1
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Jiang Y, Meng X, Zhang J, Wu G, Lin X, Guo S. Photo-induced hydroxypentafluorosulfanylation of alkenes with SF 5Cl and oxygen gas and their further derivatization. Nat Commun 2024; 15:9705. [PMID: 39521769 PMCID: PMC11550833 DOI: 10.1038/s41467-024-54015-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 10/30/2024] [Indexed: 11/16/2024] Open
Abstract
Fluorinated or fluoroalkylated alcohols are common structural motifs in biologically active molecules, natural products, and pharmaceuticals. However, pentafluorosulfanyl (SF5) alcohols, a unique class of SF5 compounds that serve as synthetically valuable building blocks, are difficult to prepare with current methodologies. In this article, we present a single-step, metal-free, and photo-induced hydroxypentafluorosulfanylation of styrenes or α,β-unsaturated esters/amide, producing a series of structurally diverse pentafluorosulfanyl alcohols with up to 89% yields. This reaction is mild and operationally simple, using molecular oxygen as the hydroxy source. The protocol is suitable for a wide range of alkenes, including natural products and drug molecule derivatives. The formed SF5 alcohol units can be readily converted into diverse functionalized SF5 compounds, such as α-SF5 ketones, SF5 diols, and SF5 cyclic carbonates. The potential applications of these SF5 compounds in pharmaceutical and material sciences are vast, making this research a step forward in the field.
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Affiliation(s)
- Yuanyang Jiang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, PR China
| | - Xiaoli Meng
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, PR China
| | - Jiangshan Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, PR China
| | - Gang Wu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, PR China
| | - Xinjing Lin
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, PR China
| | - Shuo Guo
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, PR China.
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2
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Minneci M, Misevicius M, Rozas I. Searching for "Greener" Bioequivalents of CF 3 to Lower its Environmental Impact. Chemistry 2024; 30:e202401954. [PMID: 38958040 DOI: 10.1002/chem.202401954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/04/2024]
Abstract
Considering the broad use of the trifluoromethyl functional group (-CF3) in medicinal chemistry and taking into account the recent concerns on the negative environmental effects of CF3 containing compounds, we are searching for "greener" alternatives. Thus, different chemical groups (i. e. iodide, fluoride, cyclopropyl, isopropyl, cyclobutyl, 3-oxetyl, 2-oxetyl, methylsulfide, pentafluorosulfide, methylsulfonyl and sulfonamide) have been considered as potential bioequivalents of -CF3 aiming to use them in compounds with therapeutic interest instead of the polyfluoride functionality. Different structural (molecular surface and volume) and physicochemical (electronic and lipophilic) aspects of the bioequivalent functionalities proposed have been theoretically calculated and compared to those of -CF3. Additionally, the corresponding phenyl derivatives carrying these functionalities have been purchased or prepared and their experimental lipophilicity (i. e. LogP) measured using shake-flask experiments and UV-vis spectroscopy.
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Affiliation(s)
- Marco Minneci
- School of Chemistry, Trinity College Dublin, TBSI, 152-160 Pearse Street, Dublin, D02 R590, Ireland
| | - Matas Misevicius
- School of Chemistry, Trinity College Dublin, TBSI, 152-160 Pearse Street, Dublin, D02 R590, Ireland
| | - Isabel Rozas
- School of Chemistry, Trinity College Dublin, TBSI, 152-160 Pearse Street, Dublin, D02 R590, Ireland
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3
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Shinya S, Kawai K, Kobayashi N, Karuo Y, Tarui A, Sato K, Otsuka M, Omote M. Pentafluorosulfanyl-substituted biaryl derivatives as MATE-type transporter inhibitors targeting drug-resistant bacteria. Bioorg Med Chem 2024; 99:117606. [PMID: 38262304 DOI: 10.1016/j.bmc.2024.117606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/25/2024]
Abstract
Multidrug and toxin extrusion (MATE) inhibitors improve the antimicrobial susceptibility of drug-resistant bacteria by preventing the efflux of administered antibiotics. In this study, we optimized the chemical structure of a previously identified bacterial-selective MATE inhibitor 1 (EC50 > 30 µM) to improve its activity further. Compound 1 was divided into three fragments (aromatic part, linker part, and guanidine part), and each part was individually optimized. Compound 31 (EC50 = 1.8 µM), a novel pentafluorosulfanyl-containing molecule synthesized following optimized parts, showed antimicrobial activity against MATE-expressing strains at concentrations lower than conventional inhibitor 1 when co-administrated with norfloxacin. Furthermore, 31 was not cytotoxic at effective concentrations. This suggests that compound 31 can be a promising candidate for combating bacterial infections, particularly those resistant to conventional antibiotics by MATE expression.
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Affiliation(s)
- Susumu Shinya
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Kentaro Kawai
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - Naoki Kobayashi
- Faculty of Agriculture, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Yukiko Karuo
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Atsushi Tarui
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Kazuyuki Sato
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Masato Otsuka
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Masaaki Omote
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
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4
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Shou J, Qing F. Three‐Component Reaction of Pentafluorosulfanyl Chloride, Alkenes and Diazo Compounds and Synthesis of Pentafluorosulfanylfurans. Angew Chem Int Ed Engl 2022; 61:e202208860. [DOI: 10.1002/anie.202208860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Indexed: 12/16/2022]
Affiliation(s)
- Jia‐Yi Shou
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Science Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Feng‐Ling Qing
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Science Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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5
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Shou JY, Qing FL. Three‐Component Reaction of Pentafluorosulfanyl Chloride, Alkenes and Diazo Compounds and Synthesis of Pentafluorosulfanylfurans. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jia-Yi Shou
- Shanghai Institute of Organic Chemistry Key Laboratory of Organofluorine Chemistry CHINA
| | - Feng-Ling Qing
- Shanghai Institute of Organic Chemistry Laboratory of Organofluorine Chemistry 345 lingling Lu 200032 Shanghai CHINA
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6
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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: 2] [Impact Index Per Article: 1.0] [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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7
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Le TV, Daugulis O. In situ ortho-lithiation/functionalization of pentafluorosulfanyl arenes. Chem Commun (Camb) 2021; 58:537-540. [PMID: 34908042 DOI: 10.1039/d1cc06140b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A general method for ortho-functionalization of pentafluorosulfanyl arenes has been developed. ortho-Lithiation with lithium tetramethylpiperidide at -60 °C in the presence of silicon, germanium, and tin electrophiles affords trapped products in moderate to high yields. Precise temperature regimes and the presence of electrophiles during lithiation are important for successful reactions, since the pentafluorosulfanyl group acts as a competent leaving group at temperatures above -40 °C. Fluoro, bromo, iodo, enolizable keto, cyano, ester, amide, and unsubstituted amino functionalities are compatible with the reaction conditions. Conversion of 2-dimethylsilylpentafluorosulfanyl benzene to 2-halosubstituted derivatives, useful as starting materials in cross-coupling chemistry, was also demonstrated.
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Affiliation(s)
- Thanh V Le
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA.
| | - Olafs Daugulis
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA.
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8
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Gilbert A, Langowski P, Paquin JF. Synthesis of N-(2-SF5-ethyl)amines and impact of the SF5 substituent on their basicity and lipophilicity. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132424] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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9
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In vitro, in vivo, and ADME evaluation of SF 5-containing N,N'-diarylureas as antischistosomal agents. Antimicrob Agents Chemother 2021; 65:e0061521. [PMID: 34310210 DOI: 10.1128/aac.00615-21] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In recent years, N,N'-diarylureas have emerged as a promising chemotype for the treatment of schistosomiasis, a disease that poses a considerable health burden to millions of people worldwide. Here, we report a novel series of N,N'-diarylureas featuring the scarcely explored pentafluorosulfanyl group. Low IC50 values for Schistosoma mansoni newly transformed schistosomula (0.6 - 7.7 μM) and adult worms (0.1 - 1.6 μM) were observed. Four selected compounds, highly active in presence of albumin (>70% at 10 μM), endowed with decent cytotoxicity profile (SI against L6 cells >8.5) and good microsomal hepatic stability (>62.5% of drug remaining after 60 min), were tested in S. mansoni infected mice. Despite the promising in vitro worm killing potency, none of them showed significant activity in vivo. Pharmacokinetic data showed a slow absorption, with maximal drug concentrations reached after 24 h of exposure. Finally, no direct correlation between drug exposure and in vivo activity was found. Thus, further investigations are needed to better understand the underlying mechanisms of SF5-containing N,N'-diarylureas.
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10
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Debrauwer V, Leito I, Lõkov M, Tshepelevitsh S, Parmentier M, Blanchard N, Bizet V. Synthesis and Physicochemical Properties of 2-SF 5-(Aza)Indoles, a New Family of SF 5 Heterocycles. ACS ORGANIC & INORGANIC AU 2021; 1:43-50. [PMID: 36855754 PMCID: PMC9954346 DOI: 10.1021/acsorginorgau.1c00010] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Structural diversity in heterocyclic chemistry is key to unlocking new properties and modes of action. In this regard, heterocycles embedding emerging fluorinated substituents hold great promise. Herein is described a strategy to access 2-SF5-(aza)indoles for the first time. The sequence relies on the radical addition of SF5Cl to the alkynyl π-system of 2-ethynyl anilines followed by a cyclization reaction. A telescoped sequence is proposed, making this strategy very appealing and reproducible on a gram scale. Downstream functionalizations are also demonstrated, allowing an easy diversification of N- and C3-positions. Ames test, pK a, log P, and differential scanning calorimetry measurements of several fluorinated 2-Rf-indoles are also disclosed. These studies highlight the strategic advantages that a C2-pentafluorosulfanylated motif impart to a privileged scaffold such as an indole.
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Affiliation(s)
- Vincent Debrauwer
- Université
de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France
| | - Ivo Leito
- Institute
of Chemistry, University of Tartu, Tartu 50411, Estonia
| | - Märt Lõkov
- Institute
of Chemistry, University of Tartu, Tartu 50411, Estonia
| | | | - Michael Parmentier
- Chemical
and Analytical Development, Novartis Pharma
AG, CH-4056 Basel, Switzerland
| | - Nicolas Blanchard
- Université
de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France,
| | - Vincent Bizet
- Université
de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France,
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11
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12
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Dudziński P, Husstedt WS, Matsnev AV, Thrasher JS, Haufe G. Synthesis and [3,3]-sigmatropic rearrangements of 5-(pentafluorosulfanyl)-pent-3-en-2-ol, its homologues, and trifluoromethyl analogues. Org Biomol Chem 2021; 19:5607-5623. [PMID: 34100055 DOI: 10.1039/d1ob00870f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of aliphatic (pentafluoro-λ6-sulfanyl)(SF5)-substituted compounds is more challenging than that of the related CF3-substituted analogues. Previous investigations of [3,3]-sigmatropic rearrangements of γ-SF5-substituted allylic alcohols failed to yield 3-SF5-substituted carboxylic acid derivatives. Herein, we present the synthesis of a series of 1-SF5-alk-1-en-3-ols and our efforts to apply them in Johnson-Claisen, ester enolate-Claisen, and Ireland-Claisen rearrangements. Unfortunately, these reactions failed to include the 1-SF5-substituted 1,2-double bond, although successful reactions of analogous CF3-allylic alcohols were reported. Further experiments revealed that bulkiness rather than electronic properties of the SF5 group prevented [3,3]-sigmatropic rearrangements. Indeed, the introduction of a competing second vinyl group into the system (1-SF5-penta-1,4-dien-3-ol) confirmed that a Johnson-Claisen rearrangement was successful (92% yield of methyl 7-SF5-hepta-4,6-dienoate) with incorporation of the unsubstituted 4,5-double bond while the 1-SF5-substituted 1,2-double bond remained unchanged. Efforts to apply 1-(SF5CF2)-substituted 1,2-double bond systems, which are similar to CF3 analogues in steric requirements, in Johnson-Claisen or ester enolate-Claisen rearrangements failed because of the instability of the SF5CF2 substituent under various reaction conditions. On the other hand, when the SF5 group was separated from the reaction center by a CH2 group instead (5-SF5-pent-3-en-2-ol), Johnson-Claisen rearrangements using six orthoesters provided the target 2-substituted 3-(CH2SF5)-hex-4-enoates in 55-76% yields as ∼1 : 1 mixtures of diastereomers. As an example to demonstrate the utility of these products, methyl 3-(CH2SF5)-hex-4-enoate was reduced, and the formed alcohol was oxidized to the aldehyde. Finally, initial experiments showed that the synthetic sequence developed for SF5 compounds is also applicable for analogous CF3-substituted allylic alcohols (5-CF3-pent-3-en-2-ol) and their Johnson-Claisen rearrangement.
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Affiliation(s)
- Piotr Dudziński
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, D-48149 Münster, Germany.
| | - Wibke S Husstedt
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, D-48149 Münster, Germany.
| | - Andrej V Matsnev
- Department of Chemistry, Advanced Materials Research Laboratory, Clemson University, 91 Technology Drive, Anderson, South Carolina 29625, USA
| | - Joseph S Thrasher
- Department of Chemistry, Advanced Materials Research Laboratory, Clemson University, 91 Technology Drive, Anderson, South Carolina 29625, USA
| | - Günter Haufe
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, D-48149 Münster, Germany.
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Rombach D, Birenheide B, Wagenknecht H. Photoredox Catalytic Pentafluorosulfanylative Domino Cyclization of α-Substituted Alkenes to Oxaheterocycles by Using SF 6. Chemistry 2021; 27:8088-8093. [PMID: 33831262 PMCID: PMC8252034 DOI: 10.1002/chem.202100767] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Indexed: 01/14/2023]
Abstract
Virtually inert sulfur hexafluoride becomes a precious pentafluorosulfanylation agent, if properly activated by photoredox catalysis, to access α-fluoro and α-alkoxy SF5 -compounds. This advanced protocol converts SF6 in the presence of alkynols as bifunctional C-C- and C-O-bond forming reagents directly into pentafluorosulfanylated oxygen-containing heterocycles in a single step from α-substituted alkenes. The proposed mechanism is supported by theoretical calculations and gives insights not only in the pentafluorosulfanylation step but also into formation of the carbon-carbon bond and is in full agreement with Baldwin's cyclization rules. The key step is a radical type 5-, 6- respectively 7-exo-dig-cyclization. The synthesized oxaheterocycles cannot be simply prepared by other synthetic methods, show a high level of structural complexity and significantly expand the scope of pentafluorosulfanylated building blocks valuable for medicinal and material chemistry.
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Affiliation(s)
- David Rombach
- Laboratory of Inorganic ChemistrySwiss Federal Institute of Technology (ETH)Vladimir-Prelog-Weg 1–5/108093ZürichSwitzerland
| | - Bernhard Birenheide
- Institute of Inorganic ChemistryKalsruhe Institute of Technology (KIT)Engesserstr. 1576131KarlsruheGermany
| | - Hans‐Achim Wagenknecht
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
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14
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Hiscocks HG, Yit DL, Pascali G, Ung AT. Incorporation of the pentafluorosulfanyl group through common synthetic transformations. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02760-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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16
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17
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Gilbert A, Langowski P, Delgado M, Chabaud L, Pucheault M, Paquin JF. Amine-borane complex-initiated SF 5Cl radical addition on alkenes and alkynes. Beilstein J Org Chem 2020; 16:3069-3077. [PMID: 33414854 PMCID: PMC7753108 DOI: 10.3762/bjoc.16.256] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 12/03/2020] [Indexed: 11/30/2022] Open
Abstract
The SF5Cl radical addition on unsaturated compounds was performed using an air-stable amine-borane complex as the radical initiator. This method showed to be complementary to the classic Et3B-mediated SF5Cl addition on alkenes and alkynes. A total of seven alkene and three alkyne derivatives were tested in the reaction, with yields ranging from 3% to 85%.
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Affiliation(s)
- Audrey Gilbert
- Départment de chimie, Université Laval, Québec, QC, G1V 0A6, Canada
| | | | - Marine Delgado
- Institut des Sciences Moléculaires - Groupe ORGA - UMR 5255, Université de Bordeaux, 351 Cours de la libération, 33405 Talence, France
| | - Laurent Chabaud
- Institut des Sciences Moléculaires - Groupe ORGA - UMR 5255, Université de Bordeaux, 351 Cours de la libération, 33405 Talence, France
| | - Mathieu Pucheault
- Institut des Sciences Moléculaires - Groupe ORGA - UMR 5255, Université de Bordeaux, 351 Cours de la libération, 33405 Talence, France
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18
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Johnson BM, Shu YZ, Zhuo X, Meanwell NA. Metabolic and Pharmaceutical Aspects of Fluorinated Compounds. J Med Chem 2020; 63:6315-6386. [PMID: 32182061 DOI: 10.1021/acs.jmedchem.9b01877] [Citation(s) in RCA: 333] [Impact Index Per Article: 83.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The applications of fluorine in drug design continue to expand, facilitated by an improved understanding of its effects on physicochemical properties and the development of synthetic methodologies that are providing access to new fluorinated motifs. In turn, studies of fluorinated molecules are providing deeper insights into the effects of fluorine on metabolic pathways, distribution, and disposition. Despite the high strength of the C-F bond, the departure of fluoride from metabolic intermediates can be facile. This reactivity has been leveraged in the design of mechanism-based enzyme inhibitors and has influenced the metabolic fate of fluorinated compounds. In this Perspective, we summarize the literature associated with the metabolism of fluorinated molecules, focusing on examples where the presence of fluorine influences the metabolic profile. These studies have revealed potentially problematic outcomes with some fluorinated motifs and are enhancing our understanding of how fluorine should be deployed.
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Affiliation(s)
- Benjamin M Johnson
- Pharmaceutical Candidate Optimization, Bristol Myers Squibb Company, 100 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Yue-Zhong Shu
- Pharmaceutical Candidate Optimization, Bristol Myers Squibb Company, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Xiaoliang Zhuo
- Pharmaceutical Candidate Optimization, Bristol Myers Squibb Company, 100 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Nicholas A Meanwell
- Discovery Chemistry Platforms, Small Molecule Drug Discovery, Bristol Myers Squibb Company, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
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19
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González Espiet JC, Cintrón Cruz JA, Piñero Cruz DM. Structural characterization and Hirshfeld surface analysis of 2-iodo-4-(penta-fluoro-λ 6-sulfan-yl)benzo-nitrile. Acta Crystallogr E Crystallogr Commun 2020; 76:231-234. [PMID: 32071752 PMCID: PMC7001822 DOI: 10.1107/s2056989020000365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 01/13/2020] [Indexed: 11/10/2022]
Abstract
The title compound, C7H3F5INS, a penta-fluoro-sulfanyl (SF5) containing arene, was synthesized from 4-(penta-fluoro-sulfan-yl)benzo-nitrile and lithium tetra-methyl-piperidide following a variation to the standard approach, which features simple and mild conditions that allow direct access to tri-substituted SF5 inter-mediates that have not been demonstrated using previous methods. The mol-ecule displays a planar geometry with the benzene ring in the same plane as its three substituents. It lies on a mirror plane perpendicular to [010] with the iodo, cyano, and the sulfur and axial fluorine atoms of the penta-fluoro-sulfanyl substituent in the plane of the mol-ecule. The equatorial F atoms have symmetry-related counterparts generated by the mirror plane. The penta-fluoro-sulfanyl group exhibits a staggered fashion relative to the ring and the two hydrogen atoms ortho to the substituent. S-F bond lengths of the penta-fluoro-sulfanyl group are unequal: the equatorial bond facing the iodo moiety has a longer distance [1.572 (3) Å] and wider angle compared to that facing the side of the mol-ecules with two hydrogen atoms [1.561 (4) Å]. As expected, the axial S-F bond is the longest [1.582 (5) Å]. In the crystal, in-plane C-H⋯F and N⋯I inter-actions as well as out-of-plane F⋯C inter-actions are observed. According to the Hirshfeld analysis, the principal inter-molecular contacts for the title compound are F⋯H (29.4%), F⋯I (15.8%), F⋯N (11.4%), F⋯F (6.0%), N⋯I (5.6%) and F⋯C (4.5%).
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Affiliation(s)
- Jean C. González Espiet
- Department of Chemistry, University of Puerto Rico-Rio Piedras Campus, PO Box 23346, San Juan, 00931-3346, Puerto Rico
| | - Juan A. Cintrón Cruz
- Department of Chemistry, University of Puerto Rico-Rio Piedras Campus, PO Box 23346, San Juan, 00931-3346, Puerto Rico
| | - Dalice M. Piñero Cruz
- Department of Chemistry and the Molecular Sciences Research Center, University of Puerto Rico-Rio Piedras Campus, PO Box 23346, San Juan, 00931-3346, Puerto Rico
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Rombach D, Wagenknecht H. Photoredox Catalytic α-Alkoxypentafluorosulfanylation of α-Methyl- and α-Phenylstyrene Using SF 6. Angew Chem Int Ed Engl 2020; 59:300-303. [PMID: 31680388 PMCID: PMC6973110 DOI: 10.1002/anie.201910830] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/03/2019] [Indexed: 11/22/2022]
Abstract
SF6 was applied as pentafluorosulfanylation reagent to prepare ethers with a vicinal SF5 substituent through a one-step method involving photoredox catalysis. This method shows a broad substrate scope with respect to applicable alcohols for the conversion of α-methyl and α-phenyl styrenes. The products bear a new structural motif with two functional groups installed in one step. The alkoxy group allows elimination and azidation as further transformations into valuable pentafluorosulfanylated compounds. These results confirm that non-toxic SF6 is a useful SF5 transfer reagent if properly activated by photoredox catalysis, and toxic reagents are completely avoided. In combination with light as an energy source, a high level of sustainability is achieved. Through this method, the proposed potential of the SF5 substituent in medicinal chemistry, agrochemistry, and materials chemistry may be exploited in the future.
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Affiliation(s)
- David Rombach
- Karlsruhe Institute of Technology (KIT)Institute of Organic ChemistryFritz-Haber-Weg 6KarlsruheGermany
| | - Hans‐Achim Wagenknecht
- Karlsruhe Institute of Technology (KIT)Institute of Organic ChemistryFritz-Haber-Weg 6KarlsruheGermany
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21
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Mori S, Tsuemoto N, Kasagawa T, Nakano E, Fujii S, Kagechika H. Development of Boron-Cluster-Based Progesterone Receptor Antagonists Bearing a Pentafluorosulfanyl (SF 5) Group. Chem Pharm Bull (Tokyo) 2019; 67:1278-1283. [DOI: 10.1248/cpb.c19-00522] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Shuichi Mori
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
| | - Nozomi Tsuemoto
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
| | - Tomoya Kasagawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
| | - Eiichi Nakano
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
| | - Shinya Fujii
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
| | - Hiroyuki Kagechika
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
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22
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Rombach D, Wagenknecht H. Photoredoxkatalytische α‐Alkoxypentafluorosulfanylierung von α‐Methyl‐ und α‐Phenylstyrol mithilfe von SF
6. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910830] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- David Rombach
- Karlsruher Institut für Technologie (KIT) Institut für Organische Chemie Fritz-Haber-Weg 6 Karlsruhe Deutschland
| | - Hans‐Achim Wagenknecht
- Karlsruher Institut für Technologie (KIT) Institut für Organische Chemie Fritz-Haber-Weg 6 Karlsruhe Deutschland
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23
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Pertusati F, Ferla S, Bassetto M, Brancale A, Khandil S, Westwell AD, McGuigan C. A new series of bicalutamide, enzalutamide and enobosarm derivatives carrying pentafluorosulfanyl (SF5) and pentafluoroethyl (C2F5) substituents: Improved antiproliferative agents against prostate cancer. Eur J Med Chem 2019; 180:1-14. [DOI: 10.1016/j.ejmech.2019.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 01/31/2023]
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24
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Brel VK, Artyushin OI, Moiseeva AA, Sharova EV, Buyanovskaya AG, Nelyubina YV. Functionalization of bioactive substrates with a F5SCH = CH moiety. J Sulphur Chem 2019. [DOI: 10.1080/17415993.2019.1662906] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Valery K. Brel
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, Russian Federation
| | - Oleg I. Artyushin
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, Russian Federation
| | - Aleksandra A. Moiseeva
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, Russian Federation
| | - Elena V. Sharova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, Russian Federation
| | - Anastasiya G. Buyanovskaya
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, Russian Federation
| | - Yulia V. Nelyubina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, Russian Federation
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25
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Gilbert A, Paquin JF. Evaluation of the compatibility of pentafluorosulfanyl chloride with various solvents and additives. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.04.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Making the SF5
Group More Accessible: A Gas-Reagent-Free Approach to Aryl Tetrafluoro-λ6
-sulfanyl Chlorides. Angew Chem Int Ed Engl 2019; 58:1950-1954. [DOI: 10.1002/anie.201812356] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Indexed: 11/07/2022]
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27
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Pitts CR, Bornemann D, Liebing P, Santschi N, Togni A. Die SF5
-Gruppe zugänglicher gemacht: Eine gasfreie Synthese von Aryl-Tetrafluor-λ6
-Sulfanyl-Chloriden. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812356] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cody Ross Pitts
- Department Chemie und Angewandte Biowissenschaften; Eidgenössische Technische Hochschule (ETH); Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Dustin Bornemann
- Department Chemie und Angewandte Biowissenschaften; Eidgenössische Technische Hochschule (ETH); Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Phil Liebing
- Department Chemie und Angewandte Biowissenschaften; Eidgenössische Technische Hochschule (ETH); Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Nico Santschi
- Department Chemie und Angewandte Biowissenschaften; Eidgenössische Technische Hochschule (ETH); Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Antonio Togni
- Department Chemie und Angewandte Biowissenschaften; Eidgenössische Technische Hochschule (ETH); Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
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28
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Jin J, Zhou Y, Yang D, Zhang Q, Wang MW, Lu W. Synthesis of androgen receptor antagonists containing a pentafluorosulfanyl (SF 5 ) moiety. Arch Pharm (Weinheim) 2018; 351:e1800175. [PMID: 30318752 DOI: 10.1002/ardp.201800175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 09/12/2018] [Accepted: 09/26/2018] [Indexed: 11/09/2022]
Abstract
A novel scaffold of pentafluorosulfanyl (SF5 )-containing enzalutamide analogues was discovered for potent androgen receptor (AR) antagonists through rational drug design. Several compounds showed good biological profiles in AR binding. Of the derivatives studied, compound 8a had potent AR antagonist activity (IC50 = 7.1 ± 1.0 µM) and high efficacy (104.5 ± 12.8%). It exhibited an inhibitory effect comparable to that of enzalutamide (inhibition = 66.0 and 77.9%, respectively) in a prostate cancer cell line. The results point to the potential of using this scaffold to develop new AR antagonists.
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Affiliation(s)
- Jiyu Jin
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Yan Zhou
- The National Center for Drug Screening and the CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences (CAS), Shanghai, P. R. China
| | - Dehua Yang
- The National Center for Drug Screening and the CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences (CAS), Shanghai, P. R. China
| | - Qiumeng Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Ming-Wei Wang
- The National Center for Drug Screening and the CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences (CAS), Shanghai, P. R. China
| | - Wei Lu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
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29
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Das P, Niina K, Hiromura T, Tokunaga E, Saito N, Shibata N. An eccentric rod-like linear connection of two heterocycles: synthesis of pyridine trans-tetrafluoro-λ 6-sulfanyl triazoles. Chem Sci 2018; 9:4931-4936. [PMID: 29938019 PMCID: PMC5994873 DOI: 10.1039/c8sc01216d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/12/2018] [Indexed: 01/02/2023] Open
Abstract
The trans-tetrafluoro-λ6-sulfane (SF4) group has been utilized as a unique three-dimensional building block for the linear connection of two independent N-heterocycles, pyridines and triazoles. The linearly connected heterocyclic compounds were synthesized by thermal Huisgen 1,3-dipolar cycloaddition between previously unknown pyridine SF4-alkynes and readily available azides, providing a series of rod-like SF4-connected N-heterocycles in good to excellent yields. X-ray crystallographic analysis of the target products revealed the trans-geometry of the SF4 group, which linearly connects two independent N-heterocycles. This research will open the field of chemistry of SF4-connected heterocyclic compounds.
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Affiliation(s)
- Prajwalita Das
- Department of Nanopharmaceutical Sciences and Department of Life Science and Applied Chemistry , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan .
| | - Kiyoteru Niina
- Department of Nanopharmaceutical Sciences and Department of Life Science and Applied Chemistry , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan .
| | - Tomoya Hiromura
- Department of Nanopharmaceutical Sciences and Department of Life Science and Applied Chemistry , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan .
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences and Department of Life Science and Applied Chemistry , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan .
| | - Norimichi Saito
- Pharmaceutical Division , Ube Industries, Ltd. , Seavans North Bldg, 1-2-1 Shibaura, Minato-ku , Tokyo 105-8449 , Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences and Department of Life Science and Applied Chemistry , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan .
- Institute of Advanced Fluorine-Containing Materials , Zhejiang Normal University , 688 Yingbin Avenue , 321004 Jinhua , China
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30
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Savoie PR, von Hahmann CN, Penger A, Wei Z, Welch JT. The control of stereochemistry by the pentafluorosulfanyl group. Org Biomol Chem 2018; 16:3151-3159. [PMID: 29645036 DOI: 10.1039/c7ob03146g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The influence of pentafluorosulfanylation on biological activity has been revealed in numerous comparative studies of biologically active compounds, but considerably less is known about the influence of pentafluorosulfanylation on reactivity. Among the distinctive properties of the pentafluorosulfanyl group is the profound dipole moment that results from introduction of this substituent. It has been shown that dipolar effects coupled with the steric demand of the SF5 group may be employed to influence the stereochemistry of reactions, especially those processes with significant charge separation in the transition state. The Staudinger ketene-imine cycloaddition reaction is an ideal platform for investigation of dipolar control of diastereoselectivity by the pentafluorosulfanyl group.
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Affiliation(s)
- Paul R Savoie
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY 12222, USA.
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31
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Saccomanno M, Hussain S, O'Connor NK, Beier P, Somlyay M, Konrat R, Murphy CD. Biodegradation of pentafluorosulfanyl-substituted aminophenol in Pseudomonas spp. Biodegradation 2018; 29:259-270. [PMID: 29603052 DOI: 10.1007/s10532-018-9827-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 03/24/2018] [Indexed: 11/30/2022]
Abstract
The pentafluorosulfanyl (SF5-) substituent conveys properties that are beneficial to drugs and agrochemicals. As synthetic methodologies improve the number of compounds containing this group will expand and these chemicals may be viewed as emerging pollutants. As many microorganisms can degrade aromatic xenobiotics, we investigated the catabolism of SF5-substituted aminophenols by bacteria and found that some Pseudomonas spp. can utilise these compounds as sole carbon and energy sources. GC-MS analysis of the culture supernatants from cultures grown in 5-(pentafluorosulfanyl) 2-aminophenol demonstrated the presence of the N-acetylated derivative of the starting substrate and 4-(pentafluorosulfanyl)catechol. Biotransformation experiments with re-suspended cells were also conducted and fluorine-19 NMR analyses of the organic extract and aqueous fraction from suspended cell experiments revealed new resonances of SF5-substituted intermediates. Supplementation of suspended cell cultures with yeast extract dramatically improved the degradation of the substrate as well as the release of fluoride ion. 4-(Pentafluorosulfanyl)catechol was shown to be a shunt metabolite and toxic to some of the bacteria. This is the first study to demonstrate that microorganisms can biodegrade SF5-substituted aromatic compounds releasing fluoride ion, and biotransform them generating a toxic metabolite.
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Affiliation(s)
- Marta Saccomanno
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Sabir Hussain
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Dublin 4, Ireland.,Dept of Environmental Science & Engineering, Government College University, Faisalabad, Pakistan
| | - Neil K O'Connor
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Petr Beier
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Mate Somlyay
- Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
| | - Robert Konrat
- Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
| | - Cormac D Murphy
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Dublin 4, Ireland.
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32
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Das P, Takada M, Matsuzaki K, Saito N, Shibata N. SF 5-Pyridylaryl-λ 3-iodonium salts and their utility as electrophilic reagents to access SF 5-pyridine derivatives in the late-stage of synthesis. Chem Commun (Camb) 2018; 53:3850-3853. [PMID: 28317050 DOI: 10.1039/c7cc01043e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Electrophilic pentafluorosulfanyl (SF5) heteroarylation of target molecules using novel reagents is described. Unsymmetrical diaryliodonium reagents 1 having 2-SF5-pyridine have been synthesized in good yields. They are efficient electrophilic reagents for carbon and heterocentered nucleophiles, producing the corresponding SF5-pyridine derivatives in good to excellent yields.
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Affiliation(s)
- Prajwalita Das
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Masahiro Takada
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Kohei Matsuzaki
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Norimichi Saito
- Pharmaceutical Division, Ube Industries, Ltd, Seavans North Bldg., 1-2-1 Shibaura, Minato-ku, Tokyo 105-8449, Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
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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: 1417] [Impact Index Per Article: 236.2] [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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34
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Desroches J, Tremblay A, Paquin JF. Racemic and enantioselective metal-catalyzed synthesis of SF 5-containing diarylmethanols. Org Biomol Chem 2018; 14:8764-8780. [PMID: 27714227 DOI: 10.1039/c6ob01663d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The racemic and enantioselective metal-catalyzed addition of arylboronic acids to 4- and 3-(pentafluorosulfur)benzaldehydes is reported. The racemic synthesis was accomplished using a Pd-based system and a wide range of arylboronic acids could be used, resulting in yields of 42 to 98% of the corresponding SF5-containing diarylmethanols. A ruthenium-based system, along with (R,R)-Me-BIPAM as the chiral ligand, was investigated and optimized for the enantioselective version. In this case, while the chiral SF5-containing diarylmethanols were generally obtained in good yields (up to 94%) and enantioselectivities (up to 98% ee), limitations were also observed. For instance, 4-(pentafluorosulfur)benzaldehyde generally provided slightly better yields than 3-(pentafluorosulfur)benzaldehyde. In addition, lower yields and enantioselectivities were observed when using either 4- and 3-substituted arylboronic acids bearing electron-withdrawing (e.g., CO2Et, NO2, CF3) or 2-substituted arylboronic acids (regardless of the nature of the substituent). Overall, the SF5-containing diarylmethanols described herein represent novel and potentially useful fluorinated building blocks for the synthesis of biologically active compounds.
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Affiliation(s)
- Justine Desroches
- CCVC, PROTEO, Département de chimie, 1045 avenue de la Médecine, Université Laval, Québec, Québec, CanadaG1V 0A6.
| | - Ariane Tremblay
- CCVC, PROTEO, Département de chimie, 1045 avenue de la Médecine, Université Laval, Québec, Québec, CanadaG1V 0A6.
| | - Jean-François Paquin
- CCVC, PROTEO, Département de chimie, 1045 avenue de la Médecine, Université Laval, Québec, Québec, CanadaG1V 0A6.
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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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Arshad S, Raveendran Pillai R, Zainuri DA, Khalib NC, Razak IA, Armaković S, Armaković SJ, Renjith R, Panicker CY, Van Alsenoy C. Synthesis, XRD crystal structure, spectroscopic characterization, local reactive properties using DFT and molecular dynamics simulations and molecular docking study of (E)-1-(4-bromophenyl)-3-(4-(trifluoromethoxy)phenyl)prop-2-en-1-one. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.02.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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38
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Zhang Y, Wang Y, He C, Liu X, Lu Y, Chen T, Pan Q, Xiong J, She M, Tu Z, Qin X, Li M, Tortorella MD, Talley JJ. Pentafluorosulfanyl-Substituted Benzopyran Analogues As New Cyclooxygenase-2 Inhibitors with Excellent Pharmacokinetics and Efficacy in Blocking Inflammation. J Med Chem 2017; 60:4135-4146. [PMID: 28475316 DOI: 10.1021/acs.jmedchem.6b01484] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
In this report, we disclose the design and synthesis of a series of pentafluorosulfanyl (SF5) benzopyran derivatives as novel COX-2 inhibitors with improved pharmacokinetic and pharmacodynamic properties. The pentafluorosulfanyl compounds showed both potency and selectivity for COX-2 and demonstrated efficacy in several murine models of inflammation and pain. More interestingly, one of the compounds, R,S-3a, revealed exceptional efficacy in the adjuvant induced arthritis (AIA) model, achieving an ED50 as low as 0.094 mg/kg. In addition, the pharmacokinetics of compound R,S-3a in rat revealed a half-life in excess of 12 h and plasma drug concentrations well above its IC90 for up to 40 h. When R,S-3a was dosed just two times a week in the AIA model, efficacy was still maintained. Overall, drug R,S-3a and other analogues are suitable candidates that merit further investigation for the treatment of inflammation and pain as well as other diseases where COX-2 and PGE2 play a role in their etiology.
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Affiliation(s)
- Yanmei Zhang
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Yican Wang
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Chuang He
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Xiaorong Liu
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Yongzhi Lu
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Tingting Chen
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Qiong Pan
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Jingfang Xiong
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Miaoqin She
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Zhengchao Tu
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Xiaochu Qin
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Minke Li
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - Micky D Tortorella
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health , 190 Kaiyuan Avenue, Science City, Guangzhou 510530, P.R. China
| | - John J Talley
- Euclises Pharmaceuticals , St. Louis, Missouri 63108, United States
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39
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Cui B, Kosobokov M, Matsuzaki K, Tokunaga E, Shibata N. IF5 affects the final stage of the Cl–F exchange fluorination in the synthesis of pentafluoro-λ6-sulfanyl-pyridines, pyrimidines and benzenes with electron-withdrawing substituents. Chem Commun (Camb) 2017; 53:5997-6000. [PMID: 28513647 DOI: 10.1039/c7cc02802d] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
SF5-(hetero)arenes having electron-deficient groups were efficiently synthesized by oxidative chlorotetrafluorination followed by a SNi-type Cl–F exchange reaction using IF5.
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Affiliation(s)
- Benqiang Cui
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Mikhail Kosobokov
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Kohei Matsuzaki
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
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40
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Cui B, Jia S, Tokunaga E, Saito N, Shibata N. Silver-induced self-immolative Cl–F exchange fluorination of arylsulfur chlorotetrafluorides: synthesis of arylsulfur pentafluorides. Chem Commun (Camb) 2017; 53:12738-12741. [PMID: 29038817 DOI: 10.1039/c7cc07222h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cl–F exchange fluorination of (Het)ArSF4Cl without fluorinating reagents is disclosed.
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Affiliation(s)
- Benqiang Cui
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
- Nagoya 466-5888
| | - Shichong Jia
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
- Nagoya 466-5888
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
- Nagoya 466-5888
| | - Norimichi Saito
- Pharmaceutical Division
- Ube Industries Ltd. 1-2-1 Shibaura Minato-ku
- Tokyo 105-8449
- Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
- Nagoya 466-5888
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41
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Yoneyama H, Yamamoto D, Yamatodani A, Harusawa S. Efficient Approaches to <i>S</i>-alkyl-<i>N</i>-alkylisothioureas and Application to Novel Histamine H<sub>3</sub>R Antagonists. YAKUGAKU ZASSHI 2016; 136:1217-32. [DOI: 10.1248/yakushi.16-00023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hiroki Yoneyama
- Laboratory of Pharmaceutical Organic Chemistry, Osaka University of Pharmaceutical Sciences
| | | | | | - Shinya Harusawa
- Laboratory of Pharmaceutical Organic Chemistry, Osaka University of Pharmaceutical Sciences
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42
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Desroches J, Forcellini E, Paquin JF. Complementary Methods for the Introduction of the (E)-3-(Pentafluorosulfanyl)allyl Chain unto O-, N-, S-, and C-Based Nucleophiles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600684] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Justine Desroches
- CCVC; PROTEO; Département de Chimie; Université Laval; 1045 avenue de la Médecine G1V 0A6 Québec Québec Canada
| | - Elsa Forcellini
- CCVC; PROTEO; Département de Chimie; Université Laval; 1045 avenue de la Médecine G1V 0A6 Québec Québec Canada
| | - Jean-François Paquin
- CCVC; PROTEO; Département de Chimie; Université Laval; 1045 avenue de la Médecine G1V 0A6 Québec Québec Canada
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43
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Kosobokov M, Cui B, Balia A, Matsuzaki K, Tokunaga E, Saito N, Shibata N. Importance of a Fluorine Substituent for the Preparation of meta
- and para
-Pentafluoro-λ6
-sulfanyl-Substituted Pyridines. Angew Chem Int Ed Engl 2016; 55:10781-5. [DOI: 10.1002/anie.201605008] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 06/19/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Mikhail Kosobokov
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Benqiang Cui
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Andrii Balia
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Kohei Matsuzaki
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Norimichi Saito
- Pharmaceutical Division, Ube Industries, Ltd.; Seavans North Bldg, 1-2-1 Shibaura Minato-ku Tokyo 105-8449 Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
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44
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Kosobokov M, Cui B, Balia A, Matsuzaki K, Tokunaga E, Saito N, Shibata N. Importance of a Fluorine Substituent for the Preparation of meta
- and para
-Pentafluoro-λ6
-sulfanyl-Substituted Pyridines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Mikhail Kosobokov
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Benqiang Cui
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Andrii Balia
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Kohei Matsuzaki
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Norimichi Saito
- Pharmaceutical Division, Ube Industries, Ltd.; Seavans North Bldg, 1-2-1 Shibaura Minato-ku Tokyo 105-8449 Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
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45
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Microbial degradation of fluorinated drugs: biochemical pathways, impacts on the environment and potential applications. Appl Microbiol Biotechnol 2016; 100:2617-27. [PMID: 26830103 DOI: 10.1007/s00253-016-7304-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 01/05/2016] [Accepted: 01/07/2016] [Indexed: 12/25/2022]
Abstract
Since the discovery over 60 years ago of fluorocortisone's biological properties (9-α-Fluoro derivatives of cortisone and hydrocortisone; Fried J and Sabo EF, J Am Chem Soc 76: 1455-1456, 1954), the number of fluorinated drugs has steadily increased. With the improvement in synthetic methodologies, this trend is likely to continue and will lead to the introduction of new fluorinated substituents into pharmaceutical compounds. Although the biotransformation of organofluorine compounds by microorganisms has been well studied, specific investigations on fluorinated drugs are relatively few, despite the increase in the number and variety of fluorinated drugs that are available. The strength of the carbon-fluorine bond conveys stability to fluorinated drugs; thus, they are likely to be recalcitrant in the environment or may be partially metabolized to a more toxic metabolite. This review examines the research done on microbial biotransformation and biodegradation of fluorinated drugs and highlights the importance of understanding how microorganisms interact with this class of compound from environmental, clinical and biotechnological perspectives.
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46
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Vida N, Václavík J, Beier P. Synthesis and reactivity of aliphatic sulfur pentafluorides from substituted (pentafluorosulfanyl)benzenes. Beilstein J Org Chem 2016; 12:110-6. [PMID: 26877813 PMCID: PMC4734437 DOI: 10.3762/bjoc.12.12] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 01/14/2016] [Indexed: 02/04/2023] Open
Abstract
Oxidation of 3- and 4-pentafluorosulfanyl-substituted anisoles and phenols with hydrogen peroxide and sulfuric acid provided a mixture of SF5-substituted muconolactone, maleic, and succinic acids. A plausible mechanism for the formation of the aliphatic SF5 compounds was presented and their chemical reactivity was investigated. SF5-substituted para-benzoquinone was synthesized; its oxidation led to an improved yield of 2-(pentafluorosulfanyl)maleic acid. The reaction of SF5-substituted maleic anhydride and para-benzoquinone with cyclopentadiene afforded the Diels–Alder adducts. Decomposition of 3-(pentafluorosulfanyl)muconolactone in acidic, neutral and basic aqueous media was investigated and the decarboxylation of 2-(pentafluorosulfanyl)maleic acid provided 3-(pentafluorosulfanyl)acrylic acid.
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Affiliation(s)
- Norbert Vida
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Jiří Václavík
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic; Laboratory of Molecular Structure Characterization, Institute of Microbiology, v.v.i., Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Petr Beier
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
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47
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Berg C, Braun T, Laubenstein R, Braun B. Palladium-mediated borylation of pentafluorosulfanyl functionalized compounds: the crucial role of metal fluorido complexes. Chem Commun (Camb) 2016; 52:3931-4. [DOI: 10.1039/c5cc10219g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Model reactions such as the oxidative addition of SF5 aromatics at [Pd(PiPr3)2] and subsequent fluorination and borylation steps led to the development of catalytic processes for the borylation of SF5 compounds.
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Affiliation(s)
- Claudia Berg
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Thomas Braun
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Reik Laubenstein
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Beatrice Braun
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
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48
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Iida N, Tanaka K, Tokunaga E, Mori S, Saito N, Shibata N. Synthesis of Phthalocyanines with a Pentafluorosulfanyl Substituent at Peripheral Positions. ChemistryOpen 2015; 4:698-702. [PMID: 27308194 PMCID: PMC4906510 DOI: 10.1002/open.201500165] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Indexed: 11/24/2022] Open
Abstract
The pentafluorosulfanyl (SF5) group is more electronegative, lipophilic and sterically bulky relative to the well-explored trifluoromethyl (CF3) group. As such, the SF5 group could offer access to pharmaceuticals, agrochemicals and optoelectronic materials with novel properties. Here, the first synthesis of phthalocyanines (Pcs), a class of compounds used as dyes and with potential as photodynamic therapeutics, with a SF5 group directly attached on their peripheral positions is disclosed. The key for this work is the preparation of a series of SF5-containing phthalonitriles, which was beautifully regio-controlled by a stepwise cyanation via ortho-lithiation/iodination from commercially available pentafluorosulfanyl arenes. The macrocyclization of the SF5-containing phthalonitriles to SF5-substituted Pcs required harsh conditions with the exception of the synthesis of β-SF5-substituted Pc. The regiospecificity of the newly developed SF5-substituted Pcs observed by UV/Vis spectra and fluorescence quantum yields depend on the peripheral positon of the SF5 group.
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Affiliation(s)
- Norihito Iida
- Department of Frontier MaterialsNagoya Institute of TechnologyGokiso, Showa-kuNagoya466-8555Japan
| | - Kenta Tanaka
- Department of Frontier MaterialsNagoya Institute of TechnologyGokiso, Showa-kuNagoya466-8555Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical SciencesNagoya Institute of TechnologyGokiso, Showa-kuNagoya466-8555Japan
| | - Satoru Mori
- Department of Nanopharmaceutical SciencesNagoya Institute of TechnologyGokiso, Showa-kuNagoya466-8555Japan
| | - Norimichi Saito
- Pharmaceutical DivisionUbe Industries, Ltd.Seavans North Bldg., 1-2-1 Shibaura, Minato-kuTokyo105-8449Japan
| | - Norio Shibata
- Department of Frontier MaterialsNagoya Institute of TechnologyGokiso, Showa-kuNagoya466-8555Japan
- Department of Nanopharmaceutical SciencesNagoya Institute of TechnologyGokiso, Showa-kuNagoya466-8555Japan
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49
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Hendriks CMM, Penning TM, Zang T, Wiemuth D, Gründer S, Sanhueza IA, Schoenebeck F, Bolm C. Pentafluorosulfanyl-containing flufenamic acid analogs: Syntheses, properties and biological activities. Bioorg Med Chem Lett 2015; 25:4437-40. [PMID: 26372652 PMCID: PMC4599580 DOI: 10.1016/j.bmcl.2015.09.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 09/04/2015] [Accepted: 09/06/2015] [Indexed: 01/15/2023]
Abstract
Pentafluorosulfanyl-containing analogs of flufenamic acid have been synthesized in high yields. Computationally, pKa, LogP and LogD values have been determined. Initial bioactivity studies reveal effects as ion channel modulators and inhibitory activities on aldo-keto reductase 1C3 (AKR1C3) as well as COX-1 and COX-2.
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Affiliation(s)
- Christine M M Hendriks
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
| | - Trevor M Penning
- Center of Excellence in Environmental Toxicology, Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, 1315 BRBII/III, 421 Curie Blvd, Philadelphia, PA 19104-6160, United States
| | - Tianzhu Zang
- Center of Excellence in Environmental Toxicology, Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, 1315 BRBII/III, 421 Curie Blvd, Philadelphia, PA 19104-6160, United States
| | - Dominik Wiemuth
- Institute of Physiology, Universitätsklinikum Aachen, RWTH Aachen University, Pauwelsstraße 30, D-52074 Aachen, Germany
| | - Stefan Gründer
- Institute of Physiology, Universitätsklinikum Aachen, RWTH Aachen University, Pauwelsstraße 30, D-52074 Aachen, Germany
| | - Italo A Sanhueza
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
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50
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Wei ZL, Nguyen MT, O’Mahony DJ, Acevedo A, Zipfel S, Zhang Q, Liu L, Dourado M, Chi C, Yip V, DeFalco J, Gustafson A, Emerling DE, Kelly MG, Kincaid J, Vincent F, Duncton MA. Identification of orally-bioavailable antagonists of the TRPV4 ion-channel. Bioorg Med Chem Lett 2015; 25:4011-5. [DOI: 10.1016/j.bmcl.2015.06.098] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 06/25/2015] [Accepted: 06/29/2015] [Indexed: 10/23/2022]
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