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D’yakonov VA, Makarov AA, Dzhemileva LU, Ramazanov IR, Makarova EK, Dzhemilev UM. Natural Trienoic Acids as Anticancer Agents: First Stereoselective Synthesis, Cell Cycle Analysis, Induction of Apoptosis, Cell Signaling and Mitochondrial Targeting Studies. Cancers (Basel) 2021; 13:cancers13081808. [PMID: 33920067 PMCID: PMC8070279 DOI: 10.3390/cancers13081808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/30/2021] [Accepted: 04/06/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Currently, the whole world is acutely concerned with the selection of effective treatment regimens for oncological diseases. This problem is becoming more and more catastrophic every year due to the phenomenon of multidrug resistance, the consequence of which is the loss of the effectiveness of drugs against tumor cells. One of the solutions to the problem described above is the synthesis of new low molecular weight compounds that can effectively affect molecular cellular targets, for example, enzymes of the cell cycle, and, as a consequence, interrupt DNA synthesis, contributing to tumor death. Within the framework of this article, we carried out the Z-stereoselective synthesis of natural unsaturated acids containing a 1Z,5Z,9Z-triene moiety, for which it was shown that they are effective inhibitors of human topoisomerase I, and also affect mitochondria. At the same time, using multiplex analysis, the activation of signaling pathways was studied and a probable mechanism of the antitumor action of the synthesized trienoic acids was proposed. Abstract The first Z-stereoselective method was developed for the synthesis of unsaturated acids containing a 1Z,5Z,9Z-triene moiety in 61–64% yields using the new Ti-catalyzed cross-coupling of oxygen-containing and aliphatic 1,2-dienes as the key synthetic step. It was shown for the first time that trienoic acids with non-methylene-interrupted Z-double bonds show moderate cytotoxic activities against tumor cell lines (Jurkat, K562, U937, HL60, HeLa), human embryonic kidney cells (Hek293), normal fibroblasts and human topoisomerase I (hTop1) inhibitory activity in vitro. The synthesized acids efficiently initiate apoptosis of Jurkat tumor cells, with the cell death mechanism being activated by the mitochondrial pathway. A probable mechanism of topoisomerase I inhibition was also hypothesized on the basis of in silico studies resorting to docking. The activation and inhibition of the most versatile intracellular signaling pathways (CREB, JNK, NFkB, p38, ERK1/2, Akt, p70S6K, STAT3 and STAT5 tyrosine kinases) responsible for cell proliferation and for initiation of apoptosis were studied by multiplex assay technology (Luminex xMAP).
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Tuktarov AR, Khuzina LL, Sadretdinova ZR, Makarova EK, Dzhemileva LU, D'yakonov VA, Dzhemilev UM. Synthesis and cytotoxic activity of unsaturated macrolides and their hybrid molecules with a C 60 fullerene. Org Biomol Chem 2021; 19:1847-1853. [PMID: 33565546 DOI: 10.1039/d1ob00023c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Previously unreported macrodiolides containing a 1Z,5Z-diene fragment in the structure have been synthesized with high yields and stereoselectivity by our research group, using the intermolecular esterification of malonic acid with α,ω-diols containing bis-methylene-separated Z-double bonds, catalyzed by Hf(OTf)4 hafnium triflate. Under Bingel-Hirsch conditions, the synthesized macrodiolides were chemically bonded with a C60 fullerene to produce the corresponding methanofullerenes. The cytotoxic activity of macrodiolides and methanofullerenes in relation to Jurkat, K562, U937, HL60 tumor cell lines and normal fibroblasts was studied. Covalent binding of macrodiolides to the C60 fullerene molecule was found to significantly increase the cytotoxic effect (from 5 to 170 times) of the hybrid molecule as compared to the initial macrodiolide. Moreover, the synthesized hybrid molecules initiate apoptosis by uncoupling oxidation and phosphorylation of the mitochondrial membrane of tumor cells.
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Affiliation(s)
- Airat R Tuktarov
- Institute of Petrochemistry and Catalysis of RAS (IPC RAS), Prospect Octyabrya, 141, 450075 Ufa, Russian Federation.
| | - Liliya L Khuzina
- Institute of Petrochemistry and Catalysis of RAS (IPC RAS), Prospect Octyabrya, 141, 450075 Ufa, Russian Federation.
| | - Zarema R Sadretdinova
- Institute of Petrochemistry and Catalysis of RAS (IPC RAS), Prospect Octyabrya, 141, 450075 Ufa, Russian Federation.
| | - Elina Kh Makarova
- Institute of Petrochemistry and Catalysis of RAS (IPC RAS), Prospect Octyabrya, 141, 450075 Ufa, Russian Federation.
| | - Lilya U Dzhemileva
- Institute of Petrochemistry and Catalysis of RAS (IPC RAS), Prospect Octyabrya, 141, 450075 Ufa, Russian Federation.
| | - Vladimir A D'yakonov
- Institute of Petrochemistry and Catalysis of RAS (IPC RAS), Prospect Octyabrya, 141, 450075 Ufa, Russian Federation.
| | - Usein M Dzhemilev
- Institute of Petrochemistry and Catalysis of RAS (IPC RAS), Prospect Octyabrya, 141, 450075 Ufa, Russian Federation.
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Rodríguez-Morales S, Ocampo-Medina B, Romero-Ceronio N, Alvarado-Sánchez C, Vilchis-Reyes MÁ, Roa de la Fuente LF, Ortiz-Andrade R, Hernández-Abreu O. Metabolic Profiling of Vasorelaxant Extract from Malvaviscus arboreus by LC/QTOF-MS. Chem Biodivers 2021; 18:e2000820. [PMID: 33560535 DOI: 10.1002/cbdv.202000820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 02/05/2021] [Indexed: 11/07/2022]
Abstract
We aimed to develop a standardized methodology to determine the metabolic profile of organic extracts from Malvaviscus arboreus Cav. (Malvaceae), a Mexican plant used in traditional medicine for the treatment of hypertension and other illnesses. Also, we determined the vasorelaxant activity of these extracts by ex vivo rat thoracic aorta assay. Organic extracts of stems and leaves were prepared by a comprehensive maceration process. The vasorelaxant activity was determined by measuring the relaxant capability of the extract to decrease a contraction induced by noradrenaline (0.1 μM). The hexane extract induced a significant vasorelaxant effect in a concentration- and endothelium-dependent manner. Secondary metabolites, such as polyunsaturated fatty acids, terpenes and one flavonoid, were annotated by liquid chromatography/quadrupole time-of-flight mass spectrometry (LC/QTOF-MS) in positive ion mode. This exploratory study allowed us to identify bioactive secondary metabolites from Malvaviscus arboreus, as well as identify potentially-new vasorelaxant molecules and scaffolds for drug discovery.
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Affiliation(s)
- Sergio Rodríguez-Morales
- Unidad de Química-Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de abrigo S/N, 97356, Sisal, Yucatán, Mexico
| | - Blanca Ocampo-Medina
- Centro de Investigación de Ciencia y Tecnología Aplicada de Tabasco, Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa km. 1, Cunduacán, 86690, Tabasco, Mexico
| | - Nancy Romero-Ceronio
- Centro de Investigación de Ciencia y Tecnología Aplicada de Tabasco, Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa km. 1, Cunduacán, 86690, Tabasco, Mexico
| | - Cuauhtémoc Alvarado-Sánchez
- Centro de Investigación de Ciencia y Tecnología Aplicada de Tabasco, Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa km. 1, Cunduacán, 86690, Tabasco, Mexico
| | - Miguel Ángel Vilchis-Reyes
- Centro de Investigación de Ciencia y Tecnología Aplicada de Tabasco, Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa km. 1, Cunduacán, 86690, Tabasco, Mexico
| | - Luis Fernando Roa de la Fuente
- Centro de Investigación de Ciencia y Tecnología Aplicada de Tabasco, Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa km. 1, Cunduacán, 86690, Tabasco, Mexico
| | - Rolffy Ortiz-Andrade
- Facultad de Química, Universidad Autónoma de Yucatán, Mérida, Calle 43 N. 613, 97069, Mérida, Yucatán, Mexico
| | - Oswaldo Hernández-Abreu
- Centro de Investigación de Ciencia y Tecnología Aplicada de Tabasco, Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa km. 1, Cunduacán, 86690, Tabasco, Mexico
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Tuktarov AR, Khuzina LL, Akhmetov AR, Tuktarova RA, Ishmukhametova SR, Dzhemileva LU, D'yakonov VA, Dzhemilev UM. Hybrid Molecules Based on C
60
Fullerene and 5Z,9Z‐Dienoic Acids: Synthesis and Cytotoxic Activity. ChemistrySelect 2019. [DOI: 10.1002/slct.201903525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Airat R. Tuktarov
- Institute of Petrochemistry and CatalysisRussian Academy of Sciences 450075 Ufa Pr. Octyabrya 141 Russia
| | - Liliya L. Khuzina
- Institute of Petrochemistry and CatalysisRussian Academy of Sciences 450075 Ufa Pr. Octyabrya 141 Russia
| | - Arslan R. Akhmetov
- Institute of Petrochemistry and CatalysisRussian Academy of Sciences 450075 Ufa Pr. Octyabrya 141 Russia
| | - Regina A. Tuktarova
- Institute of Petrochemistry and CatalysisRussian Academy of Sciences 450075 Ufa Pr. Octyabrya 141 Russia
| | - Svetlana R. Ishmukhametova
- Institute of Petrochemistry and CatalysisRussian Academy of Sciences 450075 Ufa Pr. Octyabrya 141 Russia
| | - Lilya U. Dzhemileva
- Institute of Petrochemistry and CatalysisRussian Academy of Sciences 450075 Ufa Pr. Octyabrya 141 Russia
| | - Vladimir A. D'yakonov
- Institute of Petrochemistry and CatalysisRussian Academy of Sciences 450075 Ufa Pr. Octyabrya 141 Russia
| | - Usein M. Dzhemilev
- Institute of Petrochemistry and CatalysisRussian Academy of Sciences 450075 Ufa Pr. Octyabrya 141 Russia
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D’yakonov VA, Tuktarova RA, Dzhemilev UM. Ti-Catalyzed Cross-Cyclomagnesiation of 1,2-Dienes in the Total Z, Z, Z-Stereoselective Synthesis of Natural Acetogenin-Chatenaytrienin-1. ACS OMEGA 2019; 4:14085-14091. [PMID: 31497727 PMCID: PMC6714518 DOI: 10.1021/acsomega.9b01951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 08/08/2019] [Indexed: 06/10/2023]
Abstract
The first total synthesis of natural acetogenin, chatenaytrienin-1, was performed in 10 steps and in 41% overall yield using cross-cyclomagnesiation of (6Z)-heptadeca-1,2,6-triene and trideca-11,12-dien-1-ol tetrahydropyran acetal with EtMgBr in the presence of Mg metal and the Cp2TiCl2 catalyst (10 mol %) as the key step of the synthesis.
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Dzhemileva LU, D'yakonov VA, Makarov AA, Andreev EN, Yunusbaeva MM, Dzhemilev UM. The first total synthesis of the marine acetylenic alcohol, lembehyne B - a selective inducer of early apoptosis in leukemia cancer cells. Org Biomol Chem 2018; 15:470-476. [PMID: 27929178 DOI: 10.1039/c6ob02346k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The communication reports a new stereoselective method for the synthesis of a natural acetylenic alcohol, lembehyne B. The key stage of the process uses new cross-cyclomagnesiation reaction of aliphatic and oxygenated 1,2-dienes with Grignard reagents in the presence of a catalytic amount of Cp2TiCl2. A study of the cytotoxic properties of lembehyne B on tumor cell lines using flow cytometry demonstrated that this is a selective inducer of early apoptosis of the Jurkat, HL-60 and K562 cell cultures and hypodiploid (sub-G1) sub-population inducer in cell cycle studies for all cell lines used.
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Affiliation(s)
- Lilya U Dzhemileva
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation. and Department of Immunology and Human Reproductive Health Bashkir State Medical University, Lenin Street, 3, 450003, Ufa, Russian Federation.
| | - Vladimir A D'yakonov
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
| | - Aleksey A Makarov
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
| | - Evgeny N Andreev
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
| | - Milyausha M Yunusbaeva
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
| | - Usein M Dzhemilev
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
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Total Synthesis and Structural Elucidation of Two Unusual Non-Methylene-Interrupted Fatty Acids in Ovaries of the Limpet Cellana toreuma. Lipids 2017; 52:1019-1032. [DOI: 10.1007/s11745-017-4303-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 09/19/2017] [Indexed: 01/13/2023]
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Ti-catalyzed cross-cyclomagnesiation of 1,2-dienes in the stereoselective synthesis of insect pheromones. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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9
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D'yakonov VA, Makarov AA, Dzhemileva LU, Andreev PEN, Dzhemilev UM. Total Synthesis of Neuritogenic Alkynes: Lembehyne B and Key Intermediate of Lembehyne A. ChemistrySelect 2017. [DOI: 10.1002/slct.201601988] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Vladimir A. D'yakonov
- Laboratory of Catalytic Synthesis; Institute of Petrochemistry and Catalysis of Russian Academy of Sciences; 141 Prospekt Oktyabrya, Ufa 450075 Russian Federation
| | - Alexey A. Makarov
- Laboratory of Catalytic Synthesis; Institute of Petrochemistry and Catalysis of Russian Academy of Sciences; 141 Prospekt Oktyabrya, Ufa 450075 Russian Federation
| | - Lilya U. Dzhemileva
- Laboratory of Catalytic Synthesis; Institute of Petrochemistry and Catalysis of Russian Academy of Sciences; 141 Prospekt Oktyabrya, Ufa 450075 Russian Federation
- Department of Immunology and Human Reproductive Health; Bashkir State Medical University; Lenin Street, 3 450003 Ufa Russian Federation
| | - PhD Evgeny N. Andreev
- Laboratory of Catalytic Synthesis; Institute of Petrochemistry and Catalysis of Russian Academy of Sciences; 141 Prospekt Oktyabrya, Ufa 450075 Russian Federation
| | - Usein M. Dzhemilev
- Laboratory of Catalytic Synthesis; Institute of Petrochemistry and Catalysis of Russian Academy of Sciences; 141 Prospekt Oktyabrya, Ufa 450075 Russian Federation
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Advances in the Chemistry of Natural and Semisynthetic Topoisomerase I/II Inhibitors. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2017. [DOI: 10.1016/b978-0-444-63929-5.00002-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Synthesis and transformations of metallacycles. 45. Cross-cyclomagnesiation of 1,2-dienes in the synthesis of 5Z,9Z-dienoic acids, efficient inhibitors of human topoisomerase I. Russ Chem Bull 2016. [DOI: 10.1007/s11172-015-1128-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Adrian J, Stark CBW. Flexible Approach to (5Z
,9Z
)-Dienoic Fatty Acids Relevant to the Synthesis of Demospongic Acids and Related Natural Products. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600746] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Juliane Adrian
- Fachbereich Chemie; Institut für Organische Chemie; Universität Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Christian B. W. Stark
- Fachbereich Chemie; Institut für Organische Chemie; Universität Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
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Adrian J, Stark CBW. Modular and Stereodivergent Approach to Unbranched 1,5,9,n-Polyenes: Total Synthesis of Chatenaytrienin-4. J Org Chem 2016; 81:8175-86. [DOI: 10.1021/acs.joc.6b01051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Juliane Adrian
- Fachbereich Chemie, Institut
für Organische Chemie, Universität Hamburg, Martin-Luther-King-Platz
6, 20146 Hamburg, Germany
| | - Christian B. W. Stark
- Fachbereich Chemie, Institut
für Organische Chemie, Universität Hamburg, Martin-Luther-King-Platz
6, 20146 Hamburg, Germany
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D'yakonov VA, Dzhemileva LU, Tuktarova RA, Makarov AA, Islamov II, Mulyukova AR, Dzhemilev UM. Catalytic cyclometallation in steroid chemistry III: Synthesis of steroidal derivatives of 5Z,9Z-dienoic acid and investigation of its human topoisomerase I inhibitory activity. Steroids 2015; 102:110-7. [PMID: 26276106 DOI: 10.1016/j.steroids.2015.08.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 08/03/2015] [Accepted: 08/08/2015] [Indexed: 11/20/2022]
Abstract
Two approaches to stereoselective synthesis of steroid 5Z,9Z-dienoic acids were developed, the first one being based on the cross-cyclomagnesiation of 2-(hepta-5,6-dien-1-yloxy)tetrahydro-2H-pyran and 1,2-diene cholesterol derivatives on treatment with EtMgBr catalyzed by Cp2TiCl2, while the other involving the synthesis of esters of hydroxy steroids with (5Z,9Z)-tetradeca-5,9-dienedioic acid, prepared in two steps using homo-cyclomagnesiation of 2-(hepta-5,6-dien-1-yloxy)tetrahydro-2H-pyran as the key step. High inhibitory activity of the synthesized acids against human topoisomerase I (hTop1) was found.
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Affiliation(s)
- Vladimir A D'yakonov
- Institute of Petrochemistry and Catalysis, Russian Academy of Science, 141 Prospekt Oktyabrya, 450075 Ufa, Russian Federation.
| | - Lilya U Dzhemileva
- Department of Immunology and Human Reproductive Health, Bashkir State Medical University, 3 Lenin Street, Ufa, Bashkortostan 450003, Russian Federation.
| | - Regina A Tuktarova
- Institute of Petrochemistry and Catalysis, Russian Academy of Science, 141 Prospekt Oktyabrya, 450075 Ufa, Russian Federation
| | - Aleksey A Makarov
- Institute of Petrochemistry and Catalysis, Russian Academy of Science, 141 Prospekt Oktyabrya, 450075 Ufa, Russian Federation
| | - Ilgiz I Islamov
- Institute of Petrochemistry and Catalysis, Russian Academy of Science, 141 Prospekt Oktyabrya, 450075 Ufa, Russian Federation
| | - Alfiya R Mulyukova
- Institute of Petrochemistry and Catalysis, Russian Academy of Science, 141 Prospekt Oktyabrya, 450075 Ufa, Russian Federation
| | - Usein M Dzhemilev
- Institute of Petrochemistry and Catalysis, Russian Academy of Science, 141 Prospekt Oktyabrya, 450075 Ufa, Russian Federation
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nZ,(n + 4)Z-Dienoic fatty acids: a new method for the synthesis and inhibitory action on topoisomerase I and IIα. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1446-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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D'yakonov VA, Makarov AA, Dzhemileva LU, Makarova EK, Khusnutdinova EK, Dzhemilev UM. The facile synthesis of the 5Z,9Z-dienoic acids and their topoisomerase I inhibitory activity. Chem Commun (Camb) 2014; 49:8401-3. [PMID: 23939654 DOI: 10.1039/c3cc44926b] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An original, effective approach to the synthesis of natural and synthetic 5Z,9Z-dienoic acids in high yields (61-67%) and with high selectivity (>98%) was developed. The approach is based on the use of the new intermolecular catalytic cross cyclomagnesiation of terminal aliphatic and oxygenated 1,2-dienes upon treatment with Grignard reagents in the presence of the Cp2TiCl2 catalyst. High activity of (5Z,9Z)-5,9-eicosadienoic acid as a human topoisomerase I inhibitor at concentrations above 0.1 μM was elucidated.
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Affiliation(s)
- Vladimir A D'yakonov
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
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Novel organomagnesium reagents in synthesis. Catalytic cyclomagnesiation of allenes in the synthesis of N-, O-, and Si-substituted 1Z,5Z-dienes. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.106] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Carballeira NM, Betancourt JE, Orellano EA, González FA. Total synthesis and biological evaluation of (5Z,9Z)-5,9-hexadecadienoic acid, an inhibitor of human topoisomerase I. JOURNAL OF NATURAL PRODUCTS 2002; 65:1715-1718. [PMID: 12444712 DOI: 10.1021/np0202576] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The naturally occurring (5Z,9Z)-5,9-hexadecadienoic acid was synthesized stereochemically pure in six steps starting with commercially available 1,5-hexadiyne. The title compound was antimicrobial against the Gram-positive bacteria Staphylococcus aureus (MIC 80 microM) and Streptococcus faecalis (MIC 200 microM), but inactive against Gram-negative bacteria such as Pseudomonas aeruginosa. In addition, the (5Z,9Z)-5,9-hexadecadienoic acid completely inhibits human topoisomerase I at a concentration of 800 microM, while 5,9-hexadecadiynoic acid and hexadecanoic acid do not inhibit topoisomerase I (>1000 microM). This comparison reveals that the cis double bond geometry in the title compound is required for topoisomerase I inhibition. Moreover, these results suggest that the antimicrobial activity of (5Z,9Z)-5,9-hexadecadienoic acid against either S. aureus or S. faecalis could be a result, at least in part, of the inhibitory activity of the acid against topoisomerases.
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Affiliation(s)
- Néstor M Carballeira
- Department of Chemistry, University of Puerto Rico, PO Box 23346, San Juan, Puerto Rico 00931-3346.
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