1
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Zhou Y, Wang Y, Xu P, Han W, Xiong HY, Zhang G. Synthesis of Indolyl Phenyl Diketones through Visible-Light-Promoted Ni-Catalyzed Intramolecular Cyclization/Oxidation Sequence of Ynones. ACS ORGANIC & INORGANIC AU 2024; 4:241-247. [PMID: 38585509 PMCID: PMC10995934 DOI: 10.1021/acsorginorgau.3c00060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 04/09/2024]
Abstract
The combination of visible light catalysis and Ni catalysis has enabled the synthesis of indolyl phenyl diketones through the cyclization/oxidation process of ynones. This reaction proceeded under mild and base-free conditions and showed a broad scope and feasibility for gram-scale synthesis. Several natural products and biologically interesting molecules could be readily postfunctionalized by this method.
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Affiliation(s)
- Yufeng Zhou
- College
of Chemistry and Chemical Engineering, Henan
University, Kaifeng, 475004, P. R.
China
| | - Yaping Wang
- College
of Chemistry and Chemical Engineering, Henan
University, Kaifeng, 475004, P. R.
China
| | - Peidong Xu
- College
of Chemistry and Chemical Engineering, Henan
University, Kaifeng, 475004, P. R.
China
| | - Weiwei Han
- College
of Chemistry and Chemical Engineering, Henan
University, Kaifeng, 475004, P. R.
China
| | - Heng-Ying Xiong
- College
of Chemistry and Chemical Engineering, Henan
University, Kaifeng, 475004, P. R.
China
| | - Guangwu Zhang
- College
of Chemistry and Chemical Engineering, Henan
University, Kaifeng, 475004, P. R.
China
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2
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Sifaoui I, Rodríguez-Expósito RL, Reyes-Batlle M, Dumpiérrez Ramos A, Diana-Rivero R, García-Tellado F, Tejedor D, Piñero JE, Lorenzo-Morales J. Amoebicidal effect of synthetic indoles against Acanthamoeba spp.: a study of cell death. Antimicrob Agents Chemother 2024; 68:e0165123. [PMID: 38412000 PMCID: PMC10989003 DOI: 10.1128/aac.01651-23] [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: 12/16/2023] [Accepted: 01/31/2024] [Indexed: 02/28/2024] Open
Abstract
Organic and synthetic chemistry plays a crucial role in drug discovery fields. Moreover, chemical modifications of available molecules to enhance their efficacy, selectivity and safety have been considered as an attractive approach for the development of new bioactive agents. Indoles, a versatile group of natural heterocyclic compounds, have been widely used in pharmaceutical industry due to their broad spectrum of activities including antimicrobial, antitumoral and anti-inflammatory among others. Herein, we report the amoebicidal activity of different indole analogs on Acanthamoeba castellanii Neff. Among the 40 tested derivatives, eight molecules were able to inhibit this protistan parasite. The structure-activity relationship (SAR) analysis of their anti-Acanthamoeba activity would suggest that a carboxylation of C-3 position and the incorporation of halogen as chlorine/fluorine would enhance their biological profile, presumably by increasing their lipophilicity and therefore their ability to cross the cell membrane. Fluorescence image base system was used to investigate the effect of indole 6o c-6 on the cytoskeleton network and various programmed cell death features. We were able to highlight that the methyl 6-chloro-1H-indole-3-carboxylate could induce program cell death by the mitochondrial dysfunction.
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Affiliation(s)
- Ines Sifaoui
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), La Laguna, Tenerife, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, Tenerife, Spain
- Consorcio Centro de Investigación Biomédica En Red (CIBER), área de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Rubén L. Rodríguez-Expósito
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), La Laguna, Tenerife, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, Tenerife, Spain
- Consorcio Centro de Investigación Biomédica En Red (CIBER), área de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - María Reyes-Batlle
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), La Laguna, Tenerife, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, Tenerife, Spain
- Consorcio Centro de Investigación Biomédica En Red (CIBER), área de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Alejandra Dumpiérrez Ramos
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), La Laguna, Tenerife, Spain
| | - Raquel Diana-Rivero
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, La Laguna, Tenerife, Spain
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, La Laguna, Tenerife, Spain
| | - David Tejedor
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, La Laguna, Tenerife, Spain
| | - José E. Piñero
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), La Laguna, Tenerife, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, Tenerife, Spain
- Consorcio Centro de Investigación Biomédica En Red (CIBER), área de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Jacob Lorenzo-Morales
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), La Laguna, Tenerife, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, Tenerife, Spain
- Consorcio Centro de Investigación Biomédica En Red (CIBER), área de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
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3
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Chhatrapati Bisen A, Nashik Sanap S, Agrawal S, Biswas A, Sankar Bhatta R. Chemical metabolite synthesis and profiling: Mimicking in vivo biotransformation reactions. Bioorg Chem 2023; 139:106722. [PMID: 37453238 DOI: 10.1016/j.bioorg.2023.106722] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/13/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
Biotransformation was previously viewed as merely the structural characterization of drug metabolites, and it was performed only when drug candidates entered clinical development. The synthesis of drug metabolites is crucial to the drug development process because it generates either pharmacologically active, inactive, or reactive molecules and hence their characterization and comprehensive pharmacological evaluation is necessary. The chemical metabolite synthesis is very challenging due to the complex structures of many drug molecules, presence of multiple stereocenters, poor reaction yields, and the formation of unwanted by-products. Drug metabolites and their chemical synthesis have immense significance in the drug discovery process. The chemical synthesis of metabolites facilitates on- or off-target pharmacological and toxicological evaluations at the easiest. In a broader view metabolite could be a target lead molecule for drug design, toxic reactive metabolites, pharmaceutical standards for bioanalytical methods, etc. Collectively these metabolite information dossiers will aid regulatory agencies such as the EMA and FDA in maintaining strict vigilance over drug manufacturers with regard to the safety of NCE's and their hidden metabolites. Herein, we are presenting a systematic compilation of chemical and biocatalytic strategies reported to date for pharmaceutical drug metabolite synthesis. This review report is very useful for the laboratory synthesis of new drug metabolites, and their preclinical biological evaluation could aid in the detection of early threats (alerts) in drug discovery, eliminate the toxicity profile, explore newer pharmacology, and delivering a promising and safe drug candidate to humankind.
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Affiliation(s)
- Amol Chhatrapati Bisen
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Sachin Nashik Sanap
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Sristi Agrawal
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Arpon Biswas
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Rabi Sankar Bhatta
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.
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4
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The Molecular Diversity of 1H-Indole-3-Carbaldehyde Derivatives and Their Role in Multicomponent Reactions. Top Curr Chem (Cham) 2022; 380:24. [PMID: 35467226 DOI: 10.1007/s41061-022-00379-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 04/01/2022] [Indexed: 10/18/2022]
Abstract
1H-Indole-3-carbaldehyde and related members of the indole family are ideal precursors for the synthesis of active molecules. 1H-Indole-3-carbaldehyde and its derivatives are essential and efficient chemical precursors for generating biologically active structures. Multicomponent reactions (MCRs) offer access to complex molecules. This review highlights the recent applications of 1H-indole-3-carbaldehyde in such inherently sustainable multicomponent reactions from the period, 2014 to 2021 and provides an overview of the field that awaits further exploitation in the assembly of pharmaceutically interesting scaffolds.
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5
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Wang Q, Wang X, Yu M, Song H, Liu YX. Palladium Metallaphotoredox-Catalyzed 3-Acylation of Indole Derivatives. Chem Commun (Camb) 2022; 58:9492-9495. [DOI: 10.1039/d2cc03658d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aldehydes and indoles generally undergo nucleophilic addition reactions to generate alcohols rather than ketones. Here, we report a method for synthesis of 3-acyl indoles from aldehydes by a combination of...
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6
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Li C, Qi ZC, Li JY, Yang SD. Heck Reaction Boosted Heterocycle Ring-Closing and Ring-Opening Rearrangement: A Strategy for the Synthesis of Indolyl-Type Ligands. J Org Chem 2021; 86:16977-16991. [PMID: 34792365 DOI: 10.1021/acs.joc.1c02117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A novel method for P-involved heterocycle ring-closing-ring-opening rearrangement (HRR) via the Heck reaction is disclosed. The approach enables direct installation of a phosphorus-containing aryl group onto the C2 position of indole. This new rearrangement directly transforms easily prepared indole derivatives into indolyl-derived phosphonates and phosphinic acids with high yields, and many of the products are difficult to obtain by using established methods. This new HRR reaction provides an extremely simple and step-economic method to induce C-C bond formation and P-N bond cleavage for the synthesis of a variety of indolyl-type ligands.
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Affiliation(s)
- Chong Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Zhi-Chao Qi
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Jing-Yu Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
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7
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Chen S, Oliva M, Van Meervelt L, Van der Eycken EV, Sharma UK. Palladium‐Catalyzed Domino Synthesis of 2,3‐Difunctionalized Indoles
via
Migratory Insertion of Isocyanides in Batch and Continuous Flow. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100339] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Su Chen
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Monica Oliva
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Luc Van Meervelt
- Biomolecular Architecture Department of Chemistry KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
- Peoples' Friendship University of Russia (RUDN University) Miklukho-Maklaya street 6 RU-117198 Moscow Russia
| | - Upendra K. Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
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8
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BF 3-OEt 2 Catalyzed C3-Alkylation of Indole: Synthesis of Indolylsuccinimidesand Their Cytotoxicity Studies. Molecules 2021; 26:molecules26082202. [PMID: 33920456 PMCID: PMC8069703 DOI: 10.3390/molecules26082202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/27/2021] [Accepted: 04/02/2021] [Indexed: 11/17/2022] Open
Abstract
A simple and efficient BF3-OEt2 promoted C3-alkylation of indole has been developed to obtain3-indolylsuccinimidesfrom commercially available indoles and maleimides, with excellent yields under mild reaction conditions. Furthermore, anti-proliferative activity of these conjugates was evaluated against HT-29 (Colorectal), Hepg2 (Liver) and A549 (Lung) human cancer cell lines. One of the compounds, 3w, having N,N-Dimethylatedindolylsuccinimide is a potent congener amongst the series with IC50 value 0.02 µM and 0.8 µM against HT-29 and Hepg2 cell lines, respectively, and compound 3i was most active amongst the series with IC50 value 1.5 µM against A549 cells. Molecular docking study and mechanism of reaction have briefly beendiscussed. This method is better than previous reports in view of yield and substrate scope including electron deficient indoles.
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9
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Tejedor D, Diana-Rivero R, García-Tellado F. A General and Scalable Synthesis of Polysubstituted Indoles. Molecules 2020; 25:E5595. [PMID: 33260745 PMCID: PMC7730962 DOI: 10.3390/molecules25235595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/26/2020] [Accepted: 11/26/2020] [Indexed: 11/30/2022] Open
Abstract
A consecutive 2-step synthesis of N-unprotected polysubstituted indoles bearing an electron-withdrawing group at the C-3 position from readily available nitroarenes is reported. The protocol is based on the [3,3]-sigmatropic rearrangement of N-oxyenamines generated by the DABCO-catalyzed reaction of N-arylhydroxylamines and conjugated terminal alkynes, and delivers indoles endowed with a wide array of substitution patterns and topologies.
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Affiliation(s)
- David Tejedor
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain;
| | - Raquel Diana-Rivero
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain;
- Doctoral and Postgraduate School, Universidad de La Laguna, Apartado Postal 456, 38200 La Laguna, Spain
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain;
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10
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Shiah HS, Chiang NJ, Lin CC, Yen CJ, Tsai HJ, Wu SY, Su WC, Chang KY, Wang CC, Chang JY, Chen LT. Phase I Dose-Escalation Study of SCB01A, a Microtubule Inhibitor with Vascular Disrupting Activity, in Patients with Advanced Solid Tumors. Oncologist 2020; 26:e567-e579. [PMID: 33245172 DOI: 10.1002/onco.13612] [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: 05/30/2020] [Accepted: 11/15/2020] [Indexed: 11/10/2022] Open
Abstract
LESSONS LEARNED SCB01A is a novel microtubule inhibitor with vascular disrupting activity. This first-in-human study demonstrated SCB01A safety, pharmacokinetics, and preliminary antitumor activity. SCB01A is safe and well tolerated in patients with advanced solid malignancies with manageable neurotoxicity. BACKGROUND SCB01A, a novel microtubule inhibitor, has vascular disrupting activity. METHODS In this phase I dose-escalation and extension study, patients with advanced solid tumors were administered intravenous SCB01A infusions for 3 hours once every 21 days. Rapid titration and a 3 + 3 design escalated the dose from 2 mg/m2 to the maximum tolerated dose (MTD) based on dose-limiting toxicity (DLT). SCB01A-induced cellular neurotoxicity was evaluated in dorsal root ganglion cells. The primary endpoint was MTD. Safety, pharmacokinetics (PK), and tumor response were secondary endpoints. RESULTS Treatment-related adverse events included anemia, nausea, vomiting, fatigue, fever, and peripheral sensorimotor neuropathy. DLTs included grade 4 elevated creatine phosphokinase (CPK) in the 4 mg/m2 cohort; grade 3 gastric hemorrhage in the 6.5 mg/m2 cohort; grade 2 thromboembolic event in the 24 mg/m2 cohort; and grade 3 peripheral sensorimotor neuropathy, grade 3 elevated aspartate aminotransferase, and grade 3 hypertension in the 32 mg/m2 cohort. The MTD was 24 mg/m2 , and average half-life was ~2.5 hours. The area under the curve-dose response relationship was linear. Nineteen subjects were stable after two cycles. The longest treatment lasted 24 cycles. SCB01A-induced neurotoxicity was reversible in vitro. CONCLUSION The MTD of SCB01A was 24 mg/m2 every 21 days; it is safe and tolerable in patients with solid tumors.
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Affiliation(s)
- Her-Shyong Shiah
- Graduate Institute of Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Division of Hematology and Oncology, Department of Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan
| | - Nai-Jung Chiang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,Division of Oncology-Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chia-Chi Lin
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan.,Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chia-Jui Yen
- Division of Oncology-Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hui-Jen Tsai
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,Division of Oncology-Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shang-Yin Wu
- Division of Oncology-Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wu-Chou Su
- Division of Oncology-Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kwang-Yu Chang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,Division of Oncology-Hematology, Department of Internal Medicine, National Cheng Kung University, Tainan, Taiwan
| | | | - Jang-Yang Chang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,Division of Oncology-Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Li-Tzong Chen
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,Division of Oncology-Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Internal Medicine, Kaohisung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
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11
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Talukdar R. Rapid access to 3-acyl indoles using ethyl acetate/triflic acid couple as the acylium donor and Cu(OAc) 2 catalysed aerial oxidation of indole benzoins. Org Biomol Chem 2020; 18:8876-8880. [PMID: 33103169 DOI: 10.1039/d0ob01977a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Esters are potential acyl donors but are relatively unexplored for that purpose. A facile installation of acyl groups at the C-3 position of indoles under triflic acid catalysed conditions with easily available and cheap esters as new acylating agents is described herein. Furthermore, heterocycles like N-protected pyrrole, furan and thiophene were also suitable substrates for similar C-2 acylation. Analogous C-3 benzoylated products of indole were obtained, albeit in lower yields, by using methyl benzoate as a benzoyl donor. The benzoylated products were synthesised in much better yields via a copper(ii) catalysed aerial oxidation of indole containing benzoins.
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Affiliation(s)
- Ranadeep Talukdar
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow-226014, India.
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12
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Zhang ZB, Yang Y, Yu ZX, Xia JB. Lewis Base-Catalyzed Amino-Acylation of Arylallenes via C–N Bond Cleavage: Reaction Development and Mechanistic Studies. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01000] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zheng-Bing Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), University of Chinese Academy of Sciences, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yusheng Yang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhi-Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Ji-Bao Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), University of Chinese Academy of Sciences, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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13
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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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14
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Malebari AM, Fayne D, Nathwani SM, O'Connell F, Noorani S, Twamley B, O'Boyle NM, O'Sullivan J, Zisterer DM, Meegan MJ. β-Lactams with antiproliferative and antiapoptotic activity in breast and chemoresistant colon cancer cells. Eur J Med Chem 2020; 189:112050. [PMID: 31954879 DOI: 10.1016/j.ejmech.2020.112050] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/20/2019] [Accepted: 01/08/2020] [Indexed: 12/31/2022]
Abstract
A series of novel 1,4-diaryl-2-azetidinone analogues of combretastatin A-4 (CA-4) have been designed, synthesised and evaluated in vitro for antiproliferative activity, antiapoptotic activity and inhibition of tubulin polymerisation. Glucuronidation of CA-4 by uridine 5-diphosphoglucuronosyl transferase enzymes (UGTs) has been identified as a mechanism of resistance in cancer cells. Potential sites of ring B glucuronate conjugation are removed by replacing the B ring meta-hydroxy substituent of selected series of β-lactams with alternative substituents e.g. F, Cl, Br, I, CH3. The 3-phenyl-β-lactam 11 and 3-hydroxy-β-lactam 46 demonstrate improved activity over CA-4 in CA-4 resistant HT-29 colon cancer cells (IC50 = 9 nM and 3 nM respectively compared with IC50 = 4.16 μM for CA-4), while retaining potency in MCF-7 breast cancer cells (IC50 = 17 nM and 22 nM respectively compared with IC50 = for 4 nM for CA-4). Compound 46 binds at the colchicine site of tubulin, and strongly inhibits tubulin assembly at micromolar concentrations comparable to CA-4. In addition, compound 46 induced mitotic arrest at low concentration in both cell lines MCF-7 and HT-29 together with downregulation of expression of antiapoptotic proteins Mcl-1, Bcl-2 and survivin in MCF-7 cells. These novel antiproliferative and antiapoptotic β-lactams are potentially useful scaffolds in the development of tubulin-targeting agents for the treatment of breast cancers and chemoresistant colon cancers.
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Affiliation(s)
- Azizah M Malebari
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia; School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Dublin 2, Ireland.
| | - Darren Fayne
- School of Biochemistry and Immunology, Trinity College Dublin, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Dublin 2, Ireland
| | - Seema M Nathwani
- School of Biochemistry and Immunology, Trinity College Dublin, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Dublin 2, Ireland
| | - Fiona O'Connell
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, Dublin 2, Ireland
| | - Sara Noorani
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Dublin 2, Ireland
| | - Brendan Twamley
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Niamh M O'Boyle
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Dublin 2, Ireland
| | - Jacintha O'Sullivan
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, Dublin 2, Ireland
| | - Daniela M Zisterer
- School of Biochemistry and Immunology, Trinity College Dublin, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Dublin 2, Ireland
| | - Mary J Meegan
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Dublin 2, Ireland
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15
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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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16
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Tan XJ, Wang D, Hei XM, Yang FC, Zhu YL, Xing DX, Ma JP. Synthesis, crystal structures, antiproliferative activities and reverse docking studies of eight novel Schiff bases derived from benzil. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2020; 76:44-63. [PMID: 31919307 DOI: 10.1107/s2053229619015687] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 11/19/2019] [Indexed: 12/15/2022]
Abstract
Eight novel Schiff bases derived from benzil dihydrazone (BDH) or benzil monohydrazone (BMH) and four fused-ring carbonyl compounds (3-formylindole, FI; 3-acetylindole, AI; 3-formyl-1-methylindole, MFI; 1-formylnaphthalene, FN) were synthesized and characterized by elemental analysis, ESI-QTOF-MS, 1H and 13C NMR spectroscopy, as well as single-crystal X-ray diffraction. They are (1Z,2Z)-1,2-bis{(E)-[(1H-indol-3-yl)methylidene]hydrazinylidene}-1,2-diphenylethane (BDHFI), C32H24N6, (1Z,2Z)-1,2-bis{(E)-[1-(1H-indol-3-yl)ethylidene]hydrazinylidene}-1,2-diphenylethane (BDHAI), C34H28N6, (1Z,2Z)-1,2-bis{(E)-[(1-methyl-1H-indol-3-yl)methylidene]hydrazinylidene}-1,2-diphenylethane (BMHMFI) acetonitrile hemisolvate, C34H28N6·0.5CH3CN, (1Z,2Z)-1,2-bis{(E)-[(naphthalen-1-yl)methylidene]hydrazinylidene}-1,2-diphenylethane (BDHFN), C36H26N4, (Z)-2-{(E)-[(1H-indol-3-yl)methylidene]hydrazinylidene}-1,2-diphenylethanone (BMHFI), C23H17N3O, (Z)-2-{(E)-[1-(1H-indol-3-yl)ethylidene]hydrazinylidene}-1,2-diphenylethanone (BMHAI), C24H19N3O, (Z)-2-{(E)-[(1-methyl-1H-indol-3-yl)methylidene]hydrazinylidene}-1,2-diphenylethanone (BMHMFI), C24H19N3O, and (Z)-2-{(E)-[(naphthalen-1-yl)methylidene]hydrazinylidene}-1,2-diphenylethanone (BMHFN) C25H18N2O. Moreover, the in vitro cytotoxicity of the eight title compounds was evaluated against two tumour cell lines (A549 human lung cancer and 4T1 mouse breast cancer) and two normal cell lines (MRC-5 normal lung cells and NIH 3T3 fibroblasts) by MTT assay. The results indicate that four (BDHMFI, BDHFN, BMHMFI and BMHFN) are inactive and the other four (BDHFI, BDHAI, BMHFI and BMHAI) show severe toxicities against human A549 and mouse 4T1 cells, similar to the standard cisplatin. All the compounds exhibited weaker cytotoxicity against normal cells than cancer cells. The Swiss Target Prediction web server was applied for the prediction of protein targets. After analyzing the differences in frequency hits between these active and inactive Schiff bases, 18 probable targets were selected for reverse docking with the Surflex-dock function in SYBYL-X 2.0 software. Three target proteins, i.e. human ether-á-go-go-related (hERG) potassium channel, the inhibitor of apoptosis protein 3 and serine/threonine-protein kinase PIM1, were chosen as the targets. Finally, the ligand-based structure-activity relationships were analyzed based on the putative protein target (hERG) docking results, which will be used to design and synthesize novel hERG ion channel inhibitors.
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Affiliation(s)
- Xue Jie Tan
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, People's Republic of China
| | - Di Wang
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, People's Republic of China
| | - Xiao Ming Hei
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, People's Republic of China
| | - Feng Cun Yang
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, People's Republic of China
| | - Ya Ling Zhu
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, People's Republic of China
| | - Dian Xiang Xing
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, People's Republic of China
| | - Jian Ping Ma
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Centre of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, People's Republic of China
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17
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Benzoyl indoles with metabolic stability as reversal agents for ABCG2-mediated multidrug resistance. Eur J Med Chem 2019; 179:849-862. [PMID: 31302589 DOI: 10.1016/j.ejmech.2019.06.066] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/02/2019] [Accepted: 06/22/2019] [Indexed: 12/31/2022]
Abstract
Ko143, a potent ABCG2 inhibitor that reverses multidrug resistance in cancer, cannot be used clinically due to its unsuitable metabolic stability. We identified benzoyl indoles as reversal agents that reversed ABCG2-mediated multidrug resistance (MDR), with synthetic tractability and enhanced metabolic stability compared to Ko143. Bisbenzoyl indole 2 and monobenzoyl indole 8 significantly increased the accumulation of mitoxantrone (MX) in ABCG2-overexpressing NCI-H460/MX20 cells, and sensitized NCI-H460/MX20 cells to mitoxantrone. Mechanistic studies were conducted by [3H]-MX accumulation assay, Western blot analysis, immunofluorescence analysis and ABCG2 ATPase assay. The results revealed that the reversal efficacies of compounds 2 and 8 were not due to an alteration in the expression level or localization of ABCG2 in ABCG2-overexpressing cell lines. Instead, compounds 2 and 8 significantly stimulated the ATP hydrolysis of ABCG2 transporter, suggesting that these compounds could be competitive substrates of ABCG2 transporter. Overall, the results of our study indicated that compounds 2 and 8 significantly reversed ABCG2-mediated MDR by blocking the efflux of anticancer drugs.
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18
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Penteado F, Lopes EF, Alves D, Perin G, Jacob RG, Lenardão EJ. α-Keto Acids: Acylating Agents in Organic Synthesis. Chem Rev 2019; 119:7113-7278. [DOI: 10.1021/acs.chemrev.8b00782] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Filipe Penteado
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eric F. Lopes
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Raquel G. Jacob
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
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19
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Doan P, Musa A, Candeias NR, Emmert-Streib F, Yli-Harja O, Kandhavelu M. Alkylaminophenol Induces G1/S Phase Cell Cycle Arrest in Glioblastoma Cells Through p53 and Cyclin-Dependent Kinase Signaling Pathway. Front Pharmacol 2019; 10:330. [PMID: 31001122 PMCID: PMC6454069 DOI: 10.3389/fphar.2019.00330] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 03/19/2019] [Indexed: 12/22/2022] Open
Abstract
Glioblastoma (GBM) is the most common type of malignant brain tumor in adults. We show here that small molecule 2-[(3,4-dihydroquinolin-1(2H)-yl)(p-tolyl)methyl]phenol (THTMP), a potential anticancer agent, increases the human glioblastoma cell death. Its mechanism of action and the interaction of selective signaling pathways remain elusive. Three structurally related phenolic compounds were tested in multiple glioma cell lines in which the potential activity of the compound, THTMP, was further validated and characterized. Upon prolonged exposer to THTMP, all glioma cell lines undergo p53 and cyclin-dependent kinase mediated cell death with the IC50 concentration of 26.5 and 75.4 μM in LN229 and Snb19, respectively. We found that THTMP strongly inhibited cell growth in a dose and in time dependent manner. THTMP treatment led to G1/S cell cycle arrest and apoptosis induction of glioma cell lines. Furthermore, we identified 3,714 genes with significant changes at the transcriptional level in response to THTMP. Further, a transcriptional analysis (RNA-seq) revealed that THTMP targeted the p53 signaling pathway specific genes causing DNA damage and cell cycle arrest at G1/S phase explained by the decrease of cyclin-dependent kinase 1, cyclin A2, cyclin E1 and E2 in glioma cells. Consistently, THTMP induced the apoptosis by regulating the expression of Bcl-2 family genes and reactive oxygen species while it also changed the expression of several anti-apoptotic genes. These observations suggest that THTMP exerts proliferation activity inhibition and pro-apoptosis effects in glioma through affecting cell cycle arrest and intrinsic apoptosis signaling. Importantly, THTMP has more potential at inhibiting GBM cell proliferation compared to TMZ, the current chemotherapy treatment administered to GBM patients; thus, we propose that THTMP may be an alternative therapeutic option for glioblastoma.
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Affiliation(s)
- Phuong Doan
- Molecular Signaling Lab, Faculty of Medicine and Health Technology, Tampere University and BioMediTech, Tampere, Finland.,Institute of Biosciences and Medical Technology, Tampere, Finland
| | - Aliyu Musa
- Institute of Biosciences and Medical Technology, Tampere, Finland.,Predictive Medicine and Data Analytics Lab, Faculty of Medicine and Health Technology, Tampere University and BioMediTech, Tampere, Finland
| | - Nuno R Candeias
- Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland
| | - Frank Emmert-Streib
- Institute of Biosciences and Medical Technology, Tampere, Finland.,Predictive Medicine and Data Analytics Lab, Faculty of Medicine and Health Technology, Tampere University and BioMediTech, Tampere, Finland
| | - Olli Yli-Harja
- Institute of Biosciences and Medical Technology, Tampere, Finland.,Computaional Systems Biology Group, Faculty of Medicine and Health Technology, Tampere University and BioMediTech, Tampere, Finland.,Institute for Systems Biology, Seattle, WA, United States
| | - Meenakshisundaram Kandhavelu
- Molecular Signaling Lab, Faculty of Medicine and Health Technology, Tampere University and BioMediTech, Tampere, Finland.,Institute of Biosciences and Medical Technology, Tampere, Finland
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20
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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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21
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Rathod AS, Biradar JS. An Efficient, Eco-Friendly Synthesis of Pyran Annulated Indole Analogs under Conventional Heating and Microwave Irradiation, and Their Anticancer and Antioxidant Activity. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218100262] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Chauhan J, Dasgupta M, Luthra T, Awasthi A, Tripathy S, Banerjee A, Paul S, Nag D, Chakrabarti S, Chakrabarti G, Sen S. Design, synthesis and biological evaluation of a novel library of antimitotic C2-aroyl/arylimino tryptamine derivatives that are also potent inhibitors of indoleamine-2, 3-dioxygenase (IDO). Eur J Pharm Sci 2018; 124:249-265. [DOI: 10.1016/j.ejps.2018.08.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 08/16/2018] [Accepted: 08/23/2018] [Indexed: 01/26/2023]
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23
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Bzeih T, Naret T, Hachem A, Jaber N, Khalaf A, Bignon J, Brion JD, Alami M, Hamze A. A general synthesis of arylindoles and (1-arylvinyl)carbazoles via a one-pot reaction from N-tosylhydrazones and 2-nitro-haloarenes and their potential application to colon cancer. Chem Commun (Camb) 2018; 52:13027-13030. [PMID: 27752657 DOI: 10.1039/c6cc07666a] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A convergent and effective synthesis of 3-aryl-indoles, 2,3-diaryl indoles, and (1-arylvinyl)carbazoles from a one-pot sequence involving the coupling of N-tosylhydrazones with ortho-nitro-haloarenes followed by a cyclization has been developed. Compound 5i exhibits excellent antiproliferative activity in the low nM range against colon cancer cell lines.
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Affiliation(s)
- Tourin Bzeih
- BioCIS, Equipe Labellisée Ligue Contre le Cancer, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France. and Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon
| | - Timothée Naret
- BioCIS, Equipe Labellisée Ligue Contre le Cancer, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France.
| | - Ali Hachem
- Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon
| | - Nada Jaber
- Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon
| | - Ali Khalaf
- Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon
| | - Jerome Bignon
- Institut de Chimie des Substances Naturelles, UPR 2301, CNRS avenue de la terrasse, F-91198 Gif sur Yvette, France
| | - Jean-Daniel Brion
- BioCIS, Equipe Labellisée Ligue Contre le Cancer, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France.
| | - Mouad Alami
- BioCIS, Equipe Labellisée Ligue Contre le Cancer, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France.
| | - Abdallah Hamze
- BioCIS, Equipe Labellisée Ligue Contre le Cancer, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France.
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24
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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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25
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Halawa AH, El-Gilil SMA, Bedair AH, Shaaban M, Frese M, Sewald N, Eliwa EM, El-Agrody AM. Synthesis, biological activity and molecular modeling study of new Schiff bases incorporated with indole moiety. ACTA ACUST UNITED AC 2017; 72:467-475. [PMID: 28525356 DOI: 10.1515/znc-2017-0025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 04/25/2017] [Indexed: 11/15/2022]
Abstract
A new series of heterocyclic Schiff bases 2-9 containing indole moiety were synthesized by facile and efficient condensation of indole-3/2/5-carboxaldehyde (1a/1b/1c) with different aromatic and heterocyclic primary amines using conventional and/or microwave irradiation methods. The structures of the obtained compounds were assigned by sophisticated spectroscopic and spectrometric techniques (1D-NMR, 2D-NMR and MS). The synthesized compounds were screened for their cytotoxicity and antibacterial activities. In vitro cytotoxicity screening revealed that compound 5 exhibited moderate activity against KB-3-1 cell line (IC50=57.7 μM) while 5-indolylimino derivative 7 indicated close to the activity (IC50=19.6 μM) in comparison with the positive control (+)-Griseofulvin (IC50=19.2 μM), while the tested compounds 5, 6b, 7 and 9 revealed good or moderate antibacterial activity. In addition, molecular docking study of Schiff bases 2-9 was performed by Molecular Operating Environment (MOE 2014.09) program on the matrix metalloproteinase-8 (MMP-8) (Protein Data Bank (PDB) ID: 1MNC) in an attempt to explore their mode of action as anticancer drugs.
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26
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Wang Z, Yin Z, Wu XF. 3-Acylindoles Synthesis: Ruthenium-Catalyzed Carbonylative Coupling of Indoles and Aryl Iodides. Org Lett 2017; 19:4680-4683. [DOI: 10.1021/acs.orglett.7b02320] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Zechao Wang
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Zhiping Yin
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
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27
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Halawa AH, Bedair AH, El-Agrody AM, Eliwa EM, Frese M, Sewald N, Shaaban M. Synthesis and biological activities of new bis-indole derivatives via microwave irradiation. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2017. [DOI: 10.1515/znb-2017-0039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Abstract
Three new series of bis-indole derivatives were synthesized based on p-phenylenediamine (2–4, 5 and 6) and 4,4′-ethylenedianiline moieties (7–9) using facile and efficient condensation of three positional isomeric indole-carboxaldehyde derivatives (1a–c) with bifunctional amines upon microwave irradiation. The symmetric dimeric indole derivatives 2–4 as well as non-symmetric analogues 5 and 6 were obtained by in situ condensation of the respective positional 3-, 2- and 5-isomeric indole-carboxaldehydes with p-phenylenediamine, while compounds 7–9 resulted from respective condensation based on 4,4′-ethylenedianiline. Structures of the obtained compounds were deduced by advanced spectroscopic methods (1H NMR, 13C NMR and MS). In agar diffusion assay, derivative 6 showed moderate antibacterial activity against various Gram positive and negative bacteria, while derivative 7 displayed moderate activity against several Gram positive bacteria. However, in Resazurin assay employing the human cervix carcinoma cell line (KB-3-1), derivatives 2–9 turned out to be inactive.
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Affiliation(s)
- Ahmed H. Halawa
- Chemistry Department , Faculty of Science , Al-Azhar University , 11884 Nasr City, Cairo , Egypt
| | - Ahmed H. Bedair
- Chemistry Department , Faculty of Science , Al-Azhar University , 11884 Nasr City, Cairo , Egypt
| | - Ahmed M. El-Agrody
- Chemistry Department , Faculty of Science , Al-Azhar University , 11884 Nasr City, Cairo , Egypt
| | - Essam M. Eliwa
- Chemistry Department , Faculty of Science , Al-Azhar University , 11884 Nasr City, Cairo , Egypt
- Organic and Bioorganic Chemistry, Faculty of Chemistry , Bielefeld University , D-33501 Bielefeld , Germany
| | - Marcel Frese
- Organic and Bioorganic Chemistry, Faculty of Chemistry , Bielefeld University , D-33501 Bielefeld , Germany
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry , Bielefeld University , D-33501 Bielefeld , Germany
| | - Mohamed Shaaban
- Organic and Bioorganic Chemistry, Faculty of Chemistry , Bielefeld University , D-33501 Bielefeld , Germany
- Chemistry of Natural Compounds Department , Division of Pharmaceutical Industries, National Research Centre , Dokki-Cairo 12622 , Egypt
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28
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Synthesis of substituted benzofurans and indoles by Zn-catalyzed tandem Sonogashira-cyclization strategy. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.076] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Lopez SE, Gallagher R, Gilliland RJ, Ghiviriga I, Dolbier WR. Synthesis of 3-phenylsulfonyl-2-trifluoromethyl-1H-indoles: A copper catalyzed cyclization approach. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2016.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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30
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Synthesis of New (E)-2-(1 H-Indole-3-ylcarbonyl)-3-heteroaryl-acrylonitriles via Microwave-Assisted Knoevenagel Condensation. J CHEM-NY 2017. [DOI: 10.1155/2017/8418930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Given the broad spectrum of biological uses of heteroaryl-acrylonitrile derivatives, it is necessary to find simple methods to synthesize and diversify this family of compounds. We report a stereoselective synthesis of a series of new (E)-2-(1H-indole-3-ylcarbonyl)-3-heteroaryl-acrylonitriles (3a–3i) obtained from 3-(cyanoacetyl)indole and heteroaryl-aldehydes under microwave-assisted Knoevenagel reaction at 300 W of potency and 100°C. The desired derivatives (3a–3i) were obtained with variable yields (30–94%) and time reactions (8–90 min). All the heteroaryl-acrylonitriles were characterized by physicoanalytical techniques such IR, 1H, 13C NMR, and electrospray mass spectrometry.
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31
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Gao F, Wang JT, Liu LL, Ma N, Yang C, Gao Y, Xia W. Synthesis of carbonylated heteroaromatic compounds via visible-light-driven intramolecular decarboxylative cyclization of o-alkynylated carboxylic acids. Chem Commun (Camb) 2017; 53:8533-8536. [DOI: 10.1039/c7cc04813k] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An efficient strategy for the easy access to carbonylated heteroaromatic compounds has been developed via a visible-light-promoted intramolecular decarboxylative cyclization reaction of o-alkynylated carboxylic acids.
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Affiliation(s)
- Fei Gao
- State Key Lab of Urban Water Resource and Environment
- Harbin Institute of Technology (Shenzhen)
- Shenzhen
- China
| | - Jiu-Tao Wang
- State Key Lab of Urban Water Resource and Environment
- Harbin Institute of Technology (Shenzhen)
- Shenzhen
- China
| | - Lin-Lin Liu
- State Key Lab of Urban Water Resource and Environment
- Harbin Institute of Technology (Shenzhen)
- Shenzhen
- China
| | - Na Ma
- State Key Lab of Urban Water Resource and Environment
- Harbin Institute of Technology (Shenzhen)
- Shenzhen
- China
| | - Chao Yang
- State Key Lab of Urban Water Resource and Environment
- Harbin Institute of Technology (Shenzhen)
- Shenzhen
- China
| | - Yuan Gao
- School of Chemistry and Chemical Engineering
- Yantai University
- Yantai
- China
| | - Wujiong Xia
- State Key Lab of Urban Water Resource and Environment
- Harbin Institute of Technology (Shenzhen)
- Shenzhen
- China
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32
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Menezes JCJMDS. Arylidene indanone scaffold: medicinal chemistry and structure–activity relationship view. RSC Adv 2017. [DOI: 10.1039/c6ra28613e] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Arylidene indanone (AI) scaffolds are considered as the rigid cousins of chalcones, incorporating the α,β-unsaturated ketone system of chalcones forming a cyclic 5 membered ring.
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33
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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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34
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Biradar JS, Somappa SB. Synthesis of novel Indolyl benzo[b][1,4]diazepins as potent antimicrobial and antioxidant agents. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2011.11.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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35
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Sravanthi T, Manju S. Indoles — A promising scaffold for drug development. Eur J Pharm Sci 2016; 91:1-10. [DOI: 10.1016/j.ejps.2016.05.025] [Citation(s) in RCA: 313] [Impact Index Per Article: 39.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Revised: 05/17/2016] [Accepted: 05/25/2016] [Indexed: 11/30/2022]
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36
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Patel VK, Rajak H. Synthesis, biological evaluation and molecular docking studies of 2-amino-3,4,5-trimethoxyaroylindole derivatives as novel anticancer agents. Bioorg Med Chem Lett 2016; 26:2115-8. [DOI: 10.1016/j.bmcl.2016.03.081] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 03/04/2016] [Accepted: 03/24/2016] [Indexed: 11/25/2022]
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37
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Mizoi K, Mashima Y, Kawashima Y, Takahashi M, Mimori S, Hosokawa M, Murakami Y, Hamana H. A new methodology for functionalization at the 3-position of indoles by a combination of boron Lewis acid with nitriles. Chem Pharm Bull (Tokyo) 2016; 63:538-45. [PMID: 26133069 DOI: 10.1248/cpb.c15-00157] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We discovered that a reagent comprising a combination of PhBCl2 and nitriles was useful for syntheses of both 3-acylindoles and 1-(1H-indol-3-yl)alkylamine from indoles. The reaction proceeded selectively at the 3-position of indoles providing 3-acylindoles in moderate to high yields on treatment with the above reagent. Furthermore, the reaction provided the corresponding amine products in moderate to high yields after the intermediate imine was reduced by NaBH3CN. These reactions proceeded under mild conditions and are applicable to the formation of indoles functionalized at the 3-position.
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Affiliation(s)
- Kenta Mizoi
- Faculty of Pharmacy, Chiba Institute of Science
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38
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39
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Kusakabe T, Kato K, Ariyama T, Sato K, Funatogawa M, Lee D, Takahashi K. Pd(II)-Catalyzed Ligand-Controlled Synthesis of 2,3-Dihydroisoxazole-4-carboxylates and Bis(2,3-dihydroisoxazol-4-yl)methanones. HETEROCYCLES 2016. [DOI: 10.3987/com-15-s(t)22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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40
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Lee HY, Chang CY, Lai MJ, Chuang HY, Kuo CC, Chang CY, Chang JY, Liou JP. Antimitotic and antivascular activity of heteroaroyl-2-hydroxy-3,4,5-trimethoxybenzenes. Bioorg Med Chem 2015; 23:4230-4236. [DOI: 10.1016/j.bmc.2015.06.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Revised: 06/16/2015] [Accepted: 06/17/2015] [Indexed: 11/15/2022]
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41
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Conda-Sheridan M, Lee SS, Preslar AT, Stupp SI. Esterase-activated release of naproxen from supramolecular nanofibres. Chem Commun (Camb) 2015; 50:13757-60. [PMID: 25251829 DOI: 10.1039/c4cc06340f] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanofibre forming peptide amphiphiles were conjugated to naproxen through an esterase-sensitive linker. The amount of naproxen released, in the presence of enzymes, was influenced by the linker conjugating the drug to the supramolecular assembly. In vitro studies showed the anti-inflammatory activity of the released drug was maintained.
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Affiliation(s)
- Martin Conda-Sheridan
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.
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42
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Kwon S, Han YT, Jung JW. Studies on the Synthesis of Indothiazinone and Its Derivatives via Direct 3-Acylation of Indole. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1040513] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Sugyeong Kwon
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Korea
| | | | - Jong-Wha Jung
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Korea
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43
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Tran PH, Hansen PE, Hoang HM, Chau DKN, Le TN. Indium triflate in 1-isobutyl-3-methylimidazolium dihydrogen phosphate: an efficient and green catalytic system for Friedel–Crafts acylation. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.051] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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44
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3-(3,4,5-Trimethoxyphenylselenyl)-1H-indoles and their selenoxides as combretastatin A-4 analogs: Microwave-assisted synthesis and biological evaluation. Eur J Med Chem 2015; 90:184-94. [DOI: 10.1016/j.ejmech.2014.11.024] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 11/09/2014] [Accepted: 11/11/2014] [Indexed: 11/21/2022]
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45
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Das T, Chakraborty A, Sarkar A. Palladium catalyzed addition of arylboronic acid or indole to nitriles: synthesis of aryl ketones. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.11.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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46
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Loach R, Fenton OS, Amaike K, Siegel DS, Ozkal E, Movassaghi M. C7-derivatization of C3-alkylindoles including tryptophans and tryptamines. J Org Chem 2014; 79:11254-63. [PMID: 25343326 PMCID: PMC4241164 DOI: 10.1021/jo502062z] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Indexed: 02/07/2023]
Abstract
A versatile strategy for C7-selective boronation of tryptophans, tryptamines, and 3-alkylindoles by way of a single-pot C2/C7-diboronation-C2-protodeboronation sequence is described. The combination of a mild iridium-catalyzed C2/C7-diboronation followed by an in situ palladium-catalyzed C2-protodeboronation allows efficient entry to valuable C7-boroindoles that enable further C7-derivatization. The versatility of the chemistry is highlighted by the gram-scale synthesis of C7-boronated N-Boc-L-tryptophan methyl ester and the rapid synthesis of C7-halo, C7-hydroxy, and C7-aryl tryptophan derivatives.
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Affiliation(s)
- Richard
P. Loach
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue 18-292, Cambridge, Massachusetts 02139, United States
| | - Owen S. Fenton
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue 18-292, Cambridge, Massachusetts 02139, United States
| | - Kazuma Amaike
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue 18-292, Cambridge, Massachusetts 02139, United States
| | - Dustin S. Siegel
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue 18-292, Cambridge, Massachusetts 02139, United States
| | - Erhan Ozkal
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue 18-292, Cambridge, Massachusetts 02139, United States
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue 18-292, Cambridge, Massachusetts 02139, United States
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47
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Zhang P, Xiao T, Xiong S, Dong X, Zhou L. Synthesis of 3-Acylindoles by Visible-Light Induced Intramolecular Oxidative Cyclization of o-Alkynylated N,N-Dialkylamines. Org Lett 2014; 16:3264-7. [PMID: 24895026 DOI: 10.1021/ol501276j] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ping Zhang
- School of Chemistry
and Chemical
Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China
| | - Tiebo Xiao
- School of Chemistry
and Chemical
Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China
| | - Shengwei Xiong
- School of Chemistry
and Chemical
Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China
| | - Xichang Dong
- School of Chemistry
and Chemical
Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China
| | - Lei Zhou
- School of Chemistry
and Chemical
Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China
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48
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Dawande SG, Kanchupalli V, Kalepu J, Chennamsetti H, Lad BS, Katukojvala S. Rhodium Enalcarbenoids: Direct Synthesis of Indoles by Rhodium(II)-Catalyzed [4+2] Benzannulation of Pyrroles. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400161] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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49
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Dawande SG, Kanchupalli V, Kalepu J, Chennamsetti H, Lad BS, Katukojvala S. Rhodium enalcarbenoids: direct synthesis of indoles by rhodium(II)-catalyzed [4+2] benzannulation of pyrroles. Angew Chem Int Ed Engl 2014; 53:4076-80. [PMID: 24590818 DOI: 10.1002/anie.201400161] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Indexed: 11/11/2022]
Abstract
Disclosed herein is the design of an unprecedented electrophilic rhodium enalcarbenoid which results from rhodium(II)-catalyzed decomposition of a new class of enaldiazo compounds. The synthetic utility of these enalcarbenoids has been successfully demonstrated in the first transition-metal-catalyzed [4+2] benzannulation of pyrroles, thus leading to substituted indoles. The new benzannulation has been applied to the efficient synthesis of the natural product leiocarpone as well as a potent adipocyte fatty-acid binding protein inhibitor.
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Affiliation(s)
- Sudam Ganpat Dawande
- Department of Chemistry, Indian Institute of Science Education & Research, Bhopal, Madhya Pradesh 462066 (India) http://home.iiserbhopal.ac.in/∼sk/
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50
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Chen XB, Wang XY, Zhu DD, Yan SJ, Lin J. Three-component domino reaction synthesis of highly functionalized bicyclic pyrrole derivatives. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.062] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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