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Khudina OG, Burgart YV, Malkova NA, Shchegolkov EV, Krasnykh OP, Triandafilova GA, Malysheva KO, Solodnikov SY, Dubodel ES, Korolkova YV, Kozlov SA, Borisevich SS, Mozhaitsev ES, Saloutin VI. 5-Alkoxy-1-aryl-3-polyfluoroalkylpyrazoles with Antinociceptive Activity: Partial Agonists of TRPV1 Ion Channels. ChemMedChem 2023; 18:e202300063. [PMID: 37006199 DOI: 10.1002/cmdc.202300063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/04/2023]
Abstract
Chemoselective O-alkylation of 1-aryl-3-polyfluoroalkylpyrazol-5-oles under basic conditions resulted in a series of 5-alkoxypyrazoles (26 derivatives). They showed an acceptable ADME profile (in silico) and can be considered as drug-like. In experiments in vivo (CD-1 mice), it was found that the obtained compounds do not have toxic properties at a dose of more than 150 mg/kg (for most compounds at a dose of >300 mg/kg, and for lead compounds - >600 mg/kg). 22 Compounds from this series demonstrated from moderate to high analgesic effects (28-104 % at 1 h and 37-109 % at 2 h after administration) in vivo in the hot plate test (SD rats, 15 mg/kg, intraperitoneal (ip)). The lead compound was 4-([1-phenyl-3-(trifluoromethyl)pyrazol-5-yl]oxy)butan-1-ol, which not only increased the latent period in the hot plate test by 103 % at both measurement points but also showed a pronounced analgesic effect under conditions of capsaicin-induced nociception (CD-1 mice, 15 mg/kg, ip). According to molecular modeling, all synthesized compounds can interact with the TRPV1 ion channel. This biological target was confirmed in in vitro experiments on Chinese hamster ovary cells expressing rTRPV1. 5-Alkoxypyrazoles were partial agonists of the TRPV1 ion channel in various degree, and the most active was the same pyrazole as in in vivo tests.
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Affiliation(s)
- Olga G Khudina
- Ural Branch of the Russian Academy of Sciences, Postovsky Institute of Organic Synthesis, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia
| | - Yanina V Burgart
- Ural Branch of the Russian Academy of Sciences, Postovsky Institute of Organic Synthesis, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia
| | - Natalia A Malkova
- Ural Branch of the Russian Academy of Sciences, Postovsky Institute of Organic Synthesis, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia
| | - Evgeny V Shchegolkov
- Ural Branch of the Russian Academy of Sciences, Postovsky Institute of Organic Synthesis, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia
| | - Olga P Krasnykh
- Scientific and Educational Center for Applied Chemical-Biological Research, Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm, 614990, Russia
| | - Galina A Triandafilova
- Scientific and Educational Center for Applied Chemical-Biological Research, Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm, 614990, Russia
| | - Ksenia O Malysheva
- Scientific and Educational Center for Applied Chemical-Biological Research, Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm, 614990, Russia
| | - Sergey Yu Solodnikov
- Scientific and Educational Center for Applied Chemical-Biological Research, Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm, 614990, Russia
| | - Elisaveta S Dubodel
- The Russian Academy of Sciences, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya St., 16/10, Moscow, 117997, Russia
| | - Yuliya V Korolkova
- The Russian Academy of Sciences, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya St., 16/10, Moscow, 117997, Russia
| | - Sergey A Kozlov
- The Russian Academy of Sciences, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya St., 16/10, Moscow, 117997, Russia
| | - Sophia S Borisevich
- The Russian Academy of Sciences, Ufa Institute of Chemistry, Octyabrya Av., 71, Ufa, 450078, Russia
| | - Evgenii S Mozhaitsev
- Siberian Branch of the Russian Academy of Sciences, N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Lavrentiev Av., 9, Novosibirsk, 630090, Russia
| | - Victor I Saloutin
- Ural Branch of the Russian Academy of Sciences, Postovsky Institute of Organic Synthesis, S. Kovalevskoi St., 22, Ekaterinburg, 620108, Russia
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Lapshin LS, Shchegolkov EV, Burgart YV, Triandafilova GA, Krasnykh OP, Malysheva KO, Saloutin VI. Synthesis of new analgesics based on 4-isopropyl-1-phenyl-3-(trifluoromethyl)pyrazol-5-one. MENDELEEV COMMUNICATIONS 2023. [DOI: 10.1016/j.mencom.2023.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Powerful Potential of Polyfluoroalkyl-Containing 4-Arylhydrazinylidenepyrazol-3-ones for Pharmaceuticals. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010059. [PMID: 36615256 PMCID: PMC9821843 DOI: 10.3390/molecules28010059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/08/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
4-Arylhydrazinylidene-5-(polyfluoroalkyl)pyrazol-3-ones (4-AHPs) were found to be obtained by the regiospecific cyclization of 2-arylhydrazinylidene-3-(polyfluoroalkyl)-3-oxoesters with hydrazines, by the azo coupling of 4-nonsubstituted pyrazol-5-oles with aryldiazonium chlorides or by the firstly discovered acid-promoted self-condensation of 2-arylhydrazinylidene-3-oxoesters. All the 4-AHPs had an acceptable ADME profile. Varying the substituents in 4-AHPs promoted the switching or combining of their biological activity. The polyfluoroalkyl residue in 4-AHPs led to the appearance of an anticarboxylesterase action in the micromolar range. An NH-fragment and/or methyl group instead of the polyfluoroalkyl one in the 4-AHPs promoted antioxidant properties in the ABTS, FRAP and ORAC tests, as well as anti-cancer activity against HeLa that was at the Doxorubicin level coupled with lower cytotoxicity against normal human fibroblasts. Some Ph-N-substituted 4-AHPs could inhibit the growth of N. gonorrhoeae bacteria at MIC 0.9 μg/mL. The possibility of using 4-AHPs for cell visualization was shown. Most of the 4-AHPs exhibited a pronounced analgesic effect in a hot plate test in vivo at and above the diclofenac and metamizole levels except for the ones with two chlorine atoms in the aryl group. The methylsulfonyl residue was proved to raise the anti-inflammatory effect also. A mechanism of the antinociceptive action of the 4-AHPs through blocking the TRPV1 receptor was proposed and confirmed using in vitro experiment and molecular docking.
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Shchegolkov EV, Burgart YV, Matsneva DA, Borisevich SS, Kadyrova RA, Orshanskaya IR, Zarubaev VV, Saloutin VI. Polyfluoroalkylated antipyrines in Pd-catalyzed transformations. RSC Adv 2021; 11:35174-35181. [PMID: 35493195 PMCID: PMC9042801 DOI: 10.1039/d1ra06967e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/21/2021] [Indexed: 01/08/2023] Open
Abstract
In the direct C–H arylation with arylhalogenides in the presence of Pd(OAc)2, trifluoromethyl-containing antipyrine reacts very slowly and incompletely owing to the low nucleophilicity of its C4 center. However, it was effective in modifying polyfluoroalkyl-substituted 4-bromo- and 4-iodo antipyrines by the Suzuki and Sonogashira reactions. It was established that using Pd2(dba)3 as catalyst and XPhos as phosphine ligand was the optimal catalytic system for the synthesis of 4-aryl- and 4-phenylethynyl-3-polyfluoroalkyl-antipyrines. Moreover, iodo-derivatives as the initial reagents were found to be more advantageous compared to bromo-containing analogs. It was found that 4-phenylethynyl-5-CF3-antipyrine has a moderate activity against the influenza virus A/Puerto Rico/8/34 (H1N1) and 4-iodo-5-CF3-antipyrine reveals a weak activity against the vaccine virus (strain Copenhagen) and bovine diarrhea virus (strain VC-1). Peculiarities of heterocyclic systems with electron-withdrawing groups (polyfluoroalkyl-containing antipyrines) in Pd-catalyzed C–H arylation and cross-coupling reactions.![]()
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Affiliation(s)
- Evgeny V Shchegolkov
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
| | - Yanina V Burgart
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
| | - Daria A Matsneva
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
| | - Sophia S Borisevich
- Ufa Institute of Chemistry, Russian Academy of Sciences 71 October Ave. Ufa 450054 Russia
| | - Renata A Kadyrova
- Saint Petersburg Pasteur Research Institute of Epidemiology and Microbiology 14 Mira St. Saint-Petersburg 197101 Russia
| | - Iana R Orshanskaya
- Saint Petersburg Pasteur Research Institute of Epidemiology and Microbiology 14 Mira St. Saint-Petersburg 197101 Russia
| | - Vladimir V Zarubaev
- Saint Petersburg Pasteur Research Institute of Epidemiology and Microbiology 14 Mira St. Saint-Petersburg 197101 Russia
| | - Victor I Saloutin
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
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Agafonova N, Shchegolkov E, Burgart Y, Saloutin V, Trefilova A, Triandafilova G, Solodnikov S, Maslova V, Krasnykh O, Borisevich S, Khursan S. Synthesis and Biological Evaluation of Polyfluoroalkylated Antipyrines and their Isomeric O-Methylpyrazoles. Med Chem 2019; 15:521-536. [DOI: 10.2174/1573406414666181106145435] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 10/19/2018] [Accepted: 10/30/2018] [Indexed: 11/22/2022]
Abstract
Background:
Formally belonging to the non-steroidal anti-inflammatory drug class
pyrazolones have long been used in medical practices.
Objective:
Our goal is to synthesize N-methylated 1-aryl-3-polyfluoroalkylpyrazolones as fluorinated
analogs of antipyrine, their isomeric O-methylated derivatives resembling celecoxib structure
and evaluate biological activities of obtained compounds.
Methods:
In vitro (permeability) and in vivo (anti-inflammatory and analgesic activities, acute toxicity,
hyperalgesia, antipyretic activity, “open field” test) experiments. To suggest the mechanism
of biological activity, molecular docking of the synthesized compounds was carried out into the
tyrosine site of COX-1/2.
Conclusion:
The trifluoromethyl antipyrine represents a valuable starting point in design of the
lead series for discovery new antipyretic analgesics with anti-inflammatory properties.
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Affiliation(s)
- Natalya Agafonova
- Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Sciences, S. Kovalevskoy Str., 22, Ekaterinburg 620990, Russian Federation
| | - Evgeny Shchegolkov
- Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Sciences, S. Kovalevskoy Str., 22, Ekaterinburg 620990, Russian Federation
| | - Yanina Burgart
- Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Sciences, S. Kovalevskoy Str., 22, Ekaterinburg 620990, Russian Federation
| | - Victor Saloutin
- Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Sciences, S. Kovalevskoy Str., 22, Ekaterinburg 620990, Russian Federation
| | - Alexandra Trefilova
- Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm 614990, Russian Federation
| | - Galina Triandafilova
- Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm 614990, Russian Federation
| | - Sergey Solodnikov
- Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm 614990, Russian Federation
| | - Vera Maslova
- Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm 614990, Russian Federation
| | - Olga Krasnykh
- Perm National Research Polytechnic University, Komsomolsky Av., 29, Perm 614990, Russian Federation
| | - Sophia Borisevich
- Ufa Institute of Chemistry of the Russian Academy of Sciences, Octyabrya Av., 71, Ufa 450078, Russian Federation
| | - Sergey Khursan
- Ufa Institute of Chemistry of the Russian Academy of Sciences, Octyabrya Av., 71, Ufa 450078, Russian Federation
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