1
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Sharma H, Kim DY, Shim KH, Sharma N, An SSA. Multi-Targeting Neuroprotective Effects of Syzygium aromaticum Bud Extracts and Their Key Phytocompounds against Neurodegenerative Diseases. Int J Mol Sci 2023; 24:8148. [PMID: 37175851 PMCID: PMC10178913 DOI: 10.3390/ijms24098148] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/20/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease that causes a gradual loss of normal motor and cognitive function. The complex AD pathophysiology involves various factors such as oxidative stress, neuroinflammation, amyloid-beta (Aβ) aggregation, disturbed neurotransmission, and apoptosis. The available drugs suffer from a range of side effects and are not able to cover different aspects of the disease. Therefore, finding a safer therapeutic approach that can affect multiple targets at a time is highly desirable. In the present study, the underlying neuroprotective mechanism of an important culinary spice, Syzygium aromaticum (Clove) extract, and major bioactive compounds were studied in hydrogen peroxide-induced oxidative stress in human neuroblastoma SH-SY5Y cell lines as a model. The extracts were subjected to GC-MS to identify important bioactive components. The extracts and key bio-actives reduced reactive oxygen species (ROS), restored mitochondrial membrane potential (MMP), and provided neuroprotection from H2O2-induced oxidative stress in cell-based assays due to the antioxidant action. They also reduced lipid peroxidation significantly and restored GSH content. Clove extracts have also displayed anti-acetylcholinesterase (AChE) activity, anti-glycation potential, and Aβ aggregation/fibrilization inhibition. The multitarget neuroprotective approach displayed by Clove makes it a potential candidate for AD drug development.
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Affiliation(s)
| | | | | | - Niti Sharma
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of Korea
| | - Seong Soo A. An
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of Korea
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2
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Mehmood H, Akhtar T, Haroon M, Khalid M, Woodward S, Asghar MA, Baby R, Orfali R, Perveen S. Synthesis of Fluorinated Hydrazinylthiazole Derivatives: A Virtual and Experimental Approach to Diabetes Management. ACS OMEGA 2023; 8:11433-11446. [PMID: 37008089 PMCID: PMC10061536 DOI: 10.1021/acsomega.3c00265] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 03/07/2023] [Indexed: 06/19/2023]
Abstract
A novel series of fluorophenyl-based thiazoles was synthesized following the Hanztsch method. All of the compounds were initially verified with physical parameters (color, melting point, retardation factor (R f)), which were further confirmed by several spectroscopic methods, including ultraviolet-visible (UV-visible), Fourier-transform infrared (FTIR), 1H, 13C, 19F NMR, and high-resolution mass spectrometry (HRMS). The binding interactions of all compounds were studied using a molecular docking simulation approach. Furthermore, each compound was evaluated for its alpha(α)-amylase, antiglycation, and antioxidant potentials. The biocompatibility of all compounds was checked with an in vitro hemolytic assay. All synthesized scaffolds were found biocompatible with minimal lysis of human erythrocytes as compared to the standard Triton X-100. Among the tested compounds, the analogue 3h (IC50 = 5.14 ± 0.03 μM) was found to be a highly potent candidate against α-amylase as compared to the standard (acarbose, IC50 = 5.55 ± 0.06 μM). The compounds 3d, 3f, 3i, and 3k exhibited excellent antiglycation inhibition potential with their IC50 values far less than the standard amino guanidine (IC50 = 0.403 ± 0.001 mg/mL). The antidiabetic potential was further supported by docking studies. Docking studies revealed that all synthesized compounds exhibited various interactions along enzyme active sites (pi-pi, H-bonding, van der Waals) with varied binding energies.
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Affiliation(s)
- Hasnain Mehmood
- Department
of Chemistry, Mirpur University of Science
and Technology (MUST), Mirpur 10250, Azad Jammu and Kashmir, Pakistan
| | - Tashfeen Akhtar
- Department
of Chemistry, Mirpur University of Science
and Technology (MUST), Mirpur 10250, Azad Jammu and Kashmir, Pakistan
| | - Muhammad Haroon
- Department
of Chemistry, Mirpur University of Science
and Technology (MUST), Mirpur 10250, Azad Jammu and Kashmir, Pakistan
- Department
of Chemistry, Government Major Muhammad Afzal Khan (Shaheed), Boys
Degree College Afzalpur, Mirpur (Affiliated
with Mirpur University of Science and Technology (MUST)), Mirpur 10250, Azad Jammu and Kashmir, Pakistan
| | - Muhammad Khalid
- Institute
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
- Center
for Theoretical and Computational Research, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Simon Woodward
- GSK,
Carbon Neutral Laboratories for Sustainable Chemistry, University Park Nottingham, Nottingham NG7 2RD, U.K.
| | - Muhammad Adnan Asghar
- Department
of Chemistry, Division of Science and Technology, University of Education, Lahore 54770, Pakistan
| | - Rabia Baby
- Department
of Education, Sukkur IBA University, Sukkur 65200, Sindh, Pakistan
| | - Raha Orfali
- Department
of Pharmacognosy, Collage of Pharmacy, King
Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Shagufta Perveen
- Department
of Chemistry, School of Computer, Mathematical and Natural Sciences, Morgan State University, Baltimore, Maryland 21251, United States
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3
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Taha M, Imran S, Rahim F, Uddin N, Iqbal N, Khan KM, Farooq RK, Alomari M, Islam I, Algheribe S. Discovering biological efficacy of new thiadiazole as effective inhibitors of urease, glycation, and (DPPH) scavengers: Biochemical and in silico study. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Taha M, Rahim F, Khan IU, Uddin N, Farooq RK, Wadood A, Rehman AU, Khan KM. Synthesis of thiazole-based-thiourea analogs: as anticancer, antiglycation and antioxidant agents, structure activity relationship analysis and docking study. J Biomol Struct Dyn 2023; 41:12077-12092. [PMID: 36695088 DOI: 10.1080/07391102.2023.2171134] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 12/27/2022] [Indexed: 01/26/2023]
Abstract
This work reports the convenient approach for the synthesis of thiazole based thiourea derivatives (1-21) from 2-bromo-1-(4-fluorophenyl)thiazole-1-one and phenyl isothiocyanates. The scope and diversity were achieved from readily available phenyl isothiocyanates. This protocol involves an oxidative C-S bond formation. Moreover, hybrid thiazole based thiourea scaffolds (1-21) according to literature known protocol were screened in vitro for anticancer Potential against breast cancer, antiglycation and antioxidant inhibitory profile. All newly developed scaffolds were showed moderate to good inhibitory potentials ranging from 0.10 ± 0.01 µM to 11.40 ± 0.20 µM, 64.20 ± 0.40 µM to 385.10 ± 1.70 µM and 8.90 ± 0.20 µM to 39.20 ± 0.50 µM against anticancer, antiglycation and antioxidant respectively. Among the series, compounds 12 (IC50 = 0.10 ± 0.01 µM), 10 (IC50 = 64.20 ± 0.40 µM) and 12 (IC50 = 8.90 ± 0.20 µM) with flouro substitution at phenyl ring of thiourea were identified to be the most potent among the series having excellent anticancer, antiglycation and antioxidant potential. The structure of all the newly synthetics scaffolds were confirmed by using different types of spectroscopic techniques such as HREI-MS, 1H- and 13C-NMR spectroscopy. To find structure-activity relationship, molecular docking studies were carried out to understand the binding mode of active inhibitors with active site of enzymes and results supported the experimental data.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Muhammad Taha
- Department of clinical pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Fazal Rahim
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Ihsan Ullah Khan
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Nizam Uddin
- Department of Chemistry, University of Karachi, Karachi, Pakistan
| | - Rai Khalid Farooq
- Department of Neuroscience Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Abdul Wadood
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Ashfaq Ur Rehman
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Khalid Mohammed Khan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
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5
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Saleem F, Khan KM, Ullah N, Özil M, Baltaş N, Hameed S, Salar U, Wadood A, Rehman AU, Kumar M, Taha M, Haider SM. Bioevaluation of synthetic pyridones as dual inhibitors of α-amylase and α-glucosidase enzymes and potential antioxidants. Arch Pharm (Weinheim) 2023; 356:e2200400. [PMID: 36284484 DOI: 10.1002/ardp.202200400] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/28/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2022]
Abstract
Herein, a library of novel pyridone derivatives 1-34 was designed, synthesized, and evaluated for α-amylase and α-glucosidase inhibitory as well as antioxidant activities. Pyridone derivatives 1-34 were synthesized via a one-pot multi-component reaction of variously substituted aromatic aldehydes, acetophenone, ethyl cyanoacetate, and ammonium acetate in absolute ethanol. Synthetic compounds 1-34 were structurally characterized by different spectroscopic techniques. Most of the tested compounds showed more promising inhibition potential than the standard acarbose (IC50 = 14.87 ± 0.16 µM) but compounds 13 and 12 were found to be the most potent compounds with IC50 values of 9.20 ± 0.14 µM and 3.05 ± 0.18 µM against α-amylase and α-glucosidase enzymes, respectively. Compounds 1-34 also displayed moderate antioxidant potential in the range of IC50 = 96.50 ± 0.45 to 189.98 ± 1.00 µM in comparison to the control butylated hydroxytoluene (BHT) (IC50 = 66.50 ± 0.36 µM), in DPPH radical scavenging activities. Additionally, all synthetic derivatives were subjected to a molecular docking study to investigate the interaction details of compounds 1-34 (ligands) with the active site of enzymes (receptors). These results indicate that the newly synthesized pyridone class may serve as promising lead candidates for controlling diabetes mellitus and as antioxidants.
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Affiliation(s)
- Faiza Saleem
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Khalid Mohammed Khan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan.,Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Nisar Ullah
- Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
| | - Musa Özil
- Department of Chemistry, Recep Tayyip Erdogan University, Rize, Turkey
| | - Nimet Baltaş
- Department of Chemistry, Recep Tayyip Erdogan University, Rize, Turkey
| | - Shehryar Hameed
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Uzma Salar
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Abdul Wadood
- Department of Biochemistry, Abdul Wali Khan University, Mardan, Pakistan
| | - Ashfaq Ur Rehman
- School of Biological Sciences, University of California, Irvine, California, USA
| | - Mukesh Kumar
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Muhammad Taha
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Syed Moazzam Haider
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
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6
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Khatun S, Singh A, Bader GN, Sofi FA. Imidazopyridine, a promising scaffold with potential medicinal applications and structural activity relationship (SAR): recent advances. J Biomol Struct Dyn 2022; 40:14279-14302. [PMID: 34779710 DOI: 10.1080/07391102.2021.1997818] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Imidazopyridine scaffold has gained tremendous importance over the past few decades. Imidazopyridines have been expeditiously used for the rationale design and development of novel synthetic analogs for various therapeutic disorders. A wide variety of imidazopyridine derivatives have been developed as potential anti-cancer, anti-diabetic, anti-tubercular, anti-microbial, anti-viral, anti-inflammatory, central nervous system (CNS) agents besides other chemotherapeutic agents. Imidazopyridine heterocyclic system acts as a key pharmacophore motif for the identification and optimization of lead structures to increase medicinal chemistry toolbox. The present review highlights the medicinal significances of imidazopyridines for their rationale development as lead molecules with improved therapeutic efficacies. This review further emphasis on the structure-activity relationships (SARs) of the various designed imidazopyridines to establish a relationship between the key structural features versus the biological activities.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Samima Khatun
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Punjab, India
| | - Abhinav Singh
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Punjab, India
| | - Ghulam N Bader
- Department of Pharmaceutical Sciences, School of Applied Sciences and Technology, University of Kashmir, Srinagar, J & K, India
| | - Firdoos Ahmad Sofi
- Department of Pharmaceutical Sciences, School of Applied Sciences and Technology, University of Kashmir, Srinagar, J & K, India
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7
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Begum F, Rehman NU, Khan A, Iqbal S, Paracha RZ, Uddin J, Al-Harrasi A, Lodhi MA. 2-Mercaptobenzimidazole clubbed hydrazone for Alzheimer’s therapy: In vitro, kinetic, in silico, and in vivo potentials. Front Pharmacol 2022; 13:946134. [PMID: 36059999 PMCID: PMC9428891 DOI: 10.3389/fphar.2022.946134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Alzheimer’s is a type of dementia that affects the affected person’s thinking, memory, and behavior. It is a multifactorial disease, developed by the breakdown of the neurotransmitter acetylcholine via acetylcholinesterase (AChE). The present study was designed to evaluate potential inhibitors of acetylcholinesterase that could be used as a therapeutic agent against Alzheimer’s disease (AD). For this course, synthetic compounds of the Schiff bases class of 2-mercaptobenzimidazole hydrazone derivatives (9–14) were determined to be potent acetylcholinesterase inhibitors with IC50 values varying between 37.64 ± 0.2 and 74.76 ± 0.3 μM. The kinetic studies showed that these are non-competitive inhibitors of AChE. Molecular docking studies revealed that all compounds accommodate well in the active site and are stabilized by hydrophobic interactions and hydrogen bonding. Molecular dynamics (MD) simulations of selected potent inhibitors confirm their stability in the active site of the enzyme. Moreover, all compounds showed antispasmodic and Ca2+ antagonistic activities. Among the selected compounds of 2-mercaptobenzimidazole hydrazone derivatives, compound 11 exhibited the highest activity on spontaneous and K+-induced contractions, followed by compound 13. Therefore, the Ca2+ antagonistic, AChE inhibition potential, and safety profile of these compounds in the human neutrophil viability assay make them potential drug candidates against AD in the future.
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Affiliation(s)
- Farida Begum
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Najeeb Ur Rehman
- Natural and Medical Sciences Research Centre, University of Nizwa, Nizwa, Birkat-ul-Mouz, Oman
| | - Ajmal Khan
- Natural and Medical Sciences Research Centre, University of Nizwa, Nizwa, Birkat-ul-Mouz, Oman
- *Correspondence: Ajmal Khan, ; Ahmed Al-Harrasi, ; Muhammad Arif Lodhi,
| | - Sajid Iqbal
- Department of Industrial Biotechnology, Atta-ur-Raman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Rehan Zafar Paracha
- School of Interdisciplinary Engineering and Sciences (SINES), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Jalal Uddin
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Centre, University of Nizwa, Nizwa, Birkat-ul-Mouz, Oman
- *Correspondence: Ajmal Khan, ; Ahmed Al-Harrasi, ; Muhammad Arif Lodhi,
| | - Muhammad Arif Lodhi
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
- *Correspondence: Ajmal Khan, ; Ahmed Al-Harrasi, ; Muhammad Arif Lodhi,
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8
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Lalavani NH, Gandhi HR, Bhensdadia KA, Patel RK, Baluja SH. Synthesis, pharmacokinetic and molecular docking studies of new benzohydrazide derivatives possessing anti-tubercular activity against Mycobacterium tuberculosis H37Rv. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131884] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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9
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Savateev KV, Spasov AA, Rusinov VL. SMALL SYNTHETIC MOLECULES WITH ANTIGLYCATION ACTIVITY. STRUCTURE - ACTIVITY RELATIONSHIP. RUSSIAN CHEMICAL REVIEWS 2022. [DOI: 10.1070/rcr5041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Taha M, Alshamrani FJ, Rahim F, Anouar EH, Uddin N, Chigurupati S, Almandil NB, Farooq RK, Iqbal N, Aldubayan M, Venugopal V, Khan KM. Synthesis, characterization, biological evaluation, and kinetic study of indole base sulfonamide derivatives as acetylcholinesterase inhibitors in search of potent anti-Alzheimer agent. JOURNAL OF KING SAUD UNIVERSITY - SCIENCE 2021; 33:101401. [DOI: 10.1016/j.jksus.2021.101401] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2023]
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11
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Prezent MA, Baranin SV. Synthesis and Biological Evaluation of New 4,5,6,7‐Tetrahydro‐1
H
‐imidazo[4,5‐
c
]pyridine Derivatives. ChemistrySelect 2020. [DOI: 10.1002/slct.202003440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mikhail A. Prezent
- N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Sergey V. Baranin
- N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky Prospect 119991 Moscow Russian Federation
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12
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Nobre PC, Vargas HA, Jacoby CG, Schneider PH, Casaril AM, Savegnago L, Schumacher RF, Lenardão EJ, Ávila DS, Rodrigues Junior LB, Perin G. Synthesis of enantiomerically pure glycerol derivatives containing an organochalcogen unit: In vitro and in vivo antioxidant activity. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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13
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Uddin I, Taha M, Rahim F, Wadood A. Synthesis and molecular docking study of piperazine derivatives as potent inhibitor of thymidine phosphorylase. Bioorg Chem 2018; 78:324-331. [DOI: 10.1016/j.bioorg.2018.03.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 03/28/2018] [Accepted: 03/29/2018] [Indexed: 11/29/2022]
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14
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Synthesis, α-glucosidase inhibition and molecular docking study of coumarin based derivatives. Bioorg Chem 2018; 77:586-592. [DOI: 10.1016/j.bioorg.2018.01.033] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 01/21/2018] [Accepted: 01/27/2018] [Indexed: 12/12/2022]
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15
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Krause M, Foks H, Gobis K. Pharmacological Potential and Synthetic Approaches of Imidazo[4,5-b]pyridine and Imidazo[4,5-c]pyridine Derivatives. Molecules 2017; 22:molecules22030399. [PMID: 28273868 PMCID: PMC6155225 DOI: 10.3390/molecules22030399] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 03/02/2017] [Indexed: 12/23/2022] Open
Abstract
The structural resemblance between the fused imidazopyridine heterocyclic ring system and purines has prompted biological investigations to assess their potential therapeutic significance. They are known to play a crucial role in numerous disease conditions. The discovery of their first bioactivity as GABAA receptor positive allosteric modulators divulged their medicinal potential. Proton pump inhibitors, aromatase inhibitors, and NSAIDs were also found in this chemical group. Imidazopyridines have the ability to influence many cellular pathways necessary for the proper functioning of cancerous cells, pathogens, components of the immune system, enzymes involved in carbohydrate metabolism, etc. The collective results of biochemical and biophysical properties foregrounded their medicinal significance in central nervous system, digestive system, cancer, inflammation, etc. In recent years, new preparative methods for the synthesis of imidazopyridines using various catalysts have been described. The present manuscript to the best of our knowledge is the complete compilation on the synthesis and medicinal aspects of imidazo[4,5-b]pyridines and imidazo[4,5-c]pyridines reported from the year 2000 to date, including structure–activity relationships.
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Affiliation(s)
- Malwina Krause
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Ave., 80-416 Gdańsk, Poland.
| | - Henryk Foks
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Ave., 80-416 Gdańsk, Poland.
| | - Katarzyna Gobis
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Ave., 80-416 Gdańsk, Poland.
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16
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In silico binding analysis and SAR elucidations of newly designed benzopyrazine analogs as potent inhibitors of thymidine phosphorylase. Bioorg Chem 2016; 68:80-9. [DOI: 10.1016/j.bioorg.2016.07.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 07/21/2016] [Accepted: 07/25/2016] [Indexed: 11/21/2022]
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17
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Rahim F, Ullah H, Taha M, Wadood A, Javed MT, Rehman W, Nawaz M, Ashraf M, Ali M, Sajid M, Ali F, Khan MN, Khan KM. Synthesis and in vitro acetylcholinesterase and butyrylcholinesterase inhibitory potential of hydrazide based Schiff bases. Bioorg Chem 2016; 68:30-40. [PMID: 27441832 DOI: 10.1016/j.bioorg.2016.07.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 06/29/2016] [Accepted: 07/06/2016] [Indexed: 01/18/2023]
Abstract
To discover multifunctional agents for the treatment of Alzheimer's disease, a series of hydrazide based Schiff bases were designed and synthesized based on multitarget-directed strategy. We have synthesized twenty-eight analogs of hydrazide based Schiff bases, characterized by various spectroscopic techniques and evaluated in vitro for acetylcholinesterase and butyrylcholinesterase inhibition. All compounds showed varied degree of acetylcholinesterase and butyrylcholinesterase inhibition when compared with standard Eserine. Among the series, compounds 10, 3 and 24 having IC50 values 4.12±0.01, 8.12±0.01 and 8.41±0.06μM respectively showed potent acetylcholinesterase inhibition when compared with Eserine (IC50=0.85±0.0001μM). Three compounds 13, 24 and 3 having IC50 values 6.51±0.01, 9.22±0.07 and 37.82±0.14μM respectively showed potent butyrylcholinesterase inhibition by comparing with eserine (IC50=0.04±0.0001μM). The remaining compounds also exhibited moderate to weak inhibitory potential. Structure activity relationship has been established. Through molecular docking studies the binding interaction was confirmed.
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Affiliation(s)
- Fazal Rahim
- Department of Chemistry, Hazara University, Mansehra 21300, Pakistan.
| | - Hayat Ullah
- Department of Chemistry, Hazara University, Mansehra 21300, Pakistan
| | - Muhammad Taha
- Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA (UiTM), Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia; Faculty of Applied Science, UiTM, 40450 Shah Alam, Selangor, Malaysia
| | - Abdul Wadood
- Department of Biohemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | | | - Wajid Rehman
- Department of Chemistry, Hazara University, Mansehra 21300, Pakistan
| | - Mohsan Nawaz
- Department of Chemistry, Hazara University, Mansehra 21300, Pakistan
| | - Muhammad Ashraf
- Department of Biochemistry and Biotechnology, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Ali
- Center for Advanced Drug Research, COMSATS Institute of Information Technology, University Road, Abbottabad 22060, KPK, Pakistan
| | - Muhammad Sajid
- Department of Biochemistry, Hazara University, Mansehra 21300, Pakistan
| | - Farman Ali
- Department of Chemistry, Hazara University, Mansehra 21300, Pakistan
| | | | - Khalid Mohammed Khan
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
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Benzimidazole derivatives as new α-glucosidase inhibitors and in silico studies. Bioorg Chem 2015; 64:29-36. [PMID: 26637946 DOI: 10.1016/j.bioorg.2015.11.006] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 11/09/2015] [Accepted: 11/21/2015] [Indexed: 12/17/2022]
Abstract
Newly synthesized benzimidazole hydrazone derivatives 1-26 were evaluated for their α-glucosidase inhibitory activity. Compounds 1-26 exhibited varying degrees of yeast α-glucosidase inhibitory activity with IC50 values between 8.40 ± 0.76 and 179.71 ± 1.11 μM when compared with standard acarbose. In this assay, seven compounds that showed highest inhibitory effects than the rest of benzimidazole series were identified. All the synthesized compounds were characterized by different spectroscopic methods adequately. We further evaluated the interaction of the active compounds with enzyme with the help of docking studies.
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