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Anichina K, Kaloyanov N, Zasheva D, Rusew R, Nikolova R, Yancheva D, Bakov V, Georgiev N. Self-Assembled Molecular Complexes of 1,10-Phenanthroline and 2-Aminobenzimidazoles: Synthesis, Structure Investigations, and Cytotoxic Properties. Molecules 2024; 29:583. [PMID: 38338328 PMCID: PMC10856035 DOI: 10.3390/molecules29030583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
Three new molecular complexes (phen)3(2-amino-Bz)2(H+)(BF4-)·3H2O 5, (phen)3(2-amino-5(6)-methyl-Bz)2(H+)(BF4-)·H2O 6, and (phen)(1-methyl-2-amino-Bz)(H+)(BF4-) 7, were prepared by self-assembly of 1,10-phenanthroline (phen) and various substituted 2-aminobenzimidazoles. Confirmation of their structures was established through spectroscopic methods and elemental analysis. The X-ray diffraction analysis revealed that the crystal structure of 7 is stabilized by the formation of hydrogen bonds and short contacts. In addition, the molecular geometry and electron structure of molecules 5 and 6 were theoretically evaluated using density functional theory (DFT) methods. According to the DFT B3LYP/6-311+G* calculations, the protonated benzimidazole (Bz) units act as NH hydrogen bond donors, binding two phenanthrolines and a BF4- ion. Non-protonated Bz unit form hydrogen bonds with the N-atoms of a third molecule phen. The molecular assembly is held together by π-π stacking between benzimidazole and phenanthroline rings, allowing for N-atoms to associate with water molecules. The complexes were tested in vitro for their tumor cell growth inhibitory effects on prostate (PC3), breast (MDA-MB-231 and MCF-7), and cervical (HeLa) cancer cell lines using MTT-dye reduction assay. The in vitro cytotoxicity analysis and spectrophotometric investigation in the presence of ct-DNA, showed that self-assembled molecules 5-7 are promising DNA-binding anticancer agents warranting further in-depth exploration.
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Affiliation(s)
- Kameliya Anichina
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria; (K.A.); (V.B.)
| | - Nikolay Kaloyanov
- Department of Organic Chemistry, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria; (N.K.); (D.Y.)
| | - Diana Zasheva
- Laboratory of Reproductive OMICs Technologies, Acad. Kiril Bratanov Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, 73A Tsarigradsko Shosse Blvd., 1113 Sofia, Bulgaria;
| | - Rusi Rusew
- Department of Structural Crystallography and Materials Science, Acad. Ivan Kostov Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad G. Bonchev Str., Build. 107, 1113 Sofia, Bulgaria; (R.R.); (R.N.)
| | - Rositsa Nikolova
- Department of Structural Crystallography and Materials Science, Acad. Ivan Kostov Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad G. Bonchev Str., Build. 107, 1113 Sofia, Bulgaria; (R.R.); (R.N.)
| | - Denitsa Yancheva
- Department of Organic Chemistry, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria; (N.K.); (D.Y.)
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Build. 9, 1113 Sofia, Bulgaria
| | - Ventsislav Bakov
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria; (K.A.); (V.B.)
| | - Nikolai Georgiev
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria; (K.A.); (V.B.)
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Anichina K, Georgiev N, Lumov N, Vuchev D, Popova-Daskalova G, Momekov G, Cherneva E, Mihaylova R, Mavrova A, Atanasova-Vladimirova S, Piroeva I, Yancheva D. Fused Triazinobenzimidazoles Bearing Heterocyclic Moiety: Synthesis, Structure Investigations, and In Silico and In Vitro Biological Activity. Molecules 2023; 28:5034. [PMID: 37446695 DOI: 10.3390/molecules28135034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
[1,3,5]Triazino[1,2-a]benzimidazole-2-amines bearing heterocyclic moiety in 4-position were synthesized. The compounds were characterized by elemental analysis, IR, 1H-NMR, 13C-NMR, and HRMS spectroscopy. The molecular geometry and electron structure of these molecules were theoretically studied using density functional theory (DFT) methods. The molecular structure of the synthesized fused triazinobenzimidazole was confirmed to correspond to the 3,4-dihydrotriazinobenzimidazole structure through the analysis of spectroscopic NMR data and DFT calculations. The antinematodic activity was evaluated in vitro on isolated encapsulated muscle larvae (ML) of Trichinella spiralis. The results showed that the tested triazinobenzimidazoles exhibit significantly higher efficiency than the conventional drug used to treat trichinosis, albendazole, at a concentration of 50 μg/mL. The compound 3c substituted with a thiophen-2-yl moiety exhibited the highest anthelmintic activity, with a larvicidal effect of 58.41% at a concentration of 50 μg/mL after 24 h of incubation. Following closely behind, the pyrrole analog 3f demonstrated 49.90% effectiveness at the same concentration. The preliminary structure-anti-T. spiralis activity relationship (SAR) of the analogues in the series was discussed. The cytotoxicity of the benzimidazole derivatives against two normal fibroblast cells (3T3 and CCL-1) and two cancer human cell lines (MCF-7 breast cancer cells and chronic myeloid leukemia cells AR-230) was evaluated using the MTT-dye reduction assay. The screening results indicated that the compounds showed no cytotoxicity against the tested cell lines. An in silico study of the physicochemical and pharmacokinetic characteristics of the novel synthesized fused triazinobenzimidazoles showed that they were characterized by a significant degree of drug-likeness and optimal properties for anthelmintic agents.
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Affiliation(s)
- Kameliya Anichina
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria
| | - Nikolai Georgiev
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria
| | - Nikolay Lumov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. Bl. 9, 1113 Sofia, Bulgaria
| | - Dimitar Vuchev
- Department of Infectious Diseases, Parasitology and Tropical Medicine, Medical University, 15A Vasil Aprilov Blvd., 4002 Plovdiv, Bulgaria
| | - Galya Popova-Daskalova
- Department of Infectious Diseases, Parasitology and Tropical Medicine, Medical University, 15A Vasil Aprilov Blvd., 4002 Plovdiv, Bulgaria
| | - Georgi Momekov
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Emiliya Cherneva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. Bl. 9, 1113 Sofia, Bulgaria
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Rositsa Mihaylova
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Anelia Mavrova
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria
| | | | - Iskra Piroeva
- Institute of Physical Chemistry, Bulgarian Academy of Sciences, Build. 11, 1113 Sofia, Bulgaria
| | - Denitsa Yancheva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. Bl. 9, 1113 Sofia, Bulgaria
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Padilla-Martínez II, Cruz A, García-Báez EV, Rosales-Hernández MC, Mendieta Wejebe JE. N-substitution Reactions of 2-Aminobenzimidazoles to Access Pharmacophores. Curr Org Synth 2023; 20:177-219. [PMID: 35272598 DOI: 10.2174/1570179419666220310124223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/22/2021] [Accepted: 12/31/2021] [Indexed: 11/22/2022]
Abstract
Benzimidazole (BI) and its derivatives are interesting molecules in medicinal chemistry because several of these compounds have a diversity of biological activities and some of them are even used in clinical applications. In view of the importance of these compounds, synthetic chemists are still interested in finding new procedures for the synthesis of these classes of compounds. Astemizole (antihistaminic), Omeprazole (antiulcerative), and Rabendazole (fungicide) are important examples of compounds used in medicinal chemistry containing BI nuclei. It is interesting to observe that several of these compounds contain 2-aminobenzimidazole (2ABI) as the base nucleus. The structures of 2ABI derivatives are interesting because they have a planar delocalized structure with a cyclic guanidine group, which have three nitrogen atoms with free lone pairs and labile hydrogen atoms. The 10-π electron system of the aromatic BI ring conjugated with the nitrogen lone pair of the hexocyclic amino group, making these heterocycles to have an amphoteric character. Synthetic chemists have used 2ABI as a building block to produce BI derivatives as medicinally important molecules. In view of the importance of the BIs, and because no review was found in the literature about this topic, we reviewed and summarized the procedures related to the recent methodologies used in the N-substitution reactions of 2ABIs by using aliphatic and aromatic halogenides, dihalogenides, acid chlorides, alkylsulfonic chlorides, carboxylic acids, esters, ethyl chloroformates, anhydrides, SMe-isothioureas, alcohols, alkyl cyanates, thiocyanates, carbon disulfide and aldehydes or ketones to form Schiff bases. The use of diazotized 2ABI as intermediate to obtain 2-diazoBIs was included to produce Nsubstituted 2ABIs of pharmacological interest. Some commentaries about their biological activity were included.
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Affiliation(s)
- Itzia I Padilla-Martínez
- Laboratorio de Química Supramolecular y Nanociencias, Instituto Politécnico Nacional UPIBI, Av. Acueducto s/n, Barrio la Laguna Ticomán, Ciudad de México, 07340, Mexico
| | - Alejandro Cruz
- Laboratorio de Química Supramolecular y Nanociencias, Instituto Politécnico Nacional UPIBI, Av. Acueducto s/n, Barrio la Laguna Ticomán, Ciudad de México, 07340, Mexico
| | - Efrén V García-Báez
- Laboratorio de Química Supramolecular y Nanociencias, Instituto Politécnico Nacional UPIBI, Av. Acueducto s/n, Barrio la Laguna Ticomán, Ciudad de México, 07340, Mexico
| | - Martha C Rosales-Hernández
- Laboratorio de Biofísica y Biocatálisis, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Salvador Díaz Mirón s/n, Casco de Santo Tomás, Distrito Federal 11340, México
| | - Jessica E Mendieta Wejebe
- Laboratorio de Biofísica y Biocatálisis, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Salvador Díaz Mirón s/n, Casco de Santo Tomás, Distrito Federal 11340, México
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Toman D, Cankař P. Synthesis of Unsymmetrical 1,1’‐Bibenzimidazoles via an N‐Amination Reaction Forming the Key N‐N Bond. ChemistrySelect 2022. [DOI: 10.1002/slct.202203144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Daniel Toman
- Department of Organic Chemistry Faculty of Science Palacký University 17. Listopadu 1192/12 77900 Olomouc Czech Republic
| | - Petr Cankař
- Department of Organic Chemistry Faculty of Science Palacký University 17. Listopadu 1192/12 77900 Olomouc Czech Republic
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Aminimanesh A, Khazaei A, Ahmadian H, Vafajoo Z. Selective One-pot Synthesis of 2-Aryl-1-arylmethyl-1H-1,3-benzimidazoles in the Presence of Ammonium Persulfate and Their Antioxidant Activity. ORG PREP PROCED INT 2022. [DOI: 10.1080/00304948.2022.2034461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Ardeshir Khazaei
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
| | | | - Zahra Vafajoo
- Young Researchers Club, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
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Mavrova AT, Dimov S, Yancheva D, Rangelov M, Wesselinova D, Naydenova E. New C2- and N3-Modified Thieno[2,3-d]Pyrimidine Conjugates with Cytotoxicity in the Nanomolar Range. Anticancer Agents Med Chem 2021; 22:1201-1212. [PMID: 34315388 DOI: 10.2174/1871520621666210727130227] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 06/02/2021] [Accepted: 06/07/2021] [Indexed: 11/22/2022]
Abstract
AIMS The aim of the current study was to develop and explore a series of new cytotoxic agents based on the conjugation between the thieno[2,3-d]pyrimidine moiety and a second pharmacophore at the C2 or N3 position. BACKGROUND As the thieno[2,3-d]pyrimidine core is a bioisostere of the 4-anilinoquinazoline, various new thienopyrimidine derivatives were synthesized by modifying the structure of the clinically used anticancer quinazoline EGFR inhibitors of the first generation - gefitinib, and second generation - dacomitinib and canertinib. It was reported that some thieno[2,3-d]pyrimidine derivatives showed improved EGFR inhibitory activity. On the other hand, the benzimidazole heterocycle is present as a pharmacophore unit in the structure of many clinically used chemotherapeutic agents. Some 2-aminobenzimidazole derivatives, possessing anticancer activity, demonstrated EGFR inhibition and the benzimidazole derivative EGF816 is currently in the second phase of clinical trials. OBJECTIVE The objectives of the study were design of a novel series thieno[2,3-d]pyrimidines, synthesis of the compounds and investigation of their effects towards human cancer HT-29, MDA-MB-231, HeLa, HepG2 and to normal human Lep3 cell lines. (American Type Culture Collection, ATCC, Rockville, MD, USA) Methods: The synthetic protocol implemented cyclocondensation of 2-amino-thiophenes and nitriles in inert medium, aza-Michael addition to benzimidazole derivatives and nucleophylic substitution at the N3 place. MTS test was used in order to establish the cytotoxicity of the tested compounds. SAR analysis and in silico assessment of the inhibitory potential towards human oncogenic V599EB-Raf were performed using Molinspiration tool and Molecular Operating environment software. RESULTS The MTS test data showed that almost all studied thieno[2,3-d]pyirimidines (9-13, 21-22 and 25) manifest high inhibiting effect on the cell proliferation at nanomolar concentrations, whereat compounds 9 (IC50 = 130 nM) and 10 (IC50 = 261 nM) containing amino acid moiety, and 21 (IC50 = 108 nM) possesing two thienopyrimidine moieties attached to a 1,3-disubstituted benzimidazole linker, revealed many times lower toxicity against Lep3 cells compared to the cancer cells. Thienopyrimidines 11-13 possessed high selectivity against HeLa cells. Compound 13 showed high inhibitory activity against MDA-MB-231 and HepG2, with IC50 1.44 nM and 1.11 nM respectively. To outline the possible biological target of the studied coumpounds, their potential to interact with human oncogenic V599EB-Raf was explored by a docking study. As a result, it was suggested that the benzimidazolyl and glycyl fragments could enhance the binding ability of the new compounds by increasing the number of hydrogen bond acceptors and by stabilizing the inactive form of the enzyme. CONCLUSION The thienopyrimidines tested in vitro towards human cancer HT-29, MDA-MB-231, HeLa, HepG2 and normal human Lep3 cell lines demonstrated cytotoxicity in nanomolar range. It was established that compounds 9, 10 and 21 showed many times lower toxicity against normal Lep3 cells that can provide a high selectivity towards all four cancer cell lines at small concentrations. Based on the analysis of the structure-activity relationship, the observed trends in the cytotoxicity could be related to the lipophilicity and the topological polar surface area of the tested compounds. The docking study on the potential of the new thieno[2,3-d]pyrimidine-4-ones to interact with mutant V599EB-Raf showed that the compounds might be able to stabilize the enzyme in its inactive form.
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Affiliation(s)
- Anelia Ts Mavrova
- University of Chemical Technology and Metallurgy, Department of Organic Synthesis, 8 Kliment Ohridski Blvd., 1756 Sofia. Bulgaria
| | - Stefan Dimov
- University of Chemical Technology and Metallurgy, Department of Organic Synthesis, 8 Kliment Ohridski Blvd., 1756 Sofia. Bulgaria
| | - Denitsa Yancheva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., build. 9, 1113 Sofia. Bulgaria
| | - Miroslav Rangelov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., build. 9, 1113 Sofia. Bulgaria
| | - Diana Wesselinova
- Institute of General and Comparative Pathology, Bulgarian Academy of Science, Acad. G. Bonchev Str., build. 25, 1113 Sofia. Bulgaria
| | - Emilia Naydenova
- University of Chemical Technology and Metallurgy, Department of Organic Synthesis, 8 Kliment Ohridski Blvd., 1756 Sofia. Bulgaria
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Çiftçi G, Temel HE, Yurttaş L. Apoptotic Effect of Novel Benzimidazole Derivatives Bearing Pyridyl/Pyrimidinyl Piperazine Moiety. Anticancer Agents Med Chem 2021; 22:1780-1792. [PMID: 34238172 DOI: 10.2174/1871520621666210708095110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/23/2021] [Accepted: 05/30/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Benzimidazole derivatives bearing pyridyl/pyrimidinyl piperazine moiety has attracted attention in medicinal chemistry and modern drug discovery since it exhibited a variety of biological activities, including anticancer activity. OBJECTIVE In this study, we have designed and synthesized novel 1-[2-oxo-2-(4-substituted phenyl)ethyl]benzimidazol-2-yl)methyl 4-(2-pyridyl/pyrimidin-2-yl)piperazine-1-carbodithioate derivatives (2a-m). We also investigated their anticancer activities against A549 lung adenocarcinoma and C6 rat glioma cell lines and selectivity against NIH/3T3 mouse embryonic fibroblast cell lines. Cholinesterase inhibition effects of these compounds were also measured to investigate the relationship between anticancer activity and cholinesterases. METHOD The cytotoxic activities of these acquired thirteen final compounds were screened using MTT assay on A549, C6, and NIH/3T3 cell lines. Cell proliferation ELISA, BRDU (colorimetric) assay was used for measuring proliferation in replicative cells in which DNA synthesis occurs. Flow cytometric analysis was used for measuring apoptotic cell percentages, caspase 3 activity, and mitochondrial membrane depolarised cell percentages. RESULTS Compounds 2e, 2f, and 2k have been established as the most active antitumor agents with selective cytotoxicities (76.58±6.43, 55.13±5.75, and 32.94±3.02 µM respectively for A549; 86.48±3.60, 97.12±30.21, and 59.29±3.95 µM respectively for C6), high DNA synthesis inhibition rates and high apoptotic cell percentages on both cell lines. CONCLUSION The results have shown that compounds 2e, 2f, and 2k have potential anticancer agents against A549 and C6 cell lines.
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Affiliation(s)
- Gulsen Çiftçi
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskisehir, Turkey
| | - Halide Edip Temel
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskisehir, Turkey
| | - Leyla Yurttaş
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskisehir, Turkey
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Mohareb RM, Milad YR, Mostafa BM, El-Ansary RA. New Approaches for the Synthesis of Heterocyclic Compounds Corporating Benzo[d]imidazole as Anticancer Agents, Tyrosine, Pim-1 Kinases Inhibitions and their PAINS Evaluations. Anticancer Agents Med Chem 2021; 21:327-342. [PMID: 32698742 DOI: 10.2174/1871520620666200721111230] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/08/2020] [Accepted: 06/17/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Benzo[d]imidazoles are highly biologically active, in addition, they are considered as a class of heterocyclic compounds with many pharmaceutical applications. OBJECTIVE We are aiming in this work to synthesize target molecules that possess not only anti-tumor activities but also kinase inhibitors. The target molecules were obtained starting from the benzo[d]imidazole derivatives followed by their heterocyclization reactions to produce anticancer target molecules. METHODS The 1-(1H-benzo[d]imidazol-2-yl)propan-2-one (3) and the ethyl 2-(1H-benzo[d]imidazol-2- yl)acetate (16) were used as the key starting material which reacted with salicylaldehyde to give the corresponding benzo[4,5]imidazo[1,2-a]quinoline derivatives. On the other hand, both of them were reacted with different reagents to give thiophene, pyran and benzo[4,5]imidazo[1,2-c]pyrimidine derivatives. The synthesized compounds were evaluated against the six cancer cell lines A549, HT-29, MKN-45, U87MG, SMMC-7721, and H460 together with inhibitions toward tyrosine kinases, c-Met kinase and prostate cancer cell line PC-3 using the standard MTT assay in vitro, with foretinib as the positive control. RESULTS Most of the synthesized compounds exhibited high inhibitions toward the tested cancer cell lines. In addition, tyrosine and Pim-1 kinases inhibitions were performed for the most active compounds where the variation of substituent through the aryl ring and heterocyclic ring afforded compounds with high activities. Our analysis showed that there is a strong correlation between the structure of the compound and the substituents of target molecules. CONCLUSION Our present research proved that the synthesized heterocyclic compounds with varieties of substituents have a strong impact on the activity of compounds. The evaluations through different cell lines and tyrosine kinases indicated that the compounds were the excellent candidates as anticancer agents. This could encourage doing further research within this field for the building of compounds with high inhibitions.
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Affiliation(s)
- Rafat M Mohareb
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Yara R Milad
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Egypt
| | - Bahaa M Mostafa
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Reem A El-Ansary
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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Kamat V, Yallur BC, Poojary B, Patil VB, Nayak SP, Krishna PM, Joshi SD. Synthesis, molecular docking, antibacterial, and anti‐inflammatory activities of benzimidazole‐containing tricyclic systems. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202000454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Vinuta Kamat
- Department of Post‐Graduate Studies & Research in Chemistry Mangalore University Mangalagangothri Mangalore Dakshina Kannada, Karnataka 574199 India
| | - Basappa C. Yallur
- Department of Chemistry Ramaiah Institute of Technology MSR Nagar Bangalore Karnataka India
| | - Boja Poojary
- Department of Post‐Graduate Studies & Research in Chemistry Mangalore University Mangalagangothri Mangalore Dakshina Kannada, Karnataka 574199 India
| | - Veerabhadragouda B. Patil
- Institute of Energetic Materials, Faculty of Chemical Technology University of Pardubice Doubravice 41 Pardubice 532 10 Czech Republic
| | - Suresh P. Nayak
- Department of Post‐Graduate Studies & Research in Chemistry Mangalore University Mangalagangothri Mangalore Dakshina Kannada, Karnataka 574199 India
| | | | - Shrinivas D. Joshi
- Novel Drug Design and Discovery Laboratory, Department of Pharmaceutical Chemistry, S. E. T.'s College of Pharmacy Sangolli Rayanna Nagar Dharwad Karnataka 580 002 India
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10
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Argirova MA, Georgieva MK, Hristova-Avakumova NG, Vuchev DI, Popova-Daskalova GV, Anichina KK, Yancheva DY. New 1 H-benzimidazole-2-yl hydrazones with combined antiparasitic and antioxidant activity. RSC Adv 2021; 11:39848-39868. [PMID: 35494105 PMCID: PMC9044521 DOI: 10.1039/d1ra07419a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/05/2021] [Indexed: 11/21/2022] Open
Abstract
Parasitic infections, caused mainly by the species Trichinella spiralis (T. spiralis), are widespread around the world and lead to morbidity and mortality in the population. Meanwhile, some studies have showed that these parasites induce oxidative stress in the infected host. With the aim of developing a class of compounds combining anthelmintic with antioxidant properties, a series of new benzimidazolyl-2-hydrazones 5a-l, bearing hydroxyl- and methoxy-groups, were synthesized. The anthelmintic activity on encapsulated T. spiralis was studied in vitro thus indicating that all hydrazones were more active than the clinically used anthelmintic drugs albendazole and ivermectin. 5b and 5d killed the total parasitic larvae (100% effectiveness) after 24 hours incubation period at 37 °C in both concentrations (50 and 100 μg ml−1). The antioxidant activity of the target compounds was elucidated in vitro against stable free radicals DPPH and ABTS as well as iron induced oxidative damage in model systems containing biologically relevant molecules lecithin and deoxyribose. The two 2,3- and 3,4-dihydroxy hydrazones 5b and 5d were the most effective radical scavengers in all studied systems. DFT calculations were applied to calculate the reaction enthalpies in polar and nonpolar medium and estimate the preferred mechanism of antioxidant activity. The relative radical scavenging ability of compounds 5a-l showed a good correlation to the experimentally observed trends. It was found that the studied compounds are capable to react with various free radicals – ˙OCH3, ˙OOH and ˙OOCH3, through several possible reaction pathways – HAT in nonpolar medium, SPLET in polar medium and RAF in both media. The design of new drug candidates that combine anthelmintic and antioxidant actions in one molecule offers a beneficial approach in the treatment of the tissue damages, immune system dysfunction and oxidative stress caused by trichinellosis.![]()
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Affiliation(s)
- Maria A. Argirova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., build. 9, 1113 Sofia, Bulgaria
| | - Miglena K. Georgieva
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Nadya G. Hristova-Avakumova
- Department of Medical Physics and Biophysics, Faculty of Medicine, Medical University of Sofia, 2 Zdrave Str., 1431 Sofia, Bulgaria
| | - Dimitar I. Vuchev
- Department of Infectious Diseases, Parasitology and Tropical Medicine, Medical University, Plovdiv, Bulgaria
| | - Galya V. Popova-Daskalova
- Department of Infectious Diseases, Parasitology and Tropical Medicine, Medical University, Plovdiv, Bulgaria
| | - Kameliya K. Anichina
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria
| | - Denitsa Y. Yancheva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., build. 9, 1113 Sofia, Bulgaria
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11
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Halder B, Banerjee F, Nag A. MWCNTs‐ZrO
2
as a reusable heterogeneous catalyst for the synthesis of
N
‐heterocyclic scaffolds under green reaction medium. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5906] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bipasa Halder
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Flora Banerjee
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Ahindra Nag
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 India
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12
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Gergely M, Bényei A, Kollár L. 2-Aminobenzimidazole and -benzoxazole as N-nucleophile in palladium-catalysed aminocarbonylation. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Chen JQ, Liu X, Guo J, Dong ZB. A Chemoselective and Desulfurative Chan-Lam Coupling: C-N Bond Formation between Benzimidazoline-2-Thiones and Arylboronic Acids. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000075] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jin-Quan Chen
- School of Chemistry and Environmental Engineering; Wuhan Institute of Technology; 430205 Wuhan China
| | - Xing Liu
- School of Chemistry and Environmental Engineering; Wuhan Institute of Technology; 430205 Wuhan China
| | - Jia Guo
- Key Laboratory of Green Chemical Process; Ministry of Education; Wuhan Institute of Technology; 430205 Wuhan China
- Hubei Key Laboratory of Novel Reactor and Green Chemistry Technology; Ministry of Education; Wuhan Institute of Technology; 430205 Wuhan China
| | - Zhi-Bing Dong
- School of Chemistry and Environmental Engineering; Wuhan Institute of Technology; 430205 Wuhan China
- Key Laboratory of Green Chemical Process; Ministry of Education; Wuhan Institute of Technology; 430205 Wuhan China
- Hubei Key Laboratory of Novel Reactor and Green Chemistry Technology; Ministry of Education; Wuhan Institute of Technology; 430205 Wuhan China
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules; Ministry of Education; Hubei University; 430062 Wuhan China
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14
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Cruz A, Martínez IIP, Ramos-Organillo AA. Methods to Access 2-aminobenzimidazoles of Medicinal Importance. CURR ORG CHEM 2020. [DOI: 10.2174/1385272823666191023150201] [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
:Benzimidazole (BI) and derivatives are interesting because several of these compounds have been found to have a diversity of biological activities with clinical applications. In view of their importance, the synthesis of BI and its derivatives is still considered as a challenge for synthetic chemists. Examples of compounds used in medicinal chemistry containing BI, as important nucleus, are Astemizole (antihistaminic), Omeprazole (antiulcerative) and Rabendazole (fungicide), some of these compounds have the 2- aminobenzimidazole (2ABI) as base nucleus. The structure of 2ABI derivatives contains a cyclic guanidine moiety, which is interesting because of its free lone pairs, labile hydrogen atoms and planar delocalized structure. The delocalized 10-π electron system and the extension of the electron conjugation with the exocyclic amino group, in 2ABI, making these heterocycles to have amphoteric character. The 2ABI has been used as building blocks for the synthesis of several BI derivatives as medicinally important molecules. On these bases, herein, we present a bibliographic review concerning the recent methodologies used in the synthesis of 2ABIs, including the substituted ones.
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Affiliation(s)
- Alejandro Cruz
- Instituto Politécnico Nacional-UPIBI, Laboratorio de Química Supramolecular y Nanociencias, Av. Acueducto s/n, Barrio la Laguna Ticomán, México, D. F, 07340, Mexico
| | - Itzia I. Padilla Martínez
- Instituto Politécnico Nacional-UPIBI, Laboratorio de Química Supramolecular y Nanociencias, Av. Acueducto s/n, Barrio la Laguna Ticomán, México, D. F, 07340, Mexico
| | - Angel A. Ramos-Organillo
- Facultad de Ciencias Químicas, Universidad de Colima, Km 9 Carr. Colima- Coquimatlán, 28400, Coquimatlán, Colima, Mexico
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15
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Syntheses of N-substituted benzimidazolone derivatives: DFT calculations, Hirshfeld surface analysis, molecular docking studies and antibacterial activities. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127174] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Saber A, Sebbar NK, Hökelek T, Labd Taha M, Mague JT, Hamou Ahabchane N, Essassi EM. Crystal structure, Hirshfeld surface analysis and DFT studies of 1-benzyl-3-[(1-benzyl-1 H-1,2,3-triazol-5-yl)meth-yl]-2,3-di-hydro-1 H-1,3-benzo-diazol-2-one monohydrate. Acta Crystallogr E Crystallogr Commun 2020; 76:95-101. [PMID: 31921460 PMCID: PMC6944078 DOI: 10.1107/s2056989019016876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 12/17/2019] [Indexed: 11/23/2022]
Abstract
In the title mol-ecule, C24H21N5O·H2O, the di-hydro-benzo-diazole moiety is not quite planar, while the whole mol-ecule adopts a U-shaped conformation in which there is a close approach of the two benzyl groups. In the crystal, chains of alternating mol-ecules and lattice water extending along [201] are formed by O-HUncoordW⋯ODhyr and O-HUncoordW⋯NTrz (UncoordW = uncoordinated water, Dhyr = di-hydro and Trz = triazole) hydrogen bonds. The chains are connected into layers parallel to (010) by C-HTrz⋯OUncoordW hydrogen bonds with the di-hydro-benzo-diazole units in adjacent layers inter-calating to form head-to-tail π-stacking [centroid-to-centroid distance = 3.5694 (11) Å] inter-actions between them, which generates the overall three-dimensional structure. Hirshfeld surface analysis indicates that the most important contributions for the crystal packing are from H⋯H (52.1%), H⋯C/C⋯H (23.8%) and O⋯H/H⋯O (11.2%) inter-actions. Hydrogen-bonding and van der Waals inter-actions are the dominant inter-actions in the crystal packing. Density functional theory (DFT) optimized structures at the B3LYP/ 6-311 G(d,p) level are compared with the experimentally determined mol-ecular structure in the solid state. The HOMO-LUMO behaviour was elucidated to determine the energy gap.
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Affiliation(s)
- Asmaa Saber
- Laboratoire de Chimie Organique Hétérocyclique URAC 21, Pôle de Compétence Pharmacochimie, Av. Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco
| | - Nada Kheira Sebbar
- Laboratoire de Chimie Organique Hétérocyclique URAC 21, Pôle de Compétence Pharmacochimie, Av. Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco
- Laboratoire de Chimie Appliquée et Environnement, Equipe de Chimie Bioorganique Appliquée, Faculté des Sciences, Université Ibn Zohr, Agadir, Morocco
| | - Tuncer Hökelek
- Department of Physics, Hacettepe University, 06800 Beytepe, Ankara, Turkey
| | - Mohamed Labd Taha
- Laboratoire de Chimie Appliquée et Environnement, Equipe de Chimie Bioorganique Appliquée, Faculté des Sciences, Université Ibn Zohr, Agadir, Morocco
| | - Joel T. Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Noureddine Hamou Ahabchane
- Laboratoire de Chimie Organique Hétérocyclique URAC 21, Pôle de Compétence Pharmacochimie, Av. Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco
| | - El Mokhtar Essassi
- Laboratoire de Chimie Organique Hétérocyclique URAC 21, Pôle de Compétence Pharmacochimie, Av. Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco
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17
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Kankate RS, Gide PS, Belsare DP. Design, synthesis and antifungal evaluation of novel benzimidazole tertiary amine type of fluconazole analogues. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.02.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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18
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Synthesis, in vitro evaluation of antibacterial, antifungal and larvicidal activities of pyrazole/pyridine based compounds and their nanocrystalline MS (M = Cu and Cd) derivatives. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2002-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Synthesis, Molecular Docking Studies, and Antifungal Activity Evaluation of New Benzimidazole-Triazoles as Potential Lanosterol 14α-Demethylase Inhibitors. J CHEM-NY 2017. [DOI: 10.1155/2017/9387102] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Due to anticandidal importance of azole compounds, a new series of benzimidazole-triazole derivatives(5a–5s)were designed and synthesized as ergosterol inhibitors. The chemical structures of the target compounds were characterized by spectroscopic methods. The final compounds were screened for antifungal activity againstCandida glabrata(ATCC 90030),Candida krusei(ATCC 6258),Candida parapsilosis(ATCC 22019), andCandida albicans(ATCC 24433). Compounds5iand5sexhibited significant inhibitory activity againstCandidastrains with MIC50values ranging from 0.78 to 1.56 μg/mL. Cytotoxicity results revealed that IC50values of compounds5iand5sagainst NIH/3T3 are significantly higher than their MIC50values. Effect of the compounds5iand5sagainst ergosterol biosynthesis was determined by LC-MS-MS analysis. Both compounds caused a significant decrease in the ergosterol level. The molecular docking studies were performed to investigate the interaction modes between the compounds and active site of lanosterol 14-α-demethylase (CYP51), which is as a target enzyme for anticandidal azoles. Theoretical ADME predictions were also calculated for final compounds.
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20
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El-Sayed TH, Aboelnaga A, Hagar M. Ball Milling Assisted Solvent and Catalyst Free Synthesis of Benzimidazoles and Their Derivatives. Molecules 2016; 21:E1111. [PMID: 27563861 PMCID: PMC6274055 DOI: 10.3390/molecules21091111] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 08/13/2016] [Accepted: 08/15/2016] [Indexed: 11/16/2022] Open
Abstract
Benzoic acid and o-phenylenediamine efficiently reacted under the green solvent-free Ball Milling method. Several reaction parameters were investigated such as rotation frequency; milling balls weight and milling time. The optimum reaction condition was milling with 56.6 g weight of balls at 20 Hz frequency for one hour milling time. The study was extended for synthesis of a series of benzimidazol-2-one or benzimidazol-2-thione using different aldehydes; carboxylic acids; urea; thiourea or ammonium thiocyanate with o-phenylenediamine. Moreover; the alkylation of benzimidazolone or benzimidazolthione using ethyl chloroacetate was also studied.
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Affiliation(s)
- Taghreed H El-Sayed
- Faculty of Science, Chemistry Department, Yanbu, Taibah University, Yanbu, Saudi Arabia.
- Faculty of Women for Arts, Science and Education, Chemistry Department, Ain Shams University, Heliopolis, Cairo 11757, Egypt.
| | - Asmaa Aboelnaga
- Faculty of Science, Chemistry Department, Yanbu, Taibah University, Yanbu, Saudi Arabia.
- Faculty of Women for Arts, Science and Education, Chemistry Department, Ain Shams University, Heliopolis, Cairo 11757, Egypt.
| | - Mohamed Hagar
- Faculty of Science, Chemistry Department, Yanbu, Taibah University, Yanbu, Saudi Arabia.
- Faculty of Science, Chemistry Department, Alexandria University, Alexandria 21321, Egypt.
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21
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Abdel-Aziz HA, Eldehna WM, Ghabbour H, Al-Ansary GH, Assaf AM, Al-Dhfyan A. Synthesis, Crystal Study, and Anti-Proliferative Activity of Some 2-Benzimidazolylthioacetophenones towards Triple-Negative Breast Cancer MDA-MB-468 Cells as Apoptosis-Inducing Agents. Int J Mol Sci 2016; 17:ijms17081221. [PMID: 27483243 PMCID: PMC5000619 DOI: 10.3390/ijms17081221] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/17/2016] [Accepted: 07/11/2016] [Indexed: 12/12/2022] Open
Abstract
On account of its poor prognosis and deficiency of therapeutic stratifications, triple negative breast cancer continues to form the causative platform of an incommensurate number of breast cancer deaths. Aiming at the development of potent anticancer agents as a continuum of our previous efforts, a novel series of 2-((benzimidazol-2-yl)thio)-1-arylethan-1-ones 5a–w was synthesized and evaluated for its anti-proliferative activity towards triple negative breast cancer (TNBC) MDA-MB-468 cells. Compound 5k was the most active analog against MDA-MB-468 (IC50 = 19.90 ± 1.37 µM), with 2.1-fold increased activity compared to 5-fluorouracil (IC50 = 41.26 ± 3.77 µM). Compound 5k was able to induce apoptosis in MDA-MB-468, as evidenced by the marked boosting in the percentage of florecsein isothiocyanate annexin V (Annexin V–FITC)-positive apoptotic cells (upper right (UR) + lower right (LR)) by 2.8-fold in comparison to control accompanied by significant increase in the proportion of cells at pre-G1 (the first gap phase) by 8.13-fold in the cell-cycle analysis. Moreover, a quantitative structure activity relationship (QSAR) model was established to investigate the structural requirements orchestrating the anti-proliferative activity. Finally, we established a theoretical kinetic study.
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Affiliation(s)
- Hatem A Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Center, Dokki, Giza 12622, Egypt.
| | - Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo 11829, Egypt.
| | - Hazem Ghabbour
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Ghada H Al-Ansary
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo 11566, Egypt.
| | - Areej M Assaf
- Department of Biopharmaceutics and Clinical Pharmacy, Faculty of Pharmacy, The University of Jordan, Amman 11942, Jordan.
| | - Abdullah Al-Dhfyan
- Stem Cell & Tissue Re-Engineering Program, Research Center, King Faisal Specialized Hospital & Research Center, MBC-03, P.O. Box 3354, Riyadh 11211, Saudi Arabia.
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22
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Lee SY, Perotti A, De Jonghe S, Herdewijn P, Hanck T, Müller CE. Thiazolo[3,2-a]benzimidazol-3(2H)-one derivatives: Structure-activity relationships of selective nucleotide pyrophosphatase/phosphodiesterase1 (NPP1) inhibitors. Bioorg Med Chem 2016; 24:3157-65. [PMID: 27265686 DOI: 10.1016/j.bmc.2016.05.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/17/2016] [Accepted: 05/20/2016] [Indexed: 02/03/2023]
Abstract
Ecto-nucleotide pyrophosphatase/phosphodiesterase1 (NPP1) is the most important member of the NPP family, which consists of seven closely related proteins (NPP1-NPP7). This glycoprotein is a membrane-associated or secreted enzyme, which catalyzes the hydrolysis of a wide range of phosphodiester bonds, e.g., in nucleoside triphosphates, dinucleotides and nucleotide sugars. NPP1 plays a crucial role in various physiological functions including bone mineralization, soft-tissue calcification, and insulin receptor signaling. Recently, an upregulated expression of NPP1 has been observed in astrocytic brain cancers. Therefore, NPP1 has been proposed as a novel drug target for the treatment of glioblastoma. Despite their therapeutic potential, only few NPP1 inhibitors have been reported to date, which are in most cases non- or only moderately selective. The best investigated NPP1 inhibitors so far are nucleotide derivatives and analogs, however they are not orally bioavailable due to their high polarity. We identified thiazolo[3,2-a]benzimidazol-3(2H)-one derivatives as a new class of NPP1 inhibitors with drug-like properties. Among the 25 derivatives investigated in the present study, 2-[(5-iodo-2-furanyl)methylene]thiazolo[3,2-a]benzimidazol-3(2H)-one (17) was found to be the most potent NPP1 inhibitor with a Ki value of 467nM versus ATP as a substrate and an un-competitive mechanism of inhibition. Compound 17 did not inhibit other human ecto-nucleotidases, including NTPDase1 (CD39), NTPDases2-3, NPP2, NPP3, tissue-nonspecific alkaline phosphatase (TNAP), and ecto-5'-nucleotidase (eN, CD73), and is thus highly selective for NPP1.
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Affiliation(s)
- Sang-Yong Lee
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Arianna Perotti
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Steven De Jonghe
- KU Leuven, Rega Institute for Medical Research, Laboratory of Medicinal Chemistry, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Piet Herdewijn
- KU Leuven, Rega Institute for Medical Research, Laboratory of Medicinal Chemistry, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Theodor Hanck
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Christa E Müller
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany.
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23
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Desai NC, Shihory N, Bhatt M, Patel B, Karkar T. Studies on Antimicrobial Evaluation of Some 1-((1-(1H-Benzo[d]imidazol-2-yl)ethylidene)amino)-6-((arylidene)amino)-2-oxo-4-phenyl-1, 2-dihydropyridine-3,5-dicarbonitriles. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1102286] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Abdel-Aziz HA, Ghabbour HA, Eldehna WM, Al-Rashood ST, Al-Rashood KA, Fun HK, Al-Tahhan M, Al-Dhfyan A. 2-((Benzimidazol-2-yl)thio)-1-arylethan-1-ones: Synthesis, crystal study and cancer stem cells CD133 targeting potential. Eur J Med Chem 2015; 104:1-10. [DOI: 10.1016/j.ejmech.2015.09.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 06/26/2015] [Accepted: 09/15/2015] [Indexed: 02/02/2023]
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25
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Azam M, Khan AA, Al-Resayes SI, Islam MS, Saxena AK, Dwivedi S, Musarrat J, Trzesowska-Kruszynska A, Kruszynski R. Synthesis and characterization of 2-substituted benzimidazoles and their evaluation as anticancer agent. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 142:286-291. [PMID: 25706598 DOI: 10.1016/j.saa.2015.01.106] [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: 09/02/2014] [Revised: 01/04/2015] [Accepted: 01/30/2015] [Indexed: 06/04/2023]
Abstract
In this work, we report a series of benzimidazole derivatives synthesized from benzene-1,2-diamine and aryl-aldehydes at room temperature. The synthesized compounds have been characterized on the basis of elemental analysis and various spectroscopic studies viz., IR, (1)H- and (13)C-NMR, ESI-MS as well by X-ray single X-ray crystallographic study. Interaction of these compounds with CT-DNA has been examined with fluorescence experiments and showed significant binding ability. All the synthesized compounds have been screened for their antitumor activities against various human cancer cell lines viz., Human breast adenocarcinoma cell line (MCF-7), Human leukemia cell line (THP-1), Human prostate cancer cell lines (PC-3) and adenocarcinomic human alveolar basal epithelial cell lines (A-549). Interestingly, all the compounds showed significant anticancer activity.
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Affiliation(s)
- Mohammad Azam
- Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Azmat Ali Khan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saud I Al-Resayes
- Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | | | - Ajit Kumar Saxena
- Cancer Pharmacology Division, Indian Institute of Integrative Medicine, CSIR, Canal Road, Jammu 180001, India
| | - Sourabh Dwivedi
- Department of Ag. Microbiology, Faculty of Ag. Sciences, Aligarh Muslim University, Aligarh, India
| | - Javed Musarrat
- Department of Ag. Microbiology, Faculty of Ag. Sciences, Aligarh Muslim University, Aligarh, India
| | - Agata Trzesowska-Kruszynska
- Institute of General and Ecological Chemistry, Technical University of Lodz, Zeromskiego 116, 90-924 Lodz, Poland
| | - Rafal Kruszynski
- Institute of General and Ecological Chemistry, Technical University of Lodz, Zeromskiego 116, 90-924 Lodz, Poland
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26
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Ahmadian H, Veisi H, Karami C, Sedrpoushan A, Nouri M, Jamshidi F, Alavioon I. Cobalt manganese oxide nanoparticles as recyclable catalyst for efficient synthesis of 2-aryl-1-arylmethyl-1H-1,3-benzimidazoles under solvent-free conditions. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3283] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Hojat Veisi
- Department of Chemistry; Payame Noor University; Tehran Iran
| | - Changiz Karami
- Department of Chemistry, Faculty of Science; Islamic Azad University; Kermanshah Branch Kermanshah Iran
| | - Alireza Sedrpoushan
- Institute of Industrial Chemistry; Iranian Research Organization for Science and Technology; Tehran Iran
| | - Maryam Nouri
- Young Researchers and Elite Club, Kermanshah Branch; Islamic Azad University; Kermanshah Iran
| | - Fariba Jamshidi
- Young Researchers and Elite Club, Kermanshah Branch; Islamic Azad University; Kermanshah Iran
| | - Iman Alavioon
- School of Chemistry, College of Science; University of Tehran; Tehran Iran
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27
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Keri RS, Hiremathad A, Budagumpi S, Nagaraja BM. Comprehensive Review in Current Developments of Benzimidazole-Based Medicinal Chemistry. Chem Biol Drug Des 2014; 86:19-65. [PMID: 25352112 DOI: 10.1111/cbdd.12462] [Citation(s) in RCA: 202] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 10/12/2014] [Indexed: 12/13/2022]
Abstract
The properties of benzimidazole and its derivatives have been studied over more than one hundred years. Benzimidazole derivatives are useful intermediates/subunits for the development of molecules of pharmaceutical or biological interest. Substituted benzimidazole derivatives have found applications in diverse therapeutic areas such as antiulcer, anticancer agents, and anthelmintic species to name just a few. This work systematically gives a comprehensive review in current developments of benzimidazole-based compounds in the whole range of medicinal chemistry as anticancer, antibacterial, antifungal, anti-inflammatory, analgesic agents, anti-HIV, antioxidant, anticonvulsant, antitubercular, antidiabetic, antileishmanial, antihistaminic, antimalarial agents, and other medicinal agents. This review will further be helpful for the researcher on the basis of substitution pattern around the nucleus with an aim to help medicinal chemists for developing an SAR on benzimidazole drugs/compounds.
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Affiliation(s)
- Rangappa S Keri
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
| | - Asha Hiremathad
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
| | - Srinivasa Budagumpi
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
| | - Bhari Mallanna Nagaraja
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
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28
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Nofal ZM, Soliman EA, Abd El-Karim SS, El-Zahar MI, Srour AM, Sethumadhavan S, Maher TJ. Synthesis of Some New Benzimidazole-Thiazole Derivatives as Anticancer Agents. J Heterocycl Chem 2014; 51:1797-1806. [DOI: 10.1002/jhet.1886] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Affiliation(s)
- Zienab M. Nofal
- Therapeutical Chemistry Department; National Research Centre; Dokki Cairo Egypt
| | - Elsyed A. Soliman
- Chemistry Department, Faculty of Science; Ain Shams University; El Abbassia Cairo Egypt
| | | | - Magdy I. El-Zahar
- Therapeutical Chemistry Department; National Research Centre; Dokki Cairo Egypt
| | - Aladdin M. Srour
- Therapeutical Chemistry Department; National Research Centre; Dokki Cairo Egypt
| | | | - Timothy J. Maher
- Massachusetts College of Pharmacy and Health Sciences; Boston USA
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Shobana S, Subramaniam P, Dharmaraja J, Narayan A. Morphological and pharmacological investigation on some biopotent materials derived from substituted pyrimidine and imidazole enzyme constituents. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 126:242-253. [PMID: 24607474 DOI: 10.1016/j.saa.2014.01.089] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Accepted: 01/22/2014] [Indexed: 06/03/2023]
Abstract
Coordinating behavior of novel N2O type mixed ligand complexes (1-6) have been synthesized from substituted fluoropyrimidine [5-Fluorouracil (5-FU; A)] with biopotent imidazole enzyme constituents (B) viz., imidazole(him) and benzimidazole(bim) in the presence of Ni(II), Cu(II) and Zn(II) ions. Synthesized complexes were characterized by chemical analysis, spectral studies, magnetic moment and conductivity measurements. The results of chemical analysis and the observed low molar conductance values propose their stoichiometry to be 1:1:1 (M:A:B) with non-electrolytic nature. From the spectral data, it is inferred that the ligands A & B coordinate with M(II) ions in bi and monodentate approach through C(4)=O, N(3) and imidazole ring N(3) atoms respectively. The thermogravimetric analysis shows the dehydration, decomposition and thermal stability of mixed ligand complexes. XRD and SEM patterns show sharp crystalline peaks with homogeneous morphology. In vitro antimicrobial activities of free ligands (A & B) and their metal complexes were screened against some pathogenic strains by well diffusion technique. Absorption and gel electrophoresis experiments on the interaction of mixed ligand complexes with DNA suggest that all the complexes can bind as well as cleave the DNA by intercalation between chromophores and DNA base pairs. In addition, in vitro antioxidant activities were tested by DPPH free radical scavenging model.
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Affiliation(s)
- Sutha Shobana
- Department of Chemistry, Division of Science and Humanities, Rajas International Institute of Technology for Women, Ozhuginaserri, Nagercoil 629 001, Tamil Nadu, India
| | - Perumal Subramaniam
- Department of Chemistry and Research Centre, Aditanar College of Arts and Science, Virapandianpatnam, Thiruchendur 628 216, Thoothukudi District, Tamil Nadu, India.
| | - Jeyapraksh Dharmaraja
- Department of Chemistry, Division of Science and Humanities, Sree Sowdambika College of Engineering, Chettikurichi, Aruppukottai 626 134, Tamil Nadu, India
| | - Arvind Narayan
- Division of Science and Humanities, K.N.S.K. College of Engineering, Therekalputhoor, Nagercoil 629 001, Kanyakumari District, India
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Noolvi M, Agrawal S, Patel H, Badiger A, Gaba M, Zambre A. Synthesis, antimicrobial and cytotoxic activity of novel azetidine-2-one derivatives of 1H-benzimidazole. ARAB J CHEM 2014. [DOI: 10.1016/j.arabjc.2011.02.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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31
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Desai NC, Kotadiya GM. Microwave-assisted synthesis of benzimidazole bearing 1,3,4-oxadiazole derivatives: screening for their in vitro antimicrobial activity. Med Chem Res 2014. [DOI: 10.1007/s00044-014-0978-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Whalen KL, Chau AC, Spies MA. In silico optimization of a fragment-based hit yields biologically active, high-efficiency inhibitors for glutamate racemase. ChemMedChem 2013; 8:1681-9. [PMID: 23929705 PMCID: PMC4040332 DOI: 10.1002/cmdc.201300271] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Indexed: 11/06/2022]
Abstract
A novel lead compound for inhibition of the antibacterial drug target, glutamate racemase (GR), was optimized for both ligand efficiency and lipophilic efficiency. A previously developed hybrid molecular dynamics-docking and scoring scheme, FERM-SMD, was used to predict relative potencies of potential derivatives prior to chemical synthesis. This scheme was successful in distinguishing between high- and low-affinity binders with minimal experimental structural information, saving time and resources in the process. In vitro potency was increased approximately fourfold against GR from the model organism, B. subtilis. Lead derivatives show two- to fourfold increased antimicrobial potency over the parent scaffold. In addition, specificity toward B. subtilis over E. coli and S. aureus depends on the substituent added to the parent scaffold. Finally, insight was gained into the capacity for these compounds to reach the target enzyme in vivo using a bacterial cell wall lysis assay. The outcome of this study is a novel small-molecule inhibitor of GR with the following characteristics: Ki=2.5 μM, LE=0.45 kcal mol(-1) atom(-1), LiPE=6.0, MIC50=260 μg mL(-1) against B. subtilis, EC50, lysis=520 μg mL(-1) against B. subtilis.
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Affiliation(s)
- Katie L. Whalen
- Dr. M. A. Spies Ms. K. L. Whalen Div. of Medicinal and Natural Products Chemistry, Dept. of Biochemistry University of Iowa 115 S. Grand Avenue, Iowa City, IA 52242
- Ms. K. L. Whalen Mr. A. Chau Department of Biochemistry University of Illinois at Urbana-Champaign 600 S. Mathews Avenue, Urbana, IL 61801
| | - Anthony C. Chau
- Ms. K. L. Whalen Mr. A. Chau Department of Biochemistry University of Illinois at Urbana-Champaign 600 S. Mathews Avenue, Urbana, IL 61801
| | - M. Ashley Spies
- Dr. M. A. Spies Ms. K. L. Whalen Div. of Medicinal and Natural Products Chemistry, Dept. of Biochemistry University of Iowa 115 S. Grand Avenue, Iowa City, IA 52242
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Crystal structure of 1-methyl-5-(trifluoromethyl)-1H-benzo[d]imidazole- 2(3H)-thione, C9H7F3N2S. Z KRIST-NEW CRYST ST 2013. [DOI: 10.1524/ncrs.2013.0090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract C9H7F3N2S, monoclinic, P21/c (no. 14), a = 8.695(4) Å, b = 4.676(2) Å, c = 24.13(1) Å, β = 97.861(4)°, V = 972.0 Å3, Z = 4, Rgt(F) = 0.0386, wRref(F2) = 0.1074, T = 296 K.
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Design, synthesis and antiproliferative properties of some new 5-substituted-2-iminobenzimidazole derivatives. Eur J Med Chem 2013; 63:696-701. [DOI: 10.1016/j.ejmech.2013.03.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 03/03/2013] [Accepted: 03/05/2013] [Indexed: 11/23/2022]
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Shobana S, Dharmaraja J, Selvaraj S. Mixed ligand complexation of some transition metal ions in solution and solid state: spectral characterization, antimicrobial, antioxidant, DNA cleavage activities and molecular modeling. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 107:117-132. [PMID: 23416916 DOI: 10.1016/j.saa.2013.01.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 12/27/2012] [Accepted: 01/10/2013] [Indexed: 06/01/2023]
Abstract
Equilibrium studies of Ni(II), Cu(II) and Zn(II) mixed ligand complexes involving a primary ligand 5-fluorouracil (5-FU; A) and imidazoles viz., imidazole (him), benzimidazole (bim), histamine (hist) and L-histidine (his) as co-ligands(B) were carried out pH-metrically in aqueous medium at 310±0.1K with I=0.15 M (NaClO4). In solution state, the stoichiometry of MABH, MAB and MAB2 species have been detected. The primary ligand(A) binds the central M(II) ions in a monodentate manner whereas him, bim, hist and his co-ligands(B) bind in mono, mono, bi and tridentate modes respectively. The calculated ΔlogK, logX and logX' values indicate higher stability of the mixed ligand complexes in comparison to binary species. Stability of the mixed ligand complex equilibria follows the Irving-Williams order of stability. In vitro biological evaluations of the free ligand(A) and their metal complexes by well diffusion technique show moderate activities against common bacterial and fungal strains. Oxidative cleavage interaction of ligand(A) and their copper complexes with CT DNA is also studied by gel electrophoresis method in the presence of oxidant. In vitro antioxidant evaluations of the primary ligand(A), CuA and CuAB complexes by DPPH free radical scavenging model were carried out. In solid, the MAB type of M(II)5-FU(A)his(B) complexes were isolated and characterized by various physico-chemical and spectral techniques. Both the magnetic susceptibility and electronic spectral analysis suggest distorted octahedral geometry. Thermal studies on the synthesized mixed ligand complexes show loss of coordinated water molecule in the first step followed by decomposition of the organic residues subsequently. XRD and SEM analysis suggest that the microcrystalline nature and homogeneous morphology of MAB complexes. Further, the 3D molecular modeling and analysis for the mixed ligand MAB complexes have also been carried out.
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Affiliation(s)
- Sutha Shobana
- Department of Chemistry, Government Arts College (Men), Nandanam, Chennai 600 035, Tamil Nadu, India
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36
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Xu J, Li J, Wei Z, Zhang Q, Shi D. Direct amination of azoles using CuCl2 complexes of amines under mild conditions. RSC Adv 2013. [DOI: 10.1039/c3ra41496e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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37
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Bansal Y, Silakari O. The therapeutic journey of benzimidazoles: a review. Bioorg Med Chem 2012; 20:6208-36. [PMID: 23031649 DOI: 10.1016/j.bmc.2012.09.013] [Citation(s) in RCA: 519] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 09/07/2012] [Accepted: 09/07/2012] [Indexed: 01/03/2023]
Abstract
Presence of benzimidazole nucleus in numerous categories of therapeutic agents such as antimicrobials, antivirals, antiparasites, anticancer, anti-inflammatory, antioxidants, proton pump inhibitors, antihypertensives, anticoagulants, immunomodulators, hormone modulators, CNS stimulants as well as depressants, lipid level modulators, antidiabetics, etc. has made it an indispensable anchor for development of new therapeutic agents. Varied substitutents around the benzimidazole nucleus have provided a wide spectrum of biological activities. Importance of this nucleus in some activities like, Angiotensin I (AT(1)) receptor antagonism and proton-pump inhibition is reviewed separately in literature. Even some very short reviews on biological importance of this nucleus are also known in literature. However, owing to fast development of new drugs possessing benzimidazole nucleus many research reports are generated in short span of time. So, there is a need to couple the latest information with the earlier information to understand the current status of benzimidazole nucleus in medicinal chemistry research. In the present review, various derivatives of benzimidazole with different pharmacological activities are described on the basis of substitution pattern around the nucleus with an aim to help medicinal chemists for developing an SAR on benzimidazole derived compounds for each activity. This discussion will further help in the development of novel benzimidazole compounds.
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Affiliation(s)
- Yogita Bansal
- Molecular Modelling Lab, Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
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38
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Özdemir N. Structural and spectroscopic characterization of 2-mesityl-1H-benzo[d]imidazol-3-ium chloride: a combined experimental and theoretical analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 91:51-60. [PMID: 22366614 DOI: 10.1016/j.saa.2012.01.069] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Accepted: 01/27/2012] [Indexed: 05/31/2023]
Abstract
The title molecular salt, 2-mesityl-1H-benzo[d]imidazol-3-ium chloride (C(16)H(17)N(2)(+)·Cl-), was synthesized unexpectedly from the reaction of N-[(1E)-mesitylmethylene]benzene-1,2-diamine and CoCl(2)·6H(2)O, and characterized by elemental analysis, (1)H NMR and FT-IR spectroscopies, and single-crystal X-ray diffraction technique. In addition, quantum chemical calculations employing density functional theory (DFT) method with the 6-311++G(d,p) basis set were performed to study the molecular, spectroscopic and some electronic structure properties of the title compound, and the results were compared with the experimental findings. The computational result shows that the optimized geometry can well reproduce the crystal structural parameters. The intermolecular proton transfer process between the ionic (C(16)H(17)N(2)(+)·Cl-) and nonionic forms (C(16)H(16)N(2)·HCl) of the title salt is investigated and found to be almost barierless with an energy value of 0.20 kcal mol(-1). The NLO properties of the compound are bigger than those of urea.
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Affiliation(s)
- Namık Özdemir
- Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, 55139 Kurupelit, Samsun, Turkey.
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39
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Roopashree B, Gayathri V, Mukund H. Synthesis, characterization, and biological activities of zinc, cadmium, copper, and nickel complexes containing meta -aminophenyl benzimidazole. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.673123] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- B. Roopashree
- a Department of Chemistry , Central College Campus, Bangalore University , Bangalore 560 001 , India
| | - V. Gayathri
- a Department of Chemistry , Central College Campus, Bangalore University , Bangalore 560 001 , India
| | - H. Mukund
- b Department of Pharmacology , PES College of Pharmacy , Bangalore 560 050 , India
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40
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Desai NC, Pandya DD, Joshi VV, Rajpara KM, Vaghani HV, Satodiya HM. Synthesis, characterization and antimicrobial screening of hybrid molecules containing benzimidazole-pyrazole and pyridine nucleus. Med Chem Res 2012. [DOI: 10.1007/s00044-012-9990-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Desai NC, Dodiya AM, Makwana AH. Antimicrobial screening of novel synthesized benzimidazole nucleus containing 4-oxo-thiazolidine derivatives. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9752-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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42
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Synthesis, characterization and cytotoxicity of some novel 1,3-disubstituted-2,3-dihydro-2-iminobenzimidazoles. Eur J Med Chem 2011; 46:3362-7. [DOI: 10.1016/j.ejmech.2011.04.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2011] [Revised: 04/25/2011] [Accepted: 04/27/2011] [Indexed: 01/29/2023]
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43
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Sondhi SM, Rani R, Roy P, Agrawal SK, Saxena AK. Synthesis, anti-inflammatory, and anticancer activity evaluation of some heterocyclic amidine and bis-amidine derivatives. J Heterocycl Chem 2011. [DOI: 10.1002/jhet.658] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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Synthesis and biological activity of some triazole-bearing benzimidazole derivatives. JOURNAL OF THE SERBIAN CHEMICAL SOCIETY 2011. [DOI: 10.2298/jsc100301029a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A number of N'-[(aryl)methylidene]-2-(2-methyl-1H-benzimidazol-
1-yl)acetohydrazide and 4-(aryl)-5-[(2-methyl-1H-benzimidazol-
1-yl)methyl]-4H-1,2,4-triazole-3-thiol derivatives were synthesized by
incorporating various aromatic and heterocyclic substituents on
2-methyl-1H-benzimidazole. The structures of all the synthesized compounds
were elucidated based on their elemental analyses and spectral data. The in
vitro activities of these compounds against bacteria and fungi were evaluated
by the disc diffusion and the minimum inhibitory concentration (MIC) methods.
Some of the synthesized derivatives were found to be as active as kanamycin
(standard drug).
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45
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Mavrova AT, Vuchev D, Anichina K, Vassilev N. Synthesis, antitrichinnellosis and antiprotozoal activity of some novel thieno[2,3-d]pyrimidin-4(3H)-ones containing benzimidazole ring. Eur J Med Chem 2010; 45:5856-61. [PMID: 20950896 DOI: 10.1016/j.ejmech.2010.09.050] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 09/20/2010] [Accepted: 09/21/2010] [Indexed: 10/19/2022]
Abstract
Some novel thieno[2,3-d]pyrimidin-4(3H)-ones containing benzimidazol-2-yl-thioethyl- and benzimidazol-2-yl-methanethioethyl moiety in second position of the pyrimidine ring were synthesized in order to determine their antitrichinellosis and antiprotozoal effects. The structures of the compounds were confirmed by IR, (1)H NMR and elemental analysis. The antiparasitic screening showed that the benzimidazole derivatives of thieno[2,3-d]pyrimidin-4(3H)-ones exhibited higher activity against Trichinella spiralis in vitro in comparison albendazole. The most active compound, 2-[2-(5-nitro-1H-benzimidazol-1-yl)ethyl]-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one 22 revealed 95% activity at a dosage of 5 mg/kg mw after 24 h, while compounds 8 and 10 applied at the same dose showed efficacy of 90% after 48 h. The compound 2-{2-[(5(6)-nitro-1H-benzimidazol-2-yl)thio]ethyl}-5,6,7,8-tetrahydro[1]-benzothieno[2,3-d]pyrimidin-4(3H)-one 11 exhibited 90% efficacy after 24 h. The pharmaco-therapeutic study in vivo on invaded with Lamblia muris white mice showed 100% effectiveness of the compounds 8, 10, 11, 13-15 and 22, 23 after five-days-treatment course.
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Affiliation(s)
- Anelia Ts Mavrova
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8Kliment Ohridski Blvd., 1756 Sofia, Bulgaria.
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46
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Özdemir N, Eren B, Dinçer M, Bekdemir Y. Experimental and ab initio computational studies on 4-(1H-benzo[d]imidazol-2-yl)-N,N-dimethylaniline. Mol Phys 2010. [DOI: 10.1080/00268970903476688] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Namık Özdemir
- a Department of Physics, Faculty of Arts and Sciences , Ondokuz Mayıs University , 55139 Kurupelit, Samsun, Turkey
| | - Bilge Eren
- b Department of Chemistry, Faculty of Arts and Sciences , Ondokuz Mayıs University , 55139 Kurupelit, Samsun, Turkey
| | - Muharrem Dinçer
- a Department of Physics, Faculty of Arts and Sciences , Ondokuz Mayıs University , 55139 Kurupelit, Samsun, Turkey
| | - Yunus Bekdemir
- b Department of Chemistry, Faculty of Arts and Sciences , Ondokuz Mayıs University , 55139 Kurupelit, Samsun, Turkey
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47
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Synthesis and biological activity of some heterocyclic compounds containing benzimidazole and beta-lactam moiety. J CHEM SCI 2009. [DOI: 10.1007/s12039-009-0114-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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48
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Deng X, McAllister H, Mani NS. CuI-catalyzed amination of arylhalides with guanidines or amidines: a facile synthesis of 1-H-2-substituted benzimidazoles. J Org Chem 2009; 74:5742-5. [PMID: 19527012 DOI: 10.1021/jo900912h] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
CuI/L5 (N,N'-dimethylethylenediamine) proves to be an efficient catalyst system for the amination of arylhalides with guanidines. The same catalyst system is then successfully applied to the one-step synthesis of 1-H-2-amino-benzimidazoles through tandem aminations of 1,2-dihaloarenes in modest yields. This methodology is also applicable for the preparation of 1-H or 1-substutituted 2-aryl- or 2-alkyl-benzimidazoles.
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Affiliation(s)
- Xiaohu Deng
- Johnson & Johnson Pharmaceutical Research & Development, LLC 3210 Merryfield Row, San Diego, California 92121, USA.
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49
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Cytotoxic activity, X-ray crystal structures and spectroscopic characterization of cobalt(II), copper(II) and zinc(II) coordination compounds with 2-substituted benzimidazoles. J Inorg Biochem 2009; 103:1204-13. [DOI: 10.1016/j.jinorgbio.2009.05.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 05/29/2009] [Accepted: 05/29/2009] [Indexed: 02/07/2023]
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50
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Wang DC, Mi S, Xu W, Jiang L, Huang XM. 1H-Benzimidazole-2(3H)-thione. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o756. [PMID: 21582487 PMCID: PMC2968823 DOI: 10.1107/s1600536809008058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Accepted: 03/05/2009] [Indexed: 11/10/2022]
Abstract
The asymmetric unit of the title compound, C7H6N2S, contains one half-molecule; the C and S atoms of the C=S group lie on a crystallographic mirror plane. In the crystal structure, intermolecular N—H⋯S hydrogen bonds link the molecules.
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