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New 2-(2,4-Dihydroxyphenyl)benzimidazolines. MOLBANK 2023. [DOI: 10.3390/m1602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
Abstract
New 2-(2,4-dihydroxyphenyl)benzimidazolines are synthesized in an easily accessible approach. The method is based on the reaction of resorcinol with in situ-formed electrophilic N-ethoxycarbonylbenzimidazolium reagents. The structure of the two newly formed products was spectrally characterized by 1D and 2D NMR, IR, and MS spectral analyses.
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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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Cholinesterases Inhibition, Anticancer and Antioxidant Activity of Novel Benzoxazole and Naphthoxazole Analogs. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238511. [PMID: 36500605 PMCID: PMC9738531 DOI: 10.3390/molecules27238511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
Benzoxazole and naphthoxazole fused systems are found in many biologically active molecules. Novel benzoxazole and naphthoxazole analogs functionalized by the 2,4-dihydroxyphenyl moiety were designed, obtained and evaluated as a broad spectrum of biological potency compounds. Sulfinylbis[(2,4-dihydroxyphenyl)methanethione] or its analogs and 2-aminophenols or 1-amino-2-naphthol were used as starting reagents. 4-(Naphtho[1,2-d][1,3]oxazol-2-yl)benzene-1,3-diol was identified as the most promising compound of the nanomolar activity against AChE (IC50 = 58 nM) of the mixed-type inhibition and of the moderate activity against BChE (IC50 = 981 nM). The higher antiproliferative potency against a panel of human cancer cell lines for naphtho[1,2-d][1,3]oxazoles than for benzoxazoles was found. The activity of the analog with chlorine atom was in the range of 2.18-2.89 µM (IC50) against all studied cells and it is similar to that of cisplatin studied comparatively. Moreover, this compound was not toxic at this concentration to human normal breast cells and keratinocytes. For some compounds it also has proved antioxidant properties at the level of IC50 = 0.214 µM, for the most active compound. The lipophilicity of all compounds, expressed as log p values, is within the range recommended for potential drugs. The biological activity profile of the considered analogs and their lipophilic level justify the search for agents used in AD or in anticancer therapy in this group of compounds.
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Liu K, Zeng N, Pan J, Gong D, Zhang G. Synthesis, characterization, toxicity evaluation and inhibitory effect of hesperitin-copper (Ⅱ) complex on xanthine oxidase. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Szeliga M, Karpińska M, Rola R, Niewiadomy A. Design, synthesis and biological evaluation of novel 1,3,4-thiadiazole derivatives as anti-glioblastoma agents targeting the AKT pathway. Bioorg Chem 2020; 105:104362. [PMID: 33074121 DOI: 10.1016/j.bioorg.2020.104362] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/03/2020] [Accepted: 10/06/2020] [Indexed: 12/27/2022]
Abstract
In spite of progress in understanding biology of glioblastoma (GBM), this tumor remains incurable with a median survival rate of 15 months. Previous studies have shown that 2-(4-fluorophenyloamino)-5-(2,4-dihydroxyphenyl)-1,3,4-thiadiazole (FPDT) and 2-(3-chlorophenyloamino)-5-(2,4-dihydroxyphenyl)-1,3,4-thiadiazole (CPDT) diminished viability of cancer cell lines of different origin. In the current study, we have examined activity of these compounds in several GBM cell lines and patient-derived GBM cells. We have also designed, synthesized and evaluated anti-GBM activity of novel 1,3,4-thiadiazole derivatives containing additional Cl or CH2CH3 substitute at C5-position of 2,4-dihydroxyphenyl. The tested compounds presented a considerable cytotoxicity against all GBM cell lines examined as well as patient-derived GBM cells. They were 15-110 times more potent than temozolomide, the first-line chemotherapeutic agent for GBM. Notably, in anticancer concentrations three of the derivatives were not toxic to human astrocytes. FPDT appeared to be the most promising compound with IC50 values between 45 μM and 68 μM for GBM cells and >100 μM for astrocytes. It augmented activity of temozolomide and inhibited proliferation migration and invasion of GBM cells. Treatment with FPDT diminished phosphorylation level of GSK3β and AKT. Pretreatment with PDGF-BB, an AKT activator, partially protected cells from death caused by FPDT, indicating that FPDT-mediated decrease in cell viability is causatively related to the inhibition of the AKT pathway.
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Affiliation(s)
- Monika Szeliga
- Department of Neurotoxicology, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawinskiego Str, 02-106 Warsaw, Poland.
| | - Monika Karpińska
- Łukasiewicz Research Network - Institute of Industrial Organic Chemistry, 6 Annopol Str., 03-236 Warsaw, Poland.
| | - Radosław Rola
- Department of Neurosurgery and Paediatric Neurosurgery of the Lublin Medical University, 8 Jaczewskiego Str, 20-090 Lublin, Poland.
| | - Andrzej Niewiadomy
- Łukasiewicz Research Network - Institute of Industrial Organic Chemistry, 6 Annopol Str., 03-236 Warsaw, Poland.
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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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Matysiak J, Karpińska MM, Skrzypek A, Wietrzyk J, Kłopotowska D, Niewiadomy A, Paw B, Juszczak M, Rzeski W. Design, synthesis and antiproliferative activity against human cancer cell lines of novel benzo-, benzofuro-, azolo- and thieno-1,3-thiazinone resorcinol hybrids. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.05.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Janeczko M, Kazimierczuk Z, Orzeszko A, Niewiadomy A, Król E, Szyszka R, Masłyk M. In Search of the Antimicrobial Potential of Benzimidazole Derivatives. Pol J Microbiol 2018; 65:359-364. [PMID: 29334067 DOI: 10.5604/17331331.1215615] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A broad series of 4,5,6,7-tetrahalogenated benzimidazoles and 4-(1H-benzimidazol-2-yl)-benzene-1,3-diol derivatives was tested against selected bacteria and fungi. For this study three plant pathogens Colletotrichum sp., Fusarium sp., and Sclerotinia sp., as well as Staphylococcus sp., Enterococcus sp., Escherichia sp., Enterobacter sp., Klebsiella spp. , and Candida spp. as human pathogens were used. MIC values and/or area of growth reduction method were applied in order to compare the activity of the synthesized compounds. From the presented set of 22 compounds, only 8, 16, 18 and 19 showed moderate to good inhibition against bacterial strains. Against Candida strains only compound 19 with three hydroxyl substituted benzene moiety presented high inhibition at nystatin level or lower.
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Affiliation(s)
- Monika Janeczko
- Department of Molecular Biology, Institute of Biotechnology, The John Paul II Catholic University of Lublin, Lublin, Poland
| | | | - Andrzej Orzeszko
- Institute of Chemistry, Warsaw University of Life Sciences, Warsaw, Poland
| | | | - Ewa Król
- Department of Phytopatology and Mycology, Faculty of Horticulture and Landscape Architecture, University of Life Sciences, Lublin, Poland
| | - Ryszard Szyszka
- Department of Molecular Biology, Institute of Biotechnology, The John Paul II Catholic University of Lublin, Lublin, Poland
| | - Maciej Masłyk
- Department of Molecular Biology, Institute of Biotechnology, The John Paul II Catholic University of Lublin, Lublin, Poland
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Wahedy K, Abu Thaher B, Schollmeyer D, Almasri I, Morjan R, Qeshta B, Deigner HP. Crystal structures of pure 3-(4-bromo-2-chloro-phen-yl)-1-(pyridin-4-yl)benzo[4,5]imidazo[1,2- d][1,2,4]triazin-4(3 H)-one and contaminated with 3-(4-bromo-phen-yl)-1-(pyridin-4-yl)benzo[4,5]imidazo[1,2- d][1,2,4]triazin-4(3 H)-one. Acta Crystallogr E Crystallogr Commun 2017; 73:1341-1343. [PMID: 28932470 PMCID: PMC5588576 DOI: 10.1107/s2056989017011732] [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: 08/07/2017] [Accepted: 08/10/2017] [Indexed: 11/14/2022]
Abstract
The side product of the cyclo-condensation reaction between ethyl benzimidazole-2-carboxyl-ate and the nitrile imine of the corresponding hydrazonyl chloride, C20H11BrClN5O, crystallized in two crystal forms. Form (1) is a co-crystal of the target compound (without any chlorine substituent) and a side product containing a Cl atom in position 2 of the bromo-phenyl group, C20H12BrN5O·0.143C20H11BrClN5O. (2) contains the pure side product. The slightly different conformation of the ring systems leads to a different packing of (1) and (2), but both crystal structures are dominated by π-π inter-actions.
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Affiliation(s)
- Kanan Wahedy
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Alazhar University-Gaza, Gaza Strip, Palestinian Territories
| | - Bassam Abu Thaher
- Faculty of Science, Chemistry Department, Islamic University of Gaza Strip, Gaza Strip, Palestinian Territories
| | - Dieter Schollmeyer
- Department of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55099 Mainz, Germany
| | - Ihab Almasri
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Alazhar University-Gaza, Gaza Strip, Palestinian Territories
| | - Rami Morjan
- Faculty of Science, Chemistry Department, Islamic University of Gaza Strip, Gaza Strip, Palestinian Territories
| | - Basem Qeshta
- Faculty of Science, Chemistry Department, Islamic University of Gaza Strip, Gaza Strip, Palestinian Territories
| | - Hans-Peter Deigner
- Hochschule Furtwangen (HFU), Fakultät Medical and Life Sciences, Jakob-Kienzle Strasse 17, 78054 Villingen-Schwenningen, Germany
- Fraunhofer IZI, EXIM Rostock, Perlickstrasse 1, 04103 Leipzig, Germany
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Gürbüz D, Tavman A, Cinarli A, Boz I. Synthesis, Spectral and Theoretical Characterization of 5,6-Dichloro/Dimethyl-2-(2´,3´/2´,4´/2´,5´/3´,4´/3´,5´-Dimethoxyphenyl)-1H-Benzimidazoles. CHEMISTRY JOURNAL OF MOLDOVA 2016. [DOI: 10.19261/cjm.2016.11(2).07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abu Thaher B, Schollmeyer D, Qeshta B, Wahedy KM, Almasri IM, Morjan RY, Deigner HP. 1-(Pyridin-4-yl)-3-(2,4,6-trichlorophenyl)benz[4,5]imidazo[1,2- d][1,2,4]triazin-4(3 H)-one. IUCRDATA 2016. [DOI: 10.1107/s2414314616015297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the title compound, C20H10Cl3N5O, the 13-membered ring system makes dihedral angles of 78.64 (9)° with the trichlorophenyl ring and 62.60 (10)° with the pyridine ring. The crystal packing is dominated by π–π interactions between the 13-membered ring systems [centroid–centroid distance = 3.6655 (11)°].
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Phase Transition Detection in Accumulation of a Potential Anticancer Drug Cl-IPBD with DNA: Supercoiled and Linear pUC19 Plasmids. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.05.159] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Alp M, Göker H, Ozkan T, Sunguroglu A. Synthesis and cytotoxic evaluation of novel N-substituted amidino-1-hydroxybenzimidazole derivatives. Arch Pharm Res 2013; 37:580-7. [DOI: 10.1007/s12272-013-0197-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 06/23/2013] [Indexed: 10/26/2022]
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