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Méndez D, Urra FA, Millas-Vargas JP, Alarcón M, Rodríguez-Lavado J, Palomo I, Trostchansky A, Araya-Maturana R, Fuentes E. Synthesis of antiplatelet ortho-carbonyl hydroquinones with differential action on platelet aggregation stimulated by collagen or TRAP-6. Eur J Med Chem 2020; 192:112187. [PMID: 32155530 DOI: 10.1016/j.ejmech.2020.112187] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/23/2020] [Accepted: 02/24/2020] [Indexed: 02/07/2023]
Abstract
Cardiovascular diseases are the leading cause of death in the world. Platelets have a major role in cardiovascular events as they bind to the damaged endothelium activating and forming thrombi. Although some hydroquinone scaffold-containing compounds have known antiplatelet activities, currently there is a lack of evidence on the antiplatelet activity of hydroquinones carrying electron attractor groups. In this work, we evaluate the antiplatelet effect of a series of ortho-carbonyl hydroquinone derivatives on cytotoxicity and function of human platelets, using collagen and thrombin receptor activator peptide 6 (TRAP-6) as agonists. Our structure-activity relationship study shows that gem-diethyl/methyl substitutions and the addition/modifications of the third ring of ortho-carbonyl hydroquinone scaffold influence on the selective index (IC50 TRAP-6/IC50 Collagen) and the inhibitory capacity of platelet aggregation. Compounds 3 and 8 inhibit agonist-induced platelet aggregation in a non-competitive manner with IC50 values of 1.77 ± 2.09 μM (collagen) and 11.88 ± 4.59 μM (TRAP-6), respectively and show no cytotoxicity. Both compounds do not affect intracellular calcium levels and mitochondrial bioenergetics. Consistently, they reduce the expression of P-selectin, activation of glycoprotein IIb/IIIa, and release of adenosine triphosphate and CD63 from platelet. Our findings may be used for further development of new drugs in platelet-related thrombosis diseases.
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Affiliation(s)
- Diego Méndez
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Félix A Urra
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile; Network for Snake Venom Research and Drug Discovery, Santiago, Chile.
| | - Juan Pablo Millas-Vargas
- Instituto de Química de Recursos Naturales, Programa de Investigación Asociativa en Cáncer Gástrico (PIA-CG), Universidad de Talca, Talca, Chile
| | - Marcelo Alarcón
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Julio Rodríguez-Lavado
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Iván Palomo
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Andrés Trostchansky
- Departamento de Bioquímica and Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Ramiro Araya-Maturana
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile; Instituto de Química de Recursos Naturales, Programa de Investigación Asociativa en Cáncer Gástrico (PIA-CG), Universidad de Talca, Talca, Chile; Network for Snake Venom Research and Drug Discovery, Santiago, Chile.
| | - Eduardo Fuentes
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile.
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Gautam BPS, Srivastava M, Prasad RL, Yadav RA. Synthesis, characterization and quantum chemical investigation of molecular structure and vibrational spectra of 2,5-dichloro-3,6-bis-(methylamino)1,4-benzoquinone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 129:241-254. [PMID: 24747332 DOI: 10.1016/j.saa.2014.02.082] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 02/11/2014] [Accepted: 02/19/2014] [Indexed: 06/03/2023]
Abstract
2,5-Dichloro-3,6-bis-methylamino-[1,4]benzoquinone has been synthesized by condensing methyl amine hydrochloride with chloranil in presence of condensing agent sodium acetate. FT-IR (4000-400 cm(-1)) and FT-Raman (4000-400 cm(-1)) spectral measurements of dmdb have been done. Ab initio and DFT (B3LYP/6-311+G(**)) calculations have been performed giving energies, optimized structures, harmonic vibrational frequencies, infrared intensities and Raman activities. The optimized molecular structure of the compound is found to possess C2h point group symmetry. A detailed interpretation of the observed IR and Raman spectra of dmdb is reported on the basis of the calculated potential energy distribution. Stability of the molecule arising from hyper conjugative interactions, charge delocalization has been analyzed using NBO analysis. The HOMO and LUMO energy gap reveals that the energy gap reflects the chemical activity of the molecule. The thermodynamic functions of the title compound have also been computed.
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Affiliation(s)
| | - Mayuri Srivastava
- Department of Physics, Banaras Hindu University, Varanasi 221005, India
| | - R L Prasad
- Department of Chemistry, Banaras Hindu University, Varanasi 221005, India
| | - R A Yadav
- Department of Physics, Banaras Hindu University, Varanasi 221005, India.
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Chen Y, Reymond JL, Lerner RA. Eine Antikörper-katalysierte 1,2-Umlagerung unter Beteiligung von C-C-Bindungen. Angew Chem Int Ed Engl 1994. [DOI: 10.1002/ange.19941061525] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kuckländer U, Herweg-Wahl U, Kuna K, Steigel A. Addition von β-Dicarbonylverbindungen an 2-Acetyl-p-benzochinon, 3. Mitt.1): Untersuchung der Umsetzung mit α-Hydroxymethylencycloalkanonen. Arch Pharm (Weinheim) 1991. [DOI: 10.1002/ardp.19913240105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Valderrama JA, Araya-Maturana R, González MF, Tapia R, Fariña F, Paredes MC. Studies on quinones. Part 21. Regioselective synthesis of tetracyclic quinones related to rabelomycin. ACTA ACUST UNITED AC 1991. [DOI: 10.1039/p19910000555] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fariña F, Paredes MC, Valderrama JA. Perkin communications. Acid-catalysed rearrangement of the Diels–Alder adducts of activated quinones. ACTA ACUST UNITED AC 1990. [DOI: 10.1039/p19900002345] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Valderrama JA, Fariña F, Paredes MC. Studies on Quinones. XVIII1. Synthesis of Diels-Alder Adducts of Activated Quinones with (E)-1-trimethylsilyloxybuta-1,3-diene. SYNTHETIC COMMUN 1989. [DOI: 10.1080/00397918908052733] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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