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Bansal R, Singh R, Shubra Dutta T, Ahmad Dar Z, Bajpai A. Indanone: a promising scaffold for new drug discovery against neurodegenerative disorders. Drug Discov Today 2024:104063. [PMID: 38901670 DOI: 10.1016/j.drudis.2024.104063] [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: 02/02/2024] [Revised: 05/03/2024] [Accepted: 06/08/2024] [Indexed: 06/22/2024]
Abstract
Indanone is a versatile scaffold that has a number of pharmacological properties. The successful development and ensuing approval of indanone-derived donepezil as a drug of choice for Alzheimer's disease attracted significant scientific interest in this moiety. Indanones could act as small molecule chemical probes as they have strong affinity towards several critical enzymes associated with the pathophysiology of various neurological disorders. Inhibition of these enzymes elevates the levels of neuroprotective brain chemicals such as norepinephrine, serotonin and dopamine. Further, indanone derivatives are capable of modulating the activities of both monoamine oxidases (MAO-A and -B) and acetylcholinesterase (AChE), and thus could be useful in various neurodegenerative diseases. This review article presents a panoramic view of the research carried out on the indanone nucleus in the development of potential neuroprotective agents.
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Affiliation(s)
- Ranju Bansal
- University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh-160014, India.
| | - Ranjit Singh
- University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh-160014, India
| | - Tuhin Shubra Dutta
- University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh-160014, India
| | - Zahid Ahmad Dar
- University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh-160014, India
| | - Ankit Bajpai
- University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh-160014, India
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2
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Lv Y, Zheng Z, Liu R, Guo J, Zhang C, Xie Y. Monoamine oxidase B inhibitors based on natural privileged scaffolds: A review of systematically structural modification. Int J Biol Macromol 2023; 251:126158. [PMID: 37549764 DOI: 10.1016/j.ijbiomac.2023.126158] [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: 06/06/2023] [Revised: 07/28/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
Monoamine oxidase is a flavin enzyme that catalyzes the oxidation of monoamine neurotransmitters in the brain. Various toxic by-products, aldehydes and hydrogen peroxide produced during the catalytic process, can cause oxidative stress and neuronal cell death. Overexpression of MAO-B and insufficient dopamine concentration are recognized as pathological factors in neurodegenerative diseases (NDs) including Parkinson's disease (PD) and Alzheimer's disease (AD). Therefore, the inhibition of MAO-B is an attractive target for the treatment of NDs. Despite significant efforts, few selective and reversible MAO-B inhibitors have been clinically approved. Natural products have emerged as valuable sources of lead compounds in drug discovery. Compounds such as chromone, coumarin, chalcone, caffeine, and aurone, present in natural structures, are considered as privileged scaffolds in the synthesis of MAO-B inhibitors. In this review, we summarized the structure-activity relationship (SAR) of MAO-B inhibitors based on the naturally privileged scaffolds over the past 20 years. Additionally, we proposed a balanced discussion on the advantages and limitations of natural scaffold-based MAO-B inhibitors with providing a future perspective in drug development.
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Affiliation(s)
- Yangjing Lv
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Zhiyuan Zheng
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Renzheng Liu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Jianan Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Changjun Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China.
| | - Yuanyuan Xie
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China; Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceutical, Zhejiang University of Technology, Hangzhou, China; Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, China; Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, China.
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3
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Paolino M, de Candia M, Purgatorio R, Catto M, Saletti M, Tondo AR, Nicolotti O, Cappelli A, Brizzi A, Mugnaini C, Corelli F, Altomare CD. Investigation on Novel E/Z 2-Benzylideneindan-1-One-Based Photoswitches with AChE and MAO-B Dual Inhibitory Activity. Molecules 2023; 28:5857. [PMID: 37570828 PMCID: PMC10421270 DOI: 10.3390/molecules28155857] [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: 06/25/2023] [Revised: 07/22/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
The multitarget therapeutic strategy, as opposed to the more traditional 'one disease-one target-one drug', may hold promise in treating multifactorial neurodegenerative syndromes, such as Alzheimer's disease (AD) and related dementias. Recently, combining a photopharmacology approach with the multitarget-directed ligand (MTDL) design strategy, we disclosed a novel donepezil-like compound, namely 2-(4-((diethylamino)methyl)benzylidene)-5-methoxy-2,3-dihydro-1H-inden-1-one (1a), which in the E isomeric form (and about tenfold less in the UV-B photo-induced isomer Z) showed the best activity as dual inhibitor of the AD-related targets acetylcholinesterase (AChE) and monoamine oxidase B (MAO-B). Herein, we investigated further photoisomerizable 2-benzylideneindan-1-one analogs 1b-h with the unconjugated tertiary amino moiety bearing alkyls of different bulkiness and lipophilicity. For each compound, the thermal stable E geometric isomer, along with the E/Z mixture as produced by UV-B light irradiation in the photostationary state (PSS, 75% Z), was investigated for the inhibition of human ChEs and MAOs. The pure E-isomer of the N-benzyl(ethyl)amino analog 1h achieved low nanomolar AChE and high nanomolar MAO-B inhibition potencies (IC50s 39 and 355 nM, respectively), whereas photoisomerization to the Z isomer (75% Z in the PSS mixture) resulted in a decrease (about 30%) of AChE inhibitory potency, and not in the MAO-B one. Molecular docking studies were performed to rationalize the different E/Z selectivity of 1h toward the two target enzymes.
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Affiliation(s)
- Marco Paolino
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Modesto de Candia
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Rosa Purgatorio
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Marco Catto
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Mario Saletti
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Anna Rita Tondo
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Orazio Nicolotti
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Andrea Cappelli
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Antonella Brizzi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Claudia Mugnaini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Federico Corelli
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Cosimo D. Altomare
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
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Mateev E, Georgieva M, Mateeva A, Zlatkov A, Ahmad S, Raza K, Azevedo V, Barh D. Structure-Based Design of Novel MAO-B Inhibitors: A Review. Molecules 2023; 28:4814. [PMID: 37375370 DOI: 10.3390/molecules28124814] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
With the significant growth of patients suffering from neurodegenerative diseases (NDs), novel classes of compounds targeting monoamine oxidase type B (MAO-B) are promptly emerging as distinguished structures for the treatment of the latter. As a promising function of computer-aided drug design (CADD), structure-based virtual screening (SBVS) is being heavily applied in processes of drug discovery and development. The utilization of molecular docking, as a helping tool for SBVS, is providing essential data about the poses and the occurring interactions between ligands and target molecules. The current work presents a brief discussion of the role of MAOs in the treatment of NDs, insight into the advantages and drawbacks of docking simulations and docking software, and a look into the active sites of MAO-A and MAO-B and their main characteristics. Thereafter, we report new chemical classes of MAO-B inhibitors and the essential fragments required for stable interactions focusing mainly on papers published in the last five years. The reviewed cases are separated into several chemically distinct groups. Moreover, a modest table for rapid revision of the revised works including the structures of the reported inhibitors together with the utilized docking software and the PDB codes of the crystal targets applied in each study is provided. Our work could be beneficial for further investigations in the search for novel, effective, and selective MAO-B inhibitors.
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Affiliation(s)
- Emilio Mateev
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University-Sofia, 1000 Sofia, Bulgaria
| | - Maya Georgieva
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University-Sofia, 1000 Sofia, Bulgaria
| | - Alexandrina Mateeva
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University-Sofia, 1000 Sofia, Bulgaria
| | - Alexander Zlatkov
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University-Sofia, 1000 Sofia, Bulgaria
| | - Shaban Ahmad
- Department of Computer Science, Jamia Millia Islamia, New Delhi 110025, India
| | - Khalid Raza
- Department of Computer Science, Jamia Millia Islamia, New Delhi 110025, India
| | - Vasco Azevedo
- Departamento de Genetica, Ecologia e Evolucao, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Debmalya Barh
- Departamento de Genetica, Ecologia e Evolucao, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
- Institute of Integrative Omics and Applied Biotechnology (IIOAB), Nonakuri, Purba Medinipur 721172, India
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Pacureanu L, Bora A, Crisan L. New Insights on the Activity and Selectivity of MAO-B Inhibitors through In Silico Methods. Int J Mol Sci 2023; 24:ijms24119583. [PMID: 37298535 DOI: 10.3390/ijms24119583] [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: 05/01/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
To facilitate the identification of novel MAO-B inhibitors, we elaborated a consolidated computational approach, including a pharmacophoric atom-based 3D quantitative structure-activity relationship (QSAR) model, activity cliffs, fingerprint, and molecular docking analysis on a dataset of 126 molecules. An AAHR.2 hypothesis with two hydrogen bond acceptors (A), one hydrophobic (H), and one aromatic ring (R) supplied a statistically significant 3D QSAR model reflected by the parameters: R2 = 0.900 (training set); Q2 = 0.774 and Pearson's R = 0.884 (test set), stability s = 0.736. Hydrophobic and electron-withdrawing fields portrayed the relationships between structural characteristics and inhibitory activity. The quinolin-2-one scaffold has a key role in selectivity towards MAO-B with an AUC of 0.962, as retrieved by ECFP4 analysis. Two activity cliffs showing meaningful potency variation in the MAO-B chemical space were observed. The docking study revealed interactions with crucial residues TYR:435, TYR:326, CYS:172, and GLN:206 responsible for MAO-B activity. Molecular docking is in consensus with and complementary to pharmacophoric 3D QSAR, ECFP4, and MM-GBSA analysis. The computational scenario provided here will assist chemists in quickly designing and predicting new potent and selective candidates as MAO-B inhibitors for MAO-B-driven diseases. This approach can also be used to identify MAO-B inhibitors from other libraries or screen top molecules for other targets involved in suitable diseases.
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Affiliation(s)
- Liliana Pacureanu
- "Coriolan Dragulescu" Institute of Chemistry, 24 Mihai Viteazu Ave., 300223 Timisoara, Romania
| | - Alina Bora
- "Coriolan Dragulescu" Institute of Chemistry, 24 Mihai Viteazu Ave., 300223 Timisoara, Romania
| | - Luminita Crisan
- "Coriolan Dragulescu" Institute of Chemistry, 24 Mihai Viteazu Ave., 300223 Timisoara, Romania
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Lazinski LM, Royal G, Robin M, Maresca M, Haudecoeur R. Bioactive Aurones, Indanones, and Other Hemiindigoid Scaffolds: Medicinal Chemistry and Photopharmacology Perspectives. J Med Chem 2022; 65:12594-12625. [PMID: 36126323 DOI: 10.1021/acs.jmedchem.2c01150] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hemiindigoids comprise a range of natural and synthetic scaffolds that share the same aromatic hydrocarbon backbone as well as promising biological and optical properties. The encouraging therapeutic potential of these scaffolds has been unraveled by many studies over the past years and uncovered representants with inspiring pharmacophoric features such as the acetylcholinesterase inhibitor donezepil and the tubulin polymerization inhibitor indanocine. In this review, we summarize the last advances in the medicinal potential of hemiindigoids, with a special attention to molecular design, structure-activity relationship, ligand-target interactions, and mechanistic explanations covering their effects. As their strong fluorogenic potential and photoswitch behavior recently started to be highlighted and explored in biology, giving rise to the development of novel fluorescent probes and photopharmacological agents, we also discuss these properties in a medicinal chemistry perspective.
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Affiliation(s)
- Leticia M Lazinski
- Université Grenoble Alpes, CNRS 5063, DPM, 38000 Grenoble, France.,Université Grenoble Alpes, CNRS 5250, DCM, 38000 Grenoble, France
| | - Guy Royal
- Université Grenoble Alpes, CNRS 5250, DCM, 38000 Grenoble, France
| | - Maxime Robin
- Mediterranean Institute of Marine and Terrestrial Biodiversity and Ecology (IMBE), Aix Marseille Université, 27 Boulevard Jean Moulin, 13385 Marseille, France
| | - Marc Maresca
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, 13397 Marseille, France
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Paolino M, Rullo M, Maramai S, de Candia M, Pisani L, Catto M, Mugnaini C, Brizzi A, Cappelli A, Olivucci M, Corelli F, Altomare CD. Design, synthesis and biological evaluation of light-driven on-off multitarget AChE and MAO-B inhibitors. RSC Med Chem 2022; 13:873-883. [PMID: 35923722 PMCID: PMC9298480 DOI: 10.1039/d2md00042c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/19/2022] [Indexed: 08/13/2023] Open
Abstract
Neurodegenerative diseases are multifactorial disorders characterized by protein misfolding, oxidative stress, and neuroinflammation, finally resulting in neuronal loss and cognitive dysfunctions. Nowadays, an attractive strategy to improve the classical treatments is the development of multitarget-directed molecules able to synergistically interact with different enzymes and/or receptors. In addition, an interesting tool to refine personalized therapies may arise from the use of bioactive species able to modify their activity as a result of light irradiation. To this aim, we designed and synthesized a small library of cinnamic acid-inspired isomeric compounds with light modulated activity able to inhibit acetylcholinesterase (AChE) and monoamine oxidase B (MAO-B), with remarkable selectivity over butyrylcholinesterase (BChE) and MAO-A, which have been investigated as the enzyme targets related to Alzheimer's disease (AD). The inhibitory activities were evaluated for the pure E-diastereomers and the E/Z-diastereomer mixtures, obtained upon UV irradiation. Molecular docking studies were carried out to rationalize the differences in the inhibition potency of the E and Z diastereomers of the best performing analogue 1c. Our preliminary findings may open-up the way for developing innovative multitarget photo-switch drugs against neurodegenerative diseases.
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Affiliation(s)
- Marco Paolino
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Mariagrazia Rullo
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro Via E. Orabona 4 70125 Bari Italy
| | - Samuele Maramai
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Modesto de Candia
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro Via E. Orabona 4 70125 Bari Italy
| | - Leonardo Pisani
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro Via E. Orabona 4 70125 Bari Italy
| | - Marco Catto
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro Via E. Orabona 4 70125 Bari Italy
| | - Claudia Mugnaini
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Antonella Brizzi
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Andrea Cappelli
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Massimo Olivucci
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
- Chemistry Department, Bowling Green State University USA
| | - Federico Corelli
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Cosimo D Altomare
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro Via E. Orabona 4 70125 Bari Italy
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Guglielmi P, Carradori S, D'Agostino I, Campestre C, Petzer JP. An updated patent review on monoamine oxidase (MAO) inhibitors. Expert Opin Ther Pat 2022; 32:849-883. [PMID: 35638744 DOI: 10.1080/13543776.2022.2083501] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION : Monoamine oxidase (MAO) inhibitors are currently used as antidepressants (selective MAO-A inhibitors) or as co-adjuvants for neurodegenerative diseases (selective MAO-B inhibitors). The research within this field is attracting attention due to their crucial role in the modulation of brain functions, mood and cognitive activity, and monoamine catabolism. AREAS COVERED MAO inhibitors (2018-2021) are discussed according to their chemotypes. Structure-activity relationships are derived for each chemical scaffold (propargylamines, chalcones, indoles, benzimidazoles, (iso)coumarins, (iso)benzofurans, xanthones, and tetralones), while the chemical entities were divided into newly synthesized molecules and natural metabolites. The mechanism of action and type of inhibition are also considered. Lastly, new therapeutic applications are reported, which demonstrates the clinical potential of these inhibitors as well as the possibility of repurposing existing drugs for a variety of diseases. EXPERT OPINION MAO inhibitors here reported exhibit different potencies (from the micro- to nanomolar range) and isoform selectivity. These compounds are clinically licensed for multi-faceted neurodegenerative pathologies due to their ability to also act against other relevant targets (cholinesterases, inflammation, and oxidative stress). Moreover, the drug repurposing approach is an attractive strategy by which MAO inhibitors may be applied for the treatment of prostate cancer, inflammation, vertigo, and type 1 diabetes.
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Affiliation(s)
- Paolo Guglielmi
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Rome, Italy
| | - Simone Carradori
- Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Ilaria D'Agostino
- Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Cristina Campestre
- Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Jacobus P Petzer
- Pharmaceutical Chemistry and Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa
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Exploring the structure-activity relationship of benzylidene-2,3-dihydro-1H-inden-1-one compared to benzofuran-3(2H)-one derivatives as inhibitors of tau amyloid fibers. Eur J Med Chem 2022; 231:114139. [DOI: 10.1016/j.ejmech.2022.114139] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 01/11/2022] [Accepted: 01/15/2022] [Indexed: 12/27/2022]
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Microwave prompted solvent-free synthesis of new series of heterocyclic tagged 7-arylidene indanone hybrids and their computational, antifungal, antioxidant, and cytotoxicity study. Bioorg Chem 2021; 115:105259. [PMID: 34426144 DOI: 10.1016/j.bioorg.2021.105259] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 07/25/2021] [Accepted: 08/06/2021] [Indexed: 12/23/2022]
Abstract
In this study, we report the expeditious synthesis of ten new antifungal and antioxidant agents containing heterocyclic linked 7-arylidene indanone moiety. The solvent-free microwave technique, ample substrate scope, superfast synthesis, and very simple operation are noteworthy features of this protocol. Antifungal activities of the newly synthesized compounds were evaluated against four fungal strains namely Rhizophus oryzae, Mucor mucido, Aspergillus niger, and Candida albicans. Most of the compounds were shown strong inhibition of the investigated fungal agents. In vitro, antioxidant potential against DPPH and OH radicals affirmed that the synthesized compounds are good to excellent radicals scavenging agents. The cytotoxicity data of the synthesized compounds towards HL-60 cells uncovered that the synthesized compounds display very low to negligible cytotoxicity. The structural and quantum chemical parameters of the synthesized compounds were explored by employing density functional theory (DFT) at B3LYP functional using 6-311G(d,p) basis set. The compound 3a is discussed in detail for the theoretical and experimental correlation. Time-dependent density functional theory (TD-DFT) at CAM-B3LYP functional with 6-311G(d,p) basis set was used for the electronic absorption study in the gas phase and indichloromethane and benzene solvents. The UV-Visible absorption peaks and fundamental vibrational wavenumbers were computed and a good agreement between observed and theoretical results has been achieved. From the DFT and antifungal activity correlation, it has been found that the 7-heteroarylidene indanones with more stabilized LUMO energy levels display good antifungal potential.
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de Beer AD, Legoabe LJ, Petzer A, Petzer JP. The inhibition of catechol O-methyltransferase and monoamine oxidase by tetralone and indanone derivatives substituted with the nitrocatechol moiety. Bioorg Chem 2021; 114:105130. [PMID: 34225162 DOI: 10.1016/j.bioorg.2021.105130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 12/30/2022]
Abstract
The enzymes, catechol O-methyltransferase (COMT) and monoamine oxidase (MAO) are important drug targets, and inhibitors of these enzymes are established therapy for symptomatic Parkinson's disease (PD). COMT inhibitors enhance the bioavailability of levodopa to the brain, and therefore are combined with levodopa for the treatment of motor fluctuations in PD. Inhibitors of the MAO-B isoform, in turn, are used as monotherapy or in conjunction with levodopa in PD, and function by reducing the central degradation of dopamine. It has been reported that 1-tetralone and 1-indanone derivatives are potent and specific inhibitors of MAO-B, while compounds containing the nitrocatechol moiety (e.g. tolcapone and entacapone) are often potent COMT inhibitors. The present study attempted to discover compounds that exhibit dual COMT and MAO-B inhibition by synthesizing series of 1-tetralone, 1-indanone and related derivatives substituted with the nitrocatechol moiety. These compounds are structurally related to series of nitrocatechol derivatives of chalcone that have recently been investigated as potential dual COMT/MAO inhibitors. The results show that 4-chromanone derivative (7) is the most promising dual inhibitor with IC50 values of 0.57 and 7.26 μM for COMT and MAO-B, respectively, followed by 1-tetralone derivative (4d) with IC50 values of 0.42 and 7.83 μM for COMT and MAO-B, respectively. Based on their potent inhibition of COMT, it may be concluded that nitrocatechol compounds investigated in this study are appropriate for peripheral COMT inhibition, which represents an important strategy in the treatment of PD.
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Affiliation(s)
- Andries D de Beer
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom 2520, South Africa
| | - Lesetja J Legoabe
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom 2520, South Africa.
| | - Anél Petzer
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom 2520, South Africa; Pharmaceutical Chemistry, School of Pharmacy, North-West University, Potchefstroom 2520, South Africa.
| | - Jacobus P Petzer
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom 2520, South Africa; Pharmaceutical Chemistry, School of Pharmacy, North-West University, Potchefstroom 2520, South Africa.
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12
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Kumar P, Shirke RP, Yadav S, Ramasastry SSV. Catalytic Enantioselective Synthesis of Axially Chiral Diarylmethylidene Indanones. Org Lett 2021; 23:4909-4914. [PMID: 34100619 DOI: 10.1021/acs.orglett.1c01671] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We describe the first atropselective Suzuki-Miyaura cross-coupling of β-keto enol triflates to access axially chiral (Z)-diarylmethylidene indanones (DAIs). The chemical, physical, and biological properties of DAIs are unknown, despite their being structurally similar to arylidene indanones, primarily due to the lack of racemic or chiral methods. Through this work, we demonstrate a general and efficient protocol for the racemic as well as the atropselective synthesis of (Z)-DAIs. An unusual intramolecular Morita-Baylis-Hillman reaction is utilized for the Z-selective synthesis of β-keto enol triflates.
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Affiliation(s)
- Prashant Kumar
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
| | - Rajendra P Shirke
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
| | - Sonu Yadav
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
| | - S S V Ramasastry
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
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13
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Adole VA, Waghchaure RH, Pathade SS, Patil MR, Pawar TB, Jagdale BS. Solvent-free grindstone synthesis of four new (E)-7-(arylidene)-indanones and their structural, spectroscopic and quantum chemical study: a comprehensive theoretical and experimental exploration. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1800690] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Vishnu A. Adole
- Department of Chemistry, Loknete Vyankatrao Hiray Arts, Science and Commerce College Panchavati (Affiliated to SP Pune University, Pune), Nashik, India
- Department of Chemistry, Arts, Science and Commerce College (Affiliated to SP Pune University, Pune), Manmad, Nashik, India
| | - Ravindra H. Waghchaure
- Department of Chemistry, Loknete Vyankatrao Hiray Arts, Science and Commerce College Panchavati (Affiliated to SP Pune University, Pune), Nashik, India
- Department of Chemistry, Arts, Commerce and Science College Karanjali (Affiliated to SP Pune University, Pune), Nashik, India
| | - Sandip S. Pathade
- Department of Chemistry, Loknete Vyankatrao Hiray Arts, Science and Commerce College Panchavati (Affiliated to SP Pune University, Pune), Nashik, India
- Department of Chemistry, Maharaja Sayajirao Gaikwad Arts, Science and Commerce College Malegaon (Affiliated to SP Pune University, Pune), Nashik, India
| | - Manohar R. Patil
- Department of Chemistry, G. T. Patil Arts, Commerce and Science College (Affiliated to KBC NM University, Jalgaon), Nandurbar, India
| | - Thansing B. Pawar
- Department of Chemistry, Loknete Vyankatrao Hiray Arts, Science and Commerce College Panchavati (Affiliated to SP Pune University, Pune), Nashik, India
| | - Bapu S. Jagdale
- Department of Chemistry, Loknete Vyankatrao Hiray Arts, Science and Commerce College Panchavati (Affiliated to SP Pune University, Pune), Nashik, India
- Department of Chemistry, Arts, Science and Commerce College (Affiliated to SP Pune University, Pune), Manmad, Nashik, India
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14
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Chalcones: Unearthing their therapeutic possibility as monoamine oxidase B inhibitors. Eur J Med Chem 2020; 205:112650. [PMID: 32920430 DOI: 10.1016/j.ejmech.2020.112650] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/07/2020] [Accepted: 07/07/2020] [Indexed: 02/06/2023]
Abstract
In the last years the continuous efforts in the development of novel and effective inhibitors of human monoamine oxidases (hMAOs) promoted the discovery of new agents able to effectively and selectively bound one of the two isoforms (hMAO-A and hMAO-B). However, the parent chalcone scaffold still covers an important role in hMAOs inhibition. In the present work, we focused our attention on the researches performed in the last five years, involving chalcones or compounds that can be correlated to them. We classified the chalcones into different groups depending on their structural characteristics or common molecular properties. In this regard, we also considered chalcones based on heterocycles and compounds endowed with scaffolds containing a masked chalcone motif. When structural attributes could not be used, we took advantage of enzymatic activity to arrange compounds in a group. We followed this approach for the multitarget agents. Finally, we also analysed the naturally occurring chalcones. All the sections were discussed exhaustively and the structure-activity relationship (SAR) analyses were sustained by means of detailed images describing the effects related to the substituents or structural changes.
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15
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Adole VA, Jagdale BS, Pawar TB, Sawant AB. Experimental and theoretical exploration on single crystal, structural, and quantum chemical parameters of (
E
)‐7‐(arylidene)‐1,2,6,
7‐tetrahydro‐8
H
‐indeno[5,4‐
b
]furan‐8‐one derivatives: A comparative study. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Vishnu A. Adole
- Department of Chemistry Mahatma Gandhi Vidyamandir's Loknete Vyankatrao Hiray Arts, Science and Commerce College Panchavati (Affiliated to SP Pune University, Pune) Nashik India
- Department of Chemistry Mahatma Gandhi Vidyamandir's Arts, Science and Commerce College (Affiliated to SP Pune University, Pune) Manmad India
| | - Bapu S. Jagdale
- Department of Chemistry Mahatma Gandhi Vidyamandir's Loknete Vyankatrao Hiray Arts, Science and Commerce College Panchavati (Affiliated to SP Pune University, Pune) Nashik India
- Department of Chemistry Mahatma Gandhi Vidyamandir's Arts, Science and Commerce College (Affiliated to SP Pune University, Pune) Manmad India
| | - Thansing B. Pawar
- Department of Chemistry Mahatma Gandhi Vidyamandir's Loknete Vyankatrao Hiray Arts, Science and Commerce College Panchavati (Affiliated to SP Pune University, Pune) Nashik India
| | - Arun B. Sawant
- Department of Chemistry Maharaja Sayajirao Gaikwad Arts, Science and Commerce College (Affiliated to SP Pune University, Pune) Malegaon Camp India
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16
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Guglielmi P, Secci D, Petzer A, Bagetta D, Chimenti P, Rotondi G, Ferrante C, Recinella L, Leone S, Alcaro S, Zengin G, Petzer JP, Ortuso F, Carradori S. Benzo[ b]tiophen-3-ol derivatives as effective inhibitors of human monoamine oxidase: design, synthesis, and biological activity. J Enzyme Inhib Med Chem 2019; 34:1511-1525. [PMID: 31422706 PMCID: PMC6713090 DOI: 10.1080/14756366.2019.1653864] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
A series of benzo[b]thiophen-3-ols were synthesised and investigated as potential human monoamine oxidase (hMAO) inhibitors in vitro as well as ex vivo in rat cortex synaptosomes by means of evaluation of 3,4-dihydroxyphenylacetic acid/dopamine (DOPAC/DA) ratio and lactate dehydrogenase (LDH) activity. Most of these compounds possessed high selectivity for the MAO-B isoform and a discrete antioxidant and chelating potential. Molecular docking studies of all the compounds underscored potential binding site interactions suitable for MAO inhibition activity, and suggested structural requirements to further improve the activity of this scaffold by chemical modification of the aryl substituents. Starting from this heterocyclic nucleus, novel lead compounds for the treatment of neurodegenerative disease could be developed.
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Affiliation(s)
- Paolo Guglielmi
- a Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome , Rome , Italy
| | - Daniela Secci
- a Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome , Rome , Italy
| | - Anél Petzer
- b Pharmaceutical Chemistry, School of Pharmacy, Centre of Excellence for Pharmaceutical Sciences, North-West University , Potchefstroom , South Africa
| | - Donatella Bagetta
- c Dipartimento di Scienze della Salute, "Magna Graecia" University of Catanzaro, Campus Universitario "S. Venuta", Viale Europa Loc. Germaneto , Catanzaro , Italy.,d Net4Science Academic Spin-Off, Campus Universitario "S. Venuta", Viale Europa Loc. Germaneto, "Magna Graecia" University of Catanzaro , Catanzaro , Italy
| | - Paola Chimenti
- a Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome , Rome , Italy
| | - Giulia Rotondi
- a Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome , Rome , Italy
| | - Claudio Ferrante
- e Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara , Chieti , Italy
| | - Lucia Recinella
- e Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara , Chieti , Italy
| | - Sheila Leone
- e Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara , Chieti , Italy
| | - Stefano Alcaro
- c Dipartimento di Scienze della Salute, "Magna Graecia" University of Catanzaro, Campus Universitario "S. Venuta", Viale Europa Loc. Germaneto , Catanzaro , Italy.,d Net4Science Academic Spin-Off, Campus Universitario "S. Venuta", Viale Europa Loc. Germaneto, "Magna Graecia" University of Catanzaro , Catanzaro , Italy
| | - Gokhan Zengin
- f Department of Biology, Science Faculty, Selcuk University , Konya , Turkey
| | - Jacobus P Petzer
- b Pharmaceutical Chemistry, School of Pharmacy, Centre of Excellence for Pharmaceutical Sciences, North-West University , Potchefstroom , South Africa
| | - Francesco Ortuso
- c Dipartimento di Scienze della Salute, "Magna Graecia" University of Catanzaro, Campus Universitario "S. Venuta", Viale Europa Loc. Germaneto , Catanzaro , Italy.,d Net4Science Academic Spin-Off, Campus Universitario "S. Venuta", Viale Europa Loc. Germaneto, "Magna Graecia" University of Catanzaro , Catanzaro , Italy
| | - Simone Carradori
- e Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara , Chieti , Italy
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17
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Bakhshi R, Zeynizadeh B, Mousavi H. Green, rapid, and highly efficient syntheses of
α
,
α′
‐bis[(aryl or allyl)idene]cycloalkanones and 2‐[(aryl or allyl)idene]‐1‐indanones as potentially biologic compounds via solvent‐free microwave‐assisted Claisen–Schmidt condensation catalyzed by MoCl
5. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201900081] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Reza Bakhshi
- Department of Organic Chemistry, Faculty of ChemistryUrmia University Urmia Iran
| | - Behzad Zeynizadeh
- Department of Organic Chemistry, Faculty of ChemistryUrmia University Urmia Iran
| | - Hossein Mousavi
- Department of Organic Chemistry, Faculty of ChemistryUrmia University Urmia Iran
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18
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Jung HJ, Noh SG, Park Y, Kang D, Chun P, Chung HY, Moon HR. In vitro and in silico insights into tyrosinase inhibitors with ( E)-benzylidene-1-indanone derivatives. Comput Struct Biotechnol J 2019; 17:1255-1264. [PMID: 31921392 PMCID: PMC6944710 DOI: 10.1016/j.csbj.2019.07.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/26/2019] [Accepted: 07/27/2019] [Indexed: 12/14/2022] Open
Abstract
Tyrosinase is a key enzyme responsible for melanin biosynthesis and is effective in protecting skin damage caused by ultraviolet radiation. As part of ongoing efforts to discover potent tyrosinase inhibitors, we systematically designed and synthesized thirteen (E)-benzylidene-1-indanone derivatives (BID1–13) and determined their inhibitory activities against tyrosinase. Among the compounds evaluated, BID3 was the most potent inhibitor of mushroom tyrosinase (IC50 = 0.034 µM, monophenolase activity; IC50 = 1.39 µM, diphenolase activity). Kinetic studies revealed that BID3 demonstrated a mixed type of tyrosinase inhibition with Ki value of 2.4 µM using l-DOPA as a substrate. In silico molecular docking simulations demonstrated that BID3 can bind to the catalytic and allosteric sites of tyrosinase to inhibit enzyme activity which confirmed in vitro experimental studies between BID3 and tyrosinase. Furthermore, melanin contents decreased and cellular tyrosinase activity was inhibited after BID3 treatment. These observations revealed that BID3 is a potent tyrosinase inhibitor and potentially could be used as a whitening agent for the treatment of pigmentation-related disorders.
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Affiliation(s)
- Hee Jin Jung
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea.,Longevity Life Science and Technology Institutes, Pusan National University, Busan 46241, Republic of Korea.,Aging Tissue Bank, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Sang Gyun Noh
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea.,Longevity Life Science and Technology Institutes, Pusan National University, Busan 46241, Republic of Korea.,Aging Tissue Bank, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Yujin Park
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Dongwan Kang
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Pusoon Chun
- College of Pharmacy, Inje University, Gimhae 47392, Republic of Korea
| | - Hae Young Chung
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea.,Longevity Life Science and Technology Institutes, Pusan National University, Busan 46241, Republic of Korea.,Aging Tissue Bank, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Hyung Ryong Moon
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
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19
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Adole VA, Pawar TB, Jagdale BS. Aqua‐mediated rapid and benign synthesis of 1,2,6,7‐tetrahydro‐8H‐indeno[5,4‐b]furan‐8‐one‐appended novel 2‐arylidene indanones of pharmacological interest at ambient temperature. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201900015] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Vishnu A. Adole
- Research Centre in ChemistryLoknete Vyankatrao Hiray Arts, Science and Commerce College Nashik India
| | - Thansing B. Pawar
- Research Centre in ChemistryLoknete Vyankatrao Hiray Arts, Science and Commerce College Nashik India
| | - Bapu S. Jagdale
- Research Centre in ChemistryLoknete Vyankatrao Hiray Arts, Science and Commerce College Nashik India
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20
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Takao K, U S, Kamauchi H, Sugita Y. Design, synthesis and evaluation of 2-(indolylmethylidene)-2,3-dihydro-1-benzofuran-3-one and 2-(indolyl)-4H-chromen-4-one derivatives as novel monoamine oxidases inhibitors. Bioorg Chem 2019; 87:594-600. [DOI: 10.1016/j.bioorg.2019.03.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/09/2019] [Accepted: 03/15/2019] [Indexed: 12/18/2022]
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21
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Janse van Rensburg HD, Legoabe LJ, Terre'Blanche G, Van der Walt MM. Methoxy substituted 2-benzylidene-1-indanone derivatives as A 1 and/or A 2A AR antagonists for the potential treatment of neurological conditions. MEDCHEMCOMM 2019; 10:300-309. [PMID: 30881617 DOI: 10.1039/c8md00540k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 01/06/2019] [Indexed: 12/19/2022]
Abstract
A prior study reported on hydroxy substituted 2-benzylidene-1-indanone derivatives as A1 and/or A2A antagonists for the potential treatment of neurological conditions. A lead compound (1a) was identified with both A1 and A2A affinity in the micromolar range. The current study explored the structurally related methoxy substituted 2-benzylidene-1-indanone derivatives with various substitutions on ring A and B of the benzylidene indanone scaffold in order to enhance A1 and A2A affinity. This led to compounds with both A1 and A2A affinity in the nanomolar range, namely 2c (A1 K i (rat) = 41 nM; A2A K i (rat) = 97 nM) with C4-OCH3 substitution on ring A together with meta (3') hydroxy substitution on ring B and 2e (A1 K i (rat) = 42 nM; A2A K i (rat) = 78 nM) with C4-OCH3 substitution on ring A together with meta (3') and para (4') dihydroxy substitution on ring B. Additionally, 2c is an A1 antagonist. Consequently, the methoxy substituted 2-benzylidene-1-indanone scaffold is highly promising for the design of novel A1 and A2A antagonists.
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Affiliation(s)
- Helena D Janse van Rensburg
- Pharmaceutical Chemistry , School of Pharmacy , North-West University , Private Bag X6001 , Potchefstroom , 2520 , South Africa
| | - Lesetja J Legoabe
- Centre of Excellence for Pharmaceutical Sciences , School of Pharmacy , North-West University , Private Bag X6001 , Potchefstroom , 2520 , South Africa .
| | - Gisella Terre'Blanche
- Pharmaceutical Chemistry , School of Pharmacy , North-West University , Private Bag X6001 , Potchefstroom , 2520 , South Africa.,Centre of Excellence for Pharmaceutical Sciences , School of Pharmacy , North-West University , Private Bag X6001 , Potchefstroom , 2520 , South Africa .
| | - Mietha M Van der Walt
- Centre of Excellence for Pharmaceutical Sciences , School of Pharmacy , North-West University , Private Bag X6001 , Potchefstroom , 2520 , South Africa .
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22
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Tripathi RKP, Ayyannan SR. Monoamine oxidase-B inhibitors as potential neurotherapeutic agents: An overview and update. Med Res Rev 2019; 39:1603-1706. [PMID: 30604512 DOI: 10.1002/med.21561] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 12/13/2018] [Accepted: 12/15/2018] [Indexed: 12/23/2022]
Abstract
Monoamine oxidase (MAO) inhibitors have made significant contributions and remain an indispensable approach of molecular and mechanistic diversity for the discovery of antineurodegenerative drugs. However, their usage has been hampered by nonselective and/or irreversible action which resulted in drawbacks like liver toxicity, cheese effect, and so forth. Hence, the search for selective MAO inhibitors (MAOIs) has become a substantial focus in current drug discovery. This review summarizes our current understanding on MAO-A/MAO-B including their structure, catalytic mechanism, and biological functions with emphases on the role of MAO-B as a potential therapeutic target for the development of medications treating neurodegenerative disorders. It also highlights the recent developments in the discovery of potential MAO-B inhibitors (MAO-BIs) belonging to diverse chemical scaffolds, arising from intensive chemical-mechanistic and computational studies documented during past 3 years (2015-2018), with emphases on their potency and selectivity. Importantly, readers will gain knowledge of various newly established MAO-BI scaffolds and their development potentials. The comprehensive information provided herein will hopefully accelerate ideas for designing novel selective MAO-BIs with superior activity profiles and critical discussions will inflict more caution in the decision-making process in the MAOIs discovery.
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Affiliation(s)
- Rati Kailash Prasad Tripathi
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology, Banaras Hindu University, Varanasi, India.,Department of Pharmaceutical Chemistry, Parul Institute of Pharmacy, Parul University, Vadodara, India
| | - Senthil Raja Ayyannan
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
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23
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Teske J, Plietker B. Fe-Catalyzed Cycloisomerization of Aryl Allenyl Ketones: Access to 3-Arylidene-indan-1-ones. Org Lett 2018; 20:2257-2260. [DOI: 10.1021/acs.orglett.8b00612] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Johannes Teske
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, DE-70569 Stuttgart, Germany
| | - Bernd Plietker
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, DE-70569 Stuttgart, Germany
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24
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Novel indanone derivatives as MAO B/H 3R dual-targeting ligands for treatment of Parkinson's disease. Eur J Med Chem 2018; 148:487-497. [PMID: 29477889 DOI: 10.1016/j.ejmech.2018.02.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 11/24/2022]
Abstract
The design of multi-targeting ligands was developed in the last decades as an innovative therapeutic concept for Parkinson's disease (PD) and other neurodegenerative disorders. As the monoamine oxidase B (MAO B) and the histamine H3 receptor (H3R) are promising targets for dopaminergic regulation, we synthetized dual-targeting ligands (DTLs) as non-dopaminergic receptor approach for the treatment of PD. Three series of compounds were developed by attaching the H3R pharmacophore to indanone-related MAO B motifs, leading to development of MAO B/H3R DTLs. Among synthesized indanone DTLs, compounds bearing the 2-benzylidene-1-indanone core structure showed MAO B preferring inhibition capabilities along with nanomolar hH3R affinity. Substitution of C5 and C6 position of the 2-benzylidene-1-indanones with lipophilic substituents revealed three promising candidates exhibiting inhibitory potencies for MAO B with IC50 values ranging from 1931 nM to 276 nM and high affinities at hH3R (Ki < 50 nM). Compound 3f ((E)-5-((4-bromobenzyl)oxy)-2-(4-(3-(piperidin-1-yl)propoxy)benzylidene)-2,3-dihydro-1H-inden-1-one, MAO B IC50 = 276 nM, hH3R Ki = 6.5 nM) showed highest preference for MAO B over MAO A (SI > 36). Interestingly, IC50 determinations after preincubation of enzyme and DTLs revealed also nanomolar MAO B potency for 3e (MAO B IC50 = 232 nM), a structural isomer of 3f, and 3d (MAO B IC50 = 541 nM), suggesting time-dependent inhibition modes. Reversibility of inhibition for all three compounds were confirmed by dilution studies in excess of substrate. Thus, indanone-substituted derivatives are promising lead structures for the design of MAO B/hH3R DTLs as novel therapeutic approach of PD therapy.
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25
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Legoabe LJ, Van der Walt MM, Terre'Blanche G. Evaluation of 2-benzylidene-1-tetralone derivatives as antagonists of A 1 and A 2A adenosine receptors. Chem Biol Drug Des 2017; 91:234-244. [PMID: 28734058 DOI: 10.1111/cbdd.13074] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 01/11/2017] [Accepted: 07/08/2017] [Indexed: 11/29/2022]
Abstract
Antagonists of the adenosine receptors (A1 and A2A ) are thought to be beneficial in neurological disorders, such as Alzheimer's and Parkinson's disease. The aim of this study was to explore 2-benzylidene-1-tetralone derivatives as antagonists of A1 and/or A2A adenosine receptors. In general, the test compounds were found to be selective for the A1 adenosine receptor, with only three test compounds possessing affinity for both the A1 and A2A adenosine receptor. The 2-benzylidene-1-tetralones bearing a hydroxyl substituent at either position C5, C6 or C7 of ring A displayed favourable adenosine A1 receptor binding, while C5 hydroxy substitution led to favourable A2A adenosine receptor affinity. Interestingly, para-hydroxy substitution on ring B in combination with ring A bearing a hydroxy at position C6 or C7 provided the 2-benzylidene-1-tetralones with both A1 and A2A adenosine receptor affinity. Compounds 4 and 8 displayed the highest A1 and A2A adenosine receptor affinity with values below 7 μm. Both these compounds behaved as A1 adenosine receptor antagonists in the performed GTP shift assays. In conclusion, the 2-benzylidene-1-tetralone derivatives can be considered as lead compounds to design a new class of dual acting adenosine A1 /A2A receptor antagonists that may have potential in treating both dementia and locomotor deficits in Parkinson's disease.
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Affiliation(s)
- Lesetja J Legoabe
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa
| | - Mietha M Van der Walt
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa
| | - Gisella Terre'Blanche
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa.,Pharmaceutical Chemistry, School of Pharmacy, North-West University, Potchefstroom, South Africa
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26
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Nam MH, Park M, Park H, Kim Y, Yoon S, Sawant VS, Choi JW, Park JH, Park KD, Min SJ, Lee CJ, Choo H. Indole-Substituted Benzothiazoles and Benzoxazoles as Selective and Reversible MAO-B Inhibitors for Treatment of Parkinson's Disease. ACS Chem Neurosci 2017; 8:1519-1529. [PMID: 28332824 DOI: 10.1021/acschemneuro.7b00050] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
To develop novel, selective, and reversible MAO-B inhibitors for safer treatment of Parkinson's disease, benzothiazole and benzoxazole derivatives with indole moiety were designed and synthesized. Most of the synthesized compounds showed inhibitory activities against MAO-B and selectivity over MAO-A. The most active compound was compound 5b, 6-fluoro-2-(1-methyl-1H-indol-5-yl)benzo[d]thiazole with an IC50 value of 28 nM with no apparent effect on MAO-A activity at 10 μM. Based on the reversibility assay, compound 5b turned out to be fully reversible with over 95% of recovery of enzyme activity after washout of the compound. Compound 5b showed a reasonable stability in human liver microsomes and did not affect the activities of CYP isozymes, suggesting an absence of high-risk drug-drug interaction. In an in vivo MPTP-induced animal model of Parkinson's disease, oral administration of compound 5b showed neuroprotection of nigrostriatal dopaminergic neurons as revealed by tyrosine hydroxylase staining and prevention of MPTP-induced parkinsonism as revealed by motor behavioral assay of vertical grid test. In summary, the novel, reversible, and selective MAO-B inhibitor compound 5b was synthesized and characterized. We propose compound 5b as an effective therapeutic compound for relieving parkinsonism.
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Affiliation(s)
- Min-Ho Nam
- Center for Neuroscience, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Science in
Korean Medicine, Graduate School, Kyung Hee University, Kyungheedaero
26, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Moosung Park
- Center for
Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Biological
Chemistry, Korea University of Science and Technology, Youseong-gu, Daejeon 34113, Korea
| | - Hyeri Park
- Center for
Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Youngjae Kim
- Center for
Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department
of Chemistry, Yonsei University, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Seulki Yoon
- Center for
Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Biological
Chemistry, Korea University of Science and Technology, Youseong-gu, Daejeon 34113, Korea
| | - Vikram Shahaji Sawant
- Center for
Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Biological
Chemistry, Korea University of Science and Technology, Youseong-gu, Daejeon 34113, Korea
| | - Ji Won Choi
- Center for
Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Biotechnology, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
| | - Jong-Hyun Park
- Center for
Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Ki Duk Park
- Center for
Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Biological
Chemistry, Korea University of Science and Technology, Youseong-gu, Daejeon 34113, Korea
| | - Sun-Joon Min
- Department of Applied
Chemistry, Hanyang University, Ansan, Gyeonggi-du 15588, Korea, and
| | - C. Justin Lee
- Center for Neuroscience, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
- KU-KIST
School of Converging Science and Technology, Korea University, Seoul 02841, Korea
| | - Hyunah Choo
- Center for
Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Biological
Chemistry, Korea University of Science and Technology, Youseong-gu, Daejeon 34113, Korea
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Menezes JCJMDS. Arylidene indanone scaffold: medicinal chemistry and structure–activity relationship view. RSC Adv 2017. [DOI: 10.1039/c6ra28613e] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Arylidene indanone (AI) scaffolds are considered as the rigid cousins of chalcones, incorporating the α,β-unsaturated ketone system of chalcones forming a cyclic 5 membered ring.
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