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Krajčovičová S, Hlaváč J, Vychodilová K. Polymer-supported synthesis of N-substituted anthranilates as the building blocks for preparation of N-arylated 3-hydroxyquinolin-4(1 H)-ones. RSC Adv 2021; 11:9362-9365. [PMID: 35423420 PMCID: PMC8695337 DOI: 10.1039/d1ra01308d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 11/21/2022] Open
Abstract
Fast and simple access to N-arylated 3-hydroxyquinolin-4(1H)-ones starting from easily available 1-methyl-2-iodoterephthalate and variously substituted anilines is presented. N-Alkylated anthranilic acid derivatives represent important intermediates. They can be advantageously prepared by solid-phase synthesis, by Buchwald–Hartwig amination or reductive amination with wide substrate scope and with excellent crude purities. Fast and simple access to N-arylated 3-hydroxyquinolin-4(1H)-ones starting from easily available 1-methyl-2-iodoterephthalate and variously substituted anilines is presented.![]()
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Affiliation(s)
- Soňa Krajčovičová
- Department of Organic Chemistry, Faculty of Science, Palacký University 17. Listopadu 12 77146 Olomouc Czech Republic
| | - Jan Hlaváč
- Department of Organic Chemistry, Faculty of Science, Palacký University 17. Listopadu 12 77146 Olomouc Czech Republic
| | - Kristýna Vychodilová
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University Hněvotínská 5 77900 Olomouc Czech Republic
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2
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Waltemate J, Ivanov I, Ghasemi JB, Aghaee E, Daniliuc CG, Müller K, Prinz H. 10-(4-Phenylpiperazine-1-carbonyl)acridin-9(10H)-ones and related compounds: Synthesis, antiproliferative activity and inhibition of tubulin polymerization. Bioorg Med Chem Lett 2021; 32:127687. [PMID: 33212157 DOI: 10.1016/j.bmcl.2020.127687] [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: 10/13/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 10/23/2022]
Abstract
As part of our continuing search for potent inhibitors of tubulin polymerization, two novel series of 42 10-(4-phenylpiperazine-1-carbonyl)acridin-9(10H)-ones and N-benzoylated acridones were synthesized on the basis of a retrosynthetic approach. All newly synthesized compounds were tested for antiproliferative activity and interaction with tubulin. Several analogs potently inhibited tumor cell growth. Among the compounds tested, 10-(4-(3-methoxyphenyl)piperazine-1-carbonyl)acridin-9(10H)-one (17c) exhibited excellent growth inhibitory effects on 93 tumor cell lines, with an average GI50 value of 5.4 nM. We were able to show that the strong cytotoxic effects are caused by disruption of tubulin polymerization, as supported by the EBI (N,N'-Ethylenebis(iodoacetamide)) assay and the fact that the most potent inhibitors of cancer cell growth turned out to be the most efficacious tubulin polymerization inhibitors. Potencies were nearly comparable or superior to those of the antimitotic reference compounds. Closely related to this, the most active analogs inhibited cell cycling at the G2/M phase at concentrations down to 30 nM and induced apoptosis in K562 leukemia cells. We believe that our work not only proves the excellent suitability of the acridone scaffold for the design of potent tubulin polymerization inhibitors but also enables synthetic access to further potentially interesting N-acylated acridones.
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Affiliation(s)
- Jana Waltemate
- Institute of Pharmaceutical and Medicinal Chemistry, Westphalian Wilhelms-University, Corrensstraße 48, D-48149 Münster, Germany
| | - Igor Ivanov
- Oncolead GmbH & Co. KG, Zugspitzstraße 5, D-85757 Karlsfeld, Germany
| | - Jahan B Ghasemi
- Drug Design in Silico Lab, Chemistry Faculty, School of Sciences, University of Tehran, Teheran, Iran
| | - Elham Aghaee
- Drug Design in Silico Lab, Chemistry Faculty, School of Sciences, University of Tehran, Teheran, Iran
| | | | - Klaus Müller
- Institute of Pharmaceutical and Medicinal Chemistry, Westphalian Wilhelms-University, Corrensstraße 48, D-48149 Münster, Germany
| | - Helge Prinz
- Institute of Pharmaceutical and Medicinal Chemistry, Westphalian Wilhelms-University, Corrensstraße 48, D-48149 Münster, Germany.
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3
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Thakore RR, Takale BS, Singhania V, Gallou F, Lipshutz BH. Late‐stage Pd‐catalyzed Cyanations of Aryl/Heteroaryl Halides in Aqueous Micellar Media. ChemCatChem 2020. [DOI: 10.1002/cctc.202001742] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ruchita R. Thakore
- Department of Chemistry and Biochemistry University of California Santa Barbara CA-93106 USA
| | - Balaram S. Takale
- Department of Chemistry and Biochemistry University of California Santa Barbara CA-93106 USA
| | - Vani Singhania
- Department of Chemistry and Biochemistry University of California Santa Barbara CA-93106 USA
| | | | - Bruce H. Lipshutz
- Department of Chemistry and Biochemistry University of California Santa Barbara CA-93106 USA
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Anti-Tumor Potential of IMP Dehydrogenase Inhibitors: A Century-Long Story. Cancers (Basel) 2019; 11:cancers11091346. [PMID: 31514446 PMCID: PMC6770829 DOI: 10.3390/cancers11091346] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/01/2019] [Accepted: 09/02/2019] [Indexed: 01/15/2023] Open
Abstract
The purine nucleotides ATP and GTP are essential precursors to DNA and RNA synthesis and fundamental for energy metabolism. Although de novo purine nucleotide biosynthesis is increased in highly proliferating cells, such as malignant tumors, it is not clear if this is merely a secondary manifestation of increased cell proliferation. Suggestive of a direct causative effect includes evidence that, in some cancer types, the rate-limiting enzyme in de novo GTP biosynthesis, inosine monophosphate dehydrogenase (IMPDH), is upregulated and that the IMPDH inhibitor, mycophenolic acid (MPA), possesses anti-tumor activity. However, historically, enthusiasm for employing IMPDH inhibitors in cancer treatment has been mitigated by their adverse effects at high treatment doses and variable response. Recent advances in our understanding of the mechanistic role of IMPDH in tumorigenesis and cancer progression, as well as the development of IMPDH inhibitors with selective actions on GTP synthesis, have prompted a reappraisal of targeting this enzyme for anti-cancer treatment. In this review, we summarize the history of IMPDH inhibitors, the development of new inhibitors as anti-cancer drugs, and future directions and strategies to overcome existing challenges.
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Novel series of acridone-1,2,3-triazole derivatives: microwave-assisted synthesis, DFT study and antibacterial activities. J CHEM SCI 2019. [DOI: 10.1007/s12039-019-1653-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Zhang Q, Shi B. From Reactivity and Regioselectivity to Stereoselectivity: An Odyssey of Designing PIP Amine and Related Directing Groups for C—H Activation. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900090] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Qi Zhang
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
| | - Bing‐Feng Shi
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
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Kancharla P, Dodean RA, Li Y, Kelly JX. Boron Trifluoride Etherate Promoted Microwave-Assisted Synthesis of Antimalarial Acridones. RSC Adv 2019; 9:42284-42293. [PMID: 35321096 PMCID: PMC8939876 DOI: 10.1039/c9ra09478d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A microwave-assisted, rapid and efficient method using boron trifluoride etherate (BF3.Et2O) for the synthesis of acridones, via an intramolecular acylation of N-phenylanthranilic acid derivatives, has been developed. The reaction proceeds under solvent-free conditions, tolerates a wide range of functional groups, and provides rapid access to a range of acridones in good to excellent yields. Several of the synthesized acridones exhibited potent antimalarial activities against CQ sensitive and multi-drug resistant (MDR) parasites.
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Affiliation(s)
- Papireddy Kancharla
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Rozalia A Dodean
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States.,Department of Veterans Affairs Medical Center, Portland, Oregon 97239, United States
| | - Yuexin Li
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States.,Department of Veterans Affairs Medical Center, Portland, Oregon 97239, United States
| | - Jane X Kelly
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States.,Department of Veterans Affairs Medical Center, Portland, Oregon 97239, United States
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8
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Onaolapo A, Onaolapo O. Food additives, food and the concept of ‘food addiction’: Is stimulation of the brain reward circuit by food sufficient to trigger addiction? PATHOPHYSIOLOGY 2018; 25:263-276. [DOI: 10.1016/j.pathophys.2018.04.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 02/26/2018] [Accepted: 04/07/2018] [Indexed: 02/08/2023] Open
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Discovery of a novel allosteric inhibitor scaffold for polyadenosine-diphosphate-ribose polymerase 14 (PARP14) macrodomain 2. Bioorg Med Chem 2018; 26:2965-2972. [PMID: 29567296 PMCID: PMC6008491 DOI: 10.1016/j.bmc.2018.03.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 03/09/2018] [Accepted: 03/10/2018] [Indexed: 01/08/2023]
Abstract
The polyadenosine-diphosphate-ribose polymerase 14 (PARP14) has been implicated in DNA damage response pathways for homologous recombination. PARP14 contains three (ADP ribose binding) macrodomains (MD) whose exact contribution to overall PARP14 function in pathology remains unclear. A medium throughput screen led to the identification of N-(2(-9H-carbazol-1-yl)phenyl)acetamide (GeA-69, 1) as a novel allosteric PARP14 MD2 (second MD of PARP14) inhibitor. We herein report medicinal chemistry around this novel chemotype to afford a sub-micromolar PARP14 MD2 inhibitor. This chemical series provides a novel starting point for further development of PARP14 chemical probes.
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Cuny GD, Suebsuwong C, Ray SS. Inosine-5'-monophosphate dehydrogenase (IMPDH) inhibitors: a patent and scientific literature review (2002-2016). Expert Opin Ther Pat 2017; 27:677-690. [PMID: 28074661 DOI: 10.1080/13543776.2017.1280463] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Inosine-5'-monophosphate dehydrogenase (IMPDH) is an enzyme involved in the de novo biosynthesis of guanine nucleotides. To date human IMPDH inhibitors have been approved for prevention of organ transplant rejection and as anti-viral agents. More recently, the use of IMPDH inhibitors for other indications including cancer and pathogenic microorganisms has been pursued. Areas covered: IMPDH inhibitors disclosed primarily in the patent and scientific literature from 2002 to the present are discussed. Several interesting chemotypes that have not been pursued by patent protection are also highlighted. Expert opinion: Progress has been made in the development of IMPDH inhibitors, particularly compounds that are structurally distinct from mycophenolic acid and nucleoside-based inhibitors. However, clinical progression has been hampered primarily by a limited understanding of the enzyme's role in disease pathophysiology. Finally, most of the IMPDH inhibitors developed over the past fourteen years fall within a relatively narrow set of chemotypes. This provides opportunities for expanding IMPDH inhibitor chemical space to further evaluate this class of molecular targets.
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Affiliation(s)
- Gregory D Cuny
- a Department of Pharmacological and Pharmaceutical Sciences , University of Houston , Houston , TX , USA
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11
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Pearson-Long MSM, Boeda F, Bertus P. Double Addition of Organometallics to Nitriles: Toward an Access to Tertiary Carbinamines. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600727] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Morwenna S. M. Pearson-Long
- Université du Maine; Institut des Molécules et Matériaux du Mans (IMMM), CNRS UMR 6283; 72085 Le Mans Cedex 09 France
| | - Fabien Boeda
- Université du Maine; Institut des Molécules et Matériaux du Mans (IMMM), CNRS UMR 6283; 72085 Le Mans Cedex 09 France
| | - Philippe Bertus
- Université du Maine; Institut des Molécules et Matériaux du Mans (IMMM), CNRS UMR 6283; 72085 Le Mans Cedex 09 France
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12
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Pan H, Hu Q, Wang J, Liu Z, Wu D, Lu W, Huang J. Myricetin is a novel inhibitor of human inosine 5'-monophosphate dehydrogenase with anti-leukemia activity. Biochem Biophys Res Commun 2016; 477:915-922. [PMID: 27378425 DOI: 10.1016/j.bbrc.2016.06.158] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Accepted: 06/30/2016] [Indexed: 01/14/2023]
Abstract
Human inosine 5'-monophosphate dehydrogenase (hIMPDH) is a rate-limiting enzyme in the de novo biosynthetic pathway of purine nucleotides, playing crucial roles in cellular proliferation, differentiation, and transformation. Dysregulation of hIMPDH expression and activity have been found in a variety of human cancers including leukemia. In this study, we found that myricetin, a naturally occurring phytochemical existed in berries, wine and tea, was a novel inhibitor of human type 1 and type 2 IMPDH (hIMPDH1/2) with IC50 values of 6.98 ± 0.22 μM and 4.10 ± 0.14 μM, respectively. Enzyme kinetic analysis using Lineweaver-Burk plot revealed that myricetin is a mix-type inhibitor for hIMPDH1/2. Differential scanning fluorimetry and molecular docking simulation data demonstrate that myricetin is capable of binding with hIMPDH1/2. Myricetin treatment exerts potent anti-proliferative and pro-apoptotic effects on K562 human leukemia cells in a dose-dependent manner. Importantly, cytotoxicity of myricetin on K562 cells were markedly attenuated by exogenous addition of guanosine, a salvage pathway of maintaining intracellular pool of guanine nucleotides. Taking together, these results indicate that natural product myricetin exhibits potent anti-leukemia activity by interfering with purine nucleotides biosynthetic pathway through the suppression of hIMPDH1/2 catalytic activity.
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Affiliation(s)
- Huiling Pan
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, PR China
| | - Qian Hu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, PR China
| | - Jingyuan Wang
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, PR China
| | - Zehui Liu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, PR China
| | - Dang Wu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, PR China
| | - Weiqiang Lu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, PR China.
| | - Jin Huang
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, PR China.
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Kuethe JT, Journet M, Peng Z, Zhao D, McKeown A, Humphrey GR. Development of a Multikilogram Scale Synthesis of a TRPV1 Antagonist. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.5b00388] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jeffrey T. Kuethe
- Department of Process Chemistry, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Michel Journet
- Department of Process Chemistry, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Zhihui Peng
- Department of Process Chemistry, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Dalian Zhao
- Department of Process Chemistry, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Arlene McKeown
- Department of Process Chemistry, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Guy R. Humphrey
- Department of Process Chemistry, Merck & Co., Inc., Rahway, New Jersey 07065, United States
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Goodrich S, Patel M, Woydziak ZR. Synthesis of a Fluorescent Acridone using a Grignard Addition, Oxidation, and Nucleophilic Aromatic Substitution Reaction Sequence. JOURNAL OF CHEMICAL EDUCATION 2015; 92:1221-1225. [PMID: 27681671 PMCID: PMC5036523 DOI: 10.1021/ed5009574] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A three-pot synthesis oriented for an undergraduate organic chemistry laboratory was developed to construct a fluorescent acridone molecule. This laboratory experiment utilizes Grignard addition to an aldehyde, alcohol oxidation, and iterative nucleophilic aromatic substitution steps to produce the final product. Each of the intermediates and the acridone product of the synthesis are analyzed by common techniques available in most undergraduate chemistry laboratories, such as melting point, TLC, IR spectroscopy, UV-Vis spectroscopy, and fluorescence spectroscopy. Yields for each transformation in the synthesis are generally moderately low to good (20-90%) and nearly all of the students (>90%) who attempted the synthesis were able to produce the final acridone product.
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15
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Mazzucco MB, Talarico LB, Vatansever S, Carro AC, Fascio ML, D'Accorso NB, García CC, Damonte EB. Antiviral activity of an N-allyl acridone against dengue virus. J Biomed Sci 2015; 22:29. [PMID: 25908170 PMCID: PMC4407772 DOI: 10.1186/s12929-015-0134-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 04/08/2015] [Indexed: 12/19/2022] Open
Abstract
Background Dengue virus (DENV), a member of the family Flaviviridae, is at present the most widespread causative agent of a human viral disease transmitted by mosquitoes. Despite the increasing incidence of this pathogen, there are no antiviral drugs or vaccines currently available for treatment or prevention. In a previous screening assay, we identified a group of N-allyl acridones as effective virus inhibitors. Here, the antiviral activity and mode of action targeted to viral RNA replication of one of the most active DENV-2 inhibitors was further characterized. Results The compound 10-allyl-7-chloro-9(10H)-acridone, designated 3b, was active to inhibit the in vitro infection of Vero cells with the four DENV serotypes, with effective concentration 50% (EC50) values in the range 12.5-27.1 μM, as determined by virus yield inhibition assays. The compound was also effective in human HeLa cells. No cytotoxicity was detected at 3b concentrations up to 1000 μM. Mechanistic studies demonstrated that virus entry into the host cell was not affected, whereas viral RNA synthesis was strongly inhibited, as quantified by real time RT-PCR. The addition of exogenous guanosine together with 3b rescued only partially the infectivity of DENV-2. Conclusions The acridone derivative 3b selectively inhibits the infection of Vero cells with the four DENV serotypes without a direct interaction with the host cell or the virion but interfering specifically with the intracellular virus multiplication. The mode of antiviral action for this acridone apparently involves the cellular enzyme inosine-monophospahe dehydrogenase together with another still unidentified target related to DENV RNA synthesis.
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Affiliation(s)
- María B Mazzucco
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Piso 4, Buenos Aires, Pabellón, 1428, Argentina. .,Present address: Laboratorio de Reproducción y Metabolismo, Facultad de Medicina, CEFYBO-CONICET, UBA, Buenos Aires, 1121, Argentina.
| | - Laura B Talarico
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Piso 4, Buenos Aires, Pabellón, 1428, Argentina. .,Present address: Fundación Infant, Buenos Aires, 1406, Argentina.
| | - Sezen Vatansever
- Graduate School of Science and Engineering, Koc University, Rumelifener yolu, Istanbul, Sarıyer, 34450, Turke.
| | - Ana C Carro
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Piso 4, Buenos Aires, Pabellón, 1428, Argentina. .,IQUIBICEN-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
| | - Mirta L Fascio
- CIHIDECAR (CONICET), Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Pabellón 2, Piso 3, Buenos Aires, 1428, Argentina.
| | - Norma B D'Accorso
- CIHIDECAR (CONICET), Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Pabellón 2, Piso 3, Buenos Aires, 1428, Argentina.
| | - Cybele C García
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Piso 4, Buenos Aires, Pabellón, 1428, Argentina. .,IQUIBICEN-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
| | - Elsa B Damonte
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Piso 4, Buenos Aires, Pabellón, 1428, Argentina. .,IQUIBICEN-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
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In silico design of human IMPDH inhibitors using pharmacophore mapping and molecular docking approaches. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2015; 2015:418767. [PMID: 25784957 PMCID: PMC4345060 DOI: 10.1155/2015/418767] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 01/08/2015] [Accepted: 01/20/2015] [Indexed: 12/20/2022]
Abstract
Inosine 5′-monophosphate dehydrogenase (IMPDH) is one of the crucial enzymes in the de novo biosynthesis of guanosine nucleotides. It has served as an attractive target in immunosuppressive, anticancer, antiviral, and antiparasitic therapeutic strategies. In this study, pharmacophore mapping and molecular docking approaches were employed to discover novel Homo sapiens IMPDH (hIMPDH) inhibitors. The Güner-Henry (GH) scoring method was used to evaluate the quality of generated pharmacophore hypotheses. One of the generated pharmacophore hypotheses was found to possess a GH score of 0.67. Ten potential compounds were selected from the ZINC database using a pharmacophore mapping approach and docked into the IMPDH active site. We find two hits (i.e., ZINC02090792 and ZINC00048033) that match well the optimal pharmacophore features used in this investigation, and it is found that they form interactions with key residues of IMPDH. We propose that these two hits are lead compounds for the development of novel hIMPDH inhibitors.
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Huang C, Yan SJ, Zeng XH, Sun B, Lan MB, Lin J. Synthesis and evaluation of the antitumor activity of polyhalo acridone derivatives. RSC Adv 2015. [DOI: 10.1039/c4ra12354a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A series of polyhalo acridone heterocyclic compounds were synthesized and evaluated for theirin vitroantitumor activity. Compounds4d,4o,5jand5kshowed good antineoplastic selectivity.
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Affiliation(s)
- Chao Huang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Xiang-Hui Zeng
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Bo Sun
- Shanghai Key Laboratory of Functional Materials Chemistry and Research Centre of Analysis and Test
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Min-Bo Lan
- Shanghai Key Laboratory of Functional Materials Chemistry and Research Centre of Analysis and Test
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
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18
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Zhang E, Zhang X, Wei W, Wang D, Cai Y, Xu T, Yan M, Zou Y. A biomass-involved strategy for the synthesis of N-arylated dibenzo[b,e][1,4]oxazepin-11(5H)-ones, acridones, 7,12-dihydrodibenzo[b,e][1,4]oxazocin-6H-ones and dibenzo[b,f]azepin-10(11H)-ones. RSC Adv 2015. [DOI: 10.1039/c4ra12479k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A chemo- and regio-selective method for the construction of benzo-fused six- to eight-membered N-heterocycles from renewable feedstock shikimic acid is described.
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Affiliation(s)
- Ensheng Zhang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- P. R. China
- Guangzhou Institute of Chemistry
| | - Xuejing Zhang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- P. R. China
| | - Wen Wei
- Guangzhou Institute of Chemistry
- Chinese Academy of Science
- Guangzhou
- P. R. China
| | - Dejian Wang
- Guangzhou Institute of Chemistry
- Chinese Academy of Science
- Guangzhou
- P. R. China
- University of Chinese Academy of Sciences
| | - Yuchen Cai
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangzhou
- P. R. China
| | - Tianlong Xu
- Guangzhou Institute of Chemistry
- Chinese Academy of Science
- Guangzhou
- P. R. China
- University of Chinese Academy of Sciences
| | - Ming Yan
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- P. R. China
| | - Yong Zou
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- P. R. China
- Guangzhou Institute of Chemistry
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Cholewiński G, Iwaszkiewicz-Grześ D, Prejs M, Głowacka A, Dzierzbicka K. Synthesis of the inosine 5′-monophosphate dehydrogenase (IMPDH) inhibitors. J Enzyme Inhib Med Chem 2014; 30:550-63. [DOI: 10.3109/14756366.2014.951349] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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20
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Benoit AR, Schiaffo C, Salomon CE, Goodell JR, Hiasa H, Ferguson DM. Synthesis and evaluation of N-alkyl-9-aminoacridines with antibacterial activity. Bioorg Med Chem Lett 2014; 24:3014-7. [PMID: 24908610 DOI: 10.1016/j.bmcl.2014.05.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 05/12/2014] [Indexed: 11/16/2022]
Abstract
A series of 9-alkylaminoacridines were synthesized and evaluated for activity against two strains of methicillin-resistant and one strain of methicillin-sensitive Staphylococcus aureus. Results are presented that show a clear structure activity relationship between the N-alkyl chain length and antibacterial activity with peak MIC99 values of 2-3 μM for alkyl chains ranging from 10 to 14 carbons in length. Although prior work has linked the function of acridine-based compounds to intercalation and topoisomerase inhibition, the present results show that 9-alkylaminoacridines likely function as amphiphilic membrane-active disruptors potentially in a similar manner as quaternary ammonium antimicrobials.
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Affiliation(s)
- Adam R Benoit
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN 55455, United States
| | - Charles Schiaffo
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN 55455, United States
| | - Christine E Salomon
- Center for Drug Design, University of Minnesota, Minneapolis, MN 55455, United States
| | - John R Goodell
- Department of Chemistry, Illinois State University, Normal, IL 61790-4160, United States
| | - Hiroshi Hiasa
- Department of Pharmacology, University of Minnesota, Minneapolis, MN 55455, United States
| | - David M Ferguson
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN 55455, United States; Center for Drug Design, University of Minnesota, Minneapolis, MN 55455, United States.
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21
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Linero FN, Sepúlveda CS, Giovannoni F, Castilla V, García CC, Scolaro LA, Damonte EB. Host cell factors as antiviral targets in arenavirus infection. Viruses 2012; 4:1569-91. [PMID: 23170173 PMCID: PMC3499820 DOI: 10.3390/v4091569] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 08/31/2012] [Accepted: 09/04/2012] [Indexed: 12/11/2022] Open
Abstract
Among the members of the Arenaviridae family, Lassa virus and Junin virus generate periodic annual outbreaks of severe human hemorrhagic fever (HF) in endemic areas of West Africa and Argentina, respectively. Given the human health threat that arenaviruses represent and the lack of a specific and safe chemotherapy, the search for effective antiviral compounds is a continuous demanding effort. Since diverse host cell pathways and enzymes are used by RNA viruses to fulfill their replicative cycle, the targeting of a host process has turned an attractive antiviral approach in the last years for many unrelated virus types. This strategy has the additional benefit to reduce the serious challenge for therapy of RNA viruses to escape from drug effects through selection of resistant variants triggered by their high mutation rate. This article focuses on novel strategies to identify inhibitors for arenavirus therapy, analyzing the potential for antiviral developments of diverse host factors essential for virus infection.
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Affiliation(s)
- Florencia N Linero
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires/IQUIBICEN (CONICET), Ciudad Universitaria, Pabellón 2, Piso 4, Buenos Aires 1428, Argentina.
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22
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Radoshitzky SR, Kuhn JH, de Kok-Mercado F, Jahrling PB, Bavari S. Drug discovery technologies and strategies for Machupo virus and other New World arenaviruses. Expert Opin Drug Discov 2012; 7:613-32. [PMID: 22607481 PMCID: PMC3426302 DOI: 10.1517/17460441.2012.687719] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Seven arenaviruses cause viral hemorrhagic fever in humans: the Old World arenaviruses Lassa and Lujo, and the New World Clade B arenaviruses Machupo (MACV), Junín (JUNV), Guanarito (GTOV), Sabiá (SABV), and Chapare (CHPV). All of these viruses are Risk Group 4 biosafety pathogens. MACV causes human disease outbreak with high case-fatality rates. To date, at least 1,200 cases with ≈200 fatalities have been recorded. AREAS COVERED This review summarizes available systems and technologies for the identification of antivirals against MACV. Furthermore, the article summarizes animal models that have been used for the in vivo evaluation of novel inhibitors. The article highlights present treatments for arenaviral diseases and provides an overview of efficacious small molecules and other therapeutics reported to date. Finally, the article summarizes strategies to identify novel inhibitors for anti-arenaviral therapy. EXPERT OPINION New high-throughput approaches to quantitate infection rates of arenaviruses, as well as viruses modified to carry reporter genes, will accelerate compound screens and drug discovery efforts. RNAi, gene expression profiling and proteomics studies will identify host targets for therapeutic intervention. New discoveries in the cell entry mechanism of MACV and other arenaviruses as well as extensive structural studies of arenaviral L and NP could facilitate the rational design of antivirals effective against all pathogenic New World arenaviruses.
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Affiliation(s)
- Sheli R. Radoshitzky
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA
| | - Jens H. Kuhn
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA
| | - Fabian de Kok-Mercado
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA
| | - Peter B. Jahrling
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA
| | - Sina Bavari
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA
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23
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Usha V, Hobrath JV, Gurcha SS, Reynolds RC, Besra GS. Identification of novel Mt-Guab2 inhibitor series active against M. tuberculosis. PLoS One 2012; 7:e33886. [PMID: 22479467 PMCID: PMC3315515 DOI: 10.1371/journal.pone.0033886] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Accepted: 02/23/2012] [Indexed: 12/17/2022] Open
Abstract
Tuberculosis (TB) remains a leading cause of mortality worldwide. With the emergence of multidrug resistant TB, extensively drug resistant TB and HIV-associated TB it is imperative that new drug targets be identified. The potential of Mycobacterium tuberculosis inosine monophosphate dehydrogenase (IMPDH) as a novel drug target was explored in the present study. IMPDH exclusively catalyzes the conversion of inosine monophosphate (IMP) to xanthosine monophosphate (XMP) in the presence of the cofactor nicotinamide adenine dinucleotide (NAD+). Although the enzyme is a dehydrogenase, the enzyme does not catalyze the reverse reaction i.e. the conversion of XMP to IMP. Unlike other bacteria, M. tuberculosis harbors three IMPDH-like genes, designated as Mt-guaB1, Mt-guaB2 and Mt-guaB3 respectively. Of the three putative IMPDH's, we previously confirmed that Mt-GuaB2 was the only functional ortholog by characterizing the enzyme kinetically. Using an in silico approach based on designed scaffolds, a series of novel classes of inhibitors was identified. The inhibitors possess good activity against M. tuberculosis with MIC values in the range of 0.4 to 11.4 µg mL−1. Among the identified ligands, two inhibitors have nanomolar Kis against the Mt-GuaB2 enzyme.
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Affiliation(s)
- Veeraraghavan Usha
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Judith V. Hobrath
- Drug Discovery Division, Southern Research Institute, Birmingham, Alabama, United States of America
| | - Sudagar S. Gurcha
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Robert C. Reynolds
- Drug Discovery Division, Southern Research Institute, Birmingham, Alabama, United States of America
| | - Gurdyal S. Besra
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
- * E-mail:
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24
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Kiselev E, Agama K, Pommier Y, Cushman M. Azaindenoisoquinolines as topoisomerase I inhibitors and potential anticancer agents: a systematic study of structure-activity relationships. J Med Chem 2012; 55:1682-97. [PMID: 22329436 DOI: 10.1021/jm201512x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A comprehensive study of a series of azaindenoisoquinoline topoisomerase I (Top1) inhibitors is reported. The synthetic pathways have been developed to prepare 7-, 8-, 9-, and 10-azaindenoisoquinolines. The present study shows that 7-azaindenoisoquinolines possess the greatest Top1 inhibitory activity and cytotoxicity. Additionally, the introduction of a methoxy group into the D-ring of 7-azaindenoisoquinolines improved their biological activities, leading to new lead molecules for further development. A series of QM calculations were performed on the model "sandwich" complexes of azaindenoisoquinolines with flanking DNA base pairs from the Drug-Top1-DNA ternary complex. The results of these calculations demonstrate how changes in two forces contributing to the π-π stacking (dispersion and charge-transfer interactions) affect the binding of the drug to the Top1-DNA cleavage complex and thus modulate the drug's Top1 inhibitory activity.
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Affiliation(s)
- Evgeny Kiselev
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, and The Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
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25
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Palladium-Catalyzed sp2 C–N Bond Forming Reactions: Recent Developments and Applications. TOP ORGANOMETAL CHEM 2012. [DOI: 10.1007/3418_2012_56] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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26
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Zhang D, Sun H, Zhang L, Zhou Y, Li C, Jiang H, Chen K, Liu H. An expedient Pd/DBU mediated cyanation of aryl/heteroaryl bromides with K4[Fe(CN)6]. Chem Commun (Camb) 2012; 48:2909-11. [DOI: 10.1039/c2cc17468e] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Woydziak ZR, Fu L, Peterson BR. Synthesis of fluorinated benzophenones, xanthones, acridones, and thioxanthones by iterative nucleophilic aromatic substitution. J Org Chem 2011; 77:473-81. [PMID: 22111869 DOI: 10.1021/jo202062f] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fluorination of fluorophores can substantially enhance their photostability and improve spectroscopic properties. To facilitate access to fluorinated fluorophores, bis(2,4,5-trifluorophenyl)methanone was synthesized by treatment of 2,4,5-trifluorobenzaldehyde with a Grignard reagent derived from 1-bromo-2,4,5-trifluorobenzene, followed by oxidation of the resulting benzyl alcohol. This hexafluorobenzophenone was subjected to sequential nucleophilic aromatic substitution reactions, first at one or both of the more reactive 4,4'-fluorines, and second by cyclization through substitution of the less reactive 2,2'-fluorines, using a variety of oxygen, nitrogen, and sulfur nucleophiles, including hydroxide, methoxide, amines, and sulfide. This method yields symmetrical and asymmetrical fluorinated benzophenones, xanthones, acridones, and thioxanthones and provides scalable access to known and novel precursors to fluorinated analogues of fluorescein, rhodamine, and other derivatives. Spectroscopic studies revealed that several of these precursors are highly fluorescent, with tunable absorption and emission spectra, depending on the substituents. This approach should allow access to a wide variety of novel fluorinated fluorophores and related compounds.
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Affiliation(s)
- Zachary R Woydziak
- Department of Medicinal Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
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28
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Nakanishi T, Kozuki Y, Eikyu Y, Kubo K, Kawato Y, Marui T, Seki N, Masunaga T, Tamura K, Morokata T. In vitro and in vivo characterization of AS2643361, a novel and highly potent inosine 5'-monophosphate dehydrogenase inhibitor. Eur J Pharmacol 2011; 674:58-63. [PMID: 22075081 DOI: 10.1016/j.ejphar.2011.10.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 10/11/2011] [Accepted: 10/27/2011] [Indexed: 01/01/2023]
Abstract
Inosine 5'-monophosphate (IMP) dehydrogenase is a critical target in solid organ transplantation. To this end, the development of mycophenolate mofetil (MMF) represents a major advance in transplant medicine. Here, we investigated the in vitro and in vivo pharmacological effects of a novel IMP dehydrogenase inhibitor, AS2643361, in several immunological and non-immunological models. The in vitro inhibitory activity of AS2643361 on immune cell and endothelial cell proliferation and on antibody production from lipopolysaccharide-stimulated B cells, was significantly more potent than that of mycophenolic acid, the active form of MMF, despite the similar potency of these compounds on IMP dehydrogenase. In a rat heterotopic cardiac transplant model, monotherapy using orally administered AS2643361 at 10 or 20mg/kg/day prolonged the median graft survival time from 6 to 16 and 19days, respectively. In dinitrophenol-lipopolysaccharide stimulated rats, oral administration of AS2643361 at 2.5, 5 or 10mg/kg/day resulted in suppression of antibody production. In vivo antibody production against alloantigen was also suppressed by AS2643361 treatment at 5 or 10mg/kg/day. Furthermore, treatment with AS2543361 effectively inhibited balloon injury induced-intimal thickening, which is a major cause of late allograft loss. Overall, the in vivo activity of AS2643361 was over two-fold more potent than that of MMF. In addition, gastrointestinal toxicity, considered a dose-limiting factor for MMF, was reduced with AS2643361 treatment. These results suggest AS2643361 has higher potency and less toxicity than MMF, making it a potential candidate for treatment of acute and chronic rejection in transplant medicine.
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Affiliation(s)
- Tomonori Nakanishi
- Astellas Research Institute of America LLC, Transplantation Immunology, Skokie, IL 60077, USA.
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29
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Sepúlveda CS, García CC, Fascio ML, D'Accorso NB, Docampo Palacios ML, Pellón RF, Damonte EB. Inhibition of Junin virus RNA synthesis by an antiviral acridone derivative. Antiviral Res 2011; 93:16-22. [PMID: 22027649 DOI: 10.1016/j.antiviral.2011.10.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 09/06/2011] [Accepted: 10/07/2011] [Indexed: 01/31/2023]
Abstract
There are no specific approved drugs for the treatment of agents of viral hemorrhagic fevers (HF) and antiviral therapies against these viruses are urgently needed. The present study characterizes the potent and selective antiviral activity against the HF causing arenavirus Junin virus (JUNV) of the compound 10-allyl-6-chloro-4-methoxy-9(10H)-acridone, designated 3f. The effectiveness of 3f to inhibit JUNV multiplication was not importantly affected by the initial multiplicity of infection, with similar effective concentration 50% (EC(50)) values in virus yield inhibition assays performed in Vero cells in the range of 0.2-40 plaque forming units (PFU)/cell. Mechanistic studies demonstrated that 3f did not affect the initial steps of adsorption and internalization. The subsequent process of viral RNA synthesis was strongly inhibited, as quantified by real time RT-PCR in compound-treated cells relative to non-treated cells. The addition of exogenous guanosine rescued the infectivity and RNA synthesis of JUNV in 3f-treated cells in a dose-dependent manner, but the reversal was partial, suggesting that the reduction of the GTP pool contributed to the antiviral activity of 3f, but it was not the main operative mechanism. The comparison of 3f with two other viral RNA inhibitors, ribavirin and mycophenolic acid, showed that ribavirin did not act against JUNV through the cellular enzyme inosine monophosphate dehydrogenase (IMPDH) inhibition whereas the anti-JUNV activity of mycophenolic acid was mainly targeted at this enzyme.
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Affiliation(s)
- Claudia S Sepúlveda
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, Piso 4, 1428 Buenos Aires, Argentina
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30
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Yang N, Wang J, Li J, Wang QH, Wang Y, Cheng MS. A three-dimensional pharmacophore model for IMPDH inhibitors. Chem Biol Drug Des 2011; 78:175-82. [PMID: 21507206 DOI: 10.1111/j.1747-0285.2011.01128.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Inosine 5'-monophosphate dehydrogenase (IMPDH) is a key enzyme in the de novo synthesis of guanosine nucleotides. It is considered an important target in the quest for drugs in the immunosuppressive, antiviral, antibacterial and anticancer therapeutic areas. In this study, a chemical feature-based pharmacophore model of IMPDH inhibitors has been firstly developed with the aid of the HypoRefine protocol within Discovery Studio 2.5. The best model for IMPDH inhibitors, Hypo1-1, was characterized by the best correlation coefficient (0.97595) and the lowest RMSD (0.582058). It consisted of one hydrogen-bond donor, one hydrogen-bond acceptor, one aromatic ring and one hydrophobic feature, as well as two excluded volumes. The model was validated using a wide range of test molecules and a cross-validation. Furthermore, the pharmacophore features were confirmed by molecular docking studies. The pharmacophore model could quantitatively predict inhibitor activity and identify highly potent molecules. Therefore, the present results could be valuable for the discovery and development of specific IMPDH inhibitors.
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Affiliation(s)
- Na Yang
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, China
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31
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Tsurugizawa T, Uematsu A, Uneyama H, Torii K. Different BOLD responses to intragastric load of L-glutamate and inosine monophosphate in conscious rats. Chem Senses 2010; 36:169-76. [PMID: 20956735 DOI: 10.1093/chemse/bjq107] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this study, we compared the blood oxygen level-dependent (BOLD) signal changes between intragastric load of monosodium L-glutamate (MSG) and inosine monophosphate (IMP), which elicit the umami taste. An intragastric load of 30 mM IMP or 60 mM MSG induced a BOLD signal increase in several brain regions, including the nucleus of the solitary tract (NTS), lateral hypothalamus (LH), and insular cortex. Only MSG increased the BOLD signal in the amygdala (AMG). The time course of the BOLD signal changes in the NTS and the LH in the IMP group was different from that of the MSG group. We further compared the brain regions correlated with the BOLD signal change in the NTS between MSG and IMP groups. The BOLD responses in the hippocampus and the orbital cortex were associated with activation of the NTS in both MSG and IMP groups, but the association in the AMG and the pyriform was only in MSG group. These results indicate that gut stimulation with MSG and IMP evoked BOLD responses in distinct regions with different temporal patterns and that the mechanism of perception of L-glutamate and IMP in the gastrointestinal tract differed from that in the taste-sensing system.
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Affiliation(s)
- Tomokazu Tsurugizawa
- Institute of Life Sciences, Ajinomoto Co., Inc., Suzuki-cho 1-1, Kawasaki-ku, Kawasaki 210-8601, Japan
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32
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Putic A, Stecher L, Prinz H, Müller K. Structure-activity relationship studies of acridones as potential antipsoriatic agents. 2. Synthesis and antiproliferative activity of 10-substituted hydroxy-10H-acridin-9-ones against human keratinocyte growth. Eur J Med Chem 2010; 45:5345-52. [PMID: 20850910 DOI: 10.1016/j.ejmech.2010.08.059] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Revised: 08/25/2010] [Accepted: 08/26/2010] [Indexed: 10/19/2022]
Abstract
A series of 10-substituted hydroxy-10H-acridin-9-ones were synthesized and studied as potential antipsoriatic agents. The antiproliferative activity of the novel derivatives, which can be considered as aza-analogues of the antipsoriatic drug anthralin, was determined using the human keratinocyte cell line HaCaT. Structure-activity relationships with respect to the nature of the N-substituent at the acridone scaffold were delineated. Release of lactate dehydrogenase (LDH) was used to exclude non-specific cytotoxic effects. As compared to anthralin, N-substitution of the acridone scaffold in the target compounds provided agents devoid of radical producing properties, which was documented by their ineffectiveness to interact with the free radical 2,2-diphenyl-1-picrylhydrazyl. This was in excellent agreement with the data obtained from the LDH assay in which the novel compounds did not induce membrane damage. Benzyl substitution at the 10-position yielded keratinocyte growth inhibitory activity in the low micromolar range. The most potent inhibitor of keratinocyte hyperproliferation was compound 8a having an N-methyl group and a 1,3-dihydroxy arrangement at the acridone scaffold, with an IC(50) value comparable to that of anthralin.
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Affiliation(s)
- Aleksandar Putic
- Institute of Pharmaceutical and Medicinal Chemistry, Westphalian Wilhelms-University, Hittorfstraße 58-62, D-48149 Münster, Germany
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33
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Nakanishi T, Morokata T, Noto T, Kubo K, Umeno H, Kinugasa F, Eikyu Y, Kozuki Y, Seki N. Effect of the inosine 5'-monophosphate dehydrogenase inhibitor BMS-566419 on renal fibrosis in unilateral ureteral obstruction in rats. Int Immunopharmacol 2010; 10:1434-9. [PMID: 20832515 DOI: 10.1016/j.intimp.2010.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 08/12/2010] [Accepted: 08/18/2010] [Indexed: 02/07/2023]
Abstract
Chronic allograft nephropathy (CAN) is a major cause of late allograft loss. One morphological characteristic of CAN is renal interstitial fibrosis. Mycophenolate mofetil (MMF), the inosine 5'-monophosphate dehydrogenase (IMPDH) inhibitor, has been reported to attenuate the progression of renal interstitial fibrosis. However, the question of whether the newly synthesized IMPDH inhibitors with structures different from MMF have an antifibrotic effect remains unanswered. We evaluated the antifibrotic effects of BMS-566419, a chemically synthesized IMPDH inhibitor, using an experimental rat model, unilateral ureteral obstruction (UUO), in comparison with those of MMF. Expression levels of monocyte chemoattractant protein-1 (MCP-1) and transforming growth factor-beta1 (TGF-β1), which play important roles in UUO-induced renal fibrosis, were also investigated to determine the mechanism by which BMS-566419 affects the progression of renal fibrosis. After 14 days of UUO, interstitial fibrosis was frequently observed in the renal cortex of rats administered vehicle control. BMS-566419 by oral administration showed a significant and dose-dependent suppressive effect on UUO-induced renal fibrosis in histopathological experiments. BMS-566419 treatment also decreased collagen content, as indicated by hydroxyproline concentration, and the expression of collagen type 1 mRNA. BMS-566419 also decreased the expression of mRNA for both MCP-1 and TGF-β1. The antifibrotic effects of treatment with BMS-566419 at 60 mg/kg seemed comparable to those with MMF at 40 mg/kg. These results suggest that BMS-566419 and other chemically synthesized IMPDH inhibitors have beneficial pharmacological effects similar to those of MMF, and are potential pharmaceutical candidates in the treatment of fibrotic renal disease, including CAN.
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Affiliation(s)
- Tomonori Nakanishi
- Pharmacology Research Laboratories, Astellas Pharma Inc., Tsukuba-shi, Ibaraki, Japan.
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Huang C, Yan SJ, Li YM, Huang R, Lin J. Synthesis of polyhalo acridones as pH-sensitive fluorescence probes. Bioorg Med Chem Lett 2010; 20:4665-9. [DOI: 10.1016/j.bmcl.2010.05.101] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2010] [Revised: 05/10/2010] [Accepted: 05/27/2010] [Indexed: 10/19/2022]
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35
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Chen L, Petrelli R, Gao G, Wilson DJ, McLean GT, Jayaram HN, Sham YY, Pankiewicz KW. Dual inhibitors of inosine monophosphate dehydrogenase and histone deacetylase based on a cinnamic hydroxamic acid core structure. Bioorg Med Chem 2010; 18:5950-64. [PMID: 20650640 DOI: 10.1016/j.bmc.2010.06.081] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Revised: 06/19/2010] [Accepted: 06/23/2010] [Indexed: 11/17/2022]
Abstract
Small molecules that act on multiple biological targets have been proposed to combat the drug resistance commonly observed for cancer chemotherapy. By combining the structural features of known inhibitors of inosine monophosphate dehydrogense (IMPDH) and histone deacetylase (HDAC), dual inhibitors of IMPDH and HDAC based on the scaffold of cinnamic hydroxamic acid (CHA) have been designed, synthesized, and evaluated in biological assays. Key features, including the linker length, linker functionality, substitution position, and interacting groups, have been explored. Their individual contribution to the inhibitory activities against human IMPDH1 and IMPDH2 as well as HDAC has been assessed.
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Affiliation(s)
- Liqiang Chen
- Center for Drug Design, Academic Health Center, University of Minnesota, Minneapolis, MN 55455, USA.
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36
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Stankiewicz-Drogoń A, Dörner B, Erker T, Boguszewska-Chachulska AM. Synthesis of new acridone derivatives, inhibitors of NS3 helicase, which efficiently and specifically inhibit subgenomic HCV replication. J Med Chem 2010; 53:3117-26. [PMID: 20337460 DOI: 10.1021/jm901741p] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new goup of acridone derivatives, obtained by reaction of acridone-4-carboxylic acid derivatives with aromatic amines, was tested to determine the inhibitory properties toward the NS3 helicase of hepatitis C virus (HCV). Six compounds inhibited the NS3 helicase at low concentrations (IC(50) from 1.5 to 20 microM). The acridone derivatives probably act via intercalation into double-stranded nucleic acids with a strong specificity for double-stranded RNA, although an interaction with the enzyme cannot be excluded. Testing in the subgenomic HCV replicon system revealed that compounds 10 and 13 are efficient RNA replication inhibitors, with EC(50) of 3.5 and 1 microM and therapeutic indexes of >28 and 20, respectively. Compound 16, with EC(50) < 1 microM and TI > 1000, is extremely specific and practically noncytotoxic at the concentrations tested, proving that the acridone derivatives may be regarded as potential antiviral agents. Although the mechanism of action of 16 in the replicon system remains unclear, it is the key lead compound for further development of anti-HCV drugs.
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Wang R, Gregg BT, Zhang W, Golden KC, Quinn JF, Cui P, Tymoshenko DO. Rapid Ti(Oi-Pr)4 facilitated synthesis of α,α,α-trisubstituted primary amines by the addition of Grignard reagents to nitriles under microwave heating conditions. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.09.178] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Effect of the inosine 5'-monophosphate dehydrogenase inhibitor BMS-566419 on rat cardiac allograft rejection. Int Immunopharmacol 2009; 10:91-7. [PMID: 19840872 DOI: 10.1016/j.intimp.2009.09.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2009] [Revised: 09/15/2009] [Accepted: 09/19/2009] [Indexed: 01/06/2023]
Abstract
Inosine 5'-monophosphate dehydrogenase (IMPDH) inhibition is a critical target in solid organ transplantation, and the development of mycophenolate mofetil (MMF) represents a major advance in transplant medicine. In this study, the in vitro and in vivo pharmacological effects of BMS-566419, a novel chemically synthesized IMPDH inhibitor, were compared to those of mycophenolic acid (MPA) and MMF based on results from several immunological experiments. The in vitro inhibitory activity of BMS-566419 on IMPDH type I/II, immune cell proliferation and antibody production from lipopolysaccharide (LPS)-stimulated B cells was similar, albeit slightly less potent than that of MPA. In a rat heterotopic cardiac transplant model, monotherapy using orally administered BMS-566419 60mg/kg or MMF 40mg/kg prolonged the median survival time (MST) of transplanted grafts in the vehicle group from 5 to 18 and 18.5 days, respectively. In the presence of a sub-therapeutic dose of FK506, BMS-566419 30mg/kg and MMF 20mg/kg showed identical efficacy with an MST of 21.5 days. In dinitrophenol-LPS-stimulated rats in which calcineurin inhibitors failed to inhibit antibody production, in vivo oral administration of BMS-566419 resulted in antibody production suppression with similar efficacy to MMF. The in vivo antibody production against alloantigen was also suppressed by MMF or BMS-566419 treatment. In addition, gastrointestinal toxicity, considered a dose-limiting factor of MMF, was reduced in BMS-566419 treatment. These results suggest that BMS-566419 and other chemically synthesized IMPDH inhibitors have beneficial pharmacological effects similar to those of MMF, and are potential pharmaceutical candidates in transplant indications.
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Affiliation(s)
- Lizbeth Hedstrom
- Department of Biology, Brandeis University, MS009, 415 South Street, Waltham, Massachusetts 02454, USA.
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Sepúlveda CS, Fascio ML, Mazzucco MB, Palacios MLD, Pellón RF, García CC, D'Accorso NB, Damonte EB. Synthesis and evaluation of N-substituted acridones as antiviral agents against haemorrhagic fever viruses. Antivir Chem Chemother 2008; 19:41-7. [PMID: 18610557 DOI: 10.1177/095632020801900106] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND In the present study, a series of N-substituted acridone derivatives was synthesized and evaluated against two haemorrhagic fever viruses (HFV). METHODS Compounds were tested against Junin virus (JUNV), an arenavirus agent of Argentine haemorrhagic fever, and dengue virus (DENV), a flavivirus agent of the most prevalent arthropod-borne viral disease in humans. RESULTS Among tested compounds, two N-allyl acridones (derivatives 3c and 3f) elicited a potent and selective antiviral activity against JUNV (strain 1V4454) and DENV-2 (strain NGC) with 50% effective concentration values between 2.5 and 5.5 microM, as determined by virus yield inhibition. No cytotoxicity was detected at concentrations up to 1,000 microM, resulting in selectivity indices >181.8-400.0. Both acridones were effective against a wide spectrum of arenaviruses and the four serotypes of DENV. Furthermore, 3c and 3f failed to inactivate virus before cell infection as well as to induce a refractory state by cell pretreatment, indicating that the inhibitory effect was exerted through a blockade in virus multiplication during the infectious process. CONCLUSION These data are the first demonstration that acridone derivatives have a potent antiviral activity that block in vitro multiplication of HFV belonging to Arenaviridae and Flaviviridae, such as JUNV and DENV.
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Affiliation(s)
- Claudia S Sepúlveda
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, Argentina
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