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Karmakar R, Mukhopadhyay C. Synthesis of new horizons in benzothiazole scaffold and used in anticancer drug development. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Benzothiazole scaffolds exhibit exciting medicinal properties including anticancer. In recent time most complicated job for every researcher is to discover a novel drug that can treat cancer with minimal side effects. Some heterocyclic anticancer drugs including daunorubicin, 5-flourouracil, doxorubicin, methotrexate, etc. are markedly available. In addition, few natural products such as vincristine alongwith vinblastine are used as anticancer drugs. More than 90% of the novel drugs bearing heterocyclic moieties have always been main portions in the development of anticancer drugs. Heterocyclic compounds containing benzothiazole moiety show a superior pharmaceutical effect than non-nitrogen compounds. These N-/S-containing benzothiazole compounds, the heart of drug discovery, present a significant and valuable group of molecules that play a chief and vital role in our living cells. This chapter recites the weightage of benzothiazole nuclei in the progress of anticancer drugs.
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Affiliation(s)
- Rajiv Karmakar
- Department of Chemistry , University of Calcutta , 92 APC Road , Kolkata 700009 , India
- Department of Chemistry , Dum Dum Motijheel College, West Bengal State University , Kolkata 700074 , India
| | - Chhanda Mukhopadhyay
- Department of Chemistry , University of Calcutta , 92 APC Road , Kolkata 700009 , India
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2
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3
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Dhawale KD, Ingale AP, Shinde SV, Thorat NM, Patil LR. ZnO-NPs catalyzed condensation of 2-aminothiophenol and aryl/alkyl nitriles: Efficient green synthesis of 2-substituted benzothiazoles. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1894577] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kiran D. Dhawale
- Department of Chemistry, Rao Bahadur Narayan Borawake College, Ahmednagar, India
| | - Ajit P. Ingale
- Department of Chemistry, Dada Patil College, Ahmednagar, India
| | | | - Nitin M. Thorat
- Department of Chemistry, Maharaja Jivajirao Shinde College, Ahmednagar, India
| | - Limbraj R. Patil
- Department of Chemistry, Maharaja Jivajirao Shinde College, Ahmednagar, India
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4
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Bolakatti G, Palkar M, Katagi M, Hampannavar G, Karpoormath RV, Ninganagouda S, Badiger A. Novel series of benzo[d]thiazolyl substituted-2-quinolone hybrids: Design, synthesis, biological evaluation and in-silico insights. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Studentsov EP, Golovina AA, Krasikova RN, Orlovskaja VV, Vaulina DD, Krutikov VI, Ramsh SM. 2-Arylbenzothiazoles: Advances in Anti-Cancer and Diagnostic
Pharmaceuticals Discovery. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Investigation on spectra (UV–Vis, vibrational, NMR, HRMS), electronic structure (DFT calculations), molecular docking and antidiabetic activity of N-((benzo[d]thiazol-2-ylthio)methyl)-N-cyclohexylcyclohexanamine – A Mannich base. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128604] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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7
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Osmaniye D, Korkut Çelikateş B, Sağlık BN, Levent S, Acar Çevik U, Kaya Çavuşoğlu B, Ilgın S, Özkay Y, Kaplancıklı ZA. Synthesis of some new benzoxazole derivatives and investigation of their anticancer activities. Eur J Med Chem 2020; 210:112979. [PMID: 33183865 DOI: 10.1016/j.ejmech.2020.112979] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 10/19/2020] [Accepted: 10/27/2020] [Indexed: 12/01/2022]
Abstract
Phortress is an anticancer prodrug, which has active metabolite (5F-203) being potent agonist of the aryl hydrocarbon receptor (AhR). The 5F-203 switches on cytochrome P450 CYP1A1 gene expression and thus exhibits anticancer activity. In this study, it is aimed to obtain new phortress analogues by bioisosteric replacement of benzothiazole core in the structure to benzoxazole ring system. Synthesis of compounds (3a-3p) were performed according to literature methods. Their structures were elucidated by IR, 1H NMR, 13C NMR, 2D-NMR and HRMS spectroscopic methods. Cytotoxicity (MTT), inhibition of DNA synthesis and flow cytometric analysis assays were applied to determine anticancer activity of the compounds on colon (HT-29), breast (MCF7), lung (A549), liver (HepG2) and brain (C6) carcinoma cell types. When compared reference agent doxorubicin, compounds 3m and 3n displayed very attractive anticancer effect against carcinogenic cell lines. Due to structural similarity to phortress, biotransformation studies for 3m and 3n were examined by LCMS-IT-TOF system and probable metabolites of these compounds were determined. Induction potential of these compounds on CYP1A1/2 enzymes was also investigated to clarify possible mechanism of action. Interaction modes between CYP1A1 enzyme and compound 3n or its some metabolites were investigated by docking studies. In conclusion, findings of these study indicate that compounds 3m and 3n possess significant anticancer activity, probably with the same mechanism of action to Phortress.
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Affiliation(s)
- Derya Osmaniye
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey; Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
| | - Büşra Korkut Çelikateş
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
| | - Begüm Nurpelin Sağlık
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey; Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
| | - Serkan Levent
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey; Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
| | - Ulviye Acar Çevik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey; Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
| | - Betül Kaya Çavuşoğlu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bulent Ecevit University, 67600, Zonguldak, Turkey
| | - Sinem Ilgın
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
| | - Yusuf Özkay
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey; Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey.
| | - Zafer Asım Kaplancıklı
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
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8
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Unsalan O, Arı H, Altunayar-Unsalan C, Bolelli K, Boyukata M, Yalcin I. FTIR, Raman and DFT studies on 2-[4-(4-ethylbenzamido)phenyl]benzothiazole and 2-[4-(4-nitrobenzamido)phenyl]benzothiazole supported by differential scanning calorimetry. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Omar AMME, AboulWafa OM, El-Shoukrofy MS, Amr ME. Benzoxazole derivatives as new generation of anti-breast cancer agents. Bioorg Chem 2020; 96:103593. [PMID: 32004897 DOI: 10.1016/j.bioorg.2020.103593] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 01/17/2020] [Accepted: 01/18/2020] [Indexed: 12/14/2022]
Abstract
New 2-substituted benzoxazole derivatives were synthesized and screened for their in vitro anti-proliferative activities against MCF-7 and MDA-MB-231 cell lines. Compounds 4b, 4d and 11c eliciting the highest activity against MCF-7 cells were further assayed for their cytotoxic activities against A431 and HCC827 cancer cells in addition to their in vitro inhibition of wild and mutated epidermal growth factor receptor (EGFR) enzymes. Compound 11c was the most active against A431 cells and it displayed a potent inhibition of EGFRWT while compounds 4b and 4d elicited higher potencies than erlotinib against mutated EGFRL858R. Compounds 4a, 6c and 8a showed the most potent cytotoxic activity against MDA-MB-231 cancer cells where compounds 4a and 6c were slightly less potent aromatase (ARO) inhibitors than letrozole. MCF-7 cells treated with compounds 4b, 4d, 11c and MDA-MB-231 cells treated with compounds 4a, 6c and 8a showed remarkable over-expression of caspase-9 protein level and elicited pre G1 apoptosis and cell cycle arrest at G2/M phase in addition to high annexin V binding affinity indicating significant apoptosis. Chemo-informatic and docking properties were also predicted. Docking results revealed that docked compounds displayed binding modes with EGFR and ARO enzymes comparable to that of the reference ligands. The benzoxazole derivatives 11c and 6c possessing amide and dithiocarbamate moieties respectively were found to be potent apoptosis-inducing anti-breast cancer agents with acceptable physicochemical properties. They exert their activity via inhibition of EGFR and ARO enzymes respectively.
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Affiliation(s)
- A-Mohsen M E Omar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Omaima M AboulWafa
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Mai S El-Shoukrofy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt.
| | - Mai E Amr
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
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10
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Zhou Y, Gan F, Zhang Y, He X, Shen C, Qiu H, Liu P. Selective Killing of Cancer Cells by Nonplanar Aromatic Hydrocarbon-Induced DNA Damage. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1901341. [PMID: 31728285 PMCID: PMC6839640 DOI: 10.1002/advs.201901341] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/26/2019] [Indexed: 05/05/2023]
Abstract
A large number of current chemotherapeutic agents prevent the growth of tumors by inhibiting DNA synthesis of cancer cells. It has been found recently that many planar polycyclic aromatic hydrocarbons (PAHs) derivatives, previously known as carcinogenic, display anticancer activity through DNA cross-linking. However, the practical use of these PAHs is substantially limited by their low therapeutic efficiency and selectivity toward most tumors. Herein, the anticancer property of a nonplanar PAH named [4]helicenium, which exhibits highly selective cytotoxicity toward liver, lung cancer, and leukemia cells compared with normal cells, is reported. Moreover, [4]helicenium effectively inhibits tumor growth in liver cancer-bearing mice and shows little side effects in normal mice. RNA sequencing and confirmatory results demonstrate that [4]helicenium induces more DNA damage in tumor cells than in normal cells, resulting in tumor cell cycle arrest and apoptosis increment. This study reveals an unexpected role and molecular mechanism for PAHs in selectively killing tumor cells and provides an effective strategy for precision cancer therapies.
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Affiliation(s)
- Yan Zhou
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
- Central LaboratoryRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Fuwei Gan
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai200240China
| | - Yuanliang Zhang
- State Key Laboratory of Medical GenomicsShanghai Institute of HematologyRuijin HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200025China
| | - Xiaozhen He
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
- Central LaboratoryRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Chengshuo Shen
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai200240China
| | - Huibin Qiu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai200240China
| | - Peifeng Liu
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
- Central LaboratoryRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
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11
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Narva S, Chitti S, Amaroju S, Goud S, Alvala M, Bhattacharjee D, Jain N, Kondapalli Venkata Gowri CS. Design, Synthesis, and Biological Evaluation of 2-(4-Aminophenyl)benzothiazole Analogues as Antiproliferative Agents. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3427] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Suresh Narva
- Department of Chemistry; Birla Institute of Technology and Science; Pilani, Hyderabad Campus, Jawahar Nagar Hyderabad 500078 Telangana India
| | - Surendar Chitti
- Department of Chemistry; Birla Institute of Technology and Science; Pilani, Hyderabad Campus, Jawahar Nagar Hyderabad 500078 Telangana India
| | - Suresh Amaroju
- Department of Chemistry; Birla Institute of Technology and Science; Pilani, Hyderabad Campus, Jawahar Nagar Hyderabad 500078 Telangana India
| | - Sridhar Goud
- National Institute of Pharmaceutical Education and Research-Hyderabad; Hyderabad 500037 Telangana India
| | - Mallika Alvala
- National Institute of Pharmaceutical Education and Research-Hyderabad; Hyderabad 500037 Telangana India
| | - Debanjan Bhattacharjee
- Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 Telangana India
| | - Nishant Jain
- Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 Telangana India
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12
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Malarkodi H, Saminathan M, Ezhilarasi R, Murugan D, Ponnuswamy A. Molecular Structure, Spectral, Electronic and Thermodynamic, First-Order Hyperpolarizability, NBO and Molecular Docking Studies of Novel Acenaphthylene Pyrrolidine Derivative. ChemistrySelect 2018. [DOI: 10.1002/slct.201802535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Helda Malarkodi
- Department of Physics; Research Scholar in Bharathiar University, Coimbatore; Tamil Nadu India
| | - Murugavel Saminathan
- Department of Physics; Thanthai Periyar Government Institute of Technology; Vellore 632 002 Tamil Nadu India
| | | | - Dinesh Murugan
- Department of Organic Chemistry; Madurai Kamaraj University; Madurai- 625021 Tamilnadu India
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13
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L'abbate FP, Müller R, Openshaw R, Combrinck JM, de Villiers KA, Hunter R, Egan TJ. Hemozoin inhibiting 2-phenylbenzimidazoles active against malaria parasites. Eur J Med Chem 2018; 159:243-254. [PMID: 30296683 DOI: 10.1016/j.ejmech.2018.09.060] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/22/2018] [Accepted: 09/24/2018] [Indexed: 12/23/2022]
Abstract
The 2-phenylbenzimidazole scaffold has recently been discovered to inhibit β-hematin (synthetic hemozoin) formation by high throughput screening. Here, a library of 325,728 N-4-(1H-benzo[d]imidazol-2-yl)aryl)benzamides was enumerated, and Bayesian statistics used to predict β-hematin and Plasmodium falciparum growth inhibition. Filtering predicted inactives and compounds with negligible aqueous solubility reduced the library to 35,124. Further narrowing to compounds with terminal aryl ring substituents only, reduced the library to 18, 83% of which were found to inhibit β-hematin formation <100 μM and 50% parasite growth <2 μM. Four compounds showed nanomolar parasite growth inhibition activities, no cross-resistance in a chloroquine resistant strain and low cytotoxicity. QSAR analysis showed a strong association of parasite growth inhibition with inhibition of β-hematin formation and the most active compound inhibited hemozoin formation in P. falciparum, with consequent increasing exchangeable heme. Pioneering use of molecular docking for this system demonstrated predictive ability and could rationalize observed structure activity trends.
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Affiliation(s)
- Fabrizio P L'abbate
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa
| | - Ronel Müller
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Roxanne Openshaw
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa
| | - Jill M Combrinck
- Department of Medicine, Division of Clinical Pharmacology, University of Cape Town, Observatory, 7925, South Africa
| | - Katherine A de Villiers
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Roger Hunter
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa
| | - Timothy J Egan
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa; Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch, 7701, South Africa.
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14
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Venugopala KN, Khedr MA, Pillay M, Nayak SK, Chandrashekharappa S, Aldhubiab BE, Harsha S, Attimard M, Odhav B. Benzothiazole analogs as potential anti-TB agents: computational input and molecular dynamics. J Biomol Struct Dyn 2018; 37:1830-1842. [PMID: 29697293 DOI: 10.1080/07391102.2018.1470035] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Biotin is very important for the survival of Mycobacterium tuberculosis. 7,8-Diamino pelargonic acid aminotransaminase (DAPA) is a transaminase enzyme involved in the biosynthesis of biotin. The benzothiazole title compounds were investigated for their in vitro anti-tubercular activity against two tubercular strains: H37Rv (ATCC 25,177) and MDR-MTB (multidrug-resistant M. tuberculosis, resistant to isoniazid, rifampicin, and ethambutol) by an agar incorporation method. The possible binding mode and predicted affinity were computed using a molecular docking study. Among the synthesized compounds in the series, the title compound {2-(benzo[d]thiazol-2-yl-methoxy)-5-fluorophenyl}-(4-chlorophenyl)-methanone was found to exhibit significant activity with minimum inhibitory concentrations of 1 μg/mL and 2 μg/mL against H37Rv and MDR-MTB, respectively; this compound showed the highest binding affinity (-24.75 kcal/mol) as well.
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Affiliation(s)
- Katharigatta N Venugopala
- a Department of Pharmaceutical Sciences, College of Clinical Pharmacy , King Faisal University , Al-Ahsa , 31982 , Kingdom of Saudi Arabia.,b Department of Biotechnology and Food Technology , Durban University of Technology , Durban , 4001 , South Africa
| | - Mohammed A Khedr
- a Department of Pharmaceutical Sciences, College of Clinical Pharmacy , King Faisal University , Al-Ahsa , 31982 , Kingdom of Saudi Arabia.,c Faculty of Pharmacy, Department of Pharmaceutical Chemistry , Helwan University , Ein Helwan, Cairo , 11795 , Egypt
| | - Melendhran Pillay
- d Department of Microbiology , National Health Laboratory Services, KZN Academic Complex, Inkosi Albert Luthuli Central Hospital , Durban , 4001 , South Africa
| | - Susanta K Nayak
- e Department of Chemistry , Visvesvaraya National Institute of Technology , Nagpur , Maharashtra , 440010 , India
| | - Sandeep Chandrashekharappa
- f Institute for Stem Cell Biology and Regenerative Medicine , NCBS, TIFR, GKVK, Bellary Road, Bangalore , 560 065 , India
| | - Bandar E Aldhubiab
- a Department of Pharmaceutical Sciences, College of Clinical Pharmacy , King Faisal University , Al-Ahsa , 31982 , Kingdom of Saudi Arabia
| | - Sree Harsha
- a Department of Pharmaceutical Sciences, College of Clinical Pharmacy , King Faisal University , Al-Ahsa , 31982 , Kingdom of Saudi Arabia
| | - Mahesh Attimard
- a Department of Pharmaceutical Sciences, College of Clinical Pharmacy , King Faisal University , Al-Ahsa , 31982 , Kingdom of Saudi Arabia
| | - Bharti Odhav
- b Department of Biotechnology and Food Technology , Durban University of Technology , Durban , 4001 , South Africa
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15
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Labib MB, Philoppes JN, Lamie PF, Ahmed ER. Azole-hydrazone derivatives: Design, synthesis, in vitro biological evaluation, dual EGFR/HER2 inhibitory activity, cell cycle analysis and molecular docking study as anticancer agents. Bioorg Chem 2018; 76:67-80. [DOI: 10.1016/j.bioorg.2017.10.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 10/21/2017] [Accepted: 10/24/2017] [Indexed: 11/29/2022]
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16
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Needham R, Habtemariam A, Barry NPE, Clarkson G, Sadler PJ. Halide Control of N,N-Coordination versus N,C-Cyclometalation and Stereospecific Phenyl Ring Deuteration of Osmium(II) p-Cymene Phenylazobenzothiazole Complexes. Organometallics 2017; 36:4367-4375. [PMID: 29249848 PMCID: PMC5726741 DOI: 10.1021/acs.organomet.7b00501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Indexed: 11/29/2022]
Abstract
We report the synthesis of halido Os(II) p-cymene complexes bearing bidentate chelating phenylazobenzothiazole (AZBTZ) ligands. Unlike the analogous phenylazopyridine (AZPY) complexes, AZBTZ-NMe2 is capable of both N,N-coordination to Os(II) and cyclometalation to form N,C-coordinated species. N,C-Coordination occurs via an azo nitrogen and an ortho carbon on the aniline ring, as identified by 1H NMR and X-ray crystallography of [Os(p-cym)(N,N-AZBTZ-NMe2)Cl]PF6 (1a), [Os(p-cym)(N,N-AZBTZ-NMe2)Br]PF6 (2a), [Os(p-cym)(N,C-AZBTZ-NMe2)Br] (2b), and [Os(p-cym)(N,C-AZBTZ-NMe2)I] (3b). The N,C-coordinated species is more stable and is not readily converted to the N,N-coordinated complex. Analysis of the crystal structures suggests that their formation is influenced by steric interactions between the p-cym and AZBTZ-NMe2 ligands: in particular, larger monodentate halide ligands favor N,C-coordination. The complexes [Os(p-cym)(N,N-Me2-AZBTZ-NH2)Cl]PF6 (4) and [Os(p-cym)(N,N-Me2-AZBTZ-NH2)I]PF6 (5) were synthesized with methyl groups blocking the ortho positions on the aniline ring, forcing an N,N-coordination geometry. 1H NMR NOE experiments confirmed hindered rotation of the arene ligand and steric crowding around the metal center. Complex 2b exhibited unexpected behavior under acidic conditions, involving regiospecific deuteration of the aniline ring at the meta position, as observed by 1H NMR and high-resolution ESI-MS. Deuterium exchange occurs only under acidic conditions, suggesting an associative mechanism. The calculated partial charges on 2b show that the meta carbon is significantly more negatively charged, which may account for the regiospecificity of deuterium exchange.
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Affiliation(s)
- Russell
J. Needham
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
| | - Abraha Habtemariam
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
| | - Nicolas P. E. Barry
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Guy Clarkson
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
| | - Peter J. Sadler
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
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17
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Abdelgawad MA, Bakr RB, Omar HA. Design, synthesis and biological evaluation of some novel benzothiazole/benzoxazole and/or benzimidazole derivatives incorporating a pyrazole scaffold as antiproliferative agents. Bioorg Chem 2017; 74:82-90. [DOI: 10.1016/j.bioorg.2017.07.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 06/22/2017] [Accepted: 07/14/2017] [Indexed: 11/16/2022]
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18
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Belal A, Abdelgawad MA. New benzothiazole/benzoxazole-pyrazole hybrids with potential as COX inhibitors: design, synthesis and anticancer activity evaluation. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-016-2851-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Sahu PK. A green approach to the synthesis of a nano catalyst and the role of basicity, calcination, catalytic activity and aging in the green synthesis of 2-aryl bezimidazoles, benzothiazoles and benzoxazoles. RSC Adv 2017. [DOI: 10.1039/c6ra25293a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A green synthesis of hydrotalcite (a double layered catalyst) by a grinding method using Al/Mg molar ratios of 1.0–3.0 at room temperature is described.
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Affiliation(s)
- Pramod K. Sahu
- School of Studies in Chemistry
- Jiwaji University
- Gwalior-474011
- India
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Zuo Y, Wu Q, Su SW, Niu CW, Xi Z, Yang GF. Synthesis, Herbicidal Activity, and QSAR of Novel N-Benzothiazolyl- pyrimidine-2,4-diones as Protoporphyrinogen Oxidase Inhibitors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:552-62. [PMID: 26728549 DOI: 10.1021/acs.jafc.5b05378] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Protoporphyrinogen oxidase (PPO, E.C. 1.3.3.4) is known as a key action target for several structurally diverse herbicides. As a continuation of our research work on the development of new PPO-inhibiting herbicides, a series of novel 3-(2'-halo-5'-substituted-benzothiazol-1'-yl)-1-methyl-6-(trifluoromethyl)pyrimidine-2,4-diones 9 were designed and synthesized. The bioassay results indicated that a number of the newly synthesized compounds exhibited higher inhibition activity against tobacco PPO (mtPPO) than the controls, saflufenacil and sulfentrazone. Compound 9F-5 was identified as the most potent inhibitor with a Ki value of 0.0072 μM against mtPPO, showing about 4.2-fold and 1.4-fold higher potency than sulfentrazone (Ki = 0.03 μM) and saflufenacil (Ki = 0.01 μM), respectively. An additional green house assay demonstrated that compound 9F-6 (Ki = 0.012 μM) displayed the most promising postemergence herbicidal activity with a broad spectrum even at a concentration as low as 37.5 g of active ingredient (ai)/ha. Maize exhibits relative tolerance against compound 9F-6 at the dosage of 150 g ai/ha, but it is susceptible to saflufenacil even at 75 g ai/ha. Thus, compound 9F-6 exhibits the potential to be a new herbicide for weed control in maize fields.
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Affiliation(s)
- Yang Zuo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
| | - Qiongyou Wu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
| | - Sun-Wen Su
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
| | - Cong-Wei Niu
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, P. R. China
| | - Zhen Xi
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, P. R. China
| | - Guang-Fu Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
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Pharmacological investigation of 2-aminobenzothiazolium-4-methylbenzenesulphonate: Synthesis, spectral characterization and structural elucidation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 151:248-55. [PMID: 26318282 DOI: 10.1016/j.jphotobiol.2015.08.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 08/09/2015] [Accepted: 08/11/2015] [Indexed: 11/22/2022]
Abstract
An organic charge transfer complex, 2-aminobenzothiazolium-4-methylbenzenesulphonate (ABPTS) was synthesized and single crystals grown by slow solvent evaporation solution growth technique at ambient temperature. The single crystal X-ray diffraction analysis was carried out to establish the molecular structure of the title crystal. FT-IR spectral study was carried out to identify the various functional groups present in the crystal. The (1)H and (13)C spectra were recorded to further confirm the molecular structure of the CT complex. The TG/DTA analyses were carried out to establish the thermal stability of the complex. The antibacterial and antifungal activities of synthesized complex were examined against various bacteria and fungi strains, to identify the antibacterial and antifungal activity. The DNA binding profile of the complex has been investigated through absorption spectroscopy and complex has intrinsic binding constant 3.6 × 10(4) M(-1). A gel electrophoresis assay demonstrated the ability of the complex to cleave the pBR322 DNA. The free radical scavenging activity of the complex has been determined against DPPH, OH and ABTS radicals.
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22
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Kumar GJ, Kumar SN, Thummuri D, Adari LBS, Naidu VGM, Srinivas K, Rao VJ. Synthesis and characterization of new s-triazine bearing benzimidazole and benzothiazole derivatives as anticancer agents. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1430-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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23
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Che JY, Meng XS, Xu XY, Jiang S, Gu YC, Shi DQ. Synthesis and Herbicidal Evaluation of Novel Uracil Derivatives Containing Benzothiazol-2-yl Moiety. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2453] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jian-Yi Che
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry; Central China Normal University; Wuhan Hubei 430079 People's Republic of China
| | - Xiang-Suo Meng
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry; Central China Normal University; Wuhan Hubei 430079 People's Republic of China
| | - Xiao-Yun Xu
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry; Central China Normal University; Wuhan Hubei 430079 People's Republic of China
| | - Shan Jiang
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry; Central China Normal University; Wuhan Hubei 430079 People's Republic of China
| | - Yu-Cheng Gu
- Syngenta Jealott's Hill International Research Centre; Bracknell RG42 6EY United Kingdom
| | - De-Qing Shi
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry; Central China Normal University; Wuhan Hubei 430079 People's Republic of China
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24
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Rathi AK, Gawande MB, Zboril R, Varma RS. Microwave-assisted synthesis – Catalytic applications in aqueous media. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.01.011] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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25
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Synthesis of novel inhibitors of α-glucosidase based on the benzothiazole skeleton containing benzohydrazide moiety and their molecular docking studies. Eur J Med Chem 2015; 92:387-400. [DOI: 10.1016/j.ejmech.2015.01.009] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 11/28/2014] [Accepted: 01/06/2015] [Indexed: 11/23/2022]
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26
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Abdellatif KR, Abd El Wareth GA, El-Badry OM, Ragab HM, El-Enany MM. Synthesis and antimicrobial evaluation of certain purine, benzothiazole and thiazole systems substituted with dialkylaminoalkyl-o-cresols. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2015. [DOI: 10.1016/j.bjbas.2015.02.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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27
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Gopalaiah K, Chandrudu SN. Iron(ii) bromide-catalyzed oxidative coupling of benzylamines with ortho-substituted anilines: synthesis of 1,3-benzazoles. RSC Adv 2015. [DOI: 10.1039/c4ra12490a] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An iron(ii) bromide-catalyzed oxidative coupling of benzylamines with 2-amino/hydroxy/mercapto-anilines has been developed, allowing the synthesis of a diversity of substituted 1,3-benzazoles in good to excellent yields.
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Chen Z, Zhang S, Shen L, Zhu Z, Zhang J. Fluorescence imaging of a new monofunctional platinum(ii) complex containing a thioflavin-T (ThT)-based fluorophore. NEW J CHEM 2015. [DOI: 10.1039/c5nj00107b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Banerjee S, Payra S, Saha A, Sereda G. ZnO nanoparticles: a green efficient catalyst for the room temperature synthesis of biologically active 2-aryl-1,3-benzothiazole and 1,3-benzoxazole derivatives. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.123] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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30
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Yurttaş L, Tay F, Demirayak Ş. Synthesis and antitumor activity evaluation of new 2-(4-aminophenyl)benzothiazole derivatives bearing different heterocyclic rings. J Enzyme Inhib Med Chem 2014; 30:458-65. [DOI: 10.3109/14756366.2014.945168] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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31
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Naeimi H, Heidarnezhad A. Titanium Tetrabutoxide (TTBO) as Efficient Catalyst for Rapid One Pot Synthesis of 2-Arylbenzothiazoles under Mild Conditions. J CHIN CHEM SOC-TAIP 2014. [DOI: 10.1002/jccs.201400105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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32
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Unsalan O, Sert Y, Ari H, Simão A, Yilmaz A, Boyukata M, Bolukbasi O, Bolelli K, Yalcin I. Micro-Raman, mid-IR, far-IR and DFT studies on 2-[4-(4-fluorobenzamido)phenyl]benzothiazole. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 125:414-421. [PMID: 24568790 DOI: 10.1016/j.saa.2014.01.118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 01/23/2014] [Accepted: 01/27/2014] [Indexed: 06/03/2023]
Abstract
Molecular structure of 2-[4-(4-Fluorobenzamido)phenyl]benzothiazole was determined by quantum chemical calculations. MidIR and FarIR spectra were recorded at room temperature, with 4 cm(-1) resolution in the 4000-400 cm(-1) and 700-30 cm(-1) regions, respectively for the first time. Raman spectrum was recorded in the 4000-100 cm(-1) range. Optimized molecular structure and vibrational wavenumbers of the compound in its ground state have been calculated by using Density Functional Theory using B3LYP functional with 6-311++G(d,p) basis set. Vibrational wavenumbers were seen to be in good agreement with the experimental IR data. Furthermore, assignments of each vibrational mode were interpreted in terms of potential energy distributions in detail.
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Affiliation(s)
- O Unsalan
- University of Istanbul, Faculty of Science, Physics Department, Vezneciler-Fatih, TR-34134 Istanbul, Turkey.
| | - Y Sert
- Bozok University, Faculty of Art & Sciences, Physics Department, TR-66100 Yozgat, Turkey; Sorgun Vocational School, Bozok University, Yozgat 66100, Turkey
| | - H Ari
- Bozok University, Faculty of Art & Sciences, Chemistry Department, TR-66200 Yozgat, Turkey
| | - A Simão
- University of Coimbra, Chemistry Department, P-3004-535 Coimbra, Portugal
| | - A Yilmaz
- University of Istanbul, Faculty of Science, Physics Department, Vezneciler-Fatih, TR-34134 Istanbul, Turkey
| | - M Boyukata
- Bozok University, Faculty of Art & Sciences, Physics Department, TR-66100 Yozgat, Turkey
| | - O Bolukbasi
- University of Istanbul, Faculty of Science, Physics Department, Vezneciler-Fatih, TR-34134 Istanbul, Turkey
| | - K Bolelli
- Ankara University, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tandoğan, TR-06100 Ankara, Turkey
| | - I Yalcin
- Ankara University, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tandoğan, TR-06100 Ankara, Turkey
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33
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Chen GF, Xiao N, Yang JS, Li HY, Chen BH, Han LF. A simple and eco-friendly process catalyzed by montmorillonite K-10, with air as oxidant, for synthesis of 2-substituted benzothiazoles. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1619-4] [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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34
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Mancini DT, Souza EF, Caetano MS, Ramalho TC. 99Tc NMR as a promising technique for structural investigation of biomolecules: theoretical studies on the solvent and thermal effects of phenylbenzothiazole complex. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2014; 52:129-137. [PMID: 24446055 DOI: 10.1002/mrc.4043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2013] [Revised: 12/15/2013] [Accepted: 12/18/2013] [Indexed: 06/03/2023]
Abstract
The phenylbenzothiazole compounds show antitumor properties and are highly selective. In this paper, the (99)Tc chemical shifts based on the ((99m)Tc)(CO)3 (NNO) complex conjugated to the antitumor agent 2-(4'-aminophenyl)benzothiazole are reported. Thermal and solvent effects were studied computationally by quantum-chemical methods, using the density functional theory (DFT) (DFT level BPW91/aug-cc-pVTZ for the Tc and BPW91/IGLO-II for the other atoms) to compute the NMR parameters for the complex. We have calculated the (99)Tc NMR chemical shifts of the complex in gas phase and solution using different solvation models (polarizable continuum model and explicit solvation). To evaluate the thermal effect, molecular dynamics simulations were carried, using the atom-centered density matrix propagation method at the DFT level (BP86/LanL2dz). The results highlight that the (99)Tc NMR spectroscopy can be a promising technique for structural investigation of biomolecules, at the molecular level, in different environments.
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Affiliation(s)
- Daiana T Mancini
- Department of Chemistry, Federal University of Lavras, 37200-000, Lavras, Brazil
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35
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Kamal A, Ashraf M, Khan MNA, Nimbarte VD, Faazil S, Subba Reddy NV, Taj S. Retracted: Synthesis and Cytotoxic Activity of 2-Anilinopyridine-3-Acrylamides as Tubulin Polymerization Inhibitors. ChemMedChem 2014; 9:1615. [DOI: 10.1002/cmdc.201400036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Indexed: 11/11/2022]
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36
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Kamal A, Ashraf M, Vishnu Vardhan MVPS, Faazil S, Nayak VL. Synthesis and anticancer potential of benzothiazole linked phenylpyridopyrimidinones and their diones as mitochondrial apoptotic inducers. Bioorg Med Chem Lett 2013; 24:147-51. [PMID: 24332497 DOI: 10.1016/j.bmcl.2013.11.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 11/06/2013] [Accepted: 11/22/2013] [Indexed: 11/18/2022]
Abstract
A series of benzothiazole linked phenylpyridopyrimidinones (8a-g) and their diones (9a-g) have been designed, synthesized and evaluated for their anticancer activity. Among the series one of the conjugate 8b showed significant cytotoxicity against human cervical cancer cell line ME-180 with IC50 value of 4.01μM. This compound was tested on the cell cycle perturbations and DNA damage. Flow cytometry analysis revealed that the compound 8b showed drastic cell cycle perturbations due to concentration dependent increase in the sub-G0 phase in ME-180 cell line. DNA fragmentation and Hoechst staining reveals that this compound induced cell death by apoptosis. Further caspase-3 and loss of mitochondrial membrane potential suggested that the compound induces cell death by apoptosis.
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Affiliation(s)
- Ahmed Kamal
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India.
| | - Md Ashraf
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
| | - M V P S Vishnu Vardhan
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
| | - Shaikh Faazil
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
| | - V Lakshma Nayak
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
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37
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Synthesis and antioxidant activity of amido-linked benzoxazolyl/benzothiazolyl/benzimidazolyl-pyrroles and pyrazoles. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0884-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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Sebastian S, Sylvestre S, Oudayakumar K, Jayavarthanan T, Karthikeyan B, Sundaraganesan N. Molecular structure, vibrational spectra and first-order hyperpolarisability analysis of 2-amino-6-nitrobenzothiazole by DFT method. MOLECULAR SIMULATION 2013. [DOI: 10.1080/08927022.2013.794271] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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39
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Kamel EM, Ahmad RA, Moustafa OS. A Convenient and Efficient Conversion of 4-Aminobenzophenone into Some New 1,2,3-Triazole and Benzothiazole Derivatives. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200500023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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Synthesis and antimosquito properties of 2,6-substituted benzo[d]thiazole and 2,4-substituted benzo[d]thiazole analogues against Anopheles arabiensis. Eur J Med Chem 2013; 65:295-303. [DOI: 10.1016/j.ejmech.2013.04.061] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 04/09/2013] [Accepted: 04/28/2013] [Indexed: 11/22/2022]
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41
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Abdelgawad MA, Belal A, Omar HA, Hegazy L, Rateb ME. Synthesis, anti-breast cancer activity, and molecular modeling of some benzothiazole and benzoxazole derivatives. Arch Pharm (Weinheim) 2013; 346:534-41. [PMID: 23740859 DOI: 10.1002/ardp.201300044] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 03/30/2013] [Accepted: 04/12/2013] [Indexed: 11/10/2022]
Abstract
A new series of benzothiazoles and benzoxazoles was synthesized using 4-benzothiazol-2-yl-phenylamine and 4-benzoxazol-2-yl-phenylamine as starting materials. All the prepared compounds were evaluated for their antitumor activities against human breast cancer cell lines, MCF-7 and MDA-231, using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cell viability analysis. Almost all the tested compounds revealed potent antitumor activity, especially the N-methyl piperazinyl substituted derivatives 6f and 6c, which displayed the most potent inhibitory activity with IC50 values ranging from 8 to 17 nM. Docking the synthesized compounds into the epidermal growth factor receptor (EGFR), which is highly expressed in breast cancer, was employed to explore the possible interactions of these compounds with the EGFR. The activity of the reported compounds supports its clinical promise as a component of therapeutic strategies for cancer, for which high concentrations of chemotherapeutic agents are always a major limitation.
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Affiliation(s)
- Mohamed A Abdelgawad
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
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42
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Zuo Y, Yang SG, Luo YP, Tan Y, Hao GF, Wu QY, Xi Z, Yang GF. Design and synthesis of 1-(benzothiazol-5-yl)-1H-1,2,4-triazol-5-ones as protoporphyrinogen oxidase inhibitors. Bioorg Med Chem 2013; 21:3245-55. [PMID: 23623257 DOI: 10.1016/j.bmc.2013.03.056] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 03/07/2013] [Accepted: 03/09/2013] [Indexed: 11/17/2022]
Abstract
Protoporphyrinogen oxidase (PPO, E.C. 1.3.3.4) is the action target for several structurally diverse herbicides. A series of novel 4-(difluoromethyl)-1-(6-halo-2-substituted-benzothiazol-5-yl)-3-methyl-1H-1,2,4-triazol-5(4H)-ones 2a-z were designed and synthesized via the ring-closure of two ortho-substituents. The in vitro bioassay results indicated that the 26 newly synthesized compounds exhibited good PPO inhibition effects with K(i) values ranging from 0.06 to 17.79 μM. Compound 2e, ethyl 2-{[5-(4-(difluoromethyl)-3-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)-6-fluorobenzo-thiazol-2-yl]thio}acetate, was the most potent inhibitor with K(i) value of 0.06 μM against mtPPO, comparable to (K(i)=0.03 μM) sulfentrazone. Further green house assays showed that compound 2f (K(i)=0.24 μM, mtPPO), ethyl 2-{[5-(4-(difluoromethyl)-3-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)-6-fluorobenzothiazol-2-yl]thio}propanoate, showed the most promising post-emergence herbicidal activity with broad spectrum even at concentrations as low as 37.5 gai/ha. Soybean exhibited tolerance to compound 2f at the dosages of 150 gai/ha, whereas they are susceptible to sulfentrazone even at 75 gai/ha. Thus, compound 2f might be a potential candidate as a new herbicide for soybean fields.
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Affiliation(s)
- Yang Zuo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China
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43
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Synthesis of pyrazolo[1,5-a]pyrimidine linked aminobenzothiazole conjugates as potential anticancer agents. Bioorg Med Chem Lett 2013; 23:3208-15. [PMID: 23623491 DOI: 10.1016/j.bmcl.2013.03.129] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 03/14/2013] [Accepted: 03/30/2013] [Indexed: 12/29/2022]
Abstract
A series of pyrazolo[1,5-a]pyrimidine linked 2-aminobenzothizole conjugates (6a-t) were synthesized and evaluated for their anticancer activity against five human cancer cell lines. Among them two compounds 6p and 6m showed significant anticancer activity with IC50 values ranging from 2.01 to 7.07 and 1.94-3.46 μM, respectively. Moreover, cell cycle arrest in G2/M and reduction in Cdk1 expression level were observed upon treatment of these compounds and they also induced caspase-3 dependent apoptosis. This was further confirmed by staining as well as DNA fragmentation analysis.
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45
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Different synthetic routes to 4-(1H-benzo[d]imidazol-2-yl)aniline. RESEARCH ON CHEMICAL INTERMEDIATES 2012. [DOI: 10.1007/s11164-012-0843-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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46
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Yousuf S, Shah S, Ambreen N, Khan KM, Ahmad S. 5-Chloro-2-(3,4,5-trimethoxyphenyl)-1,3-benzothiazole. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o3057. [PMID: 23125817 PMCID: PMC3470404 DOI: 10.1107/s1600536812039372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 09/15/2012] [Indexed: 11/30/2022]
Abstract
In the title compound, C16H14ClNO3S, the dihedral angle between the almost-planar benzothiazole ring system [maximum deviation = 0.012 (3) Å] and the aromatic ring of the trimethoxyphenyl group is 15.56 (6)°. In the crystal, the molecules are arranged into layers parallel to the bc plane, held together only by weak van der Waals forces.
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47
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Endo Y, Bäckvall JE. Biomimetic Oxidative Coupling of Benzylamines and 2-Aminophenols: Synthesis of Benzoxazoles. Chemistry 2012; 18:13609-13. [DOI: 10.1002/chem.201202187] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Indexed: 11/06/2022]
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48
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Ahmed K, Yellamelli Valli Venkata S, Mohammed NAK, Sultana F, Methuku KR. Recent advances on structural modifications of benzothiazoles and their conjugate systems as potential chemotherapeutics. Expert Opin Investig Drugs 2012; 21:619-35. [PMID: 22493977 DOI: 10.1517/13543784.2012.676043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Benzothiazole scaffold comprises a bicyclic ring system and is known to exhibit a wide range of biological properties including antimicrobial and anticancer activities. Benzothiazole derivatives have long been therapeutically used for the treatment of various diseases. However, in recent years, 2-arylbenzothiazoles have emerged as an important pharmacophore in the development of antitumor agents. The promising biological profile and synthetic accessibility have been attractive in the design and development of new benzothiazoles and their conjugate systems as potential chemotherapeutics. AREAS COVERED This review mainly focuses on the structural modifications of benzothiazole scaffold, development of various series of benzothiazoles and their conjugates as new antitumor agents. Furthermore, heterocyclic derivatives bearing benzothiazole moiety and their in vitro as well as in vivo screening, structure-activity relationships (SAR), mechanism, pharmacokinetics, clinical use and their future therapeutic applications are discussed here. EXPERT OPINION A large number of benzothiazole derivatives discussed here possess potent anticancer activity and can be further developed as drug candidates. Benzothiazole conjugates could also display synergistic effect and still there is a need to use the drug combinations permitting lower dose and development of new generation of drugs. Despite encouraging results that have been observed for their response to tumor in clinical studies, full characterization of their toxicity is further required for their clinical usage as safe drugs for the treatment of cancer. We believe that this review gives a better understanding and scope for future drug design and development of benzothiazole-based compounds to implicate their use in cancer chemotherapy.
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Affiliation(s)
- Kamal Ahmed
- Indian Institute of Chemical Technology, Division of Organic Chemistry, Tarnaka, Hyderabad, India.
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Nandekar PP, Sangamwar AT. Cytochrome P450 1A1-mediated anticancer drug discovery: in silico findings. Expert Opin Drug Discov 2012; 7:771-89. [PMID: 22716293 DOI: 10.1517/17460441.2012.698260] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Target-specific drugs may offer fewer side/adverse effects in comparison with other anticancer agents and thus save normal healthy cells to a greater extent. The selective overexpression of cytochrome P450 1A1 (CYP1A1) in tumor cells induces the metabolism of benzothiazole and aminoflavone compounds to their reactive species, which are responsible for DNA adduct formation and cell death. This review encompasses the novelty of CYP1A1 as an anticancer drug target and explores the possible in silico strategies that would be applicable in the discovery and development of future antitumor compounds. AREAS COVERED This review highlights the various ligand-based and target-based in silico methodologies that were efficiently used in exploration of CYP1A1 as a novel antitumor target. These methodologies include electronic structure analysis, CoMFA studies, homology modeling, molecular docking, molecular dynamics analysis, pharmacophore mapping and quantitative structure activity relationship (QSAR) studies. It also focuses on the various approaches used in the development of the lysyl amide prodrug of 5F-203 (NSC710305) and dimethanesulfonate salt of 5-aminoflavone (NSC710464) as clinical candidates from their less potent analogues. EXPERT OPINION Selective overexpression of CYP1A1 in cancer cells offers tumor-specific drug design to ameliorate the current adverse effects associated with existing antitumor agents. Medicinal chemistry and in vitro driven approaches, in combination with knowledge-based drug design and by using the currently available tools of in silico methodologies, would certainly make it possible to design and develop novel anticancer compounds targeting CYP1A1.
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Affiliation(s)
- Prajwal P Nandekar
- National Institute of Pharmaceutical Education and Research (NIPER), Department of Pharmacoinformatics, S.A.S. Nagar (Mohali), Punjab-160062, India
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Microwave-assisted one-pot synthesis of benzothiazole and benzoxazole libraries as analgesic agents. J CHEM SCI 2012. [DOI: 10.1007/s12039-012-0251-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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