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Qunies AM, Spitznagel BD, Du Y, Peprah PK, Mohamed YK, Weaver CD, Emmitte KA. Structure-Activity Relationship Studies in a Series of Xanthine Inhibitors of SLACK Potassium Channels. Molecules 2024; 29:2437. [PMID: 38893312 PMCID: PMC11173529 DOI: 10.3390/molecules29112437] [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: 04/30/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
Gain-of-function mutations in the KCNT1 gene, which encodes the sodium-activated potassium channel known as SLACK, are associated with the rare but devastating developmental and epileptic encephalopathy known as epilepsy of infancy with migrating focal seizures (EIMFS). The design of small molecule inhibitors of SLACK channels represents a potential therapeutic approach to the treatment of EIMFS, other childhood epilepsies, and developmental disorders. Herein, we describe a hit optimization effort centered on a xanthine SLACK inhibitor (8) discovered via a high-throughput screen. Across three distinct regions of the chemotype, we synthesized 58 new analogs and tested each one in a whole-cell automated patch-clamp assay to develop structure-activity relationships for inhibition of SLACK channels. We further evaluated selected analogs for their selectivity versus a variety of other ion channels and for their activity versus clinically relevant SLACK mutants. Selectivity within the series was quite good, including versus hERG. Analog 80 (VU0948578) was a potent inhibitor of WT, A934T, and G288S SLACK, with IC50 values between 0.59 and 0.71 µM across these variants. VU0948578 represents a useful in vitro tool compound from a chemotype that is distinct from previously reported small molecule inhibitors of SLACK channels.
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Affiliation(s)
- Alshaima’a M. Qunies
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
- School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | | | - Yu Du
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA
- Vanderbilt Institute for Chemical Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Paul K. Peprah
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
- School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Yasmeen K. Mohamed
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - C. David Weaver
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA
- Vanderbilt Institute for Chemical Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Kyle A. Emmitte
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
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2
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Hou YJ, Zhao L, Chai GL, Zhong K, Chang J. Highly Enantioselective Chiral Diol-Catalyzed Conjugate Addition of Boronic Acids to α,β-Unsaturated Trifluoromethyl Ketones. J Org Chem 2023. [PMID: 38006355 DOI: 10.1021/acs.joc.3c02281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2023]
Abstract
The (R)-3,3'-(3,5-(CF3)2-C6H3)2-BINOL-catalyzed enantioselective conjugate addition of organic boronic acids to α,β-unsaturated 1,1,1-trifluoromethyl ketones affords corresponding addition products bearing a stereogenic center at the β-position in moderate to high yields and excellent enantioselectivities (up to 99% ee), without any 1,2-addition product formation. Moreover, this catalytic protocol features mild reaction conditions, a broad substrate scope, suitability for alkenylboronic acids and (hetero)arylboronic acids, and easy scale-up.
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Affiliation(s)
- Ya-Jing Hou
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Lu Zhao
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Guo-Li Chai
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Kangbao Zhong
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Junbiao Chang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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3
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Bossuat M, Rullière P, Preuilh N, Peixoto A, Joly E, Gomez JG, Bourkhis M, Rodriguez F, Gonçalves F, Fabing I, Gaspard H, Bernardes-Génisson V, Maraval V, Ballereau S, Chauvin R, Britton S, Génisson Y. Phenyl dialkynylcarbinols, a Bioinspired Series of Synthetic Antitumor Acetylenic Lipids. J Med Chem 2023; 66:13918-13945. [PMID: 37816126 DOI: 10.1021/acs.jmedchem.3c00859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
A series of 25 chiral anti-cancer lipidic alkynylcarbinols (LACs) were devised by introducing an (hetero)aromatic ring between the aliphatic chain and the dialkynylcarbinol warhead. The resulting phenyl-dialkynylcarbinols (PACs) exhibit enhanced stability, while retaining cytotoxicity against HCT116 and U2OS cell lines with IC50 down to 40 nM for resolved eutomers. A clickable probe was used to confirm the PAC prodrug behavior: upon enantiospecific bio-oxidation of the carbinol by the HSD17B11 short-chain dehydrogenase/reductase (SDR), the resulting ynones covalently modify cellular proteins, leading to endoplasmic reticulum stress, ubiquitin-proteasome system inhibition, and apoptosis. Insights into the design of LAC prodrugs specifically bioactivated by HSD17B11 vs its paralogue HSD17B13 were obtained. The HSD17B11/HSD17B13-dependent cytotoxicity of PACs was exploited to develop a cellular assay to identify specific inhibitors of these enzymes. A docking study was performed with the HSD17B11 AlphaFold model, providing a molecular basis of the SDR substrates mimicry by PACs. The safety profile of a representative PAC was established in mice.
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Affiliation(s)
- Margaux Bossuat
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
- LCC-CNRS, Université de Toulouse, CNRS UPR 8241, UPS, F-31077 Toulouse, France
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III─Paul Sabatier (UT3), F-31044 Toulouse, France
| | - Pauline Rullière
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Nadège Preuilh
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III─Paul Sabatier (UT3), F-31044 Toulouse, France
| | - Antonio Peixoto
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III─Paul Sabatier (UT3), F-31044 Toulouse, France
| | - Etienne Joly
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III─Paul Sabatier (UT3), F-31044 Toulouse, France
| | - Jean-Guillaume Gomez
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Maroua Bourkhis
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Frédéric Rodriguez
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Fernanda Gonçalves
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Isabelle Fabing
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Hafida Gaspard
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | | | - Valérie Maraval
- LCC-CNRS, Université de Toulouse, CNRS UPR 8241, UPS, F-31077 Toulouse, France
| | - Stéphanie Ballereau
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Remi Chauvin
- LCC-CNRS, Université de Toulouse, CNRS UPR 8241, UPS, F-31077 Toulouse, France
| | - Sébastien Britton
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III─Paul Sabatier (UT3), F-31044 Toulouse, France
| | - Yves Génisson
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
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4
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Wei X, Wang P, Liu F, Ye X, Xiong D. Drug Discovery Based on Fluorine-Containing Glycomimetics. Molecules 2023; 28:6641. [PMID: 37764416 PMCID: PMC10536126 DOI: 10.3390/molecules28186641] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Glycomimetics, which are synthetic molecules designed to mimic the structures and functions of natural carbohydrates, have been developed to overcome the limitations associated with natural carbohydrates. The fluorination of carbohydrates has emerged as a promising solution to dramatically enhance the metabolic stability, bioavailability, and protein-binding affinity of natural carbohydrates. In this review, the fluorination methods used to prepare the fluorinated carbohydrates, the effects of fluorination on the physical, chemical, and biological characteristics of natural sugars, and the biological activities of fluorinated sugars are presented.
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Affiliation(s)
- Xingxing Wei
- Department of Pharmacy, Changzhi Medical College, No. 161, Jiefang East Street, Changzhi 046012, China
| | - Pengyu Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. No. 38, Beijing 100191, China (F.L.); (X.Y.)
| | - Fen Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. No. 38, Beijing 100191, China (F.L.); (X.Y.)
| | - Xinshan Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. No. 38, Beijing 100191, China (F.L.); (X.Y.)
| | - Decai Xiong
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. No. 38, Beijing 100191, China (F.L.); (X.Y.)
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5
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Zou Z, Chang W, Zhang W, Ni S, Pan Y, Liang Y, Pan D, Wang Y. CuCF3 Mediated Deoxyfluorination of Redox-active Esters. J Fluor Chem 2023. [DOI: 10.1016/j.jfluchem.2023.110114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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6
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Deolka S, Govindarajan R, Vasylevskyi S, Roy MC, Khusnutdinova JR, Khaskin E. Ligand-free nickel catalyzed perfluoroalkylation of arenes and heteroarenes. Chem Sci 2022; 13:12971-12979. [PMID: 36425484 PMCID: PMC9667918 DOI: 10.1039/d2sc03879j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 10/13/2022] [Indexed: 11/07/2023] Open
Abstract
We describe a "ligand-free" Ni-catalyzed perfluoroalkylation of heteroarenes to produce a diverse array of trfiluoromethyl, pentafluoroethyl and heptafluoropropyl adducts. Catalysis proceeds at room temperature via a radical pathway. The catalytic protocol is distinguished by its simplicity, and its wide scope demonstrates the potential in the late-stage functionalization of drug analogues and peptides.
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Affiliation(s)
- Shubham Deolka
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
| | - Ramadoss Govindarajan
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
| | - Serhii Vasylevskyi
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
| | - Michael C Roy
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
| | - Julia R Khusnutdinova
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
| | - Eugene Khaskin
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
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7
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Regioselectivity in inhibition of peptide deformylase from Haemophilus influenzae by 4- vs 5-azaindole hydroxamic acid derivatives: Biochemical, structural and antimicrobial studies. Bioorg Chem 2022; 128:106095. [DOI: 10.1016/j.bioorg.2022.106095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 08/04/2022] [Accepted: 08/09/2022] [Indexed: 11/20/2022]
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8
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Zawadzińska K, Gadocha Z, Pabian K, Wróblewska A, Wielgus E, Jasiński R. The First Examples of [3+2] Cycloadditions with the Participation of ( E)-3,3,3-Tribromo-1-Nitroprop-1-Ene. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15217584. [PMID: 36363174 PMCID: PMC9657535 DOI: 10.3390/ma15217584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/20/2022] [Accepted: 10/26/2022] [Indexed: 05/14/2023]
Abstract
The first examples of [3+2] cycloaddition reactions between 3,3,3-tribromo-1-nitroprop-1-ene (TBMN) were explored on the basis of experimental and theoretical approaches. It was found that reactions involving TBMN and diarylnitrones realized with full regio- and stereoselectivity lead to respective 3,4-cis-4,5-trans-4-nitroisoxazolidines. The regioselecticity and the molecular mechanism of title processes was analyzed on the basis of the advanced DFT computational study.
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Affiliation(s)
- Karolina Zawadzińska
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
| | - Zuzanna Gadocha
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
| | - Kamila Pabian
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
| | - Aneta Wróblewska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Ewelina Wielgus
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Radomir Jasiński
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
- Correspondence:
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9
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FDA-Approved Trifluoromethyl Group-Containing Drugs: A Review of 20 Years. Processes (Basel) 2022. [DOI: 10.3390/pr10102054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
As people around the world regard 2020 as the year of COVID-19, the medical community considers this year to be the second-best year, shared with the year 1996, with respect to the number of drug molecules approved by the US Food and Drug Administration (FDA). Both years, 2020 and 1996, had a record of 53 new drug molecules approved by the FDA. In the year 2020, 53 new chemical entities and 13 biological medicines were approved, including 10 monoclonal antibodies, 2 antibody-drug conjugates, 3 peptides, and 2 oligonucleotides. Among them, most of the compounds were found to have fluorine or fluorine-containing functional groups exhibiting numerous pharmacological activities. Herein, we summarized the trifluoromethyl (TFM, -CF3)-group-containing FDA-approved drugs for the last 20 years. This article specially features and details the previous 20-year literature data, covering CF3-incorporated potential drug molecules, including their syntheses and uses for various diseases and disorders. The review covers the detailed chemistry of 19 FDA-approved drugs in the past 20 years, which contains the TFM group as one of the pharmacophores.
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10
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Wurm KW, Bartz FM, Schulig L, Bodtke A, Bednarski PJ, Link A. Carba Analogues of Flupirtine and Retigabine with Improved Oxidation Resistance and Reduced Risk of Quinoid Metabolite Formation. ChemMedChem 2022; 17:e202200262. [PMID: 35687532 PMCID: PMC9541272 DOI: 10.1002/cmdc.202200262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/07/2022] [Indexed: 01/10/2023]
Abstract
The KV7 potassium channel openers flupirtine and retigabine have been valuable options in the therapy of pain and epilepsy. However, as a result of adverse reactions, both drugs are currently no longer in therapeutic use. The flupirtine‐induced liver injury and the retigabine linked tissue discolouration do not appear related at first glance; nevertheless, both events can be attributed to the triaminoaryl scaffold, which is affected by oxidation leading to elusive reactive quinone diimine or azaquinone diimine metabolites. Since the mechanism of action, i. e. KV7 channel opening, seems not to be involved in toxicity, this study aimed to further develop safer replacements for flupirtine and retigabine. In a ligand‐based design strategy, replacing amino substituents of the triaminoaryl core with alkyl substituents led to carba analogues with improved oxidation resistance and negligible risk of quinoid metabolite formation. In addition to these improved safety features, some of the novel analogues exhibited significantly improved KV7.2/3 channel opening activity, indicated by an up to 13‐fold increase in potency and an efficacy of up to 176 % compared to flupirtine, thus being attractive candidates for further development.
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Affiliation(s)
- Konrad W Wurm
- University of Greifswald: Universitat Greifswald, Institute of Pharmacy, GERMANY
| | - Frieda-Marie Bartz
- University of Greifswald: Universitat Greifswald, Institute of Pharmacy, GERMANY
| | - Lukas Schulig
- University of Greifswald: Universitat Greifswald, Institute of Pharmacy, GERMANY
| | - Anja Bodtke
- University of Greifswald: Universitat Greifswald, Institute of Pharmacy, GERMANY
| | - Patrick J Bednarski
- University of Greifswald: Universitat Greifswald, Institute of Pharmacy, GERMANY
| | - Andreas Link
- University of Greifswald, Institute of Pharmacy, F.-L.-Jahn-Str. 17, 17487, Greifswald, GERMANY
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11
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Xie Y, Iwata J, Matsumoto T, Yamada NL, Nemoto F, Seto H, Nishino T. Hydrophobicity of the Pentafluorosulfanyl Group in Side Chains of Polymethacrylates by Evaluation with Surface Free Energy and Neutron Reflectivity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:6472-6480. [PMID: 35544954 DOI: 10.1021/acs.langmuir.2c00690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A hydrophobic surface or coating is required for surface protection, anti-fouling, adhesion, and other applications. For the achievements of hydrophobic properties, fluorine-based coatings, such as the introduction of trifluoromethyl or difluoromethylene groups, are conventionally employed. Recent developments in synthetic chemistry have indicated other organic fluoroalkyl groups that are suitable for achieving a more hydrophobic surface. In this study, we focused on the hydrophobic properties of the pentafluorosulfanyl (-SF5) group. We synthesized polymethacrylates with -SF5 groups or other functional groups (-CF3, -CH3, and -H) in their side chains and evaluated their hydrophobicity based on contact angles of water and ethylene glycol and the affinities of their films to water through neutron reflectivity measurements to demonstrate the superior hydrophobic properties of the -SF5 group. The water contact angle on the polymethacrylate film with -SF5 groups was larger, which suggested that the surface free energy was lower than that of the other polymethacrylate thin films with pendant side chains of -CF3, -CH3, and -H. In addition, the fitting analyses of the neutron reflectivity profiles of the thin polymer films in contact with air and water revealed the lowest affinity between water and the surface of polymethacrylate films with -SF5 groups among the films of the synthesized polymers. Thus, we demonstrated the potential of pentafluorosulfanyl groups as advanced hydrophobic groups.
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Affiliation(s)
- Yijun Xie
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe 657-8501, Japan
| | - Jun Iwata
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe 657-8501, Japan
| | - Takuya Matsumoto
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe 657-8501, Japan
| | - Norifumi L Yamada
- Institute of Materials Structure Science, High Energy Accelerator Research Organization, 203-1 Shirakata, Tokai 319-1106, Ibaraki, Japan
| | - Fumiya Nemoto
- Institute of Materials Structure Science, High Energy Accelerator Research Organization, 203-1 Shirakata, Tokai 319-1106, Ibaraki, Japan
- Department of Materials Science and Engineering, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka 239-8686, Kanagawa, Japan
| | - Hideki Seto
- Institute of Materials Structure Science, High Energy Accelerator Research Organization, 203-1 Shirakata, Tokai 319-1106, Ibaraki, Japan
| | - Takashi Nishino
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe 657-8501, Japan
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12
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Roy TK, Mani D, Schwaab G, Havenith M. An infrared spectroscopic study of trifluoromethoxybenzene⋯methanol complexes formed in superfluid helium nanodroplets. Phys Chem Chem Phys 2021; 23:25180-25187. [PMID: 34730133 DOI: 10.1039/d1cp03136h] [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
We have studied the intermolecular complex formation between trifluoromethoxybenzene and methanol (CD3OD) in superfluid helium droplets by infrared spectroscopy in the spectral range of 2630-2730 cm-1, covering the O-D stretches of methanol-d4 (CD3OD). The cluster size associated with the observed bands is deduced from the variation of infrared intensity of a particular band with the partial pressures of trifluoromethoxybenzene and methanol. Quantum chemical calculations are performed at the MP2/6-311++G(d,p) level of theory to complement the experimental results. As a result, we have identified six different conformers of the trifluoromethoxybenzene⋯methanol intermolecular complex: three bound via O-H⋯O hydrogen bonds and the other three via O-H⋯π hydrogen bonds. Furthermore, to access the effect of fluorination on the methyl unit of anisole molecules, we compare the IR spectrum of trifluoromethoxybenzene (C6H5OCF3)⋯methanol with our earlier reported spectrum of anisole (C6H5OCH3)⋯methanol.
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Affiliation(s)
- Tarun Kumar Roy
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum, Bochum 44780, Germany.
| | - Devendra Mani
- Department of Chemistry, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India.
| | - Gerhard Schwaab
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum, Bochum 44780, Germany.
| | - Martina Havenith
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum, Bochum 44780, Germany.
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13
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Petropavlovskikh DA, Vorobyeva DV, Godovikov IA, Nefedov SE, Filippov OA, Osipov SN. Lossen rearrangement by Rh(III)-catalyzed C-H activation/annulation of aryl hydroxamates with alkynes: access to quinolone-containing amino acid derivatives. Org Biomol Chem 2021; 19:9421-9426. [PMID: 34668894 DOI: 10.1039/d1ob01711j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A convenient and robust method for the preparation of new CF3-containing 2-quinolones has been developed via a Rh(III)-catalyzed C-H activation/Lossen rearrangement/annulation cascade of N-pivaloyloxy-arylamides with internal alkynes bearing an α-CF3-α-amino acid moiety on the triple bond. This work expands the scope of valuable products that are available through C-H activation/annulation reactions of arylamides in organic synthesis.
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Affiliation(s)
- Dmitry A Petropavlovskikh
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov str. 28, 119991 Moscow, Russia.
| | - Daria V Vorobyeva
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov str. 28, 119991 Moscow, Russia.
| | - Ivan A Godovikov
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov str. 28, 119991 Moscow, Russia.
| | - Sergey E Nefedov
- N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, 119991, Moscow, Russia
| | - Oleg A Filippov
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov str. 28, 119991 Moscow, Russia.
| | - Sergey N Osipov
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov str. 28, 119991 Moscow, Russia.
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14
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Laleu B, Akao Y, Ochida A, Duffy S, Lucantoni L, Shackleford DM, Chen G, Katneni K, Chiu FCK, White KL, Chen X, Sturm A, Dechering KJ, Crespo B, Sanz LM, Wang B, Wittlin S, Charman SA, Avery VM, Cho N, Kamaura M. Discovery and Structure-Activity Relationships of Quinazolinone-2-carboxamide Derivatives as Novel Orally Efficacious Antimalarials. J Med Chem 2021; 64:12582-12602. [PMID: 34437804 DOI: 10.1021/acs.jmedchem.1c00441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A phenotypic high-throughput screen allowed discovery of quinazolinone-2-carboxamide derivatives as a novel antimalarial scaffold. Structure-activity relationship studies led to identification of a potent inhibitor 19f, 95-fold more potent than the original hit compound, active against laboratory-resistant strains of malaria. Profiling of 19f suggested a fast in vitro killing profile. In vivo activity in a murine model of human malaria in a dose-dependent manner constitutes a concomitant benefit.
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Affiliation(s)
- Benoît Laleu
- Medicines for Malaria Venture, ICC, Route de Pré-Bois 20, 1215 Geneva, Switzerland
| | - Yuichiro Akao
- Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Atsuko Ochida
- Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Sandra Duffy
- Discovery Biology, Griffith University, Brisbane Innovation Park, Don Young Road, Nathan 4111, Queensland, Australia
| | - Leonardo Lucantoni
- Discovery Biology, Griffith University, Brisbane Innovation Park, Don Young Road, Nathan 4111, Queensland, Australia
| | - David M Shackleford
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Gong Chen
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Kasiram Katneni
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Francis C K Chiu
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Karen L White
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Xue Chen
- WuXi AppTec (Wuhan) Company Ltd., 666 Gaoxin Avenue, Donghu New Technology Development Area, Wuhan 430075, China
| | - Angelika Sturm
- TropIQ Health Sciences, Transistorweg 5-C02, 6534 AT Nijmegen, The Netherlands
| | - Koen J Dechering
- TropIQ Health Sciences, Transistorweg 5-C02, 6534 AT Nijmegen, The Netherlands
| | - Benigno Crespo
- Global Health, GlaxoSmithKline R&D, Tres Cantos, 28760, Madrid, Spain
| | - Laura M Sanz
- Global Health, GlaxoSmithKline R&D, Tres Cantos, 28760, Madrid, Spain
| | - Binglin Wang
- WuXi AppTec (Wuhan) Company Ltd., 666 Gaoxin Avenue, Donghu New Technology Development Area, Wuhan 430075, China
| | - Sergio Wittlin
- Swiss Tropical and Public Health Institute, Socinstrasse 57, 4002 Basel, Switzerland.,University of Basel, 4002 Basel, Switzerland
| | - Susan A Charman
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Vicky M Avery
- Discovery Biology, Griffith University, Brisbane Innovation Park, Don Young Road, Nathan 4111, Queensland, Australia
| | - Nobuo Cho
- Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Masahiro Kamaura
- Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
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15
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Meyer S, Häfliger J, Gilmour R. Expanding organofluorine chemical space: the design of chiral fluorinated isosteres enabled by I(i)/I(iii) catalysis. Chem Sci 2021; 12:10686-10695. [PMID: 34476053 PMCID: PMC8372324 DOI: 10.1039/d1sc02880d] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 06/28/2021] [Indexed: 12/12/2022] Open
Abstract
Short aliphatic groups are prevalent in bioactive small molecules and play an essential role in regulating physicochemistry and molecular recognition phenomena. Delineating their biological origins and significance have resulted in landmark developments in synthetic organic chemistry: Arigoni's venerable synthesis of the chiral methyl group is a personal favourite. Whilst radioisotopes allow the steric footprint of the native group to be preserved, this strategy was never intended for therapeutic chemotype development. In contrast, leveraging H → F bioisosterism provides scope to complement the chiral, radioactive bioisostere portfolio and to reach unexplored areas of chiral chemical space for small molecule drug discovery. Accelerated by advances in I(i)/I(iii) catalysis, the current arsenal of achiral 2D and 3D drug discovery modules is rapidly expanding to include chiral units with unprecedented topologies and van der Waals volumes. This Perspective surveys key developments in the design and synthesis of short multivicinal fluoroalkanes under the auspices of main group catalysis paradigms.
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Affiliation(s)
- Stephanie Meyer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Correnstraße 36 48149 Münster Germany
| | - Joel Häfliger
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Correnstraße 36 48149 Münster Germany
| | - Ryan Gilmour
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Correnstraße 36 48149 Münster Germany
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16
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Kubo O, Takami K, Kamaura M, Watanabe K, Miyashita H, Abe S, Matsuda K, Tsujihata Y, Odani T, Iwasaki S, Kitazaki T, Murata T, Sato K. Discovery of a novel series of GPR119 agonists: Design, synthesis, and biological evaluation of N-(Piperidin-4-yl)-N-(trifluoromethyl)pyrimidin-4-amine derivatives. Bioorg Med Chem 2021; 41:116208. [PMID: 34010766 DOI: 10.1016/j.bmc.2021.116208] [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: 03/16/2021] [Revised: 04/27/2021] [Accepted: 05/04/2021] [Indexed: 11/28/2022]
Abstract
We undertook an optimization effort involving propan-2-yl 4-({6-[5-(methanesulfonyl)-2,3-dihydro-1H-indol-1-yl]pyrimidin-4-yl}oxy)piperidine-1-carboxylate 1, which we had previously discovered as a novel G protein-coupled receptor 119 (GPR119) agonist. To occupy a presumed hydrophobic space between the pyrimidine and piperidine rings in interaction with GPR119, we replaced the linker oxygen with nitrogen. Subsequently, the introduction of a substituent at the bridging nitrogen atom was explored. We found that the installation of N-trifluoromethyl group 10 not only enhanced GPR119 agonist activity but also considerably improved the human ether-à-go-go-related gene (hERG) inhibition profile. These improvements were not observed for non-fluorinated substituents, such as ethyl analog 8b. The next optimization effort focused on the exploration of a new surrogate structure for the indoline ring and the isosteric replacements of the piperidine N-Boc group to improve solubility, metabolic stability, and oral bioavailability. As a result, N-{1-[3-(2-fluoropropan-2-yl)-1,2,4-oxadiazol-5-yl]piperidin-4-yl}-6-{[1-(methanesulfonyl)piperidin-4-yl]oxy}-N-(trifluoromethyl)pyrimidin-4-amine (27) was identified as a potent and orally bioavailable GPR119 agonist. This compound augmented insulin secretion and effectively lowered plasma glucose excursion in a diabetic animal model after oral administration. In this study, we discuss the designs, syntheses, and biological activities of a novel series of N-(piperidin-4-yl)-N-(trifluoromethyl)pyrimidin-4-amine derivatives as GPR119 agonists, and to determine the distinctive effect of the N-trifluoromethyl group on hERG inhibition, we also discuss the conformational preference of representative compounds.
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Affiliation(s)
- Osamu Kubo
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan.
| | - Kazuaki Takami
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Masahiro Kamaura
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Koji Watanabe
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Hirohisa Miyashita
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Shinichi Abe
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Kae Matsuda
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yoshiyuki Tsujihata
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Tomoyuki Odani
- Biomolecular Research Laboratories, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Shinji Iwasaki
- DMPK Research Laboratories, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Tomoyuki Kitazaki
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Toshiki Murata
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Kenjiro Sato
- Cardiovascular & Metabolic Drug Discovery Unit, Takeda Pharmaceutical Company Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
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17
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Richardson P. Applications of fluorine to the construction of bioisosteric elements for the purposes of novel drug discovery. Expert Opin Drug Discov 2021; 16:1261-1286. [PMID: 34074189 DOI: 10.1080/17460441.2021.1933427] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction There continues to be an exponential rise in the number of small molecule drugs that contain either a fluorine atom or a fluorinated fragment. While the unique properties of fluorine enable the precise modulation of a molecule's physicochemical properties, strategic bioisosteric replacement of fragments with fluorinated moieties represents an area of significant growth.Areas covered This review discusses the strategic employment of fluorine substitution in the design and development of bioisosteres in medicinal chemistry. In addition, the classic exploitation of trifluoroethylamine group as an amide bioisostere is discussed. In each of the case studies presented, emphasis is placed on the context-dependent influence of the fluorinated fragment on the overall properties/binding of the compound of interest.Expert opinion Whereas utilization of bioisosteric replacements to modify molecular structures is commonplace within drug discovery, the overarching lesson to be learned is that the chances of success with this strategy significantly increase as the knowledge of the structure/environment of the biological target grows. Coupled to this, breakthroughs and learnings achieved using bioisosteres within a specific program are context-based, and though may be helpful in guiding future intuition, will not necessarily be directly translated to future programs. Another important point is to bear in mind what implications a structural change based on a bioisosteric replacement will have on the candidate molecule. Finally, the development of new methods and reagents for the controlled regioselective introduction of fluorine and fluorinated moieties into biologically relevant compounds particularly in drug discovery remains a contemporary challenge in organic chemistry.
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18
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Prosser KE, Kohlbrand AJ, Seo H, Kalaj M, Cohen SM. 19F-Tagged metal binding pharmacophores for NMR screening of metalloenzymes. Chem Commun (Camb) 2021; 57:4934-4937. [PMID: 33870988 PMCID: PMC8137660 DOI: 10.1039/d1cc01231b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study demonstrates the screening of a collection of twelve 19F-tagged metal-binding pharmacophores (MBPs) against the Zn(ii)-dependent metalloenzyme human carbonic anhydrase II (hCAII) by 19F NMR. The isomorphous replacement of Zn(ii) by Co(ii) in hCAII produces enhanced sensitivity and reveals the potential of 19F NMR-based techniques for metalloenzyme ligand discovery.
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Affiliation(s)
- Kathleen E Prosser
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
| | - Alysia J Kohlbrand
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
| | - Hyeonglim Seo
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
| | - Mark Kalaj
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
| | - Seth M Cohen
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
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19
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Min Y, Sheng J, Yu J, Ni S, Ma G, Gong H, Wang X. Diverse Synthesis of Chiral Trifluoromethylated Alkanes via Nickel‐Catalyzed Asymmetric Reductive Cross‐Coupling Fluoroalkylation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101076] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yue Min
- School of Materials Science and Engineering Center for Supramolecular Chemistry and Catalysis Department of Chemistry Shanghai University Shanghai 200444 China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Jian‐Liang Yu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Shan‐Xiu Ni
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Guobin Ma
- School of Materials Science and Engineering Center for Supramolecular Chemistry and Catalysis Department of Chemistry Shanghai University Shanghai 200444 China
| | - Hegui Gong
- School of Materials Science and Engineering Center for Supramolecular Chemistry and Catalysis Department of Chemistry Shanghai University Shanghai 200444 China
| | - Xi‐Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
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20
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Min Y, Sheng J, Yu JL, Ni SX, Ma G, Gong H, Wang XS. Diverse Synthesis of Chiral Trifluoromethylated Alkanes via Nickel-Catalyzed Asymmetric Reductive Cross-Coupling Fluoroalkylation. Angew Chem Int Ed Engl 2021; 60:9947-9952. [PMID: 33569847 DOI: 10.1002/anie.202101076] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 02/06/2021] [Indexed: 11/06/2022]
Abstract
The trifluoromethyl group represents one of the most functional and widely used fluoroalkyl groups in drug design and screening, while the drug candidates containing chiral trifluoromethyl-bearing carbons are still few due to the lack of efficient methods for the asymmetric introduction of trifluoromethyl group into organic molecules. Herein, we described a nickel-catalyzed asymmetric trifluoroalkylation of aryl iodides, for the first time, by utilizing reductive cross-coupling in enantioselective fluoroalkylation. This novel method has demonstrated high efficiency, mild conditions, and excellent functional group tolerance, especially for substrates containing diverse pharmaceutical and bioactive molecules moieties. This strategy provided an efficient and facile way for diversity-oriented synthesis of chiral trifluoromethylated alkanes.
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Affiliation(s)
- Yue Min
- School of Materials Science and Engineering, Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, Shanghai, 200444, China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Jian-Liang Yu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Shan-Xiu Ni
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Guobin Ma
- School of Materials Science and Engineering, Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, Shanghai, 200444, China
| | - Hegui Gong
- School of Materials Science and Engineering, Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, Shanghai, 200444, China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
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21
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Meyer S, Häfliger J, Schäfer M, Molloy JJ, Daniliuc CG, Gilmour R. A Chiral Pentafluorinated Isopropyl Group via Iodine(I)/(III) Catalysis. Angew Chem Int Ed Engl 2021; 60:6430-6434. [PMID: 33427355 PMCID: PMC7986799 DOI: 10.1002/anie.202015946] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/08/2021] [Indexed: 12/15/2022]
Abstract
An I(I)/(III) catalysis strategy to construct an enantioenriched fluorinated isostere of the i Pr group is reported. The difluorination of readily accessible α-CF3 -styrenes is enabled by the in situ generation of a chiral ArIF2 species to forge a stereocentre with the substituents F, CH2 F and CF3 (up to 95 %, >20:1 vicinal:geminal difluorination). The replacement of the metabolically labile benzylic proton results in a highly preorganised scaffold as was determined by X-ray crystallography (π→σ* and stereoelectronic gauche σ→σ* interactions). A process of catalyst editing is disclosed in which preliminary validation of enantioselectivity is placed on a structural foundation.
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Affiliation(s)
- Stephanie Meyer
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
| | - Joel Häfliger
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
| | - Michael Schäfer
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
| | - John J. Molloy
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
| | - Constantin G. Daniliuc
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
| | - Ryan Gilmour
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
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22
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Meyer S, Häfliger J, Schäfer M, Molloy JJ, Daniliuc CG, Gilmour R. Eine chirale pentafluorierte Isopropylgruppe durch Iod(I)/(III)‐Katalyse. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015946] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Stephanie Meyer
- Organisch Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Deutschland
| | - Joel Häfliger
- Organisch Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Deutschland
| | - Michael Schäfer
- Organisch Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Deutschland
| | - John J. Molloy
- Organisch Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Deutschland
| | - Constantin G. Daniliuc
- Organisch Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Deutschland
| | - Ryan Gilmour
- Organisch Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Deutschland
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23
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Jiang X, Tang P. Diverse Synthesis of Chiral Trifluoromethylated Alkanes via Nickel- Catalyzed Asymmetric Reductive Cross-Coupling Fluoroalkylation. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202100045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Hevey R. The Role of Fluorine in Glycomimetic Drug Design. Chemistry 2020; 27:2240-2253. [DOI: 10.1002/chem.202003135] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Rachel Hevey
- Department of Pharmaceutical Sciences University of Basel, Pharmazentrum Klingelbergstrasse 50 4056 Basel Switzerland
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25
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Varenikov A, Shapiro E, Gandelman M. Synthesis of Chiral α-CF 3-Substituted Benzhydryls via Cross-Coupling Reaction of Aryltitanates. Org Lett 2020; 22:9386-9391. [PMID: 33210926 DOI: 10.1021/acs.orglett.0c03673] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We describe a highly efficient approach toward α-CF3-substituted benzhydryls thanks to the employment of organotitanium(IV) based nucleophiles. The use of commercially available anesthetic halothane as a cheap fluorinated building block in a sequential one-pot nickel-catalyzed enantioselective cross-coupling reaction of aryl titanates allowed for the synthesis of chiral α-CF3-substituted benzhydryls in good yields and excellent enantioselectivities. Alternatively, α-CF3-benzyl bromides could be employed under similar conditions to obtain the same family of compounds in higher yields and excellent selectivities. A benzhydryl moiety is a common motif in many biologically active compounds, and their enantioenriched fluorinated analogs should be of great interest in the search for novel drugs and agrochemicals.
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Affiliation(s)
- Andrii Varenikov
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Technion City, Haifa 3200008, Israel
| | - Evgeny Shapiro
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Technion City, Haifa 3200008, Israel
| | - Mark Gandelman
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Technion City, Haifa 3200008, Israel
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26
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Fajkis N, Marcinkowska M, Gryzło B, Krupa A, Kolaczkowski M. Study on a Three-Step Rapid Assembly of Zolpidem and Its Fluorinated Analogues Employing Microwave-Assisted Chemistry. Molecules 2020; 25:molecules25143161. [PMID: 32664332 PMCID: PMC7397218 DOI: 10.3390/molecules25143161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 02/06/2023] Open
Abstract
We developed an efficient microwave-assisted three-step synthesis of zolpidem and its fluorinated analogues 1–3. The procedure relays on the utilization of easily accessible and inexpensive starting materials. Our protocol shows superior performance in terms of yield and purity of products, compared to conventional heating systems. Notably, the total time needed for reaction accomplishment is significantly lower comparing to oil bath heating systems. Finally, we have performed a detailed study on the preparation of zolpidem tartrate salt I, and we assessed its particle-sizes using a polarizing microscope. Our goal was to select the appropriate method that generates the acceptable particle-size, since the solid-size directly influences solubility in biological fluids and further bioavailability. We believe that the disclosed procedure will help to produce a lab-scale quantity of zolpidem and its fluorinated derivatives 1–3, as well as zolpidem tartrate salt I, with suitable fine-particle size for further biological experimentation.
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27
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Erdeljac N, Thiehoff C, Jumde RP, Daniliuc CG, Höppner S, Faust A, Hirsch AKH, Gilmour R. Validating the 1,2-Difluoro Motif As a Hybrid Bioisostere of CF3 and Et Using Matrix Metalloproteinases As Structural Probes. J Med Chem 2020; 63:6225-6237. [DOI: 10.1021/acs.jmedchem.0c00648] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nathalie Erdeljac
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Christian Thiehoff
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Ravindra P. Jumde
- Department of Drug Design and Optimization, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) – Helmholtz Centre for Infection Research (HZI), University Campus E8.1, 66123 Saarbrücken, Germany
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Sandra Höppner
- European Institute for Molecular Imaging, Westfälische Wilhelms-Universität Münster, Waldeyerstraße 15, 48149 Münster, Germany
| | - Andreas Faust
- European Institute for Molecular Imaging, Westfälische Wilhelms-Universität Münster, Waldeyerstraße 15, 48149 Münster, Germany
| | - Anna K. H. Hirsch
- Department of Drug Design and Optimization, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) – Helmholtz Centre for Infection Research (HZI), University Campus E8.1, 66123 Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
| | - Ryan Gilmour
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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Upadhyay C, Chaudhary M, De Oliveira RN, Borbas A, Kempaiah P, Singh P, Rathi B. Fluorinated scaffolds for antimalarial drug discovery. Expert Opin Drug Discov 2020; 15:705-718. [PMID: 32202162 DOI: 10.1080/17460441.2020.1740203] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
INTRODUCTION The unique physicochemical properties and chemical diversity of organofluorine compounds have remarkably contributed for their wide utility in the area of pharmaceuticals, materials and agrochemicals. The noteworthy characteristics of fluorine include high electron affinity, lipophilicity and bioavailability, extending the half-life of the drugs. The incorporation of fluorine substituents, particularly trifluoromethyl groups, into organic molecules has led to their high potency against various diseases, including malaria. Hence, organofluorinated molecules offer valuable avenues for the design of new drug candidates against malaria. AREAS COVERED In this review, the authors discuss the importance of fluorine substituents present in the chemical compounds, and their potential applications for antimalarial drug discovery. EXPERT OPINION Fluorinated molecules represent a reliable strategy to develop new antimalarial drugs. Fluorine or fluorinated groups have been identified as a promising precursor, and their presence in approximately twenty-five percent of approved drugs is notable. Selective fluorination of chemical entities has the potential to be applied not only to improve the activity profile against the malaria parasite, but could be extrapolated for favorable pharmacological applications. Hazardous reagents such as HF, F2 and SF4 used for fluorination, are not considered as safe, and therefore, this process remains challenging, particularly for the pharmaceutical industry.
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Affiliation(s)
- Charu Upadhyay
- Department of Chemistry, Miranda House, University of Delhi , Delhi, India
| | - Monika Chaudhary
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College University Enclave, University of Delhi , Delhi, India
| | - Ronaldo N De Oliveira
- Laboratory of Synthesis of Bioactive Compounds, Department of Chemistry, Federal Rural University of Pernambuco , Recife, Brazil
| | - Aniko Borbas
- Department of Pharmaceutical Chemistry, University of Debrecen , Debrecen, Hungary
| | - Prakasha Kempaiah
- Department of Medicine, Loyola University Stritch School of Medicine , Chicago, USA
| | - Poonam Singh
- Department of Chemistry, Miranda House, University of Delhi , Delhi, India
| | - Brijesh Rathi
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College University Enclave, University of Delhi , Delhi, India
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Cellular apoptosis and necrosis as therapeutic targets for novel Eugenol Tosylate Congeners against Candida albicans. Sci Rep 2020; 10:1191. [PMID: 31988394 PMCID: PMC6985109 DOI: 10.1038/s41598-020-58256-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 01/13/2020] [Indexed: 12/19/2022] Open
Abstract
Despite the rise of new Candida species, Candida albicans tops the list with high morbidity and mortality rates. To tackle this problem there is a need to explore new antifungals that could replace or augment the current treatment options. We previously reported that tosylation of eugenol on hydroxyl group resulted in molecules with enhanced antifungal potency. In line with that work, we synthesized new eugenol tosylate congeners (ETC-1–ETC-7) with different substituents on pendent sulfonyl group and tested their susceptibility against different fluconazole susceptible and resistant C. albicans strains. We evaluated physiology and mode of cell death in response to the most active derivatives by analyzing major apoptotic markers in yeast such as phosphatidylserine externalization, DNA fragmentation, mitochondrial depolarization and decrease in cytochrome c oxidase activity. The results demonstrated that all C. albicans strains were variably susceptible to the test compounds with MIC ranging from 0.125–512 µg/ml, and the most active compounds (ETC-5, ETC-6 and ETC-7) actuate apoptosis and necrosis in Candida cells in a dose-dependent manner via metacaspase-dependent pathway. Furthermore haemolytic assay showed low cytotoxicity effect of these ETCs. Overall the results indicated that ETCs exhibit potential antifungal activity against C. albicans by activating apoptotic and necrotic pathways.
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31
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Malig TC, Tan Y, Wisniewski SR, Higman CS, Carrasquillo-Flores R, Ortiz A, Purdum GE, Kolotuchin S, Hein JE. Development of a telescoped synthesis of 4-(1 H)-cyanoimidazole core accelerated by orthogonal reaction monitoring. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00234h] [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
Telescoped synthesis enabled by reaction monitoring.
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Affiliation(s)
- Thomas C. Malig
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Yichen Tan
- Chemical Process Development
- Bristol Myers Squibb Company
- New Brunswick
- USA
| | | | - Carolyn S. Higman
- Chemical Process Development
- Bristol Myers Squibb Company
- New Brunswick
- USA
| | | | - Adrian Ortiz
- Chemical Process Development
- Bristol Myers Squibb Company
- New Brunswick
- USA
| | - Geoffrey E. Purdum
- Chemical Process Development
- Bristol Myers Squibb Company
- New Brunswick
- USA
| | - Sergei Kolotuchin
- Chemical Process Development
- Bristol Myers Squibb Company
- New Brunswick
- USA
| | - Jason E. Hein
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
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32
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Han J, Takeda R, Liu X, Konno H, Abe H, Hiramatsu T, Moriwaki H, Soloshonok VA. Preparative Method for Asymmetric Synthesis of ( S)-2-Amino-4,4,4-trifluorobutanoic Acid. Molecules 2019; 24:E4521. [PMID: 31835583 PMCID: PMC6943542 DOI: 10.3390/molecules24244521] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/06/2019] [Accepted: 12/09/2019] [Indexed: 11/30/2022] Open
Abstract
Enantiomerically pure derivatives of 2-amino-4,4,4-trifluorobutanoic acid are in great demand as bioisostere of leucine moiety in the drug design. Here, we disclose a method specifically developed for large-scale (>150 g) preparation of the target (S)-N-Fmoc-2-amino-4,4,4-trifluorobutanoic acid. The method employs a recyclable chiral auxiliary to form the corresponding Ni(II) complex with glycine Schiff base, which is alkylated with CF3-CH2-I under basic conditions. The resultant alkylated Ni(II) complex is disassembled to reclaim the chiral auxiliary and 2-amino-4,4,4-trifluorobutanoic acid, which is in situ converted to the N-Fmoc derivative. The whole procedure was reproduced several times for consecutive preparation of over 300 g of the target (S)-N-Fmoc-2-amino-4,4,4-trifluorobutanoic acid.
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Affiliation(s)
- Jianlin Han
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; (J.H.); (X.L.)
| | - Ryosuke Takeda
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan; (R.T.); (T.H.)
| | - Xinyi Liu
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; (J.H.); (X.L.)
| | - Hiroyuki Konno
- Department of Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata 992‑8510, Japan;
| | - Hidenori Abe
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan; (R.T.); (T.H.)
| | - Takahiro Hiramatsu
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan; (R.T.); (T.H.)
| | - Hiroki Moriwaki
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan; (R.T.); (T.H.)
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, María Díaz de Haro 3, Plaza Bizkaia, 48013 Bilbao, Spain
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33
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Erdeljac N, Bussmann K, Schöler A, Hansen FK, Gilmour R. Fluorinated Analogues of the Histone Deacetylase Inhibitor Vorinostat (Zolinza): Validation of a Chiral Hybrid Bioisostere, BITE. ACS Med Chem Lett 2019; 10:1336-1340. [PMID: 31531206 DOI: 10.1021/acsmedchemlett.9b00287] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 07/19/2019] [Indexed: 12/11/2022] Open
Abstract
A chiral, hybrid bioisostere of the CF3 and Et groups (BITE) was installed in a series of vorinostat (Zolinza) analogues, and their histone deacetylase (HDAC) inhibitory behavior was studied relative to that of their nonfluorinated counterparts. Several of these compounds containing the 1,2-difluoroethylene unit showed in vitro potency greater than that of the clinically approved drug itself against HDAC1. This trend was found to be general with the BITE-modified HDAC inhibitors performing significantly better than the ethyl derivatives. Installed by the direct, catalytic vicinal difluorination of terminal alkenes using an I(I)/I(III) manifold, this underexplored chiral bioisostere shows potential in drug discovery.
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Affiliation(s)
- Nathalie Erdeljac
- Institute for Organic Chemistry, WWU Münster, Correnstraße 40, 48149 Münster, Germany
| | - Kathrin Bussmann
- Institute for Organic Chemistry, WWU Münster, Correnstraße 40, 48149 Münster, Germany
| | - Andrea Schöler
- Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Medical Faculty, Leipzig University, Brüderstraße 34, 04103 Leipzig, Germany
| | - Finn K. Hansen
- Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Medical Faculty, Leipzig University, Brüderstraße 34, 04103 Leipzig, Germany
| | - Ryan Gilmour
- Institute for Organic Chemistry, WWU Münster, Correnstraße 40, 48149 Münster, Germany
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34
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Sim JH, Park JH, Maity P, Song CE. Access to Chiral GABA Analogues Bearing a Trifluoromethylated All-Carbon Quaternary Stereogenic Center through Water-Promoted Organocatalytic Michael Reactions. Org Lett 2019; 21:6715-6719. [PMID: 31419145 DOI: 10.1021/acs.orglett.9b02320] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Water enables the highly challenging enantioselective Michael addition of sterically congested β-trifluoromethyl-β-aryl- or -alkyl-substituted nitroolefins with dithiomalonates. Under on-water conditions, the reaction rates were remarkably accelerated as a result of enforced hydrophobic interactions between catalysts and reactants. Takemoto-type thiourea catalysts are very effective for this transformation, affording highly enantioenriched Michael adducts that provide simple access to chiral γ-aminobutyric acid (GABA) analogues with a β-trifluoromethylated quaternary stereocenter.
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Affiliation(s)
- Jae Hun Sim
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Jin Hyun Park
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Pintu Maity
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Choong Eui Song
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
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35
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Izquierdo J, Jain AD, Abdulkadir SA, Schiltz GE. Palladium-catalyzed coupling reactions on functionalized 2-trifluoromethyl-4-chromenone scaffolds. Synthesis of highly functionalized trifluoromethyl-heterocycles. SYNTHESIS-STUTTGART 2019; 51:1342-1352. [PMID: 31274934 DOI: 10.1055/s-0037-1610669] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The chromenone core is a ubiquitous group in biologically-active natural products and has been extensively used in organic synthesis. Fluorine derived compounds, including those with a trifluoromethyl group (-CF3), have shown enhanced biological activities in numerous pharmaceuticals compared with their non-fluorinated analogs. We have found that 2-trifluoromethyl chromenones can be readily functionalized in the 8- and 7-positions, providing chromenones cores of high structural complexity which are excellent precursors for numerous trifluoromethyl-heterocycles.
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Affiliation(s)
- Javier Izquierdo
- Center for Molecular Innovation and Drug Discovery, Northwestern University, Evanston, Illinois, USA
| | - Atul D Jain
- Center for Molecular Innovation and Drug Discovery, Northwestern University, Evanston, Illinois, USA
| | - Sarki A Abdulkadir
- Department of Urology, Northwestern University, Chicago, Illinois, USA.,Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
| | - Gary E Schiltz
- Center for Molecular Innovation and Drug Discovery, Northwestern University, Evanston, Illinois, USA.,Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States.,Department of Pharmacology, Northwestern University, Chicago, Illinois, USA
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36
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Politanskaya LV, Selivanova GA, Panteleeva EV, Tretyakov EV, Platonov VE, Nikul’shin PV, Vinogradov AS, Zonov YV, Karpov VM, Mezhenkova TV, Vasilyev AV, Koldobskii AB, Shilova OS, Morozova SM, Burgart YV, Shchegolkov EV, Saloutin VI, Sokolov VB, Aksinenko AY, Nenajdenko VG, Moskalik MY, Astakhova VV, Shainyan BA, Tabolin AA, Ioffe SL, Muzalevskiy VM, Balenkova ES, Shastin AV, Tyutyunov AA, Boiko VE, Igumnov SM, Dilman AD, Adonin NY, Bardin VV, Masoud SM, Vorobyeva DV, Osipov SN, Nosova EV, Lipunova GN, Charushin VN, Prima DO, Makarov AG, Zibarev AV, Trofimov BA, Sobenina LN, Belyaeva KV, Sosnovskikh VY, Obydennov DL, Usachev SA. Organofluorine chemistry: promising growth areas and challenges. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4871] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Erdeljac N, Kehr G, Ahlqvist M, Knerr L, Gilmour R. Exploring physicochemical space via a bioisostere of the trifluoromethyl and ethyl groups (BITE): attenuating lipophilicity in fluorinated analogues of Gilenya® for multiple sclerosis. Chem Commun (Camb) 2018; 54:12002-12005. [PMID: 30221278 DOI: 10.1039/c8cc05643a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The direct, catalytic vicinal difluorination of terminal alkenes via an I(i)/I(iii) manifold was exploited to install a chiral, hybrid bioisostere of the CF3 and Et groups (BITE) in Gilenya®; the first orally available drug for the clinical management of Multiple Sclerosis (MS). This subtle fluorination pattern allows lipophilicity (log D) to be tempered compared to the corresponding CF3 and Et derivatives (CH2CH3 > CH2CF3 > CHFCH2F).
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Affiliation(s)
- Nathalie Erdeljac
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany.
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Masoud SM, Akmalov TR, Palagin KA, Dolgushin FM, Nefedov SE, Osipov SN. Ruthenium-Alkylidene Complexes with Sterically Rigid Fluorinated NHC Ligands. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801116] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Salekh M. Masoud
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
| | - Timur R. Akmalov
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
| | - Konstantin A. Palagin
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
| | - Fedor M. Dolgushin
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
| | - Sergey E. Nefedov
- N. S. Kurnakov Institute of General and Inorganic Chemistry; Russian Academy of Sciences; Leninsky pr. 31 119991 Moscow Russia
| | - Sergey N. Osipov
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
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40
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Miller SA, van Beek B, Hamlin TA, Bickelhaupt FM, Leadbeater NE. A methodology for the photocatalyzed radical trifluoromethylation of indoles: A combined experimental and computational study. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.08.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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41
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Ng V, Kuehne SA, Chan WC. Rational Design and Synthesis of Modified Teixobactin Analogues: In Vitro Antibacterial Activity against Staphylococcus aureus
, Propionibacterium acnes
and Pseudomonas aeruginosa. Chemistry 2018; 24:9136-9147. [DOI: 10.1002/chem.201801423] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Vivian Ng
- School of Pharmacy; Centre for Biomolecular Sciences; University of Nottingham; University Park Nottingham NG7 2RD United Kingdom
| | - Sarah A. Kuehne
- School of Dentistry; Institute for Microbiology and Infection; University of Birmingham; Birmingham B5 7EG United Kingdom
| | - Weng C. Chan
- School of Pharmacy; Centre for Biomolecular Sciences; University of Nottingham; University Park Nottingham NG7 2RD United Kingdom
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42
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Meanwell NA. Fluorine and Fluorinated Motifs in the Design and Application of Bioisosteres for Drug Design. J Med Chem 2018; 61:5822-5880. [PMID: 29400967 DOI: 10.1021/acs.jmedchem.7b01788] [Citation(s) in RCA: 1298] [Impact Index Per Article: 216.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The electronic properties and relatively small size of fluorine endow it with considerable versatility as a bioisostere and it has found application as a substitute for lone pairs of electrons, the hydrogen atom, and the methyl group while also acting as a functional mimetic of the carbonyl, carbinol, and nitrile moieties. In this context, fluorine substitution can influence the potency, conformation, metabolism, membrane permeability, and P-gp recognition of a molecule and temper inhibition of the hERG channel by basic amines. However, as a consequence of the unique properties of fluorine, it features prominently in the design of higher order structural metaphors that are more esoteric in their conception and which reflect a more sophisticated molecular construction that broadens biological mimesis. In this Perspective, applications of fluorine in the construction of bioisosteric elements designed to enhance the in vitro and in vivo properties of a molecule are summarized.
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Affiliation(s)
- Nicholas A Meanwell
- Discovery Chemistry and Molecular Technologies Bristol-Myers Squibb Research and Development P.O. Box 4000, Princeton , New Jersey 08543-4000 , United States
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43
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Novel olefin metathetis catalysts with fluorinated N-alkyl-N´-arylimidazolin-2-ylidene ligands. Russ Chem Bull 2017. [DOI: 10.1007/s11172-017-1930-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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44
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Luo Z, Yue X, Yang H, Liu H, Klein RS, Tu Z. Design and synthesis of pyrazolopyridine derivatives as sphingosine 1-phosphate receptor 2 ligands. Bioorg Med Chem Lett 2017; 28:488-496. [PMID: 29249563 DOI: 10.1016/j.bmcl.2017.12.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 01/06/2023]
Abstract
Eleven new sphingosine 1-phosphate receptor 2 (S1PR2) ligands were synthesized by modifying lead compound N-(2,6-dichloropyridin-4-yl)-2-(4-isopropyl-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridin-6-yl)hydrazine-1-carboxamide (JTE-013) and their binding affinities toward S1PRs were determined in vitro using [32P]S1P and cell membranes expressing recombinant human S1PRs. Among these ligands, 35a (IC50 = 29.1 ± 2.6 nM) and 35b (IC50 = 56.5 ± 4.0 nM) exhibit binding potency toward S1PR2 comparable to JTE-013 (IC50 = 58.4 ± 7.4 nM) with good selectivity for S1PR2 over the other S1PRs (IC50 > 1000 nM). Further optimization of these analogues may identify additional and more potent and selective compounds targeting S1PR2.
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Affiliation(s)
- Zonghua Luo
- Department of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Xuyi Yue
- Department of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Hao Yang
- Department of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Hui Liu
- Department of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Robyn S Klein
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Neuroscience, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Zhude Tu
- Department of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA.
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Sowaileh MF, Hazlitt RA, Colby DA. Application of the Pentafluorosulfanyl Group as a Bioisosteric Replacement. ChemMedChem 2017; 12:1481-1490. [PMID: 28782186 DOI: 10.1002/cmdc.201700356] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/29/2017] [Indexed: 11/10/2022]
Abstract
The success of fluorinated molecules in drug design has led medicinal chemists to search for new fluorine-containing substituents. A major recently developed group is the pentafluorosulfanyl group. This group is stable under physiological conditions and displays unique physical and chemical properties. There are currently few synthetic methods to install the SF5 group, yet efforts to integrate this group into lead optimization continue unabated. Typically, the SF5 group has been used as a replacement for trifluoromethyl, tert-butyl, halogen, or nitro groups. In this review, the use of the SF5 group as a bioisosteric replacement for each of these three functionalities is compared and contrasted across various groups of biologically active molecules. The organization and presentation of these data should be instructive to medicinal chemists considering to design synthetic strategies to access SF5 -substituted molecules.
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Affiliation(s)
- Munia F Sowaileh
- Department of BioMolecular Sciences, University of Mississippi, University, MS, 38677, USA
| | - Robert A Hazlitt
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - David A Colby
- Department of BioMolecular Sciences, University of Mississippi, University, MS, 38677, USA
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Mszar NW, Mikus MS, Torker S, Haeffner F, Hoveyda AH. Electronically Activated Organoboron Catalysts for Enantioselective Propargyl Addition to Trifluoromethyl Ketones. Angew Chem Int Ed Engl 2017; 56:8736-8741. [PMID: 28560721 DOI: 10.1002/anie.201703844] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 05/15/2017] [Indexed: 11/11/2022]
Abstract
A broadly applicable, practical, scalable, efficient and highly α- and enantioselective method for addition of a silyl-protected propargyl moiety to trifluoromethyl ketones has been developed. Reactions, promoted by 2.0 mol % of a catalyst that is derived in situ from a readily accessible aminophenol compound at ambient temperature, were complete after only 15 minutes at room temperature. The desired tertiary alcohols were isolated in up to 97 % yield and 98.5:1.5 enantiomeric ratio. Alkyl-, alkenyl-, alkynyl-, aryl- or heteroaryl-substituted trifluoromethyl ketones can be used. Utility is highlighted by application to a transformation that is relevant to enantioselective synthesis of BI 653048, a compound active against rheumatoid arthritis.
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Affiliation(s)
- Nicholas W Mszar
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Malte S Mikus
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Fredrik Haeffner
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
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Mszar NW, Mikus MS, Torker S, Haeffner F, Hoveyda AH. Electronically Activated Organoboron Catalysts for Enantioselective Propargyl Addition to Trifluoromethyl Ketones. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703844] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Nicholas W. Mszar
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Malte S. Mikus
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Sebastian Torker
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Fredrik Haeffner
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
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Masoud SM, Mailyan AK, Peregudov AS, Bruneau C, Osipov SN. New fluorinated catalysts for olefin metathesis. MENDELEEV COMMUNICATIONS 2016. [DOI: 10.1016/j.mencom.2016.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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50
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Molnár IG, Thiehoff C, Holland MC, Gilmour R. Catalytic, Vicinal Difluorination of Olefins: Creating a Hybrid, Chiral Bioisostere of the Trifluoromethyl and Ethyl Groups. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02155] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- István G. Molnár
- Institute
for Organic Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Christian Thiehoff
- Institute
for Organic Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Mareike C. Holland
- Institute
for Organic Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Ryan Gilmour
- Institute
for Organic Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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