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El-Saghier AM, Abdou A, Mohamed MAA, Abd El-Lateef HM, Kadry AM. Novel 2-Acetamido-2-ylidene-4-imidazole Derivatives (El-Saghier Reaction): Green Synthesis, Biological Assessment, and Molecular Docking. ACS OMEGA 2023; 8:30519-30531. [PMID: 37636903 PMCID: PMC10448697 DOI: 10.1021/acsomega.3c03767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 07/26/2023] [Indexed: 08/29/2023]
Abstract
El-Saghier reaction is the novel, general, and green reaction of various amines with ethyl cyanoacetate and ethyl glycinate hydrochloride. A new series of imidazolidin-4-ones and bis-N-(alkyl/aryl) imidazolidin-4-ones was synthesized in a sequential, one-pot procedure under neat conditions for 2 h at 70 °C. Excellent high yields (90-98%) were achieved in a short period of time while avoiding issues related to the hazardous solvents utilized (cost, safety, and pollution). The spectrum analyses and elemental data of the newly synthesized compounds helped us to clarify their structures. The obtained compounds were tested for antibacterial activity in vitro and compared to the standard antibiotic chloramphenicol as the standard, measuring the inhibition zone (nm) and activity index (%). With an antibacterial percentage value of 80.0 against Escherichia coli, N,N'-(propane-1,3-diyl) bis(2-(4-oxo-4,5-dihydro-1H-imidazole-2-yl) acetamide) proved to be the most effective. Antimicrobial activity was confirmed by a molecular docking investigation to investigate how chemicals bind to the bacterial FabH-CoA complex in E. coli (PDB ID: 1HNJ).
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Affiliation(s)
- Ahmed M. El-Saghier
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Aly Abdou
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | | | - Hany M. Abd El-Lateef
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
| | - Asmaa M. Kadry
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
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2
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Yadav N, Saquib M, Arya KK, Hussain MK. A Versatile New Approach to Bridgehead Nitrogen Bearing Benzimidazolo-Quinazoline Hybrids: Facile 1,4-Dipolar Cycloaddition of Benzyne and N-(1 H-Benzo[ d]Imidazol-2-yl)-1-Phenylmethanimines. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2105907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Nisha Yadav
- Department of Chemistry, Dayanand Arya Kanya Degree College Moradabad (M.J.P. Rohilkhand University), Bareilly, India
| | - Mohammad Saquib
- Department of Chemistry, University of Allahabad, Prayagraj (Allahabad), India
| | - Krishan Kumar Arya
- Department of Chemistry, Government Model Degree College, Arniya, Bulandshahar, India
| | - Mohd Kamil Hussain
- Department of Chemistry, Government Raza P.G. College (M.J.P. Rohilkhand University), Rampur, India
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3
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Abdou A, Abdel‐Mawgoud AM. Synthesis, Structural elucidation, DFT investigation of new mononuclear Fe (III), Ni (II), and Cu (II) mixed‐ligand complexes; Biological and Catalase mimicking activity exploration. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6600] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Aly Abdou
- Chemistry Department, Faculty of Science Sohag University Sohag Egypt
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4
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Srivastava V, Singh PK, Tivari S, Singh PP. Visible light photocatalysis in the synthesis of pharmaceutically relevant heterocyclic scaffolds. Org Chem Front 2022. [DOI: 10.1039/d1qo01602d] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Visible light and photoredox catalysis have emerged as a powerful and long-lasting tool for organic synthesis, demonstrating the importance of a variety of chemical bond formation methods.
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Affiliation(s)
- Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj 211002, India
| | - Pravin K. Singh
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj 211002, India
| | - Shraddha Tivari
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj 211002, India
| | - Praveen P. Singh
- Department of Chemistry, United College of Engineering & Research, Naini, Prayagraj 211010, India
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5
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Orhan E, Dülger G, Alpay M, Öksüz N, Dülger B. Synthesis, antimicrobial and antiproliferative activities of new self-assembly benzimidazole-bridged aren ruthenium rectangles in human breast cancer cells. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01099-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Vargas-Oviedo D, Portilla J, Macías MA. Influence of the haloaryl moiety over the molecular packing in N-phenacylbenzimidazoles crystallizing in the same space group. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129869] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Yang W, Zhao Y, Zhou Z, Li L, Cui L, Luo H. Preparation of 1,2-substituted benzimidazoles via a copper-catalyzed three component coupling reaction. RSC Adv 2021; 11:8701-8707. [PMID: 35423384 PMCID: PMC8695204 DOI: 10.1039/d1ra00650a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 02/10/2021] [Indexed: 12/20/2022] Open
Abstract
1,2-Substituted benzimidazoles were prepared by simply stirring a mixture of copper catalysts, N-substituted o-phenylenediamines, sulfonyl azides and terminal alkynes. Particularly, the intermediate N-sulfonylketenimine occurred with two nucleophilic addition and the sulfonyl group was eliminated via cyclization. In a way, sulfonyl azides and copper catalysts activated the terminal alkynes to synthesize benzimidazoles.
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Affiliation(s)
- Weiguang Yang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
- The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) Zhanjiang Guangdong 524023 China
| | - Yu Zhao
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
| | - Zitong Zhou
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
| | - Li Li
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
| | - Liao Cui
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
| | - Hui Luo
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
- The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) Zhanjiang Guangdong 524023 China
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8
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Synthesis, state-of-the-art NMR-binding and molecular modeling study of new benzimidazole core derivatives as Pin1 inhibitors: Targeting breast cancer. Bioorg Med Chem 2020; 28:115495. [PMID: 32307260 PMCID: PMC9793914 DOI: 10.1016/j.bmc.2020.115495] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/25/2020] [Accepted: 04/05/2020] [Indexed: 12/30/2022]
Abstract
New series of benzimidazole ring core conjugated with either dithiocarbamate or thiopropyl linkers, hybridized with different secondary amines were synthesized; 5-15 and 22-31; respectively. The new compounds were characterized by different spectroscopic techniques (1H, 13C 1D & 2D NMR, ESI-MS and IR). They were screened for in vitro anticancer activity against breast cancer using MCF7 cell line. The results obtained revealed that compounds 5, 12, 15 and 25 were the most active among the synthesized series exhibiting IC50 < 10 µg/ml against DOX. To characterize targeting breast cancer on molecular level, binding to 15N-labeled Pin1 enzyme was conducted using state-of-the-art 2D NMR binding experiments. Results showed promising binding between compounds 5, 12, and 25 by chemical shift perturbation (peak shifting or peak disappearance). Molecular docking study were quite valuable to explain the binding mode of active derivatives via hydrogen bonding. Additional contact preferences and surface mapping studies stated the similarity pattern between active candidates which may pave the way for more precise anti breast cancer target optimization.
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9
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Aroua LM. Novel Mixed Complexes Derived from Benzoimidazolphenylethanamine and
4-(Benzoimidazol-2-yl)aniline: Synthesis, Characterization, Antibacterial
Evaluation and Theoretical Prediction of Toxicity. ACTA ACUST UNITED AC 2020. [DOI: 10.14233/ajchem.2020.22472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Benzoimidazolphenylethanamine (BPE) has been synthesized using condensation reaction from
o-phenyldiamine and L-phenylalanine. Some metal complexes have been synthesized from
4-(benzoimidazol-2-yl)aniline, benzoimidazolylphenylethanamine and cadmium(II), tin(II), copper(II)
and nickel(II) metal in a molar ratio (1:1:1). All new metal complexes were characterized by
spectroscopic data of FTIR, UV-visible electronic absorption, X-ray powder diffraction and thermal
analysis. Spectra analysis of the mixed metal complexes showed the coordination of ligands to the
metal ions via nitrogen atoms. The XRD powder showed that metal complexes have a monoclinic
system. The preliminary tested in vitro antibacterial activities of Sn(II) complex was assayed against
four bacterial isolates namely Micrococcus luteus, Staphylococcus aureus as Gram-positive,
Pseudomonas aerugmosa and Escherichia coli.
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Affiliation(s)
- Lotfi M. Aroua
- 1Department of Chemistry, College of Science, Qassim University, Campus University, King Abdulaziz Road, P.O.Box: 6644, Buraydah, Qassim, Kingdom of Saudi Arabia 2Laboratory of Organic Structural Chemistry & Macromolecules, Department of Chemistry, Faculty of Sciences of Tunis, Tunis El-Manar University, El Manar I 2092, Tunis, Tunisia
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10
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Sanad SMH, Ahmed AAM, Mekky AEM. Synthesis, in-vitro and in-silico study of novel thiazoles as potent antibacterial agents and MurB inhibitors. Arch Pharm (Weinheim) 2020; 353:e1900309. [PMID: 31967349 DOI: 10.1002/ardp.201900309] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/20/2019] [Accepted: 12/28/2019] [Indexed: 11/07/2022]
Abstract
Efficient procedures are herein reported for the synthesis of novel hybrid thiazoles via a one-pot three-component protocol. The protocol involves the reaction of novel aldehyde, thiosemicarbazide and halogen-containing reagents in solvent- and catalyst-free conditions. The structures of the new thiazoles were elucidated by elemental analyses and spectroscopic data. The in-vitro antibacterial screening and MurB enzyme inhibition assays were performed for the novel thiazoles. The thiazol-4(5H)-one derivative 6d, with p-MeO, exhibits the best antibacterial activities with minimum inhibitory concentration values of 3.9, 3.9, 7.8, and 15.6 μg/ml against Staphylococcus aureus, Klebsiella pneumoniae, Streptococcus mutans, and Escherichia coli, respectively, as compared to the reference antibiotic drugs. It also exhibits the highest inhibition of the MurB enzyme with an IC50 of 8.1 μM. The structure-activity relationship was studied to determine the effect of the structures of the newly prepared molecules on the strength of the antibacterial activities. Molecular docking was also performed to predict the binding modes of the new thiazoles in the active sites of the E. coli MurB enzyme.
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Affiliation(s)
- Sherif M H Sanad
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Ahmed A M Ahmed
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt.,Basic Science Department, Jouf University, Sakaka, Kingdom of Saudi Arabia
| | - Ahmed E M Mekky
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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11
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Rashid M, Husain A, Mishra R, Karim S, Khan S, Ahmad M, Al-wabel N, Husain A, Ahmad A, Khan SA. Design and synthesis of benzimidazoles containing substituted oxadiazole, thiadiazole and triazolo-thiadiazines as a source of new anticancer agents. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.08.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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12
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Pagano A, Mancinelli M, Bianchi L, Giorgi G, Maccagno M, Petrillo G, Tavani C. Nitrobutadienes as powerful benzannulating agents: An unprecedented easy access to rare nitroindoles. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.06.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Maddela S, Mathew GE, Parambi DGT, Aljoufi F, Mathew B. Dual Acting Isatin-heterocyclic Hybrids: Recent Highlights as Promising Pharmacological Agents. LETT DRUG DES DISCOV 2018. [DOI: 10.2174/1570180815666180516102100] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
For the development of suitable lead molecules to different diseases is a
highly challenging task for medicinal chemists. Nowadays, hybrid pharmacophore concept has
developed as a useful structural modification tool in the drug design of new drug candidates for
different diseases. Hybrid pharmacophore approach consists of combination of two or more pharmacophoric
moieties from different biologically active compounds with complementary functions
or different mechanisms of action into a single molecule. This often results in synergistic activity or
enhanced drug efficacy.
Objective:
To develop the suitable leads for different diseases there will be a lot of scope to study
the substitution of heterocyclic moieties on the different positions of isatin ring. The broad and
potent activities of the isatin and their derivatives have been established them as pharmacologically
significant scaffolds. In this review, an attempt has been made with specifically emphasizing the
hybridization of Isatin with different derivatives of heterocyclic compounds on the different positions
of the isatin ring (aryl ring, isatin nitrogen and C2/C3 carbonyl moieties).
Conclusion:
This review highlighted the recent advances of dual acting isatin-heterocyclic hybrids
presenting various pharmacological activities viz., anticancer, antitubercular, anti-inflammatory and
antimicrobial.
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Affiliation(s)
- Srinubabu Maddela
- Centre for Pharmaceutical Sciences, Institute of Science and Technology, Jawaharlal Nehru Technological University Hyderabad, 500085, Telangana, India
| | | | | | - Fakhria Aljoufi
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Al Jouf-2014, Saudi Arabia
| | - Bijo Mathew
- Department of Pharmaceutical Chemistry, Division of Drug Design and Medicinal Chemistry Research Lab, Ahalia School of Pharmacy, Palakkad-678557, Kerala, India
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14
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Ismael M, Abdou A, Abdel-Mawgoud AM. Synthesis, Characterization, Modeling, and Antimicrobial Activity of FeIII, CoII, NiII, CuII, and ZnIIComplexes Based on Tri-substituted Imidazole Ligand. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800230] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Mohamed Ismael
- Chemistry Department; Faculty of Science; Sohag University; Sohag 82524 Egypt
| | - Aly Abdou
- Chemistry Department; Faculty of Science; Sohag University; Sohag 82524 Egypt
| | - A.-M. Abdel-Mawgoud
- Chemistry Department; Faculty of Science; Sohag University; Sohag 82524 Egypt
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15
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Ibrahim HA, Awadallah FM, Refaat HM, Amin KM. Molecular docking simulation, synthesis and 3D pharmacophore studies of novel 2-substituted-5-nitro-benzimidazole derivatives as anticancer agents targeting VEGFR-2 and c-Met. Bioorg Chem 2018; 77:457-470. [DOI: 10.1016/j.bioorg.2018.01.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 01/08/2018] [Accepted: 01/10/2018] [Indexed: 01/12/2023]
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16
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Synthesis of N-substituted imidazo[4,5-e]benzo[1,2-c;3,4-c’]difuroxans. Russ Chem Bull 2018. [DOI: 10.1007/s11172-017-1991-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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17
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Mullagiri K, Nayak VL, Sunkari S, Mani GS, Guggilapu SD, Nagaraju B, Alarifi A, Kamal A. New (3-(1 H-benzo[ d]imidazol-2-yl))/(3-(3 H-imidazo[4,5- b]pyridin-2-yl))-(1 H-indol-5-yl)(3,4,5-trimethoxyphenyl)methanone conjugates as tubulin polymerization inhibitors. MEDCHEMCOMM 2017; 9:275-281. [PMID: 30108921 DOI: 10.1039/c7md00450h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 11/21/2017] [Indexed: 01/11/2023]
Abstract
A series of new (3-(1H-benzo[d]imidazol-2-yl))/(3-(3H-imidazo[4,5-b]pyridin-2-yl))-(1H-indol-5-yl)(3,4,5-trimethoxyphenyl)methanone conjugates 4-6(a-i) were synthesized and evaluated for their antiproliferative activity on selected human cancer cell lines such as prostate (DU-145), lung (A549), cervical (HeLa) and breast (MCF-7). Most of these conjugates showed considerable cytotoxicity with IC50 values ranging from 0.54 to 31.86 μM. Among them, compounds 5g and 6f showed significant activity against human prostate cancer cell line DU-145 with IC50 values of 0.68 μM and 0.54 μM, respectively. Tubulin polymerization assay and immunofluorescence analysis results suggest that these compounds effectively inhibit microtubule assembly formation in DU-145. Further, the apoptosis-inducing ability of these derivatives (5g and 6f) was confirmed by Hoechst staining, measurement of mitochondrial membrane potential and ROS generation and annexin V-FITC assays.
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Affiliation(s)
- Kishore Mullagiri
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - V Lakshma Nayak
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - Satish Sunkari
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - Geeta Sai Mani
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India
| | - Sravanthi Devi Guggilapu
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India
| | - Burri Nagaraju
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - Abdullah Alarifi
- Catalytic Chemistry Research Chair , Chemistry Department , College of Science , King Saud University , Riyadh 11451 , Saudi Arabia
| | - Ahmed Kamal
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India . .,Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India.,Catalytic Chemistry Research Chair , Chemistry Department , College of Science , King Saud University , Riyadh 11451 , Saudi Arabia
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Mir JM, Vishwakarma PK, Maurya RC. Conjoint experimental–theoretical evaluation of pyrone-salicylic acid hydrazide copper(II) Schiff base complexes: their synthesis, SOD and electrochemical fronts. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/22243682.2017.1407669] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- J. M. Mir
- Coordination, Metallopharmaceutical and Computational Chemistry Laboratory, Department of P. G. Studies and Research in Chemistry and Pharmacy, R. D. University, Jabalpur, India
| | - P. K. Vishwakarma
- Coordination, Metallopharmaceutical and Computational Chemistry Laboratory, Department of P. G. Studies and Research in Chemistry and Pharmacy, R. D. University, Jabalpur, India
| | - R. C. Maurya
- Coordination, Metallopharmaceutical and Computational Chemistry Laboratory, Department of P. G. Studies and Research in Chemistry and Pharmacy, R. D. University, Jabalpur, India
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Mallikarjuna Reddy L, Lavanya G, Lakshmi Teja G, Padmaja A, Padmavathi V. Synthesis and Antibacterial Activity of Sulfur-linked Bis and Tris Heterocycles. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- L. Mallikarjuna Reddy
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
| | - G. Lavanya
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
| | - G. Lakshmi Teja
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
| | - A. Padmaja
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
| | - V. Padmavathi
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
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20
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Ali I, Lone MN, Aboul-Enein HY. Imidazoles as potential anticancer agents. MEDCHEMCOMM 2017; 8:1742-1773. [PMID: 30108886 PMCID: PMC6084102 DOI: 10.1039/c7md00067g] [Citation(s) in RCA: 196] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 03/21/2017] [Indexed: 12/19/2022]
Abstract
Cancer is a black spot on the face of humanity in this era of science and technology. Presently, several classes of anticancer drugs are available in the market, but issues such as toxicity, low efficacy and solubility have decreased the overall therapeutic indices. Thus, the search for new promising anticancer agents continues, and the battle against cancer is far from over. Imidazole is an aromatic diazole and alkaloid with anticancer properties. There is considerable interest among scientists in developing imidazoles as safe alternatives to anticancer chemotherapy. The present article describes the structural, chemical, and biological features of imidazoles. Several classes of imidazoles as anticancer agents based on their mode of action have been critically discussed. A careful observation has been made into pharmacologically active imidazoles with better or equal therapeutic effects compared to well-known imidazole-based anticancer drugs, which are available on the market. A brief discussion of the toxicities of imidazoles has been made. Finally, the current challenges and future perspectives of imidazole based anticancer drug development are conferred.
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Affiliation(s)
- Imran Ali
- Department of Chemistry , Jamia Millia Islamia (Central University) , New Delhi-110025 , India . ;
| | - Mohammad Nadeem Lone
- Department of Chemistry , Jamia Millia Islamia (Central University) , New Delhi-110025 , India . ;
| | - Haasan Y Aboul-Enein
- Pharmaceutical and Medicinal Chemistry Department , Pharmaceutical and Drug Industries Research Division , National Research Centre , Dokki , Giza 12622 , Egypt
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21
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Anguru MR, Taduri AK, Bhoomireddy RD, Jojula M, Gunda SK. Novel drug targets for Mycobacterium tuberculosis: 2-heterostyrylbenzimidazoles as inhibitors of cell wall protein synthesis. Chem Cent J 2017; 11:68. [PMID: 29086847 PMCID: PMC5524660 DOI: 10.1186/s13065-017-0295-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Accepted: 07/11/2017] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Multi drug-resistant and mycobacterial infections are a major public health challenge, leading to high mortality and socioeconomic burdens through worldwide. Novel therapeutics are necessary to treat the drug resistant strains, since no new chemical entities are emerged in the last four decades for the treatment of TB. FINDINGS A series of novel 2-heterostyrylbenzimidazole derivatives were synthesised by cyclisation of (3,4-diaminophenyl)(phenyl)methanone, cinnamic acid using glycerol in high yield. The molecular structures of target compounds (5a-5n) were confirmed by 1H and 13C NMR spectroscopy and mass spectrometry. Newly synthesized compounds were screened for anti-tubercular activity and the MIC was determined against Mycobacterium tuberculosis H37Rv by broth microdilution method using Lowenstein Jensen medium (LJ). These compounds docked into the active site of "Crystal structure of pantothenate synthetase in complex with 2-(2-(benzofuran-2-ylsulfonylcarbamoyl)-5-methoxy-1H-indol-1-yl)acetic acid" (PDB code, 3IVX). Auto dock 4.2 software was used for docking studies. RESULTS 5d, 5e, 5f, 5g, 5i, and 5l show better activity and the most active inhibitor of tuberculosis 5f showed a promising inhibition of M. tuberculosis with MIC value of 16 μg/mL. The molecules functionalized with electron-donating groups (Cl, O, S, etc.) on different aromatic aldehydes (5a-5n) were found to be more active in inhibiting M. tuberculosis. CONCLUSIONS On the basis of docking studies, 5f has shown good affinity for the enzyme. Comparison was made with the binding energies of the standard drugs amoxicillin (-34.28 kcal/mol) and ciprofloxacin (-28.20 kcal/mol). Among all the designed compounds, the compound 5f shows highest binding energy with two amino acid interactions Lys160, Val187 (-9.80 kcal/mol).
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Affiliation(s)
- Mohana Rao Anguru
- Department of Chemistry, College of Engineering, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad, 500 085 India
| | - Ashok Kumar Taduri
- Department of Chemistry, College of Engineering, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad, 500 085 India
| | - Rama Devi Bhoomireddy
- Department of Chemistry, College of Engineering, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad, 500 085 India
| | - Malathi Jojula
- Department of Microbiology, Sri Shivani College of Pharmacy, Warangal, 506002 India
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22
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Ismail MM, Refaat HM, Kamel MM, Nemr MTM. Application of Resin-Bound Reagents for the Synthesis of Benzimidazole Derivatives. JOURNAL OF CHEMICAL RESEARCH 2016. [DOI: 10.3184/174751916x14665014807629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In an efficient exploitation of solid-phase chemistry, this work describes the preparation of the new resin-bound 4-( N-arylamino)-3-aminobenzoates and their successful cyclocondensations with the sodium bisulfite adducts of different aldehydes and triethyl orthoformate or triethyl orthoacetate, followed by resin cleavage to produce the target 1,2-diaryl- and 1-aryl-2-(un)substituted benzimidazole-5-carboxylic acid derivatives, respectively. In another variation, the cyclocondensation of the resin-bound 4-( N-arylamino)-3-aminobenzoates with carbon disulfide afforded the corresponding resin-bound thioxobenzimidazoles, which upon cleavage gave the corresponding 2-thioxobenzimidazoles. S-Alkylation of the resin-bound thioxobenzimidazoles with benzyl chloride and 4-bromophenacyl bromide furnished 2-benzylsulfanyl benzimidazoles and 4-bromophenyl-2-oxoethylsulfanyl-benzimidazoles, respectively. Reacting the resin-bound 4-( N-arylamino)-3-aminobenzoates with phenyl isothiocyanate gave the open-form 4-(arylamino)-3-(3-phenylthioureido) benzoic acids. Moreover, the reaction of the resin-bound 4-( N-arylamino)-3-aminobenzoates with N,N-carbonyldiimidazole yielded the corresponding 2-bezimidazolones.
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Affiliation(s)
- M. Mohsen Ismail
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Eini Street, 11562 Cairo, Egypt
- Pharmaceutical Organic Chemistry Department, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, 6th of October City, PO Box 77, Giza, Egypt
| | - Hanan M. Refaat
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Eini Street, 11562 Cairo, Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University, New Cairo, 11307 Cairo, Egypt
| | - Mona M. Kamel
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Eini Street, 11562 Cairo, Egypt
| | - M. Tawfik Mohamed Nemr
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Eini Street, 11562 Cairo, Egypt
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23
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Keiko NA, Vchislo NV. Synthesis of Diheteroatomic Five-Membered Heterocyclic Compounds from α,β-Unsaturated Aldehydes. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600227] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- N. A. Keiko
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky Street 664033 Irkutsk Russian Federation
| | - N. V. Vchislo
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky Street 664033 Irkutsk Russian Federation
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24
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Ajani OO, Aderohunmu DV, Ikpo CO, Adedapo AE, Olanrewaju IO. Functionalized Benzimidazole Scaffolds: Privileged Heterocycle for Drug Design in Therapeutic Medicine. Arch Pharm (Weinheim) 2016; 349:475-506. [PMID: 27213292 DOI: 10.1002/ardp.201500464] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 04/14/2016] [Accepted: 04/22/2016] [Indexed: 01/09/2023]
Abstract
Benzimidazole derivatives are crucial structural scaffolds found in diverse libraries of biologically active compounds which are therapeutically useful agents in drug discovery and medicinal research. They are structural isosteres of naturally occurring nucleotides, which allows them to interact with the biopolymers of living systems. Hence, there is a need to couple the latest information with the earlier documentations to understand the current status of the benzimidazole nucleus in medicinal chemistry research. This present work unveils the benzimidazole core as a multifunctional nucleus that serves as a resourceful tool of information for synthetic modifications of old existing candidates in order to tackle drug resistance bottlenecks in therapeutic medicine. This manuscript deals with the recent advances in the synthesis of benzimidazole derivatives, the widespread biological activities as well as pharmacokinetic reports. These present them as a toolbox for fighting infectious diseases and also make them excellent candidates for future drug design.
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Affiliation(s)
- Olayinka O Ajani
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
| | - Damilola V Aderohunmu
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
| | - Chinwe O Ikpo
- Department of Chemistry, University of the Western Cape, Bellville, Cape Town, South Africa
| | - Adebusayo E Adedapo
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
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25
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Fadda AA, Rabie R, Etman HA. Synthesis of Thiazolinone, Aminopyrazole, Pyrazolopyrimidine, and Pyrazolotriazine Derivatives Starting from 1-Naphthyl-2-Cyanoacetamide. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2669] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ahmed A. Fadda
- Chemistry Department, Faculty of Science; Mansoura University; Mansoura Egypt
| | - Ramy Rabie
- Chemistry Department, Faculty of Science; Mansoura University; Mansoura Egypt
| | - Hassan A. Etman
- Chemistry Department, Faculty of Science; Mansoura University; Mansoura Egypt
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26
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SHARMA PANKAJ, GUPTA MONIKA. 1,3,5-Trimethylpyrazolium chloride based ionogel as an efficient and reusable heterogeneous catalyst for the synthesis of benzimidazoles. J CHEM SCI 2016. [DOI: 10.1007/s12039-015-1000-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Strelciunaite V, Jonuskiene I, Anusevicius K, Tumosiene I, Siugzdaite J, Ramanauskaite I, Mickevicius V. Synthesis of Novel Benzimidazoles 2-Functionalized with Pyrrolidinone and γ-Amino Acid with a High Antibacterial Activity. HETEROCYCLES 2016. [DOI: 10.3987/com-15-13343] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Mishra A, Srivastava M, Rai P, Yadav S, Tripathi BP, Singh J, Singh J. Visible light triggered, catalyst free approach for the synthesis of thiazoles and imidazo[2,1-b]thiazoles in EtOH : H2O green medium. RSC Adv 2016. [DOI: 10.1039/c6ra05385h] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A catalyst free visible light assisted synthesis of thiazoles and imidazo[2,1-b]thiazoles in EtOH : H2O green medium.
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Affiliation(s)
- Anu Mishra
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Madhulika Srivastava
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Pratibha Rai
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Snehlata Yadav
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Bhartendu Pati Tripathi
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Jaya Singh
- Department of Chemistry
- LRPG College
- Sahibabad
- India
| | - Jagdamba Singh
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
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29
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Sharifi A, Ghonouei N, Abaee MS. Ethylene glycol, an efficient and recoverable medium for copper-catalyzedN-arylation of diazoles under microwave irradiation. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1135347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Chen ZZ, Li SQ, Liao WL, Xie ZG, Wang MS, Cao Y, Zhang J, Xu ZG. Efficient method for the synthesis of fused benzimidazole–imidazoles via deprotection and cyclization reactions. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Shaker YM, Omar MA, Mahmoud K, Elhallouty SM, El-Senousy WM, Ali MM, Mahmoud AE, Abdel-Halim AH, Soliman SM, El Diwani HI. Synthesis, in vitro and in vivo antitumor and antiviral activity of novel 1-substituted benzimidazole derivatives. J Enzyme Inhib Med Chem 2015; 30:826-45. [DOI: 10.3109/14756366.2014.979344] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
| | | | | | | | | | - Mamdouh M. Ali
- Biochemistry Department, Division of Genetic Engineering and Biotechnology, National Research Centre, Dokki, Cairo, Egypt, and
| | - Abeer E. Mahmoud
- Biochemistry Department, Division of Genetic Engineering and Biotechnology, National Research Centre, Dokki, Cairo, Egypt, and
| | - Abeer H. Abdel-Halim
- Biochemistry Department, Division of Genetic Engineering and Biotechnology, National Research Centre, Dokki, Cairo, Egypt, and
| | - Saeed M. Soliman
- Radiation Biology Department, National Centre for Radiation Research, Cairo, Egypt
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32
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Efficient synthetic access to novel N-(Pyrimidinyl)-N-(1H-benzo[d]imidazolyl)amines in an aqueous medium. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1524-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Cardozo VA, Sánchez-Obregón R, Salgado-Zamora H, Jiménez-Juárez R. Bentonite clay: an efficient catalyst for the synthesis of 2-substituted benzimidazoles. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1423-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Kamal A, Rao AVS, Nayak VL, Reddy NVS, Swapna K, Ramakrishna G, Alvala M. Synthesis and biological evaluation of imidazo[1,5-a]pyridine-benzimidazole hybrids as inhibitors of both tubulin polymerization and PI3K/Akt pathway. Org Biomol Chem 2015; 12:9864-80. [PMID: 25354805 DOI: 10.1039/c4ob01930j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A series of imidazo[1,5-a]pyridine-benzimidazole hybrids (5a–aa) were prepared and evaluated for their cytotoxic activity against a panel of sixty human tumor cell lines. Among them compounds 5d and 5l showed significant cytotoxic activity with GI50 values ranging from 1.06 to 14.9 μM and 0.43 to 7.73 μM, respectively. Flow cytometric analysis revealed that these compounds arrest the cell cycle at G2/M phase and induced cell death by apoptosis. The tubulin polymerization assay (IC50 of 5d is 3.25 μM and 5l is 1.71 μM) and immunofluorescence analysis showed that these compounds effectively inhibited the microtubule assembly in human breast cancer cells (MCF-7). Further, the apoptotic effects of compounds were confirmed by Hoechst staining, mitochondrial membrane potential, cytochrome c release, ROS generation, caspase 9 activation and DNA fragmentation analysis. After treatment with these compounds for 48 h, p-PTEN and p-AKT levels were markedly decreased. Moreover, these compounds did not significantly inhibit the normal human embryonic kidney cells, HEK-293. The molecular docking simulations predicted the binding interactions of 5d and 5l with colchicine binding site of the tubulin, which is in compliance with the antiproliferative activity data.
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Affiliation(s)
- Ahmed Kamal
- Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India.
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35
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Dao-Huy T, Waldner BJ, Wimmer L, Schnürch M, Mihovilovic MD. Synthesis ofendo- andexo-N-Protected 5-Arylated 2-Aminothiazoles through Direct Arylation: An Efficient Route to Cell Differentiation Accelerators. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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36
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Sunke R, Babu PV, Yellanki S, Medishetti R, Kulkarni P, Pal M. Ligand-free MCR for linking quinoxaline framework with a benzimidazole nucleus: a new strategy for the identification of novel hybrid molecules as potential inducers of apoptosis. Org Biomol Chem 2015; 12:6800-5. [PMID: 25066016 DOI: 10.1039/c4ob01268b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a true MCR involving the reaction of N-(prop-2-ynyl)quinoxalin-2-amine derivatives with 2-iodoanilines and tosyl azide in the presence of 10 mol% of CuI and Et3N in DMSO to afford the pre-designed hybrid molecules containing quinoxaline framework linked with a benzimidazole nucleus. The MCR proceeds in the absence of any ligand and/or lateral addition of the catalyst/base affording products within 30 min in good yields, some of which showed encouraging apoptosis inducing properties in zebrafish.
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Affiliation(s)
- Rajnikanth Sunke
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India.
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37
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Selective colorimetric sensing of fluoride ion and its use for insitu cyclization of the sensor. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.12.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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38
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Menteşe E, Ülker S, Kahveci B. Synthesis and Study of α-Glucosidase Inhibitory, Antimicrobial and Antioxidant Activities of Some Benzimidazole Derivatives Containing Triazole, Thiadiazole, Oxadiazole, and Morpholine Rings. Chem Heterocycl Compd (N Y) 2015. [DOI: 10.1007/s10593-015-1637-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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39
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A. Raslan M, M. Sayed S, A. Khalil M. Reactivity of 2-(1-Methyl-1H-benzo[d]imidazol-2-yl)-2-nitrosoacetonitrile: A Facile One-Pot Synthesis of Benzimidazo[1,2-a]piperazine Derivatives. HETEROCYCLES 2015. [DOI: 10.3987/com-14-13160] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Li Q, Wang HT, Ye Q. One- and two-dimensional Cd(II) coordination polymers constructed from 2-(2-methyl-1H-benzimidazol-1-yl)acetate ligands. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2014; 70:992-7. [PMID: 25279603 DOI: 10.1107/s2053229614020853] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 09/17/2014] [Indexed: 11/10/2022]
Abstract
The one- and two-dimensional polymorphic cadmium polycarboxylate coordination polymers, catena-poly[bis[μ2-2-(2-methyl-1H-benzimidazol-1-yl)acetato-κ(3)N(3):O,O']cadmium(II)], [Cd(C10H9N2O2)2]n, and poly[bis[μ2-2-(2-methyl-1H-benzimidazol-1-yl)acetato-κ(3)N(3):O,O']cadmium(II)], also [Cd(C10H9N2O2)2]n, were prepared under solvothermal conditions. In each structure, each Cd(II) atom is coordinated by four O atoms and two N atoms from four different ligands. In the former structure, two crystallographically independent Cd(II) atoms are located on twofold symmetry axes and doubly bridged in a μ2-N:O,O'-mode by the ligands into correspondingly independent chains that run in the [100] and [010] directions. Chains containing crystallographically related Cd(II) atoms are linked into sheets via π-π stacking interactions. Sheets containing one of the distinct types of Cd(II) atom are stacked perpendicular to [001] and alternate with sheets containing the other type of Cd(II) atom. The second complex is a two-dimensional homometallic Cd(II) (4,4) net structure in which each Cd(II) atom is singly bridged to four neighbouring Cd(II) atoms by four ligands also acting in a μ2-N:O,O'-mode. A square-grid network results and the three-dimensional supramolecular framework is completed by π-π stacking interactions between the aromatic ring systems.
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Affiliation(s)
- Qiang Li
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Hui-Ting Wang
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Qiong Ye
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
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41
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Kalalbandi VKA, Seetharamappa J, Katrahalli U, Bhat KG. Synthesis, crystal studies, anti-tuberculosis and cytotoxic studies of 1-[(2E)-3-phenylprop-2-enoyl]-1H-benzimidazole derivatives. Eur J Med Chem 2014; 79:194-202. [DOI: 10.1016/j.ejmech.2014.04.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 04/01/2014] [Accepted: 04/04/2014] [Indexed: 10/25/2022]
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42
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Sheikhi M, Hashemi M, Monajjemi M. DFT Study on 4(5)-Imidazole-carbaldehyde-N(5)-phenylthiosemicarbazone (ImTPh): NMR Shielding Tensors, Thermodynamic Parameters, NBO Analysis, Molecular Electrostatic Potential (MEP), HOMO and LUMO Studies. ACTA ACUST UNITED AC 2014. [DOI: 10.13005/ojc/300146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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43
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Singla P, Luxami V, Paul K. Benzimidazole-biologically attractive scaffold for protein kinase inhibitors. RSC Adv 2014. [DOI: 10.1039/c3ra46304d] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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44
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Zhang XL, Liu AL, Zhao Y, Xiong LX, Li ZM. Synthesis and biological activity of novel anthranilic diamides containing N-substituted arylmethylene moieties. Chem Res Chin Univ 2013. [DOI: 10.1007/s40242-013-3038-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Mohil R, Kumar D, Mor S. Synthesis and Antimicrobial Activity of Some 1,3-Disubstituted Indeno[1,2-c]pyrazoles. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1081] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Rajni Mohil
- Department of Chemistry; Guru Jambheshwar University of Science and Technology; Hisar-125001 Haryana India
| | - Devinder Kumar
- Department of Chemistry; Guru Jambheshwar University of Science and Technology; Hisar-125001 Haryana India
| | - Satbir Mor
- Department of Chemistry; Guru Jambheshwar University of Science and Technology; Hisar-125001 Haryana India
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46
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Mohamed SK, Mague JT, Akkurt M, Hassan AA, Albayati MR. (1Z,2E)-1-(3,4-Diphenyl-2,3-di-hydro-1,3-thia-zol-2-yl-idene)-2-(1-p-tolyl-ethyl-idene)hydrazine. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o1324. [PMID: 24109396 PMCID: PMC3793809 DOI: 10.1107/s1600536813020254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 07/22/2013] [Indexed: 11/10/2022]
Abstract
In the title compound, C24H21N3S, the thiazole ring makes dihedral angles of 52.03 (6), 62.63 (6) and 12.35 (6)°, respectively, with the two phenyl rings and the benzene ring. In the crystal, weak C—H⋯π interactions occur between inversion-related molecules.
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Affiliation(s)
- Shaaban K Mohamed
- Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England ; Chemistry Department, Faculty of Science, Mini University, 61519 El-Minia, Egypt
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47
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Sudhesh P, Tamilarasan K, Arumugam P, Berchmans S. Nitric oxide releasing photoresponsive nanohybrids as excellent therapeutic agent for cervical cancer cell lines. ACS APPLIED MATERIALS & INTERFACES 2013; 5:8263-8266. [PMID: 23952053 DOI: 10.1021/am402086m] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Gold nanoparticles (GNPs) that can release nitric oxide (NO) on visible-light irradiation were prepared using 2-mercapto-5-nitro benzimidazole (MNBI) as stabilizer. These nanoparticles meet overall prerequisites for biomedical applications like small sizes, water solubility, and stability. It was found that even a very low dosage of MNBI-stabilized GNPs exhibit appreciable tumor cell mortality against cervical cancer cell lines, demonstrating the role of NO in killing cancer cells.
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Affiliation(s)
- Priya Sudhesh
- Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute , Karaikudi, Tamilnadu 630006, India
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48
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Wang YL, Luo J, Liu ZL. 8-Hydroxyquinoline Functionalized PEG-1000 Bridged Dicationic Ionic Liquid as a Novel Ligand for Copper-catalyzedN-Arylation of Imidazoles. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201300008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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49
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Design, synthesis and antiproliferative properties of some new 5-substituted-2-iminobenzimidazole derivatives. Eur J Med Chem 2013; 63:696-701. [DOI: 10.1016/j.ejmech.2013.03.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 03/03/2013] [Accepted: 03/05/2013] [Indexed: 11/23/2022]
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50
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El-Essawy FA, El-Sayed WA, El-Etrawy AS, El-Bayaa MN. Synthesis of New Isolated and Fused Tri- and Tetracyclic Pyridine Derivatives. Chem Heterocycl Compd (N Y) 2013. [DOI: 10.1007/s10593-013-1219-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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