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Jurek P, Jędrzejewska H, Rode MF, Szumna A. Recognition-Induced Enhanced Emission of Core-Fluorescent ESIPT-type Macrocycles. Chemistry 2023; 29:e202203116. [PMID: 36214211 DOI: 10.1002/chem.202203116] [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: 10/06/2022] [Indexed: 11/07/2022]
Abstract
Core-fluorescent cavitands based on 2-(2'-resorcinol)benzimidazole fluorophores (RBIs) merged with the resorcin[4]arene skeleton were designed and synthesized. The cavitands, due to the presence of intramolecular hydrogen bonds and increased acidity, show excited state intramolecular proton transfer (ESIPT) and readily undergo deprotonation to form dianionic cavitands, capable of strong binding to organic cations. The changes in fluorescence are induced by deprotonation and binding events and involve huge Stokes shifts (due to emission from anionic double keto tautomers) and cation-selective enhancement of emission originating from the restriction of intramolecular motion (RIR) upon recognition in the cavity. Ab initio calculations indicate that the macrocyclic scaffold stabilizes the ground state tautomeric forms of the fluorophores that are not observed for non-macrocyclic analogs. In the excited state, the emitting forms for both macrocyclic scaffolds and non-macrocyclic analogs are anionic double keto tautomers, which are the result of excited state intramolecular proton transfer (ESIPT) or excited state double proton transfer (ESDPT).
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Affiliation(s)
- Paulina Jurek
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Hanna Jędrzejewska
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Michał F Rode
- Institute of Physics Polish Academy of Sciences, Aleja Lotników 32/46, 02-668, Warsaw, Poland
| | - Agnieszka Szumna
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
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Ürgüt OS, Tavman A, Eser MG. Synthesis, Characterization and Antibacterial Activities of Ferrocene Ligands and Their Binuclear Complexes. CHEMISTRY JOURNAL OF MOLDOVA 2022. [DOI: 10.19261/cjm.2022.957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
6-Chloro-2-ferrocenyl-1H-benzimidazole and (E)-((4-chloro-2-hydroxyphenylimino)methyl)ferrocene ligands and their Fe(III), Co(II), Cu(II), Zn(II) and Pd(II) complexes were synthesized. The structure of ligands and metal complexes has been investigated by different methods. In addition, magnetic moment, molar conductivity measurements and antibacterial activity of the ligands and the complexes were investigated.
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Affiliation(s)
- Ozan Süleyman Ürgüt
- Department of Chemistry, Faculty of Arts and Sciences, Tekirdag Namik Kemal University, Namik Kemal District, Degirmenalti Campus, 1, Campus str., Suleymanpasa-Tekirdag 59030, Turkey
| | - Aydin Tavman
- Department of Chemistry, Engineering Faculty, Istanbul University-Cerrahpasa, University District, 7, Baglarici str., Avcilar-Istanbul 34320, Turkey
| | - Muazzez Gürgan Eser
- Department of Biology, Faculty of Arts and Sciences, Tekirdag Namik Kemal University, Namik Kemal District, Degirmenalti Campus, 1, Campus str., Suleymanpasa-Tekirdag 59030, Turkey
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Synthesis, structural characterization and antimicrobial activity of Schiff bases and benzimidazole derivatives and their complexes with CoCl2, PdCl2, CuCl2 and ZnCl2. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129498] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Soltani S, Akhbari K, White J. Sonochemical Synthesis, Crystal Structure and Antimicrobial Property of One‐dimensional Dinuclear Coordination Polymer. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000268] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Sajjad Soltani
- School of Chemistry College of Science University of Tehran Tehran Iran
| | - Kamran Akhbari
- School of Chemistry College of Science University of Tehran Tehran Iran
| | - Jonathan White
- School of Chemistry and Bio21 Institute The University of Melbourne 3010 VIC Australia
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Nouri K, Ghassemzadeh M, Mohsenzadeh F, Afsharpour M. Pd(0) complex of fuberidazole modified magnetic nanoparticles: A novel magnetically retrievable high‐performance catalyst for Suzuki and Stille C‐C coupling reactions. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5771] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kheirollah Nouri
- Department of Inorganic ChemistryChemistry & Chemical Engineering Research Center of Iran Pajoohesh Blvd., 17th Km of Tehran–Karaj Highway Tehran 14968‐13151 Iran
| | - Mitra Ghassemzadeh
- Department of Inorganic ChemistryChemistry & Chemical Engineering Research Center of Iran Pajoohesh Blvd., 17th Km of Tehran–Karaj Highway Tehran 14968‐13151 Iran
| | - Farshid Mohsenzadeh
- Department of Inorganic ChemistryChemistry & Chemical Engineering Research Center of Iran Pajoohesh Blvd., 17th Km of Tehran–Karaj Highway Tehran 14968‐13151 Iran
| | - Maryam Afsharpour
- Department of Inorganic ChemistryChemistry & Chemical Engineering Research Center of Iran Pajoohesh Blvd., 17th Km of Tehran–Karaj Highway Tehran 14968‐13151 Iran
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Matysiak J, Skrzypek A, Karpińska M, Czarnecka K, Szymański P, Bajda M, Niewiadomy A. Biological Evaluation, Molecular Docking, and SAR Studies of Novel 2-(2,4-Dihydroxyphenyl)-1 H- Benzimidazole Analogues. Biomolecules 2019; 9:biom9120870. [PMID: 31842463 PMCID: PMC6995558 DOI: 10.3390/biom9120870] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 12/28/2022] Open
Abstract
In the present study, new 4-(1H-benzimidazol-2-yl)-benzene-1,3-diols, modified in both rings, have been synthesized and their efficacies as acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) inhibitors have been determined. The modified Ellman’s spectrophotometric method was applied for the biological evaluation. The compounds showed strong (IC50 80–90 nM) AChE and moderate (IC50 5–0.2 µM) BuChE inhibition in vitro. Some compounds were effective toward AChE/BuChE, exhibiting high selectivity ratios versus BuChE, while the other compounds were active against both enzymes. The structure–activity relationships were discussed. The compounds inhibited also in vitro self-induced Aβ(1–42) aggregation and exhibited antioxidant properties. The docking simulations showed that the benzimidazoles under consideration interact mainly with the catalytic site of AChE and mimic the binding mode of tacrine.
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Affiliation(s)
- Joanna Matysiak
- Department of Chemistry, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland; (A.S.); (A.N.)
- Correspondence:
| | - Alicja Skrzypek
- Department of Chemistry, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland; (A.S.); (A.N.)
| | - Monika Karpińska
- Łukasiewicz Research Network – Institute of Industrial Organic Chemistry, Annopol 6, 03-236 Warsaw, Poland;
| | - Kamila Czarnecka
- Department of Pharmaceutical Chemistry, Drug Analyses and Radiopharmacy, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland; (K.C.); (P.S.)
| | - Paweł Szymański
- Department of Pharmaceutical Chemistry, Drug Analyses and Radiopharmacy, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland; (K.C.); (P.S.)
| | - Marek Bajda
- Department of Physicochemical Drug Analysis, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland;
| | - Andrzej Niewiadomy
- Department of Chemistry, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland; (A.S.); (A.N.)
- Łukasiewicz Research Network – Institute of Industrial Organic Chemistry, Annopol 6, 03-236 Warsaw, Poland;
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Hernández-Morales A, Rivera JM, López-Monteon A, Lagunes-Castro S, Castillo-Blum S, Cureño-Hernández K, Flores-Parra A, Villaseñor-Granados O, Colorado-Peralta R. Complexes containing benzimidazolyl-phenol ligands and Ln(III) ions: Synthesis, spectroscopic studies and preliminary cytotoxicity evaluation. J Inorg Biochem 2019; 201:110842. [PMID: 31536950 DOI: 10.1016/j.jinorgbio.2019.110842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 09/06/2019] [Accepted: 09/07/2019] [Indexed: 11/18/2022]
Abstract
Fourteen new complexes were obtained from Ln(III)(NO3)3∙n-H2O and the chromophores 2-(1H-benzo[d]imidazol-2-yl)-phenol (Bzp1) or 2-(5-methyl-1H-benzo[d]imidazol-2-yl)-phenol (Bzp2). The complete characterization allowed us to assign unequivocally the structures of all the complexes. The techniques used for this purpose were Ultraviolet-Visible (UV-Vis) and Fourier-Transform Infrared (FT-IR) spectroscopies, High-Resolution Mass Spectrometry (HRMS), Magnetic Susceptibility (MS), Elemental Analysis (EA) and Molar Conductivity (MC). HRMS allowed us to find the molecular ion and its isotopic pattern. The FT-IR spectral data suggested that benzimidazolyl-phenol ligands coordinate with Ln(III) ions through iminic nitrogen and phenolic oxygen. Thermogravimetric Analysis (TGA) studies of NdBzp1 and GdBzp2 complexes indicate the presence of lattice water along with three nitrates and two benzimidazolyl-phenol ligands; the thermal decomposition was consistent with the minimal formula suggested by EA. The coordination type of the benzimidazolyl-phenol ligands, the geometry and the structural organization of these coordination complexes have been interpreted by Density Functional Theory (DFT) calculations, and they coincided with the physicochemical data suggesting a coordination number eight for the Ln(III) ions. The cytotoxicity of the chromophores and their coordination complexes was tested against a cancer cell line (HeLa), as compared with structure/support cells (NIH-3T3) and defense cells (J774A.1), revealing that three coordination complexes showed moderate cytotoxicity against the cell lines studied.
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Affiliation(s)
| | - José María Rivera
- Maestría en Ciencias en Procesos Biológicos, FCQ-UV, C.P. 94340 Orizaba, Ver., Mexico
| | - Aracely López-Monteon
- Maestría en Ciencias en Procesos Biológicos, FCQ-UV, C.P. 94340 Orizaba, Ver., Mexico
| | | | | | | | | | | | - Raúl Colorado-Peralta
- Maestría en Ciencias en Procesos Biológicos, FCQ-UV, C.P. 94340 Orizaba, Ver., Mexico.
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Hernández-Núñez E, Tlahuext H, Moo-Puc R, Moreno D, González-Díaz MO, Vázquez GN. Design, Synthesis and Biological Evaluation of 2-(2-Amino-5(6)-nitro-1H-benzimidazol-1-yl)-N-arylacetamides as Antiprotozoal Agents. Molecules 2017; 22:molecules22040579. [PMID: 28375176 PMCID: PMC6154724 DOI: 10.3390/molecules22040579] [Citation(s) in RCA: 5] [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: 01/24/2017] [Revised: 03/31/2017] [Accepted: 03/31/2017] [Indexed: 12/20/2022] Open
Abstract
Parasitic diseases are a public health problem affecting millions of people worldwide. One of the scaffolds used in several drugs for the treatment of parasitic diseases is the benzimidazole moiety, a heterocyclic aromatic compound. This compound is a crucial pharmacophore group and is considered a privileged structure in medicinal chemistry. In this study, the benzimidazole core served as a model for the synthesis of a series of 2-(2-amino-5(6)-nitro-1H-benzimidazol-1-yl)-N-arylacetamides 1–8 as benznidazole analogues. The in silico pharmacological results calculated with PASS platform exhibited chemical structures highly similar to known antiprotozoal drugs. Compounds 1–8 when evaluated in silico for acute toxicity by oral dosing, were less toxic than benznidazole. The synthesis of compounds 1–8 were carried out through reaction of 5(6)-nitro-1H-benzimidazol-2-amine (12) with 2-chlroactemides 10a–h, in the presence of K2CO3 and acetonitrile as solvent, showing an inseparable mixture of two regioisomers with the -NO2 group in position 5 or 6 with chemical yields of 60 to 94%. The prediction of the NMR spectra of molecule 1 coincided with the experimental chemical displacements of the regioisomers. Comparisons between the NMR prediction and the experimental data revealed that the regioisomer endo-1,6-NO2 predominated in the reaction. The in vitro antiparasitic activity of these compounds on intestinal unicellular parasites (Giardia intestinalis and Entamoeba histolytica) and a urogenital tract parasite (Trichomonas vaginalis) were tested. Compound 7 showed an IC50 of 3.95 μM and was 7 time more active against G. intestinalis than benznidazole. Compounds 7 and 8 showed 4 times more activity against T. vaginalis compared with benznidazole.
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Affiliation(s)
- Emanuel Hernández-Núñez
- CONACYT, Departamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Mérida, Mérida 97310, Yucatán, Mexico.
| | - Hugo Tlahuext
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Cuernavaca 62210, Morelos, Mexico.
| | - Rosa Moo-Puc
- Unidad Interinstitucional de Investigación Médica, Instituto Mexicano del Seguro Social/Universidad Autónoma de Yucatán, Mérida 97150, Yucatán, México.
| | - Diego Moreno
- Facultad de Ingeniería, Universidad Autónoma de Yucatán, Mérida 97310, Yucatán, Mexico.
| | | | - Gabriel Navarrete Vázquez
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Morelos, Mexico.
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Raja K, Suseelamma A, Reddy KH. Synthesis, spectral properties, DNA binding interactions and DNA cleavage studies of lanthanide (III) complexes of 2-acetylpyridine acetoylhydrazone: the X-ray crystal structure of 10-coordinate Ce (III) and Sm (III) complexes. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2015. [DOI: 10.1007/s13738-015-0624-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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