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Sumran G, Jain N, Kumar P, Aggarwal R. Trifluoromethyl-β-dicarbonyls as Versatile Synthons in Synthesis of Heterocycles. Chemistry 2024; 30:e202303599. [PMID: 38055226 DOI: 10.1002/chem.202303599] [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: 10/31/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/07/2023]
Abstract
Trifluoromethyl group relishes a privileged position in the realm of medicinal chemistry because its incorporation into organic molecules often enhances the bioactivity by altering pharmacological profile of molecule. Trifluoromethyl-β-dicarbonyls have emerged as pivotal building blocks in synthetic organic chemistry due to their facile accessibility, stability and remarkable versatility. Owing to presence of nucleophilic and electrophilic sites, they offer multifunctional sites for the reaction. This review covers a meticulous exploration of their multifaceted role, encompassing an in-depth analysis of mechanism, extensive scope, limitations and wide-ranging applications in diverse organic synthesis, covering the literature from the 21st century. This comprehensive review encapsulates the applications of trifluoromethyl-β-dicarbonyls and their synthetic equivalents as precursors of complex and diverse heterocyclic scaffolds, fused heterocycles and spirocyclic compounds having medicinal and material importance. Their potent synthetic utility in cyclocondensation reactions with binucleophiles, cycloaddition reactions, C-C bond formations, asymmetric multicomponent reactions using classical/solvent-free/catalytic synthesis have been presented. Influence of unsymmetrical trifluoromethyl-β-diketones on regioselectivity of transformation is also reviewed. This review will benefit the synthetic and pharmaceutical communities to explore trifluoromethyl-β-dicarbonyls as trifluoromethyl building blocks for fabrication of heterocyclic scaffolds having implementation into drug discovery programs in the imminent future.
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Affiliation(s)
- Garima Sumran
- Department of Chemistry, D. A. V. College (Lahore), Ambala City, 134 003, Haryana, India
| | - Naman Jain
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119, India
| | - Prince Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119, India
| | - Ranjana Aggarwal
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119, India
- CSIR-National Institute of Science Communication and Policy Research, New Delhi, 110012, India
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2
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Synthesis and SAR of phenylazoles, active against Staphylococcus aureus Newman. Chem Heterocycl Compd (N Y) 2023. [DOI: 10.1007/s10593-023-03151-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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3
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Mahía A, Peña-Díaz S, Navarro S, José Galano-Frutos J, Pallarés I, Pujols J, Díaz-de-Villegas MD, Gálvez JA, Ventura S, Sancho J. Design, synthesis and structure-activity evaluation of novel 2-pyridone-based inhibitors of α-synuclein aggregation with potentially improved BBB permeability. Bioorg Chem 2021; 117:105472. [PMID: 34775206 DOI: 10.1016/j.bioorg.2021.105472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 10/20/2021] [Accepted: 11/03/2021] [Indexed: 01/07/2023]
Abstract
The treatment of Parkinson's disease (PD), the second most common neurodegenerative human disorder, continues to be symptomatic. Development of drugs able to stop or at least slowdown PD progression would benefit several million people worldwide. SynuClean-D is a low molecular weight 2-pyridone-based promising drug candidate that inhibits the aggregation of α-synuclein in human cultured cells and prevents degeneration of dopaminergic neurons in a Caenorhabditis elegans model of PD. Improving SynuClean-D pharmacokinetic/pharmacodynamic properties, performing structure/activity studies and testing its efficacy in mammalian models of PD requires the use of gr-amounts of the compound. However, not enough compound is on sale, and no synthetic route has been reported until now, which hampers the molecule progress towards clinical trials. To circumvent those problems, we describe here an efficient and economical route that enables the synthesis of SynuClean-D with good yields as well as the synthesis of SynuClean-D derivatives. Structure-activity comparison of the new compounds with SynuClean-D reveals the functional groups of the molecule that can be disposed of without activity loss and those that are crucial to interfere with α-synuclein aggregation. Several of the derivatives obtained retain the parent's compound excellent in vitro anti-aggregative activity, without compromising its low toxicity. Computational predictions and preliminary testing indicate that the blood brain barrier (BBB) permeability of SynuClean-D is low. Importantly, several of the newly designed and obtained active derivatives are predicted to display good BBB permeability. The synthetic route developed here will facilitate their synthesis for BBB permeability determination and for efficacy testing in mammalian models of PD.
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Affiliation(s)
- Alejandro Mahía
- Departamento de Química Orgánica, Facultad de Ciencias, University of Zaragoza, 50009 Zaragoza, Spain; Biocomputation and Complex Systems Physics Institute (BIFI)-Joint Units: BIFI-IQFR (CSIC) and GBsC-CSIC, University of Zaragoza, 50018 Zaragoza, Spain
| | - Samuel Peña-Díaz
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Institut de Biotecnologia i Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Susanna Navarro
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Institut de Biotecnologia i Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Juan José Galano-Frutos
- Biocomputation and Complex Systems Physics Institute (BIFI)-Joint Units: BIFI-IQFR (CSIC) and GBsC-CSIC, University of Zaragoza, 50018 Zaragoza, Spain; Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Ciencias, University of Zaragoza, 50009 Zaragoza, Spain
| | - Irantzu Pallarés
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Institut de Biotecnologia i Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Jordi Pujols
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Institut de Biotecnologia i Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - María D Díaz-de-Villegas
- Departamento de Química Orgánica, Facultad de Ciencias, University of Zaragoza, 50009 Zaragoza, Spain; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-University of Zaragoza, 50009 Zaragoza, Spain
| | - José A Gálvez
- Departamento de Química Orgánica, Facultad de Ciencias, University of Zaragoza, 50009 Zaragoza, Spain; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-University of Zaragoza, 50009 Zaragoza, Spain.
| | - Salvador Ventura
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Institut de Biotecnologia i Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; ICREA, 08010 Barcelona, Spain.
| | - Javier Sancho
- Biocomputation and Complex Systems Physics Institute (BIFI)-Joint Units: BIFI-IQFR (CSIC) and GBsC-CSIC, University of Zaragoza, 50018 Zaragoza, Spain; Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Ciencias, University of Zaragoza, 50009 Zaragoza, Spain; Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain.
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4
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Toral L, Rodríguez M, Martínez-Checa F, Montaño A, Cortés-Delgado A, Smolinska A, Llamas I, Sampedro I. Identification of Volatile Organic Compounds in Extremophilic Bacteria and Their Effective Use in Biocontrol of Postharvest Fungal Phytopathogens. Front Microbiol 2021; 12:773092. [PMID: 34867910 PMCID: PMC8633403 DOI: 10.3389/fmicb.2021.773092] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/11/2021] [Indexed: 11/17/2022] Open
Abstract
Phytopathogenic fungal growth in postharvest fruits and vegetables is responsible for 20-25% of production losses. Volatile organic compounds (VOCs) have been gaining importance in the food industry as a safe and ecofriendly alternative to pesticides for combating these phytopathogenic fungi. In this study, we analysed the ability of some VOCs produced by strains of the genera Bacillus, Peribacillus, Pseudomonas, Psychrobacillus and Staphylococcus to inhibit the growth of Alternaria alternata, Botrytis cinerea, Fusarium oxysporum, Fusarium solani, Monilinia fructicola, Monilinia laxa and Sclerotinia sclerotiorum, in vitro and in vivo. We analysed bacterial VOCs by using GC/MS and 87 volatile compounds were identified, in particular acetoin, acetic acid, 2,3-butanediol, isopentanol, dimethyl disulphide and isopentyl isobutanoate. In vitro growth inhibition assays and in vivo experiments using cherry fruits showed that the best producers of VOCs, Bacillus atrophaeus L193, Bacillus velezensis XT1 and Psychrobacillus vulpis Z8, exhibited the highest antifungal activity against B. cinerea, M. fructicola and M. laxa, which highlights the potential of these strains to control postharvest diseases. Transmission electron microscopy micrographs of bacterial VOC-treated fungi clearly showed antifungal activity which led to an intense degeneration of cellular components of mycelium and cell death.
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Affiliation(s)
- Laura Toral
- Xtrem Biotech S.L., European Business Innovation Center, Avenida de la Innovación, Granada, Spain
| | - Miguel Rodríguez
- Department of Microbiology, Faculty of Pharmacy, Campus de Cartuja s/n, Granada, Spain
- Biomedical Research Center (CIBM), Avenida del Conocimiento s/n, Granada, Spain
| | - Fernando Martínez-Checa
- Department of Microbiology, Faculty of Pharmacy, Campus de Cartuja s/n, Granada, Spain
- Biomedical Research Center (CIBM), Avenida del Conocimiento s/n, Granada, Spain
| | - Alfredo Montaño
- Department of Food Biotechnology, Instituto de la Grasa, Sevilla, Spain
| | | | - Agnieszka Smolinska
- Department of Pharmacology and Toxicology, Maastricht University, Maastricht, Netherlands
| | - Inmaculada Llamas
- Department of Microbiology, Faculty of Pharmacy, Campus de Cartuja s/n, Granada, Spain
- Biomedical Research Center (CIBM), Avenida del Conocimiento s/n, Granada, Spain
| | - Inmaculada Sampedro
- Department of Microbiology, Faculty of Pharmacy, Campus de Cartuja s/n, Granada, Spain
- Biomedical Research Center (CIBM), Avenida del Conocimiento s/n, Granada, Spain
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Yamazaki T, Nakajima Y, Iida M, Kawasaki-Takasuka T. Facile preparation and conversion of 4,4,4-trifluorobut-2-yn-1-ones to aromatic and heteroaromatic compounds. Beilstein J Org Chem 2021; 17:132-138. [PMID: 33520000 PMCID: PMC7814177 DOI: 10.3762/bjoc.17.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/18/2020] [Indexed: 11/23/2022] Open
Abstract
The concise preparation of 4,4,4-trifluorobut-2-yn-1-ones by the oxidation of the readily accessible corresponding propargylic alcohols as well as their utilization as Michael acceptors for the construction of aromatic and heteroaromatic compounds are reported.
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Affiliation(s)
- Takashi Yamazaki
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei 184-8588, Japan
| | - Yoh Nakajima
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei 184-8588, Japan
| | - Minato Iida
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei 184-8588, Japan
| | - Tomoko Kawasaki-Takasuka
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei 184-8588, Japan
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Coelho RA, Joffe LS, Alves GM, Figueiredo-Carvalho MHG, Brito-Santos F, Amaral ACF, Rodrigues ML, Almeida-Paes R. A screening of the MMV Pathogen Box® reveals new potential antifungal drugs against the etiologic agents of chromoblastomycosis. PLoS One 2020; 15:e0229630. [PMID: 32401759 PMCID: PMC7219733 DOI: 10.1371/journal.pone.0229630] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 04/27/2020] [Indexed: 12/17/2022] Open
Abstract
Chromoblastomycosis (CBM) is a chronic subcutaneous mycosis caused by traumatic implantation of many species of black fungi. Due to the refractoriness of some cases and common recurrence of CBM, a more effective and less time-consuming treatment is mandatory. The aim of this study was to identify compounds with in vitro antifungal activity in the Pathogen Box® compound collection against different CBM agents. Synergism of these compounds with drugs currently used to treat CBM was also assessed. An initial screening of the drugs present in this collection at 1 μM was performed with a Fonsecaea pedrosoi clinical strain according to the EUCAST protocol. The compounds with activity against this fungus were also tested against other seven etiologic agents of CBM (Cladophialophora carrionii, Phialophora verrucosa, Exophiala jeanselmei, Exophiala dermatitidis, Fonsecaea monophora, Fonsecaea nubica, and Rhinocladiella similis) at concentrations ranging from 0.039 to 10 μM. The analysis of potential synergism of these compounds with itraconazole and terbinafine was performed by the checkerboard method. Eight compounds inhibited more than 60% of the F. pedrosoi growth: difenoconazole, bitertanol, iodoquinol, azoxystrobin, MMV688179, MMV021013, trifloxystrobin, and auranofin. Iodoquinol produced the lowest MIC values (1.25-2.5 μM) and MMV688179 showed MICs that were higher than all compounds tested (5 - >10 μM). When auranofin and itraconazole were tested in combination, a synergistic interaction (FICI = 0.37) was observed against the C. carrionii isolate. Toxicity analysis revealed that MMV021013 showed high selectivity indices (SI ≥ 10) against the fungi tested. In summary, auranofin, iodoquinol, and MMV021013 were identified as promising compounds to be tested in CBM models of infection.
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Affiliation(s)
- Rowena Alves Coelho
- Mycology Laboratory at the Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | - Luna Sobrino Joffe
- Department of Microbiology and Immunology, Stony Brook University, New York, NY, United States of America
| | - Gabriela Machado Alves
- Mycology Laboratory at the Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | | | - Fábio Brito-Santos
- Mycology Laboratory at the Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | | | - Marcio L. Rodrigues
- Carlos Chagas Institute, Fiocruz, Paraná, Brazil
- Microbiology Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Rodrigo Almeida-Paes
- Mycology Laboratory at the Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
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7
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Campestre C, Keglevich G, Kóti J, Scotti L, Gasbarri C, Angelini G. Microwave-assisted simple synthesis of 2-anilinopyrimidines by the reaction of 2-chloro-4,6-dimethylpyrimidine with aniline derivatives. RSC Adv 2020; 10:12249-12254. [PMID: 35497585 PMCID: PMC9050660 DOI: 10.1039/d0ra00833h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/18/2020] [Indexed: 02/05/2023] Open
Abstract
A series of 2-anilinopyrimidines including novel derivatives has been obtained from 2-chloro-4,6-dimethylpyrimidine by aromatic nucleophilic substitution with differently substituted anilines under microwave conditions. The substituents had a significant impact on the course and efficiency of the reaction. The results reported herein demonstrate the efficacy of microwaves in the synthesis of the title heterocyclic compounds as compared to the results obtained with conventional heating. The 2-anilinopyrimidines described are of potential bioactivity. A rapid, one pot, green approach by microwave heating in ethanol provides a new method to obtain active and new potentially active compounds in high yields.![]()
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Affiliation(s)
- Cristina Campestre
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy +39-0871-3554785
| | - György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics 1521 Budapest Hungary
| | - János Kóti
- Spectroscopic Research Division, Gedeon Richter Plc. 1475 Budapest Hungary
| | - Luca Scotti
- Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy
| | - Carla Gasbarri
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy +39-0871-3554785
| | - Guido Angelini
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy +39-0871-3554785
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9
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Mekni NH. Nucleophilic Vinyl/Allyl, CF3 and CF2α Perfluoroalkyl Groups Substitution and/or E1CB Elimination Reactions of Fluorine Atom(s) in Organofluorinated Compounds. MINI-REV ORG CHEM 2019. [DOI: 10.2174/1570193x15666180626130042] [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
Direct substitution and elimination reactions of the fluorine atoms of difluoromethylene CF2α groups of nonspaced perfluoroalkyl chains, CF3 groups are very difficult to achieve. But, they become feasible with fluoro-alkenes, alkynes, imines or carbonyl derivatives, for which vinylic substitution and related carbanion-mediated pathways are available. In this review, we classify the major and unique fluorine substitution/elimination and rearrangement reactions and discuss their contribution to the synthesis of heterocyclic compounds.
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Affiliation(s)
- Nejib Hussein Mekni
- Department of Chemistry, Faculty of Science, Taibah University, P.O. Box 30002, Al-Munawarah, Saudi Arabia
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Zhang Y, Wang M, Ahmed M, He L, Ji M, Qi Z, Li X. Synthesis, fungicidal activity and SAR of 3,4-dichloroisothiazole-based cycloalkylsulfonamides. Bioorg Med Chem Lett 2019; 29:1345-1349. [DOI: 10.1016/j.bmcl.2019.03.047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/23/2019] [Accepted: 03/29/2019] [Indexed: 01/27/2023]
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Tinson RA, Hughes DL, Ward L, Stephenson GR. Unusual Nucleophilic Addition of Grignard Reagents in the Synthesis of 4-Amino-pyrimidines. ACS OMEGA 2018; 3:8937-8944. [PMID: 31459026 PMCID: PMC6644423 DOI: 10.1021/acsomega.8b01137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 07/18/2018] [Indexed: 06/10/2023]
Abstract
Pyrimidines have always received considerable attention because of their importance in synthesis and elucidation of biochemical roles, in particular that of vitamin B1. Herein, we describe a reaction pathway in a Grignard reagent-based synthesis of substituted pyrimidines. A general synthesis of α-keto-2-methyl-4-amino pyrimidines and their C6-substituted analogues from 4-amino-5-cyano-2-methylpyrimidine is reported. The presence of the nitrile substituent in the starting material also results in an unusual reaction pathway leading to C6-substituted 1,2-dihydropyrimidines. Grignard reagents that give normal pyrimidine products under standard reaction conditions can be switched to give dihydropyrimidines by holding the reaction at 0 °C before quenching.
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Ghosh S, Singharoy D, Dhara A, Naskar JP, Bhattacharya SC. Nonionic Surfactants as Potential Carriers of a Synthesized Pyrimidine Derivative: Spectroscopic and Quantum Chemical Investigations. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Swadesh Ghosh
- Department of Chemistry Jadavpur University 700032 Kolkata India
| | - Dipti Singharoy
- Department of Chemistry Jadavpur University 700032 Kolkata India
| | - Anamika Dhara
- Department of Chemistry Jadavpur University 700032 Kolkata India
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Ghosh S, Singharoy D, Bhattacharya SC. Spectroscopic and theoretical investigation of conformational changes of proteins by synthesized pyrimidine derivative and its sensitivity towards FRET application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 195:7-15. [PMID: 29358093 DOI: 10.1016/j.saa.2018.01.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 12/29/2017] [Accepted: 01/11/2018] [Indexed: 06/07/2023]
Abstract
Interest in synthesizing and characterizing (IR, NMR and HRMS spectroscopic methods) a pyrimidine based Schiff-base ligand, 2-(2-(Anthracen-9-ylmethylene) hydrazinyl)-4,6-dimethyl pyrimidine (ANHP) has been developed for its application to ascertain the conformational change of protein and sensitivity towards fluorescence resonance energy transfer (FRET) process. Location of ANHP in bovine serum albumin (BSA) and human serum albumin (HSA) proteins environment has been determined using different spectroscopic techniques. Weakly fluorescent ANHP have shown greater protein induced fluorescence enhancement (PIFE) in case of HSA than BSA, though in both cases energy transfer efficiency are almost same but difference in binding constant values encourages us to find the location of ANHP within the complex protein environment. From the FRET parameter and α-helicity change, it has been found that ANHP bound with Trp-214 of HSA and surface Trp-134 of BSA. Conformational changes of proteins have been observed more for HSA than BSA in presence of ANHP, which has confirmed the location of ANHP in both the protein environments. Coupled with experimental studies, molecular docking analysis has also been done to explain the locations and distance dependent FRET process of ANHP in both proteins.
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Affiliation(s)
- Swadesh Ghosh
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Dipti Singharoy
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
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Romanov AR, Rulev AY, Ushakov IA, Muzalevskiy VM, Nenajdenko VG. One-Pot, Atom and Step Economy (PASE) Assembly of Trifluoromethylated Pyrimidines from CF3
-Ynones. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700727] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Alexey R. Romanov
- A. E. Favorsky Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 664033 Irkutsk Russia
| | - Alexander Yu. Rulev
- A. E. Favorsky Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 664033 Irkutsk Russia
| | - Igor A. Ushakov
- A. E. Favorsky Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 664033 Irkutsk Russia
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