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Latosińska JN, Latosińska M, Orzeszko A, Maurin JK. Synthesis and Crystal Structure of Adamantylated 4,5,6,7-Tetrahalogeno-1 H-benzimidazoles Novel Multi-Target Ligands (Potential CK2, M2 and SARS-CoV-2 Inhibitors); X-ray/DFT/QTAIM/Hirshfeld Surfaces/Molecular Docking Study. Molecules 2022; 28:molecules28010147. [PMID: 36615341 PMCID: PMC9822452 DOI: 10.3390/molecules28010147] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
A series of new congeners, 1-[2-(1-adamantyl)ethyl]-1H-benzimidazole (AB) and 1-[2-(1-adamantyl)ethyl]-4,5,6,7-tetrahalogeno-1H-benzimidazole (Hal=Cl, Br, I; tClAB, tBrAB, tIAB), have been synthesized and studied. These novel multi-target ligands combine a benzimidazole ring known to show antitumor activity and an adamantyl moiety showing anti-influenza activity. Their crystal structures were determined by X-ray, while intermolecular interactions were studied using topological Bader's Quantum Theory of Atoms in Molecules, Hirshfeld Surfaces, CLP and PIXEL approaches. The newly synthesized compounds crystallize within two different space groups, P-1 (AB and tIAB) and P21/c (tClAB and tBrAB). A number of intramolecular hydrogen bonds, C-H⋯Hal (Hal=Cl, Br, I), were found in all halogen-containing congeners studied, but the intermolecular C-H⋯N hydrogen bond was detected only in AB and tIAB, while C-Hal⋯π only in tClAB and tBrAB. The interplay between C-H⋯N and C-H⋯Hal hydrogen bonds and a shift from the strong (C-H⋯Cl) to the very weak (C-H⋯I) attractive interactions upon Hal exchange, supplemented with Hal⋯Hal overlapping, determines the differences in the symmetry of crystalline packing and is crucial from the biological point of view. The hypothesis about the potential dual inhibitor role of the newly synthesized congeners was verified using molecular docking and the congeners were found to be pharmaceutically attractive as Human Casein Kinase 2, CK2, inhibitors, Membrane Matrix 2 Protein, M2, blockers and Severe Acute Respiratory Syndrome Coronavirus 2, SARS-CoV-2, inhibitors. The addition of adamantyl moiety seems to broaden and modify the therapeutic indices of the 4,5,6,7-tetrahalogeno-1H-benzimidazoles.
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Affiliation(s)
- Jolanta Natalia Latosińska
- Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
- Correspondence: ; Tel.: +48-61-8295277
| | - Magdalena Latosińska
- Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
| | - Andrzej Orzeszko
- Institute of Chemistry, Warsaw University of Life Sciences, 159C Nowoursynowska St., 02-787 Warsaw, Poland
| | - Jan Krzysztof Maurin
- National Medicines Institute, Chełmska 30/34, 00-750 Warsaw, Poland
- National Centre for Nuclear Research, Andrzeja Sołtana 7, 05-400 Otwock-Świerk, Poland
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Bera SK, Bhanja R, Mal P. DDQ in mechanochemical C–N coupling reactions. Beilstein J Org Chem 2022; 18:639-646. [PMID: 35706992 PMCID: PMC9174842 DOI: 10.3762/bjoc.18.64] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/20/2022] [Indexed: 12/25/2022] Open
Abstract
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) is a commonly known oxidant. Herein, we report that DDQ can be used to synthesize 1,2-disubstituted benzimidazoles and quinazolin-4(3H)-ones via the intra- and intermolecular C–N coupling reaction under solvent-free mechanochemical (ball milling) conditions. In the presence of DDQ, the intramolecular C(sp2)–H amidation of N-(2-(arylideneamino)phenyl)-p-toluenesulfonamides leads to 1,2-disubstituted benzimidazoles and the one-pot coupling of 2-aminobenzamides with aryl/alkyl aldehydes resulted in substituted quinazolin-4(3H)-one derivatives in high yields.
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Affiliation(s)
- Shyamal Kanti Bera
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
| | - Rosalin Bhanja
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
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3
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Hernández-López H, Tejada-Rodríguez CJ, Leyva-Ramos S. A Panoramic Review of Benzimidazole Derivatives and Their Potential Biological Activity. Mini Rev Med Chem 2022; 22:1268-1280. [PMID: 34983345 DOI: 10.2174/1389557522666220104150051] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/12/2021] [Accepted: 11/10/2021] [Indexed: 11/22/2022]
Abstract
The therapeutic potential of the benzimidazole nucleus dates back to 1944, being and important heterocycle system due to its presence in a wide range of bioactive compounds such as antiviral, anticancer, antibacterial, and so on, where optimization of substituents in this class of pharmacophore has resulted in many drugs. Its extensive biological activity is due to its physicochemical properties like hydrogen bond donor-acceptor capability, π → π stacking interactions, coordination bonds with metals as ligands and hydrophobic interactions; properties that allow them to easily bind with a series of biomolecules, including enzymes and nucleic acids, causing a growing interest in these types of molecules. This review aims to present an overview to leading benzimidazole derivatives, as well as to show the importance of the nature and type of substituents at the N1, C2, and C5(6) positions, when they are biologically evaluated, which can lead to obtaining potent drug candidate with significant range of biological activities.
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Affiliation(s)
- Hiram Hernández-López
- Unidad Académica de Ciencias Químicas, Universidad Autónoma de Zacatecas, 98160, Zacatecas, Zac. México
| | | | - Socorro Leyva-Ramos
- Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, 78210, San Luis Potosí, SLP, México
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4
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Crystal Structure, Thermodynamic Properties and DFT Studies of 5,6-dimethyl-1H-benzo[d]imidazol-3-ium 3-((2,4-dioxo-1,5-dioxaspiro[5.5]undecan-3-ylidene)methyl) -2,4-dioxo-1,5-dioxaspiro[5.5]undecane Hydrate. CRYSTALS 2021. [DOI: 10.3390/cryst11111393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A new 1,5-dioxaspiro[5.5] derivative coupled with a benzimidazole moiety: 5,6-dimethyl-1H-benzo[d]imidazol-3-ium 3-((2,4-dioxo-1,5-dioxaspiro[5.5]undecan-3-ylidene) methyl) -2,4-dioxo-1,5-dioxaspiro[5.5]undecane hydrate (DBH) was prepared. The crystal structure confirmed that it belongs to triclinic, P-1 space group. The title compound includes one (C19H21O8)− anion, one (C9H11N2)+ cation and one water molecule, which assembled into a 2D-net framework by O–H···O and N–H···O hydrogen bonds. The quantum chemical computations using the B3LYP/6-311G (d, p) basis level of theory reveal that the optimized geometric structure is suitable to study the molecule. The theoretically simulated FT-IR spectra and electronic spectra of DBH are compared with experimental data. The results show that the B3LYP/6-311g (d, p) method fits well with the molecular structure. In addition, the thermodynamic properties have also been studied to determine the nature of the DBH.
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Mittersteiner M, Farias FFS, Bonacorso HG, Martins MAP, Zanatta N. Ultrasound-assisted synthesis of pyrimidines and their fused derivatives: A review. ULTRASONICS SONOCHEMISTRY 2021; 79:105683. [PMID: 34562732 PMCID: PMC8473776 DOI: 10.1016/j.ultsonch.2021.105683] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/12/2021] [Accepted: 07/20/2021] [Indexed: 06/09/2023]
Abstract
The pyrimidine scaffold is present in many bioactive drugs; therefore, efficient synthetic routes that provide shorter reaction times, higher yields, and site-selective reactions are constantly being sought. Ultrasound (US) irradiation has emerged as an alternative energy source in the synthesis of these heterocyclic scaffolds, and over the last ten years there has been a significant increase in the number of publications mentioning US in either the construction or derivatization of the pyrimidine core. This review presents a detailed summary (with 140 references) of the effects of US (synergic or not) on the construction and derivatization of the pyrimidine core through classical reactions (e.g., multicomponent, cyclocondensation, cycloaddition, and alkylation reactions). The main points that were taken into consideration are as follows: chemo- and regioselectivity issues, and the results of conventional heating methods compared to US and mechanistic insights that are also presented and discussed for key reactions.
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Affiliation(s)
- Mateus Mittersteiner
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil.
| | - Fellipe F S Farias
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil
| | - Helio G Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil
| | - Marcos A P Martins
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil
| | - Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil.
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Moussa A, Rahmati A. One-Pot Synthesis of Benzo[4,5]imidazo[1,2-a]pyrimidin-2-ones Using a Hybrid Catalyst Supported on Magnetic Nanoparticles in Green Solvents. ChemistryOpen 2021; 10:764-774. [PMID: 34351084 PMCID: PMC8340068 DOI: 10.1002/open.202100063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/09/2021] [Indexed: 01/11/2023] Open
Abstract
The conversion of soluble polyoxometalate into insoluble polyoxometalate is considered to be one of the major challenges in synthetic organic chemistry. Here, polyoxometalate was bonded to the salt part of an organic branch immobilized on the silica-coated Fe3 O4 nanoparticle and characterized using various techniques. The fabricated complex was used as a heterogeneous catalyst in a novel one-pot reaction for synthesis of benzo[4,5]imidazo[1,2-a]pyrimidin-2-ones using aromatic amines, dimethyl acetylenedicarboxylate (DMAD), derivatives of benzaldehyde and 2-aminobenzimidazole in water/ethanol as a green solvent. 21 derivatives of benzo[4,5]imidazo[1,2-a]pyrimidin-2-one were synthesized by this method and fully characterized. The high stability of the catalyst showed that it can be reused for 6 times without decreasing in activity. The combination of new synthetic method, new ferromagnetic heterogeneous nano-catalyst, green solvent and simple separation method were presented in this work.
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Affiliation(s)
| | - Abbas Rahmati
- Department of ChemistryUniversity of IsfahanP. O. Box81746-73441IsfahanIran
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Veerasamy R, Roy A, Karunakaran R, Rajak H. Structure-Activity Relationship Analysis of Benzimidazoles as Emerging Anti-Inflammatory Agents: An Overview. Pharmaceuticals (Basel) 2021; 14:ph14070663. [PMID: 34358089 PMCID: PMC8308831 DOI: 10.3390/ph14070663] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 11/16/2022] Open
Abstract
A significant number of the anti-inflammatory drugs currently in use are becoming obsolete. These are exceptionally hazardous for long-term use because of their possible unfavourable impacts. Subsequently, in the ebb-and-flow decade, analysts and researchers are engaged in developing new anti-inflammatory drugs, and many such agents are in the later phases of clinical trials. Molecules with heterocyclic nuclei are similar to various natural antecedents, thus acquiring immense consideration from scientific experts and researchers. The arguably most adaptable heterocyclic cores are benzimidazoles containing nitrogen in a bicyclic scaffold. Numerous benzimidazole drugs are broadly used in the treatment of numerous diseases, showing promising therapeutic potential. Benzimidazole derivatives exert anti-inflammatory effects mainly by interacting with transient receptor potential vanilloid-1, cannabinoid receptors, bradykinin receptors, specific cytokines, 5-lipoxygenase activating protein and cyclooxygenase. Literature on structure–activity relationship (SAR) and investigations of benzimidazoles highlight that the substituent’s tendency and position on the benzimidazole ring significantly contribute to the anti-inflammatory activity. Reported SAR analyses indicate that substitution at the N1, C2, C5 and C6 positions of the benzimidazole scaffold greatly influence the anti-inflammatory activity. For example, benzimidazole substituted with anacardic acid on C2 inhibits COX-2, and 5-carboxamide or sulfamoyl or sulfonyl benzimidazole antagonises the cannabinoid receptor, whereas the C2 diarylamine and C3 carboxamide substitution of the benzimidazole scaffold result in antagonism of the bradykinin receptor. In this review, we examine the insights regarding the SARs of anti-inflammatory benzimidazole compounds, which will be helpful for researchers in designing and developing potential anti-inflammatory drugs to target inflammation-promoting enzymes.
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Affiliation(s)
- Ravichandran Veerasamy
- Pharmaceutical Chemistry Unit, Faculty of Pharmacy, AIMST University, Semeling 08100, Kedah, Malaysia
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, Tamil Nadu, India
- Correspondence:
| | - Anitha Roy
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, Tamil Nadu, India;
| | | | - Harish Rajak
- SLT Institute of Pharmaceutical Sciences, Guru Ghasidas University, Bilaspur 495009, India;
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8
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Teixeira DF, Santos AM, Oliveira AMS, Nascimento Júnior JAC, Frank LA, Santana Souza MTD, Camargo EA, Serafini MR. Pharmaceuticals agents for preventing NSAID-induced gastric ulcers: a patent review. Expert Rev Clin Pharmacol 2021; 14:677-686. [PMID: 33843400 DOI: 10.1080/17512433.2021.1909475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Nonsteroidal anti-inflammatory drugs (NSAIDs) are a class of drugs widely used due to their pharmacological potential, demonstrating anti-inflammatory, analgesic, or antipyretic activity. However, prolonged use of these medications can lead to the development of gastric ulcers in patients. This review aimed to find patents for drugs with an anti-inflammatory and gastroprotective character to treat NSAID-induced gastric ulcers. AREAS COVERED For the treatment of NSAID-induced gastric ulcers, formulations with different action mechanisms were found, including donors of nitric oxide, heterocyclic compounds, and natural products. EXPERT OPINION Many of the structures found have already been used in clinic settings and others, and according to the results found, they are promising for the treatment of gastric ulcers.
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Affiliation(s)
| | | | | | | | - Luiza Abrahão Frank
- College of Pharmacy, Department of Pharmacy, Federal University of Rio Grande Do Sul, Porto Alegre, Rio Grande Do Sul, Brazil.,Escola De Saúde E Bem Estar UniRitter; Faculdade De Farmácia Laureate International Universities; Porto Alegre; Brazil
| | | | | | - Mairim Russo Serafini
- Federal University of Sergipe, Department of Pharmacy, São Cristovão, Sergipe, Brazil
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Patel JJ, Patel AP, Chikhalia KH. An efficient Pd-catalyzed intramolecular cyclization reaction followed by formation of benzimidazole derivatives: Synthesis of novel quinolin-fused benzo[d] azeto[1,2-a]benzimidazole analogues. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2020.1819325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Janki J. Patel
- Department of Chemistry, Veer Narmad South Gujarat University, Surat, India
| | - Anuj P. Patel
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
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Djuidje EN, Durini E, Sciabica S, Serra E, Balzarini J, Liekens S, Manfredini S, Vertuani S, Baldisserotto A. Skin Damages-Structure Activity Relationship of Benzimidazole Derivatives Bearing a 5-Membered Ring System. Molecules 2020; 25:molecules25184324. [PMID: 32967192 PMCID: PMC7570844 DOI: 10.3390/molecules25184324] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/15/2020] [Accepted: 09/17/2020] [Indexed: 11/16/2022] Open
Abstract
In the search for scaffolds for multifunctional compounds we investigated the structure activity relationship of a class of benzimidazole derivatives bearing 5-membered ring. The newly synthesized and the already known compounds were divided into three classes that present different substituent at 5 position of the benzimidazole ring (-H, -COOH or –SO3H) and different heterocycle at position 2 (thiophene, furan or pyrrole). All the derivatives were synthesized and tested to determine their photoprotective profile against UV rays, in vitro antioxidant capacity against different radicals (DPPH and FRAP test), antifungal inhibitory activity (dermatophytes and Candida albicans), antiviral and antiproliferative activity. A Structure-Activity Relationship study indicated compound 10, bearing a pyrrole heterocycle on the benzimidazole ring, as the best multifunctional derivative of the series and as potential candidate for the development of drugs especially in case of melanoma.
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Affiliation(s)
- Ernestine Nicaise Djuidje
- Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technologies, University of Ferrara, 44121 Ferrara, Italy; (E.N.D.); (E.D.); (S.M.); (S.V.)
| | - Elisa Durini
- Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technologies, University of Ferrara, 44121 Ferrara, Italy; (E.N.D.); (E.D.); (S.M.); (S.V.)
| | - Sabrina Sciabica
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, 44121 Ferrara, Italy;
| | - Elena Serra
- Aptuit, An Evotec Company, 37135 Verona, Italy;
| | - Jan Balzarini
- Department of Microbiology and Immunology, KU Leuven, University of Leuven, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, B-3000 Leuven, Belgium; (J.B.); (S.L.)
| | - Sandra Liekens
- Department of Microbiology and Immunology, KU Leuven, University of Leuven, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, B-3000 Leuven, Belgium; (J.B.); (S.L.)
| | - Stefano Manfredini
- Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technologies, University of Ferrara, 44121 Ferrara, Italy; (E.N.D.); (E.D.); (S.M.); (S.V.)
| | - Silvia Vertuani
- Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technologies, University of Ferrara, 44121 Ferrara, Italy; (E.N.D.); (E.D.); (S.M.); (S.V.)
| | - Anna Baldisserotto
- Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technologies, University of Ferrara, 44121 Ferrara, Italy; (E.N.D.); (E.D.); (S.M.); (S.V.)
- Correspondence: ; Tel.: +39-0532-455258
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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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Pharmacological significance of heterocyclic 1 H-benzimidazole scaffolds: a review. BMC Chem 2019; 13:101. [PMID: 31410412 PMCID: PMC6685272 DOI: 10.1186/s13065-019-0625-4] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 07/31/2019] [Indexed: 11/19/2022] Open
Abstract
Heterocyclic compounds are inevitable in a numerous part of life sciences. These molecules perform various noteworthy functions in nature, medication and innovation. Nitrogen-containing heterocycles exceptionally azoles family are the matter of interest in synthesis attributable to the way that they happen pervasively in pharmacologically dynamic natural products, multipurpose arranged useful materials also profoundly powerful pharmaceuticals and agrochemicals. Benzimidazole moiety is the key building block for several heterocyclic scaffolds that play central role in the biologically functioning of essential molecules. They are considered as promising class of bioactive scaffolds encompassing diverse varieties of activities like antiprotozoal, antihelminthic, antimalarial, antiviral, anti-inflammatory, antimicrobial, anti-mycobacterial and antiparasitic. Therefore in the present review we tried to compile the various pharmacological activities of different derivatives of heterocyclic benzimidazole moiety.![]()
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Li WW, Zheng H. A Highly Efficient Synthesis of 2-Benzimidazolthiones and Their Congeners under Mild Conditions. ORG PREP PROCED INT 2019. [DOI: 10.1080/00304948.2019.1581717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Wei-wei Li
- Linjiang College, Hangzhou Vocational and Technical College, Hangzhou 310018, China
| | - Hui Zheng
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310016, China
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Turan N, Özkay ÜD, Can NÖ, Can ÖD. Investigating the Antidepressant-like Effects of some Benzimidazolepiperidine Derivatives by In-Vivo Experimental Methods. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180815666181004103112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Background: Benzimidazole and piperidine rings are important pharmacophore groups
for drug design studies.
</P><P>
Objective: In this study, we aimed to investigate the antidepressant-like activity of some 2-(4-
substituted-phenyl)-1-[2-(piperidin-1-yl)ethyl]-1H-benzimidazole derivatives.
</P><P>
Methods: Tail-suspension Test (TST) and Modified Forced Swimming Tests (MFST) were used to
assess antidepressant-like activities of the test compounds. Moreover, locomotor activity performances
of the animals were evaluated by an activity cage device.
</P><P>
Results: In the TST and MFST, compounds 2c-2h (10 mg/kg) and the reference drug fluoxetine (20
mg/kg) significantly reduced the immobility time of mice indicating the antidepressant-like activities
of these compounds. Further, in MFST, the same compounds induced significant enhancement
in the duration of active swimming behaviors without affecting the climbing performance of the
animals. This prolongation in the swimming time, similar to fluoxetine, pointed out that antidepressant-
like activity of the compounds 2c-2h might be related to the serotonergic rather than noradrenergic
mechanisms. Besides, results of the activity cage tests demonstrated that none of the tested
compounds caused an alteration in the locomotor activities of mice, signifying that antidepressantlike
effects presented in this study were specific.
</P><P>
Conclusion: In conclusion, results of this present study supported the previous papers reporting the
therapeutic potential of compounds carrying benzimidazole and/or piperidine rings in their structure
and emphasized, once again, the importance of these pharmacophore groups in drug design studies.
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Affiliation(s)
- Nazlı Turan
- Department of Pharmacology, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
| | - Ümide Demir Özkay
- Department of Pharmacology, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
| | - Nafiz Öncü Can
- Department of Analytical Chemistry, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
| | - Özgür Devrim Can
- Department of Pharmacology, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
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15
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Zhilitskaya LV, Shagun LG, Dorofeev IA, Yarosh NO, Larina LI. Reaction of Imidazoles and Triazoles with 1-(Benzotriazol-1-yl)-2-iodoethanone. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1070428018100159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Alam MT, Maiti S, Mal P. An Intramolecular C(sp2
)-H Amidation Using N
-Iodosuccinimide. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800688] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Md Toufique Alam
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Homi Bhabha National Institute (HBNI); 752050 Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni Khurda District Odisha India
| | - Saikat Maiti
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Homi Bhabha National Institute (HBNI); 752050 Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni Khurda District Odisha India
| | - Prasenjit Mal
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Homi Bhabha National Institute (HBNI); 752050 Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni Khurda District Odisha India
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Mahire VN, Patil GP, Deore AB, Chavan PG, Jirimali HD, Mahulikar PP. Sulfonated chitosan-encapsulated HAp@Fe3O4: an efficient and recyclable magnetic nanocatalyst for rapid eco-friendly synthesis of 2-amino-4-substituted-1,4-dihydrobenzo[4, 5]imidazo[1,2-a]pyrimidine-3-carbonitriles. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3456-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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18
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Conventional and microwave-assisted synthesis of new indole-tethered benzimidazole-based 1,2,3-triazoles and evaluation of their antimycobacterial, antioxidant and antimicrobial activities. Mol Divers 2018; 22:769-778. [DOI: 10.1007/s11030-018-9828-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 04/08/2018] [Indexed: 10/17/2022]
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19
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El Bakri Y, Anouar EH, Ramli Y, Essassi EM, Mague JT. Synthesis, crystal structure, spectroscopic characterization, Hirshfeld surface analysis, and DFT calculations of 1,4-dimethyl-2-oxo-pyrimido[1,2-a]benzimidazole hydrate. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Murthy PK, Smitha M, Sheena Mary Y, Armaković S, Armaković SJ, Rao RS, Suchetan P, Giri L, Pavithran R, Van Alsenoy C. Supramolecular architecture of 5-bromo-7-methoxy-1-methyl-1 H -benzoimidazole.3H 2 O: Synthesis, spectroscopic investigations, DFT computation, MD simulations and docking studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.08.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Shih TC, Liu R, Fung G, Bhardwaj G, Ghosh PM, Lam KS. A Novel Galectin-1 Inhibitor Discovered through One-Bead Two-Compound Library Potentiates the Antitumor Effects of Paclitaxel in vivo. Mol Cancer Ther 2017; 16:1212-1223. [PMID: 28396365 DOI: 10.1158/1535-7163.mct-16-0690] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/16/2016] [Accepted: 04/03/2017] [Indexed: 01/03/2023]
Abstract
Through the one-bead two-compound (OB2C) ultra-high-throughput screening method, we discovered a new small-molecule compound LLS2 that can kill a variety of cancer cells. Pull-down assay and LC/MS-MS indicated that galectin-1 is the target protein of LLS2. Galectin-1 is known to be involved in the regulation of proliferation, apoptosis, cell cycle, and angiogenesis. Binding of LLS2 to galectin-1 decreased membrane-associated H-Ras and K-Ras and contributed to the suppression of pErk pathway. Importantly, combination of LLS2 with paclitaxel (a very important clinical chemotherapeutic agent) was found to exhibit synergistic activity against several human cancer cell lines (ovarian cancer, pancreatic cancer, and breast cancer cells) in vitro Furthermore, in vivo therapeutic study indicated that combination treatment with paclitaxel and LLS2 significantly inhibits the growth of ovarian cancer xenografts in athymic mice. Our results presented here indicate that the OB2C combinatorial technology is a highly efficient drug screening platform, and LLS2 discovered through this method can be further optimized for anticancer drug development. Mol Cancer Ther; 16(7); 1212-23. ©2017 AACR.
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Affiliation(s)
- Tsung-Chieh Shih
- Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, California
| | - Ruiwu Liu
- Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, California.
| | - Gabriel Fung
- Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, California
| | - Gaurav Bhardwaj
- Department of Biochemistry, University of Washington, Seattle, Washington
| | - Paramita M Ghosh
- Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, California.,Department of Urology, University of California Davis, Sacramento, California.,VA Northern California Health Care System, Sacramento, California
| | - Kit S Lam
- Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, California.
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22
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Survase D, Bandgar B, Helavi V. Polyethylene glycol-promoted synthesis of pyrimido[1,2-a]benzimidazole and pyrano[2,3-c]pyrazole derivatives in water. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1278774] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Dattatray Survase
- Organic Chemistry Research Laboratory, Department of Chemistry, Rajaram College, Kolhapur, Maharashtra, India
| | - Babasaheb Bandgar
- School of Chemical Science, Solapur University, Solapur, Maharashtra, India
| | - Vasant Helavi
- Organic Chemistry Research Laboratory, Department of Chemistry, Rajaram College, Kolhapur, Maharashtra, India
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23
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Banerjee B. Recent developments on ultrasound-assisted one-pot multicomponent synthesis of biologically relevant heterocycles. ULTRASONICS SONOCHEMISTRY 2017; 35:15-35. [PMID: 27771265 DOI: 10.1016/j.ultsonch.2016.10.010] [Citation(s) in RCA: 135] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 09/24/2016] [Accepted: 10/13/2016] [Indexed: 05/04/2023]
Abstract
Heterocycles are the backbone of organic compounds. Specially, N- &O-containing heterocycles represent privileged structural subunits well distributed in naturally occurring compounds with immense biological activities. Multicomponent reactions (MCRs) are becoming valuable tool for synthesizing structurally diverse molecular entities. On the other hand, the last decade has seen a tremendous outburst in modifying chemical processes to make them sustainable for the betterment of our environment. The application of ultrasound in organic synthesis is fulfilling some of the goals of 'green and sustainable chemistry' as it has some advantages over the traditional thermal methods in terms of reaction rates, yields, purity of the products, product selectivity, etc. Therefore the synthesis of biologically relevant heterocycles using one-pot multi-component technique coupled with the application of ultrasound is one of the thrusting areas in the 21st Century among the organic chemists. The present review deals with the "up to date" developments on ultrasound assisted one-pot multi-component synthesis of biologically relevant heterocycles reported so far.
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Affiliation(s)
- Bubun Banerjee
- Department of Chemistry, Indus International University, V.P.O. Bathu, Distt. Una, Himachal Pradesh 174301, India.
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24
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Synthesis and evaluation of anti-inflammatory, antioxidant and antimicrobial activities of densely functionalized novel benzo [ d ] imidazolyl tetrahydropyridine carboxylates. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.02.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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25
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Banerjee B. Recent Developments on Ultrasound-Assisted Synthesis of Bioactive N-Heterocycles at Ambient Temperature. Aust J Chem 2017. [DOI: 10.1071/ch17080] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
N-Heterocycles represent privileged structural subunits well distributed in naturally occurring compounds with immense biological activities. The last decade has seen a tremendous practice to carry out reactions at ambient temperature avoiding harsh reaction conditions. By applying ultrasonic radiation in organic synthesis we can make synthetic protocols more sustainable and can carry out reactions at room temperature avoiding the traditional thermal harsh reaction conditions. Therefore the synthesis of biologically relevant N-heterocycles at room temperature under the influence of ultrasonic irradiation is one of the advancing areas in the 21st century among organic chemists. The present review summarises the latest developments on ultrasound-assisted synthesis of biologically relevant N-heterocycles at ambient temperature.
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26
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Voskoboynik OY, Kolomoets OS, Berest GG, Nosulenko IS, Martynenko YV, Kovalenko SI. Preparation and biological properties of 2-thio-containing pyrimidines and their condensed analogs. Chem Heterocycl Compd (N Y) 2017; 53:256-272. [PMID: 32214419 PMCID: PMC7088342 DOI: 10.1007/s10593-017-2048-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 03/15/2017] [Indexed: 12/01/2022]
Abstract
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The known methods for synthesis of thioxopyrimidines and their condensed analogs with exocyclic sulfur atom are summarized and discussed. The most popular approaches are based on [3+3], [4+2], [5+1] cyclization processes or domino reactions. The literature data analysis shows that the title compounds possess diverse biological activities, such as antioxidant, radioprotective, analgesic, antiinflammatory, antihypertensive, anxiolytic, anamnestic, anticonvulsant, antimicrobial, fungicidal, herbicidal, antiviral, and anticancer.
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Affiliation(s)
| | | | - Galyna G Berest
- Zaporizhzhia State Medical University, 26 Mayakovsky Ave, Zaporizhzhia, 69035 Ukraine
| | - Inna S Nosulenko
- Zaporizhzhia State Medical University, 26 Mayakovsky Ave, Zaporizhzhia, 69035 Ukraine
| | - Yuliya V Martynenko
- Zaporizhzhia State Medical University, 26 Mayakovsky Ave, Zaporizhzhia, 69035 Ukraine
| | - Sergiy I Kovalenko
- Zaporizhzhia State Medical University, 26 Mayakovsky Ave, Zaporizhzhia, 69035 Ukraine
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27
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Koner A, Serin SC, Schnakenburg G, Patrick BO, Gates DP, Streubel R. Exploring the chemistry of backbone amino(chloro)phosphanyl-substituted imidazole-2-thiones. Dalton Trans 2017; 46:10504-10514. [DOI: 10.1039/c7dt01859b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Backbone amino(chloro)phosphanyl-substituted imidazole-2-thiones were synthesized and their potential as starting material for backbone phosphaalkenyl substituted imidazole-2-thiones studied.
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Affiliation(s)
- Abhishek Koner
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn
- D-53121 Bonn
- Germany
| | - Spencer C. Serin
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Gregor Schnakenburg
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn
- D-53121 Bonn
- Germany
| | - Brian O. Patrick
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Derek P. Gates
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Rainer Streubel
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn
- D-53121 Bonn
- Germany
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28
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Chhajed SS, Upasani CD. Synthesis and in-silico molecular docking simulation of 3-chloro-4-substituted-1-(2-(1H-benzimidazol-2-yl)phenyl))-azetidin-2-ones as novel analgesic anti-inflammatory agent. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2012.04.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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29
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Chhajed SS, Sonawane SS, Upasani CD, Kshirsagar SJ, Gupta PP. Design, synthesis and molecular modeling studies of few chalcone analogues of benzimidazole for epidermal growth factor receptor inhibitor in search of useful anticancer agent. Comput Biol Chem 2016; 61:138-44. [DOI: 10.1016/j.compbiolchem.2016.02.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 02/01/2016] [Indexed: 11/26/2022]
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30
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Patil DA, Surana SJ. Synthesis, biological evaluation of 2,3-disubstituted-imidazolyl/benzimidazolyl-quinazolin-4(3H)-one derivatives. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1552-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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31
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Chen LH, Chung TW, Narhe BD, Sun CM. A Novel Mechanistic Study on Ultrasound-Assisted, One-Pot Synthesis of Functionalized Benzimidazo[2,1-b]quinazolin-1(1H)-ones. ACS COMBINATORIAL SCIENCE 2016; 18:162-9. [PMID: 26871300 DOI: 10.1021/acscombsci.5b00186] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ultrasound-assisted synthesis of benzimidazo[2,1-b]quinazolin-1(1H)-ones was achieved via piperidine-catalyzed three-component reaction of 2-aminobenzimidazoles, an aromatic aldehyde, and 1,3-dione in aqueous isopropanol. This mechanism was first suspected following our identification of unusual reaction intermediates in a one-pot reaction. An unprecedented coupling reaction, it involved a nucleophilic attack by 2-aminobenzimidazole on in situ generated Michael adduct, followed by electrocyclic ring formation reaction. In contrast to the commonly accepted mechanism, that the direct reaction of 2-amino benzimidazole with a Knoevenagel adduct cannot deliver target compounds.
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Affiliation(s)
- Li-Hsun Chen
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Tsai-Wen Chung
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Bharat D. Narhe
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100,
Shih-Chuan first Road, Kaohsiung 807-08, Taiwan
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32
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Eco-friendly strategy: design and synthesis of biologically potent benzimidazole–amine hybrids via visible-light generated oxidative C–H arylamylation of analenic amidines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.10.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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33
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El-wakiel N, El-keiy M, Gaber M. Synthesis, spectral, antitumor, antioxidant and antimicrobial studies on Cu(II), Ni(II) and Co(II) complexes of 4-[(1H-Benzoimidazol-2-ylimino)-methyl]-benzene-1,3-diol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 147:117-123. [PMID: 25827773 DOI: 10.1016/j.saa.2015.03.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 02/08/2015] [Accepted: 03/01/2015] [Indexed: 06/04/2023]
Abstract
A new Schiff base of 2-aminobenzimidazole with 2,4-dihydroybezaldehyde (H₃L), and its Cu(II), Ni(II) and Co(II) complexes have been synthesized and characterized by elemental analyses, molar conductance, thermal analysis (TGA), inductive coupled plasma (ICP), magnetic moment measurements, IR, EI-mass, UV-Vis. and ESR spectral studies. On the basis of spectral studies and analytical data, it is evident that the Schiff base acts as dibasic tridentate ligand coordinating via deprotonated OH, NH and azomethine nitrogen atom. The results showed that Co(II) and Ni(II) complexes have tetrahedral structure while Cu(II) complexes has octahedral geometry. The kinetic and thermodynamic parameters of the thermal decomposition stages have been evaluated. The studied complexes were tested for their in vitro antimicrobial activities against some bacterial strains. The anticancer activity of the ligand and its metal complexes is evaluated against human liver Carcinoma (HEPG2) cell. These compounds exhibited a moderate and weak activity against the tested HEPG2 cell lines with IC₅₀ of 9.08, 18.2 and 19.7 μg/ml for ligand, Cu(II) and Ni(II) complexes, respectively. In vitro antioxidant activity of the newly synthesized compounds has also been evaluated.
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Affiliation(s)
- Nadia El-wakiel
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt.
| | - Mai El-keiy
- Division of Biochemistry, Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Mohamed Gaber
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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34
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Elshakre ME, Moustafa H, Hassaneen HME, Moussa AZ. Electronic spectra and DFT calculations of some pyrimido[1,2-a]benzimidazole derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 145:1-14. [PMID: 25754524 DOI: 10.1016/j.saa.2015.02.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/19/2015] [Accepted: 02/22/2015] [Indexed: 06/04/2023]
Abstract
Ground state properties of 2,4-diphenyl-1,4-dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine, compound 1, and its derivatives are investigated experimentally and theoretically in Dioxane and DMF. The calculations show that all the studied compounds (1-7) are non-planar, resulting in a significant impact on the electronic and structural properties. The ground state properties of compounds 1-7 at B3LYP/6-311G (d, p) show that compound 5 has the lowest EHOMO, ELUMO, and ΔE indicating highest reactivity. Compound 7 is found to have the highest polarity. The observed UV spectra in Dioxane and DMF of compounds 1-4 show 2 bands, while compounds 5-7 show 4 bands in both solvents. Band maxima (λmax) and intensities of the spectra are found to have solvent dependence reflected as blue and red shifts. The theoretical spectra computed at TD-B3LYP/6-311G (d, p) in gas phase, Dioxane and DMF indicate a good agreement with the observed spectra.
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Affiliation(s)
- Mohamed E Elshakre
- Chemistry Department, College of Science, Cairo University, University Ave., Dokki, 12613 Cairo, Egypt
| | - H Moustafa
- Chemistry Department, College of Science, Cairo University, University Ave., Dokki, 12613 Cairo, Egypt.
| | - Huwaida M E Hassaneen
- Chemistry Department, College of Science, Cairo University, University Ave., Dokki, 12613 Cairo, Egypt
| | - Abdelrahim Z Moussa
- Chemistry Department, College of Science, Cairo University, University Ave., Dokki, 12613 Cairo, Egypt
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35
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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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36
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Özdemir (nee Güngör) Ö, Gürkan P, Sarı M, Tunç T. Synthesis of monosodium salts of N-(5-nitro-salicylidene)-D-amino acid Schiff bases and their iron(III) complexes: spectral and physical characterizations, antioxidant activities. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1043908] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - Perihan Gürkan
- Faculty of Science, Department of Chemistry, Gazi University, Ankara, Turkey
| | - Musa Sarı
- Faculty of Education, Department of Physics Education, Gazi University, Ankara, Turkey
| | - Tuncay Tunç
- Department of Science Education, Science and Technology Application and Research Center, Aksaray University, Aksaray, Turkey
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37
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Maiti S, Mal P. Phenyliodine Diacetate-Mediated Intramolecular C(sp2)H Amidation for 1,2-Disubstituted Benzimidazole Synthesis under Metal-Free Conditions. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201401110] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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38
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Wu H, Peng H, Zhang Y, Wang F, Zhang H, Wang C, Yang Z. Synthesis, crystal structure, electrochemistry and antioxidative activity of copper(II), manganese(II) and nickel(II) complexes containing bis(N
-ethylbenzimidazol-2-ylmethyl)aniline. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3313] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Huilu Wu
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 PR China
| | - Hongping Peng
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 PR China
| | - Yanhui Zhang
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 PR China
| | - Fei Wang
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 PR China
| | - Han Zhang
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 PR China
| | - Cuiping Wang
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 PR China
| | - Zaihui Yang
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 PR China
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39
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Wu H, Zhang H, Wang F, Peng H, Cui Y, Li Y, Zhang Y. Zinc(II) and Co(II) Complexes based on Bis(N-allylbenzimidazol-2-ylmethyl) Aniline: Synthesis, Crystal Structures and Antioxidative Activity. JOURNAL OF CHEMICAL RESEARCH 2015. [DOI: 10.3184/174751915x14210834541638] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Bis(N-allylbenzimidazol-2-ylmethyl)aniline (L) and its complexes, [Zn(L)(Cl)2] and [Co(L)(Cl)2], have been synthesised and the structures of both complexes have been determined. [Zn(L)(Cl)2] can be described as distorted tetrahedron, while [Co(L)(Cl)2] has a distorted trigonal bipyramidal geometry. In addition, the complexes were found to possess potent hydroxyl antioxidant activity and be better than standard antioxidants like vitamin C and mannitol. In particular, [Co(L)(Cl)2] displayed excellent activity towards the superoxide radical.
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Affiliation(s)
- Huilu Wu
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, P.R. China
| | - Han Zhang
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, P.R. China
| | - Fei Wang
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, P.R. China
| | - Hongping Peng
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, P.R. China
| | - Yiming Cui
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, P.R. China
| | - Yuanyuan Li
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, P.R. China
| | - Yanhui Zhang
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, P.R. China
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Wu H, Zhang J, Zhang Y, Chen C, Li Z, Wu M, Yang Z. Syntheses, crystal structures, electrochemical studies, and antioxidant activities of zinc(II) and copper(II) complexes with bis(2-benzimidazolyl) aniline derivatives. J COORD CHEM 2015. [DOI: 10.1080/00958972.2014.1003549] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Huilu Wu
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
| | - Jiawen Zhang
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
| | - Yanhui Zhang
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
| | - Chengyong Chen
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
| | - Zhen Li
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
| | - Mingchang Wu
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
| | - Zaihui Yang
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
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Bansal Y, Kaur M, Silakari O. Benzimidazole–ibuprofen/mesalamine conjugates: Potential candidates for multifactorial diseases. Eur J Med Chem 2015; 89:671-82. [DOI: 10.1016/j.ejmech.2014.10.081] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 09/22/2014] [Accepted: 10/29/2014] [Indexed: 12/23/2022]
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42
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Synthesis, crystal structures, electrochemical studies, and antioxidant activities of manganese(II) and copper(II) complexes of bis(N-allylbenzimidazol-2-ylmethyl)aniline. TRANSIT METAL CHEM 2014. [DOI: 10.1007/s11243-014-9900-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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43
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Bansal Y, Silakari O. 2-Aminobenzimidazole conjugates of NSAIDS: novel compounds with immunomodulatory, anti-inflammatory and antioxidant actions. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1198-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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44
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V. M, Kulkarni MV, Shah A, Alagawadi KR. Mannich Reaction as a New Route for the Synthesis of Tetrahydro Pyrimido Benzimidazolyl Coumarins. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Madhura V.
- Department of Chemistry; Karnatak University; Pavate Nagar Dharwad 580 003 India
| | - Manohar V. Kulkarni
- Department of Chemistry; Karnatak University; Pavate Nagar Dharwad 580 003 India
| | - Amol Shah
- Department of Pharmaceutical Chemistry; Karnatak Lingayat Education University's College of Pharmacy; Belgaum 590010 India
| | - Kallanagouda R. Alagawadi
- Department of Pharmaceutical Chemistry; Karnatak Lingayat Education University's College of Pharmacy; Belgaum 590010 India
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45
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Synthesis, molecular modeling and anti-inflammatory screening of novel fluorinated quinoline incorporated benzimidazole derivatives using the Pfitzinger reaction. J Fluor Chem 2014. [DOI: 10.1016/j.jfluchem.2014.02.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Gaba M, Singh S, Mohan C. Benzimidazole: an emerging scaffold for analgesic and anti-inflammatory agents. Eur J Med Chem 2014; 76:494-505. [PMID: 24602792 DOI: 10.1016/j.ejmech.2014.01.030] [Citation(s) in RCA: 200] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/19/2014] [Accepted: 01/20/2014] [Indexed: 02/02/2023]
Abstract
Within the vast range of heterocycles, benzimidazole and its derivatives are found to be trendy structures employed for discovery of drugs in the field of pharmaceutical and medicinal chemistry. The unique structural features of benzimidazole and a wide range of biological activities of its derivatives made it privileged structure in drug discovery. Recently, benzimidazole scaffold has emerged as a pharmacophore of choice for designing analgesic and anti-inflammatory agents active on different clinically approved targets. To pave the way for future research, there is a need to collect the latest information in this promising area. In the present review we have collated published reports on this versatile core to provide an insight so that its full therapeutic potential can be utilized for the treatment of pain and inflammation.
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Affiliation(s)
- Monika Gaba
- Department of Pharmaceutical Sciences, ASBASJSM College of Pharmacy, Bela, Ropar, Punjab, India.
| | - Sarbjot Singh
- Drug Discovery Research, Panacea Biotec Pvt. Ltd., Mohali, Punjab, India
| | - Chander Mohan
- Rayat-Bahra Institute of Pharmacy, Hoshiarpur, Punjab, India
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47
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Tang X, Yang Z, Zhang J, Chen C, Wu H. Synthesis, structure, antioxidation and DNA-binding studies of a zinc(II) complex with tris(2-benzimidazylmethyl)amine and cinnamate. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1534-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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48
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Majhi PK, Schnakenburg G, Streubel R. From bis(imidazole-2-thion-4-yl)phosphane to a flexible P-bridged bis(NHC) ligand and its silver complex. Dalton Trans 2014; 43:16673-9. [DOI: 10.1039/c4dt02479f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of the first P(v)-bridged bis(NHC) ligand 7 was achieved via deprotonation of P(v)-functionalized bis(imidazolium) salt 6, which was obtained via oxidative desulfurization of bis(imidazole-2-thion-4-yl)phosphane 2.
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Affiliation(s)
- Paresh Kumar Majhi
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn
- 53121 Bonn, Germany
| | - Gregor Schnakenburg
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn
- 53121 Bonn, Germany
| | - Rainer Streubel
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn
- 53121 Bonn, Germany
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49
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M. Farag A, E. M. Mekky A, F. Darweesh A, A. Salman A. Synthesis of Novel Thiazole and 1,3,4-Thiadiazole Derivatives Incorporating Phenylsulfonyl Moiety. HETEROCYCLES 2014. [DOI: 10.3987/com-14-13020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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50
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Bansal Y, Silakari O. Synthesis and pharmacological evaluation of polyfunctional benzimidazole-NSAID chimeric molecules combining anti-inflammatory, immunomodulatory and antioxidant activities. Arch Pharm Res 2013; 37:1426-36. [DOI: 10.1007/s12272-013-0282-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Accepted: 10/29/2013] [Indexed: 12/29/2022]
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