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Design, Synthesis, Antimicrobial Evaluation, Antioxidant Studies, and Molecular Docking of Some New 1
H
‐Benzimidazole Derivatives. ChemistrySelect 2023. [DOI: 10.1002/slct.202203651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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2
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IŞIK A, Acar Çevik U, Çelik I, Bostancı HE, Karayel A, Gündoğdu G, Ince U, Koçak A, Özkay Y, Kaplancıklı ZA. Benzimidazole-hydrazone derivatives: Synthesis, in vitro anticancer, antimicrobial, antioxidant activities, in silico DFT and ADMET studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Zalaru C, Dumitrascu F, Draghici C, Tarcomnicu I, Marinescu M, Nitulescu GM, Tatia R, Moldovan L, Popa M, Chifiriuc MC. New Pyrazolo-Benzimidazole Mannich Bases with Antimicrobial and Antibiofilm Activities. Antibiotics (Basel) 2022; 11:antibiotics11081094. [PMID: 36009963 PMCID: PMC9405415 DOI: 10.3390/antibiotics11081094] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/07/2022] [Accepted: 08/09/2022] [Indexed: 12/04/2022] Open
Abstract
A new series of pyrazolo-benzimidazole hybrid Mannich bases were synthesized, characterized by 1H-NMR, 13C-NMR, IR, UV-Vis, MS, and elemental analysis. In vitro cytotoxicity of the new compounds studied on fibroblast cells showed that the newly synthesized pyrazolo-benzimidazole hybrid derivatives were noncytotoxic until the concentration of 1 μM and two compounds presented a high degree of biocompatibility. The antibacterial and antibiofilm activity of the newly synthesized compounds was assayed on Gram-positive Staphylococcus aureus ATCC25923, Enterococcus faecalis ATCC29212, and Gram-negative Pseudomonas aeruginosa ATCC27853, Escherichia coli ATCC25922 strains. All synthesized compounds 5a–g are more active against all three tested bacterial strains Staphylococcus aureus ATCC25923, Enterococcus faecalis ATCC29212, and Escherichia coli ATCC25922 than reference drugs (Metronidazole, Nitrofurantoin), with the exception of compounds 5d and 5g, which are less active compared to Nitrofurantoin, and all synthesized compounds 5a–g are more active against Pseudomonas aeruginosa ATCC27853 compared to reference drugs (Metronidazole, Nitrofurantoin). Compound 5f showed the best activity against Staphylococcus aureus ATCC 25923, with a MIC of 150 μg/mL and has also inhibited the biofilm formed by all the bacterial strains, having an MBIC of 310 µg/mL compared to the reference drugs (Metronidazole, Nitrofurantoin).
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Affiliation(s)
- Christina Zalaru
- Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Road, 030018 Bucharest, Romania
- Correspondence: (C.Z.); (M.M.)
| | - Florea Dumitrascu
- “C.D. Nenitescu” Institute of Organic and Supramolecular Chemistry Romanian Academy, 202 B Spl. Independentei, 060023 Bucharest, Romania
| | - Constantin Draghici
- “C.D. Nenitescu” Institute of Organic and Supramolecular Chemistry Romanian Academy, 202 B Spl. Independentei, 060023 Bucharest, Romania
| | - Isabela Tarcomnicu
- National Institute for Infectious Diseases “Prof. Dr. Matei Balș”, No. 1 Dr. Calistrat Grozovici Street, 021105 Bucharest, Romania
- Cytogenomic Medical Laboratory, 35 Calea Floreasca, 014462 Bucharest, Romania
| | - Maria Marinescu
- Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Road, 030018 Bucharest, Romania
- Correspondence: (C.Z.); (M.M.)
| | - George Mihai Nitulescu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania
| | - Rodica Tatia
- Department of Cellular and Molecular Biology, National Institute of Research and Development for Biological Sciences, 296 Splaiul Independenţei, 060031 Bucharest, Romania
| | - Lucia Moldovan
- Department of Cellular and Molecular Biology, National Institute of Research and Development for Biological Sciences, 296 Splaiul Independenţei, 060031 Bucharest, Romania
| | - Marcela Popa
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1-3 Aleea Portocalelor St., 60101 Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1-3 Aleea Portocalelor St., 60101 Bucharest, Romania
- Academy of Romanian Scientist, Ilfov No. 3, 050044 Bucharest, Romania
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Ibrahim OF, Bakhite EA, Metwally SAM, El-Ossaily YA, Abdu-Allah HHM, Al-Taifi EA, Kandel M. Synthesis, Characterization, and Antifungal Activity of Some New Thieno[2,3-b]pyridines Incorporating Quinazoline or Benzimidazole Moiety. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1068162021040117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Karayel A. Molecular stabilities, conformational analyses and molecular docking studies of benzimidazole derivatives bearing 1,2,4-triazole as EGFR inhibitors. Struct Chem 2021. [DOI: 10.1007/s11224-021-01760-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Pyrimido[1,2- a]benzimidazoles: synthesis and perspective of their pharmacological use. Chem Heterocycl Compd (N Y) 2021; 57:383-409. [PMID: 34024913 PMCID: PMC8121645 DOI: 10.1007/s10593-021-02916-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/12/2021] [Indexed: 01/26/2023]
Abstract
The review presents data on the synthesis as well as studies of biological activity of new derivatives of pyrimido[1,2-a]benzimidazoles published over the last decade. The bibliography of the review includes 136 sources.
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Kotan G, Gökce H, Akyıldırım O, Yüksek H, Beytur M, Manap S, Medetalibeyoğlu H. Synthesis, Spectroscopic and Computational Analysis of 2-[(2-Sulfanyl-1H-benzo[d]imidazol-5-yl)iminomethyl]phenyl Naphthalene-2-sulfonate. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428020110135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Darweesh AF, Abd El-Fatah NA, Abdelhamid IA, Elwahy AHM, Salem ME. Investigation of the reactivity of (1 H-benzo[ d]imidazol-2-yl)acetonitrile and (benzo[ d]thiazol-2-yl)acetonitrile as precursors for novel bis(benzo[4,5]imidazo[1,2- a]pyridines) and bis(benzo[4,5]thiazolo[3,2- a]pyridines). SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1784436] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ahmed F. Darweesh
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | | | | | - Ahmed H. M. Elwahy
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Mostafa E. Salem
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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Karadayi FZ, Yaman M, Kisla MM, Keskus AG, Konu O, Ates-Alagoz Z. Design, synthesis and anticancer/antiestrogenic activities of novel indole-benzimidazoles. Bioorg Chem 2020; 100:103929. [PMID: 32464404 DOI: 10.1016/j.bioorg.2020.103929] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 05/06/2020] [Accepted: 05/08/2020] [Indexed: 12/30/2022]
Abstract
Indole-benzimidazoles have recently gained attention due to their antiproliferative and antiestrogenic effects. However, their structural similarities and molecular mechanisms shared with selective estrogen receptor modulators (SERMs) have not yet been investigated. In this study, we synthesized novel ethylsulfonyl indole-benzimidazole derivatives by substituting the first (R1) and fifth (R2) positions of benzimidazole and indole groups, respectively. Subsequently, we performed 1H NMR, 13C NMR, and Mass spectral and in silico docking analyses, and anticancer activity screening studies of these novel indole-benzimidazoles. The antiproliferative effects of indole-benzimidazoles were found to be more similar between the estrogen (E2) responsive cell lines MCF-7 and HEPG2 in comparison to the Estrogen Receptor negative (ER-) cell line MDA-MB-231. R1:p-fluorobenzyl group members were selected as lead compounds for their potent anticancer effects and moderate structural affinity to ER. Microarray expression profiling and gene enrichment analyses (GSEA) of the selected compounds (R1:p-fluorobenzyl: 48, 49, 50, 51; R1:3,4-difluorobenzyl: 53) helped determine the similarly modulated cellular signaling pathways among derivatives. Moreover, we identified known compounds that have significantly similar gene signatures to that of 51 via queries performed in LINCS database; and further transcriptomics comparisons were made using public GEO datasets (GSE35428, GSE7765, GSE62673). Our results strongly demonstrate that these novel indole-benzimidazoles can modulate ER target gene expression as well as dioxin-mediated aryl hydrocarbon receptor and amino acid deprivation-mediated integrated stress response signaling in a dose-dependent manner.
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Affiliation(s)
- Fikriye Zengin Karadayi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, 06100 Ankara, Turkey
| | - Murat Yaman
- Interdisciplinary Program in Neuroscience, Bilkent University, 06800 Ankara, Turkey
| | - Mehmet Murat Kisla
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, 06100 Ankara, Turkey
| | - Ayse G Keskus
- Interdisciplinary Program in Neuroscience, Bilkent University, 06800 Ankara, Turkey
| | - Ozlen Konu
- Department of Molecular Biology and Genetics, Bilkent University, 06800 Ankara, Turkey; Interdisciplinary Program in Neuroscience, Bilkent University, 06800 Ankara, Turkey; UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey.
| | - Zeynep Ates-Alagoz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, 06100 Ankara, Turkey.
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Design, synthesis and ADMET prediction of bis-benzimidazole as anticancer agent. Bioorg Chem 2020; 96:103576. [PMID: 31986463 DOI: 10.1016/j.bioorg.2020.103576] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/07/2019] [Accepted: 01/08/2020] [Indexed: 01/01/2023]
Abstract
A new series of bis-benzimidazole clubbed with primary amine (3i-iii) and aromatic aldehydes (4i-ix) were design and synthesize with an intention to search an anticancer lead compound under microwave irradiation in good yields. Further, the spectral characterization of synthetic compounds were done with modern instrumental techniques such as FTIR, NMR (1H and 13C), MS and elemental analysis. Anticancer activities of synthesized compounds were investigated at National Cancer Institute (NCI) against NCI 60 cell line panel, results showed good to notable anticancer activity. With the help of molinspiration, drug like properties and bioactivity score for drug targets of synthetic compounds were predicted and found to obey the Lipinski's rule, result indicates that the derivatives are orally active molecules. Osiris property explorer was used for the prediction of drug relevant properties and toxicity of synthetic compounds. Pre ADMET and Lazar toxicity was also used to estimate ADME and toxicity of synthetic compounds. Two compounds, 4i [(Z)-2-((1H-benzo[d]imidazol-2-yl) methyl)-1-(1H-benzo[d]imidazol-2-yl)-3-(thiophen-2-yl) prop-2-en-1-one] and 4iii [(Z)-2-((1H-benzo[d]imidazol-2-yl) methyl)-1-(1H-benzo [d] imidazol-2-yl)-3-(1H-pyrrol-2-yl)prop-2-en-1-one] were exhibited highest drug score and emerged as lead compounds and motivates for further development of more effective and safer compounds.
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Bharty M, Bharti A, Chaurasia R, Chaudhari U, Kushawaha S, Sonkar P, Ganesan V, Butcher R. Synthesis and characterization of Mn(II) complexes of 4-phenyl(phenyl-acetyl)-3-thiosemicarbazide, 4-amino-5-phenyl-1,2,4-triazole-3-thiolate, and their application towards electrochemical oxygen reduction reaction. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.114125] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Kumar N, Sreenivasa S, Kalal BS, Kumar V, Holla BS, Pai VR, Mohan NR, Govindaiah S. Benzo[d]imidazol-5-yl)-5-(substituted)-1,3,4-Oxadiazoles: Synthesis, Anticancer, Antimicrobial and In Silico Studies. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180816666181220123924] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background:
Cancer is a fatal disease for mankind; continuous research is still going on
for the invention of potent anticancer drugs. In this view, 1, 3, 4-Oxadiazoles are privileged molecules
which attracted medicinal chemists towards their anticancer properties.
Methods:
A new series of benzo[d]imidazol-5-yl)-5-(substituted)-1,3,4-oxadiazole derivatives was
synthesized in an efficient ‘one-pot’ nitro reductive cyclization using sodium dithionite as a cyclizing
agent by a conventional method with good yield. All the structures of the synthesized molecules were
characterized by IR, 1H NMR, HRMS and Mass spectral analysis. Anticancer activity screening
against A375 melanoma cancer cell line and MDA-MB-231 breast cancer cell line along with antimicrobial
activity were carried out using agar well diffusion method.
Results:
Compounds 8a and 8j of the series emerged as potent anticancer agents against A375 melanoma
cancer cell line with IC50 47.06 µM and 36.76 µM, respectively. In silico studies also revealed
that compounds 8a and 8j showed highest interaction with 2OH4 protein of VEGFR-2 tyrosine kinase.
Substantial antibacterial and antifungal activities against the tested microorganism were observed
for compounds 8j and 8g.
Conclusion:
Potent anticancer property has been observed with 1,3,4-Oxadiazole linked tetrafluro
substituted benzene ring 8j indicating that future research on these type of molecules can be
continued to improve the anticancer activity.
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Affiliation(s)
- Naveen Kumar
- Department of Chemistry, Sri Dharmasthala Manjunatheshwara College (Autonomous), Ujire, Karnataka, India
| | - Swamy Sreenivasa
- Department of Studies and Research in Organic Chemistry, Tumkur University, Tumkur, Karnataka, India
| | | | - Vasantha Kumar
- Department of Chemistry, Sri Dharmasthala Manjunatheshwara College (Autonomous), Ujire, Karnataka, India
| | - Bantwal Shivarama Holla
- Department of Chemistry, Sri Dharmasthala Manjunatheshwara College (Autonomous), Ujire, Karnataka, India
| | - Vinitha Ramanath Pai
- Department of Biochemistry, Yenepoya University, Deralakatte, Mangalore, Karnataka, India
| | | | - Shivaraj Govindaiah
- Department of Studies and Research in Organic Chemistry, Tumkur University, Tumkur, Karnataka, India
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Synthesis of Surfactants Derived from 2-Mercaptobenzimidazole and Study of Their Acute Toxicity and Analgesic and Psychotropic Activities. Biochem Res Int 2019; 2019:9615728. [PMID: 31467714 PMCID: PMC6701276 DOI: 10.1155/2019/9615728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/11/2019] [Indexed: 11/30/2022] Open
Abstract
The aim of the present study is to synthesize cationic salts from a relatively toxic compound named 2-mercaptobenzimidazole and to evaluate some of their pharmacological properties. The acute toxicity of these salts is evaluated according to OECD 423 Guidelines at the doses of 300 and 2000 mg/kg; their peripheral analgesic effect is studied using the Koster test at the therapeutic dose of 200 mg/kg and their sedative action is evaluated using Traction, Chimney, Hole-board, and Rotarod tests at the doses of 200 and 400 mg/kg. All synthesized molecules show no acute toxicity according to OECD Code 423 guidelines at doses ranging from 300 to 2000 mg/kg and do not cause any obesity or anorexia. Also, the results of the Koster test show that the studied compounds have an average analgesic effect at the dose of 200 mg/kg compared to acetylsalicylic acid. In addition, the elaborated compounds have shown a moderate sedative effect at the dose of 400 mg/kg, in comparison to 2-mercaptobenzimidazole (400 mg/kg) and Bromazepam (20 mg/kg). These compounds have no cataleptic and hypnotic effects on the central nervous system at the doses of 200 and 400 mg/kg. These results argue in favor of a possible integration of the most active salts tested in the pharmaceutical industry owing to their analgesic and sedative effects.
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Tahlan S, Kumar S, Narasimhan B. Antimicrobial potential of 1 H-benzo[ d]imidazole scaffold: a review. BMC Chem 2019; 13:18. [PMID: 31384767 PMCID: PMC6661827 DOI: 10.1186/s13065-019-0521-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/16/2019] [Indexed: 03/01/2023] Open
Abstract
Background Benzimidazole is a heterocyclic moiety whose derivatives are present in many of the bioactive compounds and posses diverse biological and clinical applications. Benzimidazole agents are the vital pharmacophore and privileged sub-structures in chemistry of medicine. They have received much interest in drug discovery because benzimidazoles exhibited enormous significance. So attempts have been made to create repository of molecules and evaluate them for prospective inherent activity. They are extremely effective both with respect to their inhibitory activity and favorable selectivity ratio. Conclusion Benzimidazole is most promising category of bioactive heterocyclic compound that exhibit a wide variety of biological activities in medicinal field. The present review only focus on antimicrobial activity of reported benzimidazole derivatives may serve as valuable source of information for researchers who wish to synthesize new molecules of benzimidazole nucleus which have immense potential to be investigated for newer therapeutic possibilities.![]()
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Affiliation(s)
- Sumit Tahlan
- Faculty of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001 India
| | - Sanjiv Kumar
- Faculty of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001 India
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Karayel A, Özbey S, Kuş C, Ayhan-Kılcıgil G. Restricted rotation around the methylene bridge of 5-(2-p-(chlorophenyl)benzimidazole-1-yl)methyl-4-(o-substitutedphenyl)-2,4-dihydro-[1,2,4]-triazole-3-thiones as evidenced by NMR, X-RAY and DFT studies and the importance of low energy rotational conformers. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Raj M, Padhi SK. Synthesis, Characterization, and Structure of Quinoline‐based Benzimidazole Derivatives. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3481] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Manaswini Raj
- Artificial Photosynthesis Laboratory, Department of Applied ChemistryIndian Institute of Technology (Indian School of Mines), Dhanbad Jharkhand 826004 India
| | - Sumanta Kumar Padhi
- Artificial Photosynthesis Laboratory, Department of Applied ChemistryIndian Institute of Technology (Indian School of Mines), Dhanbad Jharkhand 826004 India
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17
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Spectroscopic investigation, fungicidal activity and molecular dynamics simulation on benzimidazol-2-yl carbamate derivatives. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.092] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Mullagiri K, Nayak VL, Sunkari S, Mani GS, Guggilapu SD, Nagaraju B, Alarifi A, Kamal A. New (3-(1 H-benzo[ d]imidazol-2-yl))/(3-(3 H-imidazo[4,5- b]pyridin-2-yl))-(1 H-indol-5-yl)(3,4,5-trimethoxyphenyl)methanone conjugates as tubulin polymerization inhibitors. MEDCHEMCOMM 2017; 9:275-281. [PMID: 30108921 DOI: 10.1039/c7md00450h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 11/21/2017] [Indexed: 01/11/2023]
Abstract
A series of new (3-(1H-benzo[d]imidazol-2-yl))/(3-(3H-imidazo[4,5-b]pyridin-2-yl))-(1H-indol-5-yl)(3,4,5-trimethoxyphenyl)methanone conjugates 4-6(a-i) were synthesized and evaluated for their antiproliferative activity on selected human cancer cell lines such as prostate (DU-145), lung (A549), cervical (HeLa) and breast (MCF-7). Most of these conjugates showed considerable cytotoxicity with IC50 values ranging from 0.54 to 31.86 μM. Among them, compounds 5g and 6f showed significant activity against human prostate cancer cell line DU-145 with IC50 values of 0.68 μM and 0.54 μM, respectively. Tubulin polymerization assay and immunofluorescence analysis results suggest that these compounds effectively inhibit microtubule assembly formation in DU-145. Further, the apoptosis-inducing ability of these derivatives (5g and 6f) was confirmed by Hoechst staining, measurement of mitochondrial membrane potential and ROS generation and annexin V-FITC assays.
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Affiliation(s)
- Kishore Mullagiri
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - V Lakshma Nayak
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - Satish Sunkari
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - Geeta Sai Mani
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India
| | - Sravanthi Devi Guggilapu
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India
| | - Burri Nagaraju
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - Abdullah Alarifi
- Catalytic Chemistry Research Chair , Chemistry Department , College of Science , King Saud University , Riyadh 11451 , Saudi Arabia
| | - Ahmed Kamal
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India . .,Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India.,Catalytic Chemistry Research Chair , Chemistry Department , College of Science , King Saud University , Riyadh 11451 , Saudi Arabia
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Thio-functionalized carbohydrate thiosemicarbazones and evaluation of their anticancer activity. Bioorg Med Chem Lett 2017; 27:2713-2720. [DOI: 10.1016/j.bmcl.2017.04.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 04/14/2017] [Accepted: 04/15/2017] [Indexed: 12/11/2022]
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Ajani OO, Aderohunmu DV, Ikpo CO, Adedapo AE, Olanrewaju IO. Functionalized Benzimidazole Scaffolds: Privileged Heterocycle for Drug Design in Therapeutic Medicine. Arch Pharm (Weinheim) 2016; 349:475-506. [PMID: 27213292 DOI: 10.1002/ardp.201500464] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 04/14/2016] [Accepted: 04/22/2016] [Indexed: 01/09/2023]
Abstract
Benzimidazole derivatives are crucial structural scaffolds found in diverse libraries of biologically active compounds which are therapeutically useful agents in drug discovery and medicinal research. They are structural isosteres of naturally occurring nucleotides, which allows them to interact with the biopolymers of living systems. Hence, there is a need to couple the latest information with the earlier documentations to understand the current status of the benzimidazole nucleus in medicinal chemistry research. This present work unveils the benzimidazole core as a multifunctional nucleus that serves as a resourceful tool of information for synthetic modifications of old existing candidates in order to tackle drug resistance bottlenecks in therapeutic medicine. This manuscript deals with the recent advances in the synthesis of benzimidazole derivatives, the widespread biological activities as well as pharmacokinetic reports. These present them as a toolbox for fighting infectious diseases and also make them excellent candidates for future drug design.
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Affiliation(s)
- Olayinka O Ajani
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
| | - Damilola V Aderohunmu
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
| | - Chinwe O Ikpo
- Department of Chemistry, University of the Western Cape, Bellville, Cape Town, South Africa
| | - Adebusayo E Adedapo
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
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Montalvão S, Leino TO, Kiuru PS, Lillsunde KE, Yli-Kauhaluoma J, Tammela P. Synthesis and Biological Evaluation of 2-Aminobenzothiazole and Benzimidazole Analogs Based on the Clathrodin Structure. Arch Pharm (Weinheim) 2015; 349:137-49. [PMID: 26709468 DOI: 10.1002/ardp.201500365] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 11/24/2015] [Accepted: 11/26/2015] [Indexed: 11/09/2022]
Abstract
A series of 2-aminobenzothiazole and benzimidazole analogs based on the clathrodin scaffold was synthesized and investigated for their antimicrobial and antiproliferative activities as well as for their effects in hepatitis C virus (HCV) replicon model. Compound 7, derived from 2-aminobenzothiazole, exhibited moderate antimicrobial activity only against the Gram-positive bacterium, Enterococcus faecalis. In the antiviral assay, compounds 4d and 7 were found to suppress the HCV replicon by >70%, but also to exhibit cytotoxicity against the host cells (35 and 44%, respectively). Compounds 4a and 7 demonstrated good activity in the antiproliferative assays on the human melanoma cell line A-375. To assess the selectivity of the effects between cancerous and noncancerous cells, a mouse fibroblast cell line was used. The IC50 values for compound 7 against the melanoma cell line A-375 and the fibroblast cell line BALB/c 3T3 were 16 and 71 µM, respectively, yielding fourfold selectivity toward the cancer cell line. These results suggest that compound 7 should be studied further in order to fully explore its potential for drug development.
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Affiliation(s)
- Sofia Montalvão
- Centre for Drug Research, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Teppo O Leino
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Paula S Kiuru
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Katja-Emilia Lillsunde
- Centre for Drug Research, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Jari Yli-Kauhaluoma
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Päivi Tammela
- Centre for Drug Research, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
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Karayel A, Özbey S, Ayhan-Kılcıgil G, Kuş C. Crystal structures and intermolecular interactions of two novel antioxidant triazolyl-benzimidazole compounds. CRYSTALLOGR REP+ 2015. [DOI: 10.1134/s1063774515070111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Kamal A, Rao AVS, Nayak VL, Reddy NVS, Swapna K, Ramakrishna G, Alvala M. Synthesis and biological evaluation of imidazo[1,5-a]pyridine-benzimidazole hybrids as inhibitors of both tubulin polymerization and PI3K/Akt pathway. Org Biomol Chem 2015; 12:9864-80. [PMID: 25354805 DOI: 10.1039/c4ob01930j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A series of imidazo[1,5-a]pyridine-benzimidazole hybrids (5a–aa) were prepared and evaluated for their cytotoxic activity against a panel of sixty human tumor cell lines. Among them compounds 5d and 5l showed significant cytotoxic activity with GI50 values ranging from 1.06 to 14.9 μM and 0.43 to 7.73 μM, respectively. Flow cytometric analysis revealed that these compounds arrest the cell cycle at G2/M phase and induced cell death by apoptosis. The tubulin polymerization assay (IC50 of 5d is 3.25 μM and 5l is 1.71 μM) and immunofluorescence analysis showed that these compounds effectively inhibited the microtubule assembly in human breast cancer cells (MCF-7). Further, the apoptotic effects of compounds were confirmed by Hoechst staining, mitochondrial membrane potential, cytochrome c release, ROS generation, caspase 9 activation and DNA fragmentation analysis. After treatment with these compounds for 48 h, p-PTEN and p-AKT levels were markedly decreased. Moreover, these compounds did not significantly inhibit the normal human embryonic kidney cells, HEK-293. The molecular docking simulations predicted the binding interactions of 5d and 5l with colchicine binding site of the tubulin, which is in compliance with the antiproliferative activity data.
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Affiliation(s)
- Ahmed Kamal
- Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India.
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24
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Yousef TA, Ahmed SF, El-Gammal OA, Abu El-Reash GM. Structural, spectral, thermal and biological studies on (Z)-N-benzoyl-N'-(2-oxo-2-(phenylamino)acetyl)carbamohydrazonothioic acid (H₂PABT) and its Cd(II), Hg(II), Zn(II) and U(VI)O₂²⁺ complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 146:228-239. [PMID: 25813180 DOI: 10.1016/j.saa.2015.01.128] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 01/16/2015] [Accepted: 01/29/2015] [Indexed: 06/04/2023]
Abstract
A new metal complexes formed by the reaction of (Z)-N-benzoyl-N'-(2-oxo-2-(phenylamino)acetyl)carbamohydrazonothioic acid (H2PABT) and Cd(II), Hg(II), Zn(II) and U(VI)O2(2+) ions. The isolated complexes were prepared and characterized by conventional techniques. The IR data revealed that the ligand behaves as mononegative tridentate in Zn(II) and U(VI)O2(2+) complexes also, binegative tetradentate on Cd(II) and Hg(II) complexes. On the basis of magnetic and electronic spectral data an octahedral geometry for the U(VI)O2(2+) complex, a tetrahedral structure for the Cd(II), Zn(II) and Hg(II) complexes have been proposed. The IR spectrum of ligand which determined experimentally is compared with those obtained theoretically from DFT calculations. Also, the bond lengths, bond angles, HOMO, LUMO and dipole moments have been calculated. The calculated HOMO-LUMO energy gap reveals that charge transfer occurs within the ligand molecules. The calculated values of binding energies indicates the stability of complexes is higher that of ligand. Also, the kinetic and thermodynamic parameters for the different thermal degradation steps of the complexes were determined by Coats-Redfern and Horowitz-Metzger methods. Moreover, the ligand and its complexes were screened against Bacillus subtilis as Gram positive bacteria and Escherichia coli Gram negative bacteria using the inhibitory zone diameter. Also the antitumor activities of the ligand and its complexes have been evaluated against liver (HePG2) and breast (MCF-7) cancer cells. Out of all the synthesized compounds, [Hg2(PABT)Cl2(H2O)2] and [(UO2)(HPABT)(OAc)(H2O)] complexes showed high antibacterial activity with 55.5% while H2PABT showed the best cytotoxic effect on liver and breast cancer cells with IC50 2.10 and 5.91 of cytotoxicity respectively.
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Affiliation(s)
- T A Yousef
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Egypt; Department of Chemistry, Science College, Al Imam Mohammad Bin Saud Islamic University, (IMSIU), P.O. Box 90950, Riyadh 11623, Saudi Arabia
| | - Sara F Ahmed
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - O A El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - G M Abu El-Reash
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt.
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Rodionov AN, Zherebker KY, Snegur LV, Korlyukov AA, Arhipov DE, Peregudov AS, Ilyin MM, Ilyin MM, Nikitin OM, Morozova NB, Simenel AA. Synthesis, structure and enantiomeric resolution of ferrocenylalkyl mercaptoazoles. Antitumor activity in vivo. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.01.031] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Tatarczak M, Flieger J, Wujec M, Pitucha M. Usefulness of thin-layer chromatography for the prediction of high-performance liquid chromatographic retention behavior of new 1,2,4-triazole and thiosemicarbazide derivatives. JPC-J PLANAR CHROMAT 2015. [DOI: 10.1556/jpc.28.2015.1.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Mirza B, Zeeb M. CuBr-Catalyzed Oxidation/Coupling: An Efficient and Applicable Strategy for the Synthesis of 2-Aryl Benzimidazoles from 1-Fluoro-2-nitrobenzene and Benzylamines. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.971971] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Behrooz Mirza
- Department of Applied Chemistry, Faculty of Science, Islamic Azad University, South Tehran Branch, Tehran, Iran
| | - Mohsen Zeeb
- Department of Applied Chemistry, Faculty of Science, Islamic Azad University, South Tehran Branch, Tehran, Iran
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Keri RS, Hiremathad A, Budagumpi S, Nagaraja BM. Comprehensive Review in Current Developments of Benzimidazole-Based Medicinal Chemistry. Chem Biol Drug Des 2014; 86:19-65. [PMID: 25352112 DOI: 10.1111/cbdd.12462] [Citation(s) in RCA: 202] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 10/12/2014] [Indexed: 12/13/2022]
Abstract
The properties of benzimidazole and its derivatives have been studied over more than one hundred years. Benzimidazole derivatives are useful intermediates/subunits for the development of molecules of pharmaceutical or biological interest. Substituted benzimidazole derivatives have found applications in diverse therapeutic areas such as antiulcer, anticancer agents, and anthelmintic species to name just a few. This work systematically gives a comprehensive review in current developments of benzimidazole-based compounds in the whole range of medicinal chemistry as anticancer, antibacterial, antifungal, anti-inflammatory, analgesic agents, anti-HIV, antioxidant, anticonvulsant, antitubercular, antidiabetic, antileishmanial, antihistaminic, antimalarial agents, and other medicinal agents. This review will further be helpful for the researcher on the basis of substitution pattern around the nucleus with an aim to help medicinal chemists for developing an SAR on benzimidazole drugs/compounds.
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Affiliation(s)
- Rangappa S Keri
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
| | - Asha Hiremathad
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
| | - Srinivasa Budagumpi
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
| | - Bhari Mallanna Nagaraja
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
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29
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Yadav G, Ganguly S. Structure activity relationship (SAR) study of benzimidazole scaffold for different biological activities: A mini-review. Eur J Med Chem 2014; 97:419-43. [PMID: 25479684 DOI: 10.1016/j.ejmech.2014.11.053] [Citation(s) in RCA: 242] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 11/23/2014] [Accepted: 11/25/2014] [Indexed: 11/17/2022]
Abstract
Benzimidazoles are the fused heterocyclic ring systems which form an integral part of vitamin B12 and have been luring many researchers all over the world to assess their potential therapeutic significance. They are known for their crucial role in numerous diseases via various mechanisms. Substitution of benzimidazole nucleus is a crucial step in the drug discovery process. Therefore, it is necessary to gather the latest information along with the earlier information to understand the present status of benzimidazole nucleus in drug discovery. In the present review, benzimidazole derivatives with different pharmacological activities are described on the basis of SAR study using structural substitution pattern around the benzimidazole nucleus and aims to review the reported work related to the chemistry and pharmacological activities of benzimidazole derivatives during recent years. The present manuscript to the best of our knowledge is the first compilation on synthesis and medicinal aspects including structure-activity relationships of benzimidazole reported to date.
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Affiliation(s)
- Geeta Yadav
- Department of Pharmaceutical Science and Technology, Birla Institute of Technology, Mesra, Ranchi 151001, India.
| | - Swastika Ganguly
- Department of Pharmaceutical Science and Technology, Birla Institute of Technology, Mesra, Ranchi 151001, India
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Manganese(II) and zinc(II) complexes of 4-phenyl(2-methoxybenzoyl)-3-thiosemicarbazide: Synthesis, spectral, structural characterization, thermal behavior and DFT study. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.02.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Ayhan-Kilcigil G, Kuş C, Çoban T, Özdamar ED, Can-Eke B. Identification of a Novel Series ofN-Phenyl-5-[(2-phenylbenzimidazol-1-yl)methyl]-1,3,4-oxadiazol-2-amines as Potent Antioxidants and Radical Scavengers. Arch Pharm (Weinheim) 2014; 347:276-82. [DOI: 10.1002/ardp.201300324] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Revised: 09/29/2013] [Accepted: 10/01/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Gulgun Ayhan-Kilcigil
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry; Ankara University; Ankara Turkey
| | - Canan Kuş
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry; Ankara University; Ankara Turkey
| | - Tülay Çoban
- Faculty of Pharmacy, Department of Toxicology; Ankara University; Ankara Turkey
| | - Elcin D. Özdamar
- Faculty of Pharmacy, Department of Toxicology; Ankara University; Ankara Turkey
| | - Benay Can-Eke
- Faculty of Pharmacy, Department of Toxicology; Ankara University; Ankara Turkey
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32
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Rashid M, Husain A, Mishra R. Synthesis of benzimidazoles bearing oxadiazole nucleus as anticancer agents. Eur J Med Chem 2012; 54:855-66. [DOI: 10.1016/j.ejmech.2012.04.027] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 04/15/2012] [Accepted: 04/18/2012] [Indexed: 11/29/2022]
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33
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Husain A, Rashid M, Mishra R, Parveen S, Shin DS, Kumar D. Benzimidazole bearing oxadiazole and triazolo-thiadiazoles nucleus: design and synthesis as anticancer agents. Bioorg Med Chem Lett 2012; 22:5438-44. [PMID: 22840417 DOI: 10.1016/j.bmcl.2012.07.038] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 05/24/2012] [Accepted: 07/10/2012] [Indexed: 10/28/2022]
Abstract
Two new series of benzimidazole bearing oxadiazole[1-(1H-benzo[d]imidazol-2-yl)-3-(5-substituted-1,3,4-oxadiazol-2-yl)propan-1-ones (4a-l)] and triazolo-thiadiazoles[1-(1H-benzo[d]imidazol-2-yl)-3-(6-(substituted)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl)propan-1-one (7a-e)] have been synthesized successfully from 4-(1H-benzo[d]imidazol-2-yl)-4-oxobutanehydrazide (3) with an aim to produce promising anticancer agents. In vitro anticancer activities of synthesized compounds were screened at the National Cancer Institute (NCI), USA, according to their applied protocol against full NCI 60 human cell lines panel; results showed good to remarkable anticancer activity. Among them, compound (4j, NCS: 761980) exhibited significant growth inhibition and further screened at 10-fold dilutions of five different concentrations (0.01, 0.1, 1, 10 and 100 μM) with GI(50) values ranging from 0.49 to 48.0 μM and found superior for the non-small cell lung cancer cell lines like HOP-92 (GI(50) 0.49, TGI 19.9,LC(50) >100 and Log(10)GI(50) -6.30, Log(10)TGI -4.70, Log(10)LC(50) >-4.00).
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Affiliation(s)
- Asif Husain
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, JamiaHamdard (Hamdard University), Hamdard Nagar, New Delhi 110062, India
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Husain A, Rashid M, Shaharyar M, Siddiqui AA, Mishra R. Benzimidazole clubbed with triazolo-thiadiazoles and triazolo-thiadiazines: new anticancer agents. Eur J Med Chem 2012; 62:785-98. [PMID: 23333063 DOI: 10.1016/j.ejmech.2012.07.011] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 07/02/2012] [Accepted: 07/05/2012] [Indexed: 11/16/2022]
Abstract
Two series of Benzimidazole clubbed with triazolo-thiadiazoles (5a-q, 5r, 5s and 5x-a(1)) and triazolo-thiadiazines (5t-w) were synthesized with an aim to produce promising anticancer agents. In vitro anticancer activities of synthesized compounds were investigated at the National Cancer Institute (NCI) against NCI 60 cell line panel; results showed good to remarkable broad-spectrum anticancer activity. Among them, the compound 5h (NCS: 760452, 1-(1H-benzo [d] imidazol-2-yl)-3-(6-(2,4-dichlorophenyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl) propan-1-one) exhibited significant growth inhibition with GI50 values ranging from 0.20 to 2.58 μM and found superior selectivity for the leukemia cell lines and further screened at 10-fold dilutions of five different concentrations (0.01, 0.1, 1, 10 and 100 μM). The 5h may possibly be used as lead compound for developing new anticancer agents.
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Affiliation(s)
- Asif Husain
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard (Hamdard University), Hamdard Nagar, New Delhi 110062, India.
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Kerimov İ, Ayhan-Kilcigil G, Özdamar ED, Can-Eke B, Çoban T, Özbey S, Kazak C. Design and one-pot and microwave-assisted synthesis of 2-amino/5-aryl-1,3,4-oxadiazoles bearing a benzimidazole moiety as antioxidants. Arch Pharm (Weinheim) 2012; 345:549-56. [PMID: 22467524 DOI: 10.1002/ardp.201100440] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 01/19/2012] [Accepted: 02/16/2012] [Indexed: 11/09/2022]
Abstract
In this study, two new series of 2-amino-1,3,4-oxadiazoles and 5-aryl-1,3,4-oxadiazoles carrying a benzimidazole moiety were synthesized. The antioxidant properties of these compounds were investigated in vitro by the determination of the microsomal NADPH-dependent inhibition of lipid peroxidation levels (LP), the microsomal ethoxyresorufin O-deethylase activity (EROD), and DPPH radical scavenger effects. Among the tested compounds, 2-[(2-(4-chlorophenyl)-1H-benzo[d]imidazole-1-yl)methyl]-5-(4-fluorophenyl)-1,3,4-oxadiazole (9) was found to be the most active compound in all three in vitro systems.
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Affiliation(s)
- İlgar Kerimov
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Ankara University, Ankara, Turkey
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36
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Ayhan-Kılcıgil G, Gürkan S, Coban T, Ozdamar ED, Can-Eke B. Synthesis and evaluation of antioxidant properties of novel 2-[2-(4-chlorophenyl) benzimidazole-1-yl]-N-(2-arylmethylene amino) acetamides and 2-[2-(4-chlorophenyl) benzimidazole-1-yl]-N-(4-oxo-2-aryl-thiazolidine-3-yl) acetamides-I. Chem Biol Drug Des 2012; 79:869-77. [PMID: 22284863 DOI: 10.1111/j.1747-0285.2012.01347.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Our approach was to synthesize and examine the antioxidant properties of some new 2-[2-(4-chlorophenyl)benzimidazole-1-yl]-N-(2-arylmethyleneamino) acetamide (1-18) and 2-[2-(4-chlorophenyl)benzimidazole-1-yl]-N-(4-oxo-2-aryl-thiazolidine-3-yl)acetamide (1t-18t) derivatives. Their in vitro effects on rat liver microsomal NADPH-dependent lipid peroxidation levels (LP assay) and microsomal ethoxyresorufin O-deethylase activities (EROD assay) were determined. The free radical scavenging properties of the compounds were also examined in vitro determining the interaction of 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical. The compounds showed significant effects in the above tests.
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Affiliation(s)
- Gülgün Ayhan-Kılcıgil
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ankara, Tandogan, Ankara, Turkey.
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Synthesis and biological evaluation of some novel 2-phenyl benzimidazole-1-acetamide derivatives as potential anthelmintic agents. ACTA PHARMACEUTICA 2011; 61:353-61. [PMID: 21945914 DOI: 10.2478/v10007-011-0029-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The present study describes synthesis of a series of 2-phenyl benzimidazole-1-acetamide derivatives and their evaluation for anthelmintic activity using Indian adult earthworms, Pheretima posthuma. The structure of the title compounds was elucidated by elemental analysis and spectral data. The compounds 4-({[2-(4-nitrophenyl)-1H-benzimidazol-1-yl]acetyl}amino) benzoic acid (3a), N-ethyl-2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl] acetamide (3c), N-benzyl-2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl] acetamide (3d), N-(4-hydroxyphenyl)-2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl] acetamide (3f), 2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl]-N-phenyl acetamide (3h), 2-[2-(4-chlorophenyl)-1H-benzimidazol-1-yl]-N'-phenylacetohydrazide (3k), 2-[2-(4-chlorophenyl)-1H-benzimidazol-1-yl]-N-(4-nitrophenyl) acetamide (3n) and 2-[2-(4-chlorophenyl)-1H-benzimidazol-1-yl]-N-phenyl acetamide (3q) were found better to paralyze worms whereas N-ethyl-2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl] acetamide (3c), N-(4-nitrophenyl)-2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl] acetamide (3e), 4-({[2-(4-chlorophenyl)-1H-benzimidazol-1-yl] acetyl}amino) benzoic acid (3j), 2-[2-(4-chlorophenyl)-1H-benzimidazol-1-yl]-N-ethyl acetamide (31) and 2-[2-(4-chlorophenyl)-1H-benzimidazol-1-yl]-N-phenyl acetamide (3q) were better to cause death of worms compared to the anthelmintic drug albendazole.
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Sharma D, Narasimhan B, Kumar P, Judge V, Narang R, De Clercq E, Balzarini J. Synthesis, antimicrobial and antiviral activity of substituted benzimidazoles. J Enzyme Inhib Med Chem 2010; 24:1161-8. [PMID: 19772489 DOI: 10.1080/14756360802694427] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
In the present study we have synthesized (4-nitrophenyl)-[2-(substituted phenyl)-benzoimidazol-1-yl]-methanones, (2-bromophenyl)-[2-(substituted phenyl)-benzoimidazol-1-yl]-methanone analogues (1-14) and evaluated them for their antimicrobial and antiviral potential. The results of antimicrobial screening indicated that none of the synthesized compounds were effective against the tested bacterial strains. Compounds 3, 11, 13 and compounds 5, 11, 12 were found to be active against Aspergillus niger and Candida albicans respectively, and may be further developed as antifungal agents. Furthermore, evaluation against a panel of different viruses pointed out the selective activity of compounds 5 and 6 against vaccinia virus and Coxsackie virus B4.
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Affiliation(s)
- Deepika Sharma
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar 125001, India
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Nisar M, Tariq SA, Marwat IK, Shah MR, Khan IA. Antibacterial, antifungal, insecticidal, cytotoxicity and phytotoxicity studies on Indigofera gerardiana. J Enzyme Inhib Med Chem 2009; 24:224-9. [PMID: 18825532 DOI: 10.1080/14756360802051313] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
The antibacterial, antifungal, acute cytotoxicity, phytotoxicity and insecticidal profile of the crude extract and various fractions of Indigofera gerardiana have been studied. Six bacterial and fungal strains were used, of which Samonella typhi and Microsporum canis were the most susceptible strains with MICs 0.37 mg/mL and 0.09 mg/mL, respectively. The crude extract and the fractions showed low insecticidal activity against Sitophilus oryzae, Rhyzopertha dominica and Callosbruchus analis but no activity against Tribolium castaneum. The brine shrimp lethality assay showed absence of any measurable cytotoxicity of the crude extract and fractions, showing a good safety profile at a preliminary level. All the fractions except crude extract revealed profound and highly significant herbicidal activity against Lemna minor at the concentration of 1000 microg/mL. Indigofera gerardiana was shown by in-vitro assays to be a potential source for natural antifungal, antibacterial and herbicidal agents.
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Affiliation(s)
- Muhammad Nisar
- Institute of Chemical Sciences, University of Peshawar, Peshawar-25120, NWFP, Pakistan.
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Mukhopadhyay C, Tapaswi PK. PEG-mediated catalyst-free expeditious synthesis of 2-substituted benzimidazoles and bis-benzimidazoles under solvent-less conditions. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.08.041] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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