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Rajagopal K, Dhandayutham S, Nandhagopal M, Narayanasamy M. Study on new series of bis-benzimidazole derivatives synthesis, characterization, single crystal XRD, biological activity and molecular docking. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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2
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Sabithakala T, Reddy CVR. DNA-binding, cleavage, antibacterial and in vitro anticancer activity of copper(II) mixed ligand complexes of 2-(((6-chloro-1H-benzo[d]imidazol-2-yl)methyl)amino)aceticacid and polypyridyl ligands. J Biomol Struct Dyn 2023; 41:1309-1321. [PMID: 34963412 DOI: 10.1080/07391102.2021.2019121] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A tridentate ligand(A), 2-(((6-chloro-1H-benzo[d]imidazol-2-yl)methyl)amino) aceticacid (Cl-BIGH) was synthesised by the Phillips condensation of 4-chlorobenzene-1,2-diamine and iminodiaceticacid in 1:2 molar ratio. Its Cu(II) mixed ligand complexes[Cu(II)-A-L] were obtained by involving other co-ligands(L): 2,2΄-bipyridine(L1), 4,4΄-dimethyl-2,2΄-bipyridyl(L2), 5,5΄-dimethyl-2,2΄-bipyridyl(L3) and 1,10 phenanthroline(L4). The complexes were characterized by elemental analysis, thermal analysis, molar conductance, magnetic moment measurements, X-ray diffraction, FTIR, UV-Visible, ESR spectroscopy, mass spectrometry and cyclic voltammetry. From the spectral and analytical data, the ternary complexes [Cu(Cl-BIGH)(L1-4)]ClO4 were found to form in 1:1:1(Cu(II): Cl-BIGH: L) molar ratio. The geometry of the mixed-ligand complexes were found to be 5-coordinated square pyramidal or trigonal bipyramidal with polycrystalline natures. The DNA binding and cleaving abilities, antibacterial and the in vitro cytotoxicity of the complexes were explored. The molecular docking was used to predict the efficiency of binding of the metal complexes with COX- 2.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Thatituri Sabithakala
- Department of Chemistry, Jawaharlal Nehru Technological University Hyderabad, Hyderabad, India
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3
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Alizadeh A, Bagherinejad A, Kayanian J. 1,3‐Dimethylbarbituric Acid Promoted Metal‐Free Cascade Annulation for Straightforward Access to Benzimidazole‐Fused Heterocycles. ChemistrySelect 2022. [DOI: 10.1002/slct.202200762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Abdolali Alizadeh
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
| | - Akram Bagherinejad
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
| | - Jasmine Kayanian
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
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4
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Sobhani M, Villinger A, Ehlers P, Langer P. Regioselective Synthesis of Naphthothiophenes by Pd Catalyzed Cross-Coupling Reactions and Alkyne-Carbonyl Metathesis. J Org Chem 2022; 87:4560-4568. [PMID: 35275622 DOI: 10.1021/acs.joc.1c02838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Naphthothiophenes were prepared from commercially available 2,3-dibromothiophenes in two steps by one-pot Suzuki/Sonogashira or Sonogashira/Suzuki coupling reactions, followed by intramolecular alkyne-carbonyl-metathesis reactions. The final cyclization reaction proceeds in the presence of p-toluenesulfonic acid and provides a rapid access to two series of isomeric naphthothiophenes.
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Affiliation(s)
- Maryam Sobhani
- Institut für Chemie, Universität Rostock, A.-Einstein-Str. 3a, 18059 Rostock, Germany
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, A.-Einstein-Str. 3a, 18059 Rostock, Germany
| | - Peter Ehlers
- Institut für Chemie, Universität Rostock, A.-Einstein-Str. 3a, 18059 Rostock, Germany.,Leibniz Institut für Katalyse, Universität Rostock, A.-Einstein-Str.29 a, 18059 Rostock, Germany
| | - Peter Langer
- Institut für Chemie, Universität Rostock, A.-Einstein-Str. 3a, 18059 Rostock, Germany.,Leibniz Institut für Katalyse, Universität Rostock, A.-Einstein-Str.29 a, 18059 Rostock, Germany
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5
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Uppalapati DS, Dachuru RSR, Sunkara SV. Silica sulfuric acid mediated synthesis of naphtho[2,1‐
b
]furan derivatives and development of
one‐pot
multicomponent synthesis of substituted pyrazole derivatives. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Divya Sree Uppalapati
- Department of Chemistry University College of Engineering Kakinada, Jawaharlal Nehru Technological University Kakinada Kakinada India
| | | | - Satya Veni Sunkara
- Department of Chemistry University College of Engineering Kakinada, Jawaharlal Nehru Technological University Kakinada Kakinada India
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6
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Ban Ž, Griesbeck S, Tomić S, Nitsch J, Marder TB, Piantanida I. A Quadrupolar Bis-Triarylborane Chromophore as a Fluorimetric and Chirooptic Probe for Simultaneous and Selective Sensing of DNA, RNA and Proteins. Chemistry 2020; 26:2195-2203. [PMID: 31756013 PMCID: PMC7065195 DOI: 10.1002/chem.201903936] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/21/2019] [Indexed: 12/29/2022]
Abstract
A water-soluble tetracationic quadrupolar bis-triarylborane chromophore showed strong binding to ds-DNA, ds-RNA, ss-RNA, as well as to the naturally most abundant protein, BSA. The novel dye can distinguish between DNA/RNA and BSA by fluorescence emission separated by Δ ν ˜ =3600 cm-1 , allowing for the simultaneous quantification of DNA/RNA and protein (BSA) in a mixture. The applicability of such fluorimetric differentiation in vitro was demonstrated, strongly supporting a protein-like target as a dominant binding site of 1 in cells. Moreover, our dye also bound strongly to ss-RNA, with the unusual rod-like structure of the dye, decorated by four positive charges at its termini and having a hydrophobic core, acting as a spindle for wrapping A, C and U ss-RNAs, but not poly G, the latter preserving its secondary structure. To the best of our knowledge, such unmatched, multifaceted binding activity of a small molecule toward DNA, RNA, and proteins and the selectivity of its fluorimetric and chirooptic response makes the quadrupolar bis-triarylborane a novel chromophore/fluorophore moiety for biochemical applications.
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Affiliation(s)
- Željka Ban
- Division of Organic Chemistry and BiochemistryRuder Boškovic InstituteZagrebCroatia
| | - Stefanie Griesbeck
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg97074WürzburgGermany
| | - Sanja Tomić
- Division of Organic Chemistry and BiochemistryRuder Boškovic InstituteZagrebCroatia
| | - Jörn Nitsch
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg97074WürzburgGermany
| | - Todd B. Marder
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg97074WürzburgGermany
| | - Ivo Piantanida
- Division of Organic Chemistry and BiochemistryRuder Boškovic InstituteZagrebCroatia
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7
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Karaaslan C. Synthesis and Structure Elucidation of New Benzimidazole Amidoxime Derivatives. Turk J Pharm Sci 2020; 17:108-114. [PMID: 32454768 DOI: 10.4274/tjps.galenos.2019.44270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 12/16/2019] [Indexed: 12/01/2022]
Abstract
OBJECTIVES In our previous studies we synthesized some potent antiparasitic, anticancer and antimicrobial amidine derivatives. Despite all their potent activities, it is well known that due to their cationic charge, amidine derivatives pose a serious problem in terms of bioavailability. The main purpose of this study is to prepare amidoxime derivatives of previously synthesized potent amidine derivatives as prodrugs in order to increase their bioavailabilities. MATERIALS AND METHODS The targeted benzimidazole amidoximes were synthesized from their nitrile derivatives. The nitrile groups of these benzimidazole carbonitriles were converted to N-hydroxy benzamidine derivatives (amidoxime derivatives, 20-29) in the presence of NH2OH.HCI and KO-t-Bu in dimethyl sulfoxide. Structures of newly synthesized amidoxime derivatives were elucidated with 1H-NMR, 13C-NMR and some 2D NMR techniques like COSY, NOESY, HSQC and HMBC. RESULTS A new series of benzimidazole amidoximes were synthesized and their structural elucidations were done in this study. CONCLUSION In order to solve the potential bioavailability problem of potent amidine derivatives, we prepared the prodrugs of those potent amidine derivatives as their amidoxime derivatives. In vivo studies of both previous amidine derivatives and amidoxime prodrugs of those amidines which were synthesized in this study are planned to perform in our ongoing studies.
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Affiliation(s)
- Cigdem Karaaslan
- Ankara University Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Ankara, Turkey
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8
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Đud M, Glasovac Z, Margetić D, Piantanida I. Guanidino-aryl derivatives: protonation and structure tuning for spectrophotometric recognition of ds-DNA and ds-RNA. NEW J CHEM 2020. [DOI: 10.1039/d0nj01879a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fine interplay between protonation of guanidine and size of Aryl controls DNA/RNA recognition and fluorimetric or CD response.
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Affiliation(s)
- Mateja Đud
- Laboratory for Physical Organic Chemistry
- Division of Organic Chemistry & Biochemistry
- Ruđer Bošković Institute
- HR 10002 Zagreb
- Croatia
| | - Zoran Glasovac
- Laboratory for Physical Organic Chemistry
- Division of Organic Chemistry & Biochemistry
- Ruđer Bošković Institute
- HR 10002 Zagreb
- Croatia
| | - Davor Margetić
- Laboratory for Physical Organic Chemistry
- Division of Organic Chemistry & Biochemistry
- Ruđer Bošković Institute
- HR 10002 Zagreb
- Croatia
| | - Ivo Piantanida
- Laboratory for Biomolecular Interactions and Spectroscopy
- Division of Organic Chemistry & Biochemistry, Ruđer Bošković Institute
- HR 10002 Zagreb
- Croatia
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9
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Nasir MH, Jabeen E, Qureshi R, Ansari FL, Shaukat A, Nasir U, Ahmed A. Investigation of redox mechanism and DNA binding of novel 2-(x-nitrophenyl)-5-nitrobenzimidazole (x = 2, 3 and 4). Biophys Chem 2019; 258:106316. [PMID: 31986436 DOI: 10.1016/j.bpc.2019.106316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/11/2019] [Accepted: 12/13/2019] [Indexed: 02/08/2023]
Abstract
The present study describes the investigation of the binding modes of potential anti-cancerous nitrophenyl derivatives of 2-(x-nitrophenyl)-5-nitrobenzimidazole with calf thymus DNA. The -2-(x-nitrophenyl)-5-nitrobenzimidazoles under investigation differ only in position x of nitro group in nitrophenyl substituent relative to benzimidazole moiety leading to 1-NPNB (x = 2), 2-NPNB (x = 3) and 3-NPNB (x = 4). The DFT calculations predicted that derivatives were electrochemically reducible which was then confirmed by cyclic voltammetry. In cyclic voltammetry, the second reversible peak was dependent on first irreversible reduction. This revealed that electrochemical irreversible process was governed by some other process which was then followed by reversible second electron transfer. Thus, ECE (electron transfer leading to coupled chemical reaction followed by another electron transfer process) mechanism was attributed for electrochemical reduction. Experimental results based on UV-Vis spectroscopy vaguely showed intercalation of 1-NPNB, 2-NPNB and 3-NPNB into DNA which was assisted by cyclic voltammetry. However, thermal melting and florescence spectroscopy unambiguously established intercalation for all three compounds. Molecular docking analysis ascertained in pocket stacking of 5-nitrobenzimidazole moiety in 1-NPNB and 2-NPNB while nitro phenyl substitution in 3-NPNB stacks between DNA base pair during intercalation which was in agreement with DFT computed molecular geometry. Therefore, the relative positions of nitro group and 5-nitrobenzimidazole moieties in 2-(x-nitrophenyl)- 5-nitrobenzimidazole influenced the DNA binding pattern of compounds during intercalation. The cytotoxicity of these compounds was comparable to standard drug doxorubicin against both cancerous (MCF-7) and normal (MCF-10A) breast cells which depicts their anti-cancerous potential.
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Affiliation(s)
- Mehwish H Nasir
- Department of Chemistry, Quaid-i-Azam University, 45320 Islamabad, Pakistan
| | - Erum Jabeen
- Department of Chemistry, Faculty of Sciences, Allama Iqbal Open University, 44000 Islamabad, Pakistan.
| | - Rumana Qureshi
- Department of Chemistry, Quaid-i-Azam University, 45320 Islamabad, Pakistan
| | - Farzana L Ansari
- Department of Chemistry, Quaid-i-Azam University, 45320 Islamabad, Pakistan
| | - Awais Shaukat
- Department of Chemistry, Quaid-i-Azam University, 45320 Islamabad, Pakistan
| | - Usman Nasir
- Department of Electrical Engineering, COMSAT Institute of IT, Islamabad, Pakistan.
| | - Aftab Ahmed
- Department of Science Education, Faculty of Education, Iqbal Open University, Islamabad, Pakistan
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10
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Wang C, Han Y, Li M, Zhou X, Kong L, Li Y. Palladium-Catalyzed Allenylation/6π-Electrocyclization and 1,3-Hydrogen Migration: an Access to Naphtho[1,2-b
]furans. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Chengyu Wang
- School of Chemistry and Chemical Engineering; Linyi University; The middle of Shuangling Road 276000 Linyi Shandong China
| | - Yu Han
- School of Chemistry and Chemical Engineering; Linyi University; The middle of Shuangling Road 276000 Linyi Shandong China
| | - Mengyuan Li
- School of Chemistry and Chemical Engineering; Linyi University; The middle of Shuangling Road 276000 Linyi Shandong China
| | - Xuemei Zhou
- School of Chemistry and Chemical Engineering; Linyi University; The middle of Shuangling Road 276000 Linyi Shandong China
| | - Lingkai Kong
- School of Chemistry and Chemical Engineering; Linyi University; The middle of Shuangling Road 276000 Linyi Shandong China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dong-chuan Road 200241 Shanghai China
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11
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Fonkui TY, Ikhile MI, Njobeh PB, Ndinteh DT. Benzimidazole Schiff base derivatives: synthesis, characterization and antimicrobial activity. BMC Chem 2019; 13:127. [PMID: 31728454 PMCID: PMC6842205 DOI: 10.1186/s13065-019-0642-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/19/2019] [Indexed: 12/26/2022] Open
Abstract
A series of Schiff bases (3.a–f) bearing benzimidazole moiety was successfully synthesized in ethanol by refluxing Oct-2-ynoic acid (1,3-dihydrobenzimidazole-2-ylidene)amide with substituted amines. Fourier transform infrared (FTIR), ultra violet light (UV–VIS), elemental analysis, proton (1H) and carbon (13C) nuclear magnetic resonance spectroscopy were used to characterize the newly synthesized Schiff bases. Micro dilution method was used to determine the minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) of the Schiff bases, against 14 human pathogenic bacteria (8 Gram negative and 6 Gram positive) and against 7 fungal strains (5 Aspergillus and 2 Fusarium) representatives. Antimalarial activity against Plasmodium falciparum and antitrypanosomal property against Trypanosoma brucei was studied in vitro at a single dose concentration of the Schiff bases. Cytotoxicity of the Schiff bases was assessed against human cervix adenocarcinoma (HeLa) cells. Results obtained show that the newly synthesized Schiff bases are very potent antimicrobial agents. Gram negative bacteria Klebsiella pneumonia and Escherichia coli were more affected on exposure to Compounds 3.c–f (MIC 7.8 µg/mL) which in turn exhibited more antibacterial potency than nalidixic acid reference drug that displayed MICs between 64 and 512 µg/mL against K. pneumonia and E. coli respectively. The test compounds also demonstrated high cytotoxic effect against Aspergillus flavus and Aspergillus carbonarius as they displayed MFC 7.8 and 15.6 µg/mL. Compound 3.c exhibited the highest fungicidal property from this series with MFC alternating between 7.8 and 15.6 µg/mL against the investigated strains. The malarial activity revealed Compounds 3.c and 3.d as the more potent antiplasmodial compounds in this group exhibiting 95% and 85% growth inhibition respectively. The IC50 of Compounds 3.c and 3.d were determined and found to be IC50 26.96 and 28.31 µg/mL respectively. Compound 3.a was the most cytotoxic agent against HeLa cells in this group with 48% cell growth inhibition. Compounds 3.c, 3.d and 3.f were biocompatible with HeLa cells and displayed low toxicity. With a very low cytotoxic effect against HeLa, compound 3.c stands out to be a very good antiparasitic agent and consideration to further evaluate the candidate drug against others cell lines is necessary.
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Affiliation(s)
- Thierry Youmbi Fonkui
- 1Department of Biotechnology and Food Technology, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028 South Africa
| | - Monisola Itohan Ikhile
- 2Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028 South Africa
| | - Patrick Berka Njobeh
- 1Department of Biotechnology and Food Technology, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028 South Africa
| | - Derek Tantoh Ndinteh
- 2Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028 South Africa
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Shankar B, Jalapathi P, Saikrishna B, Perugu S, Manga V. Synthesis, anti-microbial activity, cytotoxicity of some novel substituted (5-(3-(1H-benzo[d]imidazol-2-yl)-4-hydroxybenzyl)benzofuran-2-yl)(phenyl)methanone analogs. Chem Cent J 2018; 12:1. [PMID: 29318401 PMCID: PMC5760494 DOI: 10.1186/s13065-017-0364-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 12/13/2017] [Indexed: 12/18/2022] Open
Abstract
Background There is a dire need for the discovery and development of new antimicrobial agents after several experiments for a better resistance of microorganisms towards antimicrobial agents become a serious health problem for a few years in the past. As benzimidazole possess various types of biological activities, it has been synthesized, in the present study, a new series of (5-(3-(1H-benzo[d]imidazol-2-yl)-4-hydroxybenzyl)benzofuran-2-yl)(phenyl)methanone analogs by using the condensation and screened for its in vitro antimicrobial activity and cytotoxicity. Results The synthesized (5-(3-(1H-benzo[d]imidazol-2-yl)-4-hydroxybenzyl) benzofuran-2-yl)(phenyl)methanone analogs were confirmed by IR, 1H and 13C-NMR, MS spectra and HRMS spectral data. The synthesized compounds were evaluated for their in vitro antimicrobial potential against Gram-positive (Bacillus subtilis, Bacillus megaterium, Staph aureus and Streptococcus pyogenes), Gram-negative (Escherichia coli, Proteus vulgaris, Proteus mirabilis and Enterobacter aerogenes) bacterial and fungal (Aspergillus niger, Candida albicans, Fusarium oxysporum, Fusarium solani) strains by disc diffusion method and the minimum inhibitory concentration (MIC) in which it has been recorded in microgram per milliliter in comparison to the reference drugs, ciprofloxacin (antibacterial) and nystatin (antifungal). Further, the cytotoxicity (IC50 value) has also been assessed on human cervical (HeLa), Supt1 cancer cell lines by using MTT assay. Conclusions The following screened compounds (4d), (4f), (4g), (4k), (4l), (4o) and (4u) were found to be the best active against all the tested bacterial and fungal strains among all the demonstrated compounds of biological study. The MIC determination was also carried out against bacteria and fungi, the compounds (4f) and (4u) are found to be exhibited excellent potent against bacteria and fungi respectively. The compounds (4f) and (4u) were shown non-toxic in nature after screened for cytotoxicity against the cancer cell lines of human cervical (HeLa) and Supt1. Additionally, structure and antibacterial activity relationship were also further supported by in silico molecular docking studies of the active compounds against DNA topoisomerase.![]() Electronic supplementary material The online version of this article (10.1186/s13065-017-0364-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Bhookya Shankar
- Department of Chemistry, University College of Science, Osmania University, Hyderabad, Telangana, India
| | - Pochampally Jalapathi
- Department of Chemistry, University College of Science, Osmania University, Hyderabad, Telangana, India.
| | - Balabadra Saikrishna
- Molecular Modelling and Medicinal Chemistry Group, Department of Chemistry, Osmania University, Hyderabad, Telangana, India
| | - Shaym Perugu
- Biomedical Informatics Centre, National Institute of Nutrition, Hyderabad, Telangana, India
| | - Vijjulatha Manga
- Molecular Modelling and Medicinal Chemistry Group, Department of Chemistry, Osmania University, Hyderabad, Telangana, India
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Karaaslan C, Bakar F, Goker H. Antiproliferative activity of synthesized some new benzimidazole carboxamidines against MCF-7 breast carcinoma cells. ACTA ACUST UNITED AC 2017; 73:137-145. [DOI: 10.1515/znc-2017-0067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/20/2017] [Indexed: 11/15/2022]
Abstract
Abstract
Breast cancer is the most endemic cause of cancer among women in both developed and developing countries. Benzimidazole derivatives exemplify one of the chemical classes that show strong cytotoxic activity especially against breast cancer cells (MCF-7). Aromatic amidine derivatives are known as a group of DNA interactive compounds that bind minor groove of the genome, especially A-T base pairs, and show significant in vitro and in vivo toxicity toward cancer cells. In light of these studies, some new mono/dicationic amidino benzimidazole derivatives were synthesized and evaluated for cytotoxic activity on cultured MCF-7 breast cancer cells. Some of these compounds have strongly inhibited MCF-7 cell viability in a dose-dependent manner compared with clinically used reference compounds, imatinib mesylate and docetaxel. Among them, 4-[(5(6)-bromo-1H-benzimidazole-2-yl)amino]benzene-1-carboxamidine (30) showed the best inhibitory activity with IC50 value of 4.6 nM.
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Affiliation(s)
- Cigdem Karaaslan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Ankara University , 06100 Tandogan , Ankara, Turkey
| | - Filiz Bakar
- Department of Biochemistry, Faculty of Pharmacy , Ankara University , 06100 Tandogan , Ankara, Turkey
| | - Hakan Goker
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Ankara University , 06100 Tandogan , Ankara, Turkey
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14
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Pirwerdjan R, Becker P, Bolm C. Exploring the Reactivity of N-Alkynylated Sulfoximines: Acid-Catalyzed Cyclizations. Org Lett 2016; 18:3307-9. [DOI: 10.1021/acs.orglett.6b01646] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Ramona Pirwerdjan
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Peter Becker
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Carsten Bolm
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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15
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Zheng H, Wang B, Zhang J, Liao J, Peng Y. Catalyst-Free Synthesis of 1-Phenylnaphtho[2,1-b]furan Derivatives under Microwave Irradiation. HETEROCYCLES 2016. [DOI: 10.3987/com-16-13487] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Sović I, Viskić M, Bertoša B, Ester K, Kralj M, Hranjec M, Karminski-Zamola G. Exploring antiproliferative activity of heteroaromatic amides and their fused derivatives using 3D-QSAR, synthesis, and biological tests. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1478-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Roopashree R, Mohan CD, Swaroop TR, Jagadish S, Raghava B, Balaji KS, Jayarama S, Basappa, Rangappa KS. Novel synthetic bisbenzimidazole that targets angiogenesis in Ehrlich ascites carcinoma bearing mice. Bioorg Med Chem Lett 2015; 25:2589-93. [DOI: 10.1016/j.bmcl.2015.04.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/16/2015] [Accepted: 04/01/2015] [Indexed: 01/03/2023]
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18
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Iitsuka T, Hirano K, Satoh T, Miura M. Rhodium-catalyzed dehydrogenative coupling of phenylheteroarenes with alkynes or alkenes. J Org Chem 2015; 80:2804-14. [PMID: 25686408 DOI: 10.1021/acs.joc.5b00155] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Benzo-fused tri- to heptacyclic heteroarenes were effectively constructed by the rhodium-catalyzed dehydrogenative coupling of phenylheteroarenes with alkynes. Using alkenes as coupling partners, dehydrogenative alkenylation took place selectively on the phenyl moiety of phenylheteroarenes. Several experiments with deuterium-labeled substrates indicated that double C-H bond cleavages take place even in the reaction with alkenes.
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Affiliation(s)
- Tomonori Iitsuka
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
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19
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Guo L, Wong MS. Multiphoton excited fluorescent materials for frequency upconversion emission and fluorescent probes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:5400-5428. [PMID: 24981591 DOI: 10.1002/adma.201400084] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 04/17/2014] [Indexed: 06/03/2023]
Abstract
Recent progress in developing various strategies for exploiting efficient MPA fluorophores for two emerging technological MPA applications including frequency upconversion photoluminescence and lasing as well as 2PA fluorescence bioimaging and biosensing are presented. An intriguing application of MPA frequency-upconverted lasing offers opportunity for the fabrication of high-energy coherent light sources in the blue region which could create new advantages and breakthroughs in various laser-based applications. In addition, multiphoton excitation has led to considerable progress in the development of advanced diagnostic and therapeutic treatments; further advancement is anticipated with the emergence of various versatile 2PA fluorescence probes. It is widely appreciated that the two-photon excitation offers significant advantages for the biological fluorescence imaging and sensing which includes higher spatial resolution, less photobleaching and photodamage as well as deeper tissue penetration as compared to the one-photon excited microscopy. To be practically useful, the 2PA fluorescent probes for biological applications are required to have a site-specificity, a high fluorescence quantum yield, proper two-photon excitation and subsequent emission wavelengths, good photodecomposition stability, water solubility, and biocompatibility besides large 2PA action cross-sections.
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Affiliation(s)
- Lei Guo
- Institute of Molecular Functional Materials+, Department of Chemistry and Institute of Advanced Materials, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
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20
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Synthesis, antimicrobial, and anticancer evaluation of novel 2-(3-methylindolyl)benzimidazole derivatives. Med Chem Res 2014. [DOI: 10.1007/s00044-014-0974-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Synthesis and biological evaluation of 1-cyano-2-amino-benzimidazole derivatives as a novel class of antitumor agents. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0888-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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22
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Iitsuka T, Hirano K, Satoh T, Miura M. Rhodium-catalyzed annulative coupling of 3-phenylthiophenes with alkynes involving double C-H bond cleavages. Chemistry 2013; 20:385-9. [PMID: 24288235 DOI: 10.1002/chem.201303847] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Indexed: 11/09/2022]
Abstract
Double CH bond activation took place efficiently upon treatment of 3-phenylthiophenes with alkynes in the presence of a rhodium catalyst and a copper salt oxidant to form the corresponding naphthothiophene derivatives. Dehydrogenative coupling with alkenes was also found to occur on the phenyl moiety rather than the thiophene ring. These reactions provide straightforward synthetic methods for π-conjugated molecules involving a thiophene unit from readily available, simple building blocks.
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Affiliation(s)
- Tomonori Iitsuka
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan), Fax: (+81) 6-6879-7362
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23
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24
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Anwar S, Huang WY, Chen CH, Cheng YS, Chen K. An Efficient Friedel-Crafts/Oxa-Michael/Aromatic Annulation: Rapid Access to Substituted Naphtho[2,1-b]furan, Naphtho[1,2-b]furan, and Benzofuran Derivatives. Chemistry 2013; 19:4344-51. [DOI: 10.1002/chem.201204221] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Indexed: 11/08/2022]
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25
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Liu T, Sun C, Xing X, Jing L, Tan R, Luo Y, Huang W, Song H, Li Z, Zhao Y. Synthesis and evaluation of 2-[2-(phenylthiomethyl)-1H-benzo[d] imidazol-1-yl)acetohydrazide derivatives as antitumor agents. Bioorg Med Chem Lett 2012; 22:3122-5. [DOI: 10.1016/j.bmcl.2012.03.061] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 03/05/2012] [Accepted: 03/15/2012] [Indexed: 10/28/2022]
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26
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Hranjec M, Pavlović G, Karminski-Zamola G. Synthesis, crystal structure determination and antiproliferative activity of novel 2-amino-4-aryl-4,10-dihydro[1,3,5]triazino[1,2-a]benzimidazoles. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2011.10.054] [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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27
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Novel biologically active nitro and amino substituted benzimidazo[1,2-a]quinolines. Bioorg Med Chem 2011; 19:6329-39. [DOI: 10.1016/j.bmc.2011.09.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 09/01/2011] [Accepted: 09/02/2011] [Indexed: 11/20/2022]
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28
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Synthesis and biological evaluation of some novel 2-phenyl benzimidazole-1-acetamide derivatives as potential anthelmintic agents. ACTA PHARMACEUTICA 2011; 61:353-61. [PMID: 21945914 DOI: 10.2478/v10007-011-0029-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The present study describes synthesis of a series of 2-phenyl benzimidazole-1-acetamide derivatives and their evaluation for anthelmintic activity using Indian adult earthworms, Pheretima posthuma. The structure of the title compounds was elucidated by elemental analysis and spectral data. The compounds 4-({[2-(4-nitrophenyl)-1H-benzimidazol-1-yl]acetyl}amino) benzoic acid (3a), N-ethyl-2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl] acetamide (3c), N-benzyl-2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl] acetamide (3d), N-(4-hydroxyphenyl)-2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl] acetamide (3f), 2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl]-N-phenyl acetamide (3h), 2-[2-(4-chlorophenyl)-1H-benzimidazol-1-yl]-N'-phenylacetohydrazide (3k), 2-[2-(4-chlorophenyl)-1H-benzimidazol-1-yl]-N-(4-nitrophenyl) acetamide (3n) and 2-[2-(4-chlorophenyl)-1H-benzimidazol-1-yl]-N-phenyl acetamide (3q) were found better to paralyze worms whereas N-ethyl-2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl] acetamide (3c), N-(4-nitrophenyl)-2-[2-(4-nitrophenyl)-1H-benzimidazol-1-yl] acetamide (3e), 4-({[2-(4-chlorophenyl)-1H-benzimidazol-1-yl] acetyl}amino) benzoic acid (3j), 2-[2-(4-chlorophenyl)-1H-benzimidazol-1-yl]-N-ethyl acetamide (31) and 2-[2-(4-chlorophenyl)-1H-benzimidazol-1-yl]-N-phenyl acetamide (3q) were better to cause death of worms compared to the anthelmintic drug albendazole.
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29
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Effect of quinolinyl acrylate derivatives on prostate cancer in vitro and in vivo. Invest New Drugs 2011; 30:1426-33. [DOI: 10.1007/s10637-011-9716-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 06/29/2011] [Indexed: 11/26/2022]
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30
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Qin X, Cong X, Zhao D, You J, Lan J. One-pot synthesis of benzofused heteroaryl azoles via tandem C-heteroatom coupling/C–H activation of azoles. Chem Commun (Camb) 2011; 47:5611-3. [PMID: 21475749 DOI: 10.1039/c1cc10572h] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Cu(i) or Pd(ii)-catalyzed cross-couplings of gem-dihaloolefins with azoles via tandem C-heteroatom coupling/C–H activation for the preparation of benzofused heteroaryl azoles have been developed.
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Affiliation(s)
- Xurong Qin
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry, and State Key Laboratory of Biotherapy
- West China Medical School
- Sichuan University
- Chengdu 610064
| | - Xuefeng Cong
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry, and State Key Laboratory of Biotherapy
- West China Medical School
- Sichuan University
- Chengdu 610064
| | - Dongbing Zhao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry, and State Key Laboratory of Biotherapy
- West China Medical School
- Sichuan University
- Chengdu 610064
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry, and State Key Laboratory of Biotherapy
- West China Medical School
- Sichuan University
- Chengdu 610064
| | - Jingbo Lan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry, and State Key Laboratory of Biotherapy
- West China Medical School
- Sichuan University
- Chengdu 610064
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Liu X, Sun Y, Zhang Y, Miao F, Wang G, Zhao H, Yu X, Liu H, Wong WY. A 2,7-carbazole-based dicationic salt for fluorescence detection of nucleic acids and two-photon fluorescence imaging of RNA in nucleoli and cytoplasm. Org Biomol Chem 2011; 9:3615-8. [DOI: 10.1039/c1ob05123g] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Catalán M, Álvarez-Lueje A, Bollo S. Electrochemistry of interaction of 2-(2-nitrophenyl)-benzimidazole derivatives with DNA. Bioelectrochemistry 2010; 79:162-7. [DOI: 10.1016/j.bioelechem.2010.02.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 09/22/2009] [Accepted: 02/12/2010] [Indexed: 10/19/2022]
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33
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Hranjec M, Pavlović G, Marjanović M, Kralj M, Karminski-Zamola G. Benzimidazole derivatives related to 2,3-acrylonitriles, benzimidazo[1,2-a]quinolines and fluorenes: synthesis, antitumor evaluation in vitro and crystal structure determination. Eur J Med Chem 2010; 45:2405-17. [PMID: 20207049 DOI: 10.1016/j.ejmech.2010.02.022] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2009] [Revised: 02/04/2010] [Accepted: 02/08/2010] [Indexed: 10/19/2022]
Abstract
A synthesis and biological evaluation of new benzimidazole derivatives, related to 2,3-disubstituted acrylonitriles, benzimidazo[1,2-a]quinoline-6-carbonitriles and heteroaromatic fluorenes was described. The molecular and crystal structures of three compounds 4, 16 and 17 reveal that non-fused fluoro derivative, 4, deviates from planarity by 13.11(2) degrees, while fused methyl, 16, and fluoro, 17, derivatives are planar within 4 degrees exhibiting a planar aromatic surface capable to intercalate into double-stranded DNA. Compound 4 exists as E-isomer. The crystal structures confirmed that hydrogen bonding patterns are characterized dominantly by the weak C-H...N(F) bonds, except in the case of 4 where the presence of ethanol molecule of crystallization resulted in the N-H...O and O-H...N hydrogen bonds formation. In the crystal structures of 16 and 17 cyano group participates in hydrogen bonding formation, while in 4 this is not the case. All compounds, except 16 and 14 exerted pronounced antiproliferative activity on five tumor cell lines, whereby 2-benzimidazolyl-3-N-methylpyrolyl-acrylonitrile 13 and its fused analogue 23 exerted the highest activity on all cell lines (IC50=0.8-30 microM) and showed a special selectivity toward HeLa cells. There is no major difference in the biological activity between non-fused and fused analogues. Similarly, all compounds showed significant interaction with ct-DNA, supporting the fact that their antitumor activity could partially be the consequence of DNA-binding. The cyano moiety is important for the activity, but not the selectivity of tested compounds.
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Affiliation(s)
- Marijana Hranjec
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 20, P.O. Box 177, HR-10000 Zagreb, Croatia.
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34
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Zhang Y, Wang J, Jia P, Yu X, Liu H, Liu X, Zhao N, Huang B. Two-photon fluorescence imaging of DNA in living plant turbid tissue with carbazole dicationic salt. Org Biomol Chem 2010; 8:4582-8. [DOI: 10.1039/c0ob00030b] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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