1
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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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2
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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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3
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In vitro and in silico investigation of inhibitory activities of 3-arylcoumarins and 3-phenylazo-4-hydroxycoumarin on MAO isoenzymes. Struct Chem 2022. [DOI: 10.1007/s11224-022-02092-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Synthesis and human monoamine oxidase inhibitory activity of novel C2-, C3- and C4-substituted phthalonitriles. Bioorg Med Chem Lett 2022; 74:128917. [DOI: 10.1016/j.bmcl.2022.128917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/22/2022] [Accepted: 07/28/2022] [Indexed: 11/19/2022]
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5
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Lambertucci C, Marucci G, Catarzi D, Colotta V, Francucci B, Spinaci A, Varano F, Volpini R. A2A Adenosine Receptor Antagonists and their Potential in Neurological Disorders. Curr Med Chem 2022; 29:4780-4795. [PMID: 35184706 DOI: 10.2174/0929867329666220218094501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 12/11/2021] [Accepted: 12/18/2021] [Indexed: 11/22/2022]
Abstract
Endogenous nucleoside adenosine modulates a number of physiological effects through interaction with P1 purinergic receptors. All of them are G protein coupled receptors and, to date, four subtypes have been characterized and named A1, A2A, A2B, and A3. In recent years adenosine receptors, particularly the A2A subtype, have become attractive targets for the treatment of several neurodegenerative disorders, known to involve neuroinflammation, like Parkinson's and Alzheimer's diseases, multiple sclerosis and neuropsychiatric conditions. In fact, it has been demonstrated that inhibition of A2A adenosine receptors exerts neuroprotective effects counteracting neuroinflammatory processes and astroglial and microglial activation. The A2A adenosine receptor antagonist istradefylline, developed by Kyowa Hakko Kirin Inc., was approved in Japan as adjunctive therapy for the treatment of Parkinson's disease and very recently it was approved also by the US Food and Drug Administration. These findings pave the way for new therapeutic opportunities, so, in this review, a summary of the most relevant and promising A2A adenosine receptor antagonists will be presented along with their preclinical and clinical studies in neuroinflammation related diseases.
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Affiliation(s)
- Catia Lambertucci
- Medicinal Chemistry Unit, School of Pharmacy, University of Camerino, 62032 Camerino (MC), Italy
| | - Gabriella Marucci
- Medicinal Chemistry Unit, School of Pharmacy, University of Camerino, 62032 Camerino (MC), Italy
| | - Daniela Catarzi
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, 50019 Sesto Fiorentino (FI), Italy
| | - Vittoria Colotta
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, 50019 Sesto Fiorentino (FI), Italy
| | - Beatrice Francucci
- Medicinal Chemistry Unit, School of Pharmacy, University of Camerino, 62032 Camerino (MC), Italy
| | - Andrea Spinaci
- Medicinal Chemistry Unit, School of Pharmacy, University of Camerino, 62032 Camerino (MC), Italy
| | - Flavia Varano
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, 50019 Sesto Fiorentino (FI), Italy
| | - Rosaria Volpini
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, 50019 Sesto Fiorentino (FI), Italy
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6
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El-Halaby LO, El-Husseiny WM, El-Messery SM, Goda FE. Biphenylpiperazine Based MAO Inhibitors: Synthesis, Biological Evaluation, Reversibility and Molecular Modeling Studies. Bioorg Chem 2021; 115:105216. [PMID: 34352710 DOI: 10.1016/j.bioorg.2021.105216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 07/18/2021] [Accepted: 07/24/2021] [Indexed: 11/18/2022]
Abstract
In this study, 21 new 1,4-biphenylpiperazine derivatives were designed, synthesized and evaluated as monoamine oxidase (MAO) inhibitors by in vitro fluorometric method. All these compounds exhibited inhibitory activity against hMAO enzymes, 17 analogues of them showed selectivity towards hMAO-B over hMAO-A enzyme. Compound 20 exhibited the best activity and selectivity towards hMAO-B with IC50 value of 53 nM and selectivity index of 1122 folds over MAO-A, compared to the reference drugs rasagiline (IC50 = 66 nM) and selegiline (IC50 = 40 nM). Kinetic study and reversibility test of the most potent compound (20) revealed that it is reversible and mixed competitive inhibitor (Ki value is 17 nM for the inhibition of hMAO-B). Compound 20 was evaluated against normal NIH/3T3 mouse embryonic fibroblast cell lines and it was found that it is non-cytotoxic at its effective concentration against hMAO-B. Moreover, compound 20 and the most potent compounds have acceptable ADME properties and good pharmacokinetics profiles. Molecular docking simulations were performed for explanation and elucidation for the biological activity of compounds 19 and 20. Accordingly, 1,4- biphenylpiperazine derivatives can be considered as a promising lead to produce more potent and safer MAO inhibitors for management of various neurological disorders.
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Affiliation(s)
- Lamiaa O El-Halaby
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, P.O. Box 35516, Mansoura, Egypt
| | - Walaa M El-Husseiny
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, P.O. Box 35516, Mansoura, Egypt
| | - Shahenda M El-Messery
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, P.O. Box 35516, Mansoura, Egypt.
| | - Fatma E Goda
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, P.O. Box 35516, Mansoura, Egypt
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Petrucci R, Feroci M, Mattiello L, Chiarotto I. Xanthine Scaffold: Available Synthesis Routes to Deliver Diversity by Derivatization. MINI-REV ORG CHEM 2021. [DOI: 10.2174/1570193x17999200507103141] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The functionalization of the skeletal systems of heterocycles represents a significant goal
for the development of new compounds. The heterocyclic molecule xanthine (3,7-dihydro-1Hpurine-
2,6-dione) is a purine base with a bicyclic ring skeleton and four different nitrogen atoms,
three of them are -NH groups. The principal derivatives are the well known natural methylxanthines
(e.g., caffeine, theophylline and theobromine) that have prominent physiological effects at a very low
dose. The natural methylated xanthines, theophylline, theobromine and caffeine, are present in different
plants such as the tea, cocoa and coffee species. For this reason natural xanthines can be considered
as bio-based and renewable starting materials; their use in organic synthesis is strongly recommended
in order to carry out sustainable chemistry. Essentially, the xanthine scaffold led to the
preparation of numerous compounds very attractive in the pharmaceutical field, and these drugs are
commercialized for a wide range of biological activities. The scope of this mini-review is to consider
the use of natural xanthines as starting material in chemical transformations carried out in organic
solvents, without the intent to be exhaustive of all the synthetically chemical applications. More information
on the chemical and electrochemical reactivity of this structural core in an organic solvent
can be useful for the scientific community. The effectiveness of natural xanthines can be improved
by modifying the structures of these already biologically active compounds.
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Affiliation(s)
- Rita Petrucci
- Dept. Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, via del Castro Laurenziano, 7, 00161, Rome, Italy
| | - Marta Feroci
- Dept. Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, via del Castro Laurenziano, 7, 00161, Rome, Italy
| | - Leonardo Mattiello
- Dept. Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, via del Castro Laurenziano, 7, 00161, Rome, Italy
| | - Isabella Chiarotto
- Dept. Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, via del Castro Laurenziano, 7, 00161, Rome, Italy
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8
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Thiab S, Barakat M, Al-Qudah R, Abutaima R, Jamal R, Riby P. The perception of Jordanian population towards concomitant administration of food, beverages and herbs with drugs and their possible interactions: A cross-sectional study. Int J Clin Pract 2021; 75:e13780. [PMID: 33098614 DOI: 10.1111/ijcp.13780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Many people are used to administering their drugs with food, beverages or herbs. These substances may contain chemicals that interfere with the prescribed drugs and could potentially lead to changes in their efficacy or safety, and could result in alterations in their pharmacokinetic properties. OBJECTIVE To assess the extent of the perception and consumption of food, beverages and herbs alongside conventional drugs, along with their potential interactions, specifically in Jordanian society. METHODS A descriptive cross-sectional survey was conducted in Jordan (20 April - 5 May 2020). The survey was developed using Google Forms, then validated and distributed via social media platforms. Data were analysed using Statistical Package for Social Sciences-24. MAIN OUTCOME MEASURE Use and perception of food, beverages, herbs and how they interact with drugs among Jordanians. RESULTS Of all the participants (n = 789), 77.8% were females, 46.2% were 50-year-olds, 69.7% were married, 70.8% were medically insured, and 51.1% had bachelor's degrees. 70% of the study participants reported use of medicinal plants. About 66% of participants agreed that medicinal plants or herbs could treat diseases and 58.6% thought that medications could interact with drugs. In general, the participants' knowledge about food/beverage/herb-drug interactions was considered poor. However, a linear regression analysis showed that the level of knowledge was significantly affected (P < .05) by gender, marital status, social status, educational level and employment sector. CONCLUSION Jordanians have a positive perception towards herbs and their ability to treat diseases. However, their knowledge about food/beverage-drug interactions was poor. There is therefore a need to enhance the community awareness of food/beverage/herb-drug interactions.
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Affiliation(s)
- Samar Thiab
- Faculty of Pharmacy, Applied Science Private University, Amman, Jordan
| | - Muna Barakat
- Faculty of Pharmacy, Applied Science Private University, Amman, Jordan
| | - Raja'a Al-Qudah
- Faculty of Pharmacy, Applied Science Private University, Amman, Jordan
| | - Rana Abutaima
- Faculty of Pharmacy, Zarqa Private University, Zarqa, Jordan
| | - Rahma Jamal
- Faculty of Pharmacy, Applied Science Private University, Amman, Jordan
| | - Philip Riby
- The University of Manchester, Manchester, United Kingdom
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9
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Takao K, Endo S, Nagai J, Kamauchi H, Takemura Y, Uesawa Y, Sugita Y. 2-Styrylchromone derivatives as potent and selective monoamine oxidase B inhibitors. Bioorg Chem 2019; 92:103285. [PMID: 31561103 DOI: 10.1016/j.bioorg.2019.103285] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/28/2019] [Accepted: 09/15/2019] [Indexed: 12/14/2022]
Abstract
A series of eighteen 2-styrylchromone derivatives (see Chart 1) were synthesized and evaluated for their monoamine oxidase (MAO) A and B inhibitory activities. Many of the derivatives inhibited MAO-B comparable to pargyline (a positive control), and most of them inhibited MAO-B selectively. Of the eighteen derivatives, compound 9 having methoxy group at R1 and chlorine at R4 showed both the best MAO-B inhibitory activity (IC50 = 17 ± 2.4 nM) and the best MAO-B selectivity (IC50 for MAO-A/IC50 for MAO-B = 1500). The mode of inhibition of compound 9 against MAO-B was competitive and reversible. Quantitative structure-activity relationship (QSAR) analyses of the 2-styrylchromone derivatives were conducted using their pIC50 values with the use of Molecular Operating Environment (MOE) and Dragon, demonstrating that the descriptors of MAO-B inhibitory activity and MAO-B selectivity were 1734 and 121, respectively, that showed significant correlations (P < 0.05). We then examined the 2-styrylchromone structures as useful scaffolds through three-dimensional-QSAR studies using AutoGPA, which is based on the molecular field analysis algorithm using MOE. The model using pIC50 value indexes for MAO-B exhibited a determination coefficient (R2) of 0.873 as well as a Leave-One-Out cross-validated determination coefficient (Q2) of 0.675. These data suggested that the 2-styrylchromone structure might be a useful scaffold for the design and development of novel MAO-B inhibitors.
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Affiliation(s)
- Koichi Takao
- Laboratory of Bioorganic Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyaki-dai, Sakado, Saitama 350-0295, Japan.
| | - Saki Endo
- Laboratory of Bioorganic Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyaki-dai, Sakado, Saitama 350-0295, Japan
| | - Junko Nagai
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Hitoshi Kamauchi
- Laboratory of Bioorganic Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyaki-dai, Sakado, Saitama 350-0295, Japan
| | - Yuri Takemura
- Laboratory of Bioorganic Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyaki-dai, Sakado, Saitama 350-0295, Japan
| | - Yoshihiro Uesawa
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Yoshiaki Sugita
- Laboratory of Bioorganic Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyaki-dai, Sakado, Saitama 350-0295, Japan
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Maddali NK, Viswanath* IVK, Murthy* YLN, Bera R, Takhi M, Rao NS, Gudla V. Design, synthesis and molecular docking studies of quinazolin-4-ones linked to 1,2,3-triazol hybrids as Mycobacterium tuberculosis H37Rv inhibitors besides antimicrobial activity. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02313-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Lipke A, Makarska-Bialokoz M, Sierakowska A, Jasiewicz B. Non-covalent interactions between thio-caffeine derivatives and water-soluble porphyrin in ethanol-water environment. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 192:304-311. [PMID: 29166626 DOI: 10.1016/j.saa.2017.11.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/09/2017] [Accepted: 11/16/2017] [Indexed: 06/07/2023]
Abstract
To determine the binding interactions and ability to form the non-covalent systems, the association process between 5,10,15,20-tetrakis[4-(trimethylammonio)phenyl]-21H,23H-porphine tetra-p-tosylate (H2TTMePP) and a series of five structurally diverse thio-caffeine analogues has been studied in ethanol and ethanol-water solutions, analyzing its absorption and steady-state fluorescence spectra. The porphyrin fluorescence lifetimes in the systems studied were established as well. During the titration with thio-caffeine compounds the slight bathochromic effect and considerable hypochromicity of the porphyrin Soret band maximum can be noted. The fluorescence quenching effect observed for interactions in H2TTMePP - thio-caffeine derivative systems, as well as the order of binding and fluorescence quenching constants (of 105-103mol-1) suggest the existence of the mechanism of static quenching due to the formation of non-covalent and non-fluorescent stacking complexes. In all the systems studied the phenomenon of the fractional accessibility of the fluorophore for the quencher was observed as well. Additionally, the specific binding interactions, due to the changes in reaction environment polarity, can be observed. It was found that thio-caffeine compounds can quench the porphyrin fluorescence according to the structure of thio-substituent in caffeine molecule. The obtained results can be potentially useful from scientific, therapeutic or environmental points of view.
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Affiliation(s)
- Agnieszka Lipke
- Department of Inorganic Chemistry, Maria Curie-Sklodowska University, M. C. Sklodowska Sq. 2, 20-031 Lublin, Poland.
| | - Magdalena Makarska-Bialokoz
- Department of Inorganic Chemistry, Maria Curie-Sklodowska University, M. C. Sklodowska Sq. 2, 20-031 Lublin, Poland.
| | - Arleta Sierakowska
- Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614 Poznań, Poland
| | - Beata Jasiewicz
- Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614 Poznań, Poland
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12
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Can NÖ, Çevik UA, Sağlık BN, Özkay Y, Atlı Ö, Baysal M, Özkay ÜD, Can ÖD. Pharmacological and Toxicological Screening of Novel Benzimidazole-Morpholine Derivatives as Dual-Acting Inhibitors. Molecules 2017; 22:molecules22081374. [PMID: 28825626 PMCID: PMC6152416 DOI: 10.3390/molecules22081374] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 08/15/2017] [Accepted: 08/15/2017] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to investigate acetylcholinesterase (AChE), monoamine oxidase A (MAO-A), monoamine oxidase B (MAO-B), cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2) enzyme inhibitory, and antimicrobial activities of a new series of 2-(4-substituted phenyl)-1-[2-(morpholin-4-yl)ethyl]-1H-benzimidazole derivatives, for their possible use as multi-action therapeutic agents. Target compounds (n = 15) were synthesized under microwave irradiation conditions in two steps, and their structures were elucidated by FT-IR, 1H-NMR, 13C-NMR and high resolution mass spectroscopic analyses. Pharmacological screening studies revealed that two of the compounds (2b and 2j) have inhibitory potential on both COX-1 and COX-2 enzymes. In addition, cytotoxic and genotoxic properties of the compounds 2b, 2j and 2m were investigated via the well-known MTT and Ames tests, which revealed that the mentioned compounds are non-cytotoxic and non-genotoxic. As a concise conclusion, two novel compounds were characterized as potential candidates for treatment of frequently encountered inflammatory diseases.
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Affiliation(s)
- Nafiz Öncü Can
- Department of Analytical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
- Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
| | - Ulviye Acar Çevik
- Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
| | - Begüm Nurpelin Sağlık
- Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
| | - Yusuf Özkay
- Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
| | - Özlem Atlı
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
| | - Merve Baysal
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
| | - Ümide Demir Özkay
- Department of Pharmacology, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
| | - Özgür Devrim Can
- Department of Pharmacology, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey.
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13
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Anguru MR, Taduri AK, Bhoomireddy RD, Jojula M, Gunda SK. Novel drug targets for Mycobacterium tuberculosis: 2-heterostyrylbenzimidazoles as inhibitors of cell wall protein synthesis. Chem Cent J 2017; 11:68. [PMID: 29086847 PMCID: PMC5524660 DOI: 10.1186/s13065-017-0295-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Accepted: 07/11/2017] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Multi drug-resistant and mycobacterial infections are a major public health challenge, leading to high mortality and socioeconomic burdens through worldwide. Novel therapeutics are necessary to treat the drug resistant strains, since no new chemical entities are emerged in the last four decades for the treatment of TB. FINDINGS A series of novel 2-heterostyrylbenzimidazole derivatives were synthesised by cyclisation of (3,4-diaminophenyl)(phenyl)methanone, cinnamic acid using glycerol in high yield. The molecular structures of target compounds (5a-5n) were confirmed by 1H and 13C NMR spectroscopy and mass spectrometry. Newly synthesized compounds were screened for anti-tubercular activity and the MIC was determined against Mycobacterium tuberculosis H37Rv by broth microdilution method using Lowenstein Jensen medium (LJ). These compounds docked into the active site of "Crystal structure of pantothenate synthetase in complex with 2-(2-(benzofuran-2-ylsulfonylcarbamoyl)-5-methoxy-1H-indol-1-yl)acetic acid" (PDB code, 3IVX). Auto dock 4.2 software was used for docking studies. RESULTS 5d, 5e, 5f, 5g, 5i, and 5l show better activity and the most active inhibitor of tuberculosis 5f showed a promising inhibition of M. tuberculosis with MIC value of 16 μg/mL. The molecules functionalized with electron-donating groups (Cl, O, S, etc.) on different aromatic aldehydes (5a-5n) were found to be more active in inhibiting M. tuberculosis. CONCLUSIONS On the basis of docking studies, 5f has shown good affinity for the enzyme. Comparison was made with the binding energies of the standard drugs amoxicillin (-34.28 kcal/mol) and ciprofloxacin (-28.20 kcal/mol). Among all the designed compounds, the compound 5f shows highest binding energy with two amino acid interactions Lys160, Val187 (-9.80 kcal/mol).
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Affiliation(s)
- Mohana Rao Anguru
- Department of Chemistry, College of Engineering, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad, 500 085 India
| | - Ashok Kumar Taduri
- Department of Chemistry, College of Engineering, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad, 500 085 India
| | - Rama Devi Bhoomireddy
- Department of Chemistry, College of Engineering, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad, 500 085 India
| | - Malathi Jojula
- Department of Microbiology, Sri Shivani College of Pharmacy, Warangal, 506002 India
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14
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Can ÖD, Osmaniye D, Demir Özkay Ü, Sağlık BN, Levent S, Ilgın S, Baysal M, Özkay Y, Kaplancıklı ZA. MAO enzymes inhibitory activity of new benzimidazole derivatives including hydrazone and propargyl side chains. Eur J Med Chem 2017; 131:92-106. [DOI: 10.1016/j.ejmech.2017.03.009] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 02/22/2017] [Accepted: 03/04/2017] [Indexed: 12/25/2022]
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15
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Issaoui N, Ghalla H, Bardak F, Karabacak M, Aouled Dlala N, Flakus H, Oujia B. Combined experimental and theoretical studies on the molecular structures, spectroscopy, and inhibitor activity of 3-(2-thienyl)acrylic acid through AIM, NBO,FT-IR, FT-Raman, UV and HOMO-LUMO analyses, and molecular docking. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.11.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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16
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Nguyen HT, Doan DN, Truong T. Unprecedented salt-promoted direct arylation of acidic sp2 CH bonds under heterogeneous Ni-MOF-74 catalysis: Synthesis of bioactive azole derivatives. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.molcata.2016.11.009] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Jia WZ, Cheng F, Zhang YJ, Ge JY, Yao SQ, Zhu Q. Rapid synthesis of flavone-based monoamine oxidase (MAO) inhibitors targeting two active sites using click chemistry. Chem Biol Drug Des 2016; 89:141-151. [DOI: 10.1111/cbdd.12841] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 05/29/2016] [Accepted: 08/13/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Wei Zhen Jia
- Institute of Bioengineering; Zhejiang University of Technology; Zhejiang China
| | - Feng Cheng
- Institute of Bioengineering; Zhejiang University of Technology; Zhejiang China
| | - Yin Jun Zhang
- Institute of Bioengineering; Zhejiang University of Technology; Zhejiang China
| | - Jin Yan Ge
- Institute of Bioengineering; Zhejiang University of Technology; Zhejiang China
| | - Shao Q. Yao
- Department of Chemistry; National University of Singapore; Singapore Singapore
| | - Qing Zhu
- Institute of Bioengineering; Zhejiang University of Technology; Zhejiang China
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18
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Bhayye SS, Roy K, Saha A. Pharmacophore generation, atom-based 3D-QSAR, HQSAR and activity cliff analyses of benzothiazine and deazaxanthine derivatives as dual A 2A antagonists/MAO‑B inhibitors. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2016; 27:183-202. [PMID: 26873265 DOI: 10.1080/1062936x.2015.1136840] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Dual inhibition of A2A and MAO-B is an emerging strategy in neurodegenerative diseases, such as Alzheimer's disease (AD) and Parkinson's disease (PD). In this study, atom-based three-dimensional quantitative structure-activity relationship (3D-QSAR) and hologram quantitative structure-activity relationship (HQSAR) models were generated with benzothiazine and deazaxanthine derivatives. Based on activity against A2A and MAO-B, two statistically significant 3D-QSAR models (r2 = 0.96, q2 = 0.76 and r2 = 0.91, q2 = 0.63) and HQSAR models (r2 = 0.93, q2 = 0.68 and r2 = 0.97, q2 = 0.58) were developed. In an activity cliff analysis, structural outliers were identified by calculating the Mahalanobis distance for a pair of compounds with A2A and MAO-B inhibitory activities. The generated 3D-QSAR and HQSAR models, activity cliff analysis, molecular docking and dynamic studies for dual target protein inhibitors provide key structural scaffolds that serve as building blocks in designing drug-like molecules for neurodegenerative diseases.
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Affiliation(s)
- S S Bhayye
- a Department of Chemical Technology , University of Calcutta , Kolkata , West Bengal , India
| | - K Roy
- b Department of Pharmaceutical Technology , Jadavpur University , Kolkata , West Bengal , India
| | - A Saha
- a Department of Chemical Technology , University of Calcutta , Kolkata , West Bengal , India
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19
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Banerji B, Pramanik SK. Synthesis and cytotoxicity studies of 1-propenyl-1,3-dihydro-benzimidazol-2-one. J Chem Biol 2015; 8:73-8. [PMID: 26101549 DOI: 10.1007/s12154-015-0130-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 03/24/2015] [Indexed: 01/04/2023] Open
Abstract
A heterocyclic compound 1-propenyl-1,3-dihydro-benzimidazol-2-one was synthesized by a palladium-catalyzed rearrangement reaction. Anticancer activities were confirmed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay against Neura 2a (neuroblastoma cell), HEK 293 (kidney cancer) and MCF-7 (breast cancer) cell lines at low micromolar range. Furthermore, clear images from phase-contrast and fluorescence microscopes and confocal images unambiguously confirm the cancer cell death. The single X-ray crystal structure of the compound unambiguously proves the structure of the benzimidazolone compound.
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Affiliation(s)
- Biswadip Banerji
- Department of Chemistry, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata, 700032 India
| | - Sumit Kumar Pramanik
- Department of Chemistry, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata, 700032 India
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20
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Insuasty B, Ramírez J, Becerra D, Echeverry C, Quiroga J, Abonia R, Robledo SM, Vélez ID, Upegui Y, Muñoz JA, Ospina V, Nogueras M, Cobo J. An efficient synthesis of new caffeine-based chalcones, pyrazolines and pyrazolo[3,4-b][1,4]diazepines as potential antimalarial, antitrypanosomal and antileishmanial agents. Eur J Med Chem 2015; 93:401-13. [PMID: 25725376 DOI: 10.1016/j.ejmech.2015.02.040] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 02/19/2015] [Accepted: 02/20/2015] [Indexed: 12/15/2022]
Abstract
A new series of chalcones 5a-f were synthesized from caffeine-based aldehyde 3 and substituted acetophenones 4a-f. Treatment of compounds 5a-f with hydrazine hydrate led to pyrazolines 6a-f, and their subsequent reaction with acetic anhydride or formic acid afforded the corresponding N-substituted pyrazolines 7a-f and 8a-f respectively. Additionally, the regioselective cyclocondensation reaction of chalcones 5a-f with 4,5-diaminopyrazole 9 afforded the diazepine derivatives 10a-f. Synthesis of the above novel compounds was carried out through a simple procedure involving an easy work-up and mild reaction conditions. In vitro antimalarial activity against Plasmodium falciparum was evaluated for the obtained compounds. Among of them, just pirazoline 6a showed an outstanding growth inhibition percentage 85.2 ± 5.4%, while diazepines 10a-f showed remarkable growth inhibitions in the range of 80.3 ± 13.5 to 94.2 ± 0.2% when were tested at 20 μg/mL. Compounds 5b, 5e, 7c and 7f showed remarkable activities against Leishmania panamensis with growth inhibition of 88.3 ± 1.5, 82.6 ± 2.2, 82.8 ± 1.7 and 87.6 ± 0.5% respectively, at 20 μg/mL. In vitro assays against Trypanozoma cruzi showed that pyrazoline 6d displayed a growth inhibition of 61.9 ± 7.8% at 20 μg/mL while chalcone 5f was considered especially active with a growth inhibition of 9.7 ± 1.5% for a very low concentration of 1.0 μg/mL.
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Affiliation(s)
- Braulio Insuasty
- Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia.
| | - Juan Ramírez
- Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia
| | - Diana Becerra
- Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia
| | - Carlos Echeverry
- Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia
| | - Jairo Quiroga
- Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia
| | - Rodrigo Abonia
- Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia
| | - Sara M Robledo
- PECET, Instituto de Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia, PO Box 1226, Medellín, Colombia
| | - Iván Darío Vélez
- PECET, Instituto de Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia, PO Box 1226, Medellín, Colombia
| | - Yulieth Upegui
- PECET, Instituto de Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia, PO Box 1226, Medellín, Colombia
| | - July A Muñoz
- PECET, Instituto de Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia, PO Box 1226, Medellín, Colombia
| | - Victoria Ospina
- PECET, Instituto de Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia, PO Box 1226, Medellín, Colombia
| | - Manuel Nogueras
- Department of Inorganic and Organic Chemistry, Universidad de Jaén, 23071 Jaén, Spain
| | - Justo Cobo
- Department of Inorganic and Organic Chemistry, Universidad de Jaén, 23071 Jaén, Spain
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21
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Radulescu MC, Bucur MP, Bucur B, Radu GL. Biosensor based on inhibition of monoamine oxidases A and B for detection of β-carbolines. Talanta 2015; 137:94-9. [PMID: 25770611 DOI: 10.1016/j.talanta.2015.02.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/03/2015] [Accepted: 02/06/2015] [Indexed: 11/26/2022]
Abstract
β-Carbolines are inhibitors of monoamine oxidases (MAO-A and MAO-B) and can be found in foods, hallucinogenic plant or various drugs. We have developed a fast analysis method for β-carbolines based on the inhibition of MAO. The enzymes were immobilized on screen-printed electrodes modified with a stabilized film of Prussian blue that contain also copper. We have used benzylamine as substrate for the enzymatic reaction and the hydrogen peroxide was measured amperometrically at -50 mV. The detection limits obtained were 5.0 µM for harmane and 2.5 µM for both harmaline and norharmane. The MAO-A is inhibited by all three tested β-carbolines (harmane, norharmane, and harmaline) while MAO-B is inhibited only by norharmane. The presence of norharmane in mixtures of β-carbolines can be identified based on the difference between the cumulative inhibition of MAO-A by all β-carbolines and MAO-B inhibition. The developed biosensors were used for food analysis.
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Affiliation(s)
- Maria-Cristina Radulescu
- National Institute of Research and Development for Biological Sciences, Centre of Bioanalysis, 296, Splaiul Independentei, 060031 Bucharest, Romania
| | - Madalina-Petruta Bucur
- National Institute of Research and Development for Biological Sciences, Centre of Bioanalysis, 296, Splaiul Independentei, 060031 Bucharest, Romania
| | - Bogdan Bucur
- National Institute of Research and Development for Biological Sciences, Centre of Bioanalysis, 296, Splaiul Independentei, 060031 Bucharest, Romania.
| | - Gabriel Lucian Radu
- National Institute of Research and Development for Biological Sciences, Centre of Bioanalysis, 296, Splaiul Independentei, 060031 Bucharest, Romania
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22
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Song XR, Qiu YF, Song B, Hao XH, Han YP, Gao P, Liu XY, Liang YM. BF3·Et2O-Promoted Cleavage of the Csp–Csp2 Bond of 2-Propynolphenols/Anilines: Route to C2-Alkenylated Benzoxazoles and Benzimidazoles. J Org Chem 2015; 80:2263-71. [DOI: 10.1021/jo502761x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xian-Rong Song
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yi-Feng Qiu
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Bo Song
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xin-Hua Hao
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Ya-Ping Han
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Pin Gao
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Yuan Liu
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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23
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Ai T, Xu Y, Qiu L, Geraghty RJ, Chen L. Hydroxamic Acids Block Replication of Hepatitis C Virus. J Med Chem 2014; 58:785-800. [DOI: 10.1021/jm501330g] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Teng Ai
- Center for Drug Design, Academic
Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, Minnesota 55455, United States
| | - Yanli Xu
- Center for Drug Design, Academic
Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, Minnesota 55455, United States
| | - Li Qiu
- Center for Drug Design, Academic
Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, Minnesota 55455, United States
| | - Robert J. Geraghty
- Center for Drug Design, Academic
Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, Minnesota 55455, United States
| | - Liqiang Chen
- Center for Drug Design, Academic
Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, Minnesota 55455, United States
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24
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Patil PO, Bari SB. Nitrogen heterocycles as potential monoamine oxidase inhibitors: Synthetic aspects. ARAB J CHEM 2014. [DOI: 10.1016/j.arabjc.2012.12.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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25
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Syntheses of arylcinnamic acids, using Alum-Cs2CO3 as precursors of new 2-heterostyrylbenzimidazoles and their antimicrobial evaluation. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1208-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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Van der Walt MM, Terre’Blanche G, Petzer A, Lourens AC, Petzer JP. The adenosine A2A antagonistic properties of selected C8-substituted xanthines. Bioorg Chem 2013; 49:49-58. [DOI: 10.1016/j.bioorg.2013.06.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 05/13/2013] [Accepted: 06/17/2013] [Indexed: 10/26/2022]
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27
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Gołembiowska K, Wardas J, Noworyta-Sokołowska K, Kamińska K, Górska A. Effects of adenosine receptor antagonists on the in vivo LPS-induced inflammation model of Parkinson's disease. Neurotox Res 2013; 24:29-40. [PMID: 23296550 PMCID: PMC3666128 DOI: 10.1007/s12640-012-9372-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Revised: 12/21/2012] [Accepted: 12/24/2012] [Indexed: 12/20/2022]
Abstract
The study shows effects of the nonselective adenosine A1/A2A receptor antagonist caffeine and the selective A2A receptor antagonist KW6002 on LPS-induced changes in the extracellular levels of dopamine (DA), glutamate, adenosine, hydroxyl radical, and A2A receptor density in the rat striatum. Intrastriatal LPS (10 μg) injection decreased extracellular level of DA and increased the level of adenosine, glutamate, and hydroxyl radical on the ipsilateral side 24 h after LPS administration. Caffeine (10 and 20 mg/kg i.p.) and KW6002 (1.5 and 3 mg/kg i.p.) given once daily for 6 days and on the 7th day 2 h before and 4 h after LPS injection reversed the LPS-induced changes in extracellular levels of DA, adenosine, glutamate, and hydroxyl radical production. Moreover, LPS-induced decrease in the striatal A2A receptor density was increased by caffeine and KW6002. In order to show the late LPS effect on oxidative damage of DA neurons, the contents of DA, DOPAC, HVA, and hydroxyl radical were determined 72 h after LPS (10 μg) administration into both striata. LPS decreased striatal and substantia nigra content of DA, DOPAC, and HVA while increased striatal but not nigral content of hydroxyl radical. Caffeine (20 mg/kg) and KW60002 (3 mg/kg) given once daily for 6 days and on the 7th day 2 h before and 4 h after intrastriatal injection of LPS normalized the content of DA and its metabolites in both brain regions as well as decreased LPS-induced increase in the striatal level of hydroxyl radical. In conclusion, our data demonstrated antioxidant effects of caffeine and KW6002 in the inflammatory model of PD.
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Affiliation(s)
- Krystyna Gołembiowska
- Institute of Pharmacology, Polish Academy of Sciences, Smętna 12 Street, 31-343, Kraków, Poland.
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28
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Buscató E, Büttner D, Brüggerhoff A, Klingler FM, Weber J, Scholz B, Zivković A, Marschalek R, Stark H, Steinhilber D, Bode HB, Proschak E. From a multipotent stilbene to soluble epoxide hydrolase inhibitors with antiproliferative properties. ChemMedChem 2013; 8:919-23. [PMID: 23596124 DOI: 10.1002/cmdc.201300057] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Indexed: 12/19/2022]
Abstract
Inspired by nature: Natural product isopropylstilbene was identified as an inhibitor of soluble epoxide hydrolase exhibiting antiproliferative properties. Following the natural product inspired design approach, a library of (E)-styryl-1H-benzo[d]imidazoles was synthesized and evaluated with recombinant enzyme and on several cancer cell lines.
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Affiliation(s)
- Estella Buscató
- Institut für Pharmazeutische Chemie, Goethe Universität Frankfurt am Main, Frankfurt am Main, Germany
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29
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Rivara S, Piersanti G, Bartoccini F, Diamantini G, Pala D, Riccioni T, Stasi MA, Cabri W, Borsini F, Mor M, Tarzia G, Minetti P. Synthesis of (E)-8-(3-Chlorostyryl)caffeine Analogues Leading to 9-Deazaxanthine Derivatives as Dual A2A Antagonists/MAO-B Inhibitors. J Med Chem 2013; 56:1247-61. [DOI: 10.1021/jm301686s] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Silvia Rivara
- Dipartimento
di Farmacia, Università
degli Studi di Parma, Viale G.P. Usberti 27 A, I-43124 Parma, Italy
| | - Giovanni Piersanti
- Department of Biomolecular Sciences,
University of Urbino, Piazza Rinascimento 6, I-61029 Urbino (PU),
Italy
| | - Francesca Bartoccini
- Department of Biomolecular Sciences,
University of Urbino, Piazza Rinascimento 6, I-61029 Urbino (PU),
Italy
| | - Giuseppe Diamantini
- Department of Biomolecular Sciences,
University of Urbino, Piazza Rinascimento 6, I-61029 Urbino (PU),
Italy
| | - Daniele Pala
- Dipartimento
di Farmacia, Università
degli Studi di Parma, Viale G.P. Usberti 27 A, I-43124 Parma, Italy
| | - Teresa Riccioni
- Sigma-Tau Industrie Farmaceutiche
Riunite
S.p.A., Via Pontina Km 30,400, I-00040 Pomezia, Italy
| | - Maria Antonietta Stasi
- Sigma-Tau Industrie Farmaceutiche
Riunite
S.p.A., Via Pontina Km 30,400, I-00040 Pomezia, Italy
| | - Walter Cabri
- Sigma-Tau Industrie Farmaceutiche
Riunite
S.p.A., Via Pontina Km 30,400, I-00040 Pomezia, Italy
| | - Franco Borsini
- Sigma-Tau Industrie Farmaceutiche
Riunite
S.p.A., Via Pontina Km 30,400, I-00040 Pomezia, Italy
| | - Marco Mor
- Dipartimento
di Farmacia, Università
degli Studi di Parma, Viale G.P. Usberti 27 A, I-43124 Parma, Italy
| | - Giorgio Tarzia
- Department of Biomolecular Sciences,
University of Urbino, Piazza Rinascimento 6, I-61029 Urbino (PU),
Italy
| | - Patrizia Minetti
- Sigma-Tau Industrie Farmaceutiche
Riunite
S.p.A., Via Pontina Km 30,400, I-00040 Pomezia, Italy
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30
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Geldenhuys WJ, Van der Schyf CJ. Designing drugs with multi-target activity: the next step in the treatment of neurodegenerative disorders. Expert Opin Drug Discov 2012; 8:115-29. [DOI: 10.1517/17460441.2013.744746] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Werner J Geldenhuys
- Northeast Ohio Medical University, College of Pharmacy, Neurotherapeutics Emphasis Group, Department of Pharmaceutical Sciences,
Rootstown, 4209 State Route 44, P.O. Box 95, OH 44272, USA ;
| | - Cornelis J Van der Schyf
- Northeast Ohio Medical University, College of Pharmacy, Neurotherapeutics Emphasis Group, Department of Pharmaceutical Sciences,
Rootstown, 4209 State Route 44, P.O. Box 95, OH 44272, USA ;
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31
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Bandyopadhyay P, Agrawal SK, Sathe M, Sharma P, Kaushik M. A facile and rapid one-step synthesis of 8-substituted xanthine derivatives via tandem ring closure at room temperature. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Bolognesi ML, Melchiorre C, Van der Schyf CJ, Youdim M. Discovery of Multi-Target Agents for Neurological Diseases via Ligand Design. DESIGNING MULTI-TARGET DRUGS 2012. [DOI: 10.1039/9781849734912-00290] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The incidence of neurological disorders in the developed world is rising in concert with an increase in human life expectancy, due in large part to better nutrition and health care. Even as drug discovery efforts are refocused on these disorders, there has been a dearth in the introduction of new disease-modifying therapies to prevent or delay their onset, or reverse their progression. Mounting evidence points to complex and heterogeneous etiopathologies that underlie these diseases. Therefore, it is unlikely that disorders in this class will be mitigated by any single drug that acts exclusively on a single pathway or target. The rational design of novel drug entities with the ability to simultaneously address multiple drug targets of a complex pathophysiology has recently emerged as a new paradigm in drug discovery. Similarly to the concept of multi-target agents within the psychopharmacology field, ligand design has gained an increasing prominence within the medicinal chemistry community. In this chapter we discuss several examples of select chemical scaffolds (polyamines, alkylxanthines, and propargyl carbamates) wherein these concepts were applied to develop novel drug candidates for Alzheimer's disease and Parkinson's disease.
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Affiliation(s)
| | | | | | - Moussa Youdim
- Technion Israel Institute of Technology Haifa Israel
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Chaurasiya ND, Ganesan S, Nanayakkara ND, Dias LR, Walker LA, Tekwani BL. Inhibition of human monoamine oxidase A and B by 5-phenoxy 8-aminoquinoline analogs. Bioorg Med Chem Lett 2012; 22:1701-4. [DOI: 10.1016/j.bmcl.2011.12.108] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 12/20/2011] [Accepted: 12/21/2011] [Indexed: 10/14/2022]
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34
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Huang Y, Song F, Wang Z, Xi P, Wu N, Wang Z, Lan J, You J. Dehydrogenative Heck coupling of biologically relevant N-heteroarenes with alkenes: discovery of fluorescent core frameworks. Chem Commun (Camb) 2012; 48:2864-6. [DOI: 10.1039/c2cc17557f] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Hu S, Nian S, Qin K, Xiao T, Li L, Qi X, Ye F, Liang G, Hu G, He J, Yu Y, Song B. Design, Synthesis and Inhibitory Activities of 8-(Substituted styrol-formamido)phenyl-xanthine Derivatives on Monoamine Oxidase B. Chem Pharm Bull (Tokyo) 2012; 60:385-90. [DOI: 10.1248/cpb.60.385] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Suwen Hu
- School of Pharmacy, Wenzhou Medical College
| | - Siyun Nian
- School of Pharmacy, Wenzhou Medical College
| | - Kuiyou Qin
- School of Pharmacy, Wenzhou Medical College
| | - Tong Xiao
- School of Pharmacy, Wenzhou Medical College
| | - Lingna Li
- School of Pharmacy, Wenzhou Medical College
| | - Xiaolu Qi
- School of Pharmacy, Wenzhou Medical College
| | - Faqing Ye
- School of Pharmacy, Wenzhou Medical College
| | | | - Guoxin Hu
- School of Pharmacy, Wenzhou Medical College
| | - Jincai He
- Department of Heurology, the First Affiliated Hospital of Wenzhou Medical College
| | - Yinfei Yu
- The Optometry Eye Hospital of Wenzhou Medical College
| | - Bo Song
- School of Pharmacy, Wenzhou Medical College
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Synthesis and in vitro evaluation of fluorinated styryl benzazoles as amyloid-probes. Bioorg Med Chem 2011; 19:7698-710. [PMID: 22078413 DOI: 10.1016/j.bmc.2011.09.065] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 09/23/2011] [Accepted: 09/28/2011] [Indexed: 11/23/2022]
Abstract
The formation of proteinaceous aggregates is a pathognomonic hallmark of several neurodegenerative disorders such as Alzheimer's and Parkinson's diseases. To date, the final diagnostic for these diseases can only be achieved by immunostaining of post-mortem brain tissues with the commonly used congo red and Thioflavin T/S amyloid-dyes. The interest in developing amyloid-avid radioprobes to be used for protein aggregates imaging by positron emission tomography has grown substantialy, due to the promise in assisting diagnosis of these disorders. To this purpose, the present work describes the synthesis and characterization of four novel fluorinated styryl benzazole derivatives 1-4 by means of the Wittig reaction, as well as their in vitro evaluation as amyloid-probing agents. All compounds were obtained as mixtures of geometric E and Z isomers, with the preferable formation of the E isomer. Photoisomerization reactions allowed for the maximization of the minor Z isomers. The authentic 1-4E/Z isomers were isolated after purification by column chromatography under dark conditions. Profiting from the fluorescence properties of the different geometric isomers of 1-4, their binding affinities towards amyloid fibrils of insulin, α-synuclein and β-amyloid peptide were also measured. These compounds share similarities with Thioflavin T, interacting specifically with fibrillary species with a red-shift in the excitation wavelengths along with an increase in the fluorescence emission intensity. Apparent binding constants were determined and ranged between 1.22 and 23.96 μM(-1). The present data suggest that the novel fluorinated styryl benzazole derivatives may prove useful for the design of (18)F-labeled amyloid radioprobes.
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Legoabe L, Kruger J, Petzer A, Bergh JJ, Petzer JP. Monoamine oxidase inhibition by selected anilide derivatives. Eur J Med Chem 2011; 46:5162-74. [DOI: 10.1016/j.ejmech.2011.08.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Revised: 08/24/2011] [Accepted: 08/25/2011] [Indexed: 01/08/2023]
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Sadanandam P, Jyothi V, Adharvana Chari M, Das P, Mukkanti K. Synthesis and characterization of 9-methyl-2-morpholin-4-yl-8-substituted phenyl-1H-purine derivatives using polyphosphoric acid (PPA) as an efficient catalyst. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.076] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zhao SY, Zhang HQ, Zhang DQ, Shao ZY. N-Methylation of NH-Containing Heterocycles with Dimethyl Carbonate Catalyzed by TMEDA. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.523151] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Sheng-Yin Zhao
- a Department of Chemistry , Donghua University , Shanghai , China
| | - Hai-Quan Zhang
- a Department of Chemistry , Donghua University , Shanghai , China
| | - Deng-Qing Zhang
- a Department of Chemistry , Donghua University , Shanghai , China
| | - Zhi-Yu Shao
- a Department of Chemistry , Donghua University , Shanghai , China
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40
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Strydom B, Bergh JJ, Petzer JP. 8-Aryl- and alkyloxycaffeine analogues as inhibitors of monoamine oxidase. Eur J Med Chem 2011; 46:3474-85. [DOI: 10.1016/j.ejmech.2011.05.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Revised: 05/05/2011] [Accepted: 05/05/2011] [Indexed: 01/03/2023]
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41
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Desideri N, Bolasco A, Fioravanti R, Monaco LP, Orallo F, Yáñez M, Ortuso F, Alcaro S. Homoisoflavonoids: natural scaffolds with potent and selective monoamine oxidase-B inhibition properties. J Med Chem 2011; 54:2155-64. [PMID: 21405131 DOI: 10.1021/jm1013709] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A series of homoisoflavonoids [(E)-3-benzylidenechroman-4-ones 1a-w, 3-benzyl-4H-chromen-4-ones 2a-g, and 3-benzylchroman-4-ones 3a-e] have been synthesized and tested in vitro as inhibitors of human monoamine oxidase isoforms A and B (hMAO-A and hMAO-B). Most of the compounds were found to be potent and selective MAO-B inhibitors. In general, the (E)-3-benzylidenechroman-4-ones 1a-w showed activities in the nano- or micromolar range coupled with high selectivity against hMAO-B. The reduction of the exocyclic double bond results in compounds 3a-e selective against isoform B and active in the micromolar range. In contrast, the endocyclic migration of the double bond (compounds 2a-g) generally produces the loss of the inhibitory activity or a marked reduction in potency. (E)-3-(4-(Dimethylamino)benzylidene)chroman-4-one (1l) and (E)-5,7-dihydroxy-3-(4-hydroxybenzylidene)chroman-4-one (1h) were the most interesting compounds of the entire series of inhibitors, showing hMAO-B affinity better than the selective inhibitor selegiline. Molecular modeling studies have been carried out to explain the selectivity of the most active homoisoflavonoids 1h and 1l.
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Affiliation(s)
- Nicoletta Desideri
- Dipartimento di Chimica e Tecnologie del Farmaco, Università La Sapienza di Roma, P.le Aldo Moro, 5, 00185 Rome, Italy.
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Abstract
The natural plant alkaloids caffeine and theophylline were the first adenosine receptor (AR) antagonists described in the literature. They exhibit micromolar affinities and are non-selective. A large number of derivatives and analogues were subsequently synthesized and evaluated as AR antagonists. Very potent antagonists have thus been developed with selectivity for each of the four AR subtypes.
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Affiliation(s)
- Christa Müller
- PharmaCenter Bonn, Pharmaceutical Sciences Bonn (PSB), University of Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, An der Immenburg 4, D-53121 Bonn, Germany, Phone +49-228-73-2301, Fax +49-228-73-2567
| | - Kenneth A. Jacobson
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bldg. 8A, Rm. B1A-19, NIH, NIDDK, LBC, Bethesda, MD 20892, United States of America, Phone +1-301-496-9024, Fax +1-301-480-8422
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43
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Manley-King CI, Bergh JJ, Petzer JP. Inhibition of monoamine oxidase by selected C5- and C6-substituted isatin analogues. Bioorg Med Chem 2011; 19:261-74. [DOI: 10.1016/j.bmc.2010.11.028] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Revised: 11/03/2010] [Accepted: 11/09/2010] [Indexed: 12/30/2022]
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44
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Messaoudi S, Brion J, Alami M. Transition‐Metal‐Catalyzed Direct C–H Alkenylation, Alkynylation, Benzylation, and Alkylation of (Hetero)arenes. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000928] [Citation(s) in RCA: 169] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Samir Messaoudi
- Université Paris‐Sud, CNRS, BioCIS UMR 8076, Laboratoire de Chimie Thérapeutique, Faculté de Pharmacie, 5 rue J.‐B. Clément, 92296 Châtenay‐Malabry, France, Fax: +33‐1‐46835828
| | - Jean‐Daniel Brion
- Université Paris‐Sud, CNRS, BioCIS UMR 8076, Laboratoire de Chimie Thérapeutique, Faculté de Pharmacie, 5 rue J.‐B. Clément, 92296 Châtenay‐Malabry, France, Fax: +33‐1‐46835828
| | - Mouâd Alami
- Université Paris‐Sud, CNRS, BioCIS UMR 8076, Laboratoire de Chimie Thérapeutique, Faculté de Pharmacie, 5 rue J.‐B. Clément, 92296 Châtenay‐Malabry, France, Fax: +33‐1‐46835828
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45
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Sahnoun S, Messaoudi S, Brion JD, Alami M. Pd/Cu-Catalyzed Direct Alkenylation of Azole Heterocycles with Alkenyl Halides. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000959] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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46
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Zhao H, Fu H, Qiao R. Copper-Catalyzed Direct Amination of Ortho-Functionalized Haloarenes with Sodium Azide as the Amino Source. J Org Chem 2010; 75:3311-6. [DOI: 10.1021/jo100345t] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haibo Zhao
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
- State Key Laboratory of Chemical Resource Engineering, Department of Pharmaceutical Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Renzhong Qiao
- State Key Laboratory of Chemical Resource Engineering, Department of Pharmaceutical Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
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47
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Strydom B, Malan SF, Castagnoli N, Bergh JJ, Petzer JP. Inhibition of monoamine oxidase by 8-benzyloxycaffeine analogues. Bioorg Med Chem 2010; 18:1018-28. [DOI: 10.1016/j.bmc.2009.12.064] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Revised: 12/18/2009] [Accepted: 12/28/2009] [Indexed: 10/20/2022]
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48
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Prins LH, Petzer JP, Malan SF. Synthesis and in vitro evaluation of pteridine analogues as monoamine oxidase B and nitric oxide synthase inhibitors. Bioorg Med Chem 2009; 17:7523-30. [DOI: 10.1016/j.bmc.2009.09.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2009] [Revised: 09/09/2009] [Accepted: 09/10/2009] [Indexed: 11/26/2022]
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49
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Sigman MS, Miller JJ. Examination of the Role of Taft-Type Steric Parameters in Asymmetric Catalysis. J Org Chem 2009; 74:7633-43. [DOI: 10.1021/jo901698t] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112
| | - Jeremie J. Miller
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112
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50
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Manley-King CI, Terre’Blanche G, Castagnoli N, Bergh JJ, Petzer JP. Inhibition of monoamine oxidase B by N-methyl-2-phenylmaleimides. Bioorg Med Chem 2009; 17:3104-10. [DOI: 10.1016/j.bmc.2009.03.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Revised: 03/02/2009] [Accepted: 03/03/2009] [Indexed: 11/28/2022]
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