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Sanjurani T, Paul S, Barman P. Indole-based NNN donor Schiff base ligand and its complexes: Sonication-assisted synthesis, characterization, DNA binding, anti-cancer evaluation and in-vitro biological assay. Bioorg Chem 2024; 146:107281. [PMID: 38484588 DOI: 10.1016/j.bioorg.2024.107281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/16/2024] [Accepted: 03/09/2024] [Indexed: 04/13/2024]
Abstract
A novel indole based NNN donor Schiff base ligand and its Ni(II), Zn(II) and Cd(II) complexes have been synthesized using sonication-assisted method which is a highly efficient eco-friendly mechanism. The synthesized complexes have been characterized using elemental analysis, UV-Vis spectroscopy, mass spectrometry, FT-IR, and NMR and are optimized using DFT approach, which provided their theoretical framework. The stoichiometry between the ligand and the metal ions was also determined using Job's method. The thermogravimetric (TGA/DSC) analyses confirm the stability for all complexes at room temperature followed by thermal decomposition in different steps. DNA binding activities have been assessed by employing UV-visible and fluorescence spectra using the CT-DNA. The estimated intrinsic binding constant (Kb) for NiL, ZnL, and CdL complexes was 6.00 × 105, 5.58 × 105, and 4.7 × 105, respectively. In accordance with the Kb value, the quenching constant (Ksv) values of NiL, ZnL, and CdL are 5.59 × 105 M-1, 4.3 × 105 M-1, and 4.08 × 105 M-1 respectively. The anticancer properties have been assessed using MTT Assay. It has been found that the Ni(II) complex (NiL) is the most potent among the series with IC50 of 169 µg/mL. An in-vitro antioxidant experiment using DPPH was used to evaluate the synthesizedcomplexes' ability to scavenge free radicals. The findings indicated that the complexes exhibited notable antioxidant properties. The antioxidant property ZnL has been found to be the highest with an IC50 of 2.91 µg/mL and it follows the order is ZnL > NiL > CdL > L. Using the egg albumin denaturation technique, the anti-inflammatory property have been assessed, and the amount of protein denaturation inhibition has been computed. NiL has the highest % inhibition among the series studied. Comparatively, the metal complexes have been reported to exhibit higher biological activities than the prepared Schiff base ligand. The reason for the excellent biological properties observed in the metal complexes could be attributed to the incorporation of the electron-withdrawing CH3COO- during complexation. Molecular docking studies have been performed on the 2GYT protein and it has been found that the complexes have excellent binding affinity, with NiL having the lowest binding energy of -6.93 Kcal mol-1. The values suggested that NiL is more effective against HePG2 cancer cells, which is also in accordance with the MTT Assay results.
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Affiliation(s)
- Thangjam Sanjurani
- Department of Chemistry, National Institute of Technology Silchar, Assam 788010, India
| | - Sneha Paul
- Department of Chemistry, National Institute of Technology Silchar, Assam 788010, India
| | - Pranjit Barman
- Department of Chemistry, National Institute of Technology Silchar, Assam 788010, India.
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2
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Alshamrani M. Medicinal importance and chemosensing applications of Schiff base derivatives for the detection of metal ions: A review. MAIN GROUP CHEMISTRY 2022. [DOI: 10.3233/mgc-220091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Schiff bases, named after Hugo Schiff, are formed when primary amine reacts with carbonyl compounds (aldehyde or ketone) under specific conditions. Schiff bases are economical, simple synthetic routes, and easily accessible in laboratories. They have medicinal and biological applications such as antiviral, antioxidant, antifungal, anticancer, anthelmintic, antibacterial, antimalarial, anti-inflammatory, antiglycation, anti-ulcerogenic, and analgesic potentials. A number of Schiff bases are reported for the detection of various metal ions. They are also used as catalysts, polymer stabilizers, intermediates in organic synthesis, and corrosion inhibitors. In this review, we have highlighted the recent advancements in the development of bioactive Schiff base derivatives and their sensing applications for detecting metal cations. Additionally, various spectroscopic techniques for structural characterization, such as X-ray diffraction analysis (XRD), FT-IR, UV-vis, and NMR spectroscopy were also discussed.
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Affiliation(s)
- Meshal Alshamrani
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
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3
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Haider K, Ahmad K, Najmi AK, Das S, Joseph A, Shahar Yar M. Design, synthesis, biological evaluation, and in silico studies of 2‐aminobenzothiazole derivatives as potent PI3Kα inhibitors. Arch Pharm (Weinheim) 2022; 355:e2200146. [DOI: 10.1002/ardp.202200146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/29/2022] [Accepted: 05/04/2022] [Indexed: 12/14/2022]
Affiliation(s)
- Kashif Haider
- Department of Pharmaceutical Chemistry School of Pharmaceutical Education & Research Jamia Hamdard India
| | - Kamal Ahmad
- Department of Pharmaceutical Chemistry School of Pharmaceutical Education & Research Jamia Hamdard India
| | - Abul Kalam Najmi
- Department of Pharmacology School of Pharmaceutical Education and Research Jamia Hamdard India
| | - Subham Das
- Department of Pharmaceutical Chemistry Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education Manipal India
| | - Alex Joseph
- Department of Pharmaceutical Chemistry Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education Manipal India
| | - M. Shahar Yar
- Department of Pharmaceutical Chemistry School of Pharmaceutical Education & Research Jamia Hamdard India
- Centre for Excellence for Biomaterials Engineering, Faculty of Applied Sciences. AIMST Bedong Malaysia
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Nehra B, Mathew B, A Chawla P. A medicinal chemist's perspective towards structure activity relationship of heterocycle based anti-cancer agents. Curr Top Med Chem 2022; 22:493-528. [PMID: 35021975 DOI: 10.2174/1568026622666220111142617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/13/2021] [Accepted: 12/27/2021] [Indexed: 11/22/2022]
Abstract
AIM To describe structure activity relationship of heterocyclic derivatives with multi-targeted anticancer activity. OBJECTIVES With the following goals in mind, this review tries to describe significant recent advances in the medicinal chemistry of heterocycle-based compounds: (1) To shed light on recent literature focused on heterocyclic derivatives' anticancer potential; (2) To discuss recent advances in the medicinal chemistry of heterocyclic derivatives, as well as their biological implications for cancer eradication; (3) To summarise the comprehensive correlation of structure activity relationship (SAR) with pharmacological outcomes in cancer therapy. BACKGROUND Cancer remains one of the major serious health issues devastating the world today. Cancer is a complex disease in which improperly altered cells proliferate at an uncontrolled, rapid, and severe rate. Variables such as poor dietary habits, high stress, age, and smoking, can all contribute to the development of cancer. Cancer can affect almost any organ or tissue, although the brain, breast, liver, and colon are the most frequently affected organs. From several years, surgical operations and irradiation are in use along with chemotherapy as a primary treatment of cancer but still effective treatment of cancer remains a huge challenge. Chemotherapy is now one of the most effective strategies to eradicate cancer, although it has been shown to have a number of cytotoxic and unfavourable effects on normal cells. Despite all of these cancer treatments, there are several other targets for anticancer drugs. Cancer can be effectively eradicated by focusing on these targets, which include both cell-specific and receptor-specific targets such as tyrosine kinase receptors (TKIs). Heterocyclic scaffolds also have a variety of applications in drug development and are a common moiety in the pharmaceutical, agrochemical, and textile industries. METHODS The association between structural activity relationship data of many powerful compounds and their anticancer potential in vitro and in vivo has been studied. SAR of powerful heterocyclic compounds can also be generated using molecular docking simulations, as reported vastly in literature. CONCLUSIONS Heterocycles have a wide range of applications, from natural compounds to synthesised derivatives with powerful anticancer properties. To avoid cytotoxicity or unfavourable effects on normal mammalian cells due to a lack of selectivity towards the target site, as well as to reduce the occurrence of drug resistance, safer anticancer lead compounds with higher potency and lower cytotoxicity are needed. This review emphasizes on design and development of heterocyclic lead compounds with promising anticancer potential.
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Affiliation(s)
- Bhupender Nehra
- University College of Pharmacy, Guru Kashi University, Talwandi Sabo, Bathinda, Punjab-151302, India
| | - Bijo Mathew
- Dept. of Pharmaceutical Chemistry, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi-682041, India
| | - Pooja A Chawla
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy, Moga-142001, India
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5
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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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6
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Pho C, Frieler M, Akkaraju GR, Naumov AV, Dobrovolny HM. Using mathematical modeling to estimate time-independent cancer chemotherapy efficacy parameters. In Silico Pharmacol 2021; 10:2. [PMID: 34926126 DOI: 10.1007/s40203-021-00117-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/19/2021] [Indexed: 12/09/2022] Open
Abstract
One of the primary cancer treatment modalities is chemotherapy. Unfortunately, traditional anti-cancer drugs are often not selective and cause damage to healthy cells, leading to serious side effects for patients. For this reason more targeted therapeutics and drug delivery methods are being developed. The effectiveness of new treatments is initially determined via in vitro cell viability assays, which determine the IC 50 of the drug. However, these assays are known to result in estimates of IC 50 that depend on the measurement time, possibly resulting in over- or under-estimation of the IC 50 . Here, we test the possibility of using cell growth curves and fitting of mathematical models to determine the IC 50 as well as the maximum efficacy of a drug ( ε max ). We measured cell growth of MCF-7 and HeLa cells in the presence of different concentrations of doxorubicin and fit the data with a logistic growth model that incorporates the effect of the drug. This method leads to measurement time-independent estimates of IC 50 and ε max , but we find that ε max is not identifiable. Further refinement of this methodology is needed to produce uniquely identifiable parameter estimates.
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Affiliation(s)
- Christine Pho
- Department of Physics and Astronomy, Texas Christian University, 2800 S. University Drive, Fort Worth, 76129 TX USA
| | - Madison Frieler
- Department of Biology, Texas Christian University, 2800 S. University Drive, Fort Worth, 76129 TX USA
| | - Giri R Akkaraju
- Department of Biology, Texas Christian University, 2800 S. University Drive, Fort Worth, 76129 TX USA
| | - Anton V Naumov
- Department of Physics and Astronomy, Texas Christian University, 2800 S. University Drive, Fort Worth, 76129 TX USA
| | - Hana M Dobrovolny
- Department of Physics and Astronomy, Texas Christian University, 2800 S. University Drive, Fort Worth, 76129 TX USA
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7
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Sharma B, Singh VJ, Chawla PA. Epidermal growth factor receptor inhibitors as potential anticancer agents: An update of recent progress. Bioorg Chem 2021; 116:105393. [PMID: 34628226 DOI: 10.1016/j.bioorg.2021.105393] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/16/2021] [Accepted: 09/28/2021] [Indexed: 12/20/2022]
Abstract
Epidermal growth factor receptor (EGFR) is a vital intermediate in cell signaling pathway including cell proliferation, angiogenesis, apoptosis, and metastatic spread and also having four divergent members with similar structural features, such as EGFR (HER1/ErbB1), ErbB2 (HER2/neu), ErbB3 (HER3), and ErbB4 (HER4). Despite this, clinically exploited inhibitors of EGFR (including erlotinib, lapatinib, gefitinib, selumetinib, etc.) are not specific thus provoking unenviable adverse effects. Some of the paramount obstacles to generate and develop new lead molecules of EGFR inhibitors are drug resistance, mutation, and also selectivity which inspire medicinal chemists to generate novel chemotypes. The discovery of therapeutic agents that inhibit the precise stage in tumorous cells such as EGFR is one of the chief successful targets in many cancer therapies, including lung and breast cancers. This review aims to compile the various recent progressions (2016-2021) in the discovery and development of diverse epidermal growth factor receptor (EGFR) inhibitors belonging to distinct structural classes like pyrazoline, pyrazole, imidazole, pyrimidine, coumarin, benzothiazole, etc. We have summarized preclinical and clinical data, structure-activity relationships (SAR) containing mechanistic and in silico studies to provide proposals for the design and invention of new EGFR inhibitors with therapeutic significance. The detailed progress of the work in the field will provide inexorable scope for the development of novel drug candidates with greater selectivity and efficacy.
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Affiliation(s)
- Bharti Sharma
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, India
| | - Vikram Jeet Singh
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, India
| | - Pooja A Chawla
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, India.
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8
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Haider K, Rehman S, Pathak A, Najmi AK, Yar MS. Advances in 2-substituted benzothiazole scaffold-based chemotherapeutic agents. Arch Pharm (Weinheim) 2021; 354:e2100246. [PMID: 34467567 DOI: 10.1002/ardp.202100246] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 08/10/2021] [Accepted: 08/13/2021] [Indexed: 01/25/2023]
Abstract
Targeted therapy plays a pivotal role in cancer therapeutics by countering the drawbacks of conventional treatment like adverse events and drug resistance. Over the last decade, heterocyclic derivatives have received considerable attention as cytotoxic agents by modulating various signaling pathways. Benzothiazole is an important heterocyclic scaffold that has been explored for its therapeutic potential. Benzothiazole-based derivatives have emerged as potent inhibitors of enzymes such as EGFR, VEGFR, PI3K, topoisomerases, and thymidylate kinases. Several researchers have designed, synthesized, and evaluated benzothiazole scaffold-based enzyme inhibitors. Of these, several inhibitors have entered various phases of clinical trials. This review describes the recent advances and developments of benzothiazole architecture-based derivatives as potent anticancer agents.
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Affiliation(s)
- Kashif Haider
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi, India
| | - Sara Rehman
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi, India
| | - Ankita Pathak
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi, India
| | - Abul K Najmi
- Department of Pharmacology, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi, India
| | - Mohammad S Yar
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi, India
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9
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Uluçam G, Okan ŞE, Aktaş Ş, Yentürk B. New Schiff-base ligands containing thiophene terminals: Synthesis, characterization and biological activities. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129941] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Almehmadi MA, Aljuhani A, Alraqa SY, Ali I, Rezki N, Aouad MR, Hagar M. Design, synthesis, DNA binding, modeling, anticancer studies and DFT calculations of Schiff bases tethering benzothiazole-1,2,3-triazole conjugates. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129148] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Fu Q, Zhang R, Qiu H, Ma R, Ma Y. A New Method for the Synthesis of 2-Arylbenzothiazoles Oxidized by Selectfluor. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202105010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Irfan A, Batool F, Zahra Naqvi SA, Islam A, Osman SM, Nocentini A, Alissa SA, Supuran CT. Benzothiazole derivatives as anticancer agents. J Enzyme Inhib Med Chem 2020; 35:265-279. [PMID: 31790602 PMCID: PMC6896476 DOI: 10.1080/14756366.2019.1698036] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/19/2019] [Accepted: 11/21/2019] [Indexed: 12/18/2022] Open
Abstract
Benzothiazole (BTA) belongs to the heterocyclic class of bicyclic compounds. BTA derivatives possesses broad spectrum biological activities such as anticancer, antioxidant, anti-inflammatory, anti-tumour, antiviral, antibacterial, anti-proliferative, anti-diabetic, anti-convulsant, analgesic, anti-tubercular, antimalarial, anti-leishmanial, anti-histaminic and anti-fungal among others. The BTA scaffolds showed a crucial role in the inhibition of the metalloenzyme carbonic anhydrase (CA). In this review an extensive literature survey over the last decade discloses the role of BTA derivatives mainly as anticancer agents. Such compounds are effective against various types of cancer cell lines through a multitude of mechanisms, some of which are poorly studied or understood. The inhibition of tumour associated CAs by BTA derivatives is on the other hand better investigated and such compounds may serve as anticancer leads for the development of agents effective against hypoxic tumours.
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Affiliation(s)
- Ali Irfan
- Department of Chemistry, University of Lahore, Sargodha, Pakistan
| | - Fozia Batool
- Department of Chemistry, University of Lahore, Sargodha, Pakistan
| | | | - Amjad Islam
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou, P.R. China
| | - Sameh M. Osman
- Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Alessio Nocentini
- NEUROFARBA Department, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Sesto Fiorentino (Firenze), Italy
| | - Siham A. Alissa
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Claudiu T. Supuran
- NEUROFARBA Department, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Sesto Fiorentino (Firenze), Italy
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13
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Bhat M, Belagali SL. Structural Activity Relationship and Importance of Benzothiazole Derivatives in Medicinal Chemistry: A Comprehensive Review. MINI-REV ORG CHEM 2020. [DOI: 10.2174/1570193x16666190204111502] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:Benzothiazole (1, 3-benzothiazole) is one of the heterocyclic compounds, which is a weak base having varied biological activities. The unique methine center present in the thiazole ring makes benzothiazole as the most important heterocyclic compound. It is a common and integral structure of many natural and synthetic bioactive molecules. Benzothiazole derivatives show a variety of activities, with less toxic effects and their derivatives showed enhanced activities, which has proven Benzothiazole scaffold as one of the important moieties in medicinal chemistry. Benzothiazole ring containing compounds possess various pharmacological activities such as anti-viral, anti-microbial, antiallergic, anti-diabetic, anti-tumor, anti-inflammatory, anthelmitic and anti-cancer, which makes benzothiazole a rapidly developing and interesting compound in the medicinal chemistry. This review briefly explains the importance, common methods of synthesis of the benzothiazole scaffold and also explains the popular benzothiazole molecules which have applications in various fields of chemistry. A review has been carried out based on various pharmacological activities containing benzothiazole moieties and rationalize the activities based on the structural variations. Literature on benzothiazole derivatives reveals that substitution on the C-2 carbon atom and C-6 are the reasons for a variety of biological activities.
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Affiliation(s)
- Mahesh Bhat
- PG Department of Chemistry, Bangur Nagar Arts, Science and Commerce College, Dandeli - 581325 Karnataka, India
| | - Shiddappa Lagamappa Belagali
- Environmental Chemistry Laboratory, Department of Studies in Environmental Science, University of Mysore, Manasagangothri, Mysore -570 006, Karnataka, India
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14
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Tariq S, Kamboj P, Amir M. Therapeutic advancement of benzothiazole derivatives in the last decennial period. Arch Pharm (Weinheim) 2018; 352:e1800170. [PMID: 30488989 DOI: 10.1002/ardp.201800170] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 10/04/2018] [Accepted: 10/10/2018] [Indexed: 11/08/2022]
Abstract
Benzothiazole, a fused heterocyclic moiety, has attracted synthetic and medicinal chemists for good reasons. It is a valuable scaffold that possesses diverse biological activities, such as anticancer, anti-inflammatory, antimicrobial, antiviral, antimalarial, and anticonvulsant effects. This review mainly focusses on the recent research work on the different biological activities of benzothiazole-based compounds.
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Affiliation(s)
- Sana Tariq
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Payal Kamboj
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Mohammad Amir
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
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Özdemir A, Sever B, Altıntop MD. New Benzodioxole-based Pyrazoline Derivatives: Synthesis and Anticandidal, In silico ADME, Molecular Docking Studies. LETT DRUG DES DISCOV 2018. [DOI: 10.2174/1570180815666180326152726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background:
Azoles are commonly used in the treatment and prevention of fungal
infections. They suppress fungal growth by acting on the heme group of lanosterol 14α-demethylase
enzyme (CYP51), thus blocking the biosynthesis of ergosterol.
</P><P>
Objectives: Due to the importance of pyrazolines in the field of antifungal drug design, we aimed to
design and synthesize new pyrazoline-based anticandidal agents.
Methods:
New pyrazoline derivatives were synthesized via the reaction of 1-(chloroacetyl)-3-(2-
thienyl)-5-(1,3-benzodioxol-5-yl)-2-pyrazoline with aryl thiols. These compounds were evaluated
for their in vitro antifungal effects on Candida species. Docking studies were performed to predict
the affinity of the most effective anticandidal agents to substrate binding site of CYP51. Furthermore,
MTT assay was performed to determine the cytotoxic effects of the compounds on NIH/3T3
mouse embryonic fibroblast cell line. A computational study for the prediction of ADME properties
of all compounds was also carried out.
Results:
Compounds 5, 8, 10 and 12 were found as the most potent anticandidal agents against
Candida albicans and Candida glabrata in this series with the same MIC values of ketoconazole
and they also exhibited low toxicity against NIH/3T3 cells. Docking results indicated that all these
compounds showed good binding affinity into the active site of CYP51. In particular, chloro
substituted compounds 8 and 12 bind to CYP51 through direct coordination with the heme group.
According to in silico studies, compound 8 only violated one parameter of Lipinski’s rule of five,
making it a potential orally bioavailable agent.
Conclusion:
Compound 8 was defined as a promising candidate for further in vitro and in vivo
studies.
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Affiliation(s)
- Ahmet Özdemir
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskişehir, Turkey
| | - Belgin Sever
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskişehir, Turkey
| | - Mehlika Dilek Altıntop
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskişehir, Turkey
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Kumari B, Chauhan K, Trivedi J, Jaiswal V, Kanwar SS, Pokharel YR. Benzothiazole-Based-Bioconjugates with Improved Antimicrobial, Anticancer and Antioxidant Potential. ChemistrySelect 2018. [DOI: 10.1002/slct.201801936] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Bhawana Kumari
- School of Chemistry; Shoolini University, Solan; HP-173229 India
| | - Kalpana Chauhan
- School of Chemistry; Shoolini University, Solan; HP-173229 India
| | - Jalpa Trivedi
- Department of Science & Humanities; Indus University, Ahmedabad, Gujarat; India
| | - Varun Jaiswal
- School of Bioinformatics; Shoolini University; Solan 173229 India
| | | | - Yuba Raj Pokharel
- Faculty of Life Science and Biotechnology; South Asian University; New Delhi-110021 India
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17
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Altıntop MD, Sever B, Akalın Çiftçi G, Turan-Zitouni G, Kaplancıklı ZA, Özdemir A. Design, synthesis, in vitro and in silico evaluation of a new series of oxadiazole-based anticancer agents as potential Akt and FAK inhibitors. Eur J Med Chem 2018; 155:905-924. [PMID: 29966916 DOI: 10.1016/j.ejmech.2018.06.049] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/19/2018] [Accepted: 06/21/2018] [Indexed: 12/23/2022]
Abstract
In the current work, new 1,3,4-oxadiazole derivatives were synthesized and investigated for their cytotoxic effects on A549 human lung adenocarcinoma, C6 rat glioma and NIH/3T3 mouse embryonic fibroblast cell lines. Compounds 2, 6 and 9 were found to be the most potent anticancer agents against A549 and C6 cell lines and therefore their effects on apoptosis, caspase-3 activation, Akt, FAK, mitochondrial membrane potential and ultrastructural morphological changes were evaluated. N-(5-Nitrothiazol-2-yl)-2-[[5-[((5,6,7,8-tetrahydronaphthalen-2-yl)oxy)methyl]-1,3,4-oxadiazol-2-yl]thio]acetamide (9) increased early and late apoptotic cell population in A549 and C6 cells more than cisplatin and caused more mitochondrial membrane depolarization in both cell lines than cisplatin. On the other hand, N-(6-methoxybenzothiazol-2-yl)-2-[[5-[((5,6,7,8-tetrahydronaphthalen-2-yl)oxy)methyl]-1,3,4-oxadiazol-2-yl]thio]acetamide (6) caused higher caspase-3 activation than cisplatin in both cell lines. Compound 6 showed significant Akt inhibitory activity in both cell lines. Moreover, compound 6 significantly inhibited FAK (Phospho-Tyr397) activity in C6 cell line. Molecular docking simulations demonstrated that compound 6 fitted into the active sites of Akt and FAK with high affinity and substrate-specific interactions. Furthermore, compounds 2, 6 and 9 caused apoptotic morphological changes in both cell lines obtained from micrographs by transmission electron microscopy. A computational study for the prediction of ADME properties of all compounds was also performed. These compounds did not violate Lipinski's rule, making them potential orally bioavailable anticancer agents.
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Affiliation(s)
- Mehlika Dilek Altıntop
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey.
| | - Belgin Sever
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
| | - Gülşen Akalın Çiftçi
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
| | - Gülhan Turan-Zitouni
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
| | - Zafer Asım Kaplancıklı
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
| | - Ahmet Özdemir
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
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Altıntop MD, Sever B, Akalın Çiftçi G, Özdemir A. Design, Synthesis, and Evaluation of a New Series of Thiazole-Based Anticancer Agents as Potent Akt Inhibitors. Molecules 2018; 23:molecules23061318. [PMID: 29857484 PMCID: PMC6100633 DOI: 10.3390/molecules23061318] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 05/28/2018] [Accepted: 05/29/2018] [Indexed: 12/20/2022] Open
Abstract
In an attempt to develop potent anticancer agents targeting Akt, new thiazole derivatives (1⁻10) were synthesized and investigated for their cytotoxic effects on A549 human lung adenocarcinoma, C6 rat glioma, and NIH/3T3 (healthy) mouse embryonic fibroblast cell lines. The most potent compounds were also investigated for their effects on apoptosis and Akt pathway. The most promising anticancer agent was found to be 2-[2-((4-(4-cyanophenoxy)phenyl)methylene)hydrazinyl]-4-(4-cyanophenyl)thiazole (6), due to its selective inhibitory effects on A549 and C6 cells with IC50 values of 12.0 ± 1.73 µg/mL and 3.83 ± 0.76 µg/mL, respectively. Furthermore, compound 6 increased early and late apoptotic cell population (32.8%) in C6 cell line more than cisplatin (28.8%) and significantly inhibited the Akt enzyme. The molecular docking study was performed to predict the possible binding modes of compounds A, 6, and 8 inside the active site of Akt (PDB code: 4EJN). Molecular docking simulations were found to be in accordance with in vitro studies and, hence, supported the biological activity. A computational study for the prediction of absorption, distribution, metabolism and excretion (ADME) properties of all compounds was also performed. On the basis of Lipinski's rule of five, the compounds were expected to be potential orally bioavailable agents.
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Affiliation(s)
- Mehlika Dilek Altıntop
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskişehir, Turkey.
| | - Belgin Sever
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskişehir, Turkey.
| | - Gülşen Akalın Çiftçi
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskişehir, Turkey.
| | - Ahmet Özdemir
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskişehir, Turkey.
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Abdel Aziz AA, El-Sayed IS, Khalil MM. Some divalent metal(II) complexes of novel potentially tetradentate Schiff base N
,N
′-bis(2-carboxyphenylimine)-2,5-thiophenedicarboxaldhyde: Synthesis, spectroscopic characterization and bioactivities. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3730] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ayman A. Abdel Aziz
- Department of Chemistry, Faculty of Science; Ain Shams University; 11566 Cairo Egypt
| | - Ibrahim S.A. El-Sayed
- Department of Chemistry, Faculty of Science; Ain Shams University; 11566 Cairo Egypt
| | - Mostafa M.H. Khalil
- Department of Chemistry, Faculty of Science; Ain Shams University; 11566 Cairo Egypt
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