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Asare KK, Azumah DE, Adu-Gyamfi CO, Opoku YK, Adela EM, Afful P, Abotsi GK, Abban EA, Duntu PE, Anyamful A, Moses AB, Botchway E, Mwintige P, Kyei S, Amoah LE, Ekuman EO. Comparison of microscopic and xpert MTB diagnoses of presumptive mycobacteria tuberculosis infection: retrospective analysis of routine diagnosis at Cape Coast Teaching Hospital. BMC Infect Dis 2024; 24:660. [PMID: 38956504 PMCID: PMC11218342 DOI: 10.1186/s12879-024-09566-9] [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: 01/09/2024] [Accepted: 06/25/2024] [Indexed: 07/04/2024] Open
Abstract
INTRODUCTION Tuberculosis is a global health problem that causes 1. 4 million deaths every year. It has been estimated that sputum smear-negative diagnosis but culture-positive pulmonary TB diagnosis contribute to 12.6% of pulmonary TB transmission. TB diagnosis by smear microscopy smear has a minimum detection limit (LOD) of 5,000 to 10,000 bacilli per milliliter (CFU/ml) of sputum result in missed cases and false positives. However, GeneXpert technology, with a LOD of 131-250 CFU/ml in sputum samples and its implementation is believe to facilitate early detection TB and drug-resistant TB case. Since 2013, Ghana health Service (GHS) introduce GeneXpert MTB/RIF diagnostic in all regional hospitals in Ghana, however no assessment of performance between microscopy and GeneXpert TB diagnosis cross the health facilities has been reported. The study compared the results of routine diagnoses of TB by microscopy and Xpert MTB from 2016 to 2020 at the Cape Coast Teaching Hospital (CCTH). METHODS The study compared routine microscopic and GeneXpert TB diagnosis results at the Cape Coast Teaching Hospital (CCTH) from 2016 to 2020 retrospectively. Briefly, sputum specimens were collected into 20 mL sterile screw-capped containers for each case of suspected TB infection and processed within 24 h. The samples were decontaminated using the NALC-NaOH method with the final NaOH concentration of 1%. The supernatants were discarded after the centrifuge and the remaining pellets dissolved in 1-1.5 ml of phosphate buffer saline (PBS) and used for diagnosis. A fixed smears were Ziehl-Neelsen acid-fast stain and observed under microscope and the remainings were used for GeneXpert MTB/RIF diagnosis. The data were analyze using GraphPad Prism. RESULTS 50.11% (48.48-51.38%) were females with an odd ratio (95% CI) of 1.004 (0.944-1.069) more likely to report to the TB clinic for suspected TB diagnosis. The smear-positive cases for the first sputum were 6.6% (5.98-7.25%), and the second sputum was 6.07% (5.45-6.73%). The Xpert MTB-RIF diagnosis detected 2.93% (10/341) (1.42-5.33%) in the first and 5.44% (16/294) (3.14-8.69%) in the second smear-negative TB samples. The prevalence of Xpert MTB-RIF across smear positive showed that males had 56.87% (178/313) and 56.15% (137/244) and females had 43.13% (135/313) and 43.85% (107/244) for the first and second sputum. Also, false negative smears were 0.18% (10/5607) for smear 1 and 0.31% (16/5126) for smear 2. CONCLUSION In conclusion, the study highlights the higher sensitivity of the GeneXpert assay compared to traditional smear microscopy for detecting MTB. The GeneXpert assay identified 10 and 16 positive MTB from smear 1 and smear 2 samples which were microscopic negative.
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Affiliation(s)
- Kwame Kumi Asare
- Biomedical and Clinical Research Centre, College of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana.
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana.
| | | | - Czarina Owusua Adu-Gyamfi
- Biomedical and Clinical Research Centre, College of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Yeboah Kwaku Opoku
- Department of Biology Education, Faculty of Science Education, University of Education, Winneba, Ghana
| | | | - Philip Afful
- Biomedical and Clinical Research Centre, College of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Godwin Kwami Abotsi
- Biomedical and Clinical Research Centre, College of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | | | - Paul Ekow Duntu
- Biomedical and Clinical Research Centre, College of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Medical Laboratory Science, School of Allied Health Sciences, College of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Akwasi Anyamful
- Biomedical and Clinical Research Centre, College of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Medical Biochemistry, School of Medical Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | | | - Emmanuel Botchway
- Laboratory Departments, Cape Coast Teaching Hospital, Cape Coast, Ghana
| | - Philimon Mwintige
- Laboratory Departments, Cape Coast Teaching Hospital, Cape Coast, Ghana
| | - Samuel Kyei
- Biomedical and Clinical Research Centre, College of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana
| | - Linda Eva Amoah
- Department of Immunology, Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana
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Jain PM, Gutierrez DA, Kumar S, Aguilera RJ, Karki SS. Synthesis of Novel Pyrazole-Oxindole Conjugates with Cytotoxicity in Human Cancer Cells via Apoptosis. Chem Biodivers 2023; 20:e202300843. [PMID: 37501576 PMCID: PMC10938640 DOI: 10.1002/cbdv.202300843] [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: 06/10/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 07/29/2023]
Abstract
A novel series of pyrazole-oxindole conjugates were prepared and characterized as potential cytotoxic agents by FT-IR, NMR and HR-MS. The cytotoxic activity of these compounds was tested in the Jurkat acute T cell leukemia, CEM acute lymphoblastic leukemia, MCF10 A mammary epithelial and MDA-MB 231 triple negative breast cancer cell lines. Among the tested conjugates, 5-methyl-3-((3-(1-phenyl)-3-(p-tolyl)-1H-pyrazol-4-yl)methylene)indolin-2-one 6h emerged as the most cytotoxic with a CC50 of 4.36+/-0.2 μM against Jurkat cells. The mechanism of cell death induced by 6h was investigated through the Annexin V-FITC assay via flow cytometry. Reactive oxygen species (ROS) accumulation, mitochondrial health and the cell cycle progression were also evaluated in cells exposed to 6h. Results demonstrated that 6h induces apoptosis in a dose-response manner, without generating ROS and/or altering mitochondrial health. In addition, 6h disrupted the cell cycle distribution causing an increase in DNA fragmentation (Sub G0-G1), and an arrest in the G0-G1 phase. Taken together, the 6h compound revealed a strong potential as an antineoplastic agent evidenced by its cytotoxicity in leukemia cells, the activation of apoptosis and restriction of the cell cycle progression.
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Affiliation(s)
- Pravesh M. Jain
- Department of Pharmaceutical Chemistry, KLE College of Pharmacy (A Constituent Unit of KLE Academy of Higher Education & Research-Belagavi), Rajajinagar, Bengaluru, Karnataka, INDIA-560010
| | - Denisse A. Gutierrez
- Cellular Characterization and Biorepository Core Facility, Border Biomedical Research Center, Department of Biological Sciences, College of Science, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968-0519, USA
| | - Sujeet Kumar
- Department of Pharmaceutical Chemistry, KLE College of Pharmacy (A Constituent Unit of KLE Academy of Higher Education & Research-Belagavi), Rajajinagar, Bengaluru, Karnataka, INDIA-560010
| | - Renato J. Aguilera
- Cellular Characterization and Biorepository Core Facility, Border Biomedical Research Center, Department of Biological Sciences, College of Science, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968-0519, USA
| | - Subhas S. Karki
- Department of Pharmaceutical Chemistry, KLE College of Pharmacy (A Constituent Unit of KLE Academy of Higher Education & Research-Belagavi), Rajajinagar, Bengaluru, Karnataka, INDIA-560010
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Ommi O, Naiyaz Ahmad M, Gajula SNR, Wanjari P, Sau S, Agnivesh PK, Sahoo SK, Kalia NP, Sonti R, Nanduri S, Dasgupta A, Chopra S, Yaddanapudi VM. Synthesis and pharmacological evaluation of 1,3-diaryl substituted pyrazole based (thio)urea derivatives as potent antimicrobial agents against multi-drug resistant Staphylococcus aureus and Mycobacterium tuberculosis. RSC Med Chem 2023; 14:1296-1308. [PMID: 37484564 PMCID: PMC10357928 DOI: 10.1039/d3md00079f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/08/2023] [Indexed: 07/25/2023] Open
Abstract
The urgent development of newer alternatives has been deemed a panacea for tackling emerging antimicrobial resistance effectively. Herein, we report the design, synthesis, and biological evaluation of 1,3-diaryl substituted pyrazole-based urea and thiourea derivatives as antimicrobial agents. Preliminary screening results revealed that compound 7a (3,4-dichlorophenyl derivative) exhibited potent activity against S. aureus (MIC = 0.25 μg mL-1) and compound 7j (2,4-difluorophenyl derivative) against Mycobacterium tuberculosis (MIC = 1 μg mL-1). Compounds 7a and 7j were non-toxic to Vero cells with a favorable selectivity index of 40 and 200, respectively, and demonstrated good microsomal stability. Compound 7a exhibited equipotent activity (MIC = 0.25 μg mL-1) against various multidrug-resistant strains of S. aureus, which include various strains of MRSA and VRSA, and elicited bacteriostatic properties. In an enzymatic assay, 7a effectively inhibited DNA gyrase supercoiling activity at a concentration of 8 times MIC. Further, molecular modeling studies suggested that compound 7a binds at the active site of DNA gyrase with good affinity.
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Affiliation(s)
- Ojaswitha Ommi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
| | - Mohammad Naiyaz Ahmad
- Division of Molecular Microbiology and Immunology, CSIR-Central Drug Research Institute Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 UP India
- AcSIR: Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Siva Nageswara Rao Gajula
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
| | - Parita Wanjari
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
| | - Shashikanta Sau
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
| | - Puja Kumari Agnivesh
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
| | - Santosh Kumar Sahoo
- Department of Pharmaceutical Chemistry, GITAM School of Pharmacy, GITAM University Visakhapatnam 530045 India
| | - Nitin Pal Kalia
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
| | - Rajesh Sonti
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
| | - Srinivas Nanduri
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
| | - Arunava Dasgupta
- Division of Molecular Microbiology and Immunology, CSIR-Central Drug Research Institute Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 UP India
- AcSIR: Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Sidharth Chopra
- Division of Molecular Microbiology and Immunology, CSIR-Central Drug Research Institute Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 UP India
- AcSIR: Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Venkata Madhavi Yaddanapudi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
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Nandurkar Y, Shinde A, Bhoye MR, Jagadale S, Mhaske PC. Synthesis and Biological Screening of New 2-(5-Aryl-1-phenyl-1 H-pyrazol-3-yl)-4-aryl Thiazole Derivatives as Potential Antimicrobial Agents. ACS OMEGA 2023; 8:8743-8754. [PMID: 36910954 PMCID: PMC9996765 DOI: 10.1021/acsomega.2c08137] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
A new series of 2-(5-aryl-1-phenyl-1H-pyrazol-3-yl)-4-aryl thiazoles (10a-ab) have been synthesized by a cyclocondensation reaction of 5-aryl-1-phenyl-1H-pyrazole-3-carbothioamide (7a-d) with substituted phenacyl bromide (8a-f). The structure of newly synthesized 2-(5-aryl-1-phenyl-1H-pyrazol-3-yl)-4-aryl thiazole (10a-ab) derivatives was characterized by spectroscopic analysis. The compounds 10a-ab were evaluated for in vitro antibacterial activity against Escherichia coli (NCIM 2574), Proteus mirabilis (NCIM 2388), Bacillus subtilis (NCIM 2063), Staphylococcus aureus (NCIM 2178), and in vitro antifungal activity against Aspergillus niger (ATCC 504) and Candida albicans (NCIM 3100). Among the twenty-eight pyrazolyl-thiazole derivatives, six compounds, 10g, 10h, 10i, 10j, 10o, and 10t, showed good activity against P. mirabilis; four compounds 10q, 10u, 10y, and 10z showed good activity against S. aureus; and twenty-four derivatives showed good antifungal activity against A. niger. Compounds 10g, 10q, 10r, 10s, and 10ab showed comparable activity with respect to the reference drug Ravuconazole. Thus, the significant antimicrobial activity of 2-(5-aryl-1-phenyl-1H-pyrazol-3-yl)-4-aryl thiazole (10a-ab) derivatives prompted that these scaffolds could assist in the development of lead compounds to treat microbial infections.
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Affiliation(s)
- Yogesh Nandurkar
- Post-Graduate
Department of Chemistry, S. P. Mandali’s
Sir Parashurambhau College, Tilak Road, Pune 411030, India
- Department
of Chemistry, Nowrosjee Wadia College, Pune 411001, India
| | - Abhijit Shinde
- Post-Graduate
Department of Chemistry, S. P. Mandali’s
Sir Parashurambhau College, Tilak Road, Pune 411030, India
| | - Manish R. Bhoye
- Post-Graduate
Department of Chemistry, S. P. Mandali’s
Sir Parashurambhau College, Tilak Road, Pune 411030, India
- Department
of Chemistry, S.N. Arts, D.J.M. Commerce
and B.N.S. Science College, Sangamner 422605, District Ahmednagar, India
| | - Shivaji Jagadale
- Department
of Chemistry, S.K. Gandhi Arts, Amolak Science
and P.H. Gandhi Commerce College Kada, Tal. Ashti 414202, District Beed, India
| | - Pravin Chimaji Mhaske
- Post-Graduate
Department of Chemistry, S. P. Mandali’s
Sir Parashurambhau College, Tilak Road, Pune 411030, India
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Synthesis, spectroscopic, quantum, thermal and kinetics, antibacterial and antifungal studies: Novel Schiff base 5-methyl-3-((5-bromosalicylidene) amino)- pyrazole and its transition metal complexes. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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Powerful Potential of Polyfluoroalkyl-Containing 4-Arylhydrazinylidenepyrazol-3-ones for Pharmaceuticals. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010059. [PMID: 36615256 PMCID: PMC9821843 DOI: 10.3390/molecules28010059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/08/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
4-Arylhydrazinylidene-5-(polyfluoroalkyl)pyrazol-3-ones (4-AHPs) were found to be obtained by the regiospecific cyclization of 2-arylhydrazinylidene-3-(polyfluoroalkyl)-3-oxoesters with hydrazines, by the azo coupling of 4-nonsubstituted pyrazol-5-oles with aryldiazonium chlorides or by the firstly discovered acid-promoted self-condensation of 2-arylhydrazinylidene-3-oxoesters. All the 4-AHPs had an acceptable ADME profile. Varying the substituents in 4-AHPs promoted the switching or combining of their biological activity. The polyfluoroalkyl residue in 4-AHPs led to the appearance of an anticarboxylesterase action in the micromolar range. An NH-fragment and/or methyl group instead of the polyfluoroalkyl one in the 4-AHPs promoted antioxidant properties in the ABTS, FRAP and ORAC tests, as well as anti-cancer activity against HeLa that was at the Doxorubicin level coupled with lower cytotoxicity against normal human fibroblasts. Some Ph-N-substituted 4-AHPs could inhibit the growth of N. gonorrhoeae bacteria at MIC 0.9 μg/mL. The possibility of using 4-AHPs for cell visualization was shown. Most of the 4-AHPs exhibited a pronounced analgesic effect in a hot plate test in vivo at and above the diclofenac and metamizole levels except for the ones with two chlorine atoms in the aryl group. The methylsulfonyl residue was proved to raise the anti-inflammatory effect also. A mechanism of the antinociceptive action of the 4-AHPs through blocking the TRPV1 receptor was proposed and confirmed using in vitro experiment and molecular docking.
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Structural and mutational analysis of MazE6-operator DNA complex provide insights into autoregulation of toxin-antitoxin systems. Commun Biol 2022; 5:963. [PMID: 36109664 PMCID: PMC9477884 DOI: 10.1038/s42003-022-03933-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/30/2022] [Indexed: 11/29/2022] Open
Abstract
Of the 10 paralogs of MazEF Toxin-Antitoxin system in Mycobacterium tuberculosis, MazEF6 plays an important role in multidrug tolerance, virulence, stress adaptation and Non Replicative Persistant (NRP) state establishment. The solution structures of the DNA binding domain of MazE6 and of its complex with the cognate operator DNA show that transcriptional regulation occurs by binding of MazE6 to an 18 bp operator sequence bearing the TANNNT motif (-10 region). Kinetics and thermodynamics of association, as determined by NMR and ITC, indicate that the nMazE6-DNA complex is of high affinity. Residues in N-terminal region of MazE6 that are key for its homodimerization, DNA binding specificity, and the base pairs in the operator DNA essential for the protein-DNA interaction, have been identified. It provides a basis for design of chemotherapeutic agents that will act via disruption of TA autoregulation, leading to cell death. The dimeric MazE6 antitoxin binds to a specific sequence in its cognate operator DNA for autoregulation, and the key residues for dimerization and DNA binding are identified.
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Allaka BS, Basavoju S, Gamidi RK. Transition Metal‐ and Oxidant‐Free Regioselective Synthesis of 3,4,5‐Trisubstituted Pyrazoles by Means of [3+2] Cycloaddition Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Bhargava Sai Allaka
- Department of Chemistry National Institute of Technology Warangal Hanamkonda 506 004 Telangana India
| | - Srinivas Basavoju
- Department of Chemistry National Institute of Technology Warangal Hanamkonda 506 004 Telangana India
| | - Rama Krishna Gamidi
- Organic Chemistry Division CSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pune Maharashtra 411 008 India
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Santos GC, Rocha IO, Stefanello FS, Copetti JPP, Tisoco I, Martins MAP, Zanatta N, Frizzo CP, Iglesias BA, Bonacorso HG. Investigating ESIPT and donor-acceptor substituent effects on the photophysical and electrochemical properties of fluorescent 3,5-diaryl-substituted 1-phenyl-2-pyrazolines. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 269:120768. [PMID: 34952444 DOI: 10.1016/j.saa.2021.120768] [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: 10/01/2021] [Revised: 12/01/2021] [Accepted: 12/12/2021] [Indexed: 06/14/2023]
Abstract
This paper describes the synthesis, structural study, and evaluation of electrochemical and photophysical properties by UV-Vis absorption and fluorescence emission analysis (solution and solid-state) of a series of eight 3,5-aryl-substituted 1-phenyl-2-pyrazolines (5), where 3-aryl = 2-OH-C6H4 (5a-g) or Ph (5h), and 5-aryl = Ph (a, h), 1-naphthyl (b), 4-Br-C6H4 (c), 4-F-C6H4 (d), 4-OCH3-C6H4(e), 4-NO2-C6H4 (f), 4-(N(CH3)2)-C6H4(g). The UV-Vis absorption properties of 2-pyrazolines were evaluated in DCM, MeCN, AcOEt, EtOH, and DMSO as the solvent and showed a fluorescence shift for the polar aprotic solvents. The steady-state fluorescence emission exhibited a band in the blue region when excited at the least energetic transition of each compound, although the excited-state intramolecular proton (ESIPT) effect was not detected. In the solid state, compounds presented similar behavior regarding absorption and emission properties compared to the solution assays. With the electrochemical analyses performed for the synthesized 2-pyrazolines, it was possible to conclude that the redox potentials were influenced by the electronic and steric effects of the substituents on the aryl rings and, according to the electronic nature of the substituents, which electron-donating groups were favored. Finally, the TD-DFT analyses revealed that all compounds had delocalized electron density throughout the 2-pyrazolines unit and were not influenced by the substituent bonded at C-5. Nonetheless, LUMO orbital analysis showed that only derivatives 5b and 5f have this localized density over the substituents.
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Affiliation(s)
- Gabriel C Santos
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Inaiá O Rocha
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Felipe S Stefanello
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - João P P Copetti
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Isadora Tisoco
- Laboratório de Bioinorgânica e Materiais Porfirínicos, Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Marcos A P Martins
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Clarissa P Frizzo
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Bernardo A Iglesias
- Laboratório de Bioinorgânica e Materiais Porfirínicos, Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Helio G Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil.
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Kumar S, Gupta S, Rani V, Sharma P. Pyrazole Containing Anti-HIV Agents: An Update. Med Chem 2022; 18:831-846. [PMID: 34994333 DOI: 10.2174/1573406418666220106163846] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Pyrazole scaffolds have gained importance in drug discovery and development for various pharmacological activities like antiviral, antifungal, anticancer, antidepressant, anti-inflammatory, antibacterial, etc. Additionally, the pyrazole moiety has shown potent anti-HIV activity as a core heterocycle or substituted heterocycles derivatives (mono, di, tri, tetra, and fused pyrazole derivatives). To assist the development of further potential anti-HIV agents containing pyrazole nucleus, here we have summarized pyrazole containing anti-HIV compounds that have been reported by researchers all over the world for the last two decades. OBJECTIVE The present review concentrates on an assortment of pyrazole containing compounds, particularly for potential therapeutic activity against HIV. METHODS Google Scholar, Pubmed, and SciFinder were searched databases with ''pyrazol'' keywords. Further, the year of publication and keywords ''Anti-HIV'' filter was applied to obtain relevant reported literature for anti-HIV agents containing pyrazole as a core or substituted derivatives. RESULTS This review article has shown the comprehensive compilation of 220 compounds containing pyrazole nucleus and possessing anti-HIV activity by sorting approximately 40 research articles from 2001 to date. 1-(4-Benzoylpiperazin-1-yl)-2-(4-fluoro-7-(1H-pyrazol-3-yl)-1H-pyrrolo[2,3-c]pyridin-3-yl)ethane-1,2-dione (13), 3-(3-(2-(4-benzoylpiperazin-1-yl)-2-oxoacetyl)-4-fluoro-1H-pyrrolo[2,3-c]pyridin-7-yl)-1H-pyrazole-5-carboxamide (31), 3-(3-(2-(4-benzoylpiperazin-1-yl)-2-oxoacetyl)-4-fluoro-1H-pyrrolo[2,3-c]pyridin-7-yl)-1H-pyrazole-5-carboxamide (88), 3-cyanophenoxypyrazole derivative (130), and 4-(4-chlorophenyl)-5-(4-methyl-5-((4-nitrophenyl)diazenyl)thiazol-2-yl)-3-phenyl-5,6-dihydro-4H-pyrazolo[4,3-d]isoxazole (178) were the most potent mono-, di-, tri-, tetra-substituted, and fused pyrazole derivatives, respectively, which have shown potent anti-HIV activity among all the described derivatives as compared with standard anti-HIV drugs. CONCLUSION This review article provides an overview of the potential therapeutic activity of pyrazole derivatives against HIV that will be helpful for designing pyrazole containing compounds for anti-HIV activity.
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Affiliation(s)
- Sanjay Kumar
- Punjab Biotechnology Incubator, Mohali, Punjab - 160 059, India
- Regional Advance Water Testing Laboratory, Mohali, Punjab - 160 059, India
| | - Shiv Gupta
- Division of Research and Development, Lovely Professional University, Phagwara, Punjab - 144 411, India
| | - Varsha Rani
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, UP, 221005, India
| | - Priyanka Sharma
- Biocon Bristol Myers Squibb Syngene International Pvt. Ltd., Bangalore - 560 099, India
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CuI-catalyzed sulfenylation of 1-aryl trifluoromethyl pyrazolones: Direct formation of C-S-C bond using aryl iodides and carbon disulfide. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2021.109920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Shchegolkov EV, Burgart YV, Matsneva DA, Borisevich SS, Kadyrova RA, Orshanskaya IR, Zarubaev VV, Saloutin VI. Polyfluoroalkylated antipyrines in Pd-catalyzed transformations. RSC Adv 2021; 11:35174-35181. [PMID: 35493195 PMCID: PMC9042801 DOI: 10.1039/d1ra06967e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/21/2021] [Indexed: 01/08/2023] Open
Abstract
In the direct C–H arylation with arylhalogenides in the presence of Pd(OAc)2, trifluoromethyl-containing antipyrine reacts very slowly and incompletely owing to the low nucleophilicity of its C4 center. However, it was effective in modifying polyfluoroalkyl-substituted 4-bromo- and 4-iodo antipyrines by the Suzuki and Sonogashira reactions. It was established that using Pd2(dba)3 as catalyst and XPhos as phosphine ligand was the optimal catalytic system for the synthesis of 4-aryl- and 4-phenylethynyl-3-polyfluoroalkyl-antipyrines. Moreover, iodo-derivatives as the initial reagents were found to be more advantageous compared to bromo-containing analogs. It was found that 4-phenylethynyl-5-CF3-antipyrine has a moderate activity against the influenza virus A/Puerto Rico/8/34 (H1N1) and 4-iodo-5-CF3-antipyrine reveals a weak activity against the vaccine virus (strain Copenhagen) and bovine diarrhea virus (strain VC-1). Peculiarities of heterocyclic systems with electron-withdrawing groups (polyfluoroalkyl-containing antipyrines) in Pd-catalyzed C–H arylation and cross-coupling reactions.![]()
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Affiliation(s)
- Evgeny V Shchegolkov
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
| | - Yanina V Burgart
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
| | - Daria A Matsneva
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
| | - Sophia S Borisevich
- Ufa Institute of Chemistry, Russian Academy of Sciences 71 October Ave. Ufa 450054 Russia
| | - Renata A Kadyrova
- Saint Petersburg Pasteur Research Institute of Epidemiology and Microbiology 14 Mira St. Saint-Petersburg 197101 Russia
| | - Iana R Orshanskaya
- Saint Petersburg Pasteur Research Institute of Epidemiology and Microbiology 14 Mira St. Saint-Petersburg 197101 Russia
| | - Vladimir V Zarubaev
- Saint Petersburg Pasteur Research Institute of Epidemiology and Microbiology 14 Mira St. Saint-Petersburg 197101 Russia
| | - Victor I Saloutin
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
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13
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Kumar G, Saroha B, Kumar R, Kumari M, Dalal S, Kumar S. Design, synthesis, biological evaluation, and molecular docking studies of some novel
N
,
N
‐dimethylaminopropoxy‐substituted aurones. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Gourav Kumar
- Department of Chemistry Kurukshetra University Kurukshetra India
| | - Bhavna Saroha
- Department of Chemistry Kurukshetra University Kurukshetra India
| | - Ramesh Kumar
- Department of Chemistry Kurukshetra University Kurukshetra India
| | - Meena Kumari
- Department of Chemistry Govt. College for Women, Badhra Charkhi Dadri India
| | - Sunita Dalal
- Department of Biotechnology Kurukshetra University Kurukshetra India
| | - Suresh Kumar
- Department of Chemistry Kurukshetra University Kurukshetra India
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14
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Baeva LA, Gataullin RR. Reaction of 3-(Alkylsulfanylmethyl)pentane-2,4-diones and 4-(Alkylsulfanyl)-3-(alkylsulfanylmethyl)butan-2-ones with Phenylhydrazine in the Presence of Zinc Chloride. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021070174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Antiqueira-Santos P, Teixeira WKO, Flores AFC, Piovesan LA, Nery LEM, Votto APDS. Synthesis of pyrazoline fatty chain derivatives and its effects on melanoma cells. Bioorg Med Chem Lett 2021; 41:127988. [PMID: 33775838 DOI: 10.1016/j.bmcl.2021.127988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/14/2021] [Accepted: 03/21/2021] [Indexed: 10/21/2022]
Abstract
Skin cancer is the most common type of cancer in Brazil, representing 30% of all cases. Among these, melanoma represents only 3% of malignant neoplasms; however, it is the most serious and has a high capacity for metastasis. For this reason, it is extremely important to identify more efficient compounds and treatments that stop or decrease the proliferation of melanoma, even in its more advanced stages. This work reports the synthesis and biological evaluation of two homologous series of pyrazoline fatty chain derivatives as potent antitumoral agents in the melanoma B16F10 cell line. Cells were treated with pyrazoline fatty chain compounds (3, 30, 300, and 3000 μM) for 0, 24, 48, and 72 h. Decreased cell viability was observed when using most compounds at different concentrations and times. The structure-activity relationship (SAR) between antitumoral activity and the number of carbons and lipophilicity, as well as the oxygen-sulfur bioisosteric exchange, was evaluated. Among the tested derivatives, the lipophilic compounds 5-hydroxy-5-(trifluoromethyl)-3-undecyl-4,5-dihydro-1H-pyrazole-1-carboxamide (2d) and 5-hydroxy-5-(trifluoromethyl)-3-undecyl-4,5-dihydro-1H-pyrazole-1-thiocarboxamide (3d) showed the best results in the B16F10 cell line, as they produced the best cell viability decrease effects. The presence of fatty unbranched undecyl chain in the molecular structure appears to be important for its antimelanoma properties.
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Affiliation(s)
- Priscila Antiqueira-Santos
- Programa de Pós-graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Laboratório de Cultura Celular, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande do Sul, Brazil
| | | | - Alex Fabiani Claro Flores
- LEESH, Escola de Química e Alimentos, Universidade Federal do Rio Grande - FURG, Rio Grande 96203-900 RS, Brazil
| | - Luciana Almeida Piovesan
- Nanobusiness Informação e Inovação Ltda, Incubadora de Projetos, Instituto Nacional de Metrologia, Qualidade e Tecnologia - INMETRO, Duque de Caxias, Rio de Janeiro, Brazil
| | - Luiz Eduardo Maia Nery
- Programa de Pós-graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil
| | - Ana Paula de Souza Votto
- Programa de Pós-graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Laboratório de Cultura Celular, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande do Sul, Brazil.
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16
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Mukhtar SS, Hassan AS, Morsy NM, Hafez TS, Saleh FM, Hassaneen HM. Design, synthesis, molecular prediction and biological evaluation of pyrazole-azomethine conjugates as antimicrobial agents. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1894338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Shorouk S. Mukhtar
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Dokki, Egypt
| | - Ashraf S. Hassan
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Dokki, Egypt
| | - Nesrin M. Morsy
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Dokki, Egypt
| | - Taghrid S. Hafez
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Dokki, Egypt
| | - Fatma M. Saleh
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Hamdi M. Hassaneen
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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17
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Yakypova LR, Baeva LA, Safiullin RL. Reactivity of Peroxyl Radicals with 5-Methyl-4-[(Propylsulfanyl)methyl]-2,4-Dihydro-3H-Pyrazol-3-one. KINETICS AND CATALYSIS 2021. [DOI: 10.1134/s0023158421010134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Triazole-containing hybrids with anti- Mycobacterium tuberculosis potential - Part I: 1,2,3-Triazole. Future Med Chem 2021; 13:643-662. [PMID: 33619989 DOI: 10.4155/fmc-2020-0301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Tuberculosis regimens currently applied in clinical practice require months of multidrug therapy, which imposes a major challenge of patient compliance and drug resistance development. Moreover, because of the increasing emergence of hard-to-treat tuberculosis, this disease continues to be a significant threat to the human population. 1,2,3-triazole as a privileged structure has been widely used as an effective template for drug discovery, and 1,2,3-triazole-containing hybrids that can simultaneously act on dual or multiple targets in Mycobacterium tuberculosis have the potential to circumvent drug resistance, enhance efficacy, reduce side effects and improve pharmacokinetic as well as pharmacodynamic profiles. Thus, 1,2,3-triazole-containing hybrids are useful scaffolds for the development of antitubercular agents. This review aims to highlight recent advances of 1,2,3-triazole-containing hybrids with potential activity against various forms of M. tuberculosis, covering articles published between 2015 and 2020. The structure-activity relationship and the mechanism of action are also discussed to facilitate further rational design of more effective drug candidates.
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19
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Jagadale SM, Abhale YK, Pawar HR, Shinde A, Bobade VD, Chavan AP, Sarkar D, Mhaske PC. Synthesis of New Thiazole and Pyrazole Clubbed 1,2,3-Triazol Derivatives as Potential Antimycobacterial and Antibacterial Agents. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1857272] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Shivaji M. Jagadale
- Post-Graduate Department of Chemistry, S. P. Mandali’s Sir Parashurambhau College, Tilak Road, Pune, India (Affiliated to Savitribai Phule Pune University)
- Department of Chemistry, S.K. Gandhi Arts, Amolak Science and P.H. Gandhi Commerce College Kada, Tal. Ashti, District Beed, India(Affiliated to Dr. Babasaheb Ambedkar Marathwada University, Aurangabad)
| | - Yogita K. Abhale
- Department of Chemistry, Government College, Daman, India (Affiliated to Veer Narmad Gujarat University, Surat)
| | - Hari R. Pawar
- Department of Chemistry, Government College, Daman, India (Affiliated to Veer Narmad Gujarat University, Surat)
| | - Abhijit Shinde
- Department of Chemistry, Abasaheb Garware College, Pune, India (Affiliated to Savitribai Phule Pune University)
| | - Vivek D. Bobade
- Post-Graduate Department of Chemistry, H. P. T. Arts and R. Y. K. Science College, Nashik, India (Affiliated to Savitribai Phule Pune University)
| | - Abhijit P. Chavan
- Post-Graduate Department of Chemistry, S. P. Mandali’s Sir Parashurambhau College, Tilak Road, Pune, India (Affiliated to Savitribai Phule Pune University)
| | - Dhiman Sarkar
- CombiChemBio Resource Centre, CSIR-National Chemical Laboratory, Pune, India
| | - Pravin C. Mhaske
- Post-Graduate Department of Chemistry, S. P. Mandali’s Sir Parashurambhau College, Tilak Road, Pune, India (Affiliated to Savitribai Phule Pune University)
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20
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Varma RR, Pandya JG, Vaidya FU, Pathak C, Bhatt BS, Patel MN. Biological activities of pyrazoline-indole based Re(I) carbonyls: DNA interaction, antibacterial, anticancer, ROS production, lipid peroxidation, in vivo and in vitro cytotoxicity studies. Chem Biol Interact 2020; 330:109231. [DOI: 10.1016/j.cbi.2020.109231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 08/07/2020] [Accepted: 08/20/2020] [Indexed: 01/28/2023]
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21
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Burgart YV, Agafonova NA, Shchegolkov EV, Krasnykh OP, Kushch SO, Evstigneeva NP, Gerasimova NA, Maslova VV, Triandafilova GA, Solodnikov SY, Ulitko MV, Makhaeva GF, Rudakova EV, Borisevich SS, Zilberberg NV, Kungurov NV, Saloutin VI, Chupakhin ON. Multiple biological active 4-aminopyrazoles containing trifluoromethyl and their 4-nitroso-precursors: Synthesis and evaluation. Eur J Med Chem 2020; 208:112768. [PMID: 32932211 DOI: 10.1016/j.ejmech.2020.112768] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/10/2020] [Accepted: 08/15/2020] [Indexed: 01/04/2023]
Abstract
4-Nitroso-3-trifluoromethyl-5-alkyl[(het)aryl]pyrazoles were synthesized via one-pot nitrosation of 1,3-diketones or their lithium salts followed by treatment of hydrazines. Reduction of nitroso-derivatives made it possible to obtain 4-amino-3-trifluoromethylpyrazoles chlorides. According to computer-aided calculations, all synthesized compounds are expected to have acceptable ADME profile for drug design. Tuberculostatic, antibacterial, antimycotic, antioxidant and cytotoxic activities of the compounds were evaluated in vitro, while their analgesic and anti-inflammatory action was tested in vivo along with acute toxicity studies. N-Unsubstituted 4-nitrosopyrazoles were the most effective tuberculostatics (MIC to 0.36 μg/ml) and antibacterial agents against Streptococcus pyogenes (MIC to 7.8 μg/ml), Staphylococcus aureus,S. aureus MRSA and Neisseria gonorrhoeae (MIC to 15.6 μg/ml). 4-Nitroso-1-methyl-5-phenylpyrazole had the pronounced antimycotic action against a wide range of fungi (Trichophytonrubrum, T. tonsurans, T. violaceum, T. interdigitale, Epidermophytonfloccosum, Microsporumcanis with MIC 0.38-12.5 μg/ml). N-Unsubstituted 4-aminopyrazoles shown high radical-scavenging activity in ABTS test, ORAC/AAPH and oxidative erythrocyte hemolysis assays. 1-Methyl-5-phenyl-3-trifluoromethylpyrazol-4-aminium chloride revealed potential anticancer activity against HeLa cells (SI > 1351). The pronounced analgesic activity was found for 4-nitroso- and 4-aminopyrazoles having phenyl fragment at the position 5 in "hot plate" test. The most of the obtained pyrazoles had a moderate acute toxicity.
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Affiliation(s)
- Yanina V Burgart
- Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Science, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia; Ural Federal University Named After the First President of Russia B.N. Yeltsin, Mira St. 19, Ekaterinburg, 620002, Russia
| | - Natalia A Agafonova
- Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Science, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia
| | - Evgeny V Shchegolkov
- Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Science, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia; Ural Federal University Named After the First President of Russia B.N. Yeltsin, Mira St. 19, Ekaterinburg, 620002, Russia
| | - Olga P Krasnykh
- Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm, 614990, Russia
| | - Svetlana O Kushch
- Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Science, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia
| | - Natalia P Evstigneeva
- Ural Research Institute for Dermatology, Venereology and Immunopathology, Shcherbakova St., 8, Ekaterinburg, 620076, Russia
| | - Natalia A Gerasimova
- Ural Research Institute for Dermatology, Venereology and Immunopathology, Shcherbakova St., 8, Ekaterinburg, 620076, Russia
| | - Vera V Maslova
- Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm, 614990, Russia
| | - Galina A Triandafilova
- Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm, 614990, Russia
| | - Sergey Yu Solodnikov
- Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm, 614990, Russia
| | - Maria V Ulitko
- Ural Federal University Named After the First President of Russia B.N. Yeltsin, Mira St. 19, Ekaterinburg, 620002, Russia
| | - Galina F Makhaeva
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences, Severny Proezd 1, Chernogolovka, 142432, Russia
| | - Elena V Rudakova
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences, Severny Proezd 1, Chernogolovka, 142432, Russia
| | - Sophia S Borisevich
- Ufa Institute of Chemistry of Russian Academy of Science, Octyabrya Av., 71, Ufa, 450078, Russia
| | - Natalia V Zilberberg
- Ural Research Institute for Dermatology, Venereology and Immunopathology, Shcherbakova St., 8, Ekaterinburg, 620076, Russia
| | - Nikolai V Kungurov
- Ural Research Institute for Dermatology, Venereology and Immunopathology, Shcherbakova St., 8, Ekaterinburg, 620076, Russia
| | - Victor I Saloutin
- Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Science, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia; Ural Federal University Named After the First President of Russia B.N. Yeltsin, Mira St. 19, Ekaterinburg, 620002, Russia.
| | - Oleg N Chupakhin
- Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Science, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia; Ural Federal University Named After the First President of Russia B.N. Yeltsin, Mira St. 19, Ekaterinburg, 620002, Russia
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22
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Synthesis of New Oxindoles and Determination of Their Antibacterial Properties. HETEROATOM CHEMISTRY 2020. [DOI: 10.1155/2020/8021920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A versatile method for the synthesis of new oxindoles was developed by the reaction between substituted isatins and 5-aminopyrazoles. The reaction was carried out at room temperature in ethanol using p-toluenesulfonic acid as the catalyst. The products were obtained with acceptable to excellent yields (44–96%). Structures of the new compounds were unambiguously established by spectroscopic and analytical techniques. The antibacterial activity was determined by microdilution assays. Compounds 3b, 3e, and 3g showed antistaphylococcal activity, particularly compound 3e displayed a potent activity against the vancomycin intermediate Staphylococcus aureus (VISA). Compounds 3i, 3j, and 3o inhibited Neisseria gonorrhoeae growth.
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23
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Nguyen QH, Guo SM, Royal T, Baudoin O, Cramer N. Intermolecular Palladium(0)-Catalyzed Atropo-enantioselective C–H Arylation of Heteroarenes. J Am Chem Soc 2020; 142:2161-2167. [DOI: 10.1021/jacs.9b12299] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Qui-Hien Nguyen
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Shu-Min Guo
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Titouan Royal
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Olivier Baudoin
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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Kamal R, Kumar R, Kumar V, Bhardwaj V. Synthetic Utilization of α,β‐Chalcone Dibromide In Heterocyclic Chemistry and Stereoselective Debromination. ChemistrySelect 2019. [DOI: 10.1002/slct.201902262] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Raj Kamal
- Department of ChemistryKurukshetra University Kurukshetra Haryana India- 136119
| | - Ravinder Kumar
- Department of ChemistryKurukshetra University Kurukshetra Haryana India- 136119
| | - Vipan Kumar
- Department of ChemistryKurukshetra University Kurukshetra Haryana India- 136119
| | - Vikas Bhardwaj
- Department of ChemistrySeth Jai Parkash Mukad Lal Institute of Engineering and Technology Radaur. Yamunanagar Haryana 135133 India
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Kannan D, Naveen S, Jagadeesan G, Lokanath NK, Thennarasu S. Ultrasonic Cavitation Facilitates Rapid Synthesis of Trisubstituted Pyrazole Scaffolds through Michael Addition/Domino Cyclization. ChemistrySelect 2019. [DOI: 10.1002/slct.201902126] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Damodharan Kannan
- Department of Organic and Bioorganic ChemistryCSIR-Central Leather Research Institute, Adyar 600020. Tamilnadu Chennai India
| | - Shivalingegowda Naveen
- Department of PhysicsSchool of Engineering & TechnologyJain (Deemed) University Bangalore 562112 India
| | | | | | - Sathiah Thennarasu
- Department of Organic and Bioorganic ChemistryCSIR-Central Leather Research Institute, Adyar 600020. Tamilnadu Chennai India
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Saini P, Bari S, Sahoo SC, Khullar S, Mandal SK, Bhalla A. Stereoselective synthesis and characterization of novel trans-4-(thiophenyl)pyrazolyl-β-lactams and their C–3 functionalization. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.07.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Ultrasonication-ionic liquid synergy for the synthesis of new potent anti-tuberculosis 1,2,4-triazol-1-yl-pyrazole based spirooxindolopyrrolizidines. Bioorg Med Chem Lett 2019; 29:1682-1687. [DOI: 10.1016/j.bmcl.2019.04.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 03/24/2019] [Accepted: 04/16/2019] [Indexed: 11/17/2022]
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Chen F, Fang Y, Zhao R, Le J, Zhang B, Huang R, Chen Z, Shao J. Evolution in medicinal chemistry of sorafenib derivatives for hepatocellular carcinoma. Eur J Med Chem 2019; 179:916-935. [PMID: 31306818 DOI: 10.1016/j.ejmech.2019.06.070] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 06/26/2019] [Accepted: 06/26/2019] [Indexed: 02/06/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignant tumors. Traditional chemotherapy drugs are hard to reach a satisfactory therapeutic effect since advanced HCC is highly chemo-resistant. Sorafenib is an oral multikinase inhibitor that can suppress tumor cell proliferation, angiogenesis and induce cancer cell apoptosis. However, the poor solubility, rapid metabolism and low bioavailability of sorafenib greatly restricted its further clinical application. During the past decade, numerous sorafenib derivatives have been designed and synthesized to overcome its disadvantages and improve its clinical performance. This article focuses on the therapeutic effects and mechanisms of various sorafenib derivatives with modifications on the N-methylpicolinamide group, urea group, central aromatic ring or others. More importantly, this review summarizes the current status of the structure-activity relationship (SAR) of reported sorafenib derivatives, which can provide some detailed information of future directions for further structural modifications of sorafenib to discovery new anti-tumor drugs with improved clinical performance.
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Affiliation(s)
- Fangmin Chen
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Yifan Fang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Ruirui Zhao
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Jingqing Le
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Bingchen Zhang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Rui Huang
- Marine Drug R&D Center, Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Zixuan Chen
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Jingwei Shao
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, 350116, China; Marine Drug R&D Center, Institute of Oceanography, Minjiang University, Fuzhou, 350108, China.
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Modi P, Patel S, Chhabria M. Structure-based design, synthesis and biological evaluation of a newer series of pyrazolo[1,5-a]pyrimidine analogues as potential anti-tubercular agents. Bioorg Chem 2019; 87:240-251. [PMID: 30908967 DOI: 10.1016/j.bioorg.2019.02.044] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/23/2019] [Accepted: 02/20/2019] [Indexed: 11/16/2022]
Abstract
In-depth study of structure-based drug designing can provide vital leads for the development of novel, clinically active molecules. In this present study, twenty six novel pyrazolo[1,5-a]pyrimidine analogues (6a-6z) were designed using molecular docking studies. The designed molecules were synthesized in good yields. Structural elucidation of the synthesized molecules was carried out using IR, MS, 1H NMR and 13C NMR spectroscopy. All the synthesized compounds were evaluated for their in-vitro anti-tubercular activity against H37Rv strain by Alamar Blue assay method. Most of the synthesized compounds displayed potent anti-tubercular activities. Amongst all the tested compounds 6p, 6g, 6n and 6h exhibited promising anti-tubercular activity. Further, these potent compounds were gauged for MDR-TB, XDR-TB and cytotoxic study. None of these compounds exhibited potent cytotoxicity. Stability of protein ligand complex was further evaluated by molecular dynamics simulation for 10 ns. All these results indicate that the synthesized compounds could be potential leads for further development of new potent anti-tubercular agents.
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Affiliation(s)
- Palmi Modi
- Department of Pharmaceutical Chemistry, L. M. College of Pharmacy, Navrangpura, Ahmedabad, 380009 Gujarat, India; Department of Pharmacy, Dharmsinh Desai University, Nadiad, 387001 Gujarat, India; Department of Pharmaceutical Chemistry, L. J. Institute of Pharmacy, Ahmedabad, 382210 Gujarat, India
| | - Shivani Patel
- Department of Pharmaceutical Chemistry, L. M. College of Pharmacy, Navrangpura, Ahmedabad, 380009 Gujarat, India; Division of Biological and Life Sciences, Ahmedabad University, Ahmedabad, 380009 Gujarat, India
| | - Mahesh Chhabria
- Department of Pharmaceutical Chemistry, L. M. College of Pharmacy, Navrangpura, Ahmedabad, 380009 Gujarat, India.
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30
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Jacob C, Lamberth C. First synthesis and further derivatization of furo[3,2-c]pyrazol-6-ones. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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Pattanashetty SH, Hosamani K, Barretto DA. Microwave assisted synthesis, computational study and biological evaluation of novel quinolin-2(1H)-one based pyrazoline hybrids. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.cdc.2018.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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32
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Ivanova АЕ, Shchegol´kov EV, Burgart YV, Saloutin VI. Hydroxy- and alkoxymethylation of polyfluoroalkyl pyrazoles. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2104-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Topchiy MA, Zharkova DA, Asachenko AF, Muzalevskiy VM, Chertkov VA, Nenajdenko VG, Nechaev MS. Mild and Regioselective Synthesis of 3-CF3
-Pyrazoles by the AgOTf-Catalysed Reaction of CF3
-Ynones with Hydrazines. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800208] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Maxim A. Topchiy
- A. V. Topchiev Institute of Petrochemical Synthesis; Russian Academy of Sciences; Leninsky Prospect 29 Moscow Russia
| | - Daria A. Zharkova
- A. V. Topchiev Institute of Petrochemical Synthesis; Russian Academy of Sciences; Leninsky Prospect 29 Moscow Russia
- Department of Chemistry; Moscow State University; Leninskie Gory 119992 Moscow Russia
| | - Andrey F. Asachenko
- A. V. Topchiev Institute of Petrochemical Synthesis; Russian Academy of Sciences; Leninsky Prospect 29 Moscow Russia
| | | | | | | | - Mikhail S. Nechaev
- A. V. Topchiev Institute of Petrochemical Synthesis; Russian Academy of Sciences; Leninsky Prospect 29 Moscow Russia
- Department of Chemistry; Moscow State University; Leninskie Gory 119992 Moscow Russia
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34
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Synthesis, spectral characterization and X-ray crystal structure studies of 3-(benzo[d][1,3]dioxol-5-yl)-5-(3-methylthiophen-2-yl)-4,5-dihydro-1H-pyrazole-1-carboxamide: Hirshfeld surface, DFT and thermal analysis. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.068] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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35
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Roman G. 2-Naphthol-pyrazole conjugates as substrates in the Mannich reaction. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2017-0209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Several novel 2-naphthol-pyrazole conjugates have been synthesized through the O-alkylation of 1-[(3,5-dimethyl-1H-pyrazol-1-yl)methyl]naphthalen-2-ol with methyl iodide, benzyl chloride, methyl bromoacetate and N-benzyl-2-bromoacetamide. The aminomethylation of these 2-naphthol-pyrazole conjugates has been examined employing the classical conditions for the Mannich reaction, and also by using N,N-dimethylmethyleneiminium chloride as preformed aminomethylating reagent. In both situations, aminomethylation of these substrates occurred at C-4 of the pyrazole ring. The bifunctional substrate 1-[(3,5-dimethyl-1H-pyrazol-1-yl)methyl]naphthalen-2-ol has been chemoselectively aminomethylated in the pyrazole ring using the same preformed aminomethylating reagent.
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Affiliation(s)
- Gheorghe Roman
- Department of Inorganic Polymers , Petru Poni Institute of Macromolecular Chemistry , 700487 Iaşi , Romania
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36
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Nair D, Pavashe P, Namboothiri IN. 1,3-Dipolar cycloaddition of chalcones and arylidene-1,3-dicarbonyls with diazosulfone for the regioselective synthesis of functionalized pyrazoles and pyrazolines. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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37
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Usami Y, Kohno A, Yoneyama H, Harusawa S. Synthesis of Dihydrooxepino[3,2-c]Pyrazoles via Claisen Rearrangement and Ring-Closing Metathesis from 4-Allyloxy-1H-pyrazoles. Molecules 2018; 23:E592. [PMID: 29509713 PMCID: PMC6017168 DOI: 10.3390/molecules23030592] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 02/26/2018] [Accepted: 03/04/2018] [Indexed: 11/16/2022] Open
Abstract
Synthesis of novel pyrazole-fused heterocycles, i.e., dihydro-1H- or 2H-oxepino[3,2-c]pyrazoles (6 or 7) from 4-allyloxy-1H-pyrazoles (1) via combination of Claisen rearrangement and ring-closing metathesis (RCM) has been achieved. A suitable catalyst for the RCM of 5-allyl-4-allyloxy-1H-pyrazoles (4) was proved to be the Grubbs second generation catalyst (Grubbs2nd) to give the predicted RCM product at room temperature in three hours. The same reactions of the regioisomer, 3-allyl-4-allyloxy-1H-pyrazoles (5), also proceeded to give the corresponding RCM products. On the other hand, microwave aided RCM at 140 °C on both of 4 and 5 afforded mixtures of isomeric products with double bond rearrangement from normal RCM products in spite of remarkable reduction of the reaction time to 10 min.
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Affiliation(s)
- Yoshihide Usami
- Laboratory of Pharmaceutical Organic Chemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan.
| | - Aoi Kohno
- Laboratory of Pharmaceutical Organic Chemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan.
| | - Hiroki Yoneyama
- Laboratory of Pharmaceutical Organic Chemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan.
| | - Shinya Harusawa
- Laboratory of Pharmaceutical Organic Chemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan.
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38
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Kavitha T, Velraj G. Molecular structure, spectroscopic and docking analysis of 1,3-diphenylpyrazole-4-propionic acid: A good prostaglandin reductase inhibitor. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.11.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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39
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40
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Nemytova N, Shchegol’kov E, Burgart Y, Slepukhin P, Borisevich S, Khursan S, Saloutin V. Regiocontrolled N-, O- and C-methylation of 1-phenyl-3-polyfluoroalkyl-1H-pyrazol-5-ols. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2017.12.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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41
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Sodium ascorbate as an expedient catalyst for green synthesis of polysubstituted 5-aminopyrazole-4-carbonitriles and 6-amino-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitriles. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3260-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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42
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Ezzati M, Khalafy J, Marjani AP, Prager RH. An Efficient One-Pot, Four-Component Synthesis of Pyrazolo[3,4-b]pyridines Catalyzed by Tetrapropylammonium Bromide (TPAB) in Water. Aust J Chem 2018. [DOI: 10.1071/ch17642] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A novel and one-pot pseudo-four-component reaction between a series of arylglyoxals, malononitrile, 3-methyl-1-phenyl-1H-pyrazol-5-amine, and acetone in the presence of tetrapropylammonium bromide (TPAB) has been developed to synthesize a series of new substituted pyrazolo[3,4-b]pyridines, using water as an environmentally friendly solvent, in high to excellent yields.
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43
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Kang SM, Kim DH, Lee KY, Park SJ, Yoon HJ, Lee SJ, Im H, Lee BJ. Functional details of the Mycobacterium tuberculosis VapBC26 toxin-antitoxin system based on a structural study: insights into unique binding and antibiotic peptides. Nucleic Acids Res 2017; 45:8564-8580. [PMID: 28575388 PMCID: PMC5737657 DOI: 10.1093/nar/gkx489] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 05/25/2017] [Indexed: 11/16/2022] Open
Abstract
Toxin-antitoxin (TA) systems are essential for bacterial persistence under stressful conditions. In particular, Mycobacterium tuberculosis express VapBC TA genes that encode the stable VapC toxin and the labile VapB antitoxin. Under normal conditions, these proteins interact to form a non-toxic TA complex, but the toxin is activated by release from the antitoxin in response to unfavorable conditions. Here, we present the crystal structure of the M. tuberculosis VapBC26 complex and show that the VapC26 toxin contains a pilus retraction protein (PilT) N-terminal (PIN) domain that is essential for ribonuclease activity and that, the VapB26 antitoxin folds into a ribbon-helix-helix DNA-binding motif at the N-terminus. The active site of VapC26 is sterically blocked by the flexible C-terminal region of VapB26. The C-terminal region of free VapB26 adopts an unfolded conformation but forms a helix upon binding to VapC26. The results of RNase activity assays show that Mg2+ and Mn2+ are essential for the ribonuclease activity of VapC26. As shown in the nuclear magnetic resonance spectra, several residues of VapB26 participate in the specific binding to the promoter region of the VapBC26 operon. In addition, toxin-mimicking peptides were designed that inhibit TA complex formation and thereby increase toxin activity, providing a novel approach to the development of new antibiotics.
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Affiliation(s)
- Sung-Min Kang
- The Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Do-Hee Kim
- The Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Ki-Young Lee
- The Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Sung Jean Park
- College of Pharmacy, Gachon University, 534-2 Yeonsu-dong, Yeonsu-gu, Incheon 406-799, Republic of Korea
| | - Hye-Jin Yoon
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 151-742, Republic of Korea
| | - Sang Jae Lee
- The Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Hookang Im
- The Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Bong-Jin Lee
- The Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Gwanak-gu, Seoul 151-742, Republic of Korea
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44
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Solution NMR Studies of Mycobacterium tuberculosis Proteins for Antibiotic Target Discovery. Molecules 2017; 22:molecules22091447. [PMID: 28858250 PMCID: PMC6151718 DOI: 10.3390/molecules22091447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 08/27/2017] [Indexed: 11/17/2022] Open
Abstract
Tuberculosis is an infectious disease caused by Mycobacteriumtuberculosis, which triggers severe pulmonary diseases. Recently, multidrug/extensively drug-resistant tuberculosis strains have emerged and continue to threaten global health. Because of the development of drug-resistant tuberculosis, there is an urgent need for novel antibiotics to treat these drug-resistant bacteria. In light of the clinical importance of M. tuberculosis, 2067 structures of M. tuberculsosis proteins have been determined. Among them, 52 structures have been solved and studied using solution nuclear magnetic resonance (NMR). The functional details based on structural analysis of M. tuberculosis using NMR can provide essential biochemical data for the development of novel antibiotic drugs. In this review, we introduce diverse structural and biochemical studies on M. tuberculosis proteins determined using NMR spectroscopy.
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45
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Azzali E, Machado D, Kaushik A, Vacondio F, Flisi S, Cabassi CS, Lamichhane G, Viveiros M, Costantino G, Pieroni M. Substituted N-Phenyl-5-(2-(phenylamino)thiazol-4-yl)isoxazole-3-carboxamides Are Valuable Antitubercular Candidates that Evade Innate Efflux Machinery. J Med Chem 2017; 60:7108-7122. [PMID: 28749666 DOI: 10.1021/acs.jmedchem.7b00793] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tuberculosis remains one of the deadliest infectious diseases in the world, and the increased number of multidrug-resistant and extremely drug-resistant strains is a significant reason for concern. This makes the discovery of novel antitubercular agents a cogent priority. We have previously addressed this need by reporting a series of substituted 2-aminothiazoles capable to inhibit the growth of actively replicating, nonreplicating persistent, and resistant Mycobacterium tuberculosis strains. Clues from the structure-activity relationships lining up the antitubercular activity were exploited for the rational design of improved analogues. Two compounds, namely N-phenyl-5-(2-(p-tolylamino)thiazol-4-yl)isoxazole-3-carboxamide 7a and N-(pyridin-2-yl)-5-(2-(p-tolylamino)thiazol-4-yl)isoxazole-3-carboxamide 8a, were found to show high inhibitory activity toward susceptible M. tuberculosis strains, with an MIC90 of 0.125-0.25 μg/mL (0.33-0.66 μM) and 0.06-0.125 μg/mL (0.16-0.32 μM), respectively. Moreover, they maintained good activity also toward resistant strains, and they were selective over other bacterial species and eukaryotic cells, metabolically stable, and apparently not susceptible to the action of efflux pumps.
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Affiliation(s)
- Elisa Azzali
- Centro Interdipartimentale Misure (CIM) 'G. Casnati', University of Parma , Parco Area delle Scienze 23/A, 43124 Parma, Italy
| | - Diana Machado
- Global Health and Tropical Medicine, GHTM, Instituto de Higiene e Medicina Tropical, IHMT, Universidade Nova de Lisboa, UNL , Rua da Junqueira, 100, 1349-008 Lisbon, Portugal
| | - Amit Kaushik
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University , 1503 East Jefferson Street, Baltimore, Maryland 21231-1002, United States.,Taskforce to Study Resistance Emergence & Antimicrobial development Technology, Department of Medicine, Johns Hopkins University , Baltimore, Maryland 21287, United States
| | | | - Sara Flisi
- Department of Veterinary Science, University of Parma , via del Taglio 10, 43126 Parma, Italy
| | - Clotilde Silvia Cabassi
- Department of Veterinary Science, University of Parma , via del Taglio 10, 43126 Parma, Italy
| | - Gyanu Lamichhane
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University , 1503 East Jefferson Street, Baltimore, Maryland 21231-1002, United States.,Taskforce to Study Resistance Emergence & Antimicrobial development Technology, Department of Medicine, Johns Hopkins University , Baltimore, Maryland 21287, United States
| | - Miguel Viveiros
- Global Health and Tropical Medicine, GHTM, Instituto de Higiene e Medicina Tropical, IHMT, Universidade Nova de Lisboa, UNL , Rua da Junqueira, 100, 1349-008 Lisbon, Portugal
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46
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Tessmann JW, Buss J, Begnini KR, Berneira LM, Paula FR, de Pereira CMP, Collares T, Seixas FK. Antitumor potential of 1-thiocarbamoyl-3,5-diaryl-4,5-dihydro-1H-pyrazoles in human bladder cancer cells. Biomed Pharmacother 2017; 94:37-46. [PMID: 28750358 DOI: 10.1016/j.biopha.2017.07.060] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 07/01/2017] [Accepted: 07/09/2017] [Indexed: 11/19/2022] Open
Abstract
Bladder cancer is a genitourinary malignant disease common worldwide. Current chemotherapy is often limited mainly due to toxicity and drug resistance. Thus, there is a continued need to discover new therapies. Recently evidences shows that pyrazoline derivatives are promising antitumor agents in many types of cancers, but there are no studies with bladder cancer. In order to find potent and novel chemotherapy drugs for bladder cancer, a series of pyrazoline derivatives 2a-2d were tested for their antitumor activity in two human bladder cancer cell lines 5647 and T24. The MTT assay showed that the compounds 1-thiocarbamoyl-3,5-diphenyl-4,5-dihydro-1H-pyrazole (2a) and 1-thiocarbamoyl-5-(4-chlorophenyl)-3-phenyl-4,5-dihydro-1H-pyrazole (2c) decrease the cell viability of 5637 cells. Molecular modeling indicated that these compounds had a good oral bioavailability and low toxicities. Clonogenic assay and flow cytometric analysis were used to assess colony formation, apoptosis induction and cell cycle distribution. Overall, our results suggest that pyrazoline 2a and 2c, with the substituents hydrogen and chlorine respectively, may decrease cell viability and colony formation of bladder cancer 5637 cell line by inhibition of cell cycle progression, and for pyrazoline 2a, by induction of apoptosis. As indicated by the physicochemical properties of these compounds, the steric factor influences the activity. Therefore, these pyrazoline derivatives can be considered promising anticancer agents for the treatment of bladder cancer.
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Affiliation(s)
- Josiane Weber Tessmann
- Programa de Pós-Graduação em Biotecnologia (PPGB), Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil; Grupo de Pesquisa em Oncologia Celular e Molecular (GPO), Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil.
| | - Julieti Buss
- Grupo de Pesquisa em Oncologia Celular e Molecular (GPO), Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil.
| | - Karine Rech Begnini
- Programa de Pós-Graduação em Biotecnologia (PPGB), Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil; Grupo de Pesquisa em Oncologia Celular e Molecular (GPO), Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil.
| | - Lucas Moraes Berneira
- Laboratório de Lipidômica e Bio-orgânica, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil.
| | - Favero Reisdorfer Paula
- Laboratório de Desenvolvimento e Controle de Qualidade em Medicamentos, Universidade Federal do Pampa, BR 472 - Km 592, Uruguaiana, RS, Cep: 97508-000, Brazil.
| | - Claudio Martin Pereira de Pereira
- Laboratório de Lipidômica e Bio-orgânica, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil; Programa de Pós-Graduação em Bioquímica e Bioprospecção, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil.
| | - Tiago Collares
- Programa de Pós-Graduação em Biotecnologia (PPGB), Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil; Grupo de Pesquisa em Oncologia Celular e Molecular (GPO), Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil; Programa de Pós-Graduação em Bioquímica e Bioprospecção, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil.
| | - Fabiana Kömmling Seixas
- Programa de Pós-Graduação em Biotecnologia (PPGB), Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil; Grupo de Pesquisa em Oncologia Celular e Molecular (GPO), Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, Cep: 96010-900, Brazil.
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Kusakiewicz-Dawid A, Porada M, Ochędzan-Siodłak W, Broda MA, Bujak M, Siodłak D. Pyrazole amino acids: hydrogen bonding directed conformations of 3-amino-1H-pyrazole-5-carboxylic acid residue. J Pept Sci 2017; 23:716-726. [PMID: 28608410 DOI: 10.1002/psc.3018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 05/24/2017] [Accepted: 05/25/2017] [Indexed: 11/06/2022]
Abstract
A series of model compounds containing 3-amino-1H-pyrazole-5-carboxylic acid residue with N-terminal amide/urethane and C-terminal amide/hydrazide/ester groups were investigated by using NMR, Fourier transform infrared, and single-crystal X-ray diffraction methods, additionally supported by theoretical calculations. The studies demonstrate that the most preferred is the extended conformation with torsion angles ϕ and ψ close to ±180°. The studied 1H-pyrazole with N-terminal amide/urethane and C-terminal amide/hydrazide groups solely adopts this energetically favored conformation confirming rigidity of that structural motif. However, when the C-terminal ester group is present, the second conformation with torsion angles ϕ and ψ close to ±180° and 0°, respectively, is accessible. The conformational equilibrium is observed in NMR and Fourier transform infrared studies in solution in polar environment as well as in the crystal structures of other related compounds. The observed conformational preferences are clearly related to the presence of intramolecular interactions formed within the studied residue. Copyright © 2017 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
| | - Monika Porada
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
| | | | - Małgorzata A Broda
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
| | - Maciej Bujak
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
| | - Dawid Siodłak
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
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Angelova VT, Valcheva V, Pencheva T, Voynikov Y, Vassilev N, Mihaylova R, Momekov G, Shivachev B. Synthesis, antimycobacterial activity and docking study of 2-aroyl-[1]benzopyrano[4,3-c]pyrazol-4(1H)-one derivatives and related hydrazide-hydrazones. Bioorg Med Chem Lett 2017; 27:2996-3002. [PMID: 28512022 DOI: 10.1016/j.bmcl.2017.05.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/03/2017] [Accepted: 05/04/2017] [Indexed: 12/30/2022]
Abstract
A new convenient method for preparation of 2-aroyl-[1]benzopyrano[4,3-c]pyrazol-4(1H)-one derivatives 5b-g and coumarin containing hydrazide-hydrazone analogues 4a-e was presented. The antimycobacterial activity against reference strain Mycobacterium tuberculosis H37Rv and cytotoxicity against the human embryonic kidney cell line HEK-293 were tested in vitro. All compounds demonstrated significant minimum inhibitory concentrations (MIC) ranging 0.28-1.69μM, which were comparable to those of isoniazid. The cytotoxicity (IC50>200µM) to the "normal cell" model HEK-293T exhibited by 2-aroyl-[1]benzopyrano[4,3-c]pyrazol-4(1H)-one derivatives 5b-e, was noticeably milder compared to that of their hydrazone analogues 4a-e (IC50 33-403µM). Molecular docking studies on compounds 4a-e and 5b-g were also carried out to investigate their binding to the 2-trans-enoyl-ACP reductase (InhA) enzyme involved in M. tuberculosis cell wall biogenesis. The binding model suggested one or more hydrogen bonding and/or arene-H or arene-arene interactions between hydrazones or pyrazole-fused coumarin derivatives and InhA enzyme for all synthesized compounds.
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Affiliation(s)
- Violina T Angelova
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria.
| | - Violeta Valcheva
- "Stefan Angelov" Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
| | - Tania Pencheva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 105 Acad. G. Bonchev Str, 1113 Sofia, Bulgaria
| | - Yulian Voynikov
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Nikolay Vassilev
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Rositsa Mihaylova
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Georgi Momekov
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Boris Shivachev
- Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, 107 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
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Rimaz M, Mousavi H, Nikpey L, Khalili B. Novel and convenient one-pot strategy for regioselective synthesis of new 5-aryl-3-methyl-1-phenyl-1,2-dihydro-7aH-pyrazolo[3,4-c]pyridazin-7a-ol derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-016-2848-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Belal A, Abdelgawad MA. New benzothiazole/benzoxazole-pyrazole hybrids with potential as COX inhibitors: design, synthesis and anticancer activity evaluation. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-016-2851-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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