1
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Li B, Shen N, Wang K, Fan X, Zhang X. Rh(III)‐catalyzed Reaction of 2‐Aryl‐3‐acyl‐1H‐indoles with a‐Diazo Carbonyl Compounds: Synthesis of 5‐Carbonyl Substituted Benzo[a]carbazoles via [5 + 1] Annulation. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bin Li
- Henan Normal University School of Environment jianshe road 46# 453007 Xinxiang CHINA
| | - Nana Shen
- Henan Normal University school of chemistry and chemical engineering CHINA
| | - Kelin Wang
- Henan Normal University school of chemistry and chemical engineering CHINA
| | - Xuesen Fan
- Henan Normal University school of chemistry and chemical engineering CHINA
| | - Xinying Zhang
- Henan Normal University school of chemistry and chemical engineering CHINA
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2
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Moghaddam FM, Jarahiyan A, Pourjavadi A. A Regioselective Approach to Synthesize Indolyl Diketone Derivatives via Magnetic Polymeric Copper-Catalyst. Catal Letters 2021. [DOI: 10.1007/s10562-021-03697-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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3
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Zhang A, Meng T, Wang W, Liu X, Zhu Y, Liu L. Palladium‐catalyzed cyclization reaction of N‐(2‐Haloaryl)alkynylimines: Synthesis of 3‐acylindoles using water as the sole solvent and oxygen source. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- An‐An Zhang
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
| | - Tuanjie Meng
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
| | - Wenli Wang
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
| | - Xueli Liu
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
| | - Yupei Zhu
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
| | - Lantao Liu
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
- College of ChemistryZhengzhou University Zhengzhou 450001 P. R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of ChemistryPeking University Beijing 100871 P. R. China
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4
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Velnati S, Massarotti A, Antona A, Talmon M, Fresu LG, Galetto AS, Capello D, Bertoni A, Mercalli V, Graziani A, Tron GC, Baldanzi G. Structure activity relationship studies on Amb639752: toward the identification of a common pharmacophoric structure for DGKα inhibitors. J Enzyme Inhib Med Chem 2020; 35:96-108. [PMID: 31690133 PMCID: PMC6844378 DOI: 10.1080/14756366.2019.1684911] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A series of analogues of Amb639752, a novel diacylglycerol kinase (DGK) inhibitor recently discovered by us via virtual screening, have been tested. The compounds were evaluated as DGK inhibitors on α, θ, and ζ isoforms, and as antagonists on serotonin receptors. From these assays emerged two novel compounds, namely 11 and 20, which with an IC50 respectively of 1.6 and 1.8 µM are the most potent inhibitors of DGKα discovered to date. Both compounds demonstrated the ability to restore apoptosis in a cellular model of X-linked lymphoproliferative disease as well as the capacity to reduce the migration of cancer cells, suggesting their potential utility in preventing metastasis. Finally, relying on experimental biological data, molecular modelling studies allow us to set a three-point pharmacophore model for DGK inhibitors.
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Affiliation(s)
- Suresh Velnati
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy.,Institute for Research and Cure of Autoimmune Diseases, CAAD, University of Piemonte Orientale, Novara, Italy
| | - Alberto Massarotti
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Novara, Italy
| | - Annamaria Antona
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Maria Talmon
- Department of Health Sciences, School of Medicine, University of Piemonte Orientale, Novara, Italy
| | - Luigia Grazia Fresu
- Department of Health Sciences, School of Medicine, University of Piemonte Orientale, Novara, Italy
| | - Alessandra Silvia Galetto
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy.,Palliative Care Division, A.S.L., Vercelli, Italy
| | - Daniela Capello
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Alessandra Bertoni
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Valentina Mercalli
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Novara, Italy
| | - Andrea Graziani
- Università Vita-Salute San Raffaele, Milan, Italy.,Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Turin, Italy
| | - Gian Cesare Tron
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Novara, Italy
| | - Gianluca Baldanzi
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy.,Institute for Research and Cure of Autoimmune Diseases, CAAD, University of Piemonte Orientale, Novara, Italy
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5
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Ajarul S, Kayet A, Pati TK, Maiti DK. A competitive and highly selective 7-, 6- and 5-annulation with 1,3-migration through C-H and N-H - alkyne coupling. Chem Commun (Camb) 2020; 56:474-477. [PMID: 31829322 DOI: 10.1039/c9cc07360d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrated a highly competitive and selective C-C and N-C cross-coupled 7-, 6- and 5-annulation utilizing 2-ethynylanilides to afford functionalized 1H-benzo[b]azepin-2(5H)-ones, 2-quinolinones, and 3-acylindoles in high yield. ZnCl2 was found to be the smart catalyst for 7- and 5-annulation with 1,3-migration through C-H and N-H functionalization, respectively, whereas molecular iodine performed the C-H functionalized 6-annulation with a nonconventional 1,3 H-shift. The mechanism was investigated by intermediate trapping, control, and labeling experiments.
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Affiliation(s)
- Sk Ajarul
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India.
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6
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Tan A, Babak MV, Venkatesan G, Lim C, Klotz KN, Herr DR, Cheong SL, Federico S, Spalluto G, Ong WY, Chen YZ, Loo JSE, Pastorin G. Design, Synthesis and Evaluation of New Indolylpyrimidylpiperazines for Gastrointestinal Cancer Therapy. Molecules 2019; 24:E3661. [PMID: 31614517 PMCID: PMC6832257 DOI: 10.3390/molecules24203661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/04/2019] [Accepted: 10/08/2019] [Indexed: 11/29/2022] Open
Abstract
Human A3 adenosine receptor hA3AR has been implicated in gastrointestinal cancer, where its cellular expression has been found increased, thus suggesting its potential as a molecular target for novel anticancer compounds. Observation made in our previous work indicated the importance of the carbonyl group of amide in the indolylpyrimidylpiperazine (IPP) for its human A2A adenosine receptor (hA2AAR) subtype binding selectivity over the other AR subtypes. Taking this observation into account, we structurally modified an indolylpyrimidylpiperazine (IPP) scaffold, 1 (a non-selective adenosine receptors' ligand) into a modified IPP (mIPP) scaffold by switching the position of the carbonyl group, resulting in the formation of both ketone and tertiary amine groups in the new scaffold. Results showed that such modification diminished the A2A activity and instead conferred hA3AR agonistic activity. Among the new mIPP derivatives (3-6), compound 4 showed potential as a hA3AR partial agonist, with an Emax of 30% and EC50 of 2.89 ± 0.55 μM. In the cytotoxicity assays, compound 4 also exhibited higher cytotoxicity against both colorectal and liver cancer cells as compared to normal cells. Overall, this new series of compounds provide a promising starting point for further development of potent and selective hA3AR partial agonists for the treatment of gastrointestinal cancers.
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Affiliation(s)
- Aaron Tan
- NUS Graduate School of Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore 117456, Singapore.
| | - Maria V Babak
- Department of Pharmacy, National University of Singapore, Singapore 119260, Singapore.
| | | | - Clarissa Lim
- Department of Pharmacy, National University of Singapore, Singapore 119260, Singapore.
| | - Karl-Norbert Klotz
- Institut für Pharmakologie und Toxikologie, Universität Würzburg, 97078 Würzburg, Germany.
| | - Deron Raymond Herr
- Department of Pharmacology, National University of Singapore, Singapore 117600, Singapore.
| | - Siew Lee Cheong
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, 126 Jalan Jalil Perkasa 19, Bukit Jalil, Kuala Lumpur 57000, Malaysia.
| | - Stephanie Federico
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, 34127 Trieste, Italy.
| | - Giampiero Spalluto
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, 34127 Trieste, Italy.
| | - Wei-Yi Ong
- Department of Anatomy, National University of Singapore, Singapore 119260, Singapore.
| | - Yu Zong Chen
- Department of Pharmacy, National University of Singapore, Singapore 119260, Singapore.
| | - Jason Siau Ee Loo
- School of Pharmacy, Faculty of Health and Medical Sciences, Taylor's University, 1, Jalan Taylors, Subang Jaya, Selangor 47500, Malaysia.
| | - Giorgia Pastorin
- NUS Graduate School of Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore 117456, Singapore.
- Department of Pharmacy, National University of Singapore, Singapore 119260, Singapore.
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7
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Zhang J, Wu M, Fan J, Xu Q, Xie M. Selective C–H acylation of indoles with α-oxocarboxylic acids at the C4 position by palladium catalysis. Chem Commun (Camb) 2019; 55:8102-8105. [DOI: 10.1039/c9cc03893k] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The first catalytic C–H acylation of indoles at the C4 position with α-oxocarboxylic acids by palladium catalysis is described.
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Affiliation(s)
- Jitan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Manyi Wu
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Jian Fan
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Qiaoqiao Xu
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Meihua Xie
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
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8
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Hu X, Chen F, Deng Y, Jiang H, Zeng W. Zn(OAc)2-Catalyzed C3-Carbonylacetylation of Indoles with α-Diazoketones Involving Wolff Rearrangement. Org Lett 2018; 20:6140-6143. [PMID: 30232891 DOI: 10.1021/acs.orglett.8b02613] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xinwei Hu
- China Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Fengjuan Chen
- China Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Yuanfu Deng
- China Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huanfeng Jiang
- China Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wei Zeng
- China Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
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9
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Li LH, Niu ZJ, Liang YM. New Friedel–Crafts strategy for preparing 3-acylindoles. Org Biomol Chem 2018; 16:7792-7796. [PMID: 30325392 DOI: 10.1039/c8ob02094a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Friedel–Crafts acylation generates diverse high-biological value 3-acylindoles, and forms a new C–C bond under transition-metal-free conditions.
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Affiliation(s)
- Lian-Hua Li
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Zhi-Jie Niu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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10
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Jana S, Verma A, Kadu R, Kumar S. Visible-light-induced oxidant and metal-free dehydrogenative cascade trifluoromethylation and oxidation of 1,6-enynes with water. Chem Sci 2017; 8:6633-6644. [PMID: 28989690 PMCID: PMC5625288 DOI: 10.1039/c7sc02556d] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/08/2017] [Indexed: 12/30/2022] Open
Abstract
Unprecedented light-induced oxidant and metal-free tandem radical cyclization–trifluoromethylation and dehydrogenative oxygenation of 1,6-enynes have been achieved using a photoredox catalyst, CF3SO2Na, and water as the oxygen source.
Generally, oxy-trifluoromethylation in olefins is achieved using oxidants and transition metal catalysts. However, labile olefins remain unexplored due to their incompatibility with harsh reaction conditions. Here, unprecedented light-induced oxidant and metal-free tandem radical cyclization–trifluoromethylation and dehydrogenative oxygenation of 1,6-enynes have been achieved using a photoredox catalyst, CF3SO2Na, and phenanthrene-9,10-dione (PQ), Langlois’ reagent (CF3SO2Na) and water as the oxygen source. This benign protocol allows for access to various CF3-containing C3-aryloyl/acylated benzofurans, benzothiophenes, and indoles. Moreover, the oxidized undesired products, which are inherently formed by the cleavage of the vinylic carbon and heteroatom bond, have been circumvented under oxidant free conditions. The mechanistic investigations by UV-visible and ESR spectroscopy, electrochemical studies, isotope labelling and density functional theory (DFT) suggest that light induced PQ produced a CF3 radical from CF3SO2Na. The generated CF3 radical adds to the alkene, followed by cyclization, to provide a vinylic radical that transfers an electron to PQ and generates a vinylic cation. Alternatively, electron transfer may occur from the CF3-added alkene moiety, forming a carbocation, which would undergo cationic cyclization to generate a vinylic carbocation. The subsequent addition of water to the vinylic cation, followed by the elimination of hydrogen gas, led to the formation of trifluoromethylated C3-aryloyl/acylated heterocycles.
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Affiliation(s)
- Sadhan Jana
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Ajay Verma
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Rahul Kadu
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Sangit Kumar
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
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11
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Tran PH, Duy Nguyen AT, Nguyen HT, Le TN. Brønsted acidic ionic liquid-promoted direct C3-acylation of N-unsubstituted indoles with acid anhydrides under microwave irradiation. RSC Adv 2017. [DOI: 10.1039/c7ra11362e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A green and efficient method for the synthesis of 3-acylindoles using a Brønsted acidic ionic liquid under microwave irradiation has been developed.
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Affiliation(s)
- Phuong Hoang Tran
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Science
- Vietnam National University
- Ho Chi Minh City 70000
| | - Anh-Thanh Duy Nguyen
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Science
- Vietnam National University
- Ho Chi Minh City 70000
| | - Hai Truong Nguyen
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Science
- Vietnam National University
- Ho Chi Minh City 70000
| | - Thach Ngoc Le
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Science
- Vietnam National University
- Ho Chi Minh City 70000
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12
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Nakamura A, Tanaka S, Imamiya A, Takane R, Ohta C, Fujimura K, Maegawa T, Miki Y. Synthesis of 3-acylindoles by oxidative rearrangement of 2-aminochalcones using a hypervalent iodine reagent and cyclization sequence. Org Biomol Chem 2017; 15:6702-6705. [PMID: 28749517 DOI: 10.1039/c7ob01536d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An efficient one-pot 3-acylindole synthesis by oxidative rearrangement of 2-aminochalcones and sequential cyclization has been developed.
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Affiliation(s)
- Akira Nakamura
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Satoshi Tanaka
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Akira Imamiya
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Reo Takane
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Chiaki Ohta
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Kazuma Fujimura
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Tomohiro Maegawa
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Yasuyoshi Miki
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
- Research Organization of Science and Technology
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13
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14
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Wu YD, Ma JR, Shu WM, Zheng KL, Wu AX. Base-promoted domino reaction for the synthesis of 2,3-disubstituted indoles from 2-aminobenzaldehyde/2-amino aryl ketones, tosylhydrazine, and aromatic aldehydes. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Gu LJ, Wang YS, Zhang HT, Tang HJ, Li GP, Yuan ML. Palladium-Catalyzed Carbonylation of Indoles using Aryl Formates as Bifunctional Reagents: A Route to Indol-3-yl Aryl Ketones. ChemCatChem 2016. [DOI: 10.1002/cctc.201600433] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Li-Jun Gu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; State Ethnic Affairs Commission & Ministry of Education; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
- Engineering Research Center of Biopolymer Functional Materials of Yunnan; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
| | - Yu-Shen Wang
- Shandong Changyi Company Limited; Changyi Shandong 261300 P.R. China
| | - Hong-Tao Zhang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; State Ethnic Affairs Commission & Ministry of Education; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
| | - Huai-Jun Tang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; State Ethnic Affairs Commission & Ministry of Education; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
| | - Gan-Peng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; State Ethnic Affairs Commission & Ministry of Education; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
| | - Ming-Long Yuan
- Engineering Research Center of Biopolymer Functional Materials of Yunnan; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
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16
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Svogie AL, Isaacs M, Hoppe HC, Khanye SD, Veale CGL. Indolyl-3-ethanone-α-thioethers: A promising new class of non-toxic antimalarial agents. Eur J Med Chem 2016; 114:79-88. [PMID: 26974377 DOI: 10.1016/j.ejmech.2016.02.056] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 02/15/2016] [Accepted: 02/24/2016] [Indexed: 11/28/2022]
Abstract
The success of chemotherapeutics in easing the burden of malaria is under continuous threat from ever-evolving parasite resistance, including resistance to artemisinin combination therapies. Therefore, the discovery of new classes of antimalarials which inhibit new biological targets is imperative to controlling malaria. Accordingly, we report here the discovery of indolyl-3-ethanone-α-thioethers, a new class of antimalarial compounds with encouraging activity. Synthesis of a focused library of compounds revealed important insight into the SAR of this class of compounds, including critical information regarding the position and chemical nature of substituents on both the thiophenol and indole rings. This investigation ultimately led to the discovery of two hit compounds (16 and 27) which exhibited nano molar in vitro antimalarial activity coupled to no observable toxicity against a HeLa cell line.
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Affiliation(s)
| | - Michelle Isaacs
- Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa
| | - Heinrich C Hoppe
- Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa
| | - Setshaba D Khanye
- Department of Chemistry, Centre for Chemico and Biomedical Research, Rhodes University, Grahamstown, 6140, South Africa
| | - Clinton G L Veale
- Faculty of Pharmacy, Rhodes University, Grahamstown, 6140, South Africa.
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17
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Zhang HT, Gu LJ, Huang XZ, Wang R, Jin C, Li GP. Synthesis of indol-3-yl aryl ketones through visible-light-mediated carbonylation. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.10.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Johansson H, Boesgaard MW, Nørskov-Lauritsen L, Larsen I, Kuhne S, Gloriam DE, Bräuner-Osborne H, Sejer Pedersen D. Selective Allosteric Antagonists for the G Protein-Coupled Receptor GPRC6A Based on the 2-Phenylindole Privileged Structure Scaffold. J Med Chem 2015; 58:8938-51. [PMID: 26516782 DOI: 10.1021/acs.jmedchem.5b01254] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
G protein-coupled receptors (GPCRs) represent a biological target class of fundamental importance in drug therapy. The GPRC6A receptor is a newly deorphanized class C GPCR that we recently reported for the first allosteric antagonists based on the 2-arylindole privileged structure scaffold (e.g., 1-3). Herein, we present the first structure-activity relationship study for the 2-arylindole antagonist 3, comprising the design, synthesis, and pharmacological evaluation of a focused library of 3-substituted 2-arylindoles. In a FRET-based inositol monophosphate (IP1) assay we identified compounds 7, 13e, and 34b as antagonists at the GPRC6A receptor in the low micromolar range and show that 7 and 34b display >9-fold selectivity for the GPRC6A receptor over related GPCRs, making 7 and 34b the most potent and selective antagonists for the GPRC6A receptor reported to date.
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Affiliation(s)
- Henrik Johansson
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Jagtvej 162, 2100 Copenhagen, Denmark
| | - Michael Worch Boesgaard
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Jagtvej 162, 2100 Copenhagen, Denmark
| | - Lenea Nørskov-Lauritsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Jagtvej 162, 2100 Copenhagen, Denmark
| | - Inna Larsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Jagtvej 162, 2100 Copenhagen, Denmark
| | - Sebastiaan Kuhne
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Jagtvej 162, 2100 Copenhagen, Denmark
| | - David E Gloriam
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Jagtvej 162, 2100 Copenhagen, Denmark
| | - Hans Bräuner-Osborne
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Jagtvej 162, 2100 Copenhagen, Denmark
| | - Daniel Sejer Pedersen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Jagtvej 162, 2100 Copenhagen, Denmark
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