard A, Rondon R, Marquez DT, Lanterna AE, Scaiano JC. How Fast Can Thiols Bind to the Gold Nanoparticle Surface? Photochem Photobiol 2018; 94:1109-1115. [PMID: 30192996 DOI: 10.1111/php.13010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 08/24/2018] [Indexed: 11/27/2022]
Abstract
Kinetics of gold nanoparticle surface modification with thiols can take more than one hour for completion. 7-mercapto-4-methylcoumarin can be used to follow the process by fluorescence spectroscopy and serves as a convenient molecular probe to determine relative kinetics. SERS studies with aromatic thiols further support the slow surface modification kinetics observed by fluorescence spectroscopy. The formation of thiolate bonds is a relatively slow process; we recommend one to two hour wait for thiol binding to be essentially complete, while for disulfides, overnight incubation is suggested.
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Affiliation(s)
- Amanda Bard
- Department of Chemistry and Biomolecular Sciences, Centre for Advanced Materials Research (CAMaR), University of Ottawa, Ottawa, ON, Canada
| | - Rebeca Rondon
- Department of Chemistry and Biomolecular Sciences, Centre for Advanced Materials Research (CAMaR), University of Ottawa, Ottawa, ON, Canada
| | - Daniela T Marquez
- Department of Chemistry and Biomolecular Sciences, Centre for Advanced Materials Research (CAMaR), University of Ottawa, Ottawa, ON, Canada
| | - Anabel E Lanterna
- Department of Chemistry and Biomolecular Sciences, Centre for Advanced Materials Research (CAMaR), University of Ottawa, Ottawa, ON, Canada
| | - Juan C Scaiano
- Department of Chemistry and Biomolecular Sciences, Centre for Advanced Materials Research (CAMaR), University of Ottawa, Ottawa, ON, Canada
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González-Pérez M, Ooi SY, Martins S, Prates Ramalho JP, Pereira A, Caldeira AT. Gaining insight into the photophysical properties of a coumarin STP ester with potential for bioconjugation. NEW J CHEM 2018. [DOI: 10.1039/c8nj03548b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The photophysical properties of a coumarin 392 4-sulfotetrafluorophenyl ester, C392STP (sodium (E/Z)-4-(4-(2-(6,7-dimethoxycoumarin-3-yl)vinyl)-benzoyl)-2,3,5,6-tetrafluoro-benzenesulfonate), an amine reactive coumarine with potential for bioconjungation, have been studied in different solvents.
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Affiliation(s)
| | - S. Y. Ooi
- Chemistry Department
- School of Sciences and Technology
- Evora University
- Evora
- Portugal
| | - S. Martins
- HERCULES Laboratory
- Evora University
- Evora
- Portugal
| | | | - A. Pereira
- HERCULES Laboratory
- Evora University
- Evora
- Portugal
- Chemistry Department
| | - A. T. Caldeira
- HERCULES Laboratory
- Evora University
- Evora
- Portugal
- Chemistry Department
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Kielesiński Ł, Gryko DT, Sobolewski AL, Morawski OW. Effect of conformational flexibility on photophysics of bis-coumarins. Phys Chem Chem Phys 2018; 20:14491-14503. [DOI: 10.1039/c8cp01084f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The fluorescence of bis-coumarins linked via CONH and COO functionalities is strongly dependant on solvent polarity.
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Affiliation(s)
- Łukasz Kielesiński
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
- Institute of Physics
| | - Daniel T. Gryko
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | | | - Olaf W. Morawski
- Institute of Physics
- Polish Academy of Sciences
- 02-668 Warsaw
- Poland
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