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Benites J, Valderrama JA, Ramos M, Valenzuela M, Guerrero-Castilla A, Muccioli GG, Buc Calderon P. Half-Wave Potentials and In Vitro Cytotoxic Evaluation of 3-Acylated 2,5- Bis(phenylamino)-1,4-benzoquinones on Cancer Cells. Molecules 2019; 24:molecules24091780. [PMID: 31071970 PMCID: PMC6539005 DOI: 10.3390/molecules24091780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 04/12/2019] [Accepted: 04/16/2019] [Indexed: 01/28/2023] Open
Abstract
A broad range of 3-acyl-2,5-bis(phenylamino)-1,4-benzoquinones were synthesized and their voltammetric values, as well as in vitro cancer cell cytotoxicities, were assessed. The members of this series were prepared from acylbenzoquinones and phenylamines, in moderate to good yields (47–74%), through a procedure involving a sequence of two in situ regioselective oxidative amination reactions. The cyclic voltammograms of the aminoquinones exhibit two one-electron reduction waves to the corresponding radical-anion and dianion, and two quasi-reversible oxidation peaks. The first and second half-wave potential values (E1/2) of the members of the series were sensitive to the push-pull electronic effects of the substituents around the benzoquinone nucleus. The in vitro cytotoxic activities of the 3-acyl-2,5-bis(phenylamino)-1,4-benzoquinones against human cancer cells (bladder and prostate) and non-tumor human embryonic kidney cells were measured using the MTT colorimetric method. The substitution of both aniline groups, by either methoxy (electron donating effect) or fluorine (electron withdrawal effect), decreased the cytotoxicity in the aminoquinones. Among the members of the unsubstituted phenylamino series, two of the 18 compounds showed interesting anti-cancer activities. A preliminary assay, looking for changes in the expression of selected genes, was performed. In this context, the two compounds increased TNF gene expression, suggesting an association with an inflammatory-like response.
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Affiliation(s)
- Julio Benites
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile.
- Instituto de Ciencias Exactas y Naturales, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile.
| | - Jaime A Valderrama
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile.
- Instituto de Ciencias Exactas y Naturales, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile.
| | - Maryan Ramos
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile.
| | - Maudy Valenzuela
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile.
| | - Angélica Guerrero-Castilla
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile.
| | - Giulio G Muccioli
- Bioanalysis and Pharmacology of Bioactive Lipids (BPBL), Louvain Drug Research Institute, Université catholique de Louvain, 72 Avenue E. Mounier, BPBL 7201, 1200 Brussels, Belgium.
| | - Pedro Buc Calderon
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile.
- Research Group in Metabolism and Nutrition, Louvain Drug Research Institute, Université catholique de Louvain, 73 Avenue E. Mounier, 1200 Brussels, Belgium.
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Illner S, Plagemann R, Saling P, Kragl U. Eco-efficiency analysis as a reaction-engineering tool—Case study of a laccase-initiated oxidative C–N coupling. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.01.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Herter S, Mikolasch A, Michalik D, Hammer E, Schauer F, Bornscheuer U, Schmidt M. C–N coupling of 3-methylcatechol with primary amines using native and recombinant laccases from Trametes versicolor and Pycnoporus cinnabarinus. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.123] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hahn V, Mikolasch A, Manda K, Gördes D, Thurow K, Schauer F. Derivatization of amino acids by fungal laccases: Comparison of enzymatic and chemical methods. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2009.04.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mikolasch A, Matthies A, Lalk M, Schauer F. Laccase-induced C-N coupling of substituted p-hydroquinones with p-aminobenzoic acid in comparison with known chemical routes. Appl Microbiol Biotechnol 2008; 80:389-97. [PMID: 18668239 DOI: 10.1007/s00253-008-1595-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2007] [Revised: 06/26/2008] [Accepted: 06/26/2008] [Indexed: 11/28/2022]
Abstract
Fungal laccases (benzenediol:oxygen oxidoreductase, EC 1.10.3.2) from Pycnoporus cinnabarinus and Myceliophthora thermophila were used as biocatalysts for enzymatic reaction of halogen-, alkyl-, alkoxy-, and carbonyl-substituted p-hydroquinones (laccase substrates) with p-aminobenzoic acid (no laccase substrate). During this reaction, the laccase substrate was oxidized to the corresponding quinones, which react with p-aminobenzoic acid by amination of the laccase substrate. The different substitutions at the hydroquinone substrates were used to prove whether the substituents influence the position of amination and product yields. The cross-coupling of methoxy-p-hydroquinone (alkoxylated) and 2,5-dihydroxybenzaldehyd (carbonyl-substituted) with p-aminobenzoic acid resulted in the formation of one monoaminated product (yield alkoxylated 52%). If monohalogen- or monoalkyl-substituted p-hydroquinones were used as laccase substrates, two monoaminated products (constitution isomers) were formed. The simultaneous formation of two different monoaminated products from the same hydroquinone substrate is the first report for laccase-mediated synthesis of aminated constitution isomers. Depending from the type of substituent of the hydroquinone, the positions of the two monoaminations are different. While the amination at the monoalkylated hydroquinone occurs at the 5- and 6-positions (yield 38%), the amination at monohalogenated hydroquinones was detectable at the 3- and 5-positions (yield 53%). The same product pattern could be achieved if instead of the biocatalyst laccase the chemical catalyst sodium iodate was used as the oxidant. However, the yields were partially much lower (0-45% of the yields with laccase).
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Affiliation(s)
- Annett Mikolasch
- Institute of Microbiology, Ernst-Moritz-Arndt-University, Greifswald, Germany.
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Nuclear amination catalyzed by fungal laccases: Comparison of laccase catalyzed amination with known chemical routes to aminoquinones. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcatb.2006.12.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Glass RS, Block E, Lorance E, Zakai UI, Gruhn NE, Jin J, Zhang SZ. The Si−Si Effect on Ionization of β-Disilanyl Sulfides and Selenides. J Am Chem Soc 2006; 128:12685-92. [PMID: 17002362 DOI: 10.1021/ja0573514] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The ionization energies of conformationally constrained, newly synthesized beta-disilanyl sulfides and selenides were determined by photoelectron spectroscopy. These ionization energies reflect substantial (0.53-0.75 eV) orbital destabilizations. The basis for these destabilizations was investigated by theoretical calculations, which reveal geometry-dependent interaction between sulfur or selenium lone pair orbitals and sigma-orbitals, especially Si-Si sigma-orbitals. These results presage facile redox chemistry for these compounds and significantly extend the concept of sigma-stabilization of electron-deficient centers.
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Affiliation(s)
- Richard S Glass
- Department of Chemistry, The University of Arizona, Tucson, AZ 85721, USA.
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Extraction of zinc(ii) from aqueous alkali solutions byortho-derivatives of phenols. Russ Chem Bull 1996. [DOI: 10.1007/bf01431623] [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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Torres T, Eswaran SV, Schäfer W. Rearrangement of 3-methoxy substituted [2, 1]benzisoxazole- and naphth[2,3-c]isoxazolequinones in dimethyl sulfoxide solution. J Heterocycl Chem 1985. [DOI: 10.1002/jhet.5570220318] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Torres T, Eswaran SV, Schäfer W. Quninone chemistry. Synthesis of 3-dialkylsulfoximido- and 2-dialkyl-sulfimido-3-carbomethoxy-1,4-benzo- and naphthoquinone derivatives. J Heterocycl Chem 1985. [DOI: 10.1002/jhet.5570220317] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Torres T, Eswaran SV, Schäfer W. Quninone chemistry. Synthesis of 3-methoxy[2, 1]benzisoxazoleand 3-methoxynaphth[2,3-c]isoxazolequinones. J Heterocycl Chem 1985. [DOI: 10.1002/jhet.5570220316] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Pardo M, Joos K, Schäfer W. Über die oxidative Aminierung von 1′,4′-Dihydroxy-2′-acetonaphthon. ACTA ACUST UNITED AC 1979. [DOI: 10.1002/jlac.197919790411] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Schäfer W, Falkner C. Zur Reaktion von 3-Acetyl-2,5-dianilino-1,4-benzochinon mit N1-Phenylbenzamidin; Synthese von Chinolinchinonen. ACTA ACUST UNITED AC 1977. [DOI: 10.1002/jlac.197719770906] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Shaikh YA. An investigation of oxidative animation of 2-methyl-1,4-benzoquinone with pyrrolidine. J Heterocycl Chem 1977. [DOI: 10.1002/jhet.5570140540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Srivastava SC, Hornemann U, Hornemann U. Oxidative Aminierung von Toluhydrochinon. Angew Chem Int Ed Engl 1976. [DOI: 10.1002/ange.19760880304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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