1
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Kaliyan P, Selvaraj L, Muthu SP. Water extract of onion catalyst: An economical green route for the synthesis of 2‐substituted and 1,2‐disubstituted benzimidazole derivatives with high selectivity. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Prabakaran Kaliyan
- Department of Chemistry The Gandhigram Rural Institute‐Deemed to be University Dindigul India
| | - Loganathan Selvaraj
- Department of Chemistry The Gandhigram Rural Institute‐Deemed to be University Dindigul India
| | - Seenivasa Perumal Muthu
- Department of Chemistry The Gandhigram Rural Institute‐Deemed to be University Dindigul India
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2
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Angajala G, Subashini R, Aruna V. Microwave assisted amberlite-IRA-402 (OH) ion exchange resin catalyzed synthesis of new benzoxazole scaffolds derived from antiinflammatory drugs aceclofenac and mefenamic acid as potential therapeutic agents for inflammation. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127092] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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3
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Huynh TKC, Nguyen THA, Nguyen TCT, Hoang TKD. Synthesis and insight into the structure–activity relationships of 2-phenylbenzimidazoles as prospective anticancer agents. RSC Adv 2020; 10:20543-20551. [PMID: 35517717 PMCID: PMC9054280 DOI: 10.1039/d0ra02282a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 05/10/2020] [Indexed: 12/15/2022] Open
Abstract
Three series of 2-phenylbenzimidazoles obtained under simple and convenient pathways, were used to elucidate their SARs against three cancer cell lines: A549, MDA-MB-231 and PC3.
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Affiliation(s)
- Thi-Kim-Chi Huynh
- Institute of Chemical Technology – VAST
- Ho Chi Minh City
- Vietnam
- Graduate University of Science and Technology – VAST
- Hanoi
| | | | - Thi-Cam-Thu Nguyen
- Institute of Chemical Technology – VAST
- Ho Chi Minh City
- Vietnam
- Ton Duc Thang University
- Ho Chi Minh City
| | - Thi-Kim-Dung Hoang
- Institute of Chemical Technology – VAST
- Ho Chi Minh City
- Vietnam
- Graduate University of Science and Technology – VAST
- Hanoi
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4
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Synthesis, molecular modeling, and pharmacological evaluation of new 2-substituted benzoxazole derivatives as potent anti-inflammatory agents. Struct Chem 2019. [DOI: 10.1007/s11224-019-01374-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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5
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Abdelhamid AO, Baghos VB, Halim MM. Synthesis and reactivity of N-[3-amino-4-(benzoxazol-2-yl)pyrazol-5-yl]phenylamine. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823407x228830] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Pyrazolo[5,1- a]pyrimidines and pyrazolo[5,1-c][1,2,4]triazines containing benzooxazole moiety are synthesised from N-[3-amino-4-(benzoxazol-2-yl)pyrazol-5-yl]phenylamine or its diazonium chloride with the appropriate active methylene compounds. The newly synthesised compounds were elucidated by elemental analysis, spectral data and alternative synthetic route whenever possible.
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Affiliation(s)
- Abdou O. Abdelhamid
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Victorin B. Baghos
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Mervat M.A. Halim
- Hormone Department, National Research Centre, Dokki, Giza 12622, Egypt
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6
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Ayaz F, Kheeree R, Isse QA, Ersan RH, Algul O. DNA Base Bioisosteres, Bis-benzoxazoles, Exert Anti-proliferative Effect on Human Prostate and Breast Cancer Cells. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2018. [DOI: 10.18596/jotcsa.429504] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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7
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8
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Yurko EO, Gryaznova TV, Kholin KV, Khrizanforova VV, Budnikova YH. External oxidant-free cross-coupling: electrochemically induced aromatic C–H phosphonation of azoles with dialkyl-H-phosphonates under silver catalysis. Dalton Trans 2018; 47:190-196. [DOI: 10.1039/c7dt03650g] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A convenient external oxidant-free method of azole derivatives phosphorylation by dialkyl-H-phosphonates through electrochemical catalytic oxidation in the presence of silver salts (1%) is proposed.
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Affiliation(s)
- E. O. Yurko
- A.E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russian Federation
| | - T. V. Gryaznova
- A.E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russian Federation
| | - K. V. Kholin
- A.E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russian Federation
| | - V. V. Khrizanforova
- A.E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russian Federation
| | - Y. H. Budnikova
- A.E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russian Federation
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9
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Bujok R, Wiszniewski M, Cmoch P, Wróbel Z. A general and convenient method for the synthesis of 2,4-dinitrobenzyl ketones. Almost unlimited access to 2-substituted 6-nitroindoles from 2,4-dinitrotoluene and aldehydes. NEW J CHEM 2018. [DOI: 10.1039/c7nj04919f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Starting from 2,4-dinitrotoluene and aldehydes, 2-substituted 6-nitroindoles with alkyl, cycloalkyl, aryl and heteroaryl (thienyl, furyl, pyridyl) substituents in the 2-position of the indole ring were synthesized. This methodology can be used for synthesis of indoles with non-racemic substituents.
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Affiliation(s)
- Robert Bujok
- Institute of Organic Chemistry, Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Marcin Wiszniewski
- Faculty of Chemistry, Warsaw University of Technology
- 00-664 Warsaw
- Poland
| | - Piotr Cmoch
- Institute of Organic Chemistry, Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Zbigniew Wróbel
- Institute of Organic Chemistry, Polish Academy of Sciences
- 01-224 Warsaw
- Poland
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10
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Ranjan N, Story S, Fulcrand G, Leng F, Ahmad M, King A, Sur S, Wang W, Tse-Dinh YC, Arya DP. Selective Inhibition of Escherichia coli RNA and DNA Topoisomerase I by Hoechst 33258 Derived Mono- and Bisbenzimidazoles. J Med Chem 2017; 60:4904-4922. [DOI: 10.1021/acs.jmedchem.7b00191] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Nihar Ranjan
- Laboratory
of Medicinal Chemistry, Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Sandra Story
- NUBAD LLC, 900B West Faris
Road, Greenville, South Carolina 29605, United States
| | - Geraldine Fulcrand
- Department
of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
- Biomolecular
Sciences Institute, Florida International University, Miami, Florida 33199, United States
| | - Fenfei Leng
- Department
of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
- Biomolecular
Sciences Institute, Florida International University, Miami, Florida 33199, United States
| | - Muzammil Ahmad
- Genome
Instability and Chromatin Remodeling Section, Lab of Genetics, National
Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, Maryland 21224, United States
| | - Ada King
- NUBAD LLC, 900B West Faris
Road, Greenville, South Carolina 29605, United States
| | - Souvik Sur
- Laboratory
of Medicinal Chemistry, Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Weidong Wang
- Genome
Instability and Chromatin Remodeling Section, Lab of Genetics, National
Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, Maryland 21224, United States
| | - Yuk-Ching Tse-Dinh
- Department
of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
- Biomolecular
Sciences Institute, Florida International University, Miami, Florida 33199, United States
| | - Dev P. Arya
- Laboratory
of Medicinal Chemistry, Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
- NUBAD LLC, 900B West Faris
Road, Greenville, South Carolina 29605, United States
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11
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Brătulescu G. Mild, one-pot preparation of 2-substituted benzimidazoles from organic halides. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1287922] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Synthesis and biological evaluation of benzoxazole fused combretastatin derivatives as anticancer agents. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1685-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Ertan-Bolelli T, Yildiz İ, Ozgen-Ozgacar S. Synthesis, molecular docking and antimicrobial evaluation of novel benzoxazole derivatives. Med Chem Res 2016. [DOI: 10.1007/s00044-015-1499-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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14
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Chen CL, Liu FL, Lee CC, Chen TC, Chang WW, Guh JH, Ahmed Ali AA, Chang DM, Huang HS. Ring fusion strategy for the synthesis of anthra[2,3-d]oxazole-2-thione-5,10-dione homologues as DNA topoisomerase inhibitors and as antitumor agents. Eur J Med Chem 2014; 87:30-8. [DOI: 10.1016/j.ejmech.2014.09.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 08/22/2014] [Accepted: 09/04/2014] [Indexed: 10/24/2022]
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15
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Synthesis, in vitro antimicrobial and cytotoxic activities of novel pyrimidine–benzimidazol combinations. Bioorg Med Chem Lett 2014; 24:2741-3. [DOI: 10.1016/j.bmcl.2014.04.037] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 03/26/2014] [Accepted: 04/09/2014] [Indexed: 11/23/2022]
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16
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Barghash RF, Ganoub NA, Abdou WM. Development of a general and efficient route to highly lipophilic benzoxazole-2ylphosphonates and their antineoplastic properties. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1233-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Polymer conjugates with potential biological activity based on new derivatives of 2-mercaptobenzoxazole-synthesis and characterization. OPEN CHEM 2013. [DOI: 10.2478/s11532-013-0310-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractNew potentially biologically active compounds derived from 2-mercapto-benzoxazole were synthesized and coupled on polymeric support of poly (maleic anhydride-alt-vinyl acetate) for the preparation of polymer-drug conjugates with controlled drug release. All compounds were characterized by elemental and spectroscopy (FT-IR, 1H-NMR) analysis. The toxicological tests recommend the products for further laboratory screening.
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18
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Primary anti-proliferative activity evaluation of 1-(quinolizidin-1’-yl)methyl- and 1-( $$\omega $$ -tert-amino)alkyl-substituted 2-phenyl-, 2-benzyl- and 2-[(benzotriazol-1/2-yl)methyl]benzimidazoles on human cancer cell lines. Mol Divers 2013; 17:409-19. [DOI: 10.1007/s11030-013-9440-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 03/26/2013] [Indexed: 12/20/2022]
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19
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Naeimi H, Alishahi N. Efficient, Rapid and One Pot Synthesis of 2-substituted Benzimidazoles Using the NaOH/I2 System as an Oxidant Under Mild Conditions. JOURNAL OF CHEMICAL RESEARCH 2013. [DOI: 10.3184/174751913x13636014702351] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A one-pot efficient synthesis of benzimidazole derivatives has been achieved from aryl aldehydes and o-phenylenediamine in the presence of the NaOH/I2 system at room temperature in acetonitrile. The simplicity of the procedure and work-up, larger scale synthesis, high yields and short reaction times are the advantages of this method.
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Affiliation(s)
- Hossein Naeimi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan 87317, Iran
| | - Nasrin Alishahi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan 87317, Iran
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20
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Janowska K, Matczak R, Zakrzewski J, Krawczyk H. A novel regioselective method for aminostilbene preparation—the role of sodium azide. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Adamovich SN, Mirskova AN, Mirskov RG, Lopyrev VA. Synthesis of Novel Benzimidazolium Salts of Biologically Active Chalcogenylacetic Acids. MENDELEEV COMMUNICATIONS 2012. [DOI: 10.1016/j.mencom.2012.11.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Bansal S, Sinha D, Singh M, Cheng B, Tse-Dinh YC, Tandon V. 3,4-dimethoxyphenyl bis-benzimidazole, a novel DNA topoisomerase inhibitor that preferentially targets Escherichia coli topoisomerase I. J Antimicrob Chemother 2012; 67:2882-91. [PMID: 22945915 DOI: 10.1093/jac/dks322] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Antibiotic resistance in bacterial pathogens is a serious clinical problem. Novel targets are needed to combat increasing drug resistance in Escherichia coli. Our objective is to demonstrate that 2-(3,4-dimethoxyphenyl)-5-[5-(4-methylpiperazin-1-yl)-1H-benzimidazol-2yl]-1H-benzimidazole (DMA) inhibits E. coli DNA topoisomerase I more strongly than human topoisomerase I. In addition, DMA is non-toxic to mammalian cells at antibiotic dosage level. METHODS In the present study, we have established DMA as an antibacterial compound by determining MICs, post-antibiotic effects (PAEs) and MBCs for different standard as well as clinical strains of E. coli. We have described the differential catalytic inhibitory mechanism of bis-benzimidazole, DMA, for human and E. coli topoisomerase I and topoisomerase II by performing different assays, including relaxation assays, cleavage-religation assays, DNA unwinding assays, ethidium bromide displacement assays, decatenation assays and DNA gyrase supercoiling assays. RESULTS DMA significantly inhibited bacterial growth at a very low concentration, but did not affect human cell viability at higher concentrations. Activity assays showed that it preferentially targeted E. coli topoisomerase I over human topoisomerase I, topoisomerase II and gyrase. Cleavage-religation assays confirmed DMA as a poison inhibitor of E. coli topoisomerase I. This study illuminates new properties of DMA, which may be further modified to develop an efficient topoisomerase inhibitor that is selective towards bacterial topoisomerase I. CONCLUSIONS This is the first report of a bis-benzimidazole acting as an E. coli topoisomerase I inhibitor. DMA is a safe, non-cytotoxic molecule to human cells at concentrations that are needed for antibacterial activity.
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Affiliation(s)
- Sandhya Bansal
- Department of Chemistry, University of Delhi, Delhi 110007, India
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23
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Mild and highly efficient copper (II) sulfate catalyzed one pot synthesis of 2-aryl benzimidazole using atmospheric air as an oxidant and its antibacterial study. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0178-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Eshghi H, Rahimizadeh M, Shiri A, Sedaghat P. One-pot Synthesis of Benzimidazoles and Benzothiazoles in the Presence of Fe(HSO4)3as a New and Efficient Oxidant. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.2.515] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Arjunan V, Balamourougane P, Mythili C, Mohan S. Experimental spectroscopic (FTIR, FT-Raman, FT-NMR, UV–Visible) and DFT studies of 2-amino-5-chlorobenzoxazole. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.07.043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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26
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Youssef C, Ammar HB, Belhouchet M, Beydoun K, Salem RB, Doucet H, Dixneuf PH. Syntheses of new benzoxazole derivatives. J Heterocycl Chem 2011. [DOI: 10.1002/jhet.623] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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27
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Modelling topoisomerase I inhibition by minor groove binders. Bioorg Med Chem 2011; 19:1450-7. [PMID: 21273082 DOI: 10.1016/j.bmc.2011.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2010] [Revised: 01/03/2011] [Accepted: 01/04/2011] [Indexed: 10/18/2022]
Abstract
Topoisomerase inhibition is an extremely useful target for anticancer and antimicrobial drugs, and an undesirable side effect of some drugs targeting other proteins. Published modelling studies are sparse, and have used small data sets with relatively low molecular diversity. Given the important role of minor groove binding in the mechanism of topoisomerase I inhibition, we have conducted the first 3D QSAR study of topoisomerase I inhibition of a large, diverse set of minor groove binders using the minor groove binding conformation as the alignment template. The highly significant QSAR models resulting from this alignment identify the roles played by molecular features, most importantly the hydrogen bond donor properties.
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Karuvalam RP, Siji M, Divia. N, Haridas KR. Tetra Butyl Ammonium Chloride Catalyzed Synthesis of Substituted Benzimidazoles under Microwave Conditions. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2010. [DOI: 10.5012/jkcs.2010.54.5.589] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Turan-Zitouni G, Kaplancikli ZA, Uçucu Ü, Özdemir A, Chevallet P, Tunali Y. SYNTHESIS OF SOME 2-[(BENZAZOLE-2-YL)THIO]-DIPHENYLMETHYLACETAMIDE DERIVATIVES AND THEIR ANTIMICROBIAL ACTIVITY. PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426500490474851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- G. Turan-Zitouni
- a Anadolu University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry , Eskisehir, Turkey
| | | | - Ü. Uçucu
- a Anadolu University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry , Eskisehir, Turkey
| | - A. Özdemir
- a Anadolu University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry , Eskisehir, Turkey
| | - P. Chevallet
- b Montpellier University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry , Montpellier, France
| | - Y. Tunali
- c Anadolu University, Faculty of Pharmacy, Department of Microbiology , Eskisehir, Turkey
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30
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Nannapaneni DT, Gupta AVSSS, Reddy MI, Sarva RC. Synthesis, characterization, and biological evaluation of benzimidazole derivatives as potential anxiolytics. J Young Pharm 2010; 2:273-9. [PMID: 21042485 PMCID: PMC2964780 DOI: 10.4103/0975-1483.66809] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The synthesized benzimidazoles compounds were prepared from the condensation reaction between o-Phenylenediamine and various carbonyl compounds, in the presence of ammonium chloride as a catalyst. Ammonium chloride is a commercial and environmentally benign catalyst. The yield of all benzimidazole derivatives was found to be in the range of 75 - 94%. The purity of the compounds was ascertained by melting point and TLC. The synthesized compounds were characterized by using IR,(1)H NMR, and MASS spectral data together with elemental analysis. The synthesized benzimidazole compounds were screened for acute and chronic anti-anxiety activity in Wistar rats by using an elevated plus maze model with standard Diazepam. The synthesized compounds Z(B), Z(E), Z(F), Z(G), and Z(H) showed potent anti-anxiety activity when compared to the standard Diazepam. The compound Z(H) exhibited a higher anti-anxiety activity when compared to other prepared benzimidazoles. The results were subjected to statistical analysis by using one-way ANOVA followed by the Tukey-Kramer test, to calculate the significance.
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Affiliation(s)
- DT Nannapaneni
- Department of Pharmaceutical Chemistry, Mallareddy College of Pharmacy, Dhullapally Village, Hyderabad - 500 014, India
| | - Atyam VSSS Gupta
- Department of Pharmacology, Joginpally B.R Pharmacy College, Yenkapally (P.O), Moinabad (Mandal), Ranga Reddy (Dist), Andhra Pradesh, India
| | - MI Reddy
- Department of Pharmaceutical Chemistry, Mallareddy College of Pharmacy, Dhullapally Village, Hyderabad - 500 014, India
| | - Raidu Ch Sarva
- Department of Pharmacology, Joginpally B.R Pharmacy College, Yenkapally (P.O), Moinabad (Mandal), Ranga Reddy (Dist), Andhra Pradesh, India
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Jiang J, Tang X, Dou W, Zhang H, Liu W, Wang C, Zheng J. Synthesis and characterization of the ligand based on benzoxazole and its transition metal complexes: DNA-binding and antitumor activity. J Inorg Biochem 2010; 104:583-91. [DOI: 10.1016/j.jinorgbio.2010.01.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2009] [Revised: 01/19/2010] [Accepted: 01/29/2010] [Indexed: 11/27/2022]
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32
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Kumar JA, Tiwari AK, Ali AZ, Madhusudhana K, Reddy BS, Ramakrishna S, China Raju B. New antihyperglycemic, α-glucosidase inhibitory, and cytotoxic derivatives of benzimidazoles. J Enzyme Inhib Med Chem 2009; 25:80-6. [DOI: 10.3109/14756360903017122] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jaladi Ashok Kumar
- Organic Chemistry Division-I, Indian Institute of Chemical Technology, Hyderabad, India
| | - Ashok Kumar Tiwari
- Pharmacology Division, Indian Institute of Chemical Technology, Hyderabad, India
| | - Amtul Zehra Ali
- Pharmacology Division, Indian Institute of Chemical Technology, Hyderabad, India
| | - Kuncha Madhusudhana
- Pharmacology Division, Indian Institute of Chemical Technology, Hyderabad, India
| | | | - Sistala Ramakrishna
- Pharmacology Division, Indian Institute of Chemical Technology, Hyderabad, India
| | - Bhimapaka China Raju
- Organic Chemistry Division-I, Indian Institute of Chemical Technology, Hyderabad, India
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Ertan T, Yildiz I, Tekiner-Gulbas B, Bolelli K, Temiz-Arpaci O, Ozkan S, Kaynak F, Yalcin I, Aki E. Synthesis, biological evaluation and 2D-QSAR analysis of benzoxazoles as antimicrobial agents. Eur J Med Chem 2009; 44:501-10. [DOI: 10.1016/j.ejmech.2008.04.001] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Revised: 03/28/2008] [Accepted: 04/08/2008] [Indexed: 11/16/2022]
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34
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Raju BC, Theja ND, Kumar JA. Efficient and Inexpensive Synthesis of Benzimidazoles and Quinoxalines. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910802372525] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Wang H, You QD, Li ZY, Zou YQ. Design, synthesis and antitumor activity of 3-substituted quinolone derivatives (I). CHINESE CHEM LETT 2008. [DOI: 10.1016/j.cclet.2008.09.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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36
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Alper-Hayta S, Arisoy M, Temiz-Arpaci Ö, Yildiz I, Aki E, Özkan S, Kaynak F. Synthesis, antimicrobial activity, pharmacophore analysis of some new 2-(substitutedphenyl/benzyl)-5-[(2-benzofuryl)carboxamido]benzoxazoles. Eur J Med Chem 2008; 43:2568-78. [DOI: 10.1016/j.ejmech.2007.12.019] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2007] [Revised: 12/07/2007] [Accepted: 12/12/2007] [Indexed: 11/16/2022]
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37
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Synthesis of some novel 2-substituted benzoxazoles as anticancer, antifungal, and antimicrobial agents. Med Chem Res 2008. [DOI: 10.1007/s00044-007-9076-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Arisoy M, Temiz-Arpaci O, Yildiz I, Kaynak-Onurdag F, Aki E, Yalcin I, Abbasoglu U. Synthesis, antimicrobial activity and QSAR studies of 2,5-disubstituted benzoxazoles. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2008; 19:589-612. [PMID: 18853304 DOI: 10.1080/10629360802348738] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In this study, a new series of 2,5-disubstituted benzoxazoles was synthesized and their structures were elucidated by elemental analysis, MASS, (1)H-NMR, (13)C-NMR and IR spectral data. Newly and previously synthesized 2,5-disubstituted benzoxazole derivatives were evaluated for antibacterial and antifungal activity against standard strains and their drug-resistant isolates. Microbiological results showed that the compounds presented a large spectrum of activity having MIC values of 250-7.8 microg mL(-1) against the tested microorganisms. Among the newly synthesized derivatives 3-22, compound 11 was the most active against Candida krusei out of all; however, it was one dilution less potent than standard drug fluconazole. In addition, all the new and previous compounds were more active than standard drugs ampicillin trihydrate and rifampicin against Pseudomonas aeruginosa and its gentamicin-resistant isolate. The 2D-QSAR (Quantitative Structure-Activity Relationship) analysis of a set of newly and previously synthesized benzoxazoles tested for growth inhibitory activity against methicillin-resistant Staphylococcus aureus (MRSA) was also performed by using multivariable regression analysis. The activity contributions for substituent effects of these compounds were determined from the correlation equation for predictions of the lead optimization.
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Affiliation(s)
- M Arisoy
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Ankara University, Ankara, Turkey
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39
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Chen L, Yang C, Li S, Qin J. Synthesis and electronic absorption and fluorescence of 2-arylbenzothiazole derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 68:317-22. [PMID: 17329156 DOI: 10.1016/j.saa.2006.11.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2006] [Accepted: 11/27/2006] [Indexed: 05/14/2023]
Abstract
A series of new 2-arylbenzothiazoles have been prepared in high yields by Jacobson's cyclization condensation of 2-aminobenzenethiol with benzoyl chloride or benzaldehyde derivatives under three different routes. These compounds have been fully characterized by EA, IR, NMR and MS. The electronic absorption and fluorescence of these compounds have been systematically investigated for the first time. The relationships between their photophysical properties and structures have been discussed. The alteration of absorption and emission wavelengths can be elucidated by Hammett's substituent constants.
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Affiliation(s)
- Lianqing Chen
- Department of Chemistry, Hubei Key Laboratory on Organic and Polymeric Optoelectronic Materials, Wuhan University, Wuhan 430072, China
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40
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Oksuzoglu E, Temiz-Arpaci O, Tekiner-Gulbas B, Eroglu H, Sen G, Alper S, Yildiz I, Diril N, Aki-Sener E, Yalcin I. A study on the genotoxic activities of some new benzoxazoles. Med Chem Res 2007. [DOI: 10.1007/s00044-007-9005-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Turan-Zitouni G, Kaplancikli ZA, Özdemir A, Revial G, Güven K. Synthesis and Antimicrobial Activity of Some 2-(Benzo[ d ]oxazol/benzo[ d ]imidazol-2-ylthio)- N -(9 H -fluoren-9-yl)acetamide Derivatives. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/10426500601047016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Gülhan Turan-Zitouni
- a Department of Pharmaceutical Chemistry , Anadolu University , Eskişehir , Turkey
| | | | - Ahmet Özdemir
- a Department of Pharmaceutical Chemistry , Anadolu University , Eskişehir , Turkey
| | - Gilbert Revial
- b Laboiratoire de Chimie Organique, Centre National De La Recherche Scientifique , Paris , France
| | - Kiymet Güven
- c Department of Biology , Anadolu University , Eskişehir , Turkey
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42
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Shivashankar K, Kulkarni MV, Shastri LA, Rasal VP, Rajendra SV. The Synthesis and Biological Evaluation of Regioisomeric Benzothiazolyl Coumarins. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426500600614550] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- K. Shivashankar
- a Department of Postgraduate Studies in Chemistry , Karnatak University , Dharwad , India
| | - Manohar V. Kulkarni
- a Department of Postgraduate Studies in Chemistry , Karnatak University , Dharwad , India
| | - Lokesh A. Shastri
- a Department of Postgraduate Studies in Chemistry , Karnatak University , Dharwad , India
| | | | - Sandur V. Rajendra
- b College of Pharmacy, Karnataka Liberal Education Society , Hubli , India
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43
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Vinsova J, Cermakova K, Tomeckova A, Ceckova M, Jampilek J, Cermak P, Kunes J, Dolezal M, Staud F. Synthesis and antimicrobial evaluation of new 2-substituted 5,7-di-tert-butylbenzoxazoles. Bioorg Med Chem 2006; 14:5850-65. [PMID: 16784871 DOI: 10.1016/j.bmc.2006.05.030] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2006] [Revised: 05/09/2006] [Accepted: 05/15/2006] [Indexed: 11/26/2022]
Abstract
Various synthetic pathways of the 30 novel 2-substituted 5,7-di-tert-butylbenzoxazoles as new potential antimicrobial drugs are discussed. The 28 intermediates are described as well. The compounds were characterized by 1H and 13C NMR spectra, MS spectra, IR/UV spectra and by means of CHN analysis. The purity of the final compounds was checked by HPLC and their lipophilicity (log K) was also determined by means of RP-HPLC. In the present study, the correlation between RP-HPLC retention parameter log K (the logarithm of capacity factor K) and various calculated log P data is shown. The target compounds were tested for their in vitro antimycobacterial activity. Several compounds showed antituberculotic activity comparable with or higher than the standard isoniazide. In vitro cytotoxicity testing of the most active benzoxazoles and isoniazide as a reference drug was performed using MTT assay and compared with isoniazide as a reference drug. Structure-activity relationships among the chemical structures, the physical properties and the biological activities of the evaluated compounds are discussed in the article.
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Affiliation(s)
- Jarmila Vinsova
- Department of Inorganic and Organic Chemistry, Faculty of Pharmacy, Charles University, 500 05 Hradec Kralove, Czech Republic.
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44
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Temiz-Arpaci O, Coban T, Tekiner-Gulbas B, Can-Eke B, Yildiz I, Aki-Sener E, Yalcin I, Iscan M. A study on the antioxidant activities of some new benzazole derivatives. ACTA BIOLOGICA HUNGARICA 2006; 57:201-9. [PMID: 16841471 DOI: 10.1556/abiol.57.2006.2.7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The in vitro antioxidant properties of some new benzazole derivatives (1-10) such as benzoxazoles, benzimidazoles, and benzothiazoles were determined by their effects on the rat liver microsomal NADPH-dependent lipid peroxidation (LP) level, the scavenging of superoxide anion and the stable radical 2,2-diphenyl-1-picrylhydrazyl (DPPH). Compounds 1, 2, 4 and 6, showed potent scavenging effect on superoxide radical at 10(-3) M. Compound 8, 5-nitro-2-(phenoxymethyl)benzimidazole, strongly inhibited lipid peroxidation at 10(-3) M concentration.
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Affiliation(s)
- O Temiz-Arpaci
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, TR-06100 Tandogan, Ankara, Turkey.
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45
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Balasubramanian S, Aridoss G, Parthiban P, Ramalingan C, Kabilan S. Synthesis and Biological Evaluation of Novel Benzimidazol/Benzoxazolylethoxypiperidone Oximes. Biol Pharm Bull 2006; 29:125-30. [PMID: 16394524 DOI: 10.1248/bpb.29.125] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Some novel benzimidazol/benzoxazolylethoxypiperidone oximes were synthesized and their antibacterial activity against Staphylococcus aureus (NCIM-2492), Bacillus subtilis (NCIM-2439), Escherichia coli (NCIM-2345) and Pseudomonas aeruginosa (NCIM-2035) and antifungal activity against Candida albicans (NCIM-C27), Candida-6 (NCIM-C27), Candida-51 (NCIM-C27), Aspergillus niger (NCIM-590) and Aspergillus flavus (NCIM-539) have been evaluated. Compounds 26 and 27 exerted potent in vitro antibacterial activity against Bacillus subtilis, Escherichia coli and Staphylococcus aureus while compounds 26, 29 and 30 exhibited potent in vitro antifungal activity against Candida albicans, Candida-51, and Aspergillus niger.
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46
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Highly lipophilic benzoxazoles with potential antibacterial activity. Molecules 2005; 10:783-93. [PMID: 18007347 PMCID: PMC6147629 DOI: 10.3390/10070783] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2004] [Revised: 03/04/2005] [Accepted: 03/10/2005] [Indexed: 11/17/2022] Open
Abstract
A series of lipophilic 2-substituted 5,7-di-tert-butylbenzoxazoles was prepared in average yields by the reaction of 3,5-di-tert-butyl-1,2-benzoquinone with amino acids and dipeptides bearing N-terminal glycine. Dipeptides having other N-terminal amino acids undergo oxidative deamination. 5,7-Di-tert-butylbenzoxazoles have shown activity against Mycobacterium tuberculosis and some nontuberculous strains where isoniazid has been inactive. Antifungal activity was mediocre.
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47
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Li MJ, Jiang C, Li MZ, You TP. QSAR studies of 20(S)-camptothecin analogues as antitumor agents. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.theochem.2005.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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48
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Marquis JF, Hardy I, Olivier M. Resistance mechanism development to the topoisomerase-I inhibitor Hoechst 33342 byLeishmania donovani. Parasitology 2005; 131:197-206. [PMID: 16145936 DOI: 10.1017/s0031182005007328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The bisbenzimidazole compound Hoechst 33342 (Ho342) has been identified as a specific Topoisomerase-I (Topo-I) inhibitor in mammalian cells. More recently, we have reported the ability of Ho342 to targetL. donovaniTopo-I, leading to parasite growth inhibitionin vitroby mechanisms involving DNA breakage and apoptosis-like phenomenon. As the Ho342 lead molecule (2,5′-Bi-1H-benzimidazole) can be used as a starting structure for derivative compounds more effective againstLeishmania, defining the Ho342 resistance mechanism(s) inLeishmaniarepresents an important strategic tool. In the present study, we selected resistant parasites to Ho342 (LdRHo.300). While we observed an increase of the Topo-I gene expression correlated by a higher Topo-I DNA relaxation activity, the Topo-I genes (LdTOP1AandLdTOP1B) sequencing did not reveal any mutation for the resistant parasites. Moreover, our results on Ho342 cellular accumulation suggested the presence of a potential energy-dependent Ho342 transporter in the wild-type parasite, and that an alteration of this transporter has occurred inLdRHo.300, leading to an altered drug accumulation. Collectively, Ho342 resistance characterization provided results supporting that the resistance developed byLdRHo.300involves complex mechanisms, most likely dominated by an altered drug accumulation, providing new insight in the Ho342 resistance mechanisms.
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Affiliation(s)
- J F Marquis
- Centre for the Study of Host Resistance and the Research Institute of McGill University Health Centre, Department of Experimental Medicine, McGill University, Montreal, Quebec, Canada
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49
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Temiz-Arpaci O, Ozdemir A, Yalçin I, Yildiz I, Aki-Sener E, Altanlar N. Synthesis and Antimicrobial Activity of Some 5-[2-(Morpholin-4-yl)acetamido] and/or 5-[2-(4-Substituted piperazin-1-yl)acetamido]-2-(p-substituted phenyl)benzoxazoles. Arch Pharm (Weinheim) 2005; 338:105-11. [PMID: 15765492 DOI: 10.1002/ardp.200400923] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this study, a series of twelve novel 5-[2-(morpholin-4-yl)acetamido] and/or 5-[2-(4-substituted pip-erazine-1-yl)acetamido]-2-(p-substituted phenyl]benzoxazole derivatives have been synthesized and their structures were confirmed by IR, (1)H NMR, and mass spectral data. These compounds were prepared by reacting 5-(2-chloroacetamido)-2-(4-p-substituted-phenyl)benzoxazoles, which were obtained by using 5-amino-2-[p-substituted-phenyl]benzoxazoles with chloroacetyl chloride, in the presence of morpholine or 1-substituted piperazines. All synthesized compounds 3-14 were tested by using the method of twofold serial dilution technique for in vitro activities against certain strains of Gram-positive, Gram-negative bacteria as well as the yeasts Candida albicans, Candida krusei, and Candida glabrata in comparison with standard drugs. Microbiological results showed that the newly synthesized compounds possessed a broad spectrum of activity, showing MIC values of 3.12-50 mug/mL against the Candida species.
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Affiliation(s)
- Ozlem Temiz-Arpaci
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Ankara, Turkey
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50
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Long BH, Balasubramanian BN. Non-camptothecin topoisomerase I active compounds as potential anticancer agents. Expert Opin Ther Pat 2005. [DOI: 10.1517/13543776.10.5.635] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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