1
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Coelho D, Colas Y, Ethève-Quelquejeu M, Braud E, Iannazzo L. Halo-1,2,3-triazoles: Valuable Compounds to Access Biologically Relevant Molecules. Chembiochem 2024; 25:e202400150. [PMID: 38554039 DOI: 10.1002/cbic.202400150] [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: 02/19/2024] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/01/2024]
Abstract
1,2,3-triazole is an important building block in organic chemistry. It is now well known as a bioisostere for various functions, such as the amide or the ester bond, positioning it as a key pharmacophore in medicinal chemistry and it has found applications in various fields including life sciences. Attention was first focused on the synthesis of 1,4-disubstituted 1,2,3-triazole molecules however 1,4,5-trisubstituted 1,2,3-triazoles have now emerged as valuable molecules due to the possibility to expand the structural modularity. In the last decade, methods mainly derived from the copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction have been developed to access halo-triazole compounds and have been applied to nucleosides, carbohydrates, peptides and proteins. In addition, late-stage modification of halo-triazole derivatives by metal-mediated cross-coupling or halo-exchange reactions offer the possibility to access highly functionalized molecules that can be used as tools for chemical biology. This review summarizes the synthesis, the functionalization, and the applications of 1,4,5-trisubstituted halo-1,2,3-triazoles in biologically relevant molecules.
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Affiliation(s)
- Dylan Coelho
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, Université Paris Cité, CNRS, F-75006, Paris, France
| | - Yoann Colas
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, Université Paris Cité, CNRS, F-75006, Paris, France
| | - Mélanie Ethève-Quelquejeu
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, Université Paris Cité, CNRS, F-75006, Paris, France
| | - Emmanuelle Braud
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, Université Paris Cité, CNRS, F-75006, Paris, France
| | - Laura Iannazzo
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, Université Paris Cité, CNRS, F-75006, Paris, France
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2
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Li J, Hong C, Niu Y, Wang B, Jiang H. Palladium-Catalyzed Cyclization/Alkenylation of Ynone Oximes with Vinylsilanes for the Assembly of Isoxazolyl Vinylsilanes. Chem Asian J 2024:e202301122. [PMID: 38224122 DOI: 10.1002/asia.202301122] [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: 12/18/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 01/16/2024]
Abstract
A palladium-catalyzed cascade cyclization/alkenylation for the assembly of synthetically valuable isoxazolyl vinylsilane derivative has been accomplished. Easily accessible ynone oximes, and available vinylsilane agents were used as the reaction starting materials This protocol features broad substrate scope, good functional group tolerance, and good step- and atom-economy. Remarkably, this approach provides a new approach for the construction of structurally diverse isoxazolyl-containing vinylsilanes with high molecular complexity, showing a promising application in synthetic and pharmaceutical chemistry.
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Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
- Guangdong Province Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, 512005, Shaoguan, P. R. China
| | - Chenjing Hong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
| | - Yanan Niu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
| | - Bowen Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
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3
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Kobayashi K, Kasakura N, Kikukawa S, Matsumoto S, Karasawa S, Hata T. Facile preparation of polycyclic halogen-substituted 1,2,3-triazoles by using intramolecular Huisgen cycloaddition. Org Biomol Chem 2023. [PMID: 38015119 DOI: 10.1039/d3ob01283b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
When 1-(ω-azidoalkyl)-2-(2,2-dihalovinyl)arenes were heated in DMF, the intramolecular Huisgen cycloaddition of an azido group with a 1,1-dihalovinyl group afforded 5-halo-1,2,3-triazole-fused tricyclic benzo compounds. Based on the remaining bromo groups, carbon elongation by the Mizoroki-Heck or Suzuki-Miyaura coupling reactions, followed by an intramolecular Friedel-Crafts reaction, afforded polycyclic compounds with fused triazole rings. Thereafter, the bromo groups were converted into 2-nitrophenyl groups via the Suzuki-Miyaura coupling reaction, which was followed by the Cadogan reaction; a fluorescent pentacyclic compound was obtained.
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Affiliation(s)
- Kazuki Kobayashi
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259-B-59 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan.
| | - Nozomi Kasakura
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259-B-59 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan.
| | - Seiya Kikukawa
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259-B-59 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan.
| | - Shota Matsumoto
- Faculty of Pharmaceutical Sciences, Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida 194-8543, Japan
| | - Satoru Karasawa
- Faculty of Pharmaceutical Sciences, Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida 194-8543, Japan
| | - Takeshi Hata
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259-B-59 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan.
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4
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Tang Y, Huang M, Jiang L, Zhang X, Zheng S, Yang Y, Chen XY. Visible-Light-Irradiated Multicomponent Reactions of Aliphatic Amines, Propiolate Acid Esters, and CF 3 SO 2 Na for Accessing β-CF 3 Enamines. Chemistry 2023; 29:e202302249. [PMID: 37572319 DOI: 10.1002/chem.202302249] [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: 07/14/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/14/2023]
Abstract
A novel one-pot two-step multicomponent reaction has been achieved for the preparation of β-CF3 enamines by using different aliphatic amines, propiolates, and CF3 SO2 Na as starting material. In this protocol, various aliphatic amines including primary amines, cyclic or acyclic secondary amines were demonstrated to be good coupling partners, and different β-CF3 enamines were obtained in moderate to good yields. Among them, the primary aliphatic amines only gave pure (E)-β-CF3 enamines as products. The synthetic utility of the MCRs strategy was further demonstrated by mild conditions, gram-scale synthesis and natural sunlight-induced protocol. Preliminary mechanistic studies suggest that this trifluoromethylation of C(sp2 )-H involves radical process.
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Affiliation(s)
- Yisong Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Mingyang Huang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Liang Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Xiaotong Zhang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Shaojun Zheng
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Yong Yang
- College of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou, 320500, P. R. China
| | - Xiao Yun Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
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5
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Nusser BD, Accardo JV, Zhu L. Luminescence and Stability of 1,4,5-Triaryl-1,2,3-Triazoles. Chemphyschem 2023; 24:e202300209. [PMID: 37395382 DOI: 10.1002/cphc.202300209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/04/2023]
Abstract
The fluorescence, phosphorescence, and photochemical properties of di- and triaryl-substituted-1,2,3-triazoles are reported in this work. The ease of synthesis of regioisomers of substituted triazoles enables a systematic study on the correlation between regiochemistry and excited state properties, which include the solvent dependence of fluorescence, energy gap between singlet and triplet emitters, and propensity to photon-triggered transformations. The triazoles that carry electron (e)-donor and e-acceptor aryl substituents show high fluorescence quantum yields in weakly polar solvents and exhibit solvent-dependent fluorescence. The luminescence properties of these compounds in glass matrices at 77 K are characterized. The thermal and photo-stability, two parameters that are crucial to their potential utilities in optical devices, of these compounds are determined. The position of the e-donor substituent has a significant impact on the fluorescence emission energy and solvent sensitivity, singlet-triplet energy gap, and photochemical reactivity and stability. The experimental observations on the structural correlation with the photophysical and photochemical properties are explained by quantum chemical calculations. This study provides a rationale on the placement of substituent on a donor-acceptor type fluorophore to maneuver a range of photo-related properties.
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Affiliation(s)
- Brandon D Nusser
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306-4390, USA
| | - Joseph V Accardo
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306-4390, USA
| | - Lei Zhu
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306-4390, USA
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6
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Philippov I, Gatilov Y, Sonina A, Vorob’ev A. Oxidative [3+2]Cycloaddition of Alkynylphosphonates with Heterocyclic N-Imines: Synthesis of Pyrazolo[1,5- a]Pyridine-3-phosphonates. Molecules 2022; 27:molecules27227913. [PMID: 36432015 PMCID: PMC9694626 DOI: 10.3390/molecules27227913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 11/19/2022] Open
Abstract
A series of pyrazolo[1,5-a]pyridine-3-ylphosphonates were prepared with moderate to good yields by the oxidative [3+2]cycloaddition of 2-subtituted ethynylphosphonates with in situ generated pyridinium-N-imines and their annulated analogs. 2-Aliphatic and 2-Ph acetylenes demonstrate low activity, and the corresponding pyrazolopyridines were achieved with a moderate yield in the presence of 10 mol% Fe(NO3)3·9H2O. At the same time, tetraethyl ethynylbisphosphonate, diethyl 2-TMS- and 2-OPh-ethynylphosphonates possess much greater reactivity and the corresponding pyrazolo[1,5-a]pyridines, and their annulated derivatives were obtained with good to excellent yields without any catalyst. 2-Halogenated ethynylphosphonates also readily reacted with pyridinium-N-imines, forming complex mixtures containing poor amounts of 2-halogenated pyrazolopyridines.
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Affiliation(s)
- Igor Philippov
- Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Avenue, 630090 Novosibirsk, Russia
| | - Yuriy Gatilov
- Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Avenue, 630090 Novosibirsk, Russia
| | - Alina Sonina
- Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Avenue, 630090 Novosibirsk, Russia
| | - Aleksey Vorob’ev
- Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Avenue, 630090 Novosibirsk, Russia
- Department of Natural Science, Faculty of Organic Chemistry, Novosibirsk State University, 1 Pirogova Street, 630090 Novosibirsk, Russia
- Correspondence: ; Tel.: +7-952-9488714
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7
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Fang S, Chen W, Jiang H, Ma R, Wu W. Palladium-catalyzed oxidative C-H activation/annulation of N-alkylanilines with bromoalkynes: access to functionalized 3-bromoindoles. Chem Commun (Camb) 2022; 58:9666-9669. [PMID: 35946388 DOI: 10.1039/d2cc03298h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A straightforward approach to the synthesis of 3-bromoindoles via palladium-catalyzed oxidative C-H activation/annulation of N-alkylanilines with bromoalkynes has been described. This protocol features high atom economy, excellent chemo- and regioselectivities, and good functional group tolerance. Moreover, the resultant 3-bromoindoles can be transformed to various functionalized indole derivatives, which demonstrates the practicability of this method in organic synthesis.
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Affiliation(s)
- Songjia Fang
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Wenhao Chen
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Huanfeng Jiang
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Ruize Ma
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Wanqing Wu
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
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8
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Duan M, Hou G, Zhao Y, Zhu C, Song C. Synthesis of Isoxazoles via One-Pot Oxidation/Cyclization Sequence from Propargylamines. J Org Chem 2022; 87:11222-11225. [PMID: 35912706 DOI: 10.1021/acs.joc.2c00896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A facile strategy for the synthesis of isoxazoles has been efficaciously developed, which involves oxidation of propargylamines to the corresponding oximes followed by CuCl-mediated intramolecular cyclization of the latter. This protocol shows a straightforward way to construct a series of isoxazole cores with a wide range of functional group compatibility. Meanwhile, a gram-scale experiment and synthetic applications can be successfully operated.
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Affiliation(s)
- Mengyan Duan
- College of Chemistry, and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
| | - Guodong Hou
- College of Chemistry, and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
| | - Yabiao Zhao
- College of Chemistry, and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
| | - Congjun Zhu
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Chuanjun Song
- College of Chemistry, and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
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9
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Schmidt L, Wagner D, Nieger M, Bräse S. Functionalized C3-Symmetric Building Blocks—The Chemistry of Triaminotrimesic Acid. Molecules 2022; 27:molecules27144369. [PMID: 35889238 PMCID: PMC9322044 DOI: 10.3390/molecules27144369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 12/02/2022] Open
Abstract
A series of C3-symmetric fully substituted benzenes were prepared based on alkyl triamino-benzene-tricarboxylates. Starting with a one step-synthesis, the alkyl triamino-benzene-tricarboxylates were synthesized using the corresponding cyanoacetates. The reactivity of these electronically sophisticated compounds was investigated by the formation of azides, the click reaction of the azides and a Sandmeyer-like reaction. Caused by the low stability of triaminobenzenes, direct N-alkylation was rarely reported. The use of the stable alkyl triamino-benzene-tricarboxylates allowed us total N-alkylation under standard alkylation conditions. The molecular structures of the C3-symmetric structures have been corroborated by an X-ray analysis.
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Affiliation(s)
- Lisa Schmidt
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (L.S.); (D.W.)
| | - Danny Wagner
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (L.S.); (D.W.)
| | - Martin Nieger
- Department of Chemistry, University of Helsinki, P.O. Box 55 (A. I. Virtasen aukio 1), FIN-00014 Helsinki, Finland;
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (L.S.); (D.W.)
- Institute of Biological and Chemical Systems—FMS, Karlsruhe Institute of Technology (KIT), Hermann-Von-Helmholtz-Platz 1, 76344 Leopoldshafen, Germany
- Correspondence: ; Tel.: +49-721-608-42903; Fax: +49-721-608-48581
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10
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Li T, Dief EM, Kalužná Z, MacGregor M, Foroutan-Nejad C, Darwish N. On-Surface Azide-Alkyne Cycloaddition Reaction: Does It Click with Ruthenium Catalysts? LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:5532-5541. [PMID: 35470670 PMCID: PMC9097529 DOI: 10.1021/acs.langmuir.2c00100] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/11/2022] [Indexed: 05/12/2023]
Abstract
Owing to its simplicity, selectivity, high yield, and the absence of byproducts, the "click" azide-alkyne reaction is widely used in many areas. The reaction is usually catalyzed by copper(I), which selectively produces the 1,4-disubstituted 1,2,3-triazole regioisomer. Ruthenium-based catalysts were later developed to selectively produce the opposite regioselectivity─the 1,5-disubstituted 1,2,3-triazole isomer. Ruthenium-based catalysis, however, remains only tested for click reactions in solution, and the suitability of ruthenium catalysts for surface-based click reactions remains unknown. Also unknown are the electrical properties of the 1,4- and 1,5-regioisomers, and to measure them, both isomers need to be assembled on the electrode surface. Here, we test whether ruthenium catalysts can be used to catalyze surface azide-alkyne reactions to produce 1,5-disubstituted 1,2,3-triazole, and compare their electrochemical properties, in terms of surface coverages and electron transfer kinetics, to those of the compound formed by copper catalysis, 1,4-disubstituted 1,2,3-triazole isomer. Results show that ruthenium(II) complexes catalyze the click reaction on surfaces yielding the 1,5-disubstituted isomer, but the rate of the reaction is remarkably slower than that of the copper-catalyzed reaction, and this is related to the size of the catalyst involved as an intermediate in the reaction. The electron transfer rate constant (ket) for the ruthenium-catalyzed reaction is 30% of that measured for the copper-catalyzed 1,4-isomer. The lower conductivity of the 1,5-isomer is confirmed by performing nonequilibrium Green's function computations on relevant model systems. These findings demonstrate the feasibility of ruthenium-based catalysis of surface click reactions and point toward an electrical method for detecting the isomers of click reactions.
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Affiliation(s)
- Tiexin Li
- School
of Molecular and Life Sciences, Curtin University, Bentley, Western Australia 6102, Australia
| | - Essam M. Dief
- School
of Molecular and Life Sciences, Curtin University, Bentley, Western Australia 6102, Australia
| | - Zlatica Kalužná
- Institute
of Organic Chemistry, Polish Academy of
Sciences, Kasprzaka 44/52, 01-224Warsaw, Poland
- University
of Warsaw, Faculty of Physics, Pasteura 5, 00-092Warsaw, Poland
| | - Melanie MacGregor
- Flinders
Institute for Nanoscale Science & Technology, Flinders University, Bedford
Park, South Australia5042, Australia
| | - Cina Foroutan-Nejad
- Institute
of Organic Chemistry, Polish Academy of
Sciences, Kasprzaka 44/52, 01-224Warsaw, Poland
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, Flemingovo nám. 2, CZ-16610Prague, Czech Republic
| | - Nadim Darwish
- School
of Molecular and Life Sciences, Curtin University, Bentley, Western Australia 6102, Australia
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11
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Hossain MI, Khan MIH, Kim SJ, Le HV. Synthesis of 3,4,5-trisubstituted isoxazoles in water via a [3 + 2]-cycloaddition of nitrile oxides and 1,3-diketones, β-ketoesters, or β-ketoamides. Beilstein J Org Chem 2022; 18:446-458. [PMID: 35529890 PMCID: PMC9039522 DOI: 10.3762/bjoc.18.47] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 04/08/2022] [Indexed: 11/23/2022] Open
Abstract
Herein we report a method for the synthesis of 3,4,5-trisubstituted isoxazoles in water under mild basic conditions at room temperature via a [3 + 2]-cycloaddition of nitrile oxides and 1,3-diketones, β-ketoesters, or β-ketoamides. We optimized the reaction conditions to control the selectivity of the production of isoxazoles and circumvent other competing reactions, such as O-imidoylation or hetero [3 + 2]-cycloaddition. The reaction happens fast in water and completes within 1–2 hours, which provides an environmentally friendly access to 3,4,5-trisubstituted isoxazoles, an important class of structures found in numerous bioactive natural products and pharmaceuticals. Additionally, we optimized the reaction conditions to produce trifluoromethyl-substituted isoxazoles, a prevalent scaffold in biomedical research and drug discovery programs. We also proposed a plausible mechanism for the selectivity of the [3 + 2]-cycloaddition reaction to produce 3,4,5-trisubstituted isoxazoles. Not to be overlooked are our optimized reaction conditions for the dimerization of hydroximoyl chlorides to form furoxans also known as 1,2,5-oxadiazole 2-oxides, a class of structures with important biological activities due to their unique electronic nature and coordination ability.
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Affiliation(s)
- Md Imran Hossain
- Department of BioMolecular Sciences and Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, Mississippi 38677, USA
| | - Md Imdadul H Khan
- Department of BioMolecular Sciences and Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, Mississippi 38677, USA
| | - Seong Jong Kim
- Natural Products Utilization Research Unit, United States Department of Agriculture, Agricultural Research Service, University of Mississippi, Mississippi 38677, USA
| | - Hoang V Le
- Department of BioMolecular Sciences and Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, Mississippi 38677, USA
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12
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Wang KK, Li YL, Zhao YC, Zhang SS, Chen R, Sun A. Facile synthesis of O-acylhydroxamates via reaction of oxime chlorides with carboxylic acids. RSC Adv 2021; 11:40193-40196. [PMID: 35494140 PMCID: PMC9044751 DOI: 10.1039/d1ra06860a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 12/03/2021] [Indexed: 12/16/2022] Open
Abstract
A simple and efficient method for the synthesis of O-acylhydroxamate derivatives from oxime chlorides and carboxylic acids was developed. The reaction affords clean and facile access to diverse O-acylhydroxamates in high yields (up to 85%). The chemical structure of a typical product was confirmed using single-crystal X-ray structure analysis.
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Affiliation(s)
- Kai-Kai Wang
- School of Pharmacy, Xinxiang University Xinxiang 453000 P. R. China +86-373-3682674
- Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province Xinxiang 453000 P. R. China
| | - Yan-Li Li
- Medical College, Xinxiang University Xinxiang 453000 P. R. China
| | - Ying-Chao Zhao
- School of Pharmacy, Xinxiang University Xinxiang 453000 P. R. China +86-373-3682674
| | - Shan-Shan Zhang
- School of Pharmacy, Xinxiang University Xinxiang 453000 P. R. China +86-373-3682674
| | - Rongxiang Chen
- School of Pharmacy, Xinxiang University Xinxiang 453000 P. R. China +86-373-3682674
| | - Aili Sun
- School of Pharmacy, Xinxiang University Xinxiang 453000 P. R. China +86-373-3682674
- Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province Xinxiang 453000 P. R. China
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13
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Cheremnykh KP, Savelyev VA, Shults EE. An Efficient Access to 3,5‐Disubstituted Isoxazoles with Anthranilate Ester Moiety: Alkaloid Lappaconitine – Aryl Conjugates with an Isoxazole Linker. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kirill P. Cheremnykh
- Laboratory of Medicinal Chemistry Novosibirsk institute of Organic Chemistry Lavrentyev Ave 9 630090 Novosibirsk Russian Federation
| | - Victor A. Savelyev
- Laboratory of Medicinal Chemistry Novosibirsk institute of Organic Chemistry Lavrentyev Ave 9 630090 Novosibirsk Russian Federation
| | - Elvira E. Shults
- Laboratory of Medicinal Chemistry Novosibirsk institute of Organic Chemistry Lavrentyev Ave 9 630090 Novosibirsk Russian Federation
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14
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Arenas JL, Crousse B. An Overview of 4‐ and 5‐Halo‐1,2,3‐triazoles from Cycloaddition Reactions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- José Laxio Arenas
- BioCIS, UMR 8076 CNRS Univ. Paris Saclay, Univ. Paris Sud Chatenay Malabry France
| | - Benoît Crousse
- BioCIS, UMR 8076 CNRS Univ. Paris Saclay, Univ. Paris Sud Chatenay Malabry France
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15
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Doerksen RS, Hodík T, Hu G, Huynh NO, Shuler WG, Krische MJ. Ruthenium-Catalyzed Cycloadditions to Form Five-, Six-, and Seven-Membered Rings. Chem Rev 2021; 121:4045-4083. [PMID: 33576620 DOI: 10.1021/acs.chemrev.0c01133] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ruthenium-catalyzed cycloadditions to form five-, six-, and seven-membered rings are summarized, including applications in natural product total synthesis. Content is organized by ring size and reaction type. Coverage is limited to processes that involve formation of at least one C-C bond. Processes that are stoichiometric in ruthenium or exploit ruthenium as a Lewis acid (without intervention of organometallic intermediates), ring formations that occur through dehydrogenative condensation-reduction, σ-bond activation-initiated annulations that do not result in net reduction of bond multiplicity, and photochemically promoted ruthenium-catalyzed cycloadditions are not covered.
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Affiliation(s)
- Rosalie S Doerksen
- Department of Chemistry, University of Texas at Austin,, Welch Hall (A5300), 105 East 24th Street, Austin, Texas 78712, United States
| | - Tomáš Hodík
- Department of Chemistry, University of Texas at Austin,, Welch Hall (A5300), 105 East 24th Street, Austin, Texas 78712, United States
| | - Guanyu Hu
- Department of Chemistry, University of Texas at Austin,, Welch Hall (A5300), 105 East 24th Street, Austin, Texas 78712, United States
| | - Nancy O Huynh
- Department of Chemistry, University of Texas at Austin,, Welch Hall (A5300), 105 East 24th Street, Austin, Texas 78712, United States
| | - William G Shuler
- Department of Chemistry, University of Texas at Austin,, Welch Hall (A5300), 105 East 24th Street, Austin, Texas 78712, United States
| | - Michael J Krische
- Department of Chemistry, University of Texas at Austin,, Welch Hall (A5300), 105 East 24th Street, Austin, Texas 78712, United States
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16
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Feng Q, Huang H, Sun J. Ru-Catalyzed [3 + 2] Cycloaddition of Nitrile Oxides and Electron-Rich Alkynes with Reversed Regioselectivity. Org Lett 2021; 23:2431-2436. [PMID: 33750136 DOI: 10.1021/acs.orglett.1c00273] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Polarity reversal ("umpolung") of a functional group can override its inherent reactivity and lead to distinct bond-forming modes. Herein we describe a rarely studied cycloaddition between nitrile oxides and electron-rich alkynes with reversed regioselectivity, leading to the useful 4-heterosubstituted isoxazoles. The use of a ruthenium catalyst completely overrides the inherent polarity of nitrile oxides. This reversed regioselectivity was also observed for their reactions with a range of electron-deficient alkynes.
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Affiliation(s)
- Qiang Feng
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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17
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Gharpure SJ, Naveen S, Chavan RS, Padmaja. Regioselective Synthesis of Halotriazoles and their Utility in Metal Catalyzed Coupling Reactions. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000973] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Santosh J. Gharpure
- Department of Chemistry Indian Institute of Technology Bombay 400076 Powai Mumbai India
| | - Sudi Naveen
- Department of Chemistry Indian Institute of Technology Bombay 400076 Powai Mumbai India
| | - Rupali S. Chavan
- Department of Chemistry Indian Institute of Technology Bombay 400076 Powai Mumbai India
| | - Padmaja
- Department of Chemistry Indian Institute of Technology Bombay 400076 Powai Mumbai India
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18
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Silvestri AP, Oakdale JS. Intermolecular cyclotrimerization of haloketoalkynes and internal alkynes: facile access to arenes and phthalides. Chem Commun (Camb) 2020; 56:13417-13420. [PMID: 33035282 DOI: 10.1039/d0cc05706a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly chemo- and regioselective cyclo(co)trimerization between 3-halopropiolamides and symmetrical internal alkynes is reported. The reaction is catalyzed by CpRuCl(COD) and proceeds under air at ambient temperature in ethanol with no additional precautions. Iodo-, bromo-, and chloropropiolamides, esters, and ketones are viable coupling partners and, in a 2 : 1 stoichiometry relative to internal alkyne, yield fully-substituted arenes in a single step. The highest regioselectivities (96% single isomer) were observed when employing 2° and 3°-halopropiolamides. A mechanistic hypothesis accounting for this selectivity is proposed. Notably, by using 1,4-butynediol as the internal alkyne, in situ lactonization following [2+2+2]-cycloaddition generates therapeutically-relevant phthalide pharmacophores directly.
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Affiliation(s)
- A P Silvestri
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
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19
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Ma J, Ding S. Transition Metal‐Catalyzed Cycloaddition of Azides with Internal Alkynes. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000486] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jiahao Ma
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering Beijing University of Chemical Technology North Third Ring Road 15 Beijing 100029 P. R. China
| | - Shengtao Ding
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering Beijing University of Chemical Technology North Third Ring Road 15 Beijing 100029 P. R. China
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20
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Diethyl (iodoethynyl)phosphonate and (iodoethynyl)diphenylphosphane oxide: crystal structures and some cycloaddition reactions. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2020. [DOI: 10.1515/znb-2020-0047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The title compounds are difunctionalized acetylenic building blocks, which can serve as electrophilic dienophiles and dipolarophiles in [4+2] and azide-iodoalkyne [3+2] cycloaddition reactions, which, however, require strong thermal activation. In their crystal structures, they are self-complementary tectons, which are arranged in polymeric chains maintained by very short intermolecular Csp–I···O=P halogen bonds.
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21
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Ueda M, Kokubun M, Mazaki Y. Triskelion‐Shaped π‐Luminophores Bearing Coumarin: Syntheses, Structures, and Luminescence Properties. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Masafumi Ueda
- Department of Chemistry, Graduate School of Science Kitasato University 1-15-1 Kitasato Minami-ku Sagamihara Kanagawa 252-0373 Japan
| | - Mirai Kokubun
- Department of Chemistry, Graduate School of Science Kitasato University 1-15-1 Kitasato Minami-ku Sagamihara Kanagawa 252-0373 Japan
| | - Yasuhiro Mazaki
- Department of Chemistry, Graduate School of Science Kitasato University 1-15-1 Kitasato Minami-ku Sagamihara Kanagawa 252-0373 Japan
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22
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A decade of advances in the reaction of nitrogen sources and alkynes for the synthesis of triazoles. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213217] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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23
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A sustainable access to ynones through laccase/TEMPO-catalyzed metal- and halogen-free aerobic oxidation of propargylic alcohols in aqueous medium. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.105946] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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24
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Cheng B, Duan X, Li Y, Zhang X, Li H, Wu F, Li Y, Wang T, Zhai H. Development and Application of Pyridinium 1,4-Zwitterionic Thiolates: Synthesis of Polysubstituted Thiophenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000165] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Bin Cheng
- Shenzhen Polytechnic; Institute of Marine Biomedicine; 518055 Shenzhen China
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 730000 Lanzhou China
| | - Xiaoguang Duan
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 730000 Lanzhou China
| | - Yuntong Li
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 730000 Lanzhou China
| | - Xinping Zhang
- Shenzhen Polytechnic; Institute of Marine Biomedicine; 518055 Shenzhen China
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 730000 Lanzhou China
| | - Hui Li
- Shenzhen Polytechnic; Institute of Marine Biomedicine; 518055 Shenzhen China
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 730000 Lanzhou China
| | - Fufang Wu
- School of Chemistry and Materials Engineering; Fuyang Normal University; 236037 Fuyang China
| | - Yun Li
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 730000 Lanzhou China
| | - Taimin Wang
- Shenzhen Polytechnic; Institute of Marine Biomedicine; 518055 Shenzhen China
| | - Hongbin Zhai
- Shenzhen Polytechnic; Institute of Marine Biomedicine; 518055 Shenzhen China
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 730000 Lanzhou China
- State Key Laboratory of Chemical Oncogenomics; Shenzhen Engineering Laboratory of Nano Drug Slow-Release; Peking University Shenzhen Graduate School; 518055 Shenzhen China
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25
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Yang JJ, Yu WW, Hu LL, Liu WJ, Lin XH, Wang W, Zhang Q, Wang PL, Tang SW, Wang X, Liu M, Lu W, Zhang HK. Discovery and Characterization of 1 H-1,2,3-Triazole Derivatives as Novel Prostanoid EP4 Receptor Antagonists for Cancer Immunotherapy. J Med Chem 2020; 63:569-590. [PMID: 31855426 DOI: 10.1021/acs.jmedchem.9b01269] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The prostanoid EP4 receptor is one of the key receptors associated with inflammatory mediator PGE2-elicited immunosuppression in the tumor microenvironment. Blockade of EP4 signaling to enhance immunity-mediated tumor elimination has recently emerged as a promising strategy for cancer immunotherapy. In our efforts to discover novel subtype-selective EP4 antagonists, we designed and synthesized a class of 1H-1,2,3-triazole-based ligands that display low nanomolar antagonism activity toward the human EP4 receptor and excellent subtype selectivity. The most promising compound 59 exhibits single-digit nanomolar potency in the EP4 calcium flux and cAMP-response element reporter assays and effectively suppresses the expression of multiple immunosuppression-related genes in macrophage cells. On the basis of its favorable ADMET properties, compound 59 was chosen for further in vivo biological evaluation. Oral administration of compound 59 significantly inhibited tumor growth in the mouse CT26 colon carcinoma model accompanied by enhanced infiltration of cytotoxic T lymphocytes in the tumor tissue.
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Affiliation(s)
- Jun-Jie Yang
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Wei-Wei Yu
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Long-Long Hu
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Wen-Juan Liu
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Xian-Hua Lin
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Wei Wang
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Qiansen Zhang
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Pei-Li Wang
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Shuo-Wen Tang
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Xin Wang
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Mingyao Liu
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Weiqiang Lu
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Han-Kun Zhang
- Drug Discovery Unit, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
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26
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Li J, Lin Z, Wu W, Jiang H. Recent advances in metal catalyzed or mediated cyclization/functionalization of alkynes to construct isoxazoles. Org Chem Front 2020. [DOI: 10.1039/d0qo00609b] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarized the recent developments in metal catalyzed or mediated cyclization/functionalization of alkynes to construct isoxazoles.
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Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Zidong Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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27
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Jana S, Adhikari S, Cox MR, Roy S. Regioselective synthesis of 4-fluoro-1,5-disubstituted-1,2,3-triazoles from synthetic surrogates of α-fluoroalkynes. Chem Commun (Camb) 2020; 56:1871-1874. [DOI: 10.1039/c9cc09216a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This TFA-catalyzed [3+2] cycloaddition of organic azides with α-fluoronitroalkenes, used as synthetic surrogates of α-fluoroalkynes, provides a new route to multi-substituted fluorotriazoles with broader substrate scopes and high regioselectivity.
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Affiliation(s)
- Sampad Jana
- Department of BioMolecular Sciences
- School of Pharmacy
- University of Mississippi
- University
- USA
| | - Sweta Adhikari
- Department of BioMolecular Sciences
- School of Pharmacy
- University of Mississippi
- University
- USA
| | - Michael R. Cox
- Department of BioMolecular Sciences
- School of Pharmacy
- University of Mississippi
- University
- USA
| | - Sudeshna Roy
- Department of BioMolecular Sciences
- School of Pharmacy
- University of Mississippi
- University
- USA
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28
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Suntrup L, Beerhues J, Etzold O, Sarkar B. Copper( i) complexes bearing mesoionic carbene ligands: influencing the activity in catalytic halo-click reactions. Dalton Trans 2020; 49:15504-15510. [DOI: 10.1039/d0dt02023k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of mono- and dicopper complexes with mesoionic carbenes are tested as pre-catalysts for the halo-click reaction.
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Affiliation(s)
- Lisa Suntrup
- Freie Universität Berlin
- Institut für Chemie und Biochemie
- D-14195 Berlin
- Germany
| | - Julia Beerhues
- Freie Universität Berlin
- Institut für Chemie und Biochemie
- D-14195 Berlin
- Germany
- Lehrstuhl für Anorganische Koordinationschemie
| | - Oliver Etzold
- Freie Universität Berlin
- Institut für Chemie und Biochemie
- D-14195 Berlin
- Germany
| | - Biprajit Sarkar
- Freie Universität Berlin
- Institut für Chemie und Biochemie
- D-14195 Berlin
- Germany
- Lehrstuhl für Anorganische Koordinationschemie
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29
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Meijer FA, Doveston RG, de Vries RMJM, Vos GM, Vos AAA, Leysen S, Scheepstra M, Ottmann C, Milroy LG, Brunsveld L. Ligand-Based Design of Allosteric Retinoic Acid Receptor-Related Orphan Receptor γt (RORγt) Inverse Agonists. J Med Chem 2019; 63:241-259. [PMID: 31821760 PMCID: PMC6956242 DOI: 10.1021/acs.jmedchem.9b01372] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
![]()
Retinoic acid receptor-related orphan receptor γt
(RORγt) is a nuclear receptor associated with the pathogenesis
of autoimmune diseases. Allosteric inhibition of RORγt is conceptually
new, unique for this specific nuclear receptor, and offers advantages
over traditional orthosteric inhibition. Here, we report a highly
efficient in silico-guided approach that led to the discovery of novel
allosteric RORγt inverse agonists with a distinct isoxazole
chemotype. The the most potent compound, 25 (FM26), displayed submicromolar inhibition in a coactivator recruitment
assay and effectively reduced IL-17a mRNA production in EL4 cells,
a marker of RORγt activity. The projected allosteric mode of
action of 25 was confirmed by biochemical experiments
and cocrystallization with the RORγt ligand binding domain.
The isoxazole compounds have promising pharmacokinetic properties
comparable to other allosteric ligands but with a more diverse chemotype.
The efficient ligand-based design approach adopted demonstrates its
versatility in generating chemical diversity for allosteric targeting
of RORγt.
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Affiliation(s)
- Femke A Meijer
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands
| | - Richard G Doveston
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands.,Leicester Institute of Structural and Chemical Biology and Department of Chemistry , University of Leicester , University Road , Leicester LE1 7RH , U.K
| | - Rens M J M de Vries
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands
| | - Gaël M Vos
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands
| | - Alex A A Vos
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands
| | - Seppe Leysen
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands
| | - Marcel Scheepstra
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands
| | - Christian Ottmann
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands
| | - Lech-Gustav Milroy
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands
| | - Luc Brunsveld
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands
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30
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Wang XD, Zhu LH, Liu P, Wang XY, Yuan HY, Zhao YL. Copper-Catalyzed Cascade Cyclization Reactions of Diazo Compounds with tert-Butyl Nitrite and Alkynes: One-Pot Synthesis of Isoxazoles. J Org Chem 2019; 84:16214-16221. [PMID: 31779304 DOI: 10.1021/acs.joc.9b02760] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel copper-catalyzed [3 + 2] cycloaddition reaction of alkynes with nitrile oxides generated in situ from the coupling reaction of copper carbene and nitroso radical has been developed. The three-component reaction provides a simple and efficient method for the construction of isoxazoles in a highly regioselective manner in a single step. On the basis of the experimental results and density functional theory calculations, a catalytic cycle (CuI-CuII-Cu0-CuI) for this cascade cyclization reaction is proposed.
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Affiliation(s)
- Xue-Di Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Li-Han Zhu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Pei Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Xin-Yu Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Hai-Yan Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry , Northeast Normal University , Changchun 130024 , China
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31
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Barak DS, Dahatonde DJ, Batra S. Microwave‐Assisted Metal‐Free Decarboxylative Iodination/Bromination of Isoxazole‐4‐carboxylic Acids. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900572] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Dinesh S. Barak
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031, Uttar Pradesh India
| | - Dipak J. Dahatonde
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031, Uttar Pradesh India
| | - Sanjay Batra
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031, Uttar Pradesh India
- Academy of Scientific and Innovative ResearchCSIR- Human Resource Development Centre (CSIR-HRDC) Campus, Sector 19, Kamla Nehru Nagar Ghaziabad- 201002, Uttar Pradesh India
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32
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Tikhonova TA, Rassokhina IV, Kondrakhin EA, Fedosov MA, Bukanova JV, Rossokhin AV, Sharonova IN, Kovalev GI, Zavarzin IV, Volkova YA. Development of 1,3-thiazole analogues of imidazopyridines as potent positive allosteric modulators of GABA A receptors. Bioorg Chem 2019; 94:103334. [PMID: 31711764 DOI: 10.1016/j.bioorg.2019.103334] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 09/17/2019] [Accepted: 09/30/2019] [Indexed: 12/14/2022]
Abstract
Structure-activity relationship studies were conducted in the search for 1,3-thiazole isosteric analogs of imidazopyridine drugs (Zolpidem, Alpidem). Three series of novel γ-aminobutyric acid receptor (GABAAR) ligands belonging to imidazo[2,1-b]thiazoles, imidazo[2,1-b][1,3,4]thiadiazoles, and benzo[d]imidazo[2,1-b]thiazoles were synthesized and characterized as active agents against GABAAR benzodiazepine-binding site. In each of these series, potent compounds were discovered using a radioligand competition binding assay. The functional properties of highest-affinity compounds 28 and 37 as GABAAR positive allosteric modulators (PAMs) were determined by electrophysiological measurements. In vivo studies on zebrafish demonstrated their potential for the further development of anxiolytics. Using the OECD "Fish, Acute Toxicity Test" active compounds were found safe and non-toxic. Structural bases for activity of benzo[d]imidazo[2,1-b]thiazoles were proposed using molecular docking studies. The isosteric replacement of the pyridine nuclei by 1,3-thiazole, 1,3,4-thiadiazole, or 1,3-benzothiazole in the ring-fused imidazole class of GABAAR PAMs was shown to be promising for the development of novel hypnotics, anxiolytics, anticonvulsants, and sedatives drug-candidates.
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Affiliation(s)
- Tatyana A Tikhonova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia
| | - Irina V Rassokhina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia
| | - Eugeny A Kondrakhin
- V. V. Zakusov Institute of Pharmacology, Russian Academy of Sciences, 8 Baltiyskaya Str., 125315 Moscow, Russia
| | - Mikhail A Fedosov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia
| | - Julia V Bukanova
- Research Center of Neurology, 5 By-str. Obukha, 105064 Moscow, Russia
| | | | - Irina N Sharonova
- Research Center of Neurology, 5 By-str. Obukha, 105064 Moscow, Russia
| | - Georgy I Kovalev
- V. V. Zakusov Institute of Pharmacology, Russian Academy of Sciences, 8 Baltiyskaya Str., 125315 Moscow, Russia
| | - Igor V Zavarzin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia
| | - Yulia A Volkova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia.
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33
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Arafa WAA, Nayl AEA. Water as a solvent for Ru‐catalyzed click reaction: Highly efficient recyclable catalytic system for triazolocoumarins synthesis. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5156] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Wael Abdelgayed Ahmed Arafa
- Chemistry Department, College of ScienceJouf University P.O. Box 2014 Sakaka, Aljouf Kingdom of Saudi Arabia
- Chemistry Department, Faculty of ScienceFayoum University P.O. Box 63514 Fayoum City Egypt
| | - Abd El‐Aziz Ahmed Nayl
- Chemistry Department, College of ScienceJouf University P.O. Box 2014 Sakaka, Aljouf Kingdom of Saudi Arabia
- Hot Laboratories CenterAtomic Energy Authority of Egypt P.O. 13759 Inshas, Cairo Egypt
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34
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Aldrich KE, Fales BS, Singh AK, Staples RJ, Levine BG, McCracken J, Smith MR, Odom AL. Electronic and Structural Comparisons between Iron(II/III) and Ruthenium(II/III) Imide Analogs. Inorg Chem 2019; 58:11699-11715. [DOI: 10.1021/acs.inorgchem.9b01672] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kelly E. Aldrich
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824, United States
| | - B. Scott Fales
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824, United States
| | - Amrendra K. Singh
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824, United States
| | - Richard J. Staples
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824, United States
| | - Benjamin G. Levine
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824, United States
| | - John McCracken
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824, United States
| | - Milton R. Smith
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824, United States
| | - Aaron L. Odom
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824, United States
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35
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Paulson ER, Moore CE, Rheingold AL, Pullman DP, Sindewald RW, Cooksy AL, Grotjahn DB. Dynamic π-Bonding of Imidazolyl Substituent in a Formally 16-Electron Cp*Ru(κ2-P,N)+ Catalyst Allows Dramatic Rate Increases in (E)-Selective Monoisomerization of Alkenes. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04345] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Erik R. Paulson
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1030, United States
| | - Curtis E. Moore
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - David P. Pullman
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1030, United States
| | - Ryan W. Sindewald
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1030, United States
| | - Andrew L. Cooksy
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1030, United States
| | - Douglas B. Grotjahn
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1030, United States
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36
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Maksimenko AS, Kislyi VP, Chernysheva NB, Strelenko YA, Zubavichus YV, Khrustalev VN, Semenova MN, Semenov VV. Effective Synthesis of 3,4-Diaryl-isoxazole-5-carboxamides and their Antiproliferative Properties. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900643] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Anna S. Maksimenko
- N. D. Zelinsky Institute of Organic Chemistry RAS; 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Victor P. Kislyi
- N. D. Zelinsky Institute of Organic Chemistry RAS; 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Natalia B. Chernysheva
- N. D. Zelinsky Institute of Organic Chemistry RAS; 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Yuri A. Strelenko
- N. D. Zelinsky Institute of Organic Chemistry RAS; 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Yan V. Zubavichus
- Russian Research Centre “Kurchatov Institute”; Kurchatov sq. 1 123182 Moscow Russian Federation
| | - Victor N. Khrustalev
- Peoples' Friendship University of Russia (RUDN University); 117198 Moscow Russian Federation
| | - Marina N. Semenova
- N. K. Koltzov Institute of Developmental Biology RAS; 26 Vavilov Street 119334 Moscow Russian Federation
| | - Victor V. Semenov
- N. D. Zelinsky Institute of Organic Chemistry RAS; 47 Leninsky Prospect 119991 Moscow Russian Federation
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37
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General Platform for the Conversion of Isoxazol-5-ones to 3,5-Disubstituted Isoxazoles via Nucleophilic Substitutions and Palladium Catalyzed Cross-Coupling Strategies. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900187] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Design and synthesis of Fe3O4@SiO2/aza-crown ether-Cu(II) as a novel and highly efficient magnetic nanocomposite catalyst for the synthesis of 1,2,3-triazoles, 1-substituted 1H-tetrazoles and 5-substituted 1H-tetrazoles in green solvents. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.01.039] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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39
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Sengoku T, Ikeda I, Ai K, Takahashi M, Yoda H. Indium- and zinc-catalyzed enantioselective amide propargylation of aldehydes with stannylated allenyl amides. Org Biomol Chem 2019; 17:2614-2618. [PMID: 30762059 DOI: 10.1039/c9ob00040b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The catalytic enantioselective propargylation of aldehydes with newly prepared stannyl allenyl amides is described. The reaction has been accomplished by using catalytic amounts of indium chloride, zinc chloride, and a chiral BINOL derivative, affording amide-functionalized homopropargyl alcohols in excellent yields and enantioselectivities.
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Affiliation(s)
- Tetsuya Sengoku
- Department of Applied Chemistry, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan.
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40
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Gribanov PS, Chesnokov GA, Dzhevakov PB, Kirilenko NY, Rzhevskiy SA, Ageshina AA, Topchiy MA, Bermeshev MV, Asachenko AF, Nechaev MS. Solvent-free Suzuki and Stille cross-coupling reactions of 4- and 5-halo-1,2,3-triazoles. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.03.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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41
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Lemport PS, Smolyar IV, Khrustalev VN, Roznyatovsky VA, Popov AV, Kobelevskaya VA, Rozentsveig IB, Nenajdenko VG. 3,3-Diazidoenones – new types of highly reactive bis-azides. Preparation and synthetic transformations. Org Chem Front 2019. [DOI: 10.1039/c8qo01214h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of highly reactive 3,3-diazidoenones was obtained. Their chemistry was investigated by both experimental studies and DFT calculations.
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Affiliation(s)
- Pavel S. Lemport
- Department of Chemistry
- Lomonosov Moscow State University
- Moscow
- Russian Federation
| | - Ivan V. Smolyar
- Department of Chemistry
- Lomonosov Moscow State University
- Moscow
- Russian Federation
| | - Victor N. Khrustalev
- Department of Inorganic Chemistry
- Peoples’ Friendship University of Russia
- Russian Federation
| | | | - Alexander V. Popov
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy of Sciences
- Russian Federation
| | - Valentina A. Kobelevskaya
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy of Sciences
- Russian Federation
| | - Igor B. Rozentsveig
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy of Sciences
- Russian Federation
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42
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Yang W, Yao Y, Yang X, Deng Y, Lin Q, Yang D. Synthesis of C4-alkynylisoxazoles via a Pd-catalyzed Sonogashira cross-coupling reaction. RSC Adv 2019; 9:8894-8904. [PMID: 35517684 PMCID: PMC9061866 DOI: 10.1039/c9ra00577c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 03/06/2019] [Indexed: 12/24/2022] Open
Abstract
A Pd-catalyzed Sonogashira cross-coupling reaction for the synthesis of C4-alkynylisoxazoles from 3,5-disubsitituted-4-iodoisoxazoles and terminal alkynes was described, which could afford the corresponding products with high yield (up to 98%). The results indicated that the steric effect from the group at the C3 position of the isoxazole had greater influence on the cross-coupling reaction than that from the group at the C5 position. In addition, the group at the C3 position of the isoxazole showed negligible electronic effects on the cross-coupling reaction. Furthermore, a gram-scale reaction of the Sonogashira coupling reaction was also investigated. Finally, a plausible mechanism for the Sonogashira coupling reaction was proposed. A Pd-catalyzed Sonogashira cross-coupling reaction for the synthesis of C4-alkynylisoxazoles from 3,5-disubsitituted-4-iodoisoxazoles and terminal alkynes was described, which could afford the corresponding products with high yield (up to 98%).![]()
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Affiliation(s)
- Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Yongqi Yao
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Xin Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Yingying Deng
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Qifu Lin
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
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43
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1,4-Unsubstituted 2-phosphorylated vinylacetylenes as valuable phosphorus-containing dipolarophiles. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.11.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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44
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Base-promoted 1,3-dipolar cycloaddition reaction of nitrile oxides with methyl 1,4-dioxo-1,4-dihydronaphthalene-2-carboxylate for the construction of naphtho[2,3- d ]isoxazole-4,9(3a H ,9a H )-diones. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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45
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Borodina T, Marchenko I, Trushina D, Volkova Y, Shirinian V, Zavarzin I, Kondrakhin E, Kovalev G, Kovalchuk M, Bukreeva T. A novel formulation of zolpidem for direct nose-to-brain delivery: synthesis, encapsulation and intranasal administration to mice. ACTA ACUST UNITED AC 2018; 70:1164-1173. [PMID: 29956328 DOI: 10.1111/jphp.12958] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 06/03/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Anxiolytic drug zolpidem was incorporated into the microcontainers based on mesoporous calcium carbonate particles modified by diethylaminoethyl-dextran/hyaluronic acid shell. The release of zolpidem in saline solution and in polymer film modelling nasal mucosa was investigated. The anxiolytic effect of zolpidem upon intranasal administration of microcontainers and free medicine was determined by in vivo experiments on mice. METHODS The structures of all compounds during zolpidem synthesis were established using nuclear magnetic resonance spectroscopy. The loading efficacy and release kinetics of zolpidem were analysed by spectrophotometry. Surface morphology of formulation was investigated by scanning electron microscopy. To determine the effect of zolpidem-loaded containers administration by the intranasal route in vivo experiments was carried out applying the open field test. KEY FINDINGS Nasal administration of zolpidem in the form of the microcontainers based on mesoporous calcium carbonate particles modified by diethylaminoethyl-dextran/hyaluronic acid shell has a pronounced anxiolytic effect on the behaviour of the animals in the open field test. CONCLUSIONS The polyelectrolyte shell deposited together with zolpidem enhances the loading efficacy of the microcontainers. In vivo experiments on mice demonstrate increase in anxiolytic effect of zolpidem in microcontainers compared with upon intranasal administration of free medicine.
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Affiliation(s)
- Tatiana Borodina
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, Moscow, Russia.,Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Irina Marchenko
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, Moscow, Russia.,National Research Centre "Kurchatov Institute", Moscow, Russia
| | - Daria Trushina
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, Moscow, Russia.,Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Moscow, Russia.,National Research Centre "Kurchatov Institute", Moscow, Russia
| | - Yulia Volkova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Valerii Shirinian
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Igor Zavarzin
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | | | | | - Mikhail Kovalchuk
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, Moscow, Russia.,National Research Centre "Kurchatov Institute", Moscow, Russia
| | - Tatiana Bukreeva
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, Moscow, Russia.,National Research Centre "Kurchatov Institute", Moscow, Russia
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46
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Sağirli A, Dürüst Y. Regioselective synthesis of some isoxazolines and isoxazolidines bearing caprolactam moiety. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1448934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Akın Sağirli
- Department of Chemistry, Abant İzzet Baysal University, Bolu, Turkey
| | - Yaşar Dürüst
- Department of Chemistry, Abant İzzet Baysal University, Bolu, Turkey
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47
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Syntheses, structures and properties of magnetically active copper(II) compounds with 3-amino-5-(4-methylphenyl)isoxazole. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.02.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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48
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Agrawal N, Mishra P. The synthetic and therapeutic expedition of isoxazole and its analogs. Med Chem Res 2018; 27:1309-1344. [PMID: 32214770 PMCID: PMC7079875 DOI: 10.1007/s00044-018-2152-6] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 02/01/2018] [Indexed: 11/28/2022]
Abstract
Isoxazole, constituting an important family of five-membered heterocycles with one oxygen atom and one nitrogen atom at adjacent positions is of immense importance because of its wide spectrum of biological activities and therapeutic potential. It is, therefore, of prime importance that the development of new synthetic strategies and designing of new isoxazole derivatives should be based on the most recent knowledge emerging from the latest research. This review is an endeavor to highlight the progress in the chemistry and biological activity of isoxazole derivatives which could provide a low-height flying bird's eye view of isoxazole derivatives to the medicinal chemists for the development of clinically viable drugs using this information.
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Affiliation(s)
- Neetu Agrawal
- Institute of Pharmaceutical Research, GLA University, Mathura, U.P. India
| | - Pradeep Mishra
- Institute of Pharmaceutical Research, GLA University, Mathura, U.P. India
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49
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Chalyk BA, Sosedko AS, Volochnyuk DM, Tolmachev AA, Gavrilenko KS, Liashuk OS, Grygorenko OO. Regioselective synthesis of isoxazole and 1,2,4-oxadiazole-derived phosphonates via [3 + 2] cycloaddition. Org Biomol Chem 2018; 16:9152-9164. [DOI: 10.1039/c8ob02257g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The regioselective synthesis of 3,4- and 3,5-disubstituted izoxazole- and 1,2,4-oxadiazole-derived phosphonates is described, including analogues of phosphohistidine.
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Affiliation(s)
- Bohdan A. Chalyk
- Enamine Ltd
- Kyiv 02094
- Ukraine
- Institute of Organic Chemistry
- National Academy of Sciences of Ukraine
| | - Alona S. Sosedko
- Enamine Ltd
- Kyiv 02094
- Ukraine
- National Taras Shevchenko University of Kyiv
- Kyiv 01601
| | - Dmitriy M. Volochnyuk
- Enamine Ltd
- Kyiv 02094
- Ukraine
- Institute of Organic Chemistry
- National Academy of Sciences of Ukraine
| | - Andrey A. Tolmachev
- Enamine Ltd
- Kyiv 02094
- Ukraine
- National Taras Shevchenko University of Kyiv
- Kyiv 01601
| | | | - Oleksandr S. Liashuk
- Enamine Ltd
- Kyiv 02094
- Ukraine
- National Taras Shevchenko University of Kyiv
- Kyiv 01601
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50
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Zhang B, Shan G, Ma Q, Xu Q, Lei X. An improved and scalable synthesis of zolpidem via a CuI/BINOL-mediated tandem reaction of imine and alkyne. HETEROCYCL COMMUN 2017. [DOI: 10.1515/hc-2017-0152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AbstractAn improved and scalable method for the synthesis of zolpidem (
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