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Gali S, Raghu D, Mallikanti V, Thumma V, Vaddiraju N. Design, synthesis of benzimidazole tethered 3,4-dihydro-2H-benzo[e] [1, 3] oxazines as anticancer agents. Mol Divers 2023:10.1007/s11030-023-10661-3. [PMID: 37233952 DOI: 10.1007/s11030-023-10661-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/17/2023] [Indexed: 05/27/2023]
Abstract
A series of novel 3-(1H-benzo[d]imidazol-2-yl)-3,4-dihydro-2H-benzo[e][1,3] oxazine analogues synthesized through a two-step synthetic protocol. The structure of the compounds were established by interpretation 1H NMR, 13C NMR and Mass spectral data recorded after purification. All the title compounds 4a-k were screened for their in vitro anti-cancer activity against two breast cancer cell lines MCF 7 and MDA-MB-231 by using Doxorubicin as standard reference. Compound 4e displayed superior activity against both the cell lines MCF-7 and MDA-MB-231 with IC50 values of 8.60 ± 0.75 and 6.30 ± 0.54 µM respectively, compared to the Doxorubicin IC50 value of 9.11 ± 0.54 and 8.47 ± 0.47 µM. Compound 4i also indicated good activity with IC50 value of 9.85 ± 0.69 μM on par with Doxorubicin against MCF-7 cells. Compound 4g demonstrated best activity on par with standard reference to IC50 value of 8.52 ± 0.62 μM against MDA-MB-231 cell line. And all other compounds demonstrated good to moderate activity compared to Doxorubicin. Docking studies against EGFR showed that all the compounds have very good binding affinities towards the target. The predicted drug-likeness properties of all compounds enable them to be used as therapeutic agents.
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Affiliation(s)
- Srinivas Gali
- Department of Chemistry, Satavahana University, Karimnagar, Telangana, 505001, India
- Department of Chemistry, SRR Government Arts and Science College, Karimnagar, Telangana, 505001, India
| | - D Raghu
- Department of Chemistry, Satavahana University, Karimnagar, Telangana, 505001, India
| | | | - Vishnu Thumma
- Department of Sciences and Humanities, Matrusri Engineering College, Hyderabad, Telangana, 500059, India
| | - Namratha Vaddiraju
- Department of Chemistry, Satavahana University, Karimnagar, Telangana, 505001, India.
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2
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Chedupaka R, Papisetti V, Sangolkar AA, Vedula RR. A Facile One-Pot Synthesis of Benzimidazole-Linked Pyrrole Structural Motifs via Multicomponent Approach: Design, Synthesis, and Molecular Docking Studies. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1995010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Raju Chedupaka
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, India
| | - Venkatesham Papisetti
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, India
| | | | - Rajeswar Rao Vedula
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, India
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3
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Wzgarda-Raj K, Książkiewicz O, Palusiak M. A rare case of a 2:2:1 ternary cocrystal of pyridine sulfides and trithiocyanuric acid. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2021; 77:479-484. [PMID: 34350845 DOI: 10.1107/s2053229621007208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/12/2021] [Indexed: 11/10/2022]
Abstract
We report a rare case of a 2:2:1 ternary cocrystal consisting of two trithiocyanuric acid molecules, two bis(pyridin-4-yl) sulfide molecules and 1,4-bis(pyridin-4-yl)tetrasulfane, namely, 1,3,5-triazinane-2,4,6-trithione-4-(pyridin-4-ylsulfanyl)pyridine-1,4-bis(pyridin-4-yl)tetrasulfane (2/2/1), 2C3H3N3S3·2C10H8N2S·C10H8N2S4. This interesting crystal structure with five neutral molecules per asymmetric unit was synthesized and characterized by means of X-ray diffraction (XRD) experiments and quantum-chemical modelling. Among various specific interactions, hydrogen and halogen bridges have a significant role in stabilizing the crystal structure. In particular, the role played by stacking interactions has been revealed by structure analysis and theoretical calculations. Crystallization was spontaneous and reproducible. One of the components, 1,4-bis(pyridin-4-yl)tetrasulfane, has been characterized by XRD for the first time.
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Affiliation(s)
- Kinga Wzgarda-Raj
- Department of Physical Chemistry, Faculty of Chemistry, University of Łodz, Pomorska 163/165, Łodz 90-236, Poland
| | - Olga Książkiewicz
- Department of Physical Chemistry, Faculty of Chemistry, University of Łodz, Pomorska 163/165, Łodz 90-236, Poland
| | - Marcin Palusiak
- Department of Physical Chemistry, Faculty of Chemistry, University of Łodz, Pomorska 163/165, Łodz 90-236, Poland
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4
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Rakib EM, Boga C, Calvaresi M, Chigr M, Franchi P, Gualandi I, Ihammi A, Lucarini M, Micheletti G, Spinelli D, Tonelli D. A multidisciplinary study of chemico-physical properties of different classes of 2-aryl-5(or 6)-nitrobenzimidazoles: NMR, electrochemical behavior, ESR, and DFT calculations. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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5
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Law CSW, Yeong KY. Benzimidazoles in Drug Discovery: A Patent Review. ChemMedChem 2021; 16:1861-1877. [PMID: 33646618 DOI: 10.1002/cmdc.202100004] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Indexed: 01/10/2023]
Abstract
Benzimidazole is a heterocyclic ring system that has been widely studied in the pharmaceutical field. For the past decade, numerous benzimidazole derivatives have been synthesized and evaluated for their wide range of pharmacological activities, which are beneficial for drug development. This article presents the biological effects of benzimidazole derivatives in each invention from 2015 to 2020. Two patent databases, Google Patents and Lens, were used to locate relevant granted patent applications. Specifically, this review delineates the role of patented benzimidazoles from a disease-centric perspective and examines the mechanisms of action of these compounds in related diseases. Most of the benzimidazoles have shown good activities against various target proteins. Whilst several of them have progressed into clinical trials, most patents presented novel therapeutic approaches for respective target diseases. Hence, their potential in being developed into clinical drugs are also discussed.
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Affiliation(s)
- Christine S W Law
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan Bandar Sunway, 47500, Selangor, Malaysia
| | - Keng Y Yeong
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan Bandar Sunway, 47500, Selangor, Malaysia.,Tropical Medicine and Biology (TMB) multidisciplinary platform, Monash University Malaysia, Jalan Lagoon Selatan Bandar Sunway, 47500, Selangor, Malaysia
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6
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Wzgarda-Raj K, Rybarczyk-Pirek AJ, Wojtulewski S, Palusiak M. Trithiocyanuric acid: novel cocrystals and analysis of its tautomeric forms. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2021; 77:49-55. [DOI: 10.1107/s2053229620016137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 12/11/2020] [Indexed: 11/10/2022]
Abstract
Cocrystals of trithiocyanuric acid with 2,2′-bipyridyl [1,3,5-triazinane-2,4,6-trithione–2,2′-bipyridine (2/1), 2C3H3N3S3·C10H8N2, (I)] and 4-methylbenzohydrazide [1,3,5-triazinane-2,4,6-trithione–4-methylbenzohydrazide (1/1), C8H10N2O·C3H3N3S3, (II)] crystallize in the monoclinic crystal system. In the crystals, molecules of both components are linked by hydrogen bonds. The trithiocyanuric acid molecules are connected by N—H...S hydrogen bonds forming R
2
2(8) synthons, which are further organized into chain motifs. Computations based on quantum chemistry methods have been performed for a more detailed description of the observed tautomerism of trithiocyanuric acid.
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7
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Isik E, Astley D, Yuksekdanaci S, Yasa I. Synthesis, Characterization and Antimicrobial Activity of Some Novel 1- substituted Benzimidazole Derivatives. LETT DRUG DES DISCOV 2020. [DOI: 10.2174/1570180817999200531164230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Benzimidazole derivatives are an important class of heterocyclic compounds
in organic chemistry as they are related to a wide range of biological properties, including
antimicrobial activity.
Methods:
A series of 1-naphthoyl and benzoyl benzimidazole derivatives were synthesised, identified
and screened for their antimicrobial activities against a number of different test organisms such
as Escherichia coli, Pseudomonas aureginosa, Klebsiella pneumoniae, Staphylococcus aureus, Enterococcus
faecalis, Bacillus cereus, Salmonella typhimurium, Candida albicans (yeast).
Results and Discussion:
Benzimidazole derivatives (3a-d) were synthesised by using 4 different
aminoacids. L-methionine, L-isoleucine, D-Phenylysine and L-Phenylamine as starting materials in
the study. Experimental studies involve the use of benzimidazole derivatives (3a-d) of the selected
amino acids to synthesize the benzoyl and naphthoyl derivatives of benzimidazole (4a-d, 5a-c). The
structures of the synthesized compounds were confirmed by spectroscopic analyses (FTIR, 1HNMR,
13C-NMR) and elemental analysis.
Conclusion:
In this study, only one compound (5a) showed a low MIC value against the eukaryotic
microorganism C. albicans. The other six compounds showed higher antimicrobial activities against
the prokaryotes C. albicans which is a normal flora in the mouth but is one of the organisms that
cause infections leading to the weakening of the human immune system. Compound 5a is a candidate
for future alternative antimicrobial drugs against C. albicans infections. In addition, compound
5a has a potential to be used as an inhibitor against P. aureginosa for the treatment of cystic
fibrosis.
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Affiliation(s)
- Erkut Isik
- Department of Chemistry, Science Faculty, Ege University, Izmir, Turkey
| | - Demet Astley
- Department of Chemistry, Science Faculty, Ege University, Izmir, Turkey
| | - Seda Yuksekdanaci
- Department of Chemistry, Science and Arts, Usak University, Usak, Turkey
| | - Ihsan Yasa
- Department of Biology, Science Faculty, Ege University, Izmir, Turkey
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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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9
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Abdel-Motaal M, Almohawes K, Tantawy MA. Antimicrobial evaluation and docking study of some new substituted benzimidazole-2yl derivatives. Bioorg Chem 2020; 101:103972. [PMID: 32506017 DOI: 10.1016/j.bioorg.2020.103972] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 04/11/2020] [Accepted: 05/23/2020] [Indexed: 12/25/2022]
Abstract
Benzimidazoles incorporated biologically active heterocycles such as quinoline, triazine-3-thione, thiazole and thiadiazole, were synthesized utilizing 2-acetylbenzimidazole as a building block. The structures of the newly synthesized benzimidazoles were assured by their spectral data (IR, 1H NMR, 13C- NMR and MS spectra). Most of the synthesized candidates were screened for their in vitro antimicrobial activity against Staphylococcus aureus, Escherichia coli, Bacillus pumilus and antifungal activity against (Saccharomyces cerevisiae). As a result, 2-(2-(1-(1H-benzo[d]imidazol-2-yl)ethylidene)hydrazineyl)-5-(furan-2-yl)-1,3,4-thiadiazole (14) had the most potent inhibitory activity against all tested bacteria with no antifungal inhibition. Furthermore, to gain insight into the mode of action of the synthesized compounds as antibacterial agents, docking studies were performed for the synthesized compounds in order to evaluate their activity as anti-bacterial agents. Virtual screening of the most promising compounds was performed against two bacterial proteins (DNA gyrase subunit B, and penicillin binding protein 1a) that are known targets for some antibiotics.
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Affiliation(s)
- Marwa Abdel-Motaal
- Chemistry Department, College of Science, Qassim University, Qassim, Buraydah, Saudi Arabia; Chemistry Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt.
| | - Khozama Almohawes
- Chemistry Department, College of Science, Qassim University, Qassim, Buraydah, Saudi Arabia
| | - Mohamed A Tantawy
- Hormones Department, Medical Research Division, National Research Centre, Dokki, Giza, 12622, Egypt; Stem Cells Lab, Center of Excellence for Advanced Sciences, National Research Centre, Dokki, Giza 12622, Egypt
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10
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Aroua LM. Novel Mixed Complexes Derived from Benzoimidazolphenylethanamine and
4-(Benzoimidazol-2-yl)aniline: Synthesis, Characterization, Antibacterial
Evaluation and Theoretical Prediction of Toxicity. ACTA ACUST UNITED AC 2020. [DOI: 10.14233/ajchem.2020.22472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Benzoimidazolphenylethanamine (BPE) has been synthesized using condensation reaction from
o-phenyldiamine and L-phenylalanine. Some metal complexes have been synthesized from
4-(benzoimidazol-2-yl)aniline, benzoimidazolylphenylethanamine and cadmium(II), tin(II), copper(II)
and nickel(II) metal in a molar ratio (1:1:1). All new metal complexes were characterized by
spectroscopic data of FTIR, UV-visible electronic absorption, X-ray powder diffraction and thermal
analysis. Spectra analysis of the mixed metal complexes showed the coordination of ligands to the
metal ions via nitrogen atoms. The XRD powder showed that metal complexes have a monoclinic
system. The preliminary tested in vitro antibacterial activities of Sn(II) complex was assayed against
four bacterial isolates namely Micrococcus luteus, Staphylococcus aureus as Gram-positive,
Pseudomonas aerugmosa and Escherichia coli.
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Affiliation(s)
- Lotfi M. Aroua
- 1Department of Chemistry, College of Science, Qassim University, Campus University, King Abdulaziz Road, P.O.Box: 6644, Buraydah, Qassim, Kingdom of Saudi Arabia 2Laboratory of Organic Structural Chemistry & Macromolecules, Department of Chemistry, Faculty of Sciences of Tunis, Tunis El-Manar University, El Manar I 2092, Tunis, Tunisia
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11
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An electrochemical study on the redox chemistry of cyclic benzimidazole derivatives with potent anticancer activity. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.11.198] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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12
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A simple and efficient synthesis of benzimidazoles containing piperazine or morpholine skeleton at C-6 position as glucosidase inhibitors with antioxidant activity. Bioorg Chem 2018; 76:468-477. [DOI: 10.1016/j.bioorg.2017.12.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/15/2017] [Accepted: 12/15/2017] [Indexed: 01/10/2023]
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13
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Ahmad F, Parveen M. Microwave-assisted expeditious approach towards benzimidazole acrylonitrile derivatives exploring a new silica supported SBPTS catalyst. NEW J CHEM 2018. [DOI: 10.1039/c8nj01436a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and eco-friendly synthesis of benzimidazole-acrylonitrile derivatives.
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Affiliation(s)
- Faheem Ahmad
- Department of Chemistry
- Aligarh Muslim University
- Aligarh
- India
- School of Chemical Engineering
| | - Mehtab Parveen
- Department of Chemistry
- Aligarh Muslim University
- Aligarh
- India
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14
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Akhtar W, Khan MF, Verma G, Shaquiquzzaman M, Rizvi MA, Mehdi SH, Akhter M, Alam MM. Therapeutic evolution of benzimidazole derivatives in the last quinquennial period. Eur J Med Chem 2016; 126:705-753. [PMID: 27951484 DOI: 10.1016/j.ejmech.2016.12.010] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/10/2016] [Accepted: 12/03/2016] [Indexed: 12/21/2022]
Abstract
Benzimidazole, a fused heterocycle bearing benzene and imidazole has gained considerable attention in the field of contemporary medicinal chemistry. The moiety is of substantial importance because of its wide array of pharmacological activities. This nitrogen containing heterocycle is a part of a number of therapeutically used agents. Moreover, a number of patents concerning this moiety in the last few years further highlight its worth. The present review covers the recent work published by scientists across the globe during last five years.
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Affiliation(s)
- Wasim Akhtar
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, New Delhi 110062, India
| | - Mohemmed Faraz Khan
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, New Delhi 110062, India
| | - Garima Verma
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, New Delhi 110062, India
| | - M Shaquiquzzaman
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, New Delhi 110062, India
| | - M A Rizvi
- Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Syed Hassan Mehdi
- Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Mymoona Akhter
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, New Delhi 110062, India
| | - M Mumtaz Alam
- Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, New Delhi 110062, India.
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15
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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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Strelciunaite V, Jonuskiene I, Anusevicius K, Tumosiene I, Siugzdaite J, Ramanauskaite I, Mickevicius V. Synthesis of Novel Benzimidazoles 2-Functionalized with Pyrrolidinone and γ-Amino Acid with a High Antibacterial Activity. HETEROCYCLES 2016. [DOI: 10.3987/com-15-13343] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Biological Activity and Molecular Structures of Bis(benzimidazole) and Trithiocyanurate Complexes. Molecules 2015; 20:10360-76. [PMID: 26053490 PMCID: PMC6272323 DOI: 10.3390/molecules200610360] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/22/2015] [Accepted: 05/29/2015] [Indexed: 11/17/2022] Open
Abstract
1-(1H-Benzimidazol-2-yl)-N-(1H-benzimidazol-2-ylmethyl)methanamine (abb) and 2-(1H-benzimidazol-2-ylmethylsulfanylmethyl)-1H-benzimidazole (tbb) have been prepared and characterized by elemental analysis. These bis(benzimidazoles) have been further used in combination with trithiocyanuric acid for the preparation of complexes. The crystal and molecular structures of two of them have been solved. Each nickel atom in the structure of trinuclear complex [Ni3(abb)3(H2O)3(μ-ttc)](ClO4)3·3H2O·EtOH (1), where ttcH3 = trithiocyanuric acid, is coordinated with three N atoms of abb, the N,S donor set of ttc anion and an oxygen of a water molecule. The crystal of [(tbbH2)(ttcH2)2(ttcH3)(H2O)] (2) is composed of a protonated bis(benzimidazole), two ttcH2 anions, ttcH3 and water. The structure is stabilized by a network of hydrogen bonds. These compounds were primarily synthesized for their potential antimicrobial activity and hence their possible use in the treatment of infections caused by bacteria or yeasts (fungi). The antimicrobial and antifungal activity of the prepared compounds have been evaluated on a wide spectrum of bacterial and yeast strains and clinical specimens isolated from patients with infectious wounds and the best antimicrobial properties were observed in strains after the use of ligand abb and complex 1, when at least 80% growth inhibition was achieved.
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18
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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: 192] [Impact Index Per Article: 19.2] [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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