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Zahra FT, Saeed A, Ahmed A, Ismail H, Ijaz MU, Albericio F. Synthesis of amantadine clubbed N-aryl amino thiazoles as potent urease, α-amylase & α-glucosidase inhibitors, kinetic and molecular docking studies. RSC Adv 2023; 13:24988-25001. [PMID: 37614781 PMCID: PMC10442672 DOI: 10.1039/d3ra05330j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 08/15/2023] [Indexed: 08/25/2023] Open
Abstract
A series of ten novel compounds were synthesized by incorporating a 1,3 thiazole core into amantadine and their structures were validated using different analytical and spectral methods such as FTIR, EI-MS, 1H NMR, and 13C NMR. The antibacterial and enzyme inhibitory properties of these newly synthesized compounds were evaluated. Remarkably, the compounds exhibited significant antibacterial activity against Escherichia coli and Bacillus subtilis. Additionally, the in vitro inhibitory activities of the synthesized compounds, against α-amylase, α-glucosidase, and urease were investigated. Among the tested compounds, compound 6d demonstrated potent and selective inhibition of α-amylase IC50 = 97.37 ± 1.52 μM, while acarbose was used as positive control and exhibited IC50 = 5.17 ± 0.25 μM. Compound 6d and 6e exhibited prominent inhibition against α-glucosidase IC50 = 38.73 ± 0.80 μM and 41.63 ± 0.26 μM respectively. Furthermore, compound 6d inhibited urease with exceptional efficacy IC50 = 32.76 μM, while positive control thiourea showed more prominent activity having IC50 = 1.334 μM. Molecular docking studies disclosed the binding mechanism and affinity of these new inhibitors within the binding sites of various amino acids. To investigate the association between molecular structural characteristics and inhibitory actions of synthesized derivatives, preliminary structure-activity relationship (SAR) studies were performed. These findings indicated that compounds 6a, 6c, 6d and 6e are potential candidates for hit-to-lead follow-up in the drug-discovery process for treating diabetes and hyperglycemia.
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Affiliation(s)
- Fatima Tuz Zahra
- Department of Chemistry, Quaid-i-Azam University 45320 Islamabad Pakistan +92-51-9064-2241 +92-51-9064-2128
| | - Aamer Saeed
- Department of Chemistry, Quaid-i-Azam University 45320 Islamabad Pakistan +92-51-9064-2241 +92-51-9064-2128
| | - Atteeque Ahmed
- Department of Chemistry, Quaid-i-Azam University 45320 Islamabad Pakistan +92-51-9064-2241 +92-51-9064-2128
| | - Hammad Ismail
- Department of Biochemistry and Biotechnology, University of Gujrat Gujrat 50700 Pakistan
| | - Muhammad Umar Ijaz
- Department of Zoology, Wildlife and Fisheries, University of Agriculture Faisalabad 38040 Pakistan
| | - Fernando Albericio
- Peptides Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal Westville Durban 4000 South Africa
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Department of Organic Chemistry, University of Barcelona 08028 Barcelona Spain
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Mishra AK, Singh V, Kumar A, Singh H. Synthesis, Computational Study, and Anticonvulsant Activity of Newly
Synthesized 2-aminobenzothiazole Derivatives. LETT DRUG DES DISCOV 2022. [DOI: 10.2174/1570180819666220405081808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Despite the fact that anticonvulsant drugs targeting multiple targets have been
used in the health center, their effectiveness and tolerability in the treatment of seizures have not improved
much. As a result, innovative anticonvulsant medicines are still needed urgently to overcome the
significant toxicity of currently existing medications.
Objective:
This study aimed to synthesize 2-aminobenzothiazole derivatives as anticonvulsant agents,
compute physicochemical parameters, and conduct a docking investigation.
Methods:
Condensing 4-(2-(benzo[d]thiazole-2-ylamino) acetamido) benzoyl chloride with substituted
phenols in acetone in anhydrous potassium carbonate in the presence of potassium iodide in dry acetone
yielded benzothiazole derivatives. IR and NMR spectroscopy were used to characterize the structures of
freshly synthesized substances. To estimate their drug-like candidates, a number of molecular attributes of
these derivatives were computed. The carbonic anhydrase enzyme was used to perform molecular docking
on these synthesized compounds. The synthetic compounds were tested for biological activity, such as
anticonvulsant activity and enzyme inhibitor activity for carbonic anhydrase.
Results:
The findings showed that V-5 (4-chlorophenyl 4-(2-(benzo[d]thiazol-2-ylamino)acetamido)benzoate)
had the strongest anticonvulsant effect out of all the eight target compounds.
Conclusion:
The outcome of this research was that V-5 could be a promising new lead molecule for the
development of anticonvulsant drugs.
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Affiliation(s)
- Arun Kumar Mishra
- Central Facility of Instrumentation, Pharmacy Academy, IFTM University, Moradabad 244001, India
| | - Vachan Singh
- Drug Design Laboratory, School of Pharmaceutical Sciences, IFTM University, Moradabad 244001, India
| | - Arvind Kumar
- Drug Design Laboratory, School of Pharmaceutical Sciences, IFTM University, Moradabad 244001, India
| | - Harpreet Singh
- Drug Design Laboratory, School of Pharmaceutical Sciences, IFTM University, Moradabad 244001, India
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Haider K, Shrivastava N, Pathak A, Prasad Dewangan R, Yahya S, Shahar Yar M. Recent advances and SAR study of 2-substituted benzothiazole scaffold based potent chemotherapeutic agents. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2021.100258] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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4
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Akhter S, Rehman A, Abidi SMA, Arjmand F, Tabassum S. Synthesis, structural insights, and biological screening of DNA targeted Ru( ii)(η 6- p-cymene) complexes containing bioactive amino-benzothiazole ligand scaffolds. NEW J CHEM 2022; 46:11462-11473. [DOI: 10.1039/d2nj00883a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Two new drug candidates [Ru(p-cymene)(C7H4ClN2S)Cl2] and [Ru(p-cymene)(C7H5FN2S)Cl2] were synthesized and characterised. The in vitro cytotoxic activity of the complexes was assessed against five human cancer cell lines and anthelmintic activity was also investigated.
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Affiliation(s)
- Suffora Akhter
- Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, India
| | - Abdur Rehman
- Section of Parasitology, Department of Zoology, Aligarh Muslim University, Aligarh, India
| | - S. M. A. Abidi
- Section of Parasitology, Department of Zoology, Aligarh Muslim University, Aligarh, India
| | - Farukh Arjmand
- Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, India
| | - Sartaj Tabassum
- Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, India
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5
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Gurram SR, Azam MA. Design, synthesis and biological evaluation of some novel N'-(1,3-benzothiazol-2-yl)-arylamide derivatives as antibacterial agents. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01730-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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Sekgota KC, Isaacs M, Hoppe HC, Seldon R, Warner DF, Khanye SD, Kaye PT. Propylphosphonic acid anhydride–mediated amidation of Morita–Baylis–Hillman–derived indolizine-2-carboxylic acids. JOURNAL OF CHEMICAL RESEARCH 2021. [DOI: 10.1177/1747519820987156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Propylphosphonic acid anhydride has been successfully used as a coupling agent in the synthesis of a series of indolizine-2-carboxamido derivatives from indolizine-2-carboxylic acid and its 3-acetylated analogue. The acid substrates were obtained by saponification of the corresponding methyl esters produced, in turn, selectively and efficiently, by time-controlled cyclisation of a single Morita–Baylis–Hillman adduct. Various amino and hydrazino compounds with medicinal potential have been used to prepare indolizine-2-carboxamido and hydrazido derivatives.
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Affiliation(s)
| | - Michelle Isaacs
- Centre for Chemico- and Biomedicinal Research, Rhodes University, Makhanda/Grahamstown, South Africa
| | - Heinrich C Hoppe
- Centre for Chemico- and Biomedicinal Research, Rhodes University, Makhanda/Grahamstown, South Africa
- Department of Biochemistry and Microbiology, Rhodes University, Makhanda/Grahamstown, South Africa
| | - Ronnett Seldon
- Drug Discovery and Development Centre (H3-D), Department of Chemistry, University of Cape Town, Cape Town, South Africa
| | - Digby F Warner
- SAMRC/NHLS/UCT Molecular Mycobacteriology Research Unit, Department of Pathology and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Setshaba D Khanye
- Centre for Chemico- and Biomedicinal Research, Rhodes University, Makhanda/Grahamstown, South Africa
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Rhodes University, Makhanda/Grahamstown, South Africa
| | - Perry T Kaye
- Department of Chemistry, Rhodes University, Makhanda/Grahamstown, South Africa
- Centre for Chemico- and Biomedicinal Research, Rhodes University, Makhanda/Grahamstown, South Africa
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Alves JEF, de Oliveira JF, de Lima Souza TRC, de Moura RO, de Carvalho Júnior LB, Alves de Lima MDC, de Almeida SMV. Novel indole-thiazole and indole-thiazolidinone derivatives as DNA groove binders. Int J Biol Macromol 2021; 170:622-635. [PMID: 33359805 DOI: 10.1016/j.ijbiomac.2020.12.153] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 10/22/2022]
Abstract
In this study, we report the synthesis of eight novel indole-thiazole and indole-thiazolidinone derivatives, as well as their ability to interact with DNA, analysed through the UV-vis absorption, fluorescence, circular dichroism (CD), viscosity techniques and molecular docking. The ctDNA interaction analysis demonstrated different spectroscopic effects and the affinity constants (Kb) calculated by the UV-vis absorption method were between 2.08 × 105 and 6.99 × 106 M-1, whereas in the fluorescence suppression constants (Ksv) ranged between 0.38 and 0.77 × 104 M-1 and 0.60-7.59 × 104 M-1 using Ethidium Bromide (EB) and 4',6-Diamidino-2-phenylindole (DAPI) as fluorescent probes, respectively. Most derivatives did not alter significantly the secondary structure of the ctDNA according to the CD results. None of the compounds was able to change the relative viscosity of the ctDNA. These results prove that compounds interact with ctDNA via groove binding, which was confirmed by A-T rich oligonucleotide sequence assay with compound JF-252, suggesting the importance of both the phenyl ring coupled to C-4 thiazole ring and the bromo-unsubstituted indole nucleus.
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Affiliation(s)
| | | | | | - Ricardo Olímpio de Moura
- Departamento de Ciências Farmacêuticas, Centro de Ciências Biológicas e da Saúde, Universidade Estadual da Paraíba e Bodocongo, Campina Grande, PB 58429-500, Brazil
| | | | - Maria do Carmo Alves de Lima
- Laboratório de Química e Inovação Terapêutica (LQIT) - Departamento de Antibióticos, Universidade Federal de Pernambuco, 50670-901, Brazil
| | - Sinara Mônica Vitalino de Almeida
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, 50670-901, Brazil; Laboratório de Biologia Molecular, Universidade de Pernambuco (UPE), Multicampi Garanhuns, Garanhuns, PE 55290-000, Brazil.
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8
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Alqahtani AM, Bayazeed AA. Synthesis and antiproliferative activity studies of new functionalized pyridine linked thiazole derivatives. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2020.11.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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9
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Bhavsar ZA, Acharya PT, Jethava DJ, Patel HD. Recent advances in development of anthelmintic agents: Synthesis and biological screening. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2019.1695276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zeel A. Bhavsar
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Prachi T. Acharya
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Divya J. Jethava
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Hitesh D. Patel
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
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10
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Rodrigues CA, Dos Santos PF, da Costa MOL, Pavani TFA, Xander P, Geraldo MM, Mengarda A, de Moraes J, Rando DGG. 4-Phenyl-1,3-thiazole-2-amines as scaffolds for new antileishmanial agents. J Venom Anim Toxins Incl Trop Dis 2018; 24:26. [PMID: 30214457 PMCID: PMC6131760 DOI: 10.1186/s40409-018-0163-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/28/2018] [Indexed: 12/13/2022] Open
Abstract
Background There is still a need for new alternatives in pharmacological therapy for neglected diseases, as the drugs available show high toxicity and parenteral administration. That is the case for the treatment of leishmaniasis, particularly to the cutaneous clinical form of the disease. In this study, we present the synthesis and biological screening of eight 4-phenyl-1,3-thiazol-2-amines assayed against Leishmania amazonensis. Herein we propose that these compounds are good starting points for the search of new antileishmanial drugs by demonstrating some of the structural aspects which could interfere with the observed activity, as well as suggesting potential macromolecular targets. Methods The compounds were easily synthesized by the methodology of Hantzsch and Weber, had their purities determined by Gas Chromatography-Mass spectrometry and assayed against the promastigote forms of Leishmania amazonensis as well as against two white cell lines (L929 and THP-1) and the monkey’s kidney Vero cells. PrestoBlue® and MTT viability assays were the methodologies applied to measure the antileishmanial and cytotoxic activities, respectively. A molecular modeling target fishing study was performed aiming to propose potential macromolecular targets which could explain the observed biological behavior. Results Four out of the eight compounds tested exhibited important anti-promastigote activity associated with good selectivity indexes when considering Vero cells. For the most promising compound, compound 6, IC50 against promastigotes was 20.78 while SI was 5.69. Compounds 3 (IC50: 46.63 μM; SI: 26.11) and 4 (IC50: 53.12 μM; SI: 4.80) also presented important biological behavior. A target fishing study suggested that S-methyl-5-thioadenosine phosphorylase is a potential target to these compounds, which could be explored to enhance activity and decrease the potential toxic side effects. Conclusions This study shows that 4-phenyl-1,3-thiazol-2-amines could be good scaffolds to the development of new antileishmanial agents. The S-methyl-5-thioadenosine phosphorylase could be one of the macromolecular targets involved in the action. Electronic supplementary material The online version of this article (10.1186/s40409-018-0163-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Carina Agostinho Rodrigues
- 1Chemical and Pharmaceutical Research Group, Department of Pharmaceutical Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP), Rua São Nicolau, 210, 2o andar, Diadema, SP 09913-030 Brazil
| | - Paloma Freire Dos Santos
- 1Chemical and Pharmaceutical Research Group, Department of Pharmaceutical Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP), Rua São Nicolau, 210, 2o andar, Diadema, SP 09913-030 Brazil
| | - Marcela Oliveira Legramanti da Costa
- 1Chemical and Pharmaceutical Research Group, Department of Pharmaceutical Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP), Rua São Nicolau, 210, 2o andar, Diadema, SP 09913-030 Brazil
| | - Thais Fernanda Amorim Pavani
- 1Chemical and Pharmaceutical Research Group, Department of Pharmaceutical Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP), Rua São Nicolau, 210, 2o andar, Diadema, SP 09913-030 Brazil
| | - Patrícia Xander
- 2Laboratory of Cellular Immunology and Biochemistry of Fungi, Department of Pharmaceutical Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP), Rua São Nicolau, 210, 2o andar, Diadema, SP 09913-030 Brazil
| | - Mariana Marques Geraldo
- 2Laboratory of Cellular Immunology and Biochemistry of Fungi, Department of Pharmaceutical Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP), Rua São Nicolau, 210, 2o andar, Diadema, SP 09913-030 Brazil
| | - Ana Mengarda
- 3Research Group of Neglected Diseases, University of Guarulhos, Praça Tereza Cristina, 88, Guarulhos, SP 07020-071 Brazil
| | - Josué de Moraes
- 3Research Group of Neglected Diseases, University of Guarulhos, Praça Tereza Cristina, 88, Guarulhos, SP 07020-071 Brazil
| | - Daniela Gonçales Galasse Rando
- 1Chemical and Pharmaceutical Research Group, Department of Pharmaceutical Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP), Rua São Nicolau, 210, 2o andar, Diadema, SP 09913-030 Brazil
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11
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Tratrat C, Haroun M, Paparisva A, Geronikaki A, Kamoutsis C, Ćirić A, Glamočlija J, Soković M, Fotakis C, Zoumpoulakis P, Bhunia SS, Saxena AK. Design, synthesis and biological evaluation of new substituted 5-benzylideno-2-adamantylthiazol[3,2-b][1,2,4]triazol-6(5 H )ones. Pharmacophore models for antifungal activity. ARAB J CHEM 2018. [DOI: 10.1016/j.arabjc.2016.06.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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12
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Nural Y, Gemili M, Ulger M, Sari H, De Coen LM, Sahin E. Synthesis, antimicrobial activity and acid dissociation constants of methyl 5,5-diphenyl-1-(thiazol-2-yl)pyrrolidine-2-carboxylate derivatives. Bioorg Med Chem Lett 2018; 28:942-946. [DOI: 10.1016/j.bmcl.2018.01.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/18/2018] [Accepted: 01/23/2018] [Indexed: 12/19/2022]
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Incerti M, Vicini P, Geronikaki A, Eleftheriou P, Tsagkadouras A, Zoumpoulakis P, Fotakis C, Ćirić A, Glamočlija J, Soković M. New N-(2-phenyl-4-oxo-1,3-thiazolidin-3-yl)-1,2-benzothiazole-3-carboxamides and acetamides as antimicrobial agents. MEDCHEMCOMM 2017; 8:2142-2154. [PMID: 30108732 DOI: 10.1039/c7md00334j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 10/09/2017] [Indexed: 11/21/2022]
Abstract
A series of 21 novel N-[2-phenyl-4-oxo-1,3-thiazolidin-3-yl]-1,2-benzothiazole-3-carboxamides/acetamides (4a-4p) as well as a series of N'-(halophenylmethylidene)-1,2-benzothiazole-3-acetohydrazides (3h-3p) have been synthesized and evaluated for their antimicrobial activity against eight bacterial and eight fungal species, among them plant, animal and human pathogens and food contaminating species. All compounds appeared to be potent and the best activity was exhibited by compound 4d with MIC in the range of 10.7-21.4 μmol mL-1 × 10-2 and MBC of 21.4-40.2 μmol mL-1 × 10-2. The best antifungal activity was observed for compounds 4p and 3h. Elucidation of the relationship between the antimicrobial activity and molecular properties of the synthesized compounds was also performed. Synthetic intermediates were also tested with several exhibiting good antimicrobial activities. Docking studies for some compounds were performed.
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Affiliation(s)
- Matteo Incerti
- Dipartimento di Scienze degli Alimenti e del Farmaco , Universita' degli Studi di Parma , Italy
| | - Paola Vicini
- Dipartimento di Scienze degli Alimenti e del Farmaco , Universita' degli Studi di Parma , Italy
| | - Athina Geronikaki
- Aristotle University , School of Pharmacy , Thessaloniki , 54124 , Greece . ; ; Tel: +30 2310 997616
| | - Phaedra Eleftheriou
- Department of Medical Laboratory Studies , School of Health and Medical Care , Alexander Technological Educational Institute of Thessaloniki , Greece
| | - Athanasios Tsagkadouras
- Department of Medical Laboratory Studies , School of Health and Medical Care , Alexander Technological Educational Institute of Thessaloniki , Greece
| | - Panagiotis Zoumpoulakis
- Institute of Biology , Medicinal Chemistry and Biotechnology , National Hellenic Research Foundation , 48 Vas. Constantinou Ave. , 11635 , Athens , Greece
| | - Charalmpos Fotakis
- Institute of Biology , Medicinal Chemistry and Biotechnology , National Hellenic Research Foundation , 48 Vas. Constantinou Ave. , 11635 , Athens , Greece
| | - Ana Ćirić
- Mycological Laboratory , Department of Plant Physiology , Institute for Biological Research , Siniša Stanković , University of Belgrade , Bulevar , Serbia
| | - Jasmina Glamočlija
- Mycological Laboratory , Department of Plant Physiology , Institute for Biological Research , Siniša Stanković , University of Belgrade , Bulevar , Serbia
| | - Marina Soković
- Mycological Laboratory , Department of Plant Physiology , Institute for Biological Research , Siniša Stanković , University of Belgrade , Bulevar , Serbia
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Zhang C, Xu J, Zhao X, Kang C. Synthesis of Novel 3-(Benzothiazol-2-Ylmethylene)Indolin-2-Ones. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15040891974776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A mild method for the synthesis of 3-(benzothiazol-2-ylmethylene)indolin-2-ones via the aldol condensation of substituted indolin-2-ones and benzothiazole-2-carbaldehyde is described. This new procedure has significant advantages, such as mild conditions, high yields and simple work-up.
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Affiliation(s)
- Chao Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Juan Xu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Xinyu Zhao
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Congmin Kang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
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Design and synthesis of 2,6-di(substituted phenyl)thiazolo[3,2-b]-1,2,4-triazoles as α-glucosidase and α-amylase inhibitors, co-relative Pharmacokinetics and 3D QSAR and risk analysis. Biomed Pharmacother 2017; 94:499-513. [PMID: 28780468 DOI: 10.1016/j.biopha.2017.07.139] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Revised: 07/19/2017] [Accepted: 07/27/2017] [Indexed: 02/01/2023] Open
Abstract
Ten fused heterocyclic derivatives bearing the 2,6-di(subsituted phenyl)thiazolo[3,2-b]-1,2,4-triazoles as central rings were synthesized and structures of the compounds were established by analytical and spectral data using FTIR, EI-MS, 1H NMR and 13C NMR techniques. In vitro inhibitory activities of synthesized compounds on α-amylase, α-glucosidase and α-burylcholinesterase (α-BuChE) were evaluated using a purified enzyme assays. Compound 5c demonstrated strong and selective α-amylase inhibitory activity (IC50=1.1μmol/g). 5g exhibited excellent inhibition against α-glucosidase (IC50=1.2μmol/g) when compared with acarbose (IC50=4.7μmol/g) as a positive reference. Compound 5i was found to be most potent derivative against α-BuChE with the IC50 of 1.5μmol/g which was comparable to the value obtained for (4.7μmol/g) positive control (i.e. galantamine hydrobromide). Molecular dockings of synthesized compounds into the binding sites of human pancreatic α-amylase, intestinal maltase-glucoamylase and neuronal α-butrylcholinesterase allowed to shed light on the affinity and binding mode of these novel inhibitors. Preliminary structure-activity relationship (SAR) studies were carried out to understand the relationship between molecular structural features and inhibition activities of synthesized derivatives. These data suggested that compounds 5c, 5g and 5i are promising candidates for hitto- lead follow-up in the drug-discovery process for the treatment of Alzheimer's disease and hyperinsulinamia.
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Pejchalová M, Havelek R, Královec K, Růžičková Z, Pejchal V. Novel derivatives of substituted 6-fluorobenzothiazole diamides: synthesis, antifungal activity and cytotoxicity. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1894-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Synthesis and biological evaluation of some 4-(6-substituted-1,3-benzothiazol-2-yl)amino-1,3-thiazole-2-amines and their Schiff bases. ARAB J CHEM 2015. [DOI: 10.1016/j.arabjc.2014.11.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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18
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Netalkar PP, Netalkar SP, Budagumpi S, Revankar VK. Synthesis, crystal structures and characterization of late first row transition metal complexes derived from benzothiazole core: Anti-tuberculosis activity and special emphasis on DNA binding and cleavage property. Eur J Med Chem 2014; 79:47-56. [DOI: 10.1016/j.ejmech.2014.03.083] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 03/22/2014] [Accepted: 03/29/2014] [Indexed: 01/10/2023]
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