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Michalski J, Stoczewski Z, Roszak S, Kucharska E, Bryndal I, Dymińska L, Lisiecki R, Hanuza J. Conformation of the hydrazo bond in new 2-methyl-3,5-dinitro-6-(2-phenylhydrazinyl)pyridine and its influence on the structural and optic properties - Quantum chemical DFT calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123760. [PMID: 38141502 DOI: 10.1016/j.saa.2023.123760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 11/20/2023] [Accepted: 12/09/2023] [Indexed: 12/25/2023]
Abstract
A new methyl-dinitro-phenylhydrazinyl-pyridine derivative [2-methyl-3,5-dinitro-6-(2-phenylhydrazinyl)pyridine] was synthesised and characterised by means of structural and spectroscopic measurements. The X-ray diffraction studies revealed that the compound crystallises in the centrosymmetric monoclinic space group P21/n, with two symmetry-independent molecules in the asymmetric unit with Z = 8. Hydrazo bridge C-NH-NH-C links two fragments composed of phenyl ring and pyridine unit substituted with methyl and nitro groups. Such a structure was confirmed by 1H and 13C NMR studies as well as IR, Raman, UV-Vis, and emission spectra. The results were analysed using the quantum-chemical DFT calculations. The paper reports the vibrational characteristics and discusses dynamical properties of this moiety. The full set of the normal modes typical of the hydrazo bridge was identified and assigned to respective IR and Raman bands. The results of structural and spectroscopic studies were used to find the dependence between the conformation of the θ-NH-NH-ϕ system and its optic properties. The experimental UV-Vis and emission spectra were discussed in terms of the calculated singlet and triplet states that allowed assigning the unique spectral pattern originating from the electrons of the hydrazo-bridge system.
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Affiliation(s)
- Jacek Michalski
- Department of Bioorganic Chemistry, Faculty of Production Engineering, Wroclaw University of Economics and Business, 118-120 Komandorska Str., Wrocław 53-345, Poland.
| | - Zygmunt Stoczewski
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Szczepan Roszak
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Edyta Kucharska
- Department of Bioorganic Chemistry, Faculty of Production Engineering, Wroclaw University of Economics and Business, 118-120 Komandorska Str., Wrocław 53-345, Poland
| | - Iwona Bryndal
- Department of Organic Chemistry and Pharmaceutical Technology, Faculty of Pharmacy, Wroclaw Medical University, 211A Borowska Str., 50-556 Wrocław, Poland
| | - Lucyna Dymińska
- Department of Bioorganic Chemistry, Faculty of Production Engineering, Wroclaw University of Economics and Business, 118-120 Komandorska Str., Wrocław 53-345, Poland
| | - Radosław Lisiecki
- Institute of Low Temperature and Structure Research, 2 Okólna Str., Wrocław 50-422, Poland
| | - Jerzy Hanuza
- Institute of Low Temperature and Structure Research, 2 Okólna Str., Wrocław 50-422, Poland
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Braun J, Seufert D, Anson CE, Tang J, Powell AK. An Effectively Uncoupled Gd 8 Cluster Formed through Fixation of Atmospheric CO 2 Showing Excellent Magnetocaloric Properties. Int J Mol Sci 2023; 25:264. [PMID: 38203439 PMCID: PMC10779177 DOI: 10.3390/ijms25010264] [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: 10/31/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
The [Gd8(opch)8(CO3)4(H2O)8]·4H2O·10MeCN coordination cluster (1) crystallises in P1¯. The Gd8 core is held together by four bridging carbonates derived from atmospheric CO2 as well as the carboxyhydrazonyl oxygens of the 2-hydroxy-3-methoxybenzylidenepyrazine-2-carbohydrazide (H2opch) Schiff base ligands. The magnetic measurements show that the GdIII ions are effectively uncoupled as seen from the low Weiss constant of 0.05 K needed to fit the inverse susceptibility to the Curie-Weiss law. Furthermore, the magnetisation data are consistent with the Brillouin function for eight independent GdIII ions. These features lead to a magnetocaloric effect with a high efficiency which is 89% of the theoretical maximum value.
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Affiliation(s)
- Jonas Braun
- Institute of Inorganic Chemistry (AOC), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, 76131 Karlsruhe, Germany; (J.B.); (D.S.); (C.E.A.)
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, 76131 Karlsruhe, Germany
- Institute for Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, 76131 Karlsruhe, Germany
| | - Daniel Seufert
- Institute of Inorganic Chemistry (AOC), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, 76131 Karlsruhe, Germany; (J.B.); (D.S.); (C.E.A.)
| | - Christopher E. Anson
- Institute of Inorganic Chemistry (AOC), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, 76131 Karlsruhe, Germany; (J.B.); (D.S.); (C.E.A.)
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China;
| | - Annie K. Powell
- Institute of Inorganic Chemistry (AOC), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, 76131 Karlsruhe, Germany; (J.B.); (D.S.); (C.E.A.)
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, 76131 Karlsruhe, Germany
- Institute for Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, 76131 Karlsruhe, Germany
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Khetmalis YM, Sangeetha GP, Chandu A, Swati, Murugesan S, Sharma V, Kumar MM, Kondapalli VG. Design, synthesis and biological evaluation of novel oxindole analogs as antitubercular agents. Future Med Chem 2023; 15:1323-1342. [PMID: 37610851 DOI: 10.4155/fmc-2023-0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023] Open
Abstract
Aim: To design, synthesize and evaluate oxindole derivatives for antitubercular activity. Methodology: We synthesized the derivatives, confirmed their structures by 1H/13C NMR and mass spectrometry, and evaluated them for antitubercular activity against Mycobacterium tuberculosis H37Rv strain using the microplate alamarBlue™ assay. Results: Among all the synthesized derivatives, OXN-1, -3 and -7 exhibited excellent antitubercular activity (minimum inhibitory concentration [MIC]: 0.78 μg/ml). Compounds with a MIC ≤1.56 were tested for cytotoxicity against human embryonic kidney cells and were found to be relatively nontoxic. Molecular docking analysis of OXN-1, -3 and -7 was performed to determine their binding patterns at the active site of DNA topoisomerase II (PDB-5BS8). In drug combination studies, OXN-1, 3 and 7 showed synergism with isoniazid. Conclusion: The obtained results reveal that oxindole derivatives exhibit potent antitubercular activity.
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Affiliation(s)
- Yogesh M Khetmalis
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Hyderabad, Telangana, 500078, India
| | - Guruvelli Pv Sangeetha
- College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India
| | - Ala Chandu
- Department of Pharmacy, Medicinal Chemistry Research Laboratory, Birla Institute of Technology & Science Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Swati
- Department of Biological Sciences, Birla Institute of Technology & Science, Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad, Telangana, 500078, India
| | - Sankaranarayanan Murugesan
- Department of Pharmacy, Medicinal Chemistry Research Laboratory, Birla Institute of Technology & Science Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Vivek Sharma
- Department of Biological Sciences, Birla Institute of Technology & Science, Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad, Telangana, 500078, India
| | - Muthyala Mk Kumar
- College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India
| | - Venkata Gcs Kondapalli
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Hyderabad, Telangana, 500078, India
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Synthesis, characterization, anti-tuberculosis activity and molecular modeling studies of thiourea derivatives bearing aminoguanidine moiety. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133899] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Belyaeva ER, Myasoedova YV, Ishmuratova NM, Ishmuratov GY. Synthesis and Biological Activity of N-Acylhydrazones. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1068162022060085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Lavania S, Choudhury B. Improvement of amidase production with high specific acyltransferase activity using Bacillus smithii IITR6B2. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Koçak Aslan E, Han Mİ, Krishna VS, Tamhaev R, Dengiz C, Doğan ŞD, Lherbet C, Mourey L, Tønjum T, Gündüz MG. Isoniazid Linked to Sulfonate Esters via Hydrazone Functionality: Design, Synthesis, and Evaluation of Antitubercular Activity. Pharmaceuticals (Basel) 2022; 15:ph15101301. [PMID: 36297413 PMCID: PMC9609273 DOI: 10.3390/ph15101301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/16/2022] [Accepted: 10/19/2022] [Indexed: 01/24/2023] Open
Abstract
Isoniazid (INH) is one of the key molecules employed in the treatment of tuberculosis (TB), the most deadly infectious disease worldwide. However, the efficacy of this cornerstone drug has seriously decreased due to emerging INH-resistant strains of Mycobacterium tuberculosis (Mtb). In the present study, we aimed to chemically tailor INH to overcome this resistance. We obtained thirteen novel compounds by linking INH to in-house synthesized sulfonate esters via a hydrazone bridge (SIH1-SIH13). Following structural characterization by FTIR, 1H NMR, 13C NMR, and HRMS, all compounds were screened for their antitubercular activity against Mtb H37Rv strain and INH-resistant clinical isolates carrying katG and inhA mutations. Additionally, the cytotoxic effects of SIH1-SIH13 were assessed on three different healthy host cell lines; HEK293, IMR-90, and BEAS-2B. Based on the obtained data, the synthesized compounds appeared as attractive antimycobacterial drug candidates with low cytotoxicity. Moreover, the stability of the hydrazone moiety in the chemical structure of the final compounds was confirmed by using UV/Vis spectroscopy in both aqueous medium and DMSO. Subsequently, the compounds were tested for their inhibitory activities against enoyl acyl carrier protein reductase (InhA), the primary target enzyme of INH. Although most of the synthesized compounds are hosted by the InhA binding pocket, SIH1-SIH13 do not primarily show their antitubercular activities by direct InhA inhibition. Finally, in silico determination of important physicochemical parameters of the molecules showed that SIH1-SIH13 adhered to Lipinski's rule of five. Overall, our study revealed a new strategy for modifying INH to cope with the emerging drug-resistant strains of Mtb.
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Affiliation(s)
- Ebru Koçak Aslan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Sıhhiye, Ankara 06100, Turkey
| | - Muhammed İhsan Han
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri 38039, Turkey
| | - Vagolu Siva Krishna
- Unit for Genome Dynamics, Department of Microbiology, University of Oslo, 0316 Oslo, Norway
| | - Rasoul Tamhaev
- LSPCMIB, UMR-CNRS 5068, Université Paul Sabatier-Toulouse III, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
- Institut de Pharmacologie et de Biologie Structurale, Université Toulouse III—Paul Sabatier, Centre National de la Recherche Scientifique, 31077 Toulouse, France
| | - Cagatay Dengiz
- Department of Chemistry, Middle East Technical University, Ankara 06800, Turkey
| | - Şengül Dilem Doğan
- Department of Basic Sciences, Faculty of Pharmacy, Erciyes University, Kayseri 38039, Turkey
| | - Christian Lherbet
- LSPCMIB, UMR-CNRS 5068, Université Paul Sabatier-Toulouse III, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Lionel Mourey
- Institut de Pharmacologie et de Biologie Structurale, Université Toulouse III—Paul Sabatier, Centre National de la Recherche Scientifique, 31077 Toulouse, France
| | - Tone Tønjum
- Unit for Genome Dynamics, Department of Microbiology, University of Oslo, 0316 Oslo, Norway
- Unit for Genome Dynamics, Department of Microbiology, Oslo University Hospital, 0424 Oslo, Norway
| | - Miyase Gözde Gündüz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Sıhhiye, Ankara 06100, Turkey
- Correspondence:
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Tambat N, Mulani SK, Ahmad A, Shaikh SB, Ahmed K. Pyrazine Derivatives—Versatile Scaffold. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1068162022050259] [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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9
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Alghamdi S, Asif M. Pyrazinamide Analogs Designed for Rational Drug Designing Strategies against Resistant Tuberculosis. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1068162022030037] [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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10
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Koçak Aslan E, Krishna VS, Armaković SJ, Armaković S, Şahin O, Tønjum T, Gündüz MG. Linking azoles to isoniazid via hydrazone bridge: Synthesis, crystal structure determination, antitubercular evaluation and computational studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Angelova VT, Pencheva T, Vassilev N, K-Yovkova E, Mihaylova R, Petrov B, Valcheva V. Development of New Antimycobacterial Sulfonyl Hydrazones and 4-Methyl-1,2,3-thiadiazole-Based Hydrazone Derivatives. Antibiotics (Basel) 2022; 11:antibiotics11050562. [PMID: 35625207 PMCID: PMC9137698 DOI: 10.3390/antibiotics11050562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/19/2022] [Accepted: 04/19/2022] [Indexed: 12/03/2022] Open
Abstract
Fifteen 4-methyl-1,2,3-thiadiazole-based hydrazone derivatives 3a–d and sulfonyl hydrazones 5a–k were synthesized. They were characterized by 1H-NMR, 13C NMR, and HRMS. Mycobacterium tuberculosis strain H37Rv was used to assess their antimycobacterial activity. All compounds demonstrated significant minimum inhibitory concentrations (MIC) from 0.07 to 0.32 µM, comparable to those of isoniazid. The cytotoxicity was evaluated using the standard MTT-dye reduction test against human embryonic kidney cells HEK-293T and mouse fibroblast cell line CCL-1. 4-Hydroxy-3-methoxyphenyl substituted 1,2,3-thiadiazole-based hydrazone derivative 3d demonstrated the highest antimycobacterial activity (MIC = 0.0730 µM) and minimal associated cytotoxicity against two normal cell lines (selectivity index SI = 3516, HEK-293, and SI = 2979, CCL-1). The next in order were sulfonyl hydrazones 5g and 5k with MIC 0.0763 and 0.0716 µM, respectively, which demonstrated comparable minimal cytotoxicity. All compounds were subjected to ADME/Tox computational predictions, which showed that all compounds corresponded to Lipinski’s Ro5, and none were at risk of toxicity. The suitable scores of molecular docking performed on two crystallographic structures of enoyl-ACP reductase (InhA) provide promising insight into possible interaction with the InhA receptor. The 4-methyl-1,2,3-thiadiazole-based hydrazone derivatives and sulfonyl hydrazones proved to be new classes of lead compounds having the potential of novel candidate antituberculosis drugs.
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Affiliation(s)
- Violina T. Angelova
- Department of Chemistry, Faculty of Pharmacy, Medical University, 1431 Sofia, Bulgaria;
- Correspondence: or (V.T.A.); (V.V.)
| | - Tania Pencheva
- Department of QSAR and Molecular Modeling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Nikolay Vassilev
- Laboratory “Nuclear Magnetic Resonance”, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Elena K-Yovkova
- Faculty of Computer Systems and Technologies, Technical University, 1756 Sofia, Bulgaria;
| | - Rositsa Mihaylova
- Laboratory “Drug Metabolism and Drug Toxicity”, Department “Pharmacology, Pharmacotherapy and Toxicology”, Faculty of Pharmacy, Medical University, 1431 Sofia, Bulgaria;
| | - Boris Petrov
- Department of Chemistry, Faculty of Pharmacy, Medical University, 1431 Sofia, Bulgaria;
| | - Violeta Valcheva
- Laboratory of Molecular Biology of Mycobacteria, Department of Infectious Microbiology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
- Correspondence: or (V.T.A.); (V.V.)
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New silver(I) phosphino complexes: Evaluation of their potential as prospective agents against Mycobacterium tuberculosis. J Inorg Biochem 2021; 227:111683. [PMID: 34896768 DOI: 10.1016/j.jinorgbio.2021.111683] [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] [Received: 08/17/2021] [Revised: 11/19/2021] [Accepted: 11/28/2021] [Indexed: 12/23/2022]
Abstract
Despite being a preventable and curable disease, Tuberculosis (TB) is the world's top infectious killer. Development of new drugs is urgently needed. In this work, the synthesis and characterization of new silver(I) complexes, that include N'-[(E)-(pyridine-2-ylmethylene)pyrazine-2-carbohydrazide, HPCPH, as main ligand and substituted aryl-phosphines as auxiliary ligands, is reported. HPCPH was synthesized from pyrazinoic acid, the active metabolite of the first-line antimycobacterial drug pyrazinamide. Complexes [Ag(HPCPH)(PPh3)2]OTf (1), [Ag(HPCPH)((P(p-tolyl)3)2]OTf (2) and [Ag(HPCPH)(P(p-anisyl)3)2]OTf (3) were characterized in solid state and in solution by elemental analysis and FTIR and NMR spectroscopies (OTftriflate). Crystal structures of (1,2) were determined by XRD. The Ag atom is coordinated to azomethine and pyridine nitrogen atoms of HPCPH ligand and to the phosphorous atom of each aryl-phosphine co-ligand. Although HPCPH did not show activity, the Ag(I) compounds demonstrated activity against Mycobacterium tuberculosis (MTB), H37Rv strain, and multi-drug resistant clinical isolates (MDR-TB). Globally, results showed that the compounds are not only effective against the sensitive strain, but are more potent against MDR-TB than antimycobacterial drugs used in therapy. The compounds showed low to moderate selectivity index values (SI) towards the bacteria, using MRC-5 cells (ATCC CCL-171) as mammalian cell model. Interaction with DNA was explored to get insight into the potential mechanism of action against the pathogen. No significant interaction was detected, allowing to discard this biomolecule as a potential molecular target. Compound 1 was identified as a hit compound (MIC90 2.23 μM; SI 4.4) to develop further chemical modifications in the search for new drugs.
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Ahmad G, Rasool N, Mubarik A, Zahoor AF, Hashmi MA, Zubair M, Bilal M, Hussien M, Akhtar MS, Haider S. Facile Synthesis of 5-Aryl- N-(pyrazin-2-yl)thiophene-2-carboxamides via Suzuki Cross-Coupling Reactions, Their Electronic and Nonlinear Optical Properties through DFT Calculations. Molecules 2021; 26:molecules26237309. [PMID: 34885891 PMCID: PMC8659105 DOI: 10.3390/molecules26237309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/05/2021] [Accepted: 11/07/2021] [Indexed: 11/17/2022] Open
Abstract
Synthesis of 5-aryl-N-(pyrazin-2-yl)thiophene-2-carboxamides (4a–4n) by a Suzuki cross-coupling reaction of 5-bromo-N-(pyrazin-2-yl)thiophene-2-carboxamide (3) with various aryl/heteroaryl boronic acids/pinacol esters was observed in this article. The intermediate compound 3 was prepared by condensation of pyrazin-2-amine (1) with 5-bromothiophene-2-carboxylic acid (2) mediated by TiCl4. The target pyrazine analogs (4a–4n) were confirmed by NMR and mass spectrometry. In DFT calculation of target molecules, several reactivity parameters like FMOs (EHOMO, ELUMO), HOMO–LUMO energy gap, electron affinity (A), ionization energy (I), electrophilicity index (ω), chemical softness (σ) and chemical hardness (η) were considered and discussed. Effect of various substituents was observed on values of the HOMO–LUMO energy gap and hyperpolarizability. The p-electronic delocalization extended over pyrazine, benzene and thiophene was examined in studying the NLO behavior. The chemical shifts of 1H NMR of all the synthesized compounds 4a–4n were calculated and compared with the experimental values.
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Affiliation(s)
- Gulraiz Ahmad
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (G.A.); (A.M.); (A.F.Z.); (M.Z.); (M.B.)
| | - Nasir Rasool
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (G.A.); (A.M.); (A.F.Z.); (M.Z.); (M.B.)
- Correspondence: (N.R.); (S.H.); Tel.: +92-332-7491790 (N.R.); Fax: +92-41-9201032 (N.R.)
| | - Adeel Mubarik
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (G.A.); (A.M.); (A.F.Z.); (M.Z.); (M.B.)
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (G.A.); (A.M.); (A.F.Z.); (M.Z.); (M.B.)
| | - Muhammad Ali Hashmi
- Department of Chemistry, University of Education Lahore, Attock Campus, Attock 43600, Pakistan;
| | - Muhammad Zubair
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (G.A.); (A.M.); (A.F.Z.); (M.Z.); (M.B.)
| | - Muhammad Bilal
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (G.A.); (A.M.); (A.F.Z.); (M.Z.); (M.B.)
| | - Mohamed Hussien
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
| | | | - Sajjad Haider
- Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
- Correspondence: (N.R.); (S.H.); Tel.: +92-332-7491790 (N.R.); Fax: +92-41-9201032 (N.R.)
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A study of antituberculosis activities and crystal structures of (E)-2-[2-(arylidene)hydrazinyl]pyrimidine and (E)-N
1-(arylidene)pyrimidine-2-carbohydrazide derivatives. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2020. [DOI: 10.1515/znb-2020-0108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Abstract
A study of the anti-tuberculosis activity against Mycobacterium tuberculosis ATTC 27294 and an X-ray structural determination of (E)-2-[2-(arylidene)hydrazinyl]pyrimidine, 1, and (E)-N
1-(arylidene)pyrimidine-2-carbohydazide, 2, derivatives are presented. The effect of the substituents in the aryl moiety on the antituberculosis (anti-TB) activities of 1 and 2 is compared with that of other heteroaryl hydrazonyl and acylhydrazonyl derivatives. The biological activities of 1 do not depend on the coordinating ability of the substituted aryl group: in 2, the most effective aryl group is 5-nitrofuranyl. The structure determinations of (E)-2-((2-(pyrimidin-2-yl)hydrazono)methyl)-phenol, (E)-N′-(2,5-dihydroxybenzylidene)pyrimidine-2-carbohydrazide and of the hydrate of (E)-N′-(2-hydroxy-4-methylbenzylidene)pyrimidine-2-carbohydrazide, and a literature search of related structures in the CCDC data base, allowed an examination of the more important interactions, including the occurrence of X–Y⋯π interactions.
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Moghaddas SA, Hossaini Z, Zareyee D. Green synthesis and investigation of antioxidant ability new pyrazines containing pyrrolo[2,1‐a]isoquinolines derivatives. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4091] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Seyyed Ali Moghaddas
- Department of Chemistry, Qaemshahr Branch Islamic Azad University Qaemshahr Iran
| | | | - Daryoush Zareyee
- Department of Chemistry, Qaemshahr Branch Islamic Azad University Qaemshahr Iran
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Novel pyrazine based anti-tubercular agents: Design, synthesis, biological evaluation and in silico studies. Bioorg Chem 2020; 96:103610. [DOI: 10.1016/j.bioorg.2020.103610] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 12/02/2019] [Accepted: 01/20/2020] [Indexed: 12/31/2022]
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Doğan H, Doğan ŞD, Gündüz MG, Krishna VS, Lherbet C, Sriram D, Şahin O, Sarıpınar E. Discovery of hydrazone containing thiadiazoles as Mycobacterium tuberculosis growth and enoyl acyl carrier protein reductase (InhA) inhibitors. Eur J Med Chem 2020; 188:112035. [PMID: 31951850 DOI: 10.1016/j.ejmech.2020.112035] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/03/2020] [Accepted: 01/03/2020] [Indexed: 11/28/2022]
Abstract
Tuberculosis, caused by Mycobacterium tuberculosis, is a serious infectious disease and remains a global health problem. There is an increasing need for the discovery of novel therapeutic agents for its treatment due to the emerging multi-drug resistance. Herein, we present the rational design and the synthesis of eighteen new thiadiazolylhidrazones (TDHs) which were synthesized by intramolecular oxidative N-S bond formation reaction of 2-benzylidene-N-(phenylcarbamothioyl)hydrazine-1-carboximidamide derivatives by phenyliodine(III) bis(trifluoroacetate) (PIFA) under mild conditions. The compounds were characterized by various spectral techniques including FTIR, 1H NMR, 13C NMR and HRMS. Furthermore, the proposed structure of TDH12 was resolved by single-crystal X-ray analysis. The compounds were evaluated for their in vitro antitubercular activity against M. tuberculosis H37Rv. Among them, some compounds exhibited remarkable antimycobacterial activity, MIC = 0.78-6.25 μg/mL, with low cytotoxicity. Additionally, the most active compounds were screened for their biological activities against M. tuberculosis in the nutrient starvation model. Enzyme inhibition assays and molecular docking studies revealed enoyl acyl carrier protein reductase (InhA) as the possible target enzyme of the compounds to show their antitubercular activities.
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Affiliation(s)
- Hilal Doğan
- Department of Chemistry, Faculty of Science, Erciyes University, 38039, Kayseri, Turkey; Department of Basic Sciences, Faculty of Pharmacy, Erciyes University, 38039, Kayseri, Turkey
| | - Şengül Dilem Doğan
- Department of Basic Sciences, Faculty of Pharmacy, Erciyes University, 38039, Kayseri, Turkey.
| | - Miyase Gözde Gündüz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Sıhhiye, 06100, Ankara, Turkey
| | - Vagolu Siva Krishna
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, 500078, Hyderabad, India
| | - Christian Lherbet
- LSPCMIB, UMR-CNRS 5068, Université Paul Sabatier-Toulouse III, 118, route de Narbonne, 236 Cours Eugène Cosserat, 31062, Toulouse Cedex, France
| | - Dharmarajan Sriram
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, 500078, Hyderabad, India
| | - Onur Şahin
- Scientific and Technological Research Application and Research Center, Sinop University, 57000 Sinop, Turkey
| | - Emin Sarıpınar
- Department of Chemistry, Faculty of Science, Erciyes University, 38039, Kayseri, Turkey
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18
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Srinivasarao S, Nandikolla A, Suresh A, Calster KV, De Voogt L, Cappoen D, Ghosh B, Aggarwal H, Murugesan S, Chandra Sekhar KVG. Seeking potent anti-tubercular agents: design and synthesis of substituted- N-(6-(4-(pyrazine-2-carbonyl)piperazine/homopiperazine-1-yl)pyridin-3-yl)benzamide derivatives as anti-tubercular agents. RSC Adv 2020; 10:12272-12288. [PMID: 35497605 PMCID: PMC9050811 DOI: 10.1039/d0ra01348j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 05/19/2020] [Accepted: 03/18/2020] [Indexed: 11/21/2022] Open
Abstract
We herein report 27 pyrazinamide analogues as anti-tubercular agents, of which six exhibited excellent activity with IC50 ≤ 2.18 μM and these were less toxic against HEK 293 cells.
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Affiliation(s)
- Singireddi Srinivasarao
- Department of Chemistry
- Birla Institute of Technology and Science, Pilani
- Hyderabad-500078
- India
| | - Adinarayana Nandikolla
- Department of Chemistry
- Birla Institute of Technology and Science, Pilani
- Hyderabad-500078
- India
| | - Amaroju Suresh
- Department of Chemistry
- Birla Institute of Technology and Science, Pilani
- Hyderabad-500078
- India
| | - Kevin Van Calster
- Department of Green Chemistry and Technology
- Faculty of Bioscience Engineering
- Ghent University
- Ghent
- Belgium
| | - Linda De Voogt
- Department of Green Chemistry and Technology
- Faculty of Bioscience Engineering
- Ghent University
- Ghent
- Belgium
| | - Davie Cappoen
- Department of Green Chemistry and Technology
- Faculty of Bioscience Engineering
- Ghent University
- Ghent
- Belgium
| | - Balaram Ghosh
- Department of Pharmacy
- Birla Institute of Technology and Science, Pilani
- Hyderabad-500078
- India
| | - Himanshu Aggarwal
- Department of Chemistry
- Birla Institute of Technology and Science, Pilani
- Hyderabad-500078
- India
| | - Sankaranarayanan Murugesan
- Medicinal Chemistry Research Laboratory
- Department of Pharmacy
- Birla Institute of Technology and Science, Pilani
- India
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19
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Miniyar P, Mahajan A, Anuse D, Kumar A, Barmade M, Sarkar D, Arkile M, Khedkar V. Recursive Partitioning Analysis and Anti-Tubercular Screening of 3- Aminopyrazine-2-Carbohydrazide Derivatives. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180816666190329222636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Treating tuberculosis is a challenge due to the development of drug
resistance. Hence, it is imperative to develop novel leads having high potency and efficacy to curb
drug resistance.
Methods:
The present research work is focused on microwave-assisted synthesis of novel twenty-six
3-amino-N’-benzylidenepyrazine-2-carbohydrazide derivatives (3a-z), where, lyophilization
technique was used for isolation of the major intermediate, 3-aminopyrazin-2-carbohydrazide. All
synthesized compounds were subjected for anti-tubercular screening against Mycobacterium
tuberculosis H37Ra by using XTT Reduction Menadione Assay (XRMA) protocol.
Results:
Out of 26 synthesized compounds, four N’-substitutedbenzaldehyde-3-amino-pyrazine-2-
carbohydrazide derivatives viz. 3i, 3j 3v and 3z showed significant activity against M. tuberculosis
H37Ra. The compounds 3i, 3j, 3v and 3z showed 99, 98, 92 and 87 % inhibition respectively as
compared to 94% inhibition shown by the standard drug rifampicin. The MIC and IC50 values were in
the range of 24.3-110 and 5.9-20.8 µg/ml respectively.
Conclusion:
A classification model called Recursive Partitioning (RP) based on binary Quantitative
Structure-Activity Relationship (QSAR) was derived for the establishment of structure-activity
relationship (SAR). The predictions derived on the basis of RP model were found to be in agreement
with anti-tubercular screening data.
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Affiliation(s)
- Pankaj Miniyar
- Department of Pharmaceutical Chemistry, Sinhgad Institute of Pharmacy, Narhe, Pune- 411041, Affiliated to Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India
| | - Anand Mahajan
- Goa College of Pharmacy, 18th June Road, Panaji, Goa 403 001, India
| | - Dattatray Anuse
- Department of Pharmaceutical Chemistry, Sinhgad Institute of Pharmacy, Narhe, Pune- 411041, Affiliated to Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India
| | - Ashish Kumar
- Department of Pharmaceutical Chemistry, Sinhgad Institute of Pharmacy, Narhe, Pune- 411041, Affiliated to Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India
| | | | - Dhiman Sarkar
- CombiChem Bio Resource Center, National Chemical Laboratory, Pune 411008, India
| | - Manisha Arkile
- CombiChem Bio Resource Center, National Chemical Laboratory, Pune 411008, India
| | - Vijay Khedkar
- CombiChem Bio Resource Center, National Chemical Laboratory, Pune 411008, India
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20
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Synthesis and spectroscopic study of three new oxadiazole derivatives with detailed computational evaluation of their reactivity and pharmaceutical potential. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.07.026] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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A class of hydrazones are active against non-replicating Mycobacterium tuberculosis. PLoS One 2018; 13:e0198059. [PMID: 30332412 PMCID: PMC6192558 DOI: 10.1371/journal.pone.0198059] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 10/01/2018] [Indexed: 12/18/2022] Open
Abstract
There is an urgent need for the development of shorter, simpler and more tolerable drugs to treat antibiotic tolerant populations of Mycobacterium tuberculosis. We previously identified a series of hydrazones active against M. tuberculosis. We selected five representative compounds for further analysis. All compounds were active against non-replicating M. tuberculosis, with two compounds demonstrating greater activity under hypoxic conditions than aerobic culture. Compounds had bactericidal activity with MBC/MIC of < 4 and demonstrated an inoculum-dependent effect against aerobically replicating bacteria. Bacterial kill kinetics demonstrated a faster rate of kill against non-replicating bacilli generated by nutrient starvation. Compounds had limited activity against other bacterial species. In conclusion, we have demonstrated that hydrazones have some attractive properties in terms of their anti-tubercular activity.
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22
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Synthesis, spectroscopic analyses (FT-IR and NMR), vibrational study, chemical reactivity and molecular docking study and anti-tubercular activity of condensed oxadiazole and pyrazine derivatives. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.12.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Feltham HLC, Cowan MG, Kitchen JA, Jameson GNL, Brooker S. Targeted structural modification of spin crossover complexes: pyridine vs pyrazine. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1358449] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry, MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
| | | | | | | | - Sally Brooker
- Department of Chemistry, MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
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24
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Bispo MLF, Lima CHS, Cardoso LNF, Candéa ALP, Bezerra FAFM, Lourenço MCS, Henriques MGMO, Alencastro RB, Kaiser CR, Souza MVN, Albuquerque MG. Anti-Mycobacterial Evaluation of 7-Chloro-4-Aminoquinolines and Hologram Quantitative Structure-Activity Relationship (HQSAR) Modeling of Amino-Imino Tautomers. Pharmaceuticals (Basel) 2017; 10:ph10020052. [PMID: 28598408 PMCID: PMC5490409 DOI: 10.3390/ph10020052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/05/2017] [Accepted: 06/06/2017] [Indexed: 11/16/2022] Open
Abstract
In an ongoing research program for the development of new anti-tuberculosis drugs, we synthesized three series (A, B, and C) of 7-chloro-4-aminoquinolines, which were evaluated in vitro against Mycobacterium tuberculosis (MTB). Now, we report the anti-MTB and cytotoxicity evaluations of a new series, D (D01–D21). Considering the active compounds of series A (A01–A13), B (B01–B13), C (C01–C07), and D (D01–D09), we compose a data set of 42 compounds and carried out hologram quantitative structure–activity relationship (HQSAR) analysis. The amino–imino tautomerism of the 4-aminoquinoline moiety was considered using both amino (I) and imino (II) forms as independent datasets. The best HQSAR model from each dataset was internally validated and both models showed significant statistical indexes. Tautomer I model: leave-one-out (LOO) cross-validated correlation coefficient (q2) = 0.80, squared correlation coefficient (r2) = 0.97, standard error (SE) = 0.12, cross-validated standard error (SEcv) = 0.32. Tautomer II model: q2 = 0.77, r2 = 0.98, SE = 0.10, SEcv = 0.35. Both models were externally validated by predicting the activity values of the corresponding test set, and the tautomer II model, which showed the best external prediction performance, was used to predict the biological activity responses of the compounds that were not evaluated in the anti-MTB trials due to poor solubility, pointing out D21 for further solubility studies to attempt to determine its actual biological activity.
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Affiliation(s)
- Marcelle L F Bispo
- Departamento de Química, Universidade Estadual de Londrina (UEL), Londrina 86057-970, Brazil.
- Programa de Pós-Graduação em Química (PGQu), Instituto de Química (IQ), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21949-900, Brazil.
- Fundação Oswaldo Cruz (FioCruz), Instituto de Tecnologia em Fármacos (Far-Manguinhos), Rio de Janeiro 21041-250, Brazil.
| | - Camilo H S Lima
- Faculdade de Farmácia, Laboratório de Química Medicinal (LQMed), Programa de Pós-Graduação em Ciências Aplicadas a Produtos para Saúde, Universidade Federal Fluminense (UFF), Niterói 24241-000, Brazil.
- Programa de Pós-Graduação em Química (PGQu), Instituto de Química (IQ), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21949-900, Brazil.
- Fundação Oswaldo Cruz (FioCruz), Instituto de Tecnologia em Fármacos (Far-Manguinhos), Rio de Janeiro 21041-250, Brazil.
| | - Laura N F Cardoso
- Programa de Pós-Graduação em Química (PGQu), Instituto de Química (IQ), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21949-900, Brazil.
- Fundação Oswaldo Cruz (FioCruz), Instituto de Tecnologia em Fármacos (Far-Manguinhos), Rio de Janeiro 21041-250, Brazil.
| | - André L P Candéa
- Fundação Oswaldo Cruz (FioCruz), Instituto de Tecnologia em Fármacos (Far-Manguinhos), Rio de Janeiro 21041-250, Brazil.
| | - Flávio A F M Bezerra
- Fundação Oswaldo Cruz (FioCruz), Instituto de Pesquisas Clínicas Evandro Chagas (IPEC), Rio de Janeiro 21040-360, Brazil.
| | - Maria C S Lourenço
- Fundação Oswaldo Cruz (FioCruz), Instituto de Pesquisas Clínicas Evandro Chagas (IPEC), Rio de Janeiro 21040-360, Brazil.
| | - Maria G M O Henriques
- Fundação Oswaldo Cruz (FioCruz), Instituto de Tecnologia em Fármacos (Far-Manguinhos), Rio de Janeiro 21041-250, Brazil.
| | - Ricardo B Alencastro
- Programa de Pós-Graduação em Química (PGQu), Instituto de Química (IQ), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21949-900, Brazil.
| | - Carlos R Kaiser
- Programa de Pós-Graduação em Química (PGQu), Instituto de Química (IQ), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21949-900, Brazil.
| | - Marcus V N Souza
- Programa de Pós-Graduação em Química (PGQu), Instituto de Química (IQ), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21949-900, Brazil.
- Fundação Oswaldo Cruz (FioCruz), Instituto de Tecnologia em Fármacos (Far-Manguinhos), Rio de Janeiro 21041-250, Brazil.
| | - Magaly G Albuquerque
- Programa de Pós-Graduação em Química (PGQu), Instituto de Química (IQ), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21949-900, Brazil.
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25
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Miniyar P, Mokale S, Makhija S. Design and synthesis of 5-methylpyrazine-2-carbohydrazide derivatives: A new anti-tubercular scaffold. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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26
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Bonnett SA, Ollinger J, Chandrasekera S, Florio S, O’Malley T, Files M, Jee JA, Ahn J, Casey A, Ovechkina Y, Roberts D, Korkegian A, Parish T. A Target-Based Whole Cell Screen Approach To Identify Potential Inhibitors of Mycobacterium tuberculosis Signal Peptidase. ACS Infect Dis 2016; 2:893-902. [PMID: 27642770 PMCID: PMC5215716 DOI: 10.1021/acsinfecdis.6b00075] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Indexed: 12/31/2022]
Abstract
The general secretion (Sec) pathway is a conserved essential pathway in bacteria and is the primary route of protein export across the cytoplasmic membrane. During protein export, the signal peptidase LepB catalyzes the cleavage of the signal peptide and subsequent release of mature proteins into the extracellular space. We developed a target-based whole cell assay to screen for potential inhibitors of LepB, the sole signal peptidase in Mycobacterium tuberculosis, using a strain engineered to underexpress LepB (LepB-UE). We screened 72,000 compounds against both the Lep-UE and wild-type (wt) strains. We identified the phenylhydrazone (PHY) series as having higher activity against the LepB-UE strain. We conducted a limited structure-activity relationship determination around a representative PHY compound with differential activity (MICs of 3.0 μM against the LepB-UE strain and 18 μM against the wt); several analogues were less potent against the LepB overexpressing strain. A number of chemical modifications around the hydrazone moiety resulted in improved potency. Inhibition of LepB activity was observed for a number of compounds in a biochemical assay using cell membrane fraction derived from M. tuberculosis. Compounds did not increase cell permeability, dissipate membrane potential, or inhibit an unrelated mycobacterial enzyme, suggesting a specific mode of action related to the LepB secretory mechanism.
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Affiliation(s)
- Shilah A. Bonnett
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - Juliane Ollinger
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - Susantha Chandrasekera
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - Stephanie Florio
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - Theresa O’Malley
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - Megan Files
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - Jo-Ann Jee
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - James Ahn
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - Allen Casey
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - Yulia Ovechkina
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - David Roberts
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - Aaron Korkegian
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
| | - Tanya Parish
- TB Discovery
Research, Infectious Disease Research Institute, 1616 Eastlake Avenue East, Suite
400, Seattle, Washington 98102, United States
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27
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Ajlouni AM, Abu-Salem Q, Taha ZA, Hijazi AK, Al Momani W. Synthesis, characterization, biological activities and luminescent properties of lanthanide complexes with [2-thiophenecarboxylic acid, 2-(2-pyridinylmethylene)hydrazide] Schiff bases ligand. J RARE EARTH 2016. [DOI: 10.1016/s1002-0721(16)60125-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Tetradentate hydrazone metal complexes derived from cefazolin and 2,6-diacetylpyridine hydrazide: synthesis, characterization, and antibacterial activity. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1585-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Anacona JR, Rangel V, Loroño M, Camus J. Tetradentate metal complexes derived from cephalexin and 2,6-diacetylpyridine bis(hydrazone): Synthesis, characterization and antibacterial activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 149:23-29. [PMID: 25942081 DOI: 10.1016/j.saa.2015.04.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 04/13/2015] [Accepted: 04/20/2015] [Indexed: 06/04/2023]
Abstract
Metal(II) coordination compounds of a hydrazone ligand (HL) derived from the condensation of cephalexin antibiotic with 2,6-diacetylpyridine bis(hydrazone) were synthesized. The hydrazone ligand and mononuclear [ML(H2O)2][PF6] (M(II)=Mn, Co, Ni, Zn) complexes were characterized by several techniques, including elemental and thermal analysis, molar conductance and magnetic susceptibility measurements, electronic, FT-IR, EPR and (1)H NMR spectral studies. The cephalexin 2,6-diacetylpyridine bis(hydrazone) ligand HL behaves as a monoanionic tetradentate NNNO chelating agent. The biological applications of complexes have been studied on two bacteria strains (Escherichia coli and Staphylococcus aureus) by agar diffusion disc method.
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Affiliation(s)
- J R Anacona
- Department of Chemistry, Universidad de Oriente, Cumana 6101, Venezuela.
| | - Victor Rangel
- Department of Chemistry, Universidad de Oriente, Cumana 6101, Venezuela
| | - Marcos Loroño
- Department of Chemistry, Universidad de Oriente, Cumana 6101, Venezuela
| | - Juan Camus
- Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso, Chile
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30
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Anacona JR, Rincones M. Tridentate hydrazone metal complexes derived from cephalexin and 2-hydrazinopyridine: synthesis, characterization and antibacterial activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 141:169-175. [PMID: 25677531 DOI: 10.1016/j.saa.2015.01.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 11/17/2014] [Accepted: 01/05/2015] [Indexed: 06/04/2023]
Abstract
Metal(II) coordination compounds of a tridentate hydrazone ligand (HL) derived from the condensation of cephalexin antibiotic with 2-hydrazinopyridine were synthesized. The hydrazone ligand and mononuclear [ML(OAc)(H2O)] (M(II)=Mn, Co, Ni, Cu, Zn, Ag) complexes were characterized by several techniques, including elemental and thermal analysis, molar conductance and magnetic susceptibility measurements, electronic, FT-IR, EPR and (1)H NMR spectral studies. The cephalexin 2-pyridinylhydrazone ligand HL behaves as a monoanionic tridentate NNO chelating agent. The biological applications of complexes have been studied on three bacteria strains (Escherichia coli, Acinetobacter baumannii and Enterococcus faecalis) by agar diffusion disc method.
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Affiliation(s)
- J R Anacona
- Department of Chemistry, Universidad de Oriente, Cumana 6101 Venezuela.
| | - Maria Rincones
- Department of Chemistry, Universidad de Oriente, Cumana 6101 Venezuela
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31
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Sedighi V, Azerang P, Sardari S. Antimycobacterial evaluation of novel [4,5-dihydro-1H-pyrazole-1-carbonyl]pyridine derivatives synthesized by microwave-mediated Michael addition. Drug Test Anal 2014; 7:550-4. [PMID: 25219796 DOI: 10.1002/dta.1712] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 08/02/2014] [Accepted: 08/03/2014] [Indexed: 11/10/2022]
Abstract
The focus of this study is the synthesis and biological activity evaluation of a series of dibenzalaceton derivatives (3a-3n) and novel [4,5-dihydro-1H-pyrazole-1-carbonyl]pyridine derivatives (5a-5g) against Mycobacterium bovis, Bacillus Calmette-Guerin (BCG). Dibenzalacetone derivatives were synthesized by benzaldehyde derivatives. The [4,5-dihydro-1H-pyrazole-1-carbonyl]pyridine derivatives were synthesized by Michael addition reaction and using green chemistry microwave-mediated method. All compounds were evaluated against BCG and the activity expressed as minimum inhibitory concentration (MIC) in μM. The result showed good activity for all the compounds especially compounds (3a), (3n), and (5a) illustrated high activity (7.03, 8.10 and 5.37 μM, respectively).
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Affiliation(s)
- Vida Sedighi
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13164, Iran
| | - Parisa Azerang
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13164, Iran
| | - Soroush Sardari
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13164, Iran
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Ramos DF, Fiss G, Frizzo CP, Martins MAP, Bonacorso HG, Zanatta N, Almeida da Silva PE. Activity of 4,5-dihydro-1H-pyrazoles against Mycobacterium tuberculosis and nontuberculous mycobacteria. Int J Antimicrob Agents 2014; 43:481-3. [PMID: 24713182 DOI: 10.1016/j.ijantimicag.2014.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 02/19/2014] [Accepted: 02/21/2014] [Indexed: 10/25/2022]
Affiliation(s)
- Daniela Fernandes Ramos
- Núcleo de Pesquisa em Microbiologia Médica (NUPEMM), Faculdade de Medicina, Universidade Federal do Rio Grande, Rua General Osório, s/n - Área Acadêmica da Saúde, CEP: 96200-190, Rio Grande do Sul, RS, Brazil
| | - Gabriela Fiss
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, CEP: 97105-900, Santa Maria, RS, Brazil
| | - Clarissa Piccinin Frizzo
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, CEP: 97105-900, Santa Maria, RS, Brazil
| | - Marcos Antonio Pinto Martins
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, CEP: 97105-900, Santa Maria, RS, Brazil
| | - Helio Gauze Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, CEP: 97105-900, Santa Maria, RS, Brazil
| | - Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, CEP: 97105-900, Santa Maria, RS, Brazil
| | - Pedro Eduardo Almeida da Silva
- Núcleo de Pesquisa em Microbiologia Médica (NUPEMM), Faculdade de Medicina, Universidade Federal do Rio Grande, Rua General Osório, s/n - Área Acadêmica da Saúde, CEP: 96200-190, Rio Grande do Sul, RS, Brazil.
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Design, synthesis and biological evaluation of (E)-2-(2-arylhydrazinyl)quinoxalines, a promising and potent new class of anticancer agents. Bioorg Med Chem Lett 2014; 24:934-9. [DOI: 10.1016/j.bmcl.2013.12.074] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 12/16/2013] [Accepted: 12/17/2013] [Indexed: 01/25/2023]
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Rodrigues FAR, Oliveira ACA, Cavalcanti BC, Pessoa C, Pinheiro AC, de Souza MVN. Biological evaluation of isoniazid derivatives as an anticancer class. Sci Pharm 2013; 82:21-8. [PMID: 24634839 PMCID: PMC3951230 DOI: 10.3797/scipharm.1307-25] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Accepted: 09/22/2013] [Indexed: 11/25/2022] Open
Abstract
A series of thirty-two isoniazid derivatives have been evaluated for their activity against four human cancer cell lines with potent cytotoxicity (IC50 ranging from 0.61 to 3.36 μg/mL). The structure-activity relationship (SAR) analysis indicated the number, the positions, and the types of substituents attached to the aromatic ring as being critical factors for the biological activity. Briefly, we observed that the presence of a hydroxyl group on the benzene ring plays an important role in the anticancer activity of this series, especially when it is located in ortho-position. Among the thirty-two compounds, three displayed good cytotoxic activity when compared to the reference drug doxorubicin and are thus being considered leading compounds of this new class.
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Affiliation(s)
- Felipe A R Rodrigues
- Laboratório de Oncologia Experimental, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Augusto C A Oliveira
- Laboratório de Oncologia Experimental, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Bruno C Cavalcanti
- Laboratório de Oncologia Experimental, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Claudia Pessoa
- Laboratório de Oncologia Experimental, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Alessandra C Pinheiro
- FioCruz-Fundação Oswaldo Cruz, Instituto de Tecnologia em Fármacos-Far-Manguinhos, Rua Sizenando Nabuco, 100, Manguinhos, 21041-250 Rio de Janeiro, RJ, Brazil
| | - Marcus V N de Souza
- FioCruz-Fundação Oswaldo Cruz, Instituto de Tecnologia em Fármacos-Far-Manguinhos, Rua Sizenando Nabuco, 100, Manguinhos, 21041-250 Rio de Janeiro, RJ, Brazil
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Synthetic, structural and pharmacological studies on some isonicotinohydrazide and benzohydrazide analogues. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.jopr.2013.06.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bispo MDLF, Gonçalves RSB, Lima CHDS, Cardoso LNDF, Lourenço MCS, de Souza MVN. Synthesis and Antitubercular Evaluation ofN-Arylpyrazine andN,N′-Alkyl-diylpyrazine-2-carboxamide Derivatives. J Heterocycl Chem 2012. [DOI: 10.1002/jhet.921] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | - Camilo Henrique da Silva Lima
- FioCruz-Fundação Oswaldo Cruz; Instituto de Tecnologia em Fármacos-Far Manguinhos; Manguinhos; Rio de Janeiro; Brazil
| | | | | | - Marcus Vinícius Nora de Souza
- FioCruz-Fundação Oswaldo Cruz; Instituto de Tecnologia em Fármacos-Far Manguinhos; Manguinhos; Rio de Janeiro; Brazil
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Abstract
INTRODUCTION Pyrazines derivatives are well-known and important two-nitrogen-containing six-membered ring aromatic heterocyclic compounds and can carry substituents at one or more of the four ring carbon atoms. Pyrazines are a class of compounds that occur in nature and various methods have been worked out for their synthesis. A large number of pyrazine derivatives have been found to possess diverse pharmacological properties, which has caused an increasing interest by researchers in this core. AREA COVERED This review provides a comprehensive review of the pyrazines derivatives patented between the years 2008 to 2012 as potential active compounds. The patent databases SciFinder and esp@cenet were used to locate patent applications that were published between 2008 to present. Information from articles published was also included. EXPERT OPINION The diversity of pyrazines derivatives found in organisms in nature with different applications began to arouse the interest of research in this nucleus. The pyrazines derivatives have numerous prominent pharmacological effects, such as antibacterial, antifungal, antimycobacterial, anti-inflammatory, analgesic, anticancer for different types, antidiabetic, treatment for arteriosclerosis, antiviral. It's the time to conduct further studies aimed at rationalizing the biological activities found in order to develop more effective and clinically interesting compounds.
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Affiliation(s)
- Sabrina Baptista Ferreira
- Universidade Federal do Rio de Janeiro, Chemistry Institute, Department of Organic Chemistry, 27930-560, Mácae-RJ, Brazil
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Jamadar A, Duhme-Klair AK, Vemuri K, Sritharan M, Dandawate P, Padhye S. Synthesis, characterisation and antitubercular activities of a series of pyruvate-containing aroylhydrazones and their Cu-complexes. Dalton Trans 2012; 41:9192-201. [DOI: 10.1039/c2dt30322a] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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New series of isoniazid hydrazones linked with electron-withdrawing substituents. Eur J Med Chem 2011; 46:5902-9. [DOI: 10.1016/j.ejmech.2011.09.054] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 09/26/2011] [Accepted: 09/29/2011] [Indexed: 10/16/2022]
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Cardoso SH, Barreto MB, Lourenço MCS, Henriques MDGMDO, Candéa ALP, Kaiser CR, de Souza MVN. Antitubercular Activity of New Coumarins. Chem Biol Drug Des 2011; 77:489-93. [DOI: 10.1111/j.1747-0285.2011.01120.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Synthesis and pharmacological evaluation of pyrazine N-acylhydrazone derivatives designed as novel analgesic and anti-inflammatory drug candidates. Bioorg Med Chem 2010; 18:5007-15. [DOI: 10.1016/j.bmc.2010.06.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 05/29/2010] [Accepted: 06/02/2010] [Indexed: 11/21/2022]
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