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Milite C, Sarno G, Pacilio I, Cianciulli A, Viviano M, Iannelli G, Gazzillo E, Feoli A, Cipriano A, Giovanna Chini M, Castellano S, Bifulco G, Sbardella G. Prodrug Approach to Exploit (S)-Alanine Amide as Arginine Mimic Moiety in the Development of Protein Arginine Methyltransferase 4 Inhibitors. ChemMedChem 2024:e202400139. [PMID: 38752332 DOI: 10.1002/cmdc.202400139] [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: 02/20/2024] [Revised: 05/15/2024] [Indexed: 06/27/2024]
Abstract
Protein arginine methyltransferase (PRMT) 4 (also known as coactivator-associated arginine methyltransferase 1; CARM1) is involved in a variety of biological processes and is considered as an emerging target class in oncology and other diseases. A successful strategy to identify PRMT substrate-competitive inhibitors has been to exploit chemical scaffolds able to mimic the arginine substrate. (S)-Alanine amide moiety is a valuable arginine mimic for the development of potent and selective PRMT4 inhibitors; however, its high hydrophilicity led to derivatives with poor cellular outcomes. Here, we describe the development of PRMT4 inhibitors featuring a central pyrrole core and an alanine amide moiety. Rounds of optimization, aimed to increase lipophilicity and simultaneously preserve the inhibitory activity, produced derivatives that, despite good potency and physicochemical properties, did not achieve on-target effects in cells. On the other hand, masking the amino group with a NAD(P)H:quinone oxidoreductase 1 (NQO1)-responsive trigger group, led to prodrugs able to reduce arginine dimethylation of the PRMT4 substrates BRG1-associated factor 155 (BAF155). These results indicate that prodrug strategies can be successfully applied to alanine-amide containing PRMT4 inhibitors and provide an option to enable such compounds to achieve sufficiently high exposures in vivo.
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Affiliation(s)
- Ciro Milite
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Giuliana Sarno
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
- PhD Program in Drug Discovery and Development, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Ida Pacilio
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
- PhD Program in Drug Discovery and Development, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Agostino Cianciulli
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
- Present Address: Center for Drug Discovery and Development-DMPK, Aptuit, an Evotec Company, Via A. Fleming,4, 37135, Verona, Italy
| | - Monica Viviano
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Giulia Iannelli
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
- Present Address: Institute of Organic Chemistry, University of Vienna, WähringerStraße38, 1090, Wien, Austria
| | - Erica Gazzillo
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
- PhD Program in Drug Discovery and Development, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Alessandra Feoli
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Alessandra Cipriano
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Maria Giovanna Chini
- Dipartimento di Bioscienze e Territorio, University of Molise, Contrada Fonte, Lappone, 86090 Isernia, Italy
| | - Sabrina Castellano
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Gianluca Sbardella
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
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2
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Clover A, Jones AP, Berger RF, Kaminsky W, O’Neil GW. Regioselective Fluorohydrin Synthesis from Allylsilanes and Evidence for a Silicon-Fluorine Gauche Effect. J Org Chem 2024; 89:4309-4318. [PMID: 38457664 PMCID: PMC11002936 DOI: 10.1021/acs.joc.3c02163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 02/20/2024] [Accepted: 02/26/2024] [Indexed: 03/10/2024]
Abstract
Allylsilanes can be regioselectively transformed into the corresponding 3-silylfluorohydrin in good yield using a sequence of epoxidation followed by treatment with HF·Et3N with or without isolation of the intermediate epoxide. Various silicon-substitutions are tolerated, resulting in a range of 2-fluoro-3-silylpropan-1-ol products from this method. Whereas other fluorohydrin syntheses by epoxide opening using HF·Et3N generally require more forcing conditions (e.g., higher reaction temperature), opening of allylsilane-derived epoxides with this reagent occurs at room temperature. We attribute this rate acceleration along with the observed regioselectivity to a β-silyl effect that stabilizes a proposed cationic intermediate. The use of enantioenriched epoxides indicates that both SN1- and SN2-type mechanisms may be operable depending on substitution at silicon. Conformational analysis by NMR and theory along with a crystal structure obtained by X-ray diffraction points to a preference for silicon and fluorine to be proximal to one another in the products, perhaps favored due to electrostatic interactions.
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Affiliation(s)
- Alexie
W. Clover
- Department
of Chemistry, Western Washington University, Bellingham, Washington 98229, United States
| | - Adam P. Jones
- Department
of Chemistry, Western Washington University, Bellingham, Washington 98229, United States
| | - Robert F. Berger
- Department
of Chemistry, Western Washington University, Bellingham, Washington 98229, United States
| | - Werner Kaminsky
- Department
of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Gregory. W. O’Neil
- Department
of Chemistry, Western Washington University, Bellingham, Washington 98229, United States
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3
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Citarella A, Vittorio S, Dank C, Ielo L. Syntheses, reactivity, and biological applications of coumarins. Front Chem 2024; 12:1362992. [PMID: 38440776 PMCID: PMC10909861 DOI: 10.3389/fchem.2024.1362992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 02/05/2024] [Indexed: 03/06/2024] Open
Abstract
This comprehensive review, covering 2021-2023, explores the multifaceted chemical and pharmacological potential of coumarins, emphasizing their significance as versatile natural derivatives in medicinal chemistry. The synthesis and functionalization of coumarins have advanced with innovative strategies. This enabled the incorporation of diverse functional fragments or the construction of supplementary cyclic architectures, thereby the biological and physico-chemical properties of the compounds obtained were enhanced. The unique chemical structure of coumarine facilitates binding to various targets through hydrophobic interactions pi-stacking, hydrogen bonding, and dipole-dipole interactions. Therefore, this important scaffold exhibits promising applications in uncountable fields of medicinal chemistry (e.g., neurodegenerative diseases, cancer, inflammation).
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Affiliation(s)
- Andrea Citarella
- Dipartimento di Chimica, Università degli Studi di Milano, Milano, Italy
| | - Serena Vittorio
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Christian Dank
- Institute of Organic Chemistry, University of Vienna, Vienna, Austria
| | - Laura Ielo
- Department of Chemistry, University of Turin, Turin, Italy
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4
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Lin LQH, Rentería-Gómez Á, Martin RT, Zhang YQ, Ong KZW, Parris AB, Gutierrez O, Koh MJ. Selective 1,2-Hydroarylation(Alkenylation) of gem-Difluoroalkenes to Access (-CF 2 H) Motifs. Angew Chem Int Ed Engl 2024; 63:e202317935. [PMID: 38117662 PMCID: PMC11076007 DOI: 10.1002/anie.202317935] [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: 11/23/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 12/22/2023]
Abstract
An emerging class of C-C coupling transformations that furnish drug-like building blocks involves catalytic hydrocarbonation of alkenes. However, despite notable advances in the field, hydrocarbon addition to gem-difluoroalkenes without additional electronic activation remains largely unsuccessful. This owes partly to poor reactivity and the propensity of difluoroalkenes to undergo defluorinative side reactions. Here, we report a nickel catalytic system that promotes efficient 1,2-selective hydroarylation and hydroalkenylation, suppressing defluorination and providing straightforward access to a diverse assortment of prized organofluorides bearing difluoromethyl-substituted carbon centers. In contrast to radical-based pathways and reactions triggered by hydrometallation via a nickel-hydride complex, our experimental and computational studies support a mechanism in which a catalytically active nickel-bromide species promotes selective carbonickelation with difluoroalkenes followed by alkoxide exchange and hydride transfer, effectively overcoming the difluoroalkene's intrinsic electronic bias.
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Affiliation(s)
- Leroy Qi Hao Lin
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Singapore
| | | | - Robert T Martin
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Ying-Qi Zhang
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Singapore
| | - Kelvin Zhi Wei Ong
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Singapore
| | - Adam B Parris
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Singapore
| | - Osvaldo Gutierrez
- Department of Chemistry, Texas A&M University, College Station, TX 77843, USA
| | - Ming Joo Koh
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Singapore
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Pellei M, Del Gobbo J, Caviglia M, Gandin V, Marzano C, Karade DV, Noonikara Poyil A, Dias HVR, Santini C. Synthesis and Investigations of the Antitumor Effects of First-Row Transition Metal(II) Complexes Supported by Two Fluorinated and Non-Fluorinated β-Diketonates. Int J Mol Sci 2024; 25:2038. [PMID: 38396717 PMCID: PMC10889438 DOI: 10.3390/ijms25042038] [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: 01/18/2024] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
The 3d transition metal (Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II)) complexes, supported by anions of sterically demanding β-diketones, 1,3-dimesitylpropane-1,3-dione (HLMes) and 1,3-bis(3,5-bis(trifluoromethyl)phenyl)-3-hydroxyprop-2-en-1-one (HLCF3), were synthesized and evaluated for their antitumor activity. To assess the biological effects of substituents on phenyl moieties, we also synthesized and investigated the analogous metal(II) complexes of the anion of the less bulky 1,3-diphenylpropane-1,3-dione (HLPh) ligand. The compounds [Cu(LCF3)2], [Cu(LMes)2] and ([Zn(LMes)2]) were characterized by X-ray crystallography. The [Cu(LCF3)2] crystallizes with an apical molecule of solvent (THF) and features a rare square pyramidal geometry at the Cu(II) center. The copper(II) and zinc(II) complexes of diketonate ligands, derived from the deprotonated 1,3-dimesitylpropane-1,3-dione (HLMes), adopt a square planar or a tetrahedral geometry at the metal, respectively. We evaluated the antitumor properties of the newly synthesized (Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II)) complexes against a series of human tumor cell lines derived from different solid tumors. Except for iron derivatives, cellular studies revealed noteworthy antitumor properties, even towards cancer cells endowed with poor sensitivity to the reference drug cisplatin.
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Affiliation(s)
- Maura Pellei
- School of Science and Technology—Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.)
| | - Jo’ Del Gobbo
- School of Science and Technology—Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.)
| | - Miriam Caviglia
- School of Science and Technology—Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.)
| | - Valentina Gandin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy
| | - Cristina Marzano
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy
| | - Deepika V. Karade
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, P.O. Box 19065, Arlington, TX 76019, USA; (D.V.K.); (H.V.R.D.)
| | - Anurag Noonikara Poyil
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, P.O. Box 19065, Arlington, TX 76019, USA; (D.V.K.); (H.V.R.D.)
| | - H. V. Rasika Dias
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, P.O. Box 19065, Arlington, TX 76019, USA; (D.V.K.); (H.V.R.D.)
| | - Carlo Santini
- School of Science and Technology—Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.)
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6
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Zhao J, Chen Y, Ding Z, Zhou Y, Bi R, Qin Z, Yang L, Sun P, Sun Q, Chen G, Sun D, Jiang X, Zheng L, Chen XL, Wan H, Wang G, Li Q, Teng H, Li G. Identification of propranolol and derivatives that are chemical inhibitors of phosphatidate phosphatase as potential broad-spectrum fungicides. PLANT COMMUNICATIONS 2024; 5:100679. [PMID: 37653727 PMCID: PMC10811373 DOI: 10.1016/j.xplc.2023.100679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 08/18/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023]
Abstract
Plant diseases cause enormous economic losses in agriculture and threaten global food security, and application of agrochemicals is an important method of crop disease control. Exploration of disease-resistance mechanisms and synthesis of highly bioactive agrochemicals are thus important research objectives. Here, we show that propranolol, a phosphatidate phosphatase (Pah) inhibitor, effectively suppresses fungal growth, sporulation, sexual reproduction, and infection of diverse plants. The MoPah1 enzyme activity of the rice blast fungus Magnaporthe oryzae is inhibited by propranolol. Alterations in lipid metabolism are associated with inhibited hyphal growth and appressorium formation caused by propranolol in M. oryzae. Propranolol inhibits a broad spectrum of 12 plant pathogens, effectively inhibiting infection of barley, wheat, maize, tomato, and pear. To improve antifungal capacity, we synthesized a series of propranolol derivatives, one of which shows a 16-fold increase in antifungal ability and binds directly to MoPah1. Propranolol and its derivatives can also reduce the severity of rice blast and Fusarium head blight of wheat in the field. Taken together, our results demonstrate that propranolol suppresses fungal development and infection through mechanisms involved in lipid metabolism. Propranolol and its derivatives may therefore be promising candidates for fungicide development.
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Affiliation(s)
- Juan Zhao
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China; College of Chemistry and Life Sciences, Sichuan Provincial Key Laboratory for Development and Utilization of Characteristic Horticultural Biological Resources, Chengdu Normal University, Chengdu 611130, China
| | - Yu Chen
- College of Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhifen Ding
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yaru Zhou
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China
| | - Ruiqing Bi
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China
| | - Ziting Qin
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China
| | - Lei Yang
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China
| | - Peng Sun
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China
| | - Qiping Sun
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China
| | - Guang Chen
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Daiyuan Sun
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Xianya Jiang
- Yangjiang Institute of Agricultural Sciences, Yangjiang 529500, China
| | - Lu Zheng
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiao-Lin Chen
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China
| | - Hu Wan
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China
| | - Guanghui Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Qiang Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China.
| | - Huailong Teng
- College of Science, Huazhong Agricultural University, Wuhan 430070, China.
| | - Guotian Li
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, The Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan 430070, China.
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7
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Grčić I, Radetić L, Miklec K, Presečki I, Leskovar K, Meaški H, Čizmić M, Brnardić I. Solar photocatalysis application in UWWTP outlets - simulations based on predictive models in flat-plate reactors and pollutant degradation studies with in silico toxicity assessment. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132589. [PMID: 37742381 DOI: 10.1016/j.jhazmat.2023.132589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 09/26/2023]
Abstract
The application of the solar photocatalysis for the degradation of residual pollutants found in surface water was demonstrated. Semi-pilot scale flat-plate cascade reactor (FPCR) was used to study the degradation of model organic pollutants: enrofloxacin (ENRO), 17β-estradiol (E2) and 1H-benzotriazole (1H-BT) over TiO2 thin-film supported on glass fibers. A modular panel with full-spectra solar lamps with appropriate UVB and UVA irradiation levels was used as a simulation of sunlight. Pollutant degradation in FPCR was estimated using predictive models; intrinsic reaction rate constants (ki) for ENRO, E2 and 1H-BT independent of the reactor size, flow rate and irradiation conditions were determined: 9.60, 3.35 and 0.37 109 s-1 W-0.5 m1.5, respectively. Main degradation products (DPs), formed upon hydroxylation, ring opening and oxidation, were identified using LC-QTOF-MS. The ecotoxicological impact was assessed via T.E.S.T. and ECOSAR open-source tools showing the formation of less harmful DPs after sufficient reaction time. Pollutant degradation was simulated at four locations of interest, i.e. exhausts from urban wastewater treatment plants (UWWTPs) in Zagreb, Croatia (45°N), Krakow, Poland (50°N), Sevilla, Spain (37°N) and Ioannina, Greece (39.6°N). Results have proved that a simple flat-plate system with supported photocatalysts can be easily scaled up and incorporated at the outlet of UWWTP for the reduction of pollutant load and related toxicity. The exhaust canal in Zagreb with the estimated length of a photocatalytic layer of 122 m for the > 90% degradation of all target pollutants was discussed as the best installation site among studied locations. ENVIRONMENTAL IMPLICATION: A multi-disciplinary approach to the tentative application of TiO2 solar photocatalysis outdoors to reduce pollutant loads and toxicity in surface waters was demonstrated. Possible application at four selected locations in Europe, as an additional step in water treatment after urban wastewater treatment plants (UWWTPs) was discussed. Target pollutants were studied under environmentally relevant conditions (sunlight levels, water matrix, simulation of process on a real scale at selected geographical location), at both higher and low concentrations.
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Affiliation(s)
- Ivana Grčić
- University of Zagreb, Faculty of Geotechnical Engineering, Hallerova aleja 7, 42000 Varaždin, Croatia.
| | - Lucija Radetić
- University of Zagreb, Faculty of Geotechnical Engineering, Hallerova aleja 7, 42000 Varaždin, Croatia
| | - Kristina Miklec
- University of Zagreb, Faculty of Geotechnical Engineering, Hallerova aleja 7, 42000 Varaždin, Croatia
| | - Ivana Presečki
- University of Zagreb, Faculty of Geotechnical Engineering, Hallerova aleja 7, 42000 Varaždin, Croatia
| | - Karlo Leskovar
- University of Zagreb, Faculty of Geotechnical Engineering, Hallerova aleja 7, 42000 Varaždin, Croatia
| | - Hrvoje Meaški
- University of Zagreb, Faculty of Geotechnical Engineering, Hallerova aleja 7, 42000 Varaždin, Croatia
| | - Mirta Čizmić
- Selvita S.A., Hondlova 2, 10 000 Zagreb, Croatia
| | - Ivan Brnardić
- University of Zagreb, Faculty of Metallurgy, Aleja narodnih heroja 3, 44000 Sisak, Croatia
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8
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Troshkova N, Politanskaya L, Bagryanskaya I, Chuikov I, Wang J, Ilyina P, Mikhalski M, Esaulkova I, Volobueva A, Zarubaev V. Fluorinated 2-arylchroman-4-ones and their derivatives: synthesis, structure and antiviral activity. Mol Divers 2023:10.1007/s11030-023-10769-6. [PMID: 38153637 DOI: 10.1007/s11030-023-10769-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/10/2023] [Indexed: 12/29/2023]
Abstract
A number of new biologically interesting fluorinated 2-arylchroman-4-ones and their 3-arylidene derivatives were synthesized based on the p-toluenesulfonic acid-catalyzed one-pot reaction of 2-hydroxyacetophenones with benzaldehydes. It was found that obtained (E)-3-arylidene-2-aryl-chroman-4-ones reacted with malononitrile under base conditions to form 4,5-diaryl-4H,5H-pyrano[3,2-c]chromenes. The structures of the synthesized fluorinated compounds were confirmed by 1H, 19F, and 13C NMR spectral data, and for some representatives of heterocycles also using NOESY spectra and X-ray diffraction analysis. A large series of obtained flavanone derivatives as well as products of their modification (35 examples) containing from 1 to 12 fluorine atoms in the structure was tested in vitro for cytotoxicity in MDCK cell line and for antiviral activity against influenza A virus. Among the studied heterocycles 6,8-difluoro-2-(4-(trifluoromethyl)phenyl)chroman-4-one (IC50 = 6 μM, SI = 150) exhibited the greatest activity against influenza A/Puerto Rico/8/34 (H1N1) virus. Moreover, this compound appeared active against phylogenetically distinct influenza viruses, A(H5N2) and influenza B (SI's of 53 and 42, correspondingly). The data obtained suggest that the fluorinated derivatives of 2-arylchroman-4-ones are prospective scaffolds for further development of potent anti-influenza antivirals.
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Affiliation(s)
- Nadezhda Troshkova
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Ac. Lavrentiev Avenue, 9, Novosibirsk, Russian Federation, 630090
| | - Larisa Politanskaya
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Ac. Lavrentiev Avenue, 9, Novosibirsk, Russian Federation, 630090.
| | - Irina Bagryanskaya
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Ac. Lavrentiev Avenue, 9, Novosibirsk, Russian Federation, 630090
| | - Igor Chuikov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Ac. Lavrentiev Avenue, 9, Novosibirsk, Russian Federation, 630090
| | - Jiaying Wang
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Ac. Lavrentiev Avenue, 9, Novosibirsk, Russian Federation, 630090
- Novosibirsk State University, Pirogova Street, 2, Novosibirsk, Russian Federation, 630090
| | - Polina Ilyina
- Saint-Petersburg Pasteur Research Institute of Epidemiology and Microbiology, Mira Street, 14, Saint-Petersburg, Russian Federation, 197101
| | - Mikhail Mikhalski
- Saint-Petersburg Pasteur Research Institute of Epidemiology and Microbiology, Mira Street, 14, Saint-Petersburg, Russian Federation, 197101
| | - Iana Esaulkova
- Saint-Petersburg Pasteur Research Institute of Epidemiology and Microbiology, Mira Street, 14, Saint-Petersburg, Russian Federation, 197101
| | - Alexandrina Volobueva
- Saint-Petersburg Pasteur Research Institute of Epidemiology and Microbiology, Mira Street, 14, Saint-Petersburg, Russian Federation, 197101
| | - Vladimir Zarubaev
- Saint-Petersburg Pasteur Research Institute of Epidemiology and Microbiology, Mira Street, 14, Saint-Petersburg, Russian Federation, 197101
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9
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Faleye OS, Boya BR, Lee JH, Choi I, Lee J. Halogenated Antimicrobial Agents to Combat Drug-Resistant Pathogens. Pharmacol Rev 2023; 76:90-141. [PMID: 37845080 DOI: 10.1124/pharmrev.123.000863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 08/07/2023] [Accepted: 09/29/2023] [Indexed: 10/18/2023] Open
Abstract
Antimicrobial resistance presents us with a potential global crisis as it undermines the abilities of conventional antibiotics to combat pathogenic microbes. The history of antimicrobial agents is replete with examples of scaffolds containing halogens. In this review, we discuss the impacts of halogen atoms in various antibiotic types and antimicrobial scaffolds and their modes of action, structure-activity relationships, and the contributions of halogen atoms in antimicrobial activity and drug resistance. Other halogenated molecules, including carbohydrates, peptides, lipids, and polymeric complexes, are also reviewed, and the effects of halogenated scaffolds on pharmacokinetics, pharmacodynamics, and factors affecting antimicrobial and antivirulence activities are presented. Furthermore, the potential of halogenation to circumvent antimicrobial resistance and rejuvenate impotent antibiotics is addressed. This review provides an overview of the significance of halogenation, the abilities of halogens to interact in biomolecular settings and enhance pharmacological properties, and their potential therapeutic usages in preventing a postantibiotic era. SIGNIFICANCE STATEMENT: Antimicrobial resistance and the increasing impotence of antibiotics are critical threats to global health. The roles and importance of halogen atoms in antimicrobial drug scaffolds have been established, but comparatively little is known of their pharmacological impacts on drug resistance and antivirulence activities. This review is the first to extensively evaluate the roles of halogen atoms in various antibiotic classes and pharmacological scaffolds and to provide an overview of their ability to overcome antimicrobial resistance.
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Affiliation(s)
- Olajide Sunday Faleye
- School of Chemical Engineering (O.S.F., B.R.B., J.-H.L., J.L.) and Department of Medical Biotechnology (I.C.), Yeungnam University, Gyeongsan, Republic of Korea
| | - Bharath Reddy Boya
- School of Chemical Engineering (O.S.F., B.R.B., J.-H.L., J.L.) and Department of Medical Biotechnology (I.C.), Yeungnam University, Gyeongsan, Republic of Korea
| | - Jin-Hyung Lee
- School of Chemical Engineering (O.S.F., B.R.B., J.-H.L., J.L.) and Department of Medical Biotechnology (I.C.), Yeungnam University, Gyeongsan, Republic of Korea
| | - Inho Choi
- School of Chemical Engineering (O.S.F., B.R.B., J.-H.L., J.L.) and Department of Medical Biotechnology (I.C.), Yeungnam University, Gyeongsan, Republic of Korea
| | - Jintae Lee
- School of Chemical Engineering (O.S.F., B.R.B., J.-H.L., J.L.) and Department of Medical Biotechnology (I.C.), Yeungnam University, Gyeongsan, Republic of Korea
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10
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Sudoł-Tałaj S, Kucwaj-Brysz K, Podlewska S, Kurczab R, Satała G, Mordyl B, Głuch-Lutwin M, Wilczyńska-Zawal N, Jastrzębska-Więsek M, Czarnota-Łydka K, Kurowska K, Kubacka M, Żesławska E, Nitek W, Olejarz-Maciej A, Doroz-Płonka A, Partyka A, Latacz G, Wesołowska A, Handzlik J. Hydrophobicity modulation via the substituents at positions 2 and 4 of 1,3,5-triazine to enhance therapeutic ability against Alzheimer's disease for potent serotonin 5-HT 6R agents. Eur J Med Chem 2023; 260:115756. [PMID: 37657272 DOI: 10.1016/j.ejmech.2023.115756] [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: 04/01/2023] [Revised: 08/07/2023] [Accepted: 08/23/2023] [Indexed: 09/03/2023]
Abstract
Alzheimer's disease (AD), a neurodegenerative disorder with a complex aetiology, is the most common memory dysfunction particularly affecting the elderly. Various protein targets have been classified to be involved in the AD treatment, including 5-HT6 receptor (5-HT6R). So far, the 5-HT6R ligands obtained by our research group have become a good basis for hydrophobicity modulation to give a chance for more effective action toward AD by additional influence on target enzymes, e.g. cyclin-dependent kinase 5 (CDK5). In the search for 5-HT6R agents with additional inhibitory action on the enzyme, a series of 25 new 1,3,5-triazines (7-31) as modifications of lead, 4-[1-(2,5-dichlorophenoxy)propyl]-6-(4-methylpiperazin-1-yl)-1,3,5-triazine-2-amine (6), was rationally designed. Molecular modelling, synthesis, crystallographic studies, in vitro biological assays and behavioral studies in vivo were performed. The new triazines showed high affinity (Ki < 100 nM) and selectivity for 5-HT6R. The most effective one, 4-[1-(2,5-difluorophenoxy)propyl]-6-(4-methylpiperazin-1-yl)-1,3,5-triazine-2-amine (8), exhibited the strong antagonistic action towards 5-HT6R (Ki = 5 nM, pKb = 8.16), had an impact on the memory processes in the Novel Object Recognition test and displayed anxiolytic-like activity in the Elevated Plus Maze test in rats. Moreover, it had the antiplatelet effect as well as very good permeability (PAMPA model), high metabolic stability (RLMs) and satisfactory safety in vitro. Although the CDK5 inhibitory effects in vitro for the tested compounds (8, 10, 14, 18, 26-31) missed the potency expected from in silico simulations, the novel antagonist (8) with a very satisfying pharmacological and ADMET profile can serve as a new lead structure in further searches for innovative therapy against AD with accompanying symptoms.
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Affiliation(s)
- Sylwia Sudoł-Tałaj
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland; Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, Św. Łazarza 16, PL 31-530, Kraków, Poland
| | - Katarzyna Kucwaj-Brysz
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Sabina Podlewska
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Medicinal Chemistry, Smętna 12, PL 31-343, Kraków, Poland
| | - Rafał Kurczab
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Medicinal Chemistry, Smętna 12, PL 31-343, Kraków, Poland
| | - Grzegorz Satała
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Medicinal Chemistry, Smętna 12, PL 31-343, Kraków, Poland
| | - Barbara Mordyl
- Department of Pharmacobiology, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Monika Głuch-Lutwin
- Department of Pharmacobiology, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Natalia Wilczyńska-Zawal
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Magdalena Jastrzębska-Więsek
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Kinga Czarnota-Łydka
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland; Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, Św. Łazarza 16, PL 31-530, Kraków, Poland
| | - Kinga Kurowska
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Monika Kubacka
- Department of Pharmacodynamics, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Ewa Żesławska
- Institute of Biology and Earth Sciences, Pedagogical University of Krakow, Podchorążych 2, PL 30-084, Kraków, Poland
| | - Wojciech Nitek
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, PL 30-387, Kraków, Poland
| | - Agnieszka Olejarz-Maciej
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Agata Doroz-Płonka
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Anna Partyka
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Gniewomir Latacz
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Anna Wesołowska
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688, Kraków, Poland.
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11
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Pyrih A, Łapiński A, Zięba S, Mizera A, Lesyk R, Gzella AK, Jaskolski M. Proton tautomerism and stereoisomerism in 5-[(dimethylamino)methylidene]-4-[3/4-(trifluoromethylphenyl)amino]-1,3-thiazol-2(5H)-ones: synthesis, crystal structure and spectroscopic studies. Acta Crystallogr C Struct Chem 2023; 79:480-490. [PMID: 37874207 DOI: 10.1107/s2053229623009087] [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: 09/07/2023] [Accepted: 10/16/2023] [Indexed: 10/25/2023] Open
Abstract
5-[(Dimethylamino)methylidene]-4-{[3-(trifluoromethyl)phenyl]amino}-1,3-thiazol-2(5H)-one and the [4-(trifluoromethyl)phenyl]amino derivative, both C13H12F3N3OS, with the trifluoromethyl group substituted at the arene ring at the meta and para positions, were synthesized to study the structural changes associated with proton tautomerism of the amidine system. The studied compounds were found to be in the amine tautomeric form in both the solid and the liquid (dimethyl sulfoxide solutions) phase. In both isomers, the [(trifluoromethyl)phenyl]amino residue assumes a synperiplanar conformation with respect to the thiazolone system, while the 5-[(dimethylamino)methylidene] residue adopts the Z configuration. Density functional theory (DFT) calculations correctly predicted that the synperiplanar arrangement is favoured in both isomers. In the crystal, the whole independent molecule of the para compound is disordered over two alternative positions, with occupancy factors of 0.926 (3) and 0.074 (3).
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Affiliation(s)
- Andrii Pyrih
- Department of Crystallography, Faculty of Chemistry, A. Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Andrzej Łapiński
- Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan, Poland
| | - Sylwia Zięba
- Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan, Poland
| | - Adam Mizera
- Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan, Poland
| | - Roman Lesyk
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv 79010, Ukraine
| | - Andrzej K Gzella
- Department of Organic Chemistry, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Mariusz Jaskolski
- Department of Crystallography, Faculty of Chemistry, A. Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
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12
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Lin C, Luan F, Su S, Jiang A, Tan W, Guo Z. Water-soluble fluorine-functionalized chitooligosaccharide derivatives: Synthesis, characterization and antimicrobial activity. Carbohydr Res 2023; 533:108935. [PMID: 37717482 DOI: 10.1016/j.carres.2023.108935] [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: 07/13/2023] [Revised: 08/27/2023] [Accepted: 09/01/2023] [Indexed: 09/19/2023]
Abstract
In this work, a series of water-soluble fluorine-functionalized chitooligosaccharide derivatives were synthesized by conjugating nicotinic acid to chitooligosaccharide via nicotinylation reaction, followed by nucleophilic reaction with ethyl bromide, benzyl bromide and fluorobenzyl bromides. Synthesized derivatives were identified structurally by Fourier Transform Infrared Spectroscopy and Nuclear Magnetic Resonance. In addition, the antibacterial activities of chitooligosaccharide derivatives against several disease-causing bacteria were assessed by the broth dilution method and Kirby-Bauer method, the mycelium growth rate method was used to assessing the antifungal properties of samples against three plant-threatening fungi. Among the chitooligosaccharide derivatives, those containing benzyl or fluorobenzyl exhibited noteworthy antimicrobial activity. Specifically, the chitooligosaccharide derivative containing 2,3,4-trifluorobenzyl displayed remarkable antimicrobial activity, with an inhibition index of 84.35% against Botryis cinerea at a concentration of 1.0 mg/mL. Additionally, its MIC value against Staphylococcus aureus was found to be 0.03125 mg/mL, while the MBC value was determined to be 0.0625 mg/mL. The findings of the study revealed that the incorporation of pyridinium cations and fluorine into the chitooligosaccharide backbone may play a critical role in strengthening its ability to combat harmful microorganisms. Furthermore, the cytotoxicities of chitooligosaccharide derivatives against Huvec cells were evaluated through MTT assay, and all samples were not toxic. As a consequence, the water-soluble fluorine-functionalized chitooligosaccharide derivatives possessed rapid microbicidal properties and good biocompatibility, which provided promising prospects for the development of a more effective and environmentally friendly antimicrobial agent.
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Affiliation(s)
- Conghao Lin
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China; College of Life Sciences, Yantai University, Yantai, 264005, China
| | - Fang Luan
- Naval Architecture and Port Engineering College, Shandong Jiaotong University, Weihai, 264200, China
| | - Shengjia Su
- Shandong Saline-Alkali Land Modern Agriculture Company, Dongying, 257300, China
| | - Aili Jiang
- College of Life Sciences, Yantai University, Yantai, 264005, China
| | - Wenqiang Tan
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China.
| | - Zhanyong Guo
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China.
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13
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Zhang G, Li C, Li Y, Chen D, Li Z, Wang Z, Ouyang G. Design, Synthesis, and Mechanism of Novel 9-Aliphatic Amine Tryptanthrin Derivatives against Phytopathogenic Bacteria. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:14232-14242. [PMID: 37749804 DOI: 10.1021/acs.jafc.3c03738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Taking inspiration from the use of natural product-derived bactericide candidates in drug discovery, a series of novel 9-aliphatic amine tryptanthrin derivatives were designed, synthesized, and evaluated for their biological activity against three plant bacteria. The majority of these compounds exhibited excellent antibacterial activity in vitro. Compound 7c exhibited a significantly superior bacteriostatic effect against Xanthomonas axonopodis pv Citri (Xac), Xanthomonas oryzae pv Oryzae (Xoo), and Pseudomonas syringae pv Actinidiae (Psa) with final corrected EC50 values of 0.769, 1.29, and 15.5 μg/mL, respectively, compared to the commercial pesticide thiodiazole copper which had EC50 values of 58.8, 70.9, and 91.9 μg/mL. Preliminary mechanism studies have demonstrated that 7c is capable of altering bacterial morphology, inducing reactive oxygen species accumulation, promoting bacterial cell apoptosis, inhibiting normal cell growth, and affecting cell membrane permeability. Moreover, in vivo experiments have substantiated the effectiveness of 7c as a therapeutic and defensive agent against the citrus canker. The proteomic analysis has unveiled that the major disparities are located within the bacterial secretion system pathway, which hinders membrane transportation. These discoveries imply that 7c could be an auspicious prototype for developing antiphytopathogenic bacterial agents.
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Affiliation(s)
- Guanglong Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Chengpeng Li
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, Guizhou 550025, China
| | - Yan Li
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, Guizhou 550025, China
| | - Danping Chen
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, Guizhou 550025, China
| | - Zhuirui Li
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, Guizhou 550025, China
| | - Zhenchao Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guizhou University, Guiyang, Guizhou 550025, China
| | - Guiping Ouyang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guizhou University, Guiyang, Guizhou 550025, China
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14
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Cavalcante CHL, Almeida-Neto FWDQ, da Rocha MN, Bandeira PN, de Menezes RRPPB, Paula Magalhães E, Sampaio TL, Marinho ES, Marinho MM, Maria Costa Martins A, Dos Santos HS. Antichagasic evaluation, molecular docking and ADMET properties of the chalcone (2 E)-3-(2-fluorophenyl)-1-(2-hydroxy- 3,4,6-trimethoxyphenyl)prop-2-en-1-one against Trypanosoma cruzi. J Biomol Struct Dyn 2023; 41:7463-7479. [PMID: 36120936 DOI: 10.1080/07391102.2022.2123394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 09/02/2022] [Indexed: 10/14/2022]
Abstract
Characterized as a neglected disease, Chagas disease is an infection that, in the current scenario, affects about 8 million people per year, with a higher incidence in underdeveloped countries, Chagas is responsible for physiological disabilities that result in impacts that are slightly reflected in world socioeconomic stability. Although treatments are based on drugs such as Benznidazole, the pathology lacks a continuous treatment method with low toxicological incidence. The present study estimates the anti-chagasic activity of the synthetic chalcone CPN2F based on the alignment between in vitro tests and structural classification in silico studies, molecular docking and ADMET studies. The in vitro tests showed a reduction in the protozoan metabolism in host cells (LLC-MK2). At the same time, the molecular docking models evaluate this growth inhibition through the synergistic effect associated with Benznida- zole against validated therapeutic target key stages (Cruzaine TcGAPDH and Trypanothione reductase) of the Trypanosoma cruzi development cycle. The in silico prediction results reveal an alignment between pharmacokinetic attributes, such as renal absorption and release, which allow the preparation of CPN2F as an antichagasic drug with a low incidence of organic toxicity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Carlos Henrique Leitão Cavalcante
- Postgraduate Program in Biotechnology - PPGB-Renorbio, State University of Ceara, Fortaleza, CE, Brazil
- Federal Institute of Education and Technology of Ceara, Maracanau, CE, Brazil
| | | | - Matheus Nunes da Rocha
- Center for Science and Technology, Postgraduate Program in Natural Sciences, State University of Ceará, Fortaleza, CE, Brazil
| | - Paulo Nogueira Bandeira
- Center for Exact Sciences and Technology, State University of Vale do Acaraú, Sobral, CE, Brazil
| | | | - Emanuel Paula Magalhães
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Tiago Lima Sampaio
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Márcia Machado Marinho
- Center for Exact Sciences and Technology, State University of Vale do Acaraú, Sobral, CE, Brazil
| | - Alice Maria Costa Martins
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Hélcio Silva Dos Santos
- Postgraduate Program in Biotechnology - PPGB-Renorbio, State University of Ceara, Fortaleza, CE, Brazil
- Center for Science and Technology, Postgraduate Program in Natural Sciences, State University of Ceará, Fortaleza, CE, Brazil
- Center for Exact Sciences and Technology, State University of Vale do Acaraú, Sobral, CE, Brazil
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15
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O'Hagan D. The Emergence and Properties of Selectively Fluorinated 'Janus' Cyclohexanes. CHEM REC 2023; 23:e202300027. [PMID: 37016509 DOI: 10.1002/tcr.202300027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/14/2023] [Indexed: 04/06/2023]
Abstract
This account describes the evolution of a research programme that started by linking fluoromethylene (-CHF-) groups along aliphatic chains and then progressing to alicyclic rings with contiguous fluorine atoms. Different stereoisomers of aliphatic chains tend to adopt low polarity conformations. In order to force polar conformations, the programme began to address ring systems and in particular cyclohexanes, to restrain conformational freedom and co-aligned C-F bonds. The flagship molecule, all-cis-1,2,3,4,5,6-hexafluorocyclohexane 7, emerged to be the most polar aliphatic compound recorded. The polarity arises because there are three co-aligned triaxial C-F bonds and the six fluorines occupy one face of the ring. Conversely the electropositive hydrogens occupy the other face. These have been termed Janus face cyclohexanes after the Roman god with two faces. The review outlines progress by our group and others in preparing derivatives of the parent cyclohexane 7, in order to explore properties and potential applications of these Janus cyclohexanes.
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Affiliation(s)
- David O'Hagan
- University of St Andrews, St. Andrews, United Kingdom
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16
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Mkrtchyan S, Shkoor M, Sarfaraz S, Ayub K, Iaroshenko VO. Mechanochemical arylative detrifluoromethylation of trifluoromethylarenes. Org Biomol Chem 2023; 21:6549-6555. [PMID: 37523214 DOI: 10.1039/d3ob00787a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
The stoichiometric defluorinative functionalization of ArCF3 is a conceptually appealing research target. It enables the challenging late-stage functionalization of CF3-containing aromatic molecules and contributes to the remedy of environmental risks resulting from the accumulation of relatively inert ArCF3-containing molecules. Similarly, Ar-CN bond features limit their utilization in cross-coupling reactions. Thus, the employment of benzonitriles in decyanative Suzuki-Miyaura type coupling remains in high demand in the field of C-C bond formation. Herein, we report mechanochemically induced and ytterbium oxide (Yb2O3)-mediated defluorinative cyanation of trifluoromethylarenes. In addition, we describe a facile mechanochemically facilitated and nickel-catalyzed decyanative arylation of benzonitriles to access biphenyls. Combining both processes in a one-pot multicomponent protocol to achieve a concise direct arylative detrifluoromethylation of ArCF3 is described herein. This work is the first hitherto realization of C-C coupling with CF3 as a formal leaving group.
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Affiliation(s)
- Satenik Mkrtchyan
- Department of Chemistry, Faculty of Natural Sciences, Matej Bel University, Tajovského 40, 97401, Banska Bystrica, Slovakia.
| | - Mohanad Shkoor
- Department of Chemistry and Earth Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Sehrish Sarfaraz
- Department of Chemistry, COMSATS University, Abbottabad Campus, Abbottabad, KPK, 22060, Pakistan
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University, Abbottabad Campus, Abbottabad, KPK, 22060, Pakistan
| | - Viktor O Iaroshenko
- Department of Chemistry, Faculty of Natural Sciences, Matej Bel University, Tajovského 40, 97401, Banska Bystrica, Slovakia.
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17
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Shabir G, Saeed A, Zahid W, Naseer F, Riaz Z, Khalil N, Muneeba, Albericio F. Chemistry and Pharmacology of Fluorinated Drugs Approved by the FDA (2016-2022). Pharmaceuticals (Basel) 2023; 16:1162. [PMID: 37631077 PMCID: PMC10458641 DOI: 10.3390/ph16081162] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Fluorine is characterized by high electronegativity and small atomic size, which provide this molecule with the unique property of augmenting the potency, selectivity, metabolic stability, and pharmacokinetics of drugs. Fluorine (F) substitution has been extensively explored in drug research as a means of improving biological activity and enhancing chemical or metabolic stability. Selective F substitution onto a therapeutic or diagnostic drug candidate can enhance several pharmacokinetic and physicochemical properties such as metabolic stability and membrane permeation. The increased binding ability of fluorinated drug target proteins has also been reported in some cases. An emerging line of research on F substitution has been addressed by using 18F as a radiolabel tracer atom in the extremely sensitive methodology of positron emission tomography (PET) imaging. This review aims to report on the fluorinated drugs approved by the US Food and Drug Administration (FDA) from 2016 to 2022. It cites selected examples from a variety of therapeutic and diagnostic drugs. FDA-approved drugs in this period have a variety of heterocyclic cores, including pyrrole, pyrazole, imidazole, triazole, pyridine, pyridone, pyridazine, pyrazine, pyrimidine, triazine, purine, indole, benzimidazole, isoquinoline, and quinoline appended with either F-18 or F-19. Some fluorinated oligonucleotides were also authorized by the FDA between 2019 and 2022.
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Affiliation(s)
- Ghulam Shabir
- Department of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan;
| | - Aamer Saeed
- Department of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan;
| | - Wajeeha Zahid
- Department of Chemistry, Government Graduate College Toba Tek Singh, Punjab 36050, Pakistan; (W.Z.); (F.N.); (Z.R.); (N.K.); (M.)
| | - Fatima Naseer
- Department of Chemistry, Government Graduate College Toba Tek Singh, Punjab 36050, Pakistan; (W.Z.); (F.N.); (Z.R.); (N.K.); (M.)
| | - Zainab Riaz
- Department of Chemistry, Government Graduate College Toba Tek Singh, Punjab 36050, Pakistan; (W.Z.); (F.N.); (Z.R.); (N.K.); (M.)
| | - Nafeesa Khalil
- Department of Chemistry, Government Graduate College Toba Tek Singh, Punjab 36050, Pakistan; (W.Z.); (F.N.); (Z.R.); (N.K.); (M.)
| | - Muneeba
- Department of Chemistry, Government Graduate College Toba Tek Singh, Punjab 36050, Pakistan; (W.Z.); (F.N.); (Z.R.); (N.K.); (M.)
| | - Fernando Albericio
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
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18
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Wei J, Ning LW, Li Y. Diastereoselective addition of 2-alkoxy-2-fluoroacetate to N-(tert‑butylsulfinyl)imines: Synthesis of α-alkoxy-α-fluoro-β-amino acids. J Fluor Chem 2023. [DOI: 10.1016/j.jfluchem.2023.110118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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19
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Escolano M, Gaviña D, Díaz-Oltra S, Sánchez-Roselló M, Del Pozo C. Enantioselective Synthesis of Fluorinated Indolizidinone Derivatives. Org Lett 2023; 25:3222-3227. [PMID: 37125898 DOI: 10.1021/acs.orglett.3c00903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The enantioselective synthesis of fluorinated indolizidinone derivatives has been developed. The process involved an enantioselective intramolecular aza-Michael reaction of conjugated amides bearing a pendant α,β-unsaturated ketone moiety, catalyzed by the (S)-TRIP-derived phosphoric acid, followed by dimethyltitanocene methylenation and ring closing metathesis (RCM). Final indolizidine-derived products comprise a fluorine-containing tetrasubstituted double bond generated by the RCM reaction, which is a challenging task. The whole synthetic sequence took place in acceptable overall yields with excellent enantioselectivities.
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Affiliation(s)
- Marcos Escolano
- Department of Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Daniel Gaviña
- Department of Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Santiago Díaz-Oltra
- Department of Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - María Sánchez-Roselló
- Department of Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Carlos Del Pozo
- Department of Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
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20
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Pietruś W, Stypik M, Zagozda M, Banach M, Gurba-Bryśkiewicz L, Maruszak W, Leniak A, Kurczab R, Ochal Z, Dubiel K, Wieczorek M. Tuning the Biological Activity of PI3K δ Inhibitor by the Introduction of a Fluorine Atom Using the Computational Workflow. Molecules 2023; 28:molecules28083531. [PMID: 37110764 PMCID: PMC10145010 DOI: 10.3390/molecules28083531] [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: 02/18/2023] [Revised: 04/02/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
As a member of the class I PI3K family, phosphoinositide 3-kinase δ (PI3Kδ) is an important signaling biomolecule that controls immune cell differentiation, proliferation, migration, and survival. It also represents a potential and promising therapeutic approach for the management of numerous inflammatory and autoimmune diseases. We designed and assessed the biological activity of new fluorinated analogues of CPL302415, taking into account the therapeutic potential of our selective PI3K inhibitor and fluorine introduction as one of the most frequently used modifications of a lead compound to further improve its biological activity. In this paper, we compare and evaluate the accuracy of our previously described and validated in silico workflow with that of the standard (rigid) molecular docking approach. The findings demonstrated that a properly fitted catalytic (binding) pocket for our chemical cores at the induced-fit docking (IFD) and molecular dynamics (MD) stages, along with QM-derived atomic charges, can be used for activity prediction to better distinguish between active and inactive molecules. Moreover, the standard approach seems to be insufficient to score the halogenated derivatives due to the fixed atomic charges, which do not consider the response and indictive effects caused by fluorine. The proposed computational workflow provides a computational tool for the rational design of novel halogenated drugs.
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Affiliation(s)
- Wojciech Pietruś
- Department of Medicinal Chemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smetna 12, 31-343 Krakow, Poland
- Celon Pharma S.A., ul. Marymoncka 15, 05-152 Kazuń Nowy, Poland
| | - Mariola Stypik
- Celon Pharma S.A., ul. Marymoncka 15, 05-152 Kazuń Nowy, Poland
- Faculty of Chemistry, Warsaw University of Technology, ul. Nowakowskiego 3, 00-664 Warsaw, Poland
| | - Marcin Zagozda
- Celon Pharma S.A., ul. Marymoncka 15, 05-152 Kazuń Nowy, Poland
| | - Martyna Banach
- Celon Pharma S.A., ul. Marymoncka 15, 05-152 Kazuń Nowy, Poland
| | | | | | | | - Rafał Kurczab
- Department of Medicinal Chemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smetna 12, 31-343 Krakow, Poland
| | - Zbigniew Ochal
- Faculty of Chemistry, Warsaw University of Technology, ul. Nowakowskiego 3, 00-664 Warsaw, Poland
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21
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Luo HL, Li WX, Bai XY, Meng QG, Hou Y. Crystal structure of ( E)-7-fluoro-2-(4-morpholinobenzylidene)-3,4-dihydronaphthalen-1(2 H)-one, C 21H 20FNO 2. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2023-0053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Abstract
C
21
H
20
F
N
O
2
${\mathrm{C}}_{21}{\mathrm{H}}_{20}\mathrm{F}\mathrm{N}{\mathrm{O}}_{2}$
, triclinic, P1̄ (no. 2), a = 9.2201(7) Å, b = 9.3195(8) Å, c = 11.4012(9) Å, α =
103.880
(
7
)
°
$103.880(7){}^{\circ}$
, β =
100.987
(
7
)
°
$100.987(7){}^{\circ}$
, γ =
115.090
(
7
)
°
$115.090(7){}^{\circ}$
, V = 1796.31(20)
Å
3
${\mathrm{\mathring{\text{A}}}}^{3}$
, Z = 2,
R
g
t
${R}_{gt}$
(F) = 0.0421,
w
R
r
e
f
$w{R}_{ref}$
(
F
2
${\mathrm{F}}^{2}$
) = 0.1136, T = 293 K.
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Affiliation(s)
- Han-Lin Luo
- School of Basic Medical Sciences , Binzhou Medical University , Yantai , 264003 , P. R. China
| | - Wen-Xuan Li
- School of Pharmacy , Binzhou Medical University , Yantai , 264003 , P. R. China
| | - Xian-Yong Bai
- School of Basic Medical Sciences , Binzhou Medical University , Yantai , 264003 , P. R. China
| | - Qing-Guo Meng
- School of Pharmacy , Yantai University , Yantai 264005 , P. R. China
| | - Yun Hou
- School of Basic Medical Sciences , Binzhou Medical University , Yantai , 264003 , P. R. China
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22
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Ramkumar N, Baumane L, Zacs D, Veliks J. Merging Copper(I) Photoredox Catalysis and Iodine(III) Chemistry for the Oxy-monofluoromethylation of Alkenes. Angew Chem Int Ed Engl 2023; 62:e202219027. [PMID: 36692216 DOI: 10.1002/anie.202219027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 01/25/2023]
Abstract
A simple process for the oxy-monofluoromethylation of alkenes is described. In combination with visible-light copper(I) photoredox catalysis, an easily accessible iodine(III) reagent containing monofluoroacetoxy ligands serves as a powerful source of a monofluoromethyl (CH2 F) radical, enabling the step economical synthesis of γ-fluoro-acetates from a broad range of olefinic substrates under mild conditions. Applications to late-stage diversification of alkenes derived from complex molecules, amino acids and the synthesis of fluoromethylated heterocycles are also demonstrated.
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Affiliation(s)
- Nagarajan Ramkumar
- Latvian Institute of Organic Synthesis, Aizkraukles iela 21, LV-1006, Riga, Latvia
| | - Larisa Baumane
- Latvian Institute of Organic Synthesis, Aizkraukles iela 21, LV-1006, Riga, Latvia
| | - Dzintars Zacs
- Institute of Food Safety, Animal Health and Environment "BIOR", Lejupes iela 3, LV-1076, Riga, Latvia
| | - Janis Veliks
- Latvian Institute of Organic Synthesis, Aizkraukles iela 21, LV-1006, Riga, Latvia
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23
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Chang W, Lei Z, Yang Y, Dai S, Feng J, Yang J, Zhang Z. Tandem Reaction of Azide with Isonitrile and TMSC nF m(H): Access to N-Functionalized C-Fluoroalkyl Amidine. Org Lett 2023; 25:1392-1396. [PMID: 36861965 DOI: 10.1021/acs.orglett.3c00125] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
N-Functionalized C-fluoroalkyl amidines are attracting great attention due to their potential in pharmaceuticals. Herein, we report a Pd-catalyzed tandem reaction of azide with isonitrile and fluoroalkylsilane via a carbodiimide intermediate, providing facile access to N-functionalized C-fluoroalkyl amidines. This protocol offers an approach toward not only N-sulphonyl, N-phosphoryl, N-acyl, and N-aryl but also C-CF3, C2F5, and CF2H amidines with a broad substrate scope. The accomplishment of further transformations and Celebrex derivatization in gram scale and biological evaluation reveals the important utility of this strategy.
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Affiliation(s)
- Wenxu Chang
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Zizhen Lei
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Yi Yang
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Sibo Dai
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Jiyao Feng
- College of Plant Protection, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Jun Yang
- College of Plant Protection, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Zhenhua Zhang
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
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24
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Luan MZ, Zhang XF, Yang Y, Meng QG, Hou GG. Anti-inflammatory activity of fluorine-substituted benzo[h]quinazoline-2-amine derivatives as NF-κB inhibitors. Bioorg Chem 2023; 132:106360. [PMID: 36652807 DOI: 10.1016/j.bioorg.2023.106360] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023]
Abstract
Excessive inflammation can cause loss of tissue or organ function, leading to a number of chronic diseases and sometimes even death. Traditional treatment strategies for inflammation have mainly involved steroidal and non-steroidal anti-inflammatory drugs, but both have increasingly prominent side effects. Nuclear factor kappa B (NF-κB) inhibitors with anti-inflammatory properties and low toxicity are a new therapeutic strategy for the treatment of inflammatory diseases. To obtain novel NF-κB inhibitors, a series of 3,4-dihydronaphthalen-1(2H)-one derivatives (DHNs 6a-s), 1,4,5,6-tetrahydrobenzo[h]quinazolin-2-amine derivatives (BQAs 7a-c) and 5,6-dihydrobenzo[h]quinazolin-2-amine derivatives (BQAs 8a-p) were designed and synthesized, and characterized by NMR and HRMS. By evaluating toxicity and anti-inflammatory properties, fluorine-substituted 8c showed more potential anti-inflammatory activity and lower toxicity. 8c significantly reduced the phosphorylation of IκBα and p65, thereby inhibiting the NF-κB signaling pathway. In addition, 8c markedly decreased reactive oxygen species (ROS) production and downregulated the expression of NOD-like receptor pyrin domain-containing protein 3 (NLRP3), apoptosis-associated speck-like protein containing a CARD (ASC) and cysteine aspartate protein hydrolase-1 (caspase-1). Therefore, compound 8c is expected to be a candidate compound for NF-κB inhibition and deserves further research and development.
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Affiliation(s)
- Ming-Zhu Luan
- School of Pharmacy, the Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai 264003, PR China; School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Xiao-Fan Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Yang Yang
- School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, PR China
| | - Qing-Guo Meng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China.
| | - Gui-Ge Hou
- School of Pharmacy, the Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai 264003, PR China.
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25
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Koly HK, Sutradhar K, Rahman MS. Acetylcholinesterase inhibition of Alzheimer's disease: identification of potential phytochemicals and designing more effective derivatives to manage disease condition. J Biomol Struct Dyn 2023; 41:12532-12544. [PMID: 36651199 DOI: 10.1080/07391102.2023.2166992] [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: 07/09/2022] [Accepted: 01/05/2023] [Indexed: 01/19/2023]
Abstract
Alzheimer's disease (AD) is a brain disease characterized by gradual memory loss and cognitive impairments. Acetylcholinesterase (AChE) inhibitors-such as donepezil, memantine, and tacrine-are FDA-approved medications for AD treatment. Due to the lack of their efficacy and higher side effects, many researchers have been searching for effective and safer alternatives. In this study, experimentally proved phytochemicals against brain diseases were screened based on their binding energies to the target site of AChE, pharmacokinetic properties, and drug-likeness. Although some phytochemicals showed higher binding affinities than the control drug (donepezil), they did not show permeability across the blood-brain barrier (BBB). However, berberine, anthocyanin, and diterpene alkaloid can cross the BBB and showed good binding affinities of -10.3, -10.1, and -10.2 kcal/mol, respectively. MD simulation and PCA of the simulation data of the protein and protein-ligand complexes proved that the complexes are stable in the biological environment. A total of 16 derivatives of berberine and 3 derivatives of anthocyanin also showed higher binding energies compared to the binding affinity (-11.5 kcal/mol) of the donepezil. The derivatives were designed by substituting -F, -CF3, -CN, and -NH2, and provided higher docking scores due to increasing of nonbonding interactions. MM/GBSA calculations show that the binding free energies of the best predicted derivatives of diterpene alkaloid, anthocyanin, and berberine (DA22, AC11, and BB40) are -100.4 ± 8.4, -79.3 ± 8.7, and -78.3 ± 10.7 kcal/mol, respectively, with the protein. Overall, this study was successful in finding new, highly effective, and possibly safer inhibitors of AChE.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Hazera Khatun Koly
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, USA
| | - Kakan Sutradhar
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, USA
| | - Md Sajjadur Rahman
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, USA
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26
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Isomeric Activity Cliffs-A Case Study for Fluorine Substitution of Aminergic G Protein-Coupled Receptor Ligands. Molecules 2023; 28:molecules28020490. [PMID: 36677547 PMCID: PMC9863698 DOI: 10.3390/molecules28020490] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/30/2022] [Accepted: 01/01/2023] [Indexed: 01/06/2023] Open
Abstract
Currently, G protein-coupled receptors (GPCRs) constitute a significant group of membrane-bound receptors representing more than 30% of therapeutic targets. Fluorine is commonly used in designing highly active biological compounds, as evidenced by the steadily increasing number of drugs by the Food and Drug Administration (FDA). Herein, we identified and analyzed 898 target-based F-containing isomeric analog sets for SAR analysis in the ChEMBL database-FiSAR sets active against 33 different aminergic GPCRs comprising a total of 2163 fluorinated (1201 unique) compounds. We found 30 FiSAR sets contain activity cliffs (ACs), defined as pairs of structurally similar compounds showing significant differences in affinity (≥50-fold change), where the change of fluorine position may lead up to a 1300-fold change in potency. The analysis of matched molecular pair (MMP) networks indicated that the fluorination of aromatic rings showed no clear trend toward a positive or negative effect on affinity. Additionally, we propose an in silico workflow (including induced-fit docking, molecular dynamics, quantum polarized ligand docking, and binding free energy calculations based on the Generalized-Born Surface-Area (GBSA) model) to score the fluorine positions in the molecule.
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27
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Facile Entry to Pharmaceutically Important 3-Difluoromethyl-quinoxalin-2-ones Enabled by Visible-Light-Driven Difluoromethylation of Quinoxalin-2-ones. Pharmaceuticals (Basel) 2022; 15:ph15121552. [PMID: 36559003 PMCID: PMC9781376 DOI: 10.3390/ph15121552] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/29/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022] Open
Abstract
CF2H moiety has a significant potential utility in drug design and discovery, and the incorporation of CF2H into biologically active molecules represents an important and efficient strategy for seeking lead compounds and drug candidates. On the other hand, quinoxalin-2-one is of great interest to pharmaceutical chemists as a common skeleton frequently occurring in plenty of natural products and bioactive compounds. Herein, we reported a practical and efficient protocol for the synthesis of 3-CF2H-quinoxalin-2-ones. Thus, in the presence of 3 mol% of photocatalyst and S-(difluoromethyl)sulfonium salt as difluoromethyl radical sources, a wide range of quinoxalin-2-ones readily underwent a visible-light redox-catalyzed difluoromethylation reaction, to deliver structurally diverse 3-difluoromethyl-quinoxalin-2-ones. We believe that this would facilitate increasing chances and possibilities for seeking potential lead compounds and drug candidates and further boost the development of fluorine-containing pharmaceuticals.
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28
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Stephenson Clarke J, Douglas LR, Duriez PJ, Balourdas DI, Joerger AC, Khadiullina R, Bulatov E, Baud MGJ. Discovery of Nanomolar-Affinity Pharmacological Chaperones Stabilizing the Oncogenic p53 Mutant Y220C. ACS Pharmacol Transl Sci 2022; 5:1169-1180. [PMID: 36407959 PMCID: PMC9667543 DOI: 10.1021/acsptsci.2c00164] [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: 08/18/2022] [Indexed: 11/28/2022]
Abstract
The tumor suppressor protein p53 is inactivated in the majority of human cancers and remains a prime target for developing new drugs to reactivate its tumor suppressing activity for anticancer therapies. The oncogenic p53 mutant Y220C accounts for approximately 125,000 new cancer cases per annum and is one of the most prevalent p53 mutants overall. It harbors a narrow, mutationally induced pocket at the surface of the DNA-binding domain that destabilizes p53, leading to its rapid denaturation and aggregation. Here, we present the structure-guided development of high-affinity small molecules stabilizing p53-Y220C in vitro, along with the synthetic routes developed in the process, in vitro structure-activity relationship data, and confirmation of their binding mode by protein X-ray crystallography. We disclose two new chemical probes displaying sub-micromolar binding affinity in vitro, marking an important milestone since the discovery of the first small-molecule ligand of Y220C in 2008. New chemical probe JC744 displayed a K d = 320 nM, along with potent in vitro protein stabilization. This study, therefore, represents a significant advance toward high-affinity Y220C ligands for clinical evaluation.
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Affiliation(s)
- Joseph
R. Stephenson Clarke
- School of Chemistry and Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Leon R. Douglas
- Cancer
Research UK, Somers Building, University
Hospital Southampton, Tremona Road, Southampton SO16 6YD, United Kingdom
| | - Patrick J. Duriez
- Centre
for Cancer Immunology, University Hospital
Southampton, Coxford
Road, Southampton SO16
6YD, United Kingdom
| | - Dimitrios-Ilias Balourdas
- Institute
of Pharmaceutical Chemistry, Johann Wolfgang
Goethe University, Max-von-Laue-Straße 9, 60438 Frankfurt am Main, Germany
- Buchmann
Institute for Molecular Life Sciences and Structural Genomics Consortium, Max-von-Laue-Straße 15, 60438 Frankfurt am Main, Germany
| | - Andreas C. Joerger
- Institute
of Pharmaceutical Chemistry, Johann Wolfgang
Goethe University, Max-von-Laue-Straße 9, 60438 Frankfurt am Main, Germany
- Buchmann
Institute for Molecular Life Sciences and Structural Genomics Consortium, Max-von-Laue-Straße 15, 60438 Frankfurt am Main, Germany
| | - Raniya Khadiullina
- Institute
of Fundamental Medicine and Biology, Kazan
Federal University, Kazan 420008, Russia
| | - Emil Bulatov
- Institute
of Fundamental Medicine and Biology, Kazan
Federal University, Kazan 420008, Russia
| | - Matthias G. J. Baud
- School of Chemistry and Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
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29
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Kulikova NA, Solovyova AA, Perminova IV. Interaction of Antibiotics and Humic Substances: Environmental Consequences and Remediation Prospects. Molecules 2022; 27:molecules27227754. [PMID: 36431855 PMCID: PMC9699543 DOI: 10.3390/molecules27227754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 11/12/2022] Open
Abstract
The occurrence and distribution of antibiotics in the environment has received increasing attention due to their potential adverse effects on human health and ecosystems. Humic substances (HS) influence the mobility, reactivity, and bioavailability of antibiotics in the environment significantly due to their interaction. As a result, HS can affect the dissemination of antibiotic-resistance genes, which is one of the main problems arising from contamination with antibiotics. The review provides quantitative data on the binding of HS with fluoroquinolones, macrolides, sulfonamides, and tetracyclines and reports the proposed mechanisms of their interaction. The main issues of the quantification of antibiotic-HS interaction are discussed, which are a development of standard approaches and the accumulation of a dataset using a standard methodology. This would allow the implementation of a meta-analysis of data to reveal the patterns of the binding of antibiotics to HS. Examples of successful development of humic-based sorbents for fluoroquinolone and tetracycline removal from environmental water systems or polluted wastewaters were given. Data on the various effects of HS on the dissemination of antibiotic-resistance genes (ARGs) were summarized. The detailed characterization of HS properties as a key point of assessing the environmental consequences of the formation of antibiotic-HS complexes, such as the dissemination of antibiotic resistance, was proposed.
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Affiliation(s)
- Natalia A. Kulikova
- Department of Soil Science, Lomonosov Moscow State University, Leninskiye Gory 1-12, 119991 Moscow, Russia
- Bach Institute of Biochemistry, Fundamentals of Biotechnology Federal Research Center, Russian Academy of Sciences, pr. Leninskiy 33, 119071 Moscow, Russia
- Correspondence: (N.A.K.); (I.V.P.); Tel.: +7-495-939-55-46 (N.A.K. & I.V.P.)
| | - Alexandra A. Solovyova
- Department of Soil Science, Lomonosov Moscow State University, Leninskiye Gory 1-12, 119991 Moscow, Russia
| | - Irina V. Perminova
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia
- Correspondence: (N.A.K.); (I.V.P.); Tel.: +7-495-939-55-46 (N.A.K. & I.V.P.)
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30
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Politanskaya L, Wang J, Troshkova N, Chuikov I, Bagryanskaya I. One-pot synthesis of fluorinated 2-arylchroman-4-one derivatives from 2-(triisopropylsilyl)ethynylphenols and aromatic aldehydes. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2022.110045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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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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32
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Chemistry of Pentafluorosulfanyl Derivatives and Related Analogs: From Synthesis to Applications. Chemistry 2022; 28:e202201491. [DOI: 10.1002/chem.202201491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Indexed: 12/23/2022]
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33
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Senatore R, Malik M, Pace V. Fluoroiodomethane: A CH2F‐Moiety Delivering Agent Suitable for Nucleophilic‐, Electrophilic‐ and Radical‐Harnessed Operations. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200493] [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]
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Truong HB, Huy BT, Ray SK, Gyawali G, Lee YI, Cho J, Hur J. Magnetic visible-light activated photocatalyst ZnFe 2O 4/BiVO 4/g-C 3N 4 for decomposition of antibiotic lomefloxacin: Photocatalytic mechanism, degradation pathway, and toxicity assessment. CHEMOSPHERE 2022; 299:134320. [PMID: 35364082 DOI: 10.1016/j.chemosphere.2022.134320] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/11/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
Magnetic ZnFe2O4/BiVO4/g-C3N4 (ZBC) composites were prepared via a facile hydrothermal and calcination method for the degradation of a representative antibiotics lomefloxacin (LFX) under visible light irradiation. The optimal photocatalyst ZBC-10 with a ZnFe2O4:BiVO4:g-C3N4 mass ratio of 1:8:10 performed 96.1% removal of LFX after 105 min of illumination. The excellent performance is ascribed to the effective construction of heterojunctions and its capacity to form a double Z-scheme charge transmission pathway among the hosts in ZBC-10. The composite enhanced the separation and migration of photoexcited charge carriers and the effective generation of multiple active radicals including ·OH, ·O2-, and 1O2. The LFX degradation process, identified based on an integrated HPLC-Q-TOF-MS analysis and density functional theory computation of the Fukui indices, comprised of three pathways initiated by the opening of the piperazinyl ring, separation of piperazinyl and quinoline moieties, and cleavage of the pyridine ring on the quinoline moieties. Ecotoxicological evaluation confirmed the reduced toxicity of transformation intermediates over photocatalysis. Convenient magnetic recovery, high performance, and high recyclability made ZBC-10 a promising visible-light-activated photocatalyst for practical implementation in eliminating antibiotics from wastewater.
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Affiliation(s)
- Hai Bang Truong
- Department of Environment and Energy, Sejong University, Seoul, 05006, South Korea
| | - Bui The Huy
- Department of Materials Convergence and System Engineering, Changwon National University, Changwon, 51140, South Korea
| | - Schindra Kumar Ray
- Department of Environment and Energy, Sejong University, Seoul, 05006, South Korea
| | - Gobinda Gyawali
- Department of Fusion Science and Technology, Sun Moon University, Asan, 31460, South Korea
| | - Yong-Ill Lee
- Department of Materials Convergence and System Engineering, Changwon National University, Changwon, 51140, South Korea
| | - Jinwoo Cho
- Department of Environment and Energy, Sejong University, Seoul, 05006, South Korea
| | - Jin Hur
- Department of Environment and Energy, Sejong University, Seoul, 05006, South Korea.
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Fluorinated Analogues of Lepidilines A and C: Synthesis and Screening of Their Anticancer and Antiviral Activity. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27113524. [PMID: 35684460 PMCID: PMC9181938 DOI: 10.3390/molecules27113524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/24/2022] [Accepted: 05/27/2022] [Indexed: 11/16/2022]
Abstract
Starting with fluorinated benzylamines, a series of 2-unsubstituted imidazole N-oxides was prepared and subsequently deoxygenated in order to prepare the corresponding imidazoles. The latter were treated with benzyl halides yielding imidazolium salts, which are considered fluorinated analogues of naturally occurring imidazolium alkaloids known as lepidilines A and C. A second series of oxa-lepidiline analogues was obtained by O-benzylation of the initially synthetized imidazole N-oxides. Both series of imidazolium salts were tested as anticancer and antiviral agents. The obtained results demonstrated that the introduction of a fluorine atom, fluoroalkyl or fluoroalkoxy substituents (F, CF3 or OCF3) amplifies cytotoxic properties, whereas the cytotoxicity of some fluorinated lepidilines is promising in the context of drug discovery. All studied compounds revealed a lack of antiviral activity against the investigated viruses in the nontoxic concentrations.
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Bhat AP, Mundhenke TF, Whiting QT, Peterson AA, Pomerantz WC, Arnold WA. Tracking Fluorine during Aqueous Photolysis and Advanced UV Treatment of Fluorinated Phenols and Pharmaceuticals Using a Combined 19F-NMR, Chromatography, and Mass Spectrometry Approach. ACS ENVIRONMENTAL AU 2022; 2:242-252. [PMID: 37102144 PMCID: PMC10114624 DOI: 10.1021/acsenvironau.1c00057] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fluorine incorporation into organic molecules has increased due to desirable changes in the molecular physiochemical properties. Common fluorine motifs include: aliphatic fluorines and -CF3, or -F containing groups bonded directly onto an aromatic (Ar-CF3 and Ar-F) or heteroaromatic ring. Photolysis of these compounds, either in natural or engineered systems, is a potential source of new fluorinated byproducts. Given the potential persistence and toxicity of fluorinated byproducts, monitoring of product formation during photolysis of various fluorinated motifs is needed. 19F-NMR is a means to detect and quantify these species. Ar-CF3 and Ar-F model compounds (2-, 3-, and 4-(trifluoromethyl)phenol, 2-, 3-, 4-fluorophenol, and 2,6-, 3,5-difluorophenol) were photolyzed under a variety of aqueous conditions: pH 5, pH 7, pH 10, 1 mM H2O2 at pH 7 to form •OH, and 0.5 mM SO3 2- at pH 10 to form eaq -. Pharmaceuticals with the Ar-CF3 (fluoxetine) and Ar-F plus pyrazole-CF3 (sitagliptin) motifs were treated similarly. Parent molecule concentrations were monitored with high pressure liquid chromatography with a UV detector. Fluorine in the parent and product molecules was quantified with 19F-NMR and complete fluorine mass balances were obtained. High resolution mass spectrometry was used to further explore product identities. The major product for Ar-F compounds was fluoride. The Ar-CF3 model compounds led to fluoride and organofluorine products dependent on motif placement and reaction conditions. Trifluoroacetic acid was a product of 4-(trifluoromethyl)phenol and fluoxetine. Additional detected fluoxetine products identified using mass spectrometry resulted from addition of -OH to the aromatic ring, but a dealkylation product could not be distinguished from fluoxetine by 19F-NMR. Sitagliptin formed multiple products that all retained the pyrazole-CF3 motif while the Ar-F motif produced fluoride. 19F-NMR, mass spectrometry, and chromatography methods provide complementary information on the formation of fluorinated molecules by modification or fragmentation of the parent structure during photolysis, allowing screening for fluorinated photoproducts and development of fluorine mass balances.
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Affiliation(s)
- Akash P. Bhat
- Department of Civil, Environmental, and Geo- Engineering University of Minnesota, 500 Pillsbury Dr. SE, Minneapolis, Minnesota 55455, United States
| | - Thomas F. Mundhenke
- Department of Civil, Environmental, and Geo- Engineering University of Minnesota, 500 Pillsbury Dr. SE, Minneapolis, Minnesota 55455, United States
| | - Quinn T. Whiting
- Department of Civil, Environmental, and Geo- Engineering University of Minnesota, 500 Pillsbury Dr. SE, Minneapolis, Minnesota 55455, United States
| | - Alicia A. Peterson
- Department of Chemistry, College of Saint Benedict and Saint John’s University, 37 South College Avenue, St. Joseph, Minnesota 56374, United States
| | - William C.K. Pomerantz
- Department of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - William A. Arnold
- Department of Civil, Environmental, and Geo- Engineering University of Minnesota, 500 Pillsbury Dr. SE, Minneapolis, Minnesota 55455, United States
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Lu M, Toptygin D, Xiang Y, Shi Y, Schwieters CD, Lipinski EC, Ahn J, Byeon IJL, Gronenborn AM. The Magic of Linking Rings: Discovery of a Unique Photoinduced Fluorescent Protein Crosslink. J Am Chem Soc 2022; 144:10809-10816. [PMID: 35574633 PMCID: PMC9233106 DOI: 10.1021/jacs.2c02054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
![]()
Fluorosubstituted tryptophans serve
as valuable probes for fluorescence
and nuclear magnetic resonance (NMR) studies of proteins. Here, we
describe an unusual photoreactivity introduced by replacing the single
tryptophan in cyclophilin A with 7-fluoro-tryptophan. UV exposure
at 282 nm defluorinates 7-fluoro-tryptophan and crosslinks it to a
nearby phenylalanine, generating a bright fluorophore. The crosslink-containing
fluorescent protein possesses a large quantum yield of ∼0.40
with a fluorescence lifetime of 2.38 ns. The chemical nature of the
crosslink and the three-dimensional protein structure were determined
by mass spectrometry and NMR spectroscopy. To the best of our knowledge,
this is the first report of a Phe–Trp crosslink in a protein.
Our finding may break new ground for developing novel fluorescence
probes and for devising new strategies to exploit aromatic crosslinks
in proteins.
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Affiliation(s)
- Manman Lu
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, United States
- Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, United States
| | - Dmitri Toptygin
- Department of Biology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Yufei Xiang
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Yi Shi
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Charles D. Schwieters
- Computational Biomolecular Magnetic Resonance Core, Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892-0520, United States
| | - Emma C. Lipinski
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, United States
| | - Jinwoo Ahn
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, United States
- Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, United States
| | - In-Ja L. Byeon
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, United States
- Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, United States
| | - Angela M. Gronenborn
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, United States
- Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, United States
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Soares JV, Dal Poggetto G, Viesser RV, Couto UR, Tormena CF. Stereoelectronic interactions: A booster for 4 J HF transmission. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2022; 60:481-488. [PMID: 35023222 DOI: 10.1002/mrc.5248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/04/2022] [Accepted: 01/10/2022] [Indexed: 05/21/2023]
Abstract
Long-range proton-fluorine coupling constants (n JHF ) are helpful for the structure elucidation of fluorinated molecules. However, their magnitude and sign can change with the relative position of coupled nuclei and the presence of substituents. Here, trans-4-tert-butyl-2-fluorocyclohexanone was used as a model compound for the study of the transmission of 4 JHF . In this compound, the 4 JH6axF was measured to be +5.1 Hz, which is five times larger than the remaining 4 JHF in the same molecule (4 JH4F = +1.0 Hz and 4 JH6eqF = +1.0 Hz). Through a combination of experimental data, natural bond orbital (NBO) and natural J-coupling (NJC) analyses, we observed that stereoelectronic interactions involving the π system of the carbonyl group are involved in the transmission pathway for the 4 JH6axF . Interactions containing the π system as an electron acceptor (e.g., σC6H6ax → π*C═O and σCF → π*C═O ) increase the value of the 4 JH6axF , while the interaction of the π system as an electron donor (e.g., πC═O → σ*CF ) decreases it. Additionally, the carbonyl group was shown not to be part of the transmission pathway of the diequatorial 4 JH6eqF coupling in cis-4-tert-butyl-2-fluorocyclohexanone, revealing that there is a crucial symmetry requirement that must be fulfilled for the π system to influence the value of the 4 JHF in these systems.
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Affiliation(s)
- João Vitor Soares
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas, Brazil
| | | | - Renan V Viesser
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas, Brazil
| | - Uenifer R Couto
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas, Brazil
| | - Cláudio F Tormena
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas, Brazil
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Kostelidou A, Perdih F, Kljun J, Dimou F, Kalogiannis S, Turel I, Psomas G. Metal(II) Complexes of the Fluoroquinolone Fleroxacin: Synthesis, Characterization and Biological Profile. Pharmaceutics 2022; 14:pharmaceutics14050898. [PMID: 35631484 PMCID: PMC9144902 DOI: 10.3390/pharmaceutics14050898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/09/2022] [Accepted: 04/13/2022] [Indexed: 02/04/2023] Open
Abstract
A series of complexes of divalent transition metals (Cu(II), Mn(II), Zn(II), Co(II) and Ni(II)) with the quinolone antibacterial agent fleroxacin, in the absence or presence of an α-diimine such as 2,2′-bipyridine, 1,10-phenanthroline or 2,2′-bipyridylamine, were prepared and characterized. The complexes were characterized by various physicochemical and spectroscopic techniques and by single-crystal X-ray crystallography. The in vitro antibacterial activity of the complexes was studied against the bacterial strains Staphylococcus aureus, Bacillus subtilis and Xanthomonas campestris and was higher than that of free quinolone. The affinity of the complexes for bovine and human serum albumin was studied by fluorescence emission spectroscopy and the determined binding constants showed tight and reversible binding to the albumins. The interaction of the complexes with calf-thymus DNA was studied by various techniques, which showed that intercalation was the most plausible mode of interaction.
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Affiliation(s)
- Alexandra Kostelidou
- Department of General and Inorganic Chemistry, Faculty of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece;
| | - Franc Perdih
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia; (F.P.); (J.K.)
| | - Jakob Kljun
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia; (F.P.); (J.K.)
| | - Foteini Dimou
- Department of Nutritional Sciences and Dietetics, International Hellenic University, GR-57400 Thessaloniki, Greece; (F.D.); (S.K.)
| | - Stavros Kalogiannis
- Department of Nutritional Sciences and Dietetics, International Hellenic University, GR-57400 Thessaloniki, Greece; (F.D.); (S.K.)
| | - Iztok Turel
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia; (F.P.); (J.K.)
- Correspondence: (I.T.); (G.P.)
| | - George Psomas
- Department of General and Inorganic Chemistry, Faculty of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece;
- Correspondence: (I.T.); (G.P.)
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Bum-Erdene K, Collins PM, Hugo MW, Tarighat SS, Fei F, Kishor C, Leffler H, Nilsson UJ, Groffen J, Grice ID, Heisterkamp N, Blanchard H. Novel Selective Galectin-3 Antagonists Are Cytotoxic to Acute Lymphoblastic Leukemia. J Med Chem 2022; 65:5975-5989. [DOI: 10.1021/acs.jmedchem.1c01296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Khuchtumur Bum-Erdene
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
| | - Patrick M. Collins
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
| | - Matthew W. Hugo
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
| | - Somayeh S. Tarighat
- Section of Molecular Carcinogenesis, Division of Hematology/Oncology and Bone Marrow Transplant, The Saban Research Institute of Children’s Hospital Los Angeles, Los Angeles, California 90027, United States
| | - Fei Fei
- Section of Molecular Carcinogenesis, Division of Hematology/Oncology and Bone Marrow Transplant, The Saban Research Institute of Children’s Hospital Los Angeles, Los Angeles, California 90027, United States
| | - Chandan Kishor
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
| | - Hakon Leffler
- Department of Laboratory Medicine, Section MIG, Lund University, BMC-C1228b, Klinikgatan 28, 221 84 Lund, Sweden
| | - Ulf. J. Nilsson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 221 00 Lund, Sweden
| | - John Groffen
- Section of Molecular Carcinogenesis, Division of Hematology/Oncology and Bone Marrow Transplant, The Saban Research Institute of Children’s Hospital Los Angeles, Los Angeles, California 90027, United States
| | - I. Darren Grice
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast Campus, Queensland 4222, Australia
| | - Nora Heisterkamp
- Section of Molecular Carcinogenesis, Division of Hematology/Oncology and Bone Marrow Transplant, The Saban Research Institute of Children’s Hospital Los Angeles, Los Angeles, California 90027, United States
| | - Helen Blanchard
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
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Wang S, Gai Y, Li M, Fang H, Xiang G, Ma X. Synthesis of a new bifunctional NODA for bioconjugation with PSMA ligand and one-step Al 18F labeling. Bioorg Med Chem 2022; 60:116687. [PMID: 35278818 DOI: 10.1016/j.bmc.2022.116687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/19/2022] [Accepted: 02/21/2022] [Indexed: 11/02/2022]
Abstract
The Al18F labeling method is a relatively new approach that allows radiofluorination of biomolecules such as peptides and proteins in a one-step procedure and in an aqueous solution. However, instability of the complex of [AlF]2+ with hexadentate chelator NOTA may attribute to the disassociation of free 18F- and [Al18F]2+ and accumulation in bone. In this study, we designed and synthesized a new bifunctional pentadentate AlF-chelator p-SCN-PhPr-NODA as well as its nitro form p-NO2-PhPr-NODA. Chelator p-NO2-PhPr-NODA exhibited increased Al (III) complexation kinetics determined by AA III complexation kinetic studies and stronger coordination ability towards [AlF]2+ according to DFT calculation studies in comparison with hexadentate chelator NOTA. As a proof of concept, bifunctional chelator p-SCN-PhPr-NODA was furthermore conjugated to a PSMA targeting moiety Glu-urea-Lys to form NODA-PrPh-GuL. The conjugated peptide showed acceptable radiochemical yield (12.5-16.4%) and efficiency with an excellent radiochemical purity (∼100% after SPE purification) in Al18F labeling. The labeled peptide exhibited good in vitro stability and significant specificity for PSMA. Biodistribution study and MicroPET scan in healthy Kun Ming mice with the labeled peptide were performed and demonstrated excellent in vivo stability of Al18F-labeled construct. In general, the successful application of the new bifunctional chelator in labeling dipeptide Glu-urea-Lys with Al18F could facilitate its possibility in conjugating with other peptides for PET imaging with enhanced in vivo stability, thus providing better in vivo performances.
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Affiliation(s)
- Sheng Wang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Yongkang Gai
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China; Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, Hubei, China
| | - Mengting Li
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China; Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, Hubei, China
| | - Hanyi Fang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China; Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, Hubei, China
| | - Guangya Xiang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.
| | - Xiang Ma
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.
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Logvinenko IG, Kondratov IS, Pridma SO, Tolmachova NA, Morev RN, Dolovanyuk VG, Boretskyi AL, Stepanyuk RO, Trofimchuk SA, Mück-Lichtenfeld C, Daniliuc CG, Haufe G. Synthesis and physical chemical properties of CF3O-containg secondary amines – perspective building blocks for Drug Discovery. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2022.109990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yamali C, Inci Gul H, Tugrak Sakarya M, Nurpelin Saglik B, Ece A, Demirel G, Nenni M, Levent S, Cihat Oner A. Quinazolinone-based benzenesulfonamides with low toxicity and high affinity as monoamine oxidase-A inhibitors: Synthesis, biological evaluation and induced-fit docking studies. Bioorg Chem 2022; 124:105822. [DOI: 10.1016/j.bioorg.2022.105822] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/18/2022] [Indexed: 02/07/2023]
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Pal S, Chandra G, Patel S, Singh S. Fluorinated Nucleosides: Synthesis, Modulation in Conformation and Therapeutic Application. CHEM REC 2022; 22:e202100335. [PMID: 35253973 DOI: 10.1002/tcr.202100335] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/22/2022] [Indexed: 12/17/2022]
Abstract
Over the last twenty years, fluorination on nucleoside has established itself as the most promising tool to use to get biologically active compounds that could sustain the clinical trial by affecting the pharmacodynamics and pharmacokinetic properties. Due to fluorine's inherent unique properties and its judicious introduction into the molecule, makes the corresponding nucleoside metabolically very stable, lipophilic, and opens a new site of intermolecular binding. Fluorination on various nucleosides has been extensively studied as a result, a series of fluorinated nucleosides come up for different therapeutic uses which are either approved by the FDA or under the advanced stage of the clinical trial. Here in this review, we are summarizing the latest development in the chemistry of fluorination on nucleoside that led to varieties of new analogs like carbocyclic, acyclic, and conformationally biased nucleoside and their biological properties, the influence of fluorine on conformation, oligonucleotide stability, and their use in therapeutics.
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Affiliation(s)
- Shantanu Pal
- School of Basic Sciences, Indian Institute of Technology, Bhubaneswar Argul, Odisha, India, 752050
| | - Girish Chandra
- Department of Chemistry, School of Physical and Chemical Sciences, Central University of South Bihar, SH-7, Gaya Panchanpur Road, Gaya, Bihar, India, 824236
| | - Samridhi Patel
- Department of Chemistry, School of Physical and Chemical Sciences, Central University of South Bihar, SH-7, Gaya Panchanpur Road, Gaya, Bihar, India, 824236
| | - Sakshi Singh
- School of Basic Sciences, Indian Institute of Technology, Bhubaneswar Argul, Odisha, India, 752050
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Zhang XF, Luan MZ, Yan WB, Zhao FL, Hou Y, Hou GG, Meng QG. Anti-neuroinflammatory effects of novel 5,6-dihydrobenzo[h]quinazolin-2-amine derivatives in lipopolysaccharide-stimulated BV2 microglial cells. Eur J Med Chem 2022; 235:114322. [DOI: 10.1016/j.ejmech.2022.114322] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/19/2022] [Accepted: 03/24/2022] [Indexed: 01/07/2023]
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46
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Pirotte B, Florence X, Goffin E, Leleux F, Lebrun P. Research Advancements on Fluorinated and Non-Fluorinated 4-Phenyl(thio)ureido-Substituted 2,2-Dimethylchromans Acting as Inhibitors of Insulin Release and Smooth Muscle Relaxants. Med Chem 2022; 18:884-894. [PMID: 35189799 DOI: 10.2174/1573406418666220221145500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/29/2021] [Accepted: 12/21/2021] [Indexed: 11/22/2022]
Abstract
AIMS The present study aimed at characterizing the impact of the presence or absence of fluorine atoms on the phenyl and benzopyran rings of 4-phenyl(thio)ureido-substituted 2,2-dimethylchromans on their ability to inhibit insulin release from pancreatic -cells or to relax vascular smooth muscle cells. METHODS Most compounds were found to inhibit insulin secretion and to provoke a marked myorelaxant activity. RESULTS The lack of a fluorine or a chlorine atom at the 6-position of the 2,2-dimethylchroman core structure reduced the inhibitory activity on the pancreatic endocrine tissue. One of the most active compounds on both tissues, compound 11h (BPDZ 678), was selected for further pharmacological investigations. CONCLUSION The biological data suggested that 11h mainly expressed the profile of a KATP channel opener on pancreatic -cells, although a calcium entry blockade effect was also observed. On vascular smooth muscle cells, 11h behaved as a calcium entry blocker.
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Affiliation(s)
- Bernard Pirotte
- Laboratoire de Chimie Pharmaceutique, Center for Interdisciplinary Research on Medicines (CIRM), Université de Liège, Quartier Hôpital, Avenue Hippocrate 15, B-4000 Liège, Belgium
| | - Xavier Florence
- Laboratoire de Chimie Pharmaceutique, Center for Interdisciplinary Research on Medicines (CIRM), Université de Liège, Quartier Hôpital, Avenue Hippocrate 15, B-4000 Liège, Belgium
- Laboratoire de Physiologie et Pharmacologie, Université Libre de Bruxelles, Faculté de Médecine, 808 Route de Lennik, B-1070 Bruxelles, Belgium
| | - Eric Goffin
- Laboratoire de Chimie Pharmaceutique, Center for Interdisciplinary Research on Medicines (CIRM), Université de Liège, Quartier Hôpital, Avenue Hippocrate 15, B-4000 Liège, Belgium
| | - Fabienne Leleux
- Laboratoire de Physiologie et Pharmacologie, Université Libre de Bruxelles, Faculté de Médecine, 808 Route de Lennik, B-1070 Bruxelles, Belgium
| | - Philippe Lebrun
- Laboratoire de Physiologie et Pharmacologie, Université Libre de Bruxelles, Faculté de Médecine, 808 Route de Lennik, B-1070 Bruxelles, Belgium
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Dai P, Li Y, Chen Y, Jiao J, Wang Q, Li C, Gu Y, Zhang Y, Xia Q, Zhang WH. (Fluoromethylsulfonyl)methylation of Quinoxalinones Using NaSO2CH2F for C–F Bond Cleavage. Org Lett 2022; 24:1357-1361. [DOI: 10.1021/acs.orglett.2c00048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Peng Dai
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yufei Li
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yu Chen
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jian Jiao
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Qingqing Wang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Chenxiao Li
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yucheng Gu
- Syngenta Jealott’s Hill International Research Centre, Bracknell RG42 6EY, U.K
| | - Yanbin Zhang
- Department of Chemistry, National University of Singapore, 117545 Singapore
| | - Qing Xia
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Wei-Hua Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
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48
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Pietruś W, Kafel R, Bojarski AJ, Kurczab R. Hydrogen Bonds with Fluorine in Ligand-Protein Complexes-the PDB Analysis and Energy Calculations. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27031005. [PMID: 35164270 PMCID: PMC8838457 DOI: 10.3390/molecules27031005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/25/2022] [Accepted: 01/29/2022] [Indexed: 12/30/2022]
Abstract
Fluorine is a common substituent in medicinal chemistry and is found in up to 50% of the most profitable drugs. In this study, a statistical analysis of the nature, geometry, and frequency of hydrogen bonds (HBs) formed between the aromatic and aliphatic C-F groups of small molecules and biological targets found in the Protein Data Bank (PDB) repository was presented. Interaction energies were calculated for those complexes using three different approaches. The obtained results indicated that the interaction energy of F-containing HBs is determined by the donor-acceptor distance and not by the angles. Moreover, no significant relationship between the energies of HBs with fluorine and the donor type was found, implying that fluorine is a weak HB acceptor for all types of HB donors. However, the statistical analysis of the PDB repository revealed that the most populated geometric parameters of HBs did not match the calculated energetic optima. In a nutshell, HBs containing fluorine are forced to form due to the stronger ligand-receptor neighboring interactions, which make fluorine the "donor's last resort".
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Synthesis, Structural Characterization and Anticancer Activity of New 5-Trifluoromethyl-2-thioxo-thiazolo[4,5-d]pyrimidine Derivatives. Pharmaceuticals (Basel) 2022; 15:ph15010092. [PMID: 35056147 PMCID: PMC8778818 DOI: 10.3390/ph15010092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/29/2021] [Accepted: 01/10/2022] [Indexed: 02/06/2023] Open
Abstract
Thiazolo[4,5-d]pyrimidine derivatives are considered potential therapeutic agents, particularly in the development of anticancer drugs. In this study, new 7-oxo-(2a-e), 7-chloro-(3a-e) and also three 7-amino-(4a-c) 5-trifluoromethyl-2-thioxo-thiazolo[4,5-d]pyrimidine derivatives have been synthesized and evaluated for their potential anticancer activity. These derivatives were characterized by spectroscopic methods and elemental analysis, and the single-crystal X-ray diffraction was further performed to confirm a 3D structure for compounds 2e and 4b. The antiproliferative activity evaluation of twelve new compounds was carried out on a variety of cell lines including four human cancer (A375, C32, DU145, MCF-7/WT) and two normal cell lines (CHO-K1 and HaCaT). Four of them (2b, 3b, 4b and 4c) were selected by the National Cancer Institute and evaluated for their in vitro anticancer activity using the NCI-60 screening program. 7-Chloro-3-phenyl-5-(trifluoromethyl)[1,3]thiazolo[4,5-d]pyrimidine-2(3H)-thione (3b) proved to be the most active among the newly synthesized compounds.
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50
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Zheng L, Wang Y, Cai L, Guo W. Progress in C—CF 3/C—N Bond Formation Reactions of Alkenes Involving in Free Radicals. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202208026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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