1
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Efficient synthesis of chromeno[2,3-b]pyridine derivatives using Zn(OTf)2 as a catalyst: DFT computations, Molecular Docking and ADME Studies. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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2
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Jayabal K, Elumalai D, Leelakrishnan S, Bhattacharya S, Rengarajan V, Kannan T, Chuang SC. Green and Regioselective Approach for the Synthesis of 3-Substituted Indole Based 1,2-Dihydropyridine and Azaxanthone Derivatives as a Potential Lead for SARS-CoV-2 and Delta Plus Mutant Virus: DFT and Docking Studies. ACS OMEGA 2022; 7:43856-43876. [PMID: 36506171 PMCID: PMC9730777 DOI: 10.1021/acsomega.2c04990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/12/2022] [Indexed: 06/17/2023]
Abstract
Great attempts have been done for the development of novel antiviral compounds against SAR-CoV-2 to end this pandemic situation and save human society. Herewith, we have synthesized 3-substituted indole/2-substituted pyrrole 1,2-dihydropyridine and azaxanthone scaffolds using simple, commercially available starting materials in a one-pot, green, and regioselective manner. Further, the regioselectivity of product formation was confirmed by various studies such as controlled experiments, density functional theory (DFT), Mulliken atomic charge, and electrostatic potential (ESP) surface. In addition, 3-substituted indole 1,2-dihydropyridine was successfully converted into a biologically enriched pharmacophore scaffold, viz., indolylimidazopyridinylbenzofuran scaffold, in excellent yield. Moreover, the synthesized 3-substituted indole 1,2-dihydropyridine/2-substituted pyrroles were analyzed in docking studies for anti-SARS-CoV-2 properties against their main protease (Mpro) and anti-Delta plus properties against their protein of the Delta plus K417N mutant. Further, the drug-likeness prediction was analyzed by the Lipinski rule and other pharmacokinetic properties like absorption, distribution, metabolism, excretion, and toxicity using preADMET prediction. Interestingly, the docking results show that out of 20 synthesized compounds, 5 of them for Mpro of SAR-CoV-2 and 9 of them for 7NX7 spike glycoprotein's A chain of Delta plus K417N show greater binding affinity when compared with remdesivir that is the first to receive FDA approval and is currently used as a potent drug for the treatment of COVID-19. These results suggest that indole/pyrrole substituted 1,2-dihydropyridine derivatives are capable of combating SARS-CoV-2 and its Delta plus mutant.
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Affiliation(s)
- Kamalraja Jayabal
- Department
of Chemistry, Pondicherry University, Puducherry 605014, India
- Department
of Applied Chemistry, National Yang Ming
Chiao Tung University, Hsinchu 30010, Taiwan R.O.C
| | | | - Saraswathi Leelakrishnan
- Department
of Chemistry, Pondicherry University, Puducherry 605014, India
- Department
of Chemistry, Nirmala College for Women, Coimbatore 641018, India
| | - Suman Bhattacharya
- Department
of Physics, University of Limerick, Castletroy, Limerick V94
T9PX , Republic of Ireland
| | | | | | - Shih-Ching Chuang
- Department
of Applied Chemistry, National Yang Ming
Chiao Tung University, Hsinchu 30010, Taiwan R.O.C
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3
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Gan J, Xin J, Xue Y, Wang C. [3+3] Annulation Reaction of of 2‐Amino‐4H‐chromen‐4‐ones with Cinnamaldehydes or Aromatic Aldehydes and Ethanal in One Pot: Access to 2‐Aryl‐5H‐Chromeno[2,3‐b]pyridin‐5‐ones. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jianbo Gan
- Yangzhou University School of Chemistry and Chemical Engineering 180 siwangting 225002 Yangzhou CHINA
| | - Junhu Xin
- Yangzhou University School of Chemistry and Chemical Engineering 180 siwangting 225002 Yangzhou CHINA
| | - Yuhang Xue
- Yangzhou University School of Chemistry and Chemical Engineering 180 siwangting 225002 Yangzhou CHINA
| | - Cunde Wang
- Yangzhou University School of Chemistry and Chemical Engineering 180 Siwangting Road 225002 Yangzhou CHINA
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4
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Li H, Xin J, Xue Y, Wang C. DBU-Mediated Domino Annulation Reaction of 2-Amino-4 H-chromen-4-ones and Aromatic Aldehydes for Synthesis of Polysubstituted 3-Hydroxy-5 H-chromeno[2,3- b]pyridinones. J Org Chem 2022; 87:11857-11864. [PMID: 35960790 DOI: 10.1021/acs.joc.2c01152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A pseudo-three-component annulation reaction of substituted 2-amino-4H-chromen-4-ones with aromatic aldehydes promoted by DBU was investigated to access polysubstituted 5H-chromeno[2,3-b]pyridines. This reaction included a sequential intermolecular nucleophilic addition/Michael cyclization/intramolecular epoxidation/ring opening/aromatization sequence, which possessed excellent step and atom economy in a single operation for generating 3-hydroxy-5H-chromeno[2,3-b]pyridines from readily available substrates.
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Affiliation(s)
- Haiwen Li
- School of Chemistry and Chemical Engineering, Yangzhou University,180 Siwangting Street, Yangzhou 225002, PR China
| | - Junhu Xin
- School of Chemistry and Chemical Engineering, Yangzhou University,180 Siwangting Street, Yangzhou 225002, PR China
| | - Yuhang Xue
- School of Chemistry and Chemical Engineering, Yangzhou University,180 Siwangting Street, Yangzhou 225002, PR China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering, Yangzhou University,180 Siwangting Street, Yangzhou 225002, PR China
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5
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Wang F, Nishimoto Y, Yasuda M. Insertion of Diazo Esters into C-F Bonds toward Diastereoselective One-Carbon Elongation of Benzylic Fluorides: Unprecedented BF 3 Catalysis with C-F Bond Cleavage and Re-formation. J Am Chem Soc 2021; 143:20616-20621. [PMID: 34766748 DOI: 10.1021/jacs.1c10517] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Selective transformation of C-F bonds remains a significant goal in organic chemistry, but C-F insertion of a one-carbon-atom unit has never been established. Herein we report the BF3-catalyzed formal insertion of diazo esters as one-carbon-atom sources into C-F bonds to accomplish one-carbon elongation of benzylic fluorides. A DFT calculation study revealed that the BF3 catalyst could contribute to both C-F bond cleavage and re-formation. This elongation provided α-fluoro-α,β-diaryl esters with a high level of diastereoselectivity. Various benzylic fluorides and diazo esters were applicable. The synthetic utility of this method was demonstrated by the synthesis of a fluoro analogue of a compound that is used as a transient receptor and potential canonical channel inhibitor.
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Affiliation(s)
- Fei Wang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshihiro Nishimoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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6
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7
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Maia M, Resende DISP, Durães F, Pinto MMM, Sousa E. Xanthenes in Medicinal Chemistry - Synthetic strategies and biological activities. Eur J Med Chem 2020; 210:113085. [PMID: 33310284 DOI: 10.1016/j.ejmech.2020.113085] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/30/2020] [Accepted: 11/30/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Xanthenes are a special class of oxygen-incorporating tricyclic compounds. Structurally related to xanthones, the presence of different substituents in position 9 strongly influences their physical and chemical properties, as well as their biological applications. This review explores the synthetic methodologies developed to obtain 9H-xanthene, 9-hydroxyxanthene and xanthene-9-carboxylic acid, as well as respective derivatives, from simple starting materials or through modification of related structures. Azaxanthenes, bioisosteres of xanthenes, are also explored. Efficiency, safety, ecological impact and applicability of the described synthetic methodologies are discussed. Synthesis of multi-functionalized derivatives with drug-likeness properties are also reported and their activities explored. Synthetic methodologies for obtaining (aza)xanthenes from simple building blocks are available, and electrochemical and/or metal free procedures recently developed arise as greener and efficient methodologies. Nonetheless, the synthesis of xanthenes through the modification of the carbonyl in position 9 of xanthones represents the most straightforward procedure to easily obtain a variety of (aza)xanthenes. (Aza)xanthene derivatives displayed biological activity as neuroprotector, antitumor, antimicrobial, among others, proving the versatility of this nucleus for different biological applications. However, in some cases their chemical structures suggest a lack of pharmacokinetic properties being associated with safety concerns, which should be overcome if intended for clinical evaluation.
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Affiliation(s)
- Miguel Maia
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros Do Porto de Leixões, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade Do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Diana I S P Resende
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros Do Porto de Leixões, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade Do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Fernando Durães
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros Do Porto de Leixões, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade Do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Madalena M M Pinto
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros Do Porto de Leixões, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade Do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Emília Sousa
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros Do Porto de Leixões, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade Do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
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8
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9
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Resende DISP, Durães F, Maia M, Sousa E, Pinto MMM. Recent advances in the synthesis of xanthones and azaxanthones. Org Chem Front 2020. [DOI: 10.1039/d0qo00659a] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A useful chemical toolbox for (aza)xanthones from 2012 to 2020 that covers the optimization of known procedures and novel methodologies.
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Affiliation(s)
- Diana I. S. P. Resende
- CIIMAR – Centro Interdisciplinar de Investigação Marinha e Ambiental
- Terminal de Cruzeiros do Porto de Leixões
- 4450-208 Matosinhos
- Portugal
- Laboratório de Química Orgânica e Farmacêutica
| | - Fernando Durães
- CIIMAR – Centro Interdisciplinar de Investigação Marinha e Ambiental
- Terminal de Cruzeiros do Porto de Leixões
- 4450-208 Matosinhos
- Portugal
- Laboratório de Química Orgânica e Farmacêutica
| | - Miguel Maia
- CIIMAR – Centro Interdisciplinar de Investigação Marinha e Ambiental
- Terminal de Cruzeiros do Porto de Leixões
- 4450-208 Matosinhos
- Portugal
- Laboratório de Química Orgânica e Farmacêutica
| | - Emília Sousa
- CIIMAR – Centro Interdisciplinar de Investigação Marinha e Ambiental
- Terminal de Cruzeiros do Porto de Leixões
- 4450-208 Matosinhos
- Portugal
- Laboratório de Química Orgânica e Farmacêutica
| | - Madalena M. M. Pinto
- CIIMAR – Centro Interdisciplinar de Investigação Marinha e Ambiental
- Terminal de Cruzeiros do Porto de Leixões
- 4450-208 Matosinhos
- Portugal
- Laboratório de Química Orgânica e Farmacêutica
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10
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Gorokhov VY, Makhova TV. Synthesis and Antibactericidal Activities of Amines and Imines Containing (Aza, Thio)Xanthene Rings. Pharm Chem J 2016. [DOI: 10.1007/s11094-016-1483-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Conlon DA, Natalie KJ, Cuniere N, Razler TM, Zhu J, de Mas N, Tymonko S, Fraunhoffer KJ, Sortore E, Rosso VW, Xu Z, Adams ML, Patel A, Huang J, Gong H, Weinstein DS, Quiroz F, Chen DC. Development of a Practical Synthesis of Functionalized Azaxanthene-Derived Nonsteroidal Glucocorticoid Receptor Modulators. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.6b00035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Hua Gong
- Research
and Development, Bristol-Myers Squibb, Princeton, New Jersey 08543-4000, United States
| | - David S. Weinstein
- Research
and Development, Bristol-Myers Squibb, Princeton, New Jersey 08543-4000, United States
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12
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13
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Rarig RAF, Tran MN, Chenoweth DM. Synthesis and Conformational Dynamics of the Reported Structure of Xylopyridine A. J Am Chem Soc 2013; 135:9213-9. [DOI: 10.1021/ja404737q] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Robert-André F. Rarig
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania
19104-6323, United States
| | - Mai N. Tran
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania
19104-6323, United States
| | - David M. Chenoweth
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania
19104-6323, United States
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14
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Su W, Jin C, Li J. Synthesis of 1-Azaxanthones and 1-Azathioxanthones by Yb(OTf)3/TfOH Co-Catalyzed Intramolecular Friedel-Crafts Reaction. HETEROCYCLES 2010. [DOI: 10.3987/com-10-12029] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Affiliation(s)
- Hideki Amii
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan, and Department of Applied Chemistry, Faculty of Engineering, Okayama Univeristy, Okayama 700-8530, Japan
| | - Kenji Uneyama
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan, and Department of Applied Chemistry, Faculty of Engineering, Okayama Univeristy, Okayama 700-8530, Japan
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16
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XU F, PANG J, LU B, WANG J, ZHANG Y, SHE Z, VRIJMOED LLP, GARETH JONES EB, LIN Y. Two Metabolites with DNA-Binding Affinity from the Mangrove FungusXylariasp. (#2508) from the South China Sea Coast. CHINESE J CHEM 2009. [DOI: 10.1002/cjoc.200990059] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Synthesis of anticancer compounds, III (Bioorg Med Chem Lett 17, 6091, 2007), carbinol derivatives of azanaphthoquinone annelated pyrroles. MONATSHEFTE FUR CHEMIE 2008. [DOI: 10.1007/s00706-008-0024-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Holzer W, A. Eller G, W. Haring A, Datterl B, Zwettler M. Tri- and Tetracyclic Heteroaromatic Systems: Synthesis of Novel Benzo-, Benzothieno- and Thieno-Fused Pyrano[2,3-c]pyrazol-4(1H)-ones. HETEROCYCLES 2007. [DOI: 10.3987/com-06-10908] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Pasutto FM, Setiloane BP, Abuzar S, Lee KL. A Facile Synthesis of 3-(21Hydroxybenzoyl)-1-Methyl-2(1H)-Pyridinones From Benzopyrano [2,3-b] Pyridines. SYNTHETIC COMMUN 2006. [DOI: 10.1080/00397918508063847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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New and efficient RCM in pyridinic series: synthesis of 2H-dihydropyrano- or 2,3H-dihydrooxepino[3,2-b]pyridines. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.06.139] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Design and synthesis ofN-(2,4=difluorophenyl)-2-(3-trifluoromethylphenoxy)-3-pyridinecarboxamide (diflufenican), a novel pre- and early post-emergence herbicide for use in winter cereals. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/ps.2780180103] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Atkinson P, Findlay KS, Kielar F, Pal R, Parker D, Poole RA, Puschmann H, Richardson SL, Stenson PA, Thompson AL, Yu J. Azaxanthones and azathioxanthones are effective sensitisers for europium and terbium luminescence. Org Biomol Chem 2006; 4:1707-22. [PMID: 16633563 DOI: 10.1039/b601357k] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Several azaxanthone and azathioxanthone sensitising chromophores have been incorporated into macrocyclic ligands and form well-defined Eu and Tb complexes in polar media. Excitation of the heterocyclic chromophore in the range 330 to 382 nm leads to modest amounts of aromatic fluorescence and relatively efficient metal-based luminescence, with absolute metal-based quantum yields of up to 24% in aqueous media.
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23
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Liantonio A, Picollo A, Babini E, Carbonara G, Fracchiolla G, Loiodice F, Tortorella V, Pusch M, Camerino DC. Activation and Inhibition of Kidney CLC-K Chloride Channels by Fenamates. Mol Pharmacol 2005; 69:165-73. [PMID: 16244177 DOI: 10.1124/mol.105.017384] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
CLC-K Cl(-) channels are selectively expressed in kidney and ear, where they are pivotal for salt homeostasis, and loss-of-function mutations of CLC-Kb produce Bartter's syndrome type III. The only ligand known for CLC-K channels is a derivative of the 2-p-chlorophenoxypropionic acid (CPP), 3-phenyl-CPP, which blocks CLC-Ka, but not CLC-Kb. Here we show that in addition to this blocking site, CLC-K channels bear an activating binding site that controls channel opening. Using the voltage-clamp technique on channels expressed in Xenopus laevis oocytes, we found that niflumic acid (NFA) increases CLC-Ka and CLC-Kb currents in the 10 to 1000 microM range. Flufenamic acid (FFA) derivatives or high doses of NFA produced instead an inhibitory effect on CLC-Ka, but not on CLC-Kb, and on blocker-insensitive CLC-Ka mutants, indicating that the activating binding site is distinct from the blocker site. Evaluation of the sensitivity of CLC-Ka to derivatives of NFA and FFA together with a modeling study of these ligands allow us to conclude that one major characteristic of activating compounds is the coplanarity of the two rings of the molecules, whereas block requires a noncoplanar configuration. These molecules provide a starting point for identification of diuretics or drugs useful in the treatment of Bartter's syndrome.
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Affiliation(s)
- Antonella Liantonio
- Unità di Farmacologia, Dipartimento Farmacobiologico, Facoltà di Farmacia, Università di Bari, Bari, Italy
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24
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Harikrishnan LS, Boehm TL, Hollis Showalter HD. A SYNTHESIS OF THE PYRANO[3,2-b]PYRIDINE RING SYSTEM UNDER MILD CONDITIONS. SYNTHETIC COMMUN 2001. [DOI: 10.1081/scc-100000577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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25
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Mongin F, Mongin O, Trécourt F, Godard A, Quéguiner G. Pyridine hydrochloride: a new reagent for the synthesis of o-chloro hydroxy derivatives in pyridine and quinoline series. Tetrahedron Lett 1996. [DOI: 10.1016/s0040-4039(96)01449-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Varvaresou A, Tsotinis A, Papadaki-Valiraki A, Siatra-Papastaikoudi T. Synthesis and structure elucidation of new cytotoxic azathioxanthones. J Heterocycl Chem 1996. [DOI: 10.1002/jhet.5570330360] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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27
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Varvaresou A, Tsotinis A, Papadaki-Valiraki A, Siatra-Papastaikoudi T. New aza-thioxanthones: Synthesis and cytotoxicity. Bioorg Med Chem Lett 1996. [DOI: 10.1016/0960-894x(96)00129-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Mongin O, Rocca P, Thomas-dit-Dumont L, Trécourt F, Marsais F, Godard A, Quéguiner G. Metallation of pyridine N-oxides and application to synthesis. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/p19950002503] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Filippatos E, Papadaki-Valiraki A, Todoulou O, Jacquemin-Sablon A. Synthesis of N-(9H-xanthen-9-yl)aminoalkanamide and N-(9H-thioxanthen-9-yl)aminoalkanamide derivatives and their in vitro evaluation as potential intercalators and antitumor drugs. Arch Pharm (Weinheim) 1994; 327:61-6. [PMID: 8135644 DOI: 10.1002/ardp.19943270202] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A series of new N-(9H-xanthen-9-yl)aminoalkanamide and N-(9H-thioxanthen-9-yl)aminoalkanamide derivatives was synthesized and evaluated as potential intercalators by measuring their DNA binding affinity. They were also tested for cytotoxic activity against L1210. The results suggest that the cytotoxicity of these molecules was not due to an intercalating mechanism.
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Affiliation(s)
- E Filippatos
- Department of Pharmaceutical Chemistry, University of Athens, Greece
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30
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Loza MI, Sanz F, Cadavid MI, Honrubia M, Orallo F, Fontenla JA, Calleja JM, Dot T, Manaut F, Cid MM. Cyproheptadine analogues: synthesis, antiserotoninergic activity, and structure-activity relationships. J Pharm Sci 1993; 82:1090-3. [PMID: 8289119 DOI: 10.1002/jps.2600821105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A series of cyproheptadine related compounds was synthesized and tested pharmacologically. In comparison with cyproheptadine, these compounds do not have a central ring and some contain groups other than N-methyl. Synthesis was carried out with low-valent titanium to generate the exocyclic double bond. The serotoninergic activity of the compounds was determined by standard determination of pA2 (-log of the motor concentration of antagonist required to maintain a constant response when concentration of agonist is doubled) for the inhibition of serotonin-induced contractions in rat stomach fundus. Two of the nitrogen-containing compounds were active, but their activities were lower than that of cyproheptadine. Structure-activity relationships were studied by Mulliken net charges, molecular electrostatic potentials, and conformational analysis; activities are better correlated with electrostatic potentials than with net charges. The decrease in potency of the open cyproheptadine analogues may be due to "dilution" of the active conformer as the result of their conformational flexibility.
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Affiliation(s)
- M I Loza
- Department of Farmacologiá, Universidad de Santiago, Santiago de Compostela, Spain
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Saxena AK, Saxena M. Developments in antihistamines (H1). PROGRESS IN DRUG RESEARCH / FORTSCHRITTE DER ARZNEIMITTELFORSCHUNG / PROGRÈS DES RECHERCHES PHARMACEUTIQUES 1992; 39:35-125. [PMID: 1361999 DOI: 10.1007/978-3-0348-7144-0_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- A K Saxena
- Division of Medicinal Chemistry, Central Drug Research Institute, Lucknow, India
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Trécourt F, Marsais F, Güngör T, Quéguiner G. Improved synthesis of 2,3-disubstituted pyridines by metallation of 2-chloropyridine: a convenient route to fused polyheterocycles. ACTA ACUST UNITED AC 1990. [DOI: 10.1039/p19900002409] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cordonnier G, Sliwa H. A new route to 6-azachromones. An improved synthesis of 2-azaxanthone. J Heterocycl Chem 1987. [DOI: 10.1002/jhet.5570240123] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Synthesis and biological activity of uncondensed cyclic derivatives of piperidine (review). Pharm Chem J 1984. [DOI: 10.1007/bf00779895] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Beelitz K, Praefcke K. Organische Photochemie, XXX. Notiz über einen neuen Weg zum 4-Azaxanthon. European J Org Chem 1979. [DOI: 10.1002/jlac.197919790717] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Sliwa H, Cordonnier C. Synthesis of new fundamental heterocycles. Part VII. Synthesis of 2-azaxanthene. J Heterocycl Chem 1977. [DOI: 10.1002/jhet.5570140136] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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