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Sumran G, Jain N, Kumar P, Aggarwal R. Trifluoromethyl-β-dicarbonyls as Versatile Synthons in Synthesis of Heterocycles. Chemistry 2024; 30:e202303599. [PMID: 38055226 DOI: 10.1002/chem.202303599] [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: 10/31/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/07/2023]
Abstract
Trifluoromethyl group relishes a privileged position in the realm of medicinal chemistry because its incorporation into organic molecules often enhances the bioactivity by altering pharmacological profile of molecule. Trifluoromethyl-β-dicarbonyls have emerged as pivotal building blocks in synthetic organic chemistry due to their facile accessibility, stability and remarkable versatility. Owing to presence of nucleophilic and electrophilic sites, they offer multifunctional sites for the reaction. This review covers a meticulous exploration of their multifaceted role, encompassing an in-depth analysis of mechanism, extensive scope, limitations and wide-ranging applications in diverse organic synthesis, covering the literature from the 21st century. This comprehensive review encapsulates the applications of trifluoromethyl-β-dicarbonyls and their synthetic equivalents as precursors of complex and diverse heterocyclic scaffolds, fused heterocycles and spirocyclic compounds having medicinal and material importance. Their potent synthetic utility in cyclocondensation reactions with binucleophiles, cycloaddition reactions, C-C bond formations, asymmetric multicomponent reactions using classical/solvent-free/catalytic synthesis have been presented. Influence of unsymmetrical trifluoromethyl-β-diketones on regioselectivity of transformation is also reviewed. This review will benefit the synthetic and pharmaceutical communities to explore trifluoromethyl-β-dicarbonyls as trifluoromethyl building blocks for fabrication of heterocyclic scaffolds having implementation into drug discovery programs in the imminent future.
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Affiliation(s)
- Garima Sumran
- Department of Chemistry, D. A. V. College (Lahore), Ambala City, 134 003, Haryana, India
| | - Naman Jain
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119, India
| | - Prince Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119, India
| | - Ranjana Aggarwal
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119, India
- CSIR-National Institute of Science Communication and Policy Research, New Delhi, 110012, India
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2
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Wang Q, Jung H, Kim D, Chang S. Iridium-Catalyzed Migratory Terminal C(sp 3)-H Amidation of Heteroatom-Substituted Internal Alkenes via Olefin Chain Walking. J Am Chem Soc 2023. [PMID: 37906814 DOI: 10.1021/jacs.3c09679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Hydroamination facilitated by metal hydride catalysis is an appealing synthetic approach to access valuable nitrogen-containing compounds from readily available unsaturated hydrocarbons. While high regioselectivity can be achieved usually for substrates bearing polar chelation groups, the reaction involving simple alkenes frequently provides nonselective outcomes. Herein, we report an iridium-catalyzed highly regioselective terminal C(sp3)-H amidation of internal alkenes utilizing dioxazolones as an amino source via olefin chain walking. Most notably, this mechanistic motif of double bond migration to the terminal position operates not only with dialkyl-substituted simple alkenes including styrenes but also with heteroatom-substituted olefins such as enol ethers, vinyl silanes, and vinyl borons, thus representing the first example of the terminal methyl amidation of the latter type of alkenes through a nondissociative chain walking process.
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Affiliation(s)
- Qing Wang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Hoimin Jung
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Dongwook Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Sukbok Chang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
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3
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Morgan KD. The use of nitrogen-15 in microbial natural product discovery and biosynthetic characterization. Front Microbiol 2023; 14:1174591. [PMID: 37234518 PMCID: PMC10206073 DOI: 10.3389/fmicb.2023.1174591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 04/17/2023] [Indexed: 05/28/2023] Open
Abstract
This mini-review covers the use of nitrogen-15 in bacterial and fungal natural product discovery and biosynthetic characterization from 1970 to 2022. Nitrogen is an important element in a number of bioactive and structurally intriguing natural products including alkaloids, non-ribosomal peptides, and hybrid natural products. Nitrogen-15 can be detected at natural abundance utilizing two-dimensional nuclear magnetic resonance and mass spectrometry. Additionally, it is a stable isotope that can be added to growth media for both filamentous fungi and bacteria. With stable isotope feeding, additional two-dimensional nuclear magnetic resonance and mass spectrometry strategies have become available, and there is a growing trend to use nitrogen-15 stable isotope feeding for the biosynthetic characterization of natural products. This mini-review will catalog the use of these strategies, analyze the strengths and weaknesses of the different approaches, and suggest future directions for the use of nitrogen-15 in natural product discovery and biosynthetic characterization.
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4
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Sheina ES, Shestakova TS, Deev SL, Khalymbadzha IA, Slepukhin PA, Eltsov OS, Novikov AS, Shevyrin VA, Charushin VN, Chupakhin ON. Mesomeric Betaines Based on Adamantylated 1,2,4-Triazolo[4,3-a]pyrimidin-5-ones: Synthesis, Structure and Conversion into Anionic N-Heterocyclic Carbenes. Chem Asian J 2023; 18:e202201306. [PMID: 36662627 DOI: 10.1002/asia.202201306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 01/18/2023] [Indexed: 01/21/2023]
Abstract
The C-N coupling of 1,2,4-triazolo[1,5-a]pyrimidin-7-ones with 1-adamantanol/1-bromoadamantane leads to 1,2,4-triazolo[4,3-a]pyrimidinium-5-olates, which are represented as mesomeric betaines (MBs). The formation of MBs involves not only N-alkylation of heterocyclic framework but also the rearrangement leading to a change in the type of fusion between pyrimidine and 1,2,4-triazole fragments. The structures of the obtained products were confirmed by the X-ray analysis and measurements of 13 C-13 C (JCC ) coupling constants in the 1D 13 C NMR spectra of selectively 13 C-labeled samples. Treatment of the betaines with lithium bis(trimethylsilyl)amide (LiHMDS) gave anionic carbenes, which were detected by 13 C NMR spectroscopy and were trapped by reactions with phenyl isothiocyanate and sulfur. Density functional theory (DFT) and the quantum theory of atoms in molecules (QTAIM) analyses allowed for an insight into the electronic structure of the obtained betaines and N-heterocyclic carbene derivatives.
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Affiliation(s)
- Ekaterina S Sheina
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia
| | - Tatyana S Shestakova
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia
| | - Sergey L Deev
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia
| | - Igor A Khalymbadzha
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia.,Postovsky Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russia
| | - Pavel A Slepukhin
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia.,Postovsky Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russia
| | - Oleg S Eltsov
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia
| | - Alexander S Novikov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 198504, Russia.,Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Str., Moscow, 117198, Russia
| | - Vadim A Shevyrin
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia
| | - Valery N Charushin
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia.,Postovsky Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russia
| | - Oleg N Chupakhin
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia.,Postovsky Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russia
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5
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Zhou Z, Kweon J, Jung H, Kim D, Seo S, Chang S. Photoinduced Transition-Metal-Free Chan-Evans-Lam-Type Coupling: Dual Photoexcitation Mode with Halide Anion Effect. J Am Chem Soc 2022; 144:9161-9171. [PMID: 35549253 DOI: 10.1021/jacs.2c03343] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, we report a photoinduced transition-metal-free C(aryl)-N bond formation between 2,4,6-tri(aryl)boroxines or arylboronic acids as an aryl source and 1,4,2-dioxazol-5-ones (dioxazolones) as an amide coupling partner. Chloride anion, either generated in situ by photodissociation of chlorinated solvent molecules or added separately as an additive, was found to play a critical cooperative role, thereby giving convenient access to a wide range of synthetically versatile N-arylamides under mild photo conditions. The synthetic virtue of this transition-metal-free Chan-Evans-Lam-type coupling was demonstrated by large-scale reactions, synthesis of 15N-labeled arylamides, and applicability toward biologically relevant compounds. On the basis of mechanistic investigations, two distinctive photoexcitations are proposed to function in the current process, in which the first excitation involving chloro-boron adduct facilitates the transition-metal-free activation of dioxazolones by single electron transfer (SET), and the second one enables the otherwise-inoperative 1,2-aryl migration of the thus-formed N-chloroamido-borate adduct.
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Affiliation(s)
- Zijun Zhou
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 34141, South Korea
| | - Jeonguk Kweon
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 34141, South Korea
| | - Hoimin Jung
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 34141, South Korea
| | - Dongwook Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 34141, South Korea
| | - Sangwon Seo
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 34141, South Korea
| | - Sukbok Chang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 34141, South Korea
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6
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Artem'ev GA, Rusinov VL, Kopchuk DS, Savchuk MI, Santra S, Ulomsky EN, Zyryanov GV, Majee A, Du W, Charushin VN, Chupakhin ОN. Synthetic approaches to 1,2,4-triazolo[5,1- c][1,2,4]triazin-7-ones as basic heterocyclic structures of the antiviral drug Riamilovir ("Triazavirin®") active against SARS-CoV-2 (COVID-19). Org Biomol Chem 2022; 20:1828-1837. [PMID: 35137762 DOI: 10.1039/d1ob02125g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fragments of 1,2,4-triazolo[5,1-c][1,2,4]triazin-7-one are found in many compounds with various types of biological activities, including the antiviral drug Riamilovir (Triazavirin®), which shows activity against SARS-CoV-2 (COVID-19). Therefore, the development of convenient methods for the synthesis of new derivatives of 1,2,4-triazolo[5,1-c][1,2,4]triazin-7-one is always in demand. This review systematizes the information on the most common synthetic methods for constructing the 1,2,4-triazolo[5,1-c][1,2,4]triazin-7-one heterocyclic system.
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Affiliation(s)
- Grigory A Artem'ev
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russian Federation
- Ural Federal University, 19 Mira str., Yekaterinburg, 620002, Russian Federation.
| | - Vladimir L Rusinov
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russian Federation
- Ural Federal University, 19 Mira str., Yekaterinburg, 620002, Russian Federation.
| | - Dmitry S Kopchuk
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russian Federation
- Ural Federal University, 19 Mira str., Yekaterinburg, 620002, Russian Federation.
| | - Maria I Savchuk
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russian Federation
- Ural Federal University, 19 Mira str., Yekaterinburg, 620002, Russian Federation.
| | - Sougata Santra
- Ural Federal University, 19 Mira str., Yekaterinburg, 620002, Russian Federation.
| | - Eugeny N Ulomsky
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russian Federation
- Ural Federal University, 19 Mira str., Yekaterinburg, 620002, Russian Federation.
| | - Grigory V Zyryanov
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russian Federation
- Ural Federal University, 19 Mira str., Yekaterinburg, 620002, Russian Federation.
| | - Adinath Majee
- Department of Chemistry; Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Weijie Du
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Valery N Charushin
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russian Federation
- Ural Federal University, 19 Mira str., Yekaterinburg, 620002, Russian Federation.
| | - Оleg N Chupakhin
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS, 22 S. Kovalevskoy Str., Yekaterinburg, 620219, Russian Federation
- Ural Federal University, 19 Mira str., Yekaterinburg, 620002, Russian Federation.
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7
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Xiao G, Xu S, Xie C, Zi G, Ye W, Zhou Z, Hou G, Zhang Z. Enantioselective Synthesis of Chiral Substituted 2,4-Diketoimidazolidines and 2,5-Diketopiperazines via Asymmetric Hydrogenation. Org Lett 2021; 23:5734-5738. [PMID: 34240880 DOI: 10.1021/acs.orglett.1c01894] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An enantioselective hydrogenation of 5-alkylidene-2,4-diketoimidazolidines (hydantoins) and 3-alkylidene-2,5-ketopiperazines catalyzed by the Rh/f-spiroPhos complex under mild conditions has been developed, which provides an efficient approach to the highly enantioselective synthesis of chiral hydantoins and 2,5-ketopiperazine derivatives with high enantioselectivities up to 99.9% ee.
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Affiliation(s)
- Guiying Xiao
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Shuang Xu
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Chaochao Xie
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | | | | | - Guohua Hou
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China.,Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhanbin Zhang
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
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Ivanov SM. Reversed steric order of reactivity for
tert
‐butyl and adamantyl‐3‐cyanomethylene‐1,2,4‐triazines. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sergey M. Ivanov
- Laboratory of Medicinal chemistry (N17) N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Moscow Russia
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9
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Fischer G. Recent advances in 1,2,4-triazolo[1,5-a]pyrimidine chemistry. ADVANCES IN HETEROCYCLIC CHEMISTRY 2019. [DOI: 10.1016/bs.aihch.2018.10.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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10
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Deev SL, Khalymbadzha IA, Shestakova TS, Charushin VN, Chupakhin ON. 15N labeling and analysis of 13C–15N and 1H–15N couplings in studies of the structures and chemical transformations of nitrogen heterocycles. RSC Adv 2019; 9:26856-26879. [PMID: 35528595 PMCID: PMC9070671 DOI: 10.1039/c9ra04825a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 08/19/2019] [Indexed: 11/21/2022] Open
Abstract
This review provides a generalization of effective examples of 15N labeling followed by an analysis of JCN and JHN couplings in solution as a tool to study the structural aspects and pathways of chemical transformations in nitrogen heterocycles.
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Affiliation(s)
- Sergey L. Deev
- Ural Federal University
- 620002 Yekaterinburg
- Russian Federation
- I. Ya. Postovsky Institute of Organic Synthesis
- 620219 Yekaterinburg
| | | | | | - Valery N. Charushin
- Ural Federal University
- 620002 Yekaterinburg
- Russian Federation
- I. Ya. Postovsky Institute of Organic Synthesis
- 620219 Yekaterinburg
| | - Oleg N. Chupakhin
- Ural Federal University
- 620002 Yekaterinburg
- Russian Federation
- I. Ya. Postovsky Institute of Organic Synthesis
- 620219 Yekaterinburg
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