1
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Nevrlka F, Bědroň A, Valenta M, Tranová L, Stýskala J. Study of Direct N7 Regioselective tert-Alkylation of 6-Substituted Purines and Their Modification at Position C6 through O, S, N, and C Substituents. ACS OMEGA 2024; 9:17368-17378. [PMID: 38645315 PMCID: PMC11024948 DOI: 10.1021/acsomega.4c00068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/26/2024] [Accepted: 03/27/2024] [Indexed: 04/23/2024]
Abstract
A new N7 direct regioselective method allowing the introduction of tert-alkyl groups into appropriate 6-substituted purine derivatives is developed. This method is based on a reaction of N-trimethylsilylated purines with a tert-alkyl halide using SnCl4 as a catalyst. In this work, we study the structure and optimal reaction conditions leading to the N7 isomer and in some cases also to the N9 isomer. The main goal is devoted to preparing 7-(tert-butyl)-6-chloropurine as a suitable compound for other purine transformations. The stability of the tert-butyl group at the N7 position is tested for classic model reactions, leading to the preparation of new 6,7-disubstituted purine derivatives, which is also interesting from the point of view of possible biological activity.
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Affiliation(s)
- Filip Nevrlka
- Department of Organic Chemistry, Faculty
of Science, Palacký University, 17. Listopadu 12, 771 46 Olomouc, Czech Republic
| | - Adam Bědroň
- Department of Organic Chemistry, Faculty
of Science, Palacký University, 17. Listopadu 12, 771 46 Olomouc, Czech Republic
| | - Michal Valenta
- Department of Organic Chemistry, Faculty
of Science, Palacký University, 17. Listopadu 12, 771 46 Olomouc, Czech Republic
| | - Lenka Tranová
- Department of Organic Chemistry, Faculty
of Science, Palacký University, 17. Listopadu 12, 771 46 Olomouc, Czech Republic
| | - Jakub Stýskala
- Department of Organic Chemistry, Faculty
of Science, Palacký University, 17. Listopadu 12, 771 46 Olomouc, Czech Republic
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2
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Zhang Z, Wang Y, Xu Q, Zhou X, Ling Y, Zhang J, Mao L. Methyl Canthin-6-one-2-carboxylate Restrains the Migration/Invasion Properties of Fibroblast-like Synoviocytes by Suppressing the Hippo/YAP Signaling Pathway. Pharmaceuticals (Basel) 2023; 16:1440. [PMID: 37895911 PMCID: PMC10610387 DOI: 10.3390/ph16101440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/02/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
Rheumatoid arthritis (RA) is an inflammatory condition that causes severe cartilage degradation and synovial damage in the joints with multiple systemic implications. Previous studies have revealed that fibroblast-like synoviocytes (FLSs) play a pivotal role in the pathogenesis of RA. The appropriate regulation of FLS function is an efficient approach for the treatment of this disease. In the present study, we explored the effects of methyl canthin-6-one-2-carboxylate (Cant), a novel canthin-6-one alkaloid, on the function of FLSs. Our data showed that exposure to Cant significantly suppressed RA-FLS migration and invasion properties in a dose-dependent manner. Meanwhile, pre-treatment with Cant also had an inhibitory effect on the release of several pro-inflammatory cytokines, including IL-6 and IL-1β, as well as the production of MMP1 and MMP3, which are important mediators of FLS invasion. In further mechanistic studies, we found that Cant had an inhibitory effect on the Hippo/YAP signaling pathway. Treatment with Cant suppressed YAP expression and phosphorylation on serine 127 and serine 397 while enhancing LATS1 and MST1 levels, both being important upstream regulators of YAP. Moreover, YAP-specific siRNA or YAP inhibition significantly inhibited wound healing as well as the migration and invasion rate of FLS cells, an impact similar to Cant treatment. Meanwhile, the over-expression of YAP significantly reversed the Cant-induced decline in RA-FLS cell migration and invasion, indicating that YAP was required in the inhibitory effect of Cant on the migration and invasion of RA-FLS cells. Additionally, supplementation of MMP1, but not MMP3, in culture supernatants significantly reversed the inhibitory effect of Cant on RA-FLS cell invasion. Our data collectively demonstrated that Cant may suppress RA-FLS migration and invasion by inhibiting the production of MMP1 via inhibiting the YAP signaling pathway, suggesting a potential of Cant for the further development of anti-RA drugs.
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Affiliation(s)
- Zongying Zhang
- Department of Immunology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, China; (Z.Z.)
| | - Yunhan Wang
- Department of Immunology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, China; (Z.Z.)
| | - Qiuyun Xu
- Department of Immunology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, China; (Z.Z.)
| | - Xiaorong Zhou
- Department of Immunology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, China; (Z.Z.)
| | - Yong Ling
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Jie Zhang
- Department of Immunology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, China; (Z.Z.)
| | - Liming Mao
- Department of Immunology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, China; (Z.Z.)
- Basic Medical Research Center, School of Medicine, Nantong University, Nantong 226019, China
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3
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M J, Joy F, Nizam A, Naidu Krishna SB. Multicomponent Synthesis Strategies, Catalytic Activities, and Potential Therapeutic Applications of Pyranocoumarins: A Comprehensive Review. Chem Biodivers 2023; 20:e202300836. [PMID: 37702294 DOI: 10.1002/cbdv.202300836] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/06/2023] [Accepted: 09/11/2023] [Indexed: 09/14/2023]
Abstract
Fused coumarins, because of their remarkable biological and therapeutic properties, particularly pyranocoumarins, have caught the interest of synthetic organic chemists, leading to the development of more efficient and environmentally friendly protocols for synthesizing pyranocoumarin derivatives. These compounds are the most promising heterocycles discovered in both natural and synthetic sources, with anti-inflammatory, anti-HIV, antitubercular, antihyperglycemic, and antibacterial properties. This review employed the leading scientific databases Scopus, Web of Science, Google Scholar, and PubMed up to the end of 2022, as well as the combining terms pyranocoumarins, synthesis, isolation, structural elucidation, and biological activity. Among the catalysts employed, acidic magnetic nanocatalysts, transition metal catalysts, and carbon-based catalysts have all demonstrated improved reaction yields and facilitated reactions under milder conditions. Herein, the present review discusses the various multicomponent synthetic strategies for pyranocoumarins catalyzed by transition metal-based catalysts, transition metal-based nanocatalysts, transition metal-free catalysts, carbon-based nanocatalysts, and their potential pharmacological activities.
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Affiliation(s)
- Jayalakshmi M
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka), 560029, India
| | - Francis Joy
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka), 560029, India
| | - Aatika Nizam
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka), 560029, India
| | - Suresh Babu Naidu Krishna
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, 4000, South Africa
- Department of Biomedical and Clinical Technology, Durban University of Technology, Durban, 4000, South Africa
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4
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Karan P, Shit B, Panja P, Khatun A, Pal J, Chakarabarti S, Pal S, Ghosh A, Hossain M. Synthesis of water-soluble novel bioactive pyridine-based azo coumarin derivative and competitive cytotoxicity, DNA binding, BSA binding study, and in silico analysis with coumarin. Bioorg Chem 2023; 138:106532. [PMID: 37172438 DOI: 10.1016/j.bioorg.2023.106532] [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: 02/07/2023] [Revised: 04/02/2023] [Accepted: 04/05/2023] [Indexed: 05/15/2023]
Abstract
The diazo coupliling reaction of 3- amino pyridine with coumarin in water medium produces water soluble 6-[3-pyridyl]azocoumarin. The synthesised compound has been fully charecterised by IR, NMR, and Mass spectroscopy. The frontier molecular orbital calculations reveal that 6-[3-pyridyl]azocoumarin is more biologically and chemically active in comparison to coumarin. The cytotoxicity evaluation confirms that 6-[3-pyridyl]azocoumarin is more active than coumarin against human brain glioblastoma cell lines, LN-229 with IC50 value 9.09 μM (IC50 value for coumarin is 9.9 μM). The compound (I) has been synthesized by coupling of diazotized solution of 3-aminopyridine with coumarin in an aqueous medium at ∼ pH 10. The structure of the compound (I) has been characterized using UV-vis, IR, NMR, and Mass spectral studies. Frontier molecular orbital calculations reveal that 6-[3-pyridyl]azocoumarin (I) is more active chemically and biologically in comparison to coumarin. IC50 value 9.09 and 9.9 μM of 6-[3-pyridyl]azocoumarin and coumarin respectively obtained in cytotoxicity evaluation confirms the enhanced activity of the synthesized compound against human brain glioblastoma cell lines, LN-229. The synthesized compound also shows strong binding interactions with DNA and BSA in comparison with coumarin. The DNA binding study shows groove binding interaction of the synthesized compound with CT-DNA. The nature of interaction, binding parameters and structural variations of BSA in the presence of the synthesized compound and coumarin have been evaluated using several usefull spectroscopy approaches such as UV -Vis, time resolved and stady state flurescence. The molecular docking interaction has been carried out to justify the experimental binding interaction with DNA and BSA.
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Affiliation(s)
- Putul Karan
- Department of Chemistry, Midnapore City College, Kuturia, Bhadutala, PaschimMedinipur, West Bengal 721129, India; Midnapore City College, Kuturia, Bhadutala, PaschimMedinipur, West Bengal 721129, India
| | - Basudev Shit
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Poulami Panja
- Department of Chemistry, Indian Institute Of Technology, Kharagpur, West Bengal 721302, India
| | - Amina Khatun
- Department of Biological Science, Midnapore City College, Kuturia, Bhadutala, PaschimMedinipur, West Bengal 721129, India; Midnapore City College, Kuturia, Bhadutala, PaschimMedinipur, West Bengal 721129, India
| | - Jagannath Pal
- Department of Chemistry, Midnapore City College, Kuturia, Bhadutala, PaschimMedinipur, West Bengal 721129, India; Midnapore City College, Kuturia, Bhadutala, PaschimMedinipur, West Bengal 721129, India
| | - Sudipta Chakarabarti
- Department of Biological Science, Midnapore City College, Kuturia, Bhadutala, PaschimMedinipur, West Bengal 721129, India; Midnapore City College, Kuturia, Bhadutala, PaschimMedinipur, West Bengal 721129, India
| | - Sutanuka Pal
- SutanukaPal, TCG Life Sciences, Salt Lake Sector V, Kolkata 700091, India
| | - Avishek Ghosh
- Department of Chemistry, Midnapore City College, Kuturia, Bhadutala, PaschimMedinipur, West Bengal 721129, India; Midnapore City College, Kuturia, Bhadutala, PaschimMedinipur, West Bengal 721129, India.
| | - Maidul Hossain
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India.
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5
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Saber S, Al-Qawasmeh RA, Abu-Qatouseh L, Shtaiwi A, Khanfar MA, Al-Soud YA. Novel hybrid motifs of 4-nitroimidazole-piperazinyl tagged 1,2,3-triazoles: Synthesis, crystal structure, anticancer evaluations, and molecular docking study. Heliyon 2023; 9:e19327. [PMID: 37681149 PMCID: PMC10480608 DOI: 10.1016/j.heliyon.2023.e19327] [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: 08/08/2023] [Accepted: 08/18/2023] [Indexed: 09/09/2023] Open
Abstract
4-((4-(1-benzyl-2-methyl-4-nitro-1H-imidazole-5-yl)piperazine-1-yl)methyl)-1-substituted-1H-1,2,3-triazole motifs are designed and synthesized via click chemistry. The reaction of 1-(N1-benzyl- 2-methyl-4-nitro-1H-imidazole- 5-yl)-4-(prop-2-yn-1-yl) piperazine 5 as new scaffold with diverse primary azides to selectively produce 1,4-disubstituted-1,2,3-triazoles 9a-k, 10a-c and 11a-q. Physicochemical methods: when 1H NMR, 13C NMR, and HRMS are utilized to fully characterize all synthesized compounds. X-ray structural determination and analysis for compound 9a is also performed. The newly designed chromophores are assessed for their anti-proliferative potency against three selected human cancer cell lines (MCF-7, HepG2, and PC3), and one normal cell line (Dermal/Fibroblast). Compounds 9g and 9k have shown potent activities against the MCF-7 cell line with IC50 values of (2.00 ± 0.03 μM) and (5.00 ± 0.01 μM) respectively. ADMET studies and Molecular docking investigations are performed on the most active hybrid nitroimidazole derivatives 9g and 9k with 4-hydroxytamoxifen (4-OHT) at the human estrogen receptor alpha (hER) during binding active sites to study the ligand-protein interactions and free binding energies at atomic levels. The triazole ring in the 9g derivative forms a hydrogen bond with Asp58 with distance 3.2 Å. And it is found that polar contact with His231 amino acid residue. In silico assessment of the compounds showed very good pharmacokinetic properties based on their physicochemical values, also the ADMET criteria of the most active hybrid systems are within the acceptable range.
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Affiliation(s)
- SadeekahO.W. Saber
- Department of chemistry, School of Science, The University of Jordan, 11942, Amman, Jordan
- Faculty of Pharmacy, Jerash University, Amman-Irbid international highway, Jerash, 26150, Jordan
| | - Raed A. Al-Qawasmeh
- Department of chemistry, School of Science, The University of Jordan, 11942, Amman, Jordan
- Pure and Applied Chemistry Group, Department of Chemistry, College of Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | | | - Amneh Shtaiwi
- Faculty of Pharmacy, Middle East University, Queen Alia Airport Street, 11610, Amman, Jordan
| | - Monther A. Khanfar
- Department of chemistry, School of Science, The University of Jordan, 11942, Amman, Jordan
- Pure and Applied Chemistry Group, Department of Chemistry, College of Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Yaseen A. Al-Soud
- Chemistry Department, Faculty of Science, University of Al al-Bayt, Al-Mafraq, Jordan
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6
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Ding J, Sun T, Wu H, Zheng H, Wang S, Wang D, Shan W, Ling Y, Zhang Y. Novel Canthin-6-one Derivatives: Design, Synthesis, and Their Antiproliferative Activities via Inducing Apoptosis, Deoxyribonucleic Acid Damage, and Ferroptosis. ACS OMEGA 2023; 8:31215-31224. [PMID: 37663479 PMCID: PMC10468838 DOI: 10.1021/acsomega.3c03358] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 07/26/2023] [Indexed: 09/05/2023]
Abstract
A series of novel canthin-6-one (CO) derivatives (8a-l) were designed and synthesized by introducing different amide side chains at the C-2 position, and their water solubility, antiproliferative activity, and preliminary mechanism were investigated. Most compounds displayed high cytotoxicity exhibiting low-micromolar IC50 values against four human cancer cell lines, especially HT29 cells. Meanwhile, the water solubility of active CO derivatives was significantly improved. Among these compounds, compound 8h with the N-methyl piperazine group exhibiting the highest antiproliferative capability with an IC50 value of 1.0 μM against HT29 cells, which was 8.6-fold lower than that of CO. Furthermore, 8h could upregulate the levels of reactive oxygen species, leading to mitochondrial damage. In addition, 8h could promote cell apoptosis and DNA damage by regulating the expression of apoptosis-associated proteins (Bcl-2 and cleaved-caspase 3) and the DNA damage-associated protein (H2AX). Most importantly, 8h also exerted ferroptosis by reducing the GSH level and GPX4 expression as well as increasing the lipid peroxidation level. Thus, the novel CO derivative 8h with N-methylpiperazine represents a promising anticancer candidate and warrants a more intensive study.
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Affiliation(s)
- Jinfeng Ding
- Department
of Pharmacy, Jiangsu Vocational College
of Medicine, Yancheng 224005, China
- School
of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and
Molecular Drug Target, Nantong University, Nantong 226001, China
| | - Tiantian Sun
- School
of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and
Molecular Drug Target, Nantong University, Nantong 226001, China
- Nantong
Key Laboratory of Small Molecular Drug Innovation, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Hongmei Wu
- School
of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and
Molecular Drug Target, Nantong University, Nantong 226001, China
- Nantong
Key Laboratory of Small Molecular Drug Innovation, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Hongwei Zheng
- School
of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and
Molecular Drug Target, Nantong University, Nantong 226001, China
| | - Sijia Wang
- School
of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and
Molecular Drug Target, Nantong University, Nantong 226001, China
- Nantong
Key Laboratory of Small Molecular Drug Innovation, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Dezhi Wang
- School
of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and
Molecular Drug Target, Nantong University, Nantong 226001, China
- Nantong
Key Laboratory of Small Molecular Drug Innovation, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Wenpei Shan
- School
of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and
Molecular Drug Target, Nantong University, Nantong 226001, China
| | - Yong Ling
- School
of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and
Molecular Drug Target, Nantong University, Nantong 226001, China
- Nantong
Key Laboratory of Small Molecular Drug Innovation, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Yanan Zhang
- School
of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and
Molecular Drug Target, Nantong University, Nantong 226001, China
- Nantong
Key Laboratory of Small Molecular Drug Innovation, School of Pharmacy, Nantong University, Nantong 226001, China
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7
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Alotaibi BS, Hakami MA, Jawaid T, Alshammari N, Binsuwaidan R, Adnan M. Identification of potential Escherichia coli DNA gyrase B inhibitors targeting antibacterial therapy: an integrated docking and molecular dynamics simulation study. J Biomol Struct Dyn 2023:1-12. [PMID: 37608545 DOI: 10.1080/07391102.2023.2249117] [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: 05/16/2023] [Accepted: 08/10/2023] [Indexed: 08/24/2023]
Abstract
The alarming rise in the rate of antibiotic resistance is a matter of significant concern. DNA gyrase B (GyrB), a critical bacterial enzyme involved in DNA replication, transcription, and recombination, has emerged as a promising target for antibacterial agents. Inhibition of GyrB disrupts bacterial DNA replication, leading to cell death, making it an attractive candidate for antibiotic development. Although several classes of antibiotics targeting GyrB are currently in clinical use, the emergence of antibiotic resistance necessitates the exploration of novel inhibitors. In this study, we aimed to identify potential Escherichia coli GyrB inhibitors from a database of phytoconstituents sourced from Indian medicinal plants. Utilizing virtual screening, we performed a rigorous search to identify compounds with the most promising inhibitory properties against GyrB. Two compounds, namely Zizogenin and Cucurbitacin S, were identified based on their favorable drug likeliness and pharmacokinetic profiles. Employing advanced computational techniques, we analyzed the binding interactions of Zizogenin and Cucurbitacin S with the ATP-binding site of GyrB through molecular docking simulations. Both compounds exhibited robust binding interactions, evidenced by their high docking energy scores. To assess the stability of these interactions, we conducted extensive 100 ns molecular dynamics (MD) simulations, which confirmed the stability of Zizogenin and Cucurbitacin S when bound to GyrB. In conclusion, our study highlights Zizogenin and Cucurbitacin S as promising candidates for potential antibacterial agents targeting GyrB. Experimental validation of these compounds is warranted to further explore their efficacy and potential as novel antibiotics to combat antibiotic-resistant bacteria.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Bader S Alotaibi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Quwayiyah, Shaqra University, Riyadh, Saudi Arabia
| | - Mohammed Ageeli Hakami
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Quwayiyah, Shaqra University, Riyadh, Saudi Arabia
| | - Talha Jawaid
- Department of Pharmacology, College of Medicine, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Nawaf Alshammari
- Department of Biology, College of Science, University of Ha'il, Hail, Saudi Arabia
| | - Reem Binsuwaidan
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mohd Adnan
- Department of Biology, College of Science, University of Ha'il, Hail, Saudi Arabia
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8
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Kim SK, Lee JB, Lee HT, Han D, Yoon JW. Development of antisense peptide-peptide nucleic acids against fluoroquinolone-resistant Escherichia coli. J Antimicrob Chemother 2023:dkad203. [PMID: 37390375 DOI: 10.1093/jac/dkad203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 06/14/2023] [Indexed: 07/02/2023] Open
Abstract
BACKGROUND Fluoroquinolones (FQs) are potent and broad-spectrum antibiotics commonly used to treat MDR bacterial infections, but bacterial resistance to FQs has emerged and spread rapidly around the world. The mechanisms for FQ resistance have been revealed, including one or more mutations in FQ target genes such as DNA gyrase (gyrA) and topoisomerase IV (parC). Because therapeutic treatments for FQ-resistant bacterial infections are limited, it is necessary to develop novel antibiotic alternatives to minimize or inhibit FQ-resistant bacteria. OBJECTIVES To examine the bactericidal effect of antisense peptide-peptide nucleic acids (P-PNAs) that can block the expression of DNA gyrase or topoisomerase IV in FQ-resistant Escherichia coli (FRE). METHODS A set of antisense P-PNA conjugates with a bacterial penetration peptide were designed to inhibit the expression of gyrA and parC and were evaluated for their antibacterial activities. RESULTS Antisense P-PNAs, ASP-gyrA1 and ASP-parC1, targeting the translational initiation sites of their respective target genes significantly inhibited the growth of the FRE isolates. In addition, ASP-gyrA3 and ASP-parC2, which bind to the FRE-specific coding sequence within the gyrA and parC structural genes, respectively, showed selective bactericidal effects against FRE isolates. CONCLUSIONS Our results demonstrate the potential of targeted antisense P-PNAs as antibiotic alternatives against FQ-resistance bacteria.
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Affiliation(s)
- Se Kye Kim
- College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Jun Bong Lee
- College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Hyung Tae Lee
- College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Dalmuri Han
- College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Jang Won Yoon
- College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
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9
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Beltrán JF, Yáñez A, Herrera-Belén L, Contreras FP, Blanco JA, Flores-Martin SN, Zamorano M, Farias JG. Antibiotic discovery against Piscirickettsia salmonis using a combined in silico and in vitro approach. Microb Pathog 2023; 180:106122. [PMID: 37094756 DOI: 10.1016/j.micpath.2023.106122] [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: 01/28/2023] [Revised: 04/14/2023] [Accepted: 04/21/2023] [Indexed: 04/26/2023]
Abstract
Piscirickettsia salmonis is one of the main pathogens causing considerable economic losses in salmonid farming. The DNA gyrase of several pathogenic bacteria has been the target of choice for antibiotic design and discovery for years, due to its key function during DNA replication. In this study, we carried out a combined in silico and in vitro approach to antibiotic discovery targeting the GyrA subunit of Piscirickettsia salmonis. The in silico results of this work showed that flumequine (-6.6 kcal/mol), finafloxacin (-7.2 kcal/mol), rosoxacin (-6.6 kcal/mol), elvitegravir (-6.4 kcal/mol), sarafloxacin (-8.3 kcal/mol), orbifloxacin (-7.9 kcal/mol), and sparfloxacin (-7.2 kcal/mol) are docked with good affinities in the DNA binding domain of the Piscirickettsia salmonis GyrA subunit. In the in vitro inhibition assay, it was observed that most of these molecules inhibit the growth of Piscirickettsia salmonis, except for elvitegravir. We believe that this methodology could help to significantly reduce the time and cost of antibiotic discovery trials to combat Piscirickettsia salmonis within the salmonid farming industry.
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Affiliation(s)
- Jorge F Beltrán
- Department of Chemical Engineering, Faculty of Engineering and Science, University of La Frontera, Ave. Francisco Salazar 01145, Temuco, Chile
| | - Alejandro Yáñez
- Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Interdisciplinary Center for Aquaculture Research, Concepción, Chile
| | | | - Fernanda Parraguez Contreras
- Department of Chemical Engineering, Faculty of Engineering and Science, University of La Frontera, Ave. Francisco Salazar 01145, Temuco, Chile
| | - José A Blanco
- Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | | | - Mauricio Zamorano
- Department of Chemical Engineering, Faculty of Engineering and Science, University of La Frontera, Ave. Francisco Salazar 01145, Temuco, Chile
| | - Jorge G Farias
- Department of Chemical Engineering, Faculty of Engineering and Science, University of La Frontera, Ave. Francisco Salazar 01145, Temuco, Chile.
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10
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E. Ali T, K. Alsolimani A, A. Assiri M. 3-[2-Oxo-2H-chromen-3(6)(8)-yl]-1-aryl/heteroaryl-1H-pyrazole-4-carbaldehydes: Synthesis, Reactions and Applications. HETEROCYCLES 2023. [DOI: 10.3987/rev-22-998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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11
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An In-Silico Evaluation of Anthraquinones as Potential Inhibitors of DNA Gyrase B of Mycobacterium tuberculosis. Microorganisms 2022; 10:microorganisms10122434. [PMID: 36557686 PMCID: PMC9783175 DOI: 10.3390/microorganisms10122434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 12/13/2022] Open
Abstract
The World Health Organization reported that tuberculosis remains on the list of the top ten threats to public health worldwide. Among the main causes is the limited effectiveness of treatments due to the emergence of resistant strains of Mycobacterium tuberculosis. One of the main drug targets studied to combat M. tuberculosis is DNA gyrase, the only enzyme responsible for regulating DNA topology in this specie and considered essential in all bacteria. In this context, the present work tested the ability of 2824 anthraquinones retrieved from the PubChem database to act as competitive inhibitors through interaction with the ATP-binding pocket of DNA gyrase B of M. tuberculosis. Virtual screening results based on molecular docking identified 7122772 (N-(2-hydroxyethyl)-9,10-dioxoanthracene-2-sulfonamide) as the best-scored ligand. From this anthraquinone, a new derivative was designed harbouring an aminotriazole moiety, which exhibited higher binding energy calculated by molecular docking scoring and free energy calculation from molecular dynamics simulations. In addition, in these last analyses, this ligand showed to be stable in complex with the enzyme and further predictions indicated a low probability of cytotoxic and off-target effects, as well as an acceptable pharmacokinetic profile. Taken together, the presented results show a new synthetically accessible anthraquinone with promising potential to inhibit the GyrB of M. tuberculosis.
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Moghadam Farid S, Seifinoferest B, Gholamhosseyni M, Larijani B, Mahdavi M. Modern metal-catalyzed and organocatalytic methods for synthesis of coumarin derivatives: a review. Org Biomol Chem 2022; 20:4846-4883. [PMID: 35642609 DOI: 10.1039/d2ob00491g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Coumarin is an important pharmaceutical structural motif, abundantly found in numerous commonly used drugs. Compounds containing this core show a broad spectrum of medicinal properties and biological activities. The increasing importance and wide usages of coumarin derivatives have drawn attention to its synthetic methods, among which metal-catalyzed and organocatalytic methods have proved the most effective. Several metal-catalyzed and/or organocatalytic synthetic strategies for coumarin have been investigated and reported in recent decades. This review focuses on more recent reports on catalysis methods for synthesizing coumarin and coumarin-like structures (including light-mediated methods and nano-catalysts), exploring the mechanistic aspects, simplicity, efficiency, repeatability, and other advantages and disadvantages of these methods.
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Affiliation(s)
- Sara Moghadam Farid
- Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Behnoush Seifinoferest
- Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Maral Gholamhosseyni
- Department of Chemistry, College of Chemistry, University of Tehran, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
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13
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Xu L, Yu J, Jin L, Pan L. Design, Synthesis, and Antifungal Activity of 4-Amino Coumarin Based Derivatives. Molecules 2022; 27:2738. [PMID: 35566096 PMCID: PMC9104767 DOI: 10.3390/molecules27092738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 12/10/2022] Open
Abstract
A series of 30 succinate dehydrogenase inhibitors (SDHIs) of 4-amino coumarin-based derivatives were designed and synthesized. According to the analysis of fungicidal activity in vitro, most of the compounds expressed broad-spectrum antifungal activity against four plant pathogenic fungi (Alternaria alternata, Alternaria solani, Fusarium oxysporum, and Botrytis cinerea) using the mycelium growth inhibition method. The results showed that compounds 3n with the group of 2-ene-3-methyl-butyl and 4e with the group of 2-bromo-1-oxo-hexyl displayed excellent activity against Alternaria alternata and Alternaria solani, with EC50 values of 92~145 μg/mL. Molecular docking showed that the inhibitor 3n was completely locked into the cavity of SDH, forming a conventional hydrogen bond interacting with the amino acid residue TYR58. The present work indicates that these derivatives would serve as novel potential fungicides targeting SDH.
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Affiliation(s)
| | | | - Lu Jin
- College of Chemistry and Chemical Engineering, Xinjiang Agricultural University, Urumqi 830052, China; (L.X.); (J.Y.)
| | - Le Pan
- College of Chemistry and Chemical Engineering, Xinjiang Agricultural University, Urumqi 830052, China; (L.X.); (J.Y.)
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14
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Patil TD, Amrutkar SV. Novel Benzotriazole Acetamide Derivatives as Benzo-Fused Five-
Membered Nitrogen-Containing Heterocycles - In silico Screening, Molecular
Docking, and Synthesis. LETT DRUG DES DISCOV 2022. [DOI: 10.2174/1570180818666211007110509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
DNA gyrase subunit B (1KZN) is an attractive target for antibacterial drug development
because of its role in DNA replication. The fast development of antimicrobial medication resistance
necessitates the quick discovery of new antimicrobial medicines.
Objective:
The goal of this research was to design, synthesize, and discover benzo-fused five-membered
nitrogen-containing heterocycles that bind to DNA gyrase subunit B via molecular docking (1KZN).
Methods:
Based on literature research, 2-(1H-1,2,3-Benzotriazol-1-yl)-N-substituted acetamide was synthesized
using an efficient method. All synthesized compounds were evaluated for antibacterial activity
against three distinct organisms: E. coli, Pseudomonas aeruginosa, Staphylococcus aureus. In a docking
investigation, the chemical interacts with the active site of DNA gyrase subunit B (1KZN), indicating that
it might have antibacterial action.
Conclusion:
According to the findings of this research, the compounds 3d and 3f showed antibacterial
properties. For Staphylococcus aureus, 3c has the potential to be an antibacterial agent.
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Affiliation(s)
- Tejaswini D. Patil
- Department of Pharmaceutical Chemistry, Progressive Education Society’s Modern College of Pharmacy, Nigadi, Pune,
MS, India
| | - Sunil V. Amrutkar
- Department of Pharmaceutical Chemistry, Gokhale Education Society’s Sir Dr. M. S. Gosavi College of
Pharmaceutical Education and Research, Nashik, MS, India
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15
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Virtual screening, optimization and molecular dynamics analyses highlighting a pyrrolo[1,2-a]quinazoline derivative as a potential inhibitor of DNA gyrase B of Mycobacterium tuberculosis. Sci Rep 2022; 12:4742. [PMID: 35304513 PMCID: PMC8933452 DOI: 10.1038/s41598-022-08359-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/28/2022] [Indexed: 11/09/2022] Open
Abstract
Tuberculosis is a disease that remains a significant threat to public health worldwide, and this is mainly due to the selection of strains increasingly resistant to Mycobacterium tuberculosis, its causative agent. One of the validated targets for the development of new antibiotics is DNA gyrase. This enzyme is a type II topoisomerase responsible for regulating DNA topology and, as it is essential in bacteria. Thus, to contribute to the search for new molecules with potential to act as competitive inhibitors at the active site of M. tuberculosis DNA gyrase B, the present work explored a dataset of 20,098 natural products that were filtered using the FAF-Drugs4 server to obtain a total of 5462 structures that were subsequently used in virtual screenings. The consensus score analysis between LeDock and Auto-Dock Vina software showed that ZINC000040309506 (pyrrolo[1,2-a]quinazoline derivative) exhibit the best binding energy with the enzyme. In addition, its subsequent optimization generated the derivative described as PQPNN, which show better binding energy in docking analysis, more stability in molecular dynamics simulations and improved pharmacokinetic and toxicological profiles, compared to the parent compound. Taken together, the pyrrolo[1,2-a]quinazoline derivative described for the first time in the present work shows promising potential to inhibit DNA gyrase B of M. tuberculosis.
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16
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Radwan EM, Elsayed EH, El-Moneim MA, Youssef Moustafa AM. Synthesis and Cytotoxicity Against Human Breast Carcinoma Cell Evaluation of Some New 3,4-Disubstituted Coumarin Derivatives. Pharm Chem J 2022. [DOI: 10.1007/s11094-021-02535-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Design, synthesis of coumarin tethered 1,2,3-triazoles analogues, evaluation of their antimicrobial and α-amylase inhibition activities. J CHEM SCI 2021. [DOI: 10.1007/s12039-021-01997-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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18
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Zhou Q, Xiong FT, Chen P, Xiong BQ, Tang KW, Liu Y. The visible-light-induced acylation/cyclization of alkynoates with acyl oximes for the construction of 3-acylcoumarins. Org Biomol Chem 2021; 19:9012-9020. [PMID: 34610069 DOI: 10.1039/d1ob01568k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A nitrogen-centered radical-mediated carbon-carbon bond cleavage strategy is described to synthesize functionalized 3-acylcoumarins. The strategy is enabled by the visible-light-induced acylation/cyclization of alkynoates with various acyl oxime compounds in acetonitrile. The difunctionalization of carbon-carbon triple bonds precedes the generation of iminyl radicals, which is followed by the formation of acyl radicals. The acyl radicals then attack the carbon-carbon triple bonds, followed by 5-exo-trig cyclization and 1,2-ester migration. This strategy has wide substrate adaptability and good substituent tolerance.
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Affiliation(s)
- Quan Zhou
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Fang-Ting Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Pu Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
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19
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Wang X, Zhou H, Wang X, Lei K, Wang S. Design, Synthesis, and In Vivo and In Silico Evaluation of Coumarin Derivatives with Potential Antidepressant Effects. Molecules 2021; 26:5556. [PMID: 34577028 PMCID: PMC8467986 DOI: 10.3390/molecules26185556] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/02/2021] [Accepted: 09/08/2021] [Indexed: 02/04/2023] Open
Abstract
In this study, a series of coumarin derivatives were designed and synthesized, their structures were characterized using nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS) testing methods. In the pharmacological experiment, two behavior-monitoring methods, the forced swim test (FST) and the tail suspension test (TST), were used to determine the antidepressant activity of coumarin derivatives. Compounds that showed potential activity were analyzed for their effects on 5-hydroxytryptamine (5-HT) levels in the brains of mice. Molecular docking experiments to simulate the possible interaction of these compounds with the 5-HT1A receptor was also be predicted. The results of the pharmacological experiments showed that most coumarin derivatives exhibited significant antidepressant activity. Among these compounds, 7-(2-(4-(4-fluorobenzyl)piperazin-1-yl)-2-oxoethoxy)-2H-chromen-2-one (6i) showed the highest antidepressant activity. The results of the measurement of 5-HT levels in the brains of mice indicate that the antidepressant activity of coumarin derivatives may be mediated by elevated 5-HT levels. The results of molecular docking demonstrated that compound 6i had a significant interaction with amino acids around the active site of the 5-HT1A receptor in the homology model. The physicochemical and pharmacokinetic properties of the target compounds were also predicted using Discovery Studio (DS) 2020 and Chemdraw 14.0.
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Affiliation(s)
- Xuekun Wang
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, China; (H.Z.); (X.W.); (K.L.)
| | | | | | | | - Shiben Wang
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, China; (H.Z.); (X.W.); (K.L.)
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20
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Patel M, Pandey N, Timaniya J, Parikh P, Chauhan A, Jain N, Patel K. Coumarin-carbazole based functionalized pyrazolines: synthesis, characterization, anticancer investigation and molecular docking. RSC Adv 2021; 11:27627-27644. [PMID: 35480680 PMCID: PMC9037808 DOI: 10.1039/d1ra03970a] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 07/27/2021] [Indexed: 12/12/2022] Open
Abstract
A series of novel pyrazoline scaffolds from coumarin-carbazole chalcones were synthesized. We explored various acetyl, amide, and phenyl substituents at the N-1 position of the pyrazoline core. The synthesized compounds were characterized by FTIR, 1H-NMR, 13C-NMR, DEPT, and mass spectroscopic techniques. The in vitro cytotoxicity study of all the synthesized compounds was evaluated against HeLa, NCI-H520 and NRK-52E cell lines. Compounds 4a and 7b became the most active compounds and exhibited their potential to arrest the cell cycle progression and induce apoptosis in both the cell lines. In addition, molecular docking studies revealed a higher binding affinity of both the molecules with CDK2 protein. Based on the obtained results, a comprehensive analysis is warranted to establish the role of compounds 4a and 7b as promising cancer therapeutic agents.
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Affiliation(s)
- Mrugesh Patel
- Department of Advanced Organic Chemistry, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology Gujarat 388421 India
| | - Nilesh Pandey
- Department of Medical Laboratory Technology, Charotar Institute of Paramedical Sciences, Charotar University of Science and Technology Gujarat 388421 India
| | - Jignesh Timaniya
- Department of Advanced Organic Chemistry, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology Gujarat 388421 India
| | - Paranjay Parikh
- Department of Advanced Organic Chemistry, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology Gujarat 388421 India
| | - Alex Chauhan
- Department of Biological Sciences, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology Gujarat 388421 India
| | - Neeraj Jain
- Department of Biological Sciences, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology Gujarat 388421 India
| | - Kaushal Patel
- Department of Advanced Organic Chemistry, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology Gujarat 388421 India
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21
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Carpio Arévalo JM, Amorim JC. An in-silico analysis reveals 7,7'-bializarin as a promising DNA gyrase B inhibitor on Gram-positive and Gram-negative bacteria. Comput Biol Med 2021; 135:104626. [PMID: 34246160 DOI: 10.1016/j.compbiomed.2021.104626] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 10/21/2022]
Abstract
Bacterial diseases are considered by the World Health Organization to be one of the greatest threats to public health worldwide, mainly due to the increasingly frequent resistance to traditional antibiotics. Estimates from the World Bank indicate that the annual global economic impacts of antibiotic resistance will reach US$1.0-3.4 trillion by 2030. With this, the demand for studies aiming at the discovery of new antibiotics or molecules that may play a synergistic role within the spectrum of drug-resistant bacteria is of fundamental importance. In this in silico study, ligands generated from anthraquinones with established antibacterial activity were evaluated as potential inhibitors of the DNA gyrase subunit B of two species of Gram-positive and two Gram-negative bacteria. The main result of molecular docking-based virtual screening reveals several anthraquinones with remarkable binding energies, of which 7,7'-bializarin (ZINC000004783172) exhibited the highest value for all DNA gyrases subunit B studied and formed stable complexes, as evidenced by molecular dynamics simulations. Collectively, the results presented here reveal the potential of this molecule to bind tightly to the active site of DNA gyrases subunit B of Escherichia coli, Salmonella enterica (subtype typhi), Enterococcus faecalis, and Staphylococcus aureus, and therefore represents a promising candidate for further in vitro testing aimed at evaluating its antibacterial effect.
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Affiliation(s)
- Juan Marcelo Carpio Arévalo
- Academic Unit of Health and Wellness, Catholic University of Cuenca, De Las Américas y Humboldt Avenue, Cuenca, Azuay, Ecuador.
| | - Juliana Carolina Amorim
- Academic Unit of Health and Wellness, Catholic University of Cuenca, De Las Américas y Humboldt Avenue, Cuenca, Azuay, Ecuador.
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22
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Rodrigues JM, Cendón B, Gulías M, Mascareñas JL, Queiroz MRP. Rhodium(III)‐Catalyzed Formal Cycloaddition between Thienopyridine/Thienopyrazine Carboxylic Acids and Alkynes, Triggered by C−H Activation. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Juliana M. Rodrigues
- Departamento/Centro de Química Universidade do Minho Campus de Gualtar 4710–057 Braga Portugal
| | - Borja Cendón
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica 15782 Santiago de Compostela Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica 15782 Santiago de Compostela Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica 15782 Santiago de Compostela Spain
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23
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Affiliation(s)
- Abhinav Kumar
- Department of Chemistry Indian Institute of Technology Madras Chennai 600 036 Tamil Nadu India
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24
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Wang M, Jiang S, Liu M, Xu L, Narva S, Awadasseid A, Wu Y, Zhang W. Synthesis and anti-cancer activity of naphthopyrone derivatives. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Aroso RT, Guedes RC, Pereira MM. Synthesis of Computationally Designed 2,5(6)-Benzimidazole Derivatives via Pd-Catalyzed Reactions for Potential E. coli DNA Gyrase B Inhibition. Molecules 2021; 26:molecules26051326. [PMID: 33801316 PMCID: PMC7958342 DOI: 10.3390/molecules26051326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 11/16/2022] Open
Abstract
A pharmacophore model for inhibitors of Escherichia coli’s DNA Gyrase B was developed, using computer-aided drug design. Subsequently, docking studies showed that 2,5(6)-substituted benzimidazole derivatives are promising molecules, as they possess key hydrogen bond donor/acceptor groups for an efficient interaction with this bacterial target. Furthermore, 5(6)-bromo-2-(2-nitrophenyl)-1H-benzimidazole, selected as a core molecule, was prepared on a multi-gram scale through condensation of 4-bromo-1,2-diaminobenzene with 2-nitrobenzaldehyde using a sustainable approach. The challenging functionalization of the 5(6)-position was carried out via palladium-catalyzed Suzuki–Miyaura and Buchwald-Hartwig amination cross-coupling reactions between N-protected-5-bromo-2-nitrophenyl-benzimidazole and aryl boronic acids or sulfonylanilines, with yields up to 81%. The final designed molecules (2-(aminophen-2-yl)-5(6)-substituted-1H-benzimidazoles), which encompass the appropriate functional groups in the 5(6)-position according to the pharmacophore model, were obtained in yields up to 91% after acid-mediated N-boc deprotection followed by Pd-catalyzed hydrogenation. These groups are predicted to favor interactions with DNA gyrase B residues Asn46, Asp73, and Asp173, aiming to promote an inhibitory effect.
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Affiliation(s)
- Rafael T. Aroso
- Coimbra Chemistry Centre, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal;
| | - Rita C. Guedes
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal
- Correspondence: (R.C.G.); (M.M.P.)
| | - Mariette M. Pereira
- Coimbra Chemistry Centre, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal;
- Correspondence: (R.C.G.); (M.M.P.)
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26
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Samanta K, Patra P, Kar GK, Dinda SK, Mahanty DS. Diverse synthesis of pyrrolo/indolo[3,2- c]coumarins as isolamellarin-A scaffolds: a brief update. NEW J CHEM 2021. [DOI: 10.1039/d0nj06267g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This review presents a different synthetic approach of pyrrolo/indolo[3,2-c]coumarins via classical reactions including metal-catalyzed and green reaction protocols.
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Affiliation(s)
- Khokan Samanta
- Department of Chemistry
- Haldia Government College
- Purba Medinipur
- India
| | - Prasanta Patra
- Department of Chemistry
- Jhargram Raj College
- Jhargram 721507
- India
| | | | - Shaishab Kumar Dinda
- Department of Chemistry
- Government General Degree College Datan II
- Paschim Medinipur
- India
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27
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Patra P, Kar GK. The synthesis, biological evaluation and fluorescence study of chromeno[4,3- b]pyridin/quinolin-one derivatives, the backbone of natural product polyneomarline C scaffolds: a brief review. NEW J CHEM 2021. [DOI: 10.1039/d0nj04761a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review presents the synthesis, biological and fluorescence study of chromeno[4,3-b]pyridin/quinolin-ones via classical reactions including metal-catalyzed and green reaction protocols.
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Affiliation(s)
- Prasanta Patra
- Department of Chemistry
- Jhargram Raj College
- Jhargram 721507
- India
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28
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Patra P. 4-Chloro-3-formylcoumarin as a multifaceted building block for the development of various bio-active substituted and fused coumarin heterocycles: a brief review. NEW J CHEM 2021. [DOI: 10.1039/d1nj02755g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This review presents the diverse synthesis of 3,4-substituted coumarins and 5-, 6- and 7-membered ring fused coumarins using 4-chloro-3-formylcoumarin as the precursor via classical reactions including metal-catalyzed and green reaction protocols.
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Affiliation(s)
- Prasanta Patra
- Department of Chemistry
- Jhargram Raj College
- Jhargram 721507
- India
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29
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Acevedo-Quiroz M, Mora-Candelario O, Leyva-Vázquez M, Mendoza-Catalán M, Álvarez L, Antunez-Mojica M, Ortiz-Ortiz J. Gas chromatography coupled with mass analysis phytochemical profiling, antiproliferative and antimigratory effect of tagetes lucida leaves extracts on cervical cancer cell lines. Pharmacogn Mag 2021. [DOI: 10.4103/pm.pm_49_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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30
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Chandrakar K, Patel JL, Mahapatra SP, Penta S. Recent Advances in On-Water Multicomponent Synthesis of Coumarin Derivatives. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999201013164825] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Coumarin-linked heterocycles represent privileged structural subunits and are welldistributed
in naturally occurring compounds with immense biological activities. Multicomponent
reactions (MCRs) are becoming a valuable tool for synthesizing structurally diverse
molecular entities. On the other hand, the last year has seen a tremendous outburst in modifying
chemical processes to make them sustainable for the betterment of our environment. The
application of aqueous medium in organic synthesis is fulfilling some of the goals of ‘green
and sustainable chemistry’ as it has some advantages over the traditional synthetic methods in
terms of reaction rates, yields, purity of the products, product selectivity, etc. Hence, significant
progress has been made in recent years. In the present review, we provide an overview of
the recent developments of multicomponent synthesis of biologically relevant coumarin
linked and fused heterocyclic compounds carried out from 2015 till today in an aqueous medium.
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Affiliation(s)
- Komal Chandrakar
- Department of Chemistry, National Institute of Technology Raipur, G. E. Road, Raipur-492010, Chhattisgarh, India
| | - Jeevan Lal Patel
- Department of Chemistry, National Institute of Technology Raipur, G. E. Road, Raipur-492010, Chhattisgarh, India
| | - S. P. Mahapatra
- Department of Chemistry, National Institute of Technology Raipur, G. E. Road, Raipur-492010, Chhattisgarh, India
| | - Santhosh Penta
- Department of Chemistry, National Institute of Technology Raipur, G. E. Road, Raipur-492010, Chhattisgarh, India
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A review: Biologically active 3,4-heterocycle-fused coumarins. Eur J Med Chem 2020; 212:113034. [PMID: 33276991 DOI: 10.1016/j.ejmech.2020.113034] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/15/2020] [Accepted: 11/15/2020] [Indexed: 12/17/2022]
Abstract
The combination of heterocycles offers a new opportunity to create novel multicyclic compounds having improved biological activity. Coumarins are ubiquitous natural heterocycle widely adopted in the design of various biologically active compounds. Fusing different heterocycles with coumarin ring is one of the interesting approaches to generating novel hybrid molecules having highlighted biological activities. In the efforts to develop heterocyclic-fused coumarins, a wide range of 3,4-heterocycle-fused coumarins have been introduced bearing outstanding biological activity. The effect of heterocycles annulation at 3,4-positions of coumarin ring on the biological activity of the target structures were discussed. This review focuses on the important progress of 3,4-heterocycle-fused coumarins providing better insight for medicinal chemists on the design and preparation of biologically active heterocycle-fused coumarins with a significant therapeutic effect in the future.
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Zhang S, Tan X, Liang C, Zhang W. Design, synthesis, and antifungal evaluation of novel
coumarin‐pyrrole
hybrids. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4180] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Shuguang Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing China
| | - Xin Tan
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing China
| | - Chaogen Liang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing China
| | - Weihua Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing China
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Rossi R, Ciofalo M. An Updated Review on the Synthesis and Antibacterial Activity of Molecular Hybrids and Conjugates Bearing Imidazole Moiety. Molecules 2020; 25:molecules25215133. [PMID: 33158247 PMCID: PMC7663458 DOI: 10.3390/molecules25215133] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 01/28/2023] Open
Abstract
The rapid growth of serious infections caused by antibiotic resistant bacteria, especially the nosocomial ESKAPE pathogens, has been acknowledged by Governments and scientists and is one of the world's major health problems. Various strategies have been and are currently investigated and developed to reduce and/or delay the bacterial resistance. One of these strategies regards the design and development of antimicrobial hybrids and conjugates. This unprecedented critical review, in which our continuing interest in the synthesis and evaluation of the bioactivity of imidazole derivatives is testified, aims to summarise and comment on the results obtained from the end of the 1900s until February 2020 in studies conducted by numerous international research groups on the synthesis and evaluation of the antibacterial properties of imidazole-based molecular hybrids and conjugates in which the pharmacophoric constituents of these compounds are directly covalently linked or connected through a linker or spacer. In this review, significant attention was paid to summarise the strategies used to overcome the antibiotic resistance of pathogens whose infections are difficult to treat with conventional antibiotics. However, it does not include literature data on the synthesis and evaluation of the bioactivity of hybrids and conjugates in which an imidazole moiety is fused with a carbo- or heterocyclic subunit.
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Affiliation(s)
- Renzo Rossi
- Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via G. Moruzzi, 3, I-56124 Pisa, Italy
- Correspondence: (R.R.); (M.C.)
| | - Maurizio Ciofalo
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, University of Palermo, Viale delle Scienze, Edificio 4, I-90128 Palermo, Italy
- Correspondence: (R.R.); (M.C.)
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García S, Mercado-Sánchez I, Bahena L, Alcaraz Y, García-Revilla MA, Robles J, Santos-Martínez N, Ordaz-Rosado D, García-Becerra R, Vazquez MA. Design of Fluorescent Coumarin-Hydroxamic Acid Derivatives as Inhibitors of HDACs: Synthesis, Anti-Proliferative Evaluation and Docking Studies. Molecules 2020; 25:molecules25215134. [PMID: 33158250 PMCID: PMC7662212 DOI: 10.3390/molecules25215134] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 10/20/2020] [Accepted: 10/28/2020] [Indexed: 01/02/2023] Open
Abstract
Coumarin-hydroxamic acid derivatives 7a-k were herein designed with a dual purpose: as antiproliferative agents and fluorescent probes. The compounds were synthesized in moderate yields (30-87%) through a simple methodology, biological evaluation was carried out on prostate (PC3) and breast cancer (BT-474 and MDA-MB-231) cell lines to determine the effects on cell proliferation and gene expression. For compounds 7c, 7e, 7f, 7i and 7j the inhibition of cancer cell proliferation was similar to that found with the reference compound at a comparable concentration (10 μM), in addition, their molecular docking studies performed on histone deacetylases 1, 6 and 8 showed strong binding to the respective active sites. In most cases, antiproliferative activity was accompanied by greater levels of cyclin-dependent kinase inhibitor p21, downregulation of the p53 tumor suppressor gene, and regulation of cyclin D1 gene expression. We conclude that compounds 7c, 7e, 7f, 7i and 7j may be considered as potential anticancer agents, considering their antiproliferative properties, their effect on the regulation of the genes, as well as their capacity to dock to the active sites. The fluorescent properties of compound 7j and 7k suggest that they can provide further insight into the mechanism of action.
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Affiliation(s)
- Santiago García
- Departamento de Química, Universidad de Guanajuato, Guanajuato, Gto. 36050, Mexico; (S.G.); (I.M.-S.); (L.B.); (M.A.G.-R.)
| | - Itzel Mercado-Sánchez
- Departamento de Química, Universidad de Guanajuato, Guanajuato, Gto. 36050, Mexico; (S.G.); (I.M.-S.); (L.B.); (M.A.G.-R.)
| | - Luis Bahena
- Departamento de Química, Universidad de Guanajuato, Guanajuato, Gto. 36050, Mexico; (S.G.); (I.M.-S.); (L.B.); (M.A.G.-R.)
| | - Yolanda Alcaraz
- Departamento de Farmacia, Universidad de Guanajuato, Guanajuato, Gto. 36050, Mexico; (Y.A.); (J.R.)
| | - Marco A. García-Revilla
- Departamento de Química, Universidad de Guanajuato, Guanajuato, Gto. 36050, Mexico; (S.G.); (I.M.-S.); (L.B.); (M.A.G.-R.)
| | - Juvencio Robles
- Departamento de Farmacia, Universidad de Guanajuato, Guanajuato, Gto. 36050, Mexico; (Y.A.); (J.R.)
| | - Nancy Santos-Martínez
- Departamento de Biología de la Reproducción Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México 14080, Mexico; (N.S.-M.); (D.O.-R.)
| | - David Ordaz-Rosado
- Departamento de Biología de la Reproducción Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México 14080, Mexico; (N.S.-M.); (D.O.-R.)
| | - Rocío García-Becerra
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Miguel A. Vazquez
- Departamento de Química, Universidad de Guanajuato, Guanajuato, Gto. 36050, Mexico; (S.G.); (I.M.-S.); (L.B.); (M.A.G.-R.)
- Correspondence: ; Tel.: +52-473-732-0006 (ext. 1419)
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Yang T, Ding X, Zhan X, Weng Y. Pd‐Catalyzed Cross‐Dehydrogenative Coupling of 3‐Benzoyl Substituted Coumarins: Efficient Access to Indeno[2,1‐
c
]chromene‐6,7‐diones. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ting Yang
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou Zhejiang 310014 China
| | - Xingxing Ding
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou Zhejiang 310014 China
| | - Xuecheng Zhan
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou Zhejiang 310014 China
| | - Yiyi Weng
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou Zhejiang 310014 China
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Konidala SK, Kotra V, Danduga RCSR, Kola PK. Coumarin-chalcone hybrids targeting insulin receptor: Design, synthesis, anti-diabetic activity, and molecular docking. Bioorg Chem 2020; 104:104207. [PMID: 32947135 DOI: 10.1016/j.bioorg.2020.104207] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 07/25/2020] [Accepted: 08/24/2020] [Indexed: 12/19/2022]
Abstract
Four series of thirteen new coumarin-chalcone hybrids (DPCU 1-13, DPCT 1-13, DCCU 1-13 and DCCT 1-13) were designed and synthesized using Biginelli synthesis, Pechmann condensation, Acetylation, and Claisen-Schmidt reactions. Synthesized compounds were tested for insulin receptor in silico docking studies (PDB ID: 1IR3); DCCU 13 and DCCT 13 derivatives received the lowest docking score; Streptozocin (STZ) and Nicotinamide (NA) induced type II diabetes was tested for their anti-diabetic activity in rats. In vivo tests suggested that fasting blood glucose levels of animals treated with DCCU 13 (30 mg/kg body weight) and DCCT 13 (30 mg/kg body weight) were significantly and moderately suppressed, respectively, relative to fasting blood glucose levels of diabetic control animals. Similarly, therapy with DCCU 13 and DCCT 13 attenuated oxidative stress parameters such as lipid peroxidation (MDA), superoxide dismutase (SOD) and increased the glutathione (GSH) in the liver and pancreas in a dose-dependent manner. In comparison, therapy with DCCU 13 (30 mg/kg body weight) mitigated alterations in the histological architecture of the liver and pancreatic tissue. These results indicated that the hybrids DUUC 13 and DCCT 13 at 30 mg/kg had an anti-hyperglycemic and antioxidant impact on STZ + NA mediated type II diabetes in rats. Further detailed work could be required to determine the precise mode of action of the anti-diabetic behavior of hybrids.
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Affiliation(s)
- Sathish Kumar Konidala
- University College of Pharmaceutical Sciences, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, A.P. 522510, India; School of Pharmaceutical Sciences, Vignan's Foundation for Science, Technology, and Research, Guntur, Andhra Pradesh 522213, India
| | - Vijay Kotra
- Faculty of Pharmacy, Quest International University Perak (QIUP), Ipoh, Malaysia
| | | | - Phani Kumar Kola
- University College of Pharmaceutical Sciences, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, A.P. 522510, India.
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Pasricha S, Gahlot P. Synthetic Strategies and Biological Potential of Coumarin-Chalcone Hybrids: A New Dimension to Drug Design. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200219091830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Privileged scaffolds are ubiquitous as effective templates in drug discovery regime.
Natural and synthetically derived hybrid molecules are one such attractive scaffold
for therapeutic agent development due to their dual or multiple modes of action, minimum
or no side effects, favourable pharmacokinetics and other advantages. Coumarins and
chalcone are two important classes of natural products affording diverse pharmacological
activities which make them ideal templates for building coumarin-chalcone hybrids as effective
biological scaffold for drug discovery research. Provoked by the promising medicinal
application of hybrid molecules as well as those of coumarins and chalcones, the
medicinal chemists have used molecular hybridisation strategy to report dozens of coumarin-
chalcone hybrids with a wide spectrum of biological properties including anticancer,
antimicrobial, antimalarial, antioxidant, anti-tubercular and so on. The present review provides a systematic
summary on synthetic strategies, biological or chemical potential, SAR studies, some mechanisms of action
and some plausible molecular targets of synthetic coumarin-chalcone hybrids published from 2001 till
date. The review is expected to assist medicinal chemists in the effective and successful development of coumarin-
chalcone hybrid based drug discovery regime.
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Affiliation(s)
- Sharda Pasricha
- Department of Chemistry, Sri Venkateswara College, University of Delhi, P.O. Box: 110021, New Delhi, India
| | - Pragya Gahlot
- Department of Chemistry, Sri Venkateswara College, University of Delhi, P.O. Box: 110021, New Delhi, India
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Dinparast L, Dastmalchi S. A QSAR Study on the 4-Substituted Coumarins as Potent Tubulin Polymerization Inhibitors. Adv Pharm Bull 2020; 10:271-277. [PMID: 32373496 PMCID: PMC7191237 DOI: 10.34172/apb.2020.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 10/13/2019] [Accepted: 11/09/2019] [Indexed: 12/01/2022] Open
Abstract
Purpose: Despite the discovery and synthesis of several anticancer drugs, cancer is still a major life threatening incident for human beings after cardiovascular diseases. Toxicity, severe side effects, and drug resistance are serious problems of available commercial anticancer drugs. Coumarins are synthetic and natural heterocycles that show promising antiproliferative activities against various tumors. The aim of this research is to computationally study the coumarin derivatives in order to develop reliable quantitative structure-activity relationship (QSAR) models for predicting their anticancer activities.
Methods: A data set of thirty one coumarin analogs with significant antiproliferative activities toward HepG2 cells were selected from the literature. The molecular descriptors for these compounds were calculated using Dragon, HyperChem, and ACD/Labs programs. Genetic algorithm (GA) accompanied by multiple linear regression (MLR) for simultaneous feature selection and model development was employed for generating the QSAR models.
Results: Based on the obtained results, the developed linear QSAR models with three and four descriptors showed good predictive power with r2 values of 0.670 and 0.692, respectively. Moreover, the calculated validation parameters for the models confirmed the reliability of the QSAR models.
Conclusion: The findings of the current study could be useful for the design and synthesis of novel anticancer drugs based on coumarin structure.
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Affiliation(s)
- Leila Dinparast
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Siavoush Dastmalchi
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Pharmacy, Near East University, POBOX: 99138, Nicosia, North Cyprus, Mersin 10, Turkey
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Bayazeed A, Alshehrei F, Muhammad ZA, Al‐Fahemi J, El‐Metwaly N, Farghaly TA. Synthesis of Coumarin‐Analogues: Analytical, Spectral, Conformational, MOE‐Docking and Antimicrobial Studies. ChemistrySelect 2020. [DOI: 10.1002/slct.201904724] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Abrar Bayazeed
- Chemistry DepartmentFaculty of Applied SciencesUmm Al-Qura University Makkah Saudi Arabia
| | - Fatimah Alshehrei
- Department of BiologyJumom collegeUmm Al-Qura University P.O Box 7388 Makkah 21955 Saudi Arabia
| | - Zeinab A. Muhammad
- National Organization for Drug Control and Research (NODCAR) P.O. Box 29 Cairo Egypt
| | - Jabir Al‐Fahemi
- Chemistry DepartmentFaculty of Applied SciencesUmm Al-Qura University Makkah Saudi Arabia
| | - Nashwa El‐Metwaly
- Chemistry DepartmentFaculty of Applied SciencesUmm Al-Qura University Makkah Saudi Arabia
- Chemistry DepartmentFaculty of ScienceMansoura University Mansoura Egypt
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Celikezen F, Orek C, Parlak A, Sarac K, Turkez H, Tozlu ÖÖ. Synthesis, structure, cytotoxic and antioxidant properties of 6-ethoxy-4-methylcoumarin. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127577] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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41
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Zhao L, Zhang J, Liu T, Mou H, Wei C, Hu D, Song B. Design, Synthesis, and Antiviral Activities of Coumarin Derivatives Containing Dithioacetal Structures. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:975-981. [PMID: 31891504 DOI: 10.1021/acs.jafc.9b06861] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, a series of coumarin derivatives containing dithioacetals were synthesized, characterized, and assessed for their anti-tobacco mosaic virus (TMV) activities. Biological tests showed that most of the title compounds exhibited significant anti-TMV biological activities; in particular, compound b21 showed good inactivating activity anti-TMV, with an EC50 of 54.2 mg/L, superior to that of ribavirin (134.2 mg/L). Transmission electron microscopy analyses showed that compound 21 severely ruptured TMV particles. The interaction of compound b21 with TMV coat protein (TMV CP) was investigated using microscale thermophoresis and molecular docking. Compound b21 exhibited a strong binding ability to TMV CP, with a value of 2.9 μM, superior to ribavirin.
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Affiliation(s)
- Lei Zhao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District, Guiyang 550025 , China
| | - Jian Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District, Guiyang 550025 , China
| | - Ting Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District, Guiyang 550025 , China
| | - Honglan Mou
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District, Guiyang 550025 , China
| | - Chunle Wei
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District, Guiyang 550025 , China
| | - Deyu Hu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District, Guiyang 550025 , China
| | - Baoan Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District, Guiyang 550025 , China
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Rizzk YW, El-Deen IM, Mohammed FZ, Abdelhamid MS, Khedr AI. In Vitro Antitumor Evaluation of Some Hybrid Molecules Containing Coumarin and Quinolinone Moieties. Anticancer Agents Med Chem 2020; 19:2010-2018. [DOI: 10.2174/1871520619666190930143856] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/02/2019] [Accepted: 07/31/2019] [Indexed: 02/08/2023]
Abstract
Background:
Hybrid molecules furnished by merging two or more pharmacophores is an emerging
concept in the field of medicinal chemistry and drug discovery. Currently, coumarin hybrids have attracted the
keen attention of researchers to discover their therapeutic capability against cancer.
Objective:
The present study aimed to evaluate the in vitro antitumor activity of a new series of hybrid molecules
containing coumarin and quinolinone moieties 4 and 5 against four cancer cell lines.
Materials and Methods:
A new series of hybrid molecules containing coumarin and quinolinone moieties, 4a-c
and 5a-c, were synthesized and screened for their cytotoxicity against prostate PC-3, breast MCF-7, colon HCT-
116 and liver HepG2 cancer cell lines as well as normal breast Hs-371 T.
Results:
All the synthesized compounds were assessed for their in vitro antiproliferative activity against four
cancer cell lines and several compounds were found to be active. Further in vitro cell cycle study of compounds
4a and 5a revealed MCF-7 cells arrest at G2 /M phase of the cell cycle profile and induction apoptosis at pre-G1
phase. The apoptosis-inducing activity was evidenced by up-regulation of Bax protein together with the downregulation
of the expression of Bcl-2 protein. The mechanism of cytotoxic activity of compounds 4a and 5a
correlated to its topoisomerase II inhibitory activity.
Conclusion:
Hybrid molecules containing coumarin and quinolinone moieties represents a scaffold for further
optimization to obtain promising anticancer agents.
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Affiliation(s)
- Youstina W. Rizzk
- Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt
| | - Ibrahim M. El-Deen
- Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt
| | - Faten Z. Mohammed
- Chemistry Department (Biochemistry Branch), Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Moustafa S. Abdelhamid
- Chemistry Department (Biochemistry Branch), Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Amgad I.M. Khedr
- Pharmacognosy Department, Faculty of Pharmacy, Port Said University, Port Said, Egypt
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Sheikhhosseini E. One-pot Synthesis of Novel bisChroman-3, 4-dicarboxamides Containing Lipophilic Spacers. ORG PREP PROCED INT 2020. [DOI: 10.1080/00304948.2019.1697610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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44
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Lakshmi SR, Singh V, Chowhan LR. Highly efficient catalyst-free domino conjugate addition, decarboxylation and esterification/amidation of coumarin carboxylic acid/esters with pyrazolones: a green chemistry approach. RSC Adv 2020; 10:13866-13871. [PMID: 35492966 PMCID: PMC9051535 DOI: 10.1039/d0ra01906b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/13/2020] [Indexed: 01/29/2023] Open
Abstract
Tandem conjugate addition, decarboxylation and esterification/amidation of coumarin 3-carboxylic acid derivatives with pyrazolones have been developed.
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Affiliation(s)
- Shanta Raj Lakshmi
- Centre for Applied Chemistry
- Central University of Gujarat
- Gandhinagar
- India
| | - Vipin Singh
- Centre for Applied Chemistry
- Central University of Gujarat
- Gandhinagar
- India
| | - L. Raju Chowhan
- Centre for Applied Chemistry
- Central University of Gujarat
- Gandhinagar
- India
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He X, Li R, Xie M, Duan J, Tang Q, Shang Y. Copper-catalyzed cascade three-component azide–alkyne cycloaddition/condensation/transesterification: easy access to 3-triazolylcoumarins. NEW J CHEM 2020. [DOI: 10.1039/d0nj02100h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel and efficient strategy has been developed for the synthesis of 3-triazolylcoumarins in a one-pot, copper-catalyzed multicomponent reaction involving a cascade reaction of salicylaldehydes, ethyl 2-azidoacetate, and arylacetylenes.
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Affiliation(s)
- Xinwei He
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Ruxue Li
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Mengqing Xie
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Jiahui Duan
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Qiang Tang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
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46
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Synthesis and biological evaluation of novel coumarin-chalcone derivatives containing urea moiety as potential anticancer agents. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.10.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Imrankhan M, Shivashankar K. Iodine catalyzed one-pot four component synthesis of coumarinyl phosphoramidates via sequential addition of reactants. NEW J CHEM 2020. [DOI: 10.1039/d0nj04445h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
An unprecedented synthetic route for the preparation of a library of novel coumarinyl phosphoramidate derivatives via iodine catalysed one-pot four component reactions of ethyl 4-bromo-3-oxo-alkanoate, sodium azide, trialkyl phosphites, and phenols in ethanol is reported.
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Affiliation(s)
- Mohammed Imrankhan
- P. G. Department of Chemistry
- Central College Campus
- Bangalore University
- Bangalore
- India
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Patel M, Patel K. Naphthalene substituted benzo[c]coumarins: Synthesis, characterization and evaluation of antibacterial activity and cytotoxicity. HETEROCYCL COMMUN 2019. [DOI: 10.1515/hc-2019-0024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractNovel congeners of naphthalene substituted benzo[c]coumarins (2a-f) were synthesized by reaction of various 3-coumarinoyl methyl pyridinium bromide salts (1a-d) with a selected set of acetyl naphthalene in the presence of sodium acetate in refluxing glacial acetic acid. Structures of the synthesized compounds were confirmed by elemental analysis and by various spectroscopic techniques such as 1H-NMR, 13C-NMR, DEPT, and MS spectral data. Synthesised compounds were screened for antibacterial activity and cytotoxicity against different human cancer cell lines including cervix cancer (HeLa), breast cancer (MCF-7) and lung cancer (A549) using tetrazolium dye 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cell viability assay. Although with varying degrees, a significant growth inhibitory and cytotoxic effects were observed on all three cancer cell lines. Compounds 2b and 2e showed significant growth inhibitory and cytotoxicity against aforementioned cancer cell lines.
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Affiliation(s)
- Mrugesh Patel
- Department of Advanced Organic Chemistry, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Gujarat 388421, India
| | - Kaushal Patel
- Department of Advanced Organic Chemistry, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Gujarat 388421, India
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Singh A, Singh JV, Rana A, Bhagat K, Gulati HK, Kumar R, Salwan R, Bhagat K, Kaur G, Singh N, Kumar R, Singh H, Sharma S, Bedi PMS. Monocarbonyl Curcumin-Based Molecular Hybrids as Potent Antibacterial Agents. ACS OMEGA 2019; 4:11673-11684. [PMID: 31460274 PMCID: PMC6682034 DOI: 10.1021/acsomega.9b01109] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 06/14/2019] [Indexed: 05/22/2023]
Abstract
Keeping in view various pharmacological attributes of curcumin, coumarin, and isatin derivatives, triazole-tethered monocarbonyl curcumin-coumarin and curcumin-isatin molecular hybrids have been synthesized and evaluated for their antibacterial potential against Gram-positive (Enterococcus faecalis and Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa and Escherichia coli) human pathogenic bacterial strains. Among all hybrid molecules, A-4 and B-38 showed the most potent antibacterial activity with inhibition zones of 29 and 31 mm along with MIC values of 12.50 and 6.25 μg/mL, respectively. Structure-activity relationship that emerged from biological data revealed that the two-carbon alkyl chain between triazole and coumarin/isatin moiety is well tolerable for the activity. Bromo substitution at the fifth position of isatin, para-cholo substitution in the case of curcumin-isatin, and para-methoxy in the case of curcumin-coumarin hybrids on ring A of curcumin are most suitable groups for the antibacterial activity. Various types of binding interactions of A-4 and B-38 within the active site of dihydrofolate reductase (DHFR) of S. aureus are also streamlined by molecular modeling studies, suggesting their capability in completely blocking DHFR.
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Affiliation(s)
- Atamjit Singh
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Jatinder Vir Singh
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Abhineet Rana
- EMC Group
of Hospital, Green Avenue, Amritsar, Punjab 143001, India
| | - Kavita Bhagat
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Harmandeep Kaur Gulati
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Raman Kumar
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Rajan Salwan
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Kajal Bhagat
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Gurinder Kaur
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Navjot Singh
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Randeep Kumar
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Harbinder Singh
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
- E-mail: (H.S.)
| | - Sahil Sharma
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
- E-mail: (S.S.)
| | - Preet Mohinder Singh Bedi
- Department of Pharmaceutical
Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
- E-mail: (P.M.S.B.)
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Bhagat K, Bhagat J, Gupta MK, Singh JV, Gulati HK, Singh A, Kaur K, Kaur G, Sharma S, Rana A, Singh H, Sharma S, Singh Bedi PM. Design, Synthesis, Antimicrobial Evaluation, and Molecular Modeling Studies of Novel Indolinedione-Coumarin Molecular Hybrids. ACS OMEGA 2019; 4:8720-8730. [PMID: 31459961 PMCID: PMC6648594 DOI: 10.1021/acsomega.8b02481] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 01/03/2019] [Indexed: 05/14/2023]
Abstract
Keeping in view various pharmacological attributes of indole and coumarin derivatives, a new series of indolindione-coumarin molecular hybrids was rationally designed and synthesized. All synthesized hybrid molecules were evaluated for their antimicrobial potential against Gram-negative bacterial strains (Escherichia coli and Salmonella enterica), Gram-positive bacterial strains (Staphylococcus aureus and Mycobacterium smegmatis), and four fungal strains (Candida albicans, Alternaria mali, Penicillium sp., and Fusarium oxysporum) by using the agar gel diffusion method. Among all synthetics, compounds K-1 and K-2 were found to be the best antimicrobial agents with the minimum inhibitory concentration values of 30 and 312 μg/mL, against Penicillium sp. and S. aureus, respectively. The biological data revealed some interesting facts about the structure-activity relationship which state that the electronic environment on the indolinedione moiety and carbon chain length between indolinedione and triazole moieties considerably affect the antimicrobial potential of the synthesized hybrids. Various types of binding interactions of K-2 within the active site of S. aureus dihydrofolate reductase were also streamlined by molecular modeling studies, which revealed the possible mechanism for potent antibacterial activity of the compound.
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Affiliation(s)
- Kavita Bhagat
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Jyoti Bhagat
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Manish Kumar Gupta
- TERI-Deakin Nanobiotechnology Centre, The Energy and Resources Institute, TERI Gram, Gual Pahari, Gurugram, Haryana 122001, India
| | - Jatinder Vir Singh
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Harmandeep Kaur Gulati
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Atamjit Singh
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Kamalpreet Kaur
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Gurinder Kaur
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Shally Sharma
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Abhineet Rana
- EMC Group of Hospital, Green Avenue, Amritsar, Punjab 143001, India
| | - Harbinder Singh
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
- E-mail: . Phone: +919463148367 (H.S.)
| | - Sahil Sharma
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
- E-mail: (S.S.)
| | - Preet Mohinder Singh Bedi
- Department
of Pharmaceutical Sciences and Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
- E-mail: . Phone: +919815698249 (P.M.S.B.)
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