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Dembo A, Ferenczi E, Jernei T, Bor A, Schelz Z, Zupkó I, Varga S, Csámpai A. CuAAC-Based Synthesis, Copper-Catalyzed Aldehyde-Forming Hydrolytic Fission and Antiproliferative Evaluation of Novel Ferrocenoylamino-Substituted Triazole-Tethered Quinine-Chalcone Hybrids. Molecules 2024; 29:375. [PMID: 38257289 PMCID: PMC10820026 DOI: 10.3390/molecules29020375] [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: 12/08/2023] [Revised: 12/31/2023] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
A series of novel triazole-tethered ferrocenoylamino-substituted cinchona-chalcone hybrids along with two representative benzoylamino-substituted reference compounds were prepared by three methods of CuAAC chemistry. In line with the limited success or complete failure of attempted conversions with low catalyst loadings, by means of DFT modeling studies, we demonstrated that a substantial part of the Cu(I) ions can be chelated and thus trapped in the aroylamino-substituted cinchona fragment and all of the accessible coordinating sites of the chalcone residues. Accordingly, increased amounts of catalysts were used to achieve acceptable yields; however, the cycloadditions with para-azidochalcones were accompanied by partial or complete aldehyde-forming hydrolytic fission of the enone C=C bond in a substituent-, solvent- and copper load-dependent manner. The experienced hydrolytic stability of the hybrids obtained by cycloadditions with ortho-azidochalcones was interpreted in terms of relative energetics, DFT reactivity indices and MO analysis of simplified models of two isomer copper-enone complexes. The novel hybrids were evaluated on HeLa, MDA-MB-231 and A2780 cell lines and showed substantial activity at low-to-submicromolar concentrations. An organometallic model carrying 3,4,5-trimethoxyphenyl residue in the enone part with a para-disubstituted benzene ring in the central skeletal region was identified as the most potent antiproliferative lead, characterized by submicromolar IC50 values measured on the three investigated cells. The biological assays also disclosed that this ferrocenoylamino-containing lead compound displays a ca. two- to five-fold more substantial antiproliferative effect than its benzoylamino-substituted counterpart.
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Affiliation(s)
- António Dembo
- Department of Organic Chemistry, Eötvös Loránd University (ELTE), Pázmány P. sétány 1/A, H-1117 Budapest, Hungary; (A.D.); (E.F.); (T.J.)
- Hevesy György PhD School of Chemistry, Pázmány P. sétány 1/A, H-1117 Budapest, Hungary
| | - Etelka Ferenczi
- Department of Organic Chemistry, Eötvös Loránd University (ELTE), Pázmány P. sétány 1/A, H-1117 Budapest, Hungary; (A.D.); (E.F.); (T.J.)
- Hevesy György PhD School of Chemistry, Pázmány P. sétány 1/A, H-1117 Budapest, Hungary
| | - Tamás Jernei
- Department of Organic Chemistry, Eötvös Loránd University (ELTE), Pázmány P. sétány 1/A, H-1117 Budapest, Hungary; (A.D.); (E.F.); (T.J.)
| | - Andrea Bor
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6., H-6720 Szeged, Hungary; (A.B.); (Z.S.); (I.Z.)
| | - Zsuzsanna Schelz
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6., H-6720 Szeged, Hungary; (A.B.); (Z.S.); (I.Z.)
| | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6., H-6720 Szeged, Hungary; (A.B.); (Z.S.); (I.Z.)
| | - Szilárd Varga
- HUN-REN Research Centre for Natural Sciences, Institute of Organic Chemistry, Magyar Tudósok Krt 2., H-1117 Budapest, Hungary;
| | - Antal Csámpai
- Department of Organic Chemistry, Eötvös Loránd University (ELTE), Pázmány P. sétány 1/A, H-1117 Budapest, Hungary; (A.D.); (E.F.); (T.J.)
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Ferencz E, Spengler G, Zupkó I, Vollár M, Zomborszki ZP, Kúsz N, Hohmann J, Kovács B, Csupor D, Laczkó-Zöld E, Csupor-Löffler B. Isolation of compounds from the roots of Ambrosia artemisiifolia and their effects on human cancer cell lines. Z NATURFORSCH C 2023; 78:299-305. [PMID: 37029666 DOI: 10.1515/znc-2022-0239] [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: 12/01/2022] [Accepted: 03/16/2023] [Indexed: 04/09/2023]
Abstract
Common ragweed (Ambrosia artemisiifolia L.) is an invasive plant in Europe with spreading use in the contemporary folk medicine. The chemical composition of the above-ground parts is extensively studied, however, the metabolites of the roots are less discovered. By multiple chromatographic purification of the root extracts, we isolated thiophene A (1), n-dodecene (2), taraxerol-3-O-acetate (3), α-linoleic acid (4), (+)-pinoresinol (5), and thiophene E (7,10-epithio-7,9-tridecadiene-3,5,11-triyne-1,2-diol) (6). The 1H NMR data published earlier for 1 were supplemented together with the assignment of 13C NMR data. Thiophene E (6), which is reported for the first time from this species, exerted cytotoxic and antiproliferative effects on A-431 epidermoid skin cancer cells, whereas taraxerol-3-O-acetate (3) and α-linoleic acid (4) had slight antiproliferative effect on gynecological cancer cell lines. Thiophene E (6) and taraxerol-3-O-acetate (3) displayed antiproliferative and cytotoxic effects on MRC-5 fibroblast cells. Thiophene E (6) exerted weak antibacterial activity (MIC 25 μg/mL) on MRSA ATCC 43300, on Staphylococcus aureus ATCC 25923, Escherichia coli AG100 and E. coli ATCC 25922 both thiophenes were inactive. Although the isolated compounds exerted no remarkable cytotoxic or antiproliferative activities, the effects on MRC-5 fibroblast cells highlight the necessity of further studies to support the safety of ragweed root.
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Affiliation(s)
- Elek Ferencz
- Faculty of Pharmacy, Institute of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
- Department of Physical Chemistry, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Gh. Marinescu 38, RO-540139 Tîrgu Mureș, Romania
| | - Gabriella Spengler
- Department of Medical Microbiology, Albert Szent-Györgyi Health Center and Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis u. 6, H-6725 Szeged, Hungary
| | - István Zupkó
- Faculty of Pharmacy, Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Martin Vollár
- Faculty of Pharmacy, Institute of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Zoltán Péter Zomborszki
- Faculty of Pharmacy, Institute of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Norbert Kúsz
- Faculty of Pharmacy, Institute of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Judit Hohmann
- Faculty of Pharmacy, Institute of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
- ELKH-USZ Biologically Active Natural Products Research Group, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Balázs Kovács
- Faculty of Pharmacy, Institute of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Dezső Csupor
- Faculty of Pharmacy, Institute of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
- Medical School, Institute for Translational Medicine, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary
- Faculty of Pharmacy, Institute of Clinical Pharmacy, University of Szeged, Szikra u. 8, H-6725 Szeged, Hungary
| | - Eszter Laczkó-Zöld
- Department of Pharmacognosy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Gh. Marinescu 38, RO-540139 Tîrgu Mureș, Romania
| | - Boglárka Csupor-Löffler
- Faculty of Pharmacy, Institute of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
- Medical School, Institute for Translational Medicine, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary
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Dincheva I, Badjakov I, Galunska B. New Insights into the Research of Bioactive Compounds from Plant Origins with Nutraceutical and Pharmaceutical Potential. PLANTS (BASEL, SWITZERLAND) 2023; 12:258. [PMID: 36678971 PMCID: PMC9860645 DOI: 10.3390/plants12020258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Plant bioactive compounds are essential for human health due to their multiple biological effects, such as antioxidant, anticarcinogenic, antiallergenic, anti-inflammatory, antimutagenic, and antimicrobial activities, which can have beneficial effects on various noncommunicable diseases, such as autoimmune, inflammatory, cardiovascular, cancer, metabolic, and neurodegenerative diseases [...].
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Affiliation(s)
- Ivayla Dincheva
- Department of Agrobiotechnologies, Agrobioinstitute, Agricultural Academy, 8 Dragan Tsankov blvd., 1164 Sofia, Bulgaria
| | - Ilian Badjakov
- Department of Agrobiotechnologies, Agrobioinstitute, Agricultural Academy, 8 Dragan Tsankov blvd., 1164 Sofia, Bulgaria
| | - Bistra Galunska
- Department of Biochemistry, Molecular Medicine and Nutrigenomics, Faculties of Pharmacy, Medical University “Prof. Dr. Paraskev Stoyanov”, 84 Tzar Osvoboditel Str., 9000 Varna, Bulgaria
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