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Mahendar L, Satyanarayana G. Copper catalyzed coupling of protecting group free and sterically hindered 2-bromobenzyl tertiary alcohols with phenols and anilines: facile synthesis of xanthenes and dihydroacridines. RSC Adv 2016. [DOI: 10.1039/c6ra03447k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Protecting group free and sterically hindered tertiary alcohols used in coupling reaction. Two-step process with a single column chromatography. Synthesis of interesting xanthenes and dihydroacridines.
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Affiliation(s)
- Lodi Mahendar
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Gedu Satyanarayana
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
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2
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3
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Metabotropic Glutamate Receptor 2 Activators. SMALL MOLECULE THERAPEUTICS FOR SCHIZOPHRENIA 2014. [DOI: 10.1007/7355_2014_48] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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4
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Lu C, Dubrovskiy AV, Larock RC. Synthesis of 9-Substituted Xanthenes by the Condensation of Arynes with ortho-Hydroxychalcones. Tetrahedron Lett 2012; 53:2202-2205. [PMID: 22467977 PMCID: PMC3314341 DOI: 10.1016/j.tetlet.2012.02.072] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The reaction of o-(trimethylsilyl)aryl triflates, CsF, and o-hydroxychalcones affords a general and efficient way to prepare biologically interesting 9-substituted xanthenes. This chemistry presumably proceeds by tandem intermolecular nucleophilic attack of the phenoxide of the chalcone on the aryne and subsequent intramolecular Michael addition. The introduction of an external base, Cs(2)CO(3), has proven beneficial in this reaction.
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Affiliation(s)
- Chun Lu
- Department of Chemistry, Iowa State University, Ames, Iowa, 50011, United States
| | - Anton V. Dubrovskiy
- Department of Chemistry, Iowa State University, Ames, Iowa, 50011, United States
| | - Richard C. Larock
- Department of Chemistry, Iowa State University, Ames, Iowa, 50011, United States
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5
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Pintér Á, Klussmann M. Sulfonic Acid-Catalyzed Autoxidative Carbon-Carbon Coupling Reaction under Elevated Partial Pressure of Oxygen. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100563] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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6
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Manna SK, Parai MK, Panda G. An efficient synthesis of 6H,7H-chromeno[4,3-b]chromenes and 6,7-dihydrothio chromeno[3,2-c]chromenes as 9-substituted xanthene like analogs. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.127] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Böss E, Hillringhaus T, Nitsch J, Klussmann M. Lewis acid-catalysed one pot synthesis of substituted xanthenes. Org Biomol Chem 2011; 9:1744-8. [PMID: 21253655 DOI: 10.1039/c0ob00954g] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A direct synthesis of substituted xanthenes from salicylaldehydes and cyclohexenones or tetralones has been developed. The reaction is catalysed by Lewis acids like scandium triflate and furnishes substituted xanthenes in good to excellent yields using either microwave or thermal heating. Microwave heating results in significantly shortened reaction times of 30 min and generally higher yields.
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Affiliation(s)
- Esther Böss
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
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8
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Pintér A, Sud A, Sureshkumar D, Klussmann M. Autoxidative carbon-carbon bond formation from carbon-hydrogen bonds. Angew Chem Int Ed Engl 2010; 49:5004-7. [PMID: 20544762 DOI: 10.1002/anie.201000711] [Citation(s) in RCA: 187] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Aron Pintér
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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9
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A new metabotropic glutamate receptor agonist with in vivo anti-allodynic activity. Bioorg Med Chem 2010; 18:6089-98. [DOI: 10.1016/j.bmc.2010.06.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Revised: 06/16/2010] [Accepted: 06/17/2010] [Indexed: 11/19/2022]
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10
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Pintér Á, Sud A, Sureshkumar D, Klussmann M. Autoxidative Bildung von Kohlenstoff-Kohlenstoff-Bindungen aus Kohlenstoff-Wasserstoff-Bindungen. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201000711] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Cozzi P, Zoli L. A Rational Approach towards the Nucleophilic Substitutions of Alcohols “on Water”. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800622] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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A Rational Approach towards the Nucleophilic Substitutions of Alcohols “on Water”. Angew Chem Int Ed Engl 2008; 47:4162-6. [DOI: 10.1002/anie.200800622] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Avery TD, Greatrex BW, Pedersen DS, Taylor DK, Tiekink ERT. A Concise Route to β-Cyclopropyl Amino Acids Utilizing 1,2-Dioxines and Stabilized Phosphonate Nucleophiles. J Org Chem 2008; 73:2633-40. [DOI: 10.1021/jo7024256] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thomas D. Avery
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia, and Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698
| | - Ben W. Greatrex
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia, and Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698
| | - Daniel Sejer Pedersen
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia, and Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698
| | - Dennis K. Taylor
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia, and Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698
| | - Edward R. T. Tiekink
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia, and Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698
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Brackmann F, de Meijere A. Natural Occurrence, Syntheses, and Applications of Cyclopropyl-Group-Containing α-Amino Acids. 2. 3,4- and 4,5-Methanoamino Acids. Chem Rev 2007; 107:4538-83. [DOI: 10.1021/cr0784083] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Farina Brackmann
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
| | - Armin de Meijere
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
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Marinozzi M, Serpi M, Amori L, Gavilan Diaz M, Costantino G, Meyer U, Flor PJ, Gasparini F, Heckendorn R, Kuhn R, Giorgi G, Hermit MB, Thomsen C, Pellicciari R. Synthesis and preliminary pharmacological evaluation of the four stereoisomers of (2S)-2-(2'-phosphono-3'-phenylcyclopropyl)glycine, the first class of 3'-substituted trans C1'-2'-2-(2'-phosphonocyclopropyl)glycines. Bioorg Med Chem 2007; 15:3161-70. [PMID: 17350267 DOI: 10.1016/j.bmc.2007.02.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2006] [Revised: 02/15/2007] [Accepted: 02/20/2007] [Indexed: 11/18/2022]
Abstract
Four stereoisomers of (2S)-2-(2'-phosphono-3'-phenylcyclopropyl)glycine were synthesized by a stereocontrolled synthetic procedure and evaluated as mGluRs ligands. The (2S,1'R,2'S,3'R)-isomer (PPCG-2) showed to be a group III mGluRs selective ligand endowed with a moderate potency as mGluR4/mGluR6 agonist.
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Affiliation(s)
- Maura Marinozzi
- Dipartimento di Chimica e Tecnologia del Farmaco, Università di Perugia, Via del Liceo, 1- I-06123 Perugia, Italy
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16
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González R, Collado I, de Uralde BL, Marcos A, Martín-Cabrejas LM, Pedregal C, Blanco-Urgoiti J, Pérez-Castells J, Fernández MA, Andis SL, Johnson BG, Wright RA, Schoepp DD, Monn JA. C3′-cis-Substituted carboxycyclopropyl glycines as metabotropic glutamate 2/3 receptor agonists: Synthesis and SAR studies. Bioorg Med Chem 2005; 13:6556-70. [PMID: 16153851 DOI: 10.1016/j.bmc.2005.07.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2005] [Revised: 07/06/2005] [Accepted: 07/13/2005] [Indexed: 11/21/2022]
Abstract
The synthesis of a series of C3'-cis-substituted carboxycyclopropyl glycines bearing a wide variety of functional groups is described, and the structure-activity relationship for this series as agonists of group II metabotropic glutamate receptors is reported.
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17
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Collado I, Pedregal C, Bueno AB, Marcos A, González R, Blanco-Urgoiti J, Pérez-Castells J, Schoepp DD, Wright RA, Johnson BG, Kingston AE, Moher ED, Hoard DW, Griffey KI, Tizzano JP. (2S,1'S,2'R,3'R)-2-(2'-Carboxy-3'-hydroxymethylcyclopropyl) glycine is a highly potent group 2 and 3 metabotropic glutamate receptor agonist with oral activity. J Med Chem 2004; 47:456-66. [PMID: 14711315 DOI: 10.1021/jm030967o] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The asymmetric synthesis and biological activity of (2S,1'S,2'R,3'R)-2-(2'-carboxy-3'-hydroxymethylcyclopropyl) glycine ((+)-3) is described. This novel C-3' substituted carboxy cyclopropyl glycine is a highly potent group 2 and group 3 mGluR agonist that has proven to be orally active in both fear potentiated startle (animal model for anxiety) and PCP-induced motor activation (animal model for psychosis) assays in rats.
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Affiliation(s)
- Iván Collado
- Lilly, SA, Avda. de la Industria 30, 28108 Alcobendas, Madrid, Spain.
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18
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Costantino G, Marinozzi M, Camaioni E, Natalini B, Sarichelou I, Micheli F, Cavanni P, Faedo S, Noe C, Moroni F, Pellicciari R. Stereoselective synthesis and preliminary evaluation of (+)- and (–)-3-methyl-5-carboxy-thien-2-yl-glycine (3-MATIDA): identification of (+)-3-MATIDA as a novel mGluR1 competitive antagonist. ACTA ACUST UNITED AC 2004; 59:93-9. [PMID: 14871500 DOI: 10.1016/j.farmac.2003.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2003] [Accepted: 11/08/2003] [Indexed: 10/26/2022]
Abstract
The synthesis of the (+)- and (-)-isomers of 3-methyl-5-carboxy-thyen-2-yl-glycine (3-MATIDA), heterocyle isosters of carboxyphenylglycines (CPGs), a known class of competitive metabotropic glutamate receptors, was accomplished by a stereoselective Ugi condensation. The two isomers were tested as potential rat mGluR1 ligand and the (+) isomer was found to be a moderately potent antagonist, while the (-) one was inactive.
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Affiliation(s)
- Gabriele Costantino
- Dipartimento di Chimica e Tecnologia del Farmaco. Via del Liceo 1, Perugia 06123, Italy
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19
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Prashad M, Lu Y, Repic O. A Novel Two-Carbon Homologation with N-Vinylacetamides and Ethyl Vinyl Ether as Acetaldehyde Anion Equivalents in the Synthesis of 9H-Xanthene, 9H-Thioxanthene, and 9,10-Dihydro-9-acridine Carboxaldehydes. J Org Chem 2003; 69:584-6. [PMID: 14725481 DOI: 10.1021/jo0303057] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient synthesis of 9H-xanthene-9-carboxaldehyde (3a), 9H-thioxanthene-9-carboxaldehyde (3b), and 9,10-dihydro-10-methyl-9-acridinecarboxaldehyde (3c) by a novel two-carbon homologation of xanthydrol (1a), thioxanthydrol (1b), and 9,10-dihydro-10-methyl-9-acridinol (1c), respectively, using N-vinylacetamides (2a,b) or ethyl vinyl ether (2c) as acetaldehyde anion equivalents, is described.
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Affiliation(s)
- Mahavir Prashad
- Process Research and Development, Chemical and Analytical Development, Novartis Institute for Biomedical Research, One Health Plaza, East Hanover, New Jersey 07936, USA.
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20
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Quintás D, Garcı́a A, Domı́nguez D. Synthesis of spiro[pyrrolidine or piperidine-3,9′-xanthenes] by anionic cycloacylation of carbamates. Tetrahedron Lett 2003. [DOI: 10.1016/j.tetlet.2003.10.065] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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