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Wang SY, Shi XC, Laborda P. Indole-based melatonin analogues: Synthetic approaches and biological activity. Eur J Med Chem 2020; 185:111847. [DOI: 10.1016/j.ejmech.2019.111847] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/01/2019] [Accepted: 11/01/2019] [Indexed: 12/11/2022]
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2
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Almutairi MS, Zakaria AS, Ignasius PP, Al-Wabli RI, Joe IH, Attia MI. Synthesis, spectroscopic investigations, DFT studies, molecular docking and antimicrobial potential of certain new indole-isatin molecular hybrids: Experimental and theoretical approaches. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Al-Wabli RI, Zakaria AS, Attia MI. Synthesis, Spectroscopic Characterization and Antimicrobial Potential of Certain New Isatin-Indole Molecular Hybrids. Molecules 2017; 22:E1958. [PMID: 29140257 PMCID: PMC6150181 DOI: 10.3390/molecules22111958] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 10/29/2017] [Accepted: 11/08/2017] [Indexed: 12/19/2022] Open
Abstract
Molecular hybridization has a wide application in medicinal chemistry to obtain new biologically active compounds. New isatin-indole molecular hybrids 5a-n have been synthesized and characterized by various spectroscopic tools. The in vitro antimicrobial potential of the prepared compounds 5a-n was assessed using diameter of the inhibition zone (DIZ) and minimum inhibitory concentration (MIC) assays against a panel of Gram-negative bacteria, Gram-positive bacteria and fungi. Most of the synthesized compounds 5a-n showed weak activities against Gram-negative bacteria while compounds 5b and 5c exhibited good activities against Gram-positive bacteria. On the other hand, compound 5j emerged as the most active compound towards Candida albicans (C. albicans), with an MIC value of 3.9 µg/mL, and compound 5g as the most active congener towards Asperagillus niger (A. niger), with an MIC value of 15.6 µg/mL. Moreover, compound 5h manifested the best anti-P. notatum effect, with an MIC value of 7.8 µg/mL, making it equipotent with compound 5g.
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Affiliation(s)
- Reem I Al-Wabli
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
| | - Azza S Zakaria
- Department of Microbiology and Immunology, Faculty of Pharmacy, Alexandria University, Alexandria 21500, Egypt.
| | - Mohamed I Attia
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre (ID: 60014618), El Bohooth Street, Dokki, Giza 12622, Egypt.
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Örkényi R, Beke G, Riethmüller E, Szakács Z, Kóti J, Faigl F, Éles J, Greiner I. Environmentally Friendly Synthesis of Indoline Derivatives using Flow-Chemistry Techniques. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700849] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Róbert Örkényi
- Department of Organic Chemistry and Technology; Budapest University of Technology and Economics; Budafoki út 8 1111 Budapest Hungary
| | - Gyula Beke
- Gedeon Richter Plc.; Gyömrői út 19-21 1103 Budapest Hungary
| | | | - Zoltán Szakács
- Gedeon Richter Plc.; Gyömrői út 19-21 1103 Budapest Hungary
| | - János Kóti
- Gedeon Richter Plc.; Gyömrői út 19-21 1103 Budapest Hungary
| | - Ferenc Faigl
- Department of Organic Chemistry and Technology; Budapest University of Technology and Economics; Budafoki út 8 1111 Budapest Hungary
| | - János Éles
- Gedeon Richter Plc.; Gyömrői út 19-21 1103 Budapest Hungary
| | - István Greiner
- Gedeon Richter Plc.; Gyömrői út 19-21 1103 Budapest Hungary
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5
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Journé AS, Habib SAM, Dodda BR, Morcos MNF, Sadek MS, Tadros SAA, Witt-Enderby PA, Jockers R, Zlotos DP. N1-linked melatonin dimers as bivalent ligands targeting dimeric melatonin receptors. MEDCHEMCOMM 2014. [DOI: 10.1039/c4md00079j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Zlotos DP, Jockers R, Cecon E, Rivara S, Witt-Enderby PA. MT1 and MT2 Melatonin Receptors: Ligands, Models, Oligomers, and Therapeutic Potential. J Med Chem 2013; 57:3161-85. [DOI: 10.1021/jm401343c] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Darius. P. Zlotos
- Department
of Pharmaceutical Chemistry, The German University in Cairo, New Cairo City, 11835 Cairo, Egypt
| | - Ralf Jockers
- Inserm, U1016,
Institut Cochin, Paris, France
- CNRS UMR
8104, Paris, France
- Univ. Paris Descartes, Sorbonne Paris Cite, Paris, France
| | - Erika Cecon
- Department
of Physiology, Institute of Bioscience, University of Sao Paulo, Sao Paulo 05508-090, Brazil
| | - Silvia Rivara
- Dipartimento
di Farmacia, Università degli Studi di Parma, Parco Area
delle Scienze 27/A, 43124 Parma, Italy
| | - Paula A. Witt-Enderby
- Division
of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, 421 Mellon Hall, Pittsburgh, Pennsylvania 15282, United States
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Heckman D, Attia MI, Behnam MAM, Mohsen AMY, Markl C, Julius J, Sethi S, Witt-Enderby PA, Zlotos DP. 2-[(1,3-Dihydro-2H-isoindol-2-yl)methyl]melatonin – a novel MT2-selective melatonin receptor antagonist. MEDCHEMCOMM 2011. [DOI: 10.1039/c1md00149c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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8
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Sripha K, Paul Zlotos D, Holzgrabe UI, Ruchirawat S. A New Synthetic Approach to Pentacyclic Ring, 6,7,14,15-Tetrahydro[1,5]diazocino[1,2-a:6,5-a’]-8-dihydrodiindole. HETEROCYCLES 2011. [DOI: 10.3987/com-11-12340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Lim HJ, Gallucci JC, RajanBabu TV. Annulated diketopiperazines from dipeptides or Schöllkopf reagents via tandem cyclization-intramolecular N-arylation. Org Lett 2010; 12:2162-5. [PMID: 20387855 DOI: 10.1021/ol100663y] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Facile CuI-mediated N-arylation of diketopiperazine using the Fukuyama modification of the Ullmann-Goldberg reaction can be exploited in new approaches to enantiopure polycyclic diketopiperazines from easily assembled dipeptides or functionalized Schöllkopf reagents.
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Affiliation(s)
- Hwan Jung Lim
- Department of Chemistry, The Ohio State University, 100 W. 18th Avenue, Columbus, Ohio 43210, USA
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Synthesis and pharmacological evaluation of 1,2,3,4-tetrahydropyrazino[1,2-a]indole and 2-[(phenylmethylamino)methyl]-1H-indole analogues as novel melatoninergic ligands. Bioorg Med Chem 2009; 17:4583-94. [DOI: 10.1016/j.bmc.2009.04.068] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2008] [Revised: 04/27/2009] [Accepted: 04/30/2009] [Indexed: 11/23/2022]
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Zlotos DP, Attia MI, Julius J, Sethi S, Witt-Enderby PA. 2-[(2,3-Dihydro-1H-indol-1-yl)methyl]melatonin Analogues: A Novel Class of MT2-Selective Melatonin Receptor Antagonists. J Med Chem 2009; 52:826-33. [DOI: 10.1021/jm800974d] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Darius P. Zlotos
- Institute of Pharmacy and Food Chemistry, Pharmaceutical Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany, and Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, 421 Mellon Hall, Pittsburgh, Pennsylvania 15282
| | - Mohamed I. Attia
- Institute of Pharmacy and Food Chemistry, Pharmaceutical Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany, and Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, 421 Mellon Hall, Pittsburgh, Pennsylvania 15282
| | - Justin Julius
- Institute of Pharmacy and Food Chemistry, Pharmaceutical Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany, and Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, 421 Mellon Hall, Pittsburgh, Pennsylvania 15282
| | - Shalini Sethi
- Institute of Pharmacy and Food Chemistry, Pharmaceutical Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany, and Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, 421 Mellon Hall, Pittsburgh, Pennsylvania 15282
| | - Paula A. Witt-Enderby
- Institute of Pharmacy and Food Chemistry, Pharmaceutical Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany, and Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, 421 Mellon Hall, Pittsburgh, Pennsylvania 15282
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Synthesis and pharmacological evaluation of pentacyclic 6a,7-dihydrodiindole and 2,3-dihydrodiindole derivatives as novel melatoninergic ligands. Bioorg Med Chem 2008; 16:7654-61. [DOI: 10.1016/j.bmc.2008.07.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2008] [Revised: 06/27/2008] [Accepted: 07/04/2008] [Indexed: 11/17/2022]
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13
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Attia MI, Güclü D, Hertlein B, Julius J, Witt-Enderby PA, Zlotos DP. Synthesis, NMR conformational analysis and pharmacological evaluation of 7,7a,13,14-tetrahydro-6H-cyclobuta[b]pyrimido[1,2-a:3,4-a′]diindole analogues as melatonin receptor ligands. Org Biomol Chem 2007; 5:2129-37. [PMID: 17581657 DOI: 10.1039/b705550a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A structure for the self-condensation product of 2-(1H-indol-2-yl)ethyl tosylate 2a, previously proposed as 6,7,14,15-tetrahydro-15aH-azocino[1,2-a:6,5-b]diindole 3a, was revised based on the (13)C-2D-INADEQUATE experiment, and proved to be 7,7a,13,14-tetrahydro-6H-cyclobuta[b]pyrimido[1,2-a:3,4-a']diindole 4a. A mechanism for the unexpected formation of this novel hexacyclic heterocycle was proposed and its NMR solution structure was elucidated. Five derivatives of the title ring skeleton 12-16 designed as melatonin receptor ligands were synthesized and their affinities for the human MT(1) and MT(2) receptors were determined. Both butyramides 13 and 15, as well as the non-methoxy acetamide 12 exhibited micromolar binding affinities for both receptors being slightly MT(2) selective. The methoxy acetamide 14 showed the best pharmacological profile exhibiting a five times higher affinity for MT(1) (K(i) = 49 nM) than for MT(2) (K(i) = 246 nM) receptor.
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Affiliation(s)
- Mohamed I Attia
- Pharmaceutical Institute, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
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