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One-pot synthesis of difluoromethyl-containing 1,2,3,4-tetrahydropyridines. J Fluor Chem 2023. [DOI: 10.1016/j.jfluchem.2023.110088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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2
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Valencia J, Sánchez-Velasco OA, Saavedra-Olavarría J, Hermosilla-Ibáñez P, Pérez EG, Insuasty D. N-Arylation of 3-Formylquinolin-2(1 H)-ones Using Copper(II)-Catalyzed Chan-Lam Coupling. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238345. [PMID: 36500438 PMCID: PMC9735505 DOI: 10.3390/molecules27238345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 12/02/2022]
Abstract
3-formyl-2-quinolones have attracted the scientific community's attention because they are used as versatile building blocks in the synthesis of more complex compounds showing different and attractive biological activities. Using copper-catalyzed Chan-Lam coupling, we synthesized 32 new N-aryl-3-formyl-2-quinolone derivatives at 80 °C, in air and using inexpensive phenylboronic acids as arylating agents. 3-formyl-2-quinolones and substituted 3-formyl-2-quinolones can act as substrates, and among the products, the p-methyl derivative 9a was used as a substrate to obtain different derivatives such as alcohol, amine, nitrile, and chalcone.
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Affiliation(s)
- Jhesua Valencia
- Departamento de Química y Biología, División de Ciencias Básicas, Universidad del Norte, Km 5 Vía Puerto Colombia, Barranquilla 081007, Colombia
| | - Oriel A. Sánchez-Velasco
- Department of Organic Chemistry, Faculty of Chemistry and Pharmacy, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Jorge Saavedra-Olavarría
- Department of Organic Chemistry, Faculty of Chemistry and Pharmacy, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Patricio Hermosilla-Ibáñez
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Materials Chemistry Department, Faculty of Chemistry and Biology, University of Santiago, Chile, Santiago 9170022, Chile
| | - Edwin G. Pérez
- Department of Organic Chemistry, Faculty of Chemistry and Pharmacy, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
- Correspondence: (E.G.P.); (D.I.)
| | - Daniel Insuasty
- Departamento de Química y Biología, División de Ciencias Básicas, Universidad del Norte, Km 5 Vía Puerto Colombia, Barranquilla 081007, Colombia
- Correspondence: (E.G.P.); (D.I.)
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Taha MM, Rizk MS, Zayed MA, Abdel-Haleem FM, Barhoum A. Non-Enzymatic Phenylboronic Acid-Based Optode Membrane for Glucose Monitoring in Serums of Diabetic Patients and in the Culture Medium of Human Embryos. SENSORS (BASEL, SWITZERLAND) 2022; 22:7135. [PMID: 36236234 PMCID: PMC9571803 DOI: 10.3390/s22197135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/30/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Monitoring glucose levels is important not only for diabetics, but also for tracking embryonic development in human embryo culture media. In this study, an optochemical sensor (glucose-selective polymer membrane) was fabricated for the determination of glucose in serum from diabetic patients and the culture media of human embryos. The optode membranes were formulated using polyvinyl chloride (PVC) as the polymer matrix and 4',5'-dibromofluorescein octadecyl ester (ETH 7075) as the chromoionophore. The sensitivity of the optode membranes was optimized using two different plasticizers (tricresyl phosphate-TCP and nitrophenyloctyl ether-NOPE) and three ionophores (nitrophenylboronic acid-NPBA, trifluorophenyboronic acid-TFPBA, 4'-nitrobenzo-15-crown-5) and tested for glucose detection. The best optode membrane was formulated from 49.5% PVC, 49.5% TCP, 1% NPBA, and 1% ETH 7075. It showed a linear dynamic range of 10-3 M to 10-1 M, with a detection limit of 9 × 10-4 M and a response time of 2 min. The detection mechanism involves H-bonding between NPBA and glucose, which was confirmed by Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR). The reaction also involves the formation of boronate esters in basic media with deprotonation of the chromoionophore (ETH 7075), leading to a decrease in UV-Vis absorbance at λmax = 530 nm. The membrane optode was used for glucose determination in synthetic culture medium, commercial embryo culture medium (GLOBAL® TOTAL® W/HEPES), and serum from normal and diabetic patients, showing good accuracy and precision of the optode.
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Affiliation(s)
- Mohamed M. Taha
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
- Adam International Hospital, Aden Street Mohandesein Anas Ibn Malek, Giza 12411, Egypt
| | - Mahmoud S. Rizk
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Mohamed A. Zayed
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Fatehy M. Abdel-Haleem
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
- Center for Hazards Mitigation, Environmental Studies and Research (CHMESR), Cairo University, Giza 11795, Egypt
| | - Ahmed Barhoum
- NanoStruc Research Group, Chemistry Department, Faculty of Science, Helwan University, Cairo 11795, Egypt
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, D09 V209 Dublin, Ireland
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4
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Hernández-Negrete O, Sotelo-Mundo RR, Esparza-Ponce HE, Encinas-Romero MA, Hernández-Paredes J. New hydrate cocrystal of l-proline with 4-acetylphenylboronic acid obtained via mechanochemistry and solvent evaporation: An experimental and theoretical study. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Adamczyk-Woźniak A, Sporzyński A. Merging Electron Deficient Boronic Centers with Electron-Withdrawing Fluorine Substituents Results in Unique Properties of Fluorinated Phenylboronic Compounds. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27113427. [PMID: 35684365 PMCID: PMC9182515 DOI: 10.3390/molecules27113427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/20/2022] [Accepted: 05/23/2022] [Indexed: 11/16/2022]
Abstract
Fluorinated boron species are a very important group of organoboron compounds used first of all as receptors of important bioanalytes, as well as biologically active substances, including Tavaborole as an antifungal drug. The presence of substituents containing fluorine atoms increases the acidity of boronic compounds, which is crucial from the point of view of their interactions with analytes or certain pathogen's enzymes. The review discusses the electron acceptor properties of fluorinated boronic species using both the acidity constant (pKa) and acceptor number (AN) in connection with their structural parameters. The NMR spectroscopic data are also presented, with particular emphasis on 19F resonance due to the wide range of information that can be obtained from this technique. Equilibria in solutions, such as the dehydration of boronic acid to form boroxines and their esterification or cyclization with the formation of 3-hydroxyl benzoxaboroles, are discussed. The results of the latest research on the biological activity of boronic compounds by experimental in vitro methods and theoretical calculations using docking studies are also discussed.
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Affiliation(s)
- Agnieszka Adamczyk-Woźniak
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
- Correspondence: (A.A.-W.); (A.S.); Tel.: +48-22-2345737 (A.A.-W.)
| | - Andrzej Sporzyński
- Faculty of Agriculture and Forestry, University of Warmia and Mazury, Oczapowskiego 2, 10-719 Olsztyn, Poland
- Correspondence: (A.A.-W.); (A.S.); Tel.: +48-22-2345737 (A.A.-W.)
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6
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Equilibria in the 3-(trifluoromethyl)phenylboronic acid - boroxine system. Solubility of the acid and its cyclic esters in organic solvents. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121947] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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7
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Sánchez-Velasco OA, Saavedra-Olavarría J, Araya-Santelices DAA, Hermosilla-Ibáñez P, Cassels BK, Pérez EG. Synthesis of N-Arylcytisine Derivatives Using the Copper-Catalyzed Chan-Lam Coupling. JOURNAL OF NATURAL PRODUCTS 2021; 84:1985-1992. [PMID: 34213336 DOI: 10.1021/acs.jnatprod.1c00275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
N-Arylcytisine derivatives are quite rare. We report here a practical methodology to obtain these compounds. Using the copper-catalyzed Chan-Lam coupling, we synthesized new N-arylcytisine derivatives at room temperature, in air and using inexpensive phenylboronic acids. Cytisine and 3,5-dihalocytisines can act as substrates, and among the products, the p-Br-derivative 2r was used as a substrate to obtain biaryl derivatives under Pd-coupling conditions; ester 2j was converted into its acid and amide derivatives using classical carbodiimide conditions. This shows that the Chan-Lam cross-coupling reaction can be included as a versatile synthetic tool in the derivatization of natural products.
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Affiliation(s)
- Oriel A Sánchez-Velasco
- Department of Organic Chemistry, Faculty of Chemistry and Pharmacy, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | | | - Daniel A A Araya-Santelices
- Department of Organic Chemistry, Faculty of Chemistry and Pharmacy, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Patricio Hermosilla-Ibáñez
- Materials Chemistry Department, Faculty of Chemistry and Biology, University of Santiago de Chile (USACh), Santiago 9170022, Chile
- Center for the Development of Nanoscience and Nanotechnology, CEDENNA, Santiago 9170022, Chile
| | - Bruce K Cassels
- Department of Chemistry, Faculty of Sciences, University of Chile, Santiago 7800003, Chile
| | - Edwin G Pérez
- Department of Organic Chemistry, Faculty of Chemistry and Pharmacy, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
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Adamczyk-Woźniak A, Gozdalik JT, Kaczorowska E, Durka K, Wieczorek D, Zarzeczańska D, Sporzyński A. (Trifluoromethoxy)Phenylboronic Acids: Structures, Properties, and Antibacterial Activity. Molecules 2021; 26:molecules26072007. [PMID: 33916124 PMCID: PMC8036725 DOI: 10.3390/molecules26072007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 03/24/2021] [Accepted: 03/27/2021] [Indexed: 12/20/2022] Open
Abstract
Three isomers of (trifluoromethoxy)phenylboronic acids were studied in the context of their physicochemical, structural, antimicrobial and spectroscopic properties. They were characterized by 1H, 13C, 11B and 19F NMR spectroscopy. The acidity of all the isomers was evaluated by both spectrophotometric and potentiometric titrations. The introduction of the -OCF3 group influences the acidity, depending, however, on the position of a substituent, with the ortho isomer being the least acidic. Molecular and crystal structures of ortho and para isomers were determined by the single crystal XRD method. Hydrogen bonded dimers are the basic structural motives of the investigated molecules in the solid state. In the case of the ortho isomer, intramolecular hydrogen bond with the -OCF3 group is additionally formed, weaker, however, than that in the analogous -OCH3 derivative, which has been determined by both X-Ray measurements as well as theoretical DFT calculations. Docking studies showed possible interactions of the investigated compounds with LeuRS of Escherichia coli. Finally, the antibacterial potency of studied boronic acids in vitro were evaluated against Escherichia coli and Bacillus cereus.
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Affiliation(s)
- Agnieszka Adamczyk-Woźniak
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (J.T.G.); (E.K.); (K.D.)
- Correspondence:
| | - Jan T. Gozdalik
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (J.T.G.); (E.K.); (K.D.)
| | - Ewa Kaczorowska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (J.T.G.); (E.K.); (K.D.)
| | - Krzysztof Durka
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (J.T.G.); (E.K.); (K.D.)
| | - Dorota Wieczorek
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland;
| | - Dorota Zarzeczańska
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland;
| | - Andrzej Sporzyński
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (J.T.G.); (E.K.); (K.D.)
- Faculty of Agriculture and Forestry, University of Warmia and Mazury, Oczapowskiego 8, 10-719 Olsztyn, Poland;
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Zhao J, Chen J, Xu Q, Li H. Synthesis of Benzoxaboroles by ortho-Oxalkylation of Arylboronic Acids with Aldehydes/Ketones in the Presence of Brønsted Acids. Org Lett 2021; 23:1986-1990. [PMID: 33646001 DOI: 10.1021/acs.orglett.1c00032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein we describe a simple and efficient synthesis of benzoxaboroles from arylboronic acids and aldehydes or ketones in the presence of a Brønsted acid. This method greatly simplifies the starting materials and reduces the number of reaction steps. The reaction can also be accomplished with acetals and ketals. The reaction has a wide substrate scope and high practicability.
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Affiliation(s)
- Jing Zhao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Jiuxi Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Qing Xu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Huan Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
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10
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Adonin NY, Bardin VV. Polyfluorinated arylboranes as catalysts in organic synthesis. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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11
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5-Trifluoromethyl-2-formylphenylboronic Acid. Molecules 2020; 25:molecules25040799. [PMID: 32059517 PMCID: PMC7070739 DOI: 10.3390/molecules25040799] [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: 12/03/2019] [Revised: 02/05/2020] [Accepted: 02/06/2020] [Indexed: 02/05/2023] Open
Abstract
2-Formylphenylboronic acids display many interesting features, not only from synthetic but also from an application as well as structural points of view. 5-Trifluoromethyl-2-formyl phenylboronic acid has been synthesized and characterized in terms of its structure and properties. The presence of an electron-withdrawing substituent results in a considerable rise in the acidity in comparison with its analogues. In some solutions, the title compound isomerizes with formation of the corresponding 3-hydroxybenzoxaborole. Taking into account the probable mechanism of antifungal action of benzoxaboroles, which blocks the cytoplasmic leucyl-tRNA synthetase (LeuRS) of the microorganism, docking studies with the active site of the enzymes have been carried out. It showed possible binding of the cyclic isomer into the binding pocket of Candida albicans LeuRS, similar to that of the recently approved benzoxaborole antifungal drug (AN2690, Tavaborole, Kerydin). In case of Escherichia coli LeuRS, the opened isomer displays a much higher inhibition constant in comparison with the cyclic one. The antimicrobial activity of the title compound was also investigated in vitro, showing moderate action against Candida albicans. The compound reveals higher activity against Aspergillus niger as well as bacteria such as Escherichia coli and Bacillus cereus. In case of Bacillus cereus, the determined Minimum Inhibitory Concentration (MIC) value is lower than that of AN2690 (Tavaborole). The results confirm potential of 2-formylphenylboronic acids as antibacterial agents and give a hint of their possible mechanism of action.
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Borys KM, Wieczorek D, Pecura K, Lipok J, Adamczyk-Woźniak A. Antifungal activity and tautomeric cyclization equilibria of formylphenylboronic acids. Bioorg Chem 2019; 91:103081. [PMID: 31445482 DOI: 10.1016/j.bioorg.2019.103081] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/30/2019] [Accepted: 06/19/2019] [Indexed: 12/20/2022]
Abstract
2-Formylphenylboronic acid and four isomeric fluoro-2-formylphenylboronic acids have been found active against a series of fungal strains: Aspergillus, Fusarium, Penicillium and Candida. The level of antifungal activity was evaluated by agar diffusion tests as well as the determination of minimum inhibitory concentrations (MICs) by serial dilution method. Among the tested compounds, 4-fluoro-2-formylphenylboronic acid - an analogue of the known antifungal drug Tavaborole (AN2690) - proved to be the most potent antifungal agent. The tautomeric equilibrium leading to the formation of 3-hydroxybenzoxaboroles as well as the position of the fluorine substituent were revealed to play a crucial role in the observed activity.
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Affiliation(s)
- Krzysztof M Borys
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Dorota Wieczorek
- Faculty of Chemistry, Opole University, Oleska 48, 45-052 Opole, Poland
| | - Kamila Pecura
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Jacek Lipok
- Faculty of Chemistry, Opole University, Oleska 48, 45-052 Opole, Poland
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Gozdalik JT, Marek PH, Madura ID, Gierczyk B, Popenda Ł, Schroeder G, Adamczyk-Woźniak A, Sporzyński A. Structures and properties of trifluoromethylphenylboronic acids. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.090] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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14
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St-Jean F, Piechowicz KA, Sirois LE, Angelaud R, Gosselin F. Study of a Competing Hydrodefluorination Reaction During the Directed ortho-Lithiation/Borylation of 2-Fluorobenzaldehyde. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Frédéric St-Jean
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Katarzyna A. Piechowicz
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Lauren E. Sirois
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Rémy Angelaud
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Francis Gosselin
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
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