1
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Zheng L, Chen K, Xie Y, Huang J, Xia C, Bao YX, Bi H, Wang J, Zhou ZZ. Discovery of novel N 2-indazole derivatives as phosphodiesterase 4 inhibitors for the treatment of inflammatory bowel disease. Eur J Med Chem 2024; 277:116710. [PMID: 39098133 DOI: 10.1016/j.ejmech.2024.116710] [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: 04/18/2024] [Revised: 07/16/2024] [Accepted: 07/23/2024] [Indexed: 08/06/2024]
Abstract
Inflammatory bowel disease (IBD) is a chronic and progressive condition with a significant global burden. Currently, available treatments primarily provide symptomatic relief and retard disease progression, yet they do not offer a cure and are frequently associated with adverse effects. Therefore, the discovery of new targets and therapeutic drugs for IBD is crucial. Phosphodiesterase 4 (PDE4) inhibitors have emerged as promising candidates in the search for effective IBD treatments, although dose-dependent side effects hamper their clinical utility. In this study, building upon heterocyclic biaryl derivatives (TPA16), we designed and synthesized a series of N2-substituted indazole-based PDE4D inhibitors, emphasizing improving safety profiles. An enzyme activity screening discovered an optimized compound, LZ-14 (Z21115), which exhibited high PDE4D7 (IC50 = 10.5 nM) inhibitory activity and good selectivity. More interestingly, LZ-14 has demonstrated promising effects in treating IBD in mouse models by improving the inflammatory response and colon injury. Furthermore, LZ-14 displayed low emetogenic potential in ketamine/xylazine anesthesia mice alternative models.
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Affiliation(s)
- Lei Zheng
- Innovation Program of Drug Research on Neurological and Metabolic Diseases, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Kun Chen
- Innovation Program of Drug Research on Neurological and Metabolic Diseases, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yifan Xie
- Innovation Program of Drug Research on Neurological and Metabolic Diseases, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jiaxi Huang
- Innovation Program of Drug Research on Neurological and Metabolic Diseases, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Chuang Xia
- Innovation Program of Drug Research on Neurological and Metabolic Diseases, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Ying-Xia Bao
- Guangzhou Baiyunshan Pharmaceutical Co. Ltd., Guangzhou Baiyunshan Pharmaceutical General Factory, Guangzhou, China
| | - Huichang Bi
- Innovation Program of Drug Research on Neurological and Metabolic Diseases, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jigang Wang
- Innovation Program of Drug Research on Neurological and Metabolic Diseases, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China; Department of Urology, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Zhong-Zhen Zhou
- Innovation Program of Drug Research on Neurological and Metabolic Diseases, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
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2
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Yashmin S, A M K, Khan AT. Utilization of DMSO as a solvent-cum-reactant: synthesis of fused 2-aryl-4-methylquinolines. Org Biomol Chem 2024; 22:5608-5617. [PMID: 38910410 DOI: 10.1039/d4ob00938j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Herein, we disclose the synthesis of a variety of disubstituted fused quinoline, such as 4-methyl-2-arylbenzo[h]quinolines (3a-j), 1-methyl-3-arylbenzo[f]quinolines (3k-r), 1-methyl-3-arylnaphtho[2,3-f]quinolines (3s-x), and 2-aryl-5,7-dimethoxy-4-methylquinolines (4a-c), derivatives from the reaction of an aryl aldehyde with 1-naphthylamine (1a), 2-naphthylamine (1b), 2-aminoanthracene (1c) and 3,5-dimethoxyaniline (1d), respectively, at 80 °C in the presence of 30 mol% (±)-10-camphorsulfonic acid ((±)-CSA) using DMSO as the solvent-cum-reactant. DMSO molecules regioselectively incorporate three carbon atoms into the target molecule in this distinct reaction. The other advantages of the present protocol are that it can be performed under mild reaction conditions and does not require metal catalysts, additional additives or oxidants.
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Affiliation(s)
- Sabina Yashmin
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Karthik A M
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Abu Taleb Khan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
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3
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Prekob Á, Szegedi MP, Muránszky G, Kristály F, Nagy M, Halasi G, Szamosvölgyi Á, Fiser B, Viskolcz B, Vanyorek L. Development of Magnetizable, Nickel-Ferrite-Decorated Carbon Nanocomposites as Hydrogenation Catalyst for Aniline Synthesis. Int J Mol Sci 2023; 24:17547. [PMID: 38139374 PMCID: PMC10743656 DOI: 10.3390/ijms242417547] [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: 11/17/2023] [Revised: 12/07/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
Catalysts with magnetic properties can be easily recovered from the reaction medium without loss by using a magnetic field, which highly improves their applicability. To design such systems, we have successfully combined the magnetic properties of nickel ferrite nanoparticles with the positive properties of carbon-based catalyst supports. Amine-functionalized NiFe2O4 nanoparticles were deposited on the surfaces of nitrogen-doped bamboo-like carbon nanotubes (N-BCNT) and carbon nanolayers (CNL) by using a coprecipitation process. The magnetizable catalyst supports were decorated by Pd nanoparticles, and their catalytic activity was tested through the hydrogenation of nitrobenzene (NB). By using the prepared catalysts, high nitrobenzene conversion (100% for 120 min at 333 K) and a high aniline yield (99%) were achieved. The Pd/NiFe2O4-CNL catalyst was remarkable in terms of stability during the reuse tests due to the strong interaction formed between the catalytically active metal and its support (the activity was retained during four cycles of 120 min at 333 K). Furthermore, despite the long-lasting mechanical stress, no significant palladium loss (only 0.08 wt%) was detected.
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Affiliation(s)
- Ádám Prekob
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515 Miskolc, Hungary; (Á.P.); (M.P.S.); (G.M.); (M.N.); (B.V.)
| | - Máté Péter Szegedi
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515 Miskolc, Hungary; (Á.P.); (M.P.S.); (G.M.); (M.N.); (B.V.)
| | - Gábor Muránszky
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515 Miskolc, Hungary; (Á.P.); (M.P.S.); (G.M.); (M.N.); (B.V.)
| | - Ferenc Kristály
- Institute of Mineralogy and Geology, University of Miskolc, Miskolc-Egyetemváros, 3515 Miskolc, Hungary;
| | - Miklós Nagy
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515 Miskolc, Hungary; (Á.P.); (M.P.S.); (G.M.); (M.N.); (B.V.)
| | - Gyula Halasi
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla Square 1., 6720 Szeged, Hungary; (G.H.); (Á.S.)
- ELI-ALPS, ELI-HU Non-Profit Ltd., Wolfgang Sandner Utca 3., H-6728 Szeged, Hungary
| | - Ákos Szamosvölgyi
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla Square 1., 6720 Szeged, Hungary; (G.H.); (Á.S.)
| | - Béla Fiser
- Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, 3515 Miskolc, Hungary
- Ferenc Rakoczi II Transcarpathian Hungarian College of Higher Education, 90200 Beregszász, Ukraine
- Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, 90-236 Lodz, Poland
| | - Béla Viskolcz
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515 Miskolc, Hungary; (Á.P.); (M.P.S.); (G.M.); (M.N.); (B.V.)
- Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, 3515 Miskolc, Hungary
| | - László Vanyorek
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515 Miskolc, Hungary; (Á.P.); (M.P.S.); (G.M.); (M.N.); (B.V.)
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4
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Mohammadi P, Heravi MM, Mohammadi L, Saljooqi A. Preparation of magnetic biochar functionalized by polyvinyl imidazole and palladium nanoparticles for the catalysis of nitroarenes hydrogenation and Sonogashira reaction. Sci Rep 2023; 13:17375. [PMID: 37833352 PMCID: PMC10576072 DOI: 10.1038/s41598-023-44292-3] [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: 02/10/2023] [Accepted: 10/05/2023] [Indexed: 10/15/2023] Open
Abstract
Catalysts are essential materials in biotechnology, medicine, industry, and chemistry. On the other hand, recycling and using waste materials is important in economic efficiency and green chemistry. Thus, biochar was prepared from the stem and roots of the Spear Thistle to recover waste. After magnetizing the biochar, its surface was modified with polyvinyl imidazole. Finally, this modified biochar was decorated with Pd nanoparticles and used as a selective and recyclable nanocatalyst in the hydrogenation of nitroarenes and the Sonogashira reaction. The structure of this organic-inorganic nanocatalyst has been characterized by FESEM-EDS, XRD, FT-IR, TEM, and VSM techniques. In the hydrogenation reaction with the amount of 30 mg of nanocatalyst, the temperature of 50 °C in the water solvent, the reaction efficiency reached 99% for 30 min. In addition, under optimal conditions for the Sonogashira reaction: 1.0 mmol iodobenzene, 1.2 mmol phenylacetylene, 20 mg MBC-PVIm/Pd, 2 mmol K2CO3 in H2O at 50 C for 15 min, the reaction efficiency reached 95%. The recyclability of magnetic nanocatalysts was investigated and recognized this nanocatalyst can be used several times without notable loss of its activity.
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Affiliation(s)
- Pourya Mohammadi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, PO. Box 1993891176, Vanak, Tehran, Iran
| | - Majid M Heravi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, PO. Box 1993891176, Vanak, Tehran, Iran.
| | - Leila Mohammadi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, PO. Box 1993891176, Vanak, Tehran, Iran
| | - Asma Saljooqi
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
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5
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Li C, Shao YB, Gao X, Ren Z, Guo C, Li M, Li X. Enantioselective synthesis of chiral quinohelicenes through sequential organocatalyzed Povarov reaction and oxidative aromatization. Nat Commun 2023; 14:3380. [PMID: 37291164 DOI: 10.1038/s41467-023-39134-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 05/31/2023] [Indexed: 06/10/2023] Open
Abstract
Heterohelicenes are of increasing importance in the fields of materials science, molecular recognition, and asymmetric catalysis. However, enantioselective construction of these molecules, especially by organocatalytic methods, is challenging, and few methods are available. In this study, we synthesize enantioenriched 1-(3-indol)-quino[n]helicenes through chiral phosphoric acid-catalyzed Povarov reaction followed by oxidative aromatization. The method has a broad substrate scope and offers rapid access to an array of chiral quinohelicenes with enantioselectivities up to 99%. Additionally, the photochemical and electrochemical properties of selected quinohelicenes are explored.
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Affiliation(s)
- Chengwen Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Ying-Bo Shao
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xi Gao
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zhiyuan Ren
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Chenhao Guo
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Meng Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China.
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6
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Lin D, Jiang S, Zhang A, Wu T, Qian Y, Shao Q. Structural derivatization strategies of natural phenols by semi-synthesis and total-synthesis. NATURAL PRODUCTS AND BIOPROSPECTING 2022; 12:8. [PMID: 35254538 PMCID: PMC8901917 DOI: 10.1007/s13659-022-00331-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/15/2022] [Indexed: 05/08/2023]
Abstract
Structural derivatization of natural products has been a continuing and irreplaceable source of novel drug leads. Natural phenols are a broad category of natural products with wide pharmacological activity and have offered plenty of clinical drugs. However, the structural complexity and wide variety of natural phenols leads to the difficulty of structural derivatization. Skeleton analysis indicated most types of natural phenols can be structured by the combination and extension of three common fragments containing phenol, phenylpropanoid and benzoyl. Based on these fragments, the derivatization strategies of natural phenols were unified and comprehensively analyzed in this review. In addition to classical methods, advanced strategies with high selectivity, efficiency and practicality were emphasized. Total synthesis strategies of typical fragments such as stilbenes, chalcones and flavonoids were also covered and analyzed as the supplementary for supporting the diversity-oriented derivatization of natural phenols.
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Affiliation(s)
- Ding Lin
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China.
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China.
| | - Senze Jiang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Ailian Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Tong Wu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Yongchang Qian
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Qingsong Shao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China.
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China.
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7
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Novel 1,3,5-Triazinyl Aminobenzenesulfonamides Incorporating Aminoalcohol, Aminochalcone and Aminostilbene Structural Motifs as Potent Anti-VRE Agents, and Carbonic Anhydrases I, II, VII, IX, and XII Inhibitors. Int J Mol Sci 2021; 23:ijms23010231. [PMID: 35008657 PMCID: PMC8745223 DOI: 10.3390/ijms23010231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/17/2021] [Accepted: 12/24/2021] [Indexed: 12/29/2022] Open
Abstract
A series of 1,3,5-triazinyl aminobenzenesulfonamides substituted by aminoalcohol, aminostilbene, and aminochalcone structural motifs was synthesized as potential human carbonic anhydrase (hCA) inhibitors. The compounds were evaluated on their inhibition of tumor-associated hCA IX and hCA XII, hCA VII isoenzyme present in the brain, and physiologically important hCA I and hCA II. While the test compounds had only a negligible effect on physiologically important isoenzymes, many of the studied compounds significantly affected the hCA IX isoenzyme. Several compounds showed activity against hCA XII; (E)-4-{2-[(4-[(2,3-dihydroxypropyl)amino]-6-[(4-styrylphenyl)amino]-1,3,5-triazin-2-yl)amino]ethyl}benzenesulfonamide (31) and (E)-4-{2-[(4-[(4-hydroxyphenyl)amino]-6-[(4-styrylphenyl)amino]-1,3,5-triazin-2-yl)amino]ethyl}benzenesulfonamide (32) were the most effective inhibitors with KIs = 4.4 and 5.9 nM, respectively. In addition, the compounds were tested against vancomycin-resistant Enterococcus faecalis (VRE) isolates. (E)-4-[2-({4-[(4-cinnamoylphenyl)amino]-6-[(4-hydroxyphenyl)amino]-1,3,5-triazin-2-yl}amino)ethyl]benzenesulfonamide (21) (MIC = 26.33 µM) and derivative 32 (MIC range 13.80-55.20 µM) demonstrated the highest activity against all tested strains. The most active compounds were evaluated for their cytotoxicity against the Human Colorectal Tumor Cell Line (HCT116 p53 +/+). Only 4,4'-[(6-chloro-1,3,5-triazin-2,4-diyl)bis(iminomethylene)]dibenzenesulfonamide (7) and compound 32 demonstrated an IC50 of ca. 6.5 μM; otherwise, the other selected derivatives did not show toxicity at concentrations up to 50 µM. The molecular modeling and docking of active compounds into various hCA isoenzymes, including bacterial carbonic anhydrase, specifically α-CA present in VRE, was performed to try to outline a possible mechanism of selective anti-VRE activity.
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8
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Takeda M, Nagao K, Ohmiya H. Transition‐Metal‐Free Cross‐Coupling by Using Tertiary Benzylic Organoboronates. Angew Chem Int Ed Engl 2020; 59:22460-22464. [DOI: 10.1002/anie.202010251] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Mitsutaka Takeda
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Kazunori Nagao
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- JST PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
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9
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Takeda M, Nagao K, Ohmiya H. Transition‐Metal‐Free Cross‐Coupling by Using Tertiary Benzylic Organoboronates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010251] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mitsutaka Takeda
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Kazunori Nagao
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- JST PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
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10
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Wang X, Li C, Wang X, Wang Q, Dong XQ, Duan A, Zhao W. Metal-Free Etherification of Aryl Methyl Ether Derivatives by C–OMe Bond Cleavage. Org Lett 2018; 20:4267-4272. [DOI: 10.1021/acs.orglett.8b01696] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xueqiang Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Chenchen Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Xia Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Qingli Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Xiu-Qin Dong
- Key Laboratory of Biomedical Polymers, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Abing Duan
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Wanxiang Zhao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
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11
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Paudyal MP, Adebesin AM, Burt SR, Ess DH, Ma Z, Kürti L, Falck JR. Dirhodium-catalyzed C-H arene amination using hydroxylamines. Science 2016; 353:1144-7. [PMID: 27609890 PMCID: PMC5040325 DOI: 10.1126/science.aaf8713] [Citation(s) in RCA: 200] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 08/18/2016] [Indexed: 01/01/2023]
Abstract
Primary and N-alkyl arylamine motifs are key functional groups in pharmaceuticals, agrochemicals, and functional materials, as well as in bioactive natural products. However, there is a dearth of generally applicable methods for the direct replacement of aryl hydrogens with NH2/NH(alkyl) moieties. Here, we present a mild dirhodium-catalyzed C-H amination for conversion of structurally diverse monocyclic and fused aromatics to the corresponding primary and N-alkyl arylamines using NH2/NH(alkyl)-O-(sulfonyl)hydroxylamines as aminating agents; the relatively weak RSO2O-N bond functions as an internal oxidant. The methodology is operationally simple, scalable, and fast at or below ambient temperature, furnishing arylamines in moderate-to-good yields and with good regioselectivity. It can be readily extended to the synthesis of fused N-heterocycles.
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Affiliation(s)
- Mahesh P Paudyal
- Division of Chemistry, Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Adeniyi Michael Adebesin
- Division of Chemistry, Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Scott R Burt
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA
| | - Daniel H Ess
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA
| | - Zhiwei Ma
- Department of Chemistry, Rice University, BioScience Research Collaborative, Houston, TX 77005, USA
| | - László Kürti
- Department of Chemistry, Rice University, BioScience Research Collaborative, Houston, TX 77005, USA
| | - John R Falck
- Division of Chemistry, Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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12
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Guo Y, Li J, Zhao F, Lan G, Li L, Liu Y, Si Y, Jiang Y, Yang B, Yang R. Palladium-modified functionalized cyclodextrin as an efficient and recyclable catalyst for reduction of nitroarenes. RSC Adv 2016. [DOI: 10.1039/c5ra23271f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
A kind of palladium-modified functionalized cyclodextrin catalytic system was synthesized and characterized. It showed high activity in the reduction of nitroarenes with the absence of sodium borohydride in water at room temperature.
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Affiliation(s)
- Yafei Guo
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
- Faculty of Life Science and Technology
| | - Jiuling Li
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Fen Zhao
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Guineng Lan
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Liang Li
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Yuqi Liu
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Yunsen Si
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Yubo Jiang
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Bo Yang
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Rui Yang
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| |
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Tuteja J, Nishimura S, Ebitani K. Base-free chemoselective transfer hydrogenation of nitroarenes to anilines with formic acid as hydrogen source by a reusable heterogeneous Pd/ZrP catalyst. RSC Adv 2014. [DOI: 10.1039/c4ra06174h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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