1
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Redway A, Spry C, Brown A, Wiedemann U, Fathoni I, Garnie LF, Qiu D, Egan TJ, Lehane AM, Jackson Y, Saliba KJ, Downer-Riley N. Discovery of antiplasmodial pyridine carboxamides and thiocarboxamides. Int J Parasitol Drugs Drug Resist 2024; 25:100536. [PMID: 38663046 PMCID: PMC11068522 DOI: 10.1016/j.ijpddr.2024.100536] [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: 06/01/2023] [Revised: 03/30/2024] [Accepted: 04/01/2024] [Indexed: 05/07/2024]
Abstract
Malaria continues to be a significant burden, particularly in Africa, which accounts for 95% of malaria deaths worldwide. Despite advances in malaria treatments, malaria eradication is hampered by insecticide and antimalarial drug resistance. Consequently, the need to discover new antimalarial lead compounds remains urgent. To help address this need, we evaluated the antiplasmodial activity of twenty-two amides and thioamides with pyridine cores and their non-pyridine analogues. Twelve of these compounds showed in vitro anti-proliferative activity against the intraerythrocytic stage of Plasmodium falciparum, the most virulent species of Plasmodium infecting humans. Thiopicolinamide 13i was found to possess submicromolar activity (IC50 = 142 nM) and was >88-fold less active against a human cell line. The compound was equally effective against chloroquine-sensitive and -resistant parasites and did not inhibit β-hematin formation, pH regulation or PfATP4. Compound 13i may therefore possess a novel mechanism of action.
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Affiliation(s)
- Alexa Redway
- Department of Chemistry, The University of the West Indies, Mona, Kingston 7, Jamaica; Chemistry Divison, University of Technology, 237 Old Hope Road, Kingston 6, Jamaica
| | - Christina Spry
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Ainka Brown
- Department of Chemistry, The University of the West Indies, Mona, Kingston 7, Jamaica
| | - Ursula Wiedemann
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Imam Fathoni
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Larnelle F Garnie
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa
| | - Deyun Qiu
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Timothy J Egan
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa; Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, South Africa
| | - Adele M Lehane
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Yvette Jackson
- Department of Chemistry, The University of the West Indies, Mona, Kingston 7, Jamaica
| | - Kevin J Saliba
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Nadale Downer-Riley
- Department of Chemistry, The University of the West Indies, Mona, Kingston 7, Jamaica.
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2
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Matta R, Pochampally J, Dhoddi BN, Bhookya S, Bitla S, Akkiraju AG. Synthesis, antimicrobial and antioxidant activity of triazole, pyrazole containing thiazole derivatives and molecular docking studies on COVID-19. BMC Chem 2023; 17:61. [PMID: 37330518 DOI: 10.1186/s13065-023-00965-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/26/2023] [Indexed: 06/19/2023] Open
Abstract
New series of biologically active triazole and pyrazole compounds containing 2, 4-disubstituted thiazole analogues (12a-l) were synthesized from p-hydroxy benzaldehyde and phenyl hydrazine in excellent yields and purity. All the synthesized compounds were unambiguously identified based on their spectral data analyses (IR, 1H-NMR, 13C-NMR spectra, and HRMS). The final derivatives were evaluated for their in vitro anti-microbial activity after thorough purification. Among all the tested compounds, the compound 12e, 12f and 12 k possess the highest growth inhibitory activity at MIC values of 4.8, 5.1 and 4.0 μg/ml respectively. The antioxidant properties of these compounds demonstrated and revealed remarkable activity compared to the standard antioxidant by using the DPPH free radical-scavenging assay. Moreover, molecular docking studies to evaluate the probable interactions with the catalytic domain of the gram-positive S. aureus topoisomerase IV enzyme may provide new insights for developing these new hybrids as potential antimicrobial agents. The binding affinities of compounds 12a-l were ranging from - 10.0 to - 11.0 kcal/mol with topoisomerase IV enzyme and with COVID-19 main protease binding affinities are ranging from - 8.2 to - 9.3 kcal/mol. These docking studies reveal that the compounds 12a-l could be the best inhibitors for the novel SARS Cov-2 virus and have more future in discovery of potent drug candidates.
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Affiliation(s)
- Raghavender Matta
- Department of Chemistry, Osmania University, Hyderabad, 500007, India
| | | | | | - Shankar Bhookya
- Department of Chemistry, Sreenidhi University, Hyderabad, 501301, India
| | - Sampath Bitla
- Department of Chemistry, Osmania University, Hyderabad, 500007, India
| | - Anjini Gayatri Akkiraju
- Molecular Medicine Lab, Department of Genetics & Biotechnology, Osmania University, Hyderabad, 500007, India
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3
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Ravindar L, Hasbullah SA, Rakesh KP, Hassan NI. Pyrazole and pyrazoline derivatives as antimalarial agents: A key review. Eur J Pharm Sci 2023; 183:106365. [PMID: 36563914 DOI: 10.1016/j.ejps.2022.106365] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/28/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
Malaria poses a severe public health risk and a significant economic burden in disease-endemic countries. One of the most severe issues in malaria control is the development of drug resistance in malaria parasites. The standard treatment for malaria is artemisinin-combination therapy (ACT). Nevertheless, the Plasmodium parasite's extensive resistance to prior drugs and reduced ACT efficiency necessitates novel drug discovery. The progress in discovering novel, affordable, and effective antimalarial agents is significant in combating drug resistance, and the hybrid drug concept can be used to covalently link two or more active pharmacophores that may act on multiple targets. Pyrazole and pyrazoline derivatives are considered pharmacologically necessary active heterocyclic scaffolds that possess almost all types of pharmacological activities. This review summarized recent progress in antimalarial activities of synthesized pyrazole and pyrazoline derivatives. The studies published since 2000 are included in this systematic review. This review is anticipated to be beneficial for future study and new ideas in searching for rational development strategies for more effective pyrazole and pyrazoline derivatives as antimalarial drugs.
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Affiliation(s)
- Lekkala Ravindar
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600 Selangor, Malaysia
| | - Siti Aishah Hasbullah
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600 Selangor, Malaysia
| | - K P Rakesh
- Department of Radiology, Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Nurul Izzaty Hassan
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600 Selangor, Malaysia.
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4
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Promising anticancer activity with high selectivity of DNA/plasma protein targeting new phthalazin-1(2H)-one heterocyclic scaffolds. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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5
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Gupta A, Vankar JK, Jadav JP, Gururaja GN. Water Mediated Direct Thioamidation of Aldehydes at Room Temperature. J Org Chem 2022; 87:2410-2420. [PMID: 35133151 DOI: 10.1021/acs.joc.1c02307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A mild, greener approach toward thioamide synthesis has been developed. Its unique features include water-mediated reaction with no input energy, additives, or catalysts as well. The presented protocol is attractive with readily available starting materials and the use of different array amines, along with a scaled-up method. Biologically active molecules such as thionicotinamide and thioisonicotinamide can be synthesized from this procedure.
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Affiliation(s)
- Ankush Gupta
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Jigarkumar K Vankar
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Jaydeepbhai P Jadav
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
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6
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Ultrasound assisted synthesis of tetrazole based pyrazolines and isoxazolines as potent anticancer agents via inhibition of tubulin polymerization. Bioorg Med Chem Lett 2020; 30:127592. [PMID: 33010448 DOI: 10.1016/j.bmcl.2020.127592] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/18/2020] [Accepted: 09/25/2020] [Indexed: 02/07/2023]
Abstract
In search of new active molecules against MCF-7, A549 and HepG2, tetrazole based pyrazoline and isoxazoline derivatives under both conventional and ultrasonic irradiation method were designed and efficiently synthesized. Structures of newly synthesized compounds 5a-h and 6a-h were characterized by 1H NMR, 13C NMR, MS and elemental analysis. Several derivatives were found to be excellent cytotoxic against MCF-7, A549 and HepG2 cell lines characterized by lower IC50 values (0.78-3.12 µg/mL). Compounds 5b and 5c demonstrated an antiproliferative effect comparable to that of CA-4. Western blot analysis revealed that, reported compounds accumulate more tubulin in the soluble fraction. Docking studies suggested that, binding of these compounds mimics at the colchicine site of tubulin. In vitro study revealed that the tetrazole based pyrazolines and isoxazolines may possess ideal structural requirements for further development of novel therapeutic agents.
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7
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Tripathi G, Singh AK, Kumar A. Arylpyrazoles: Heterocyclic Scaffold of Immense Therapeutic Application. CURR ORG CHEM 2020. [DOI: 10.2174/1570179417999200628035645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Among the major class of heterocycles, the N-heterocycles, such as pyrazoles,
are scaffolds of vast medicinal values. Various drugs and other biologically active molecules
are known to contain these N-heterocycles as core motifs. Specifically, arylpyrazoles
have exhibited a diverse range of biological activities, including anti-inflammatory, anticancerous,
antimicrobial and various others. For instance, arylpyrazoles are present as
core moieties in various insecticides, fungicides and drugs such as Celebrex and Trocoxil.
The present review will be highlighting the significant therapeutic importance of pyrazole
derivatives developed in the last few years.
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Affiliation(s)
- Garima Tripathi
- Department of Chemistry, T. N. B. College, Tilka Manjhi Bhagalpur University, Bhagalpur, Bihar, India
| | - Anil Kumar Singh
- Department of Chemistry, School of Physical Sciences, Mahatma Gandhi Central University, Bihar, India
| | - Abhijeet Kumar
- Department of Chemistry, School of Physical Sciences, Mahatma Gandhi Central University, Bihar, India
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8
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Akhtar W, Marella A, Alam MM, Khan MF, Akhtar M, Anwer T, Khan F, Naematullah M, Azam F, Rizvi MA, Shaquiquzzaman M. Design and synthesis of pyrazole-pyrazoline hybrids as cancer-associated selective COX-2 inhibitors. Arch Pharm (Weinheim) 2020; 354:e2000116. [PMID: 33015829 DOI: 10.1002/ardp.202000116] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 08/22/2020] [Accepted: 09/11/2020] [Indexed: 12/25/2022]
Abstract
In continuation of our previous work on cancer and inflammation, 15 novel pyrazole-pyrazoline hybrids (WSPP1-15) were synthesized and fully characterized. The formation of the pyrazoline ring was confirmed by the appearance of three doublets of doublets in 1 H nuclear magnetic resonance spectra exhibiting an AMX pattern for three protons (HA , HM , and HX ) of the pyrazoline ring. All the synthesized compounds were screened for their in vitro anticancer activity against five cell lines, that is, MCF-7, A549, SiHa, COLO205, and HepG2 cells, using the MTT growth inhibition assay. 5-Fluorouracil was taken as the positive control in the study. It was observed that, among them, WSPP11 was found to be active against A549, SiHa, COLO205, and HepG2 cells, with IC50 values of 4.94, 4.54, 4.86, and 2.09 µM. All the derivatives were also evaluated for their cytotoxicity against HaCaT cells. WSPP11 was also found to be nontoxic against normal cells (cell line HaCaT), with an IC50 value of more than 50 µM. The derivatives were also evaluated for their in vitro anti-inflammatory activity by the protein (egg albumin) denaturation assay and the red blood cell membrane stabilizing assay, using diclofenac sodium and celecoxib as standard. Compounds that showed significant anticancer and anti-inflammatory activities were further studied for COX-2 inhibition. The manifestation of a higher COX-2 selectivity index of WSPP11 as compared with other derivatives and an in vitro anticancer activity against four cell lines further established that compounds that were more selective toward COX-2 also exhibited a better spectrum of activity against various cancer cell lines.
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Affiliation(s)
- Wasim Akhtar
- Drug Design and Medicinal Chemistry Laboratory, Jamia Hamdard, New Delhi, India
| | - Akranth Marella
- Fryer Global Regulatory Solutions and Services, Hyderabad, Telangana, India
| | | | - Mohemmed F Khan
- Drug Design and Medicinal Chemistry Laboratory, Jamia Hamdard, New Delhi, India
| | - Mymoona Akhtar
- Drug Design and Medicinal Chemistry Laboratory, Jamia Hamdard, New Delhi, India
| | - Tariq Anwer
- Department of Pharmacology, College of Pharmacy, Jazan University, Gizan, Saudi Arabia
| | - Farah Khan
- Department of Biochemistry, Jamia Hamdard, New Delhi, India
| | - Md Naematullah
- Department of Biochemistry, Jamia Hamdard, New Delhi, India
| | - Faizul Azam
- Department of Pharmaceutical Chemistry & Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unaizah, Saudi Arabia
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9
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Chugh A, Kumar A, Verma A, Kumar S, Kumar P. A review of antimalarial activity of two or three nitrogen atoms containing heterocyclic compounds. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02604-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Sharma M, Prasher P. An epigrammatic status of the ' azole'-based antimalarial drugs. RSC Med Chem 2020; 11:184-211. [PMID: 33479627 PMCID: PMC7536834 DOI: 10.1039/c9md00479c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 11/26/2019] [Indexed: 11/21/2022] Open
Abstract
The development of multidrug resistance in the malarial parasite has sabotaged majority of the eradication efforts by restraining the inhibition profile of first line as well as second line antimalarial drugs, thus necessitating the development of novel pharmaceutics constructed on appropriate scaffolds with superior potency against the drug-resistant and drug-susceptible Plasmodium parasite. Over the past decades, the infectious malarial parasite has developed resistance against most of the contemporary therapeutics, thus necessitating the rational development of novel approaches principally focused on MDR malaria. This review presents an epigrammatic collation of the epidemiology and the contemporary antimalarial therapeutics based on the 'azole' motif.
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Affiliation(s)
- Mousmee Sharma
- Department of Chemistry , Uttaranchal University , Dehradun 248007 , India
- UGC Sponsored Centre for Advanced Studies , Department of Chemistry , Guru Nanak Dev University , Amritsar 143005 , India
| | - Parteek Prasher
- Department of Chemistry , University of Petroleum & Energy Studies , Dehradun 248007 , India . ;
- UGC Sponsored Centre for Advanced Studies , Department of Chemistry , Guru Nanak Dev University , Amritsar 143005 , India
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11
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Marella A, Verma G, Shaquiquzzaman M, Khan MF, Akhtar W, Alam MM. Malaria Hybrids: A Chronological Evolution. Mini Rev Med Chem 2019; 19:1144-1177. [PMID: 30887923 DOI: 10.2174/1389557519666190315100027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 05/27/2018] [Accepted: 11/03/2018] [Indexed: 01/13/2023]
Abstract
Malaria, an upsetting malaise caused by a diverse class of Plasmodium species affects about 40% of the world's population. The distress associated with it has reached colossal scales owing to the development of resistance to most of the clinically available agents. Hence, the search for newer molecules for malaria treatment and cure is an incessant process. After the era of a single molecule for malaria treatment ended, there was an advent of combination therapy. However, lately there had been reports of the development of resistance to many of these agents as well. Subsequently, at present most of the peer groups working on malaria treatment aim to develop novel molecules, which may act on more than one biological processes of the parasite life cycle, and these scaffolds have been aptly termed as Hybrid Molecules or Double Drugs. These molecules may hold the key to hitherto unknown ways of showing a detrimental effect on the parasite. This review enlists a few of the recent advances made in malaria treatment by these hybrid molecules in a sequential manner.
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Affiliation(s)
| | - Garima Verma
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi - 110062, India
| | - Md Shaquiquzzaman
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi - 110062, India
| | - Md Faraz Khan
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi - 110062, India
| | - Wasim Akhtar
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi - 110062, India
| | - Md Mumtaz Alam
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi - 110062, India
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12
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Thillainayagam M, Ramaiah S, Anbarasu A. Molecular docking and dynamics studies on novel benzene sulfonamide substituted pyrazole-pyrazoline analogues as potent inhibitors of Plasmodium falciparum Histo aspartic protease. J Biomol Struct Dyn 2019; 38:3235-3245. [PMID: 31411122 DOI: 10.1080/07391102.2019.1654923] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Malaria is the major health issue in African, Asian and Mediterranean regions of the world. Due to the emerging resistance by the parasites and mosquitoes for the current medications and insecticides, respectively, the malaria free human world can be attained only by the novel design and development of new anti-malarial drugs. Hence, we attempted to carry out in silico screening of benzene sulfonamide substituted pyrazole-pyrazoline series against Histo aspartic protease. Our results reveal that the 65% of the data set with the free binding energy in the range of -11.58 to -11.21 kcal/mol, which is categorized as 'high scoring'. Ligands are docked with the catalytic residues Asp 215, Ser 75, Thr 33 and Ala 217, respectively. Molecular dynamic simulation study of free enzyme and the enzyme complex with 4-(5-(4-methoxyphenyl)-1'phenyl-3'-(p-tolyl)-3,4-1'H,2H-[3,4'-bipyrazol]-2-yl)benezenesulfonamide indicated structural stability. The trajectory analysis of complex reveals that the HAP-ligand complex is more stable than the free HAP. We are of the opinion that our results will be useful for designing potential anti-malarial compounds. AbbreviationsADTauto dock toolsBSPPbenzene sulfonamide substituted pyrazole-pyrazolineCQchloroquineHAPhisto aspartic proteaseKKelvinMDmolecular dockingMM/PBSAmolecular mechanics/Poisson Boltzmann surface areaNVTnormal volume and temperatureNPTnormal pressure and temperatureNsnanosecondsPDBprotein data bank.pdbprogram data base formatP. falciparumPlasmodium falciparumPspicosecondsPMsplasmepsinsP. vivaxPlasmodium vivaxRgradius of gyrationRMSDroot mean square deviationRMSFroot mean square fluctuationWHOWorld Health OrganizationCommunicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mahalakshmi Thillainayagam
- Medical & Biological Computing Laboratory, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Sudha Ramaiah
- Medical & Biological Computing Laboratory, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Anand Anbarasu
- Medical & Biological Computing Laboratory, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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13
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Hebishy AMS, Elgemeie GH, Elwahy AHM. Novel Bis(2‐cyanoketene‐
S
,
S
‐/
S
,
N
‐acetals): Versatile Precursors for Novel Bis(aminopyrazole) Derivatives. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ali M. S. Hebishy
- Chemistry Department, Faculty of ScienceHelwan University Cairo Egypt
| | - Galal H. Elgemeie
- Chemistry Department, Faculty of ScienceHelwan University Cairo Egypt
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14
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Kumar G, Tanwar O, Kumar J, Akhter M, Sharma S, Pillai CR, Alam MM, Zama MS. Pyrazole-pyrazoline as promising novel antimalarial agents: A mechanistic study. Eur J Med Chem 2018; 149:139-147. [PMID: 29499486 DOI: 10.1016/j.ejmech.2018.01.082] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/17/2018] [Accepted: 01/25/2018] [Indexed: 11/19/2022]
Abstract
A series of pyrazole-pyrazoline substituted with benzenesulfonamide were synthesized and evaluated for their antimalarial activity in vitro and in vivo. The compounds were active against both chloroquine (CQ) sensitive (3D7) and CQ resistant (RKL-9) strains of Plasmodium falciparum. Seven compounds (7e, 7i, 7j, 7l, 7m, 7o and 7p) exhibiting EC50 less than 2 μM. A mechanistic study of compound 7o revealed that these compound act through the inhibition of β-hematin. The study indicated that these compounds can serve as lead compounds for further development of potent antimalarial drugs.
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Affiliation(s)
- Gautam Kumar
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Omprakash Tanwar
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Jitender Kumar
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Mymoona Akhter
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India.
| | - Supriya Sharma
- National Institute of Malaria Research (ICMR), Sector 8, Dwarka, New Delhi, 110077, India
| | - C R Pillai
- National Institute of Malaria Research (ICMR), Sector 8, Dwarka, New Delhi, 110077, India
| | - Md Mumtaz Alam
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - M S Zama
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
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15
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Verma G, Chashoo G, Ali A, Khan MF, Akhtar W, Ali I, Akhtar M, Alam MM, Shaquiquzzaman M. Synthesis of pyrazole acrylic acid based oxadiazole and amide derivatives as antimalarial and anticancer agents. Bioorg Chem 2018; 77:106-124. [PMID: 29353728 DOI: 10.1016/j.bioorg.2018.01.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/31/2017] [Accepted: 01/03/2018] [Indexed: 01/03/2023]
Abstract
Depravity of malaria in terms of morbidity and mortality in human beings makes it a major health issue in tropical and subtropical areas of the globe. Drug counterfeiting and non-adherence to the treatment regimen have significantly contributed to development and spread of multidrug resistance that has highlighted the need for development of novel and more efficient antimalarial drugs. Complexity associated with cancer disease and prevalence of diversified cell populations vindicates highly specific treatment options for treatment of cancer. Resistance to these anticancer agents has posed a great hindrance in successful treatment of cancer. Pondering this ongoing situation, it was speculated to develop novel compounds targeting malaria and cancer. Moving on the same aisle, we synthesized pyrazole acrylic acid based oxadiazole and amide derivatives using multi-step reaction pathways (6a-x; 6a'-h'). Schizont maturation inhibition assay was employed to determine antimalarial potential. Compound 6v emerged as the most potent antimalarial agent targeting falcipain-2 enzyme. Anticancer activity was done using sulforhodamine B assay. Compounds 6b' and 6g' demonstrated promising results against all the tested cell lines. Further, Microscopic view clearly indicated formation of apoptotic bodies, chromatin condensation, shrinkage of cells and bleb formation. Validation of the results was achieved using molecular docking studies. From the obtained results, it was observed that cyclization (oxadiazole) favored antimalarial activity while non-cyclized compounds (amides) emerged as better anticancer agents.
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Affiliation(s)
- Garima Verma
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard, New Delhi 110062, India
| | - Gousia Chashoo
- Cancer Pharmacology Division, Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu 180001, India
| | - Asif Ali
- Natural Product Chemistry Division, Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
| | - Mohemmed Faraz Khan
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard, New Delhi 110062, India
| | - Wasim Akhtar
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard, New Delhi 110062, India
| | - Israr Ali
- Department of Flow Chemistry GP&T, R&D II, Sun Pharmaceutical Industries Ltd., Gurugram, Haryana, India
| | - Mymoona Akhtar
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard, New Delhi 110062, India
| | - Mohammad Mumtaz Alam
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard, New Delhi 110062, India
| | - Mohammad Shaquiquzzaman
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard, New Delhi 110062, India.
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Simijonović D, Petrović ZD, Milovanović VM, Petrović VP, Bogdanović GA. A new efficient domino approach for the synthesis of pyrazolyl-phthalazine-diones. Antiradical activity of novel phenolic products. RSC Adv 2018; 8:16663-16673. [PMID: 35540516 PMCID: PMC9080326 DOI: 10.1039/c8ra02702a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 04/27/2018] [Indexed: 11/21/2022] Open
Abstract
Pyrazolyl-phthalazine-dione derivatives (PPDs) were synthetized in the ionic liquid catalyzed one-pot multicomponent reaction of acetylacetone, 2,3-dihydrophthalazine-1,4-dione, and different aldehydes in moderate to good yields. Six new PPDs were obtained, and the crystal structure of 2-acetyl-1-(4-fluorophenyl)-3-methyl-1H-pyrazolo[1,2-b]phthalazine-5,10-dione (PPD-4) was determined. The most interesting structural features of the novel PPD-4 is the formation of a rather short intermolecular distance between the F atom of one molecule and the midpoint of the neighbouring six-membered heterocyclic ring. This interaction arranges all molecules into parallel supramolecular chains. UV-Vis spectra of all PPDs were acquired and compared to the simulated ones obtained with TD-DFT. All synthetized compounds were subjected to evaluation of their in vitro antioxidative activity using a stable DPPH radical. It was shown that PPD-7, with a catechol motive, is the most active antioxidant, while PPD-9, with two neighbouring methoxy groups to the phenolic OH, exerted a somewhat lower, but significant antioxidative potential. The results of DFT thermodynamical study are in agreement with experimental findings that PPD-7 and PPD-9 should be considered as powerful radical scavengers. In addition, the obtained theoretical results (bond dissociation and proton abstraction energies) specify SPLET as a prevailing radical scavenging mechanism in polar solvents, and HAT in solvents with lower polarity. On the other hand, the obtained reaction enthalpies for inactivation of free radicals suggest competition between HAT and SPLET mechanisms, except in the case of the ˙OH radical in polar solvents, where HAT is labeled as prefered. An efficient one-pot method for the synthesis of pyrazolyl-phthalazine-diones was developed. New phenolic compounds exerted good to excellent antioxidative activity.![]()
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Affiliation(s)
- Dušica Simijonović
- University of Kragujevac
- Faculty of Science
- Department of Chemistry
- 34000 Kragujevac
- Serbia
| | - Zorica D. Petrović
- University of Kragujevac
- Faculty of Science
- Department of Chemistry
- 34000 Kragujevac
- Serbia
| | - Vesna M. Milovanović
- University of Kragujevac
- Faculty of Science
- Department of Chemistry
- 34000 Kragujevac
- Serbia
| | - Vladimir P. Petrović
- University of Kragujevac
- Faculty of Science
- Department of Chemistry
- 34000 Kragujevac
- Serbia
| | - Goran A. Bogdanović
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 11001 Belgrade
- Serbia
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Tazeem, Bhat AR, Han X, Athar F. Synthesis, Structure-Activity Relationship and Antimicrobial Evaluation of Methyl-Substituted Tetrazoloquinoline-Based Pyrazolinethioamides. ChemistrySelect 2016. [DOI: 10.1002/slct.201601002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tazeem
- Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (Central, University); New Delhi 110025 India
- State Key Laboratory of Virology; Wuhan University School of Pharmaceutical Sciences; Wuhan China 430071
| | - Abdul Roouf Bhat
- Department of Chemistry; S. P. College; M.A Road Srinagar- 190001 India
| | - Xin Han
- State Key Laboratory of Virology; Wuhan University School of Pharmaceutical Sciences; Wuhan China 430071
| | - Fareeda Athar
- Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (Central, University); New Delhi 110025 India
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Desai NC, Bhatt MJ. Optimized Synthesis of Novel Pyrazole Based Thiazole Derivatives and their Antimicrobial Evaluation. ACTA ACUST UNITED AC 2016. [DOI: 10.18052/www.scipress.com/ilcpa.66.109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A series of nitro pyrazole based thiazole derivatives compounds were synthesized by using solid base catalyst. The process was further optimized by setting up the solvent and catalyst ratio. The structures of these compounds were elucidated by spectral (IR, 1H NMR, 13C NMR, mass spectra) analysis. Synthesized compounds were screened for their in vitro antibacterial activity against the representative panel of Gram-positive (Staphylococcus aureus, Streptococcus pyogenes) and Gram-negative (Escherichia coli, Pseudomonas aeruginosa) bacteria. These compounds were tested for their inhibitory action against strains of fungi (Candida albicans, Aspergillusniger, Aspergillusclavatus).
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