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Roscales S, Sánchez F, Csákÿ AG. 1,2-Stereochemical Induction in the Pd II-Catalyzed Conjugate Addition of Boronic Acids. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403488] [Citation(s) in RCA: 2] [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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Risgaard R, Nielsen SD, Hansen KB, Jensen CM, Nielsen B, Traynelis SF, Clausen RP. Development of 2'-substituted (2S,1'R,2'S)-2-(carboxycyclopropyl)glycine analogues as potent N-methyl-d-aspartic acid receptor agonists. J Med Chem 2013; 56:4071-81. [PMID: 23614571 DOI: 10.1021/jm400346a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of 2'-substituted analogues of the selective NMDA receptor ligand (2S,1'R,2'S)-2-(carboxycyclopropyl)glycine ((S)-CCG-IV) have been designed, synthesized, and pharmacologically characterized. The design was based on a docking study hypothesizing that substituents in the 2'-position would protrude into a region where differences among the NMDA receptor GluN2 subunits exist. Various synthetic routes were explored, and two different routes provided a series of alkyl-substituted analogues. Pharmacological characterization revealed that these compounds are NMDA receptor agonists and that potency decreases with increasing size of the alkyl groups. Variations in agonist activity are observed at the different recombinant NMDA receptor subtypes. This study demonstrates that it is possible to introduce substituents in the 2'-position of (S)-CCG-IV while maintaining agonist activity and that variation among NMDA receptor subtypes may be achieved by probing this region of the receptor.
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Affiliation(s)
- Rune Risgaard
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, 2 Universitetsparken, DK-2100 Copenhagen, Denmark
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Camarero C, González-Temprano I, Gómez-SanJuan A, Arrasate S, Lete E, Sotomayor N. Stereocontrolled conjugate additions to dihydroindolizinone systems. Synthesis of enantiopure polysubstituted tetrahydropyrrolo[2,1-a]isoquinolones. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.05.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Michaux J, Niel G, Campagne JM. Stereocontrolled routes to β,β′-disubstituted α-amino acids. Chem Soc Rev 2009; 38:2093-116. [DOI: 10.1039/b812116h] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hili R, Baktharaman S, Yudin AK. Synthesis of Chiral Amines Using α‐Amino Aldehydes. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800604] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ryan Hili
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6
| | - Sivaraj Baktharaman
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6
| | - Andrei K. Yudin
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6
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Kobayashi S, Tsubogo T, Saito S, Yamashita Y. Calcium-Catalyzed Diastereo- and Enantioselective 1,4-Addition of Glycine Derivatives to α,β-Unsaturated Esters. Org Lett 2008; 10:807-9. [DOI: 10.1021/ol702958w] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shū Kobayashi
- Department of Chemistry, School of Science and Graduate School of Pharmaceutical Sciences, The University of Tokyo, The HFRE Division, ERATO, Japan Science Technology Agency (JST), Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tetsu Tsubogo
- Department of Chemistry, School of Science and Graduate School of Pharmaceutical Sciences, The University of Tokyo, The HFRE Division, ERATO, Japan Science Technology Agency (JST), Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Susumu Saito
- Department of Chemistry, School of Science and Graduate School of Pharmaceutical Sciences, The University of Tokyo, The HFRE Division, ERATO, Japan Science Technology Agency (JST), Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yasuhiro Yamashita
- Department of Chemistry, School of Science and Graduate School of Pharmaceutical Sciences, The University of Tokyo, The HFRE Division, ERATO, Japan Science Technology Agency (JST), Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Perni RB, Farmer LJ, Cottrell KM, Court JJ, Courtney LF, Deininger DD, Gates CA, Harbeson SL, Kim JL, Lin C, Lin K, Luong YP, Maxwell JP, Murcko MA, Pitlik J, Rao BG, Schairer WC, Tung RD, Van Drie JH, Wilson K, Thomson JA. Inhibitors of hepatitis C virus NS3.4A protease. Part 3: P2 proline variants. Bioorg Med Chem Lett 2004; 14:1939-42. [PMID: 15050632 DOI: 10.1016/j.bmcl.2004.01.078] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2003] [Accepted: 01/26/2004] [Indexed: 11/27/2022]
Abstract
We recently described the identification of an optimized alpha-ketoamide warhead for our series of HCV NS3.4A inhibitors. We report herein a series of HCV protease inhibitors incorporating 3-alkyl-substituted prolines in P(2). These compounds show exceptional enzymatic and cellular potency given their relatively small size. The marked enhancement of activity of these 3-substituted proline derivatives relative to previously reported 4-hydroxyproline derivatives constitutes additional evidence for the importance of the S(2) binding pocket as the defining pharmacophore for inhibition of the NS3.4A enzyme.
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Affiliation(s)
- Robert B Perni
- Vertex Pharmaceuticals Inc., 130 Waverly Street, Cambridge, MA 02139, USA.
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Flamant-Robin C, Wang Q, Chiaroni A, Sasaki N. An efficient method for the stereoselective synthesis of cis -3-substituted prolines: conformationally constrained α-amino acids. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)01405-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hashimoto K, Matsumoto T, Nakamura K, Ohwada SI, Ohuchi T, Horikawa M, Konno K, Shirahama H. Molecular orbital calculation for the model compounds of kainoid amino acids, agonists of excitatory amino acid receptors. Does the kainoid C4-substituent directly interact with the receptors? Bioorg Med Chem 2002; 10:1373-9. [PMID: 11886801 DOI: 10.1016/s0968-0896(01)00400-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Kainoid amino acids are agonists of the AMPA/kainate receptors and exhibit highly potent neuroexcitatory activity. From the results of extensive structure--activity relationship studies, we previously postulated that the C4-substituent of the kainoid amino acids interacts with an allosteric site of the glutamate receptor with electron-donating character. In order to investigate the mode of action in more detail, molecular orbital calculation for model compounds of the kainoid were performed. The results indicated that the HOMO energy level of the C4-substituent is involved in the potent neuroexcitatory activity, thus supporting our hypothesis.
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Affiliation(s)
- Kimiko Hashimoto
- Department of Chemistry, Faculty of Science, Hokkaido University, 060-0810, Sapporo, Japan.
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Steric constraints against [3,3]-sigmatropic rearrangement of allylic azides. A convenient approach to β-l-4-aminopent-2-enoglyceropyranosides. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0957-4166(01)00450-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Amat M, Pérez M, Llor N, Bosch J, Lago E, Molins E. Conjugate addition of organocuprates to chiral bicyclic delta-lactams. Enantioselective synthesis of cis-3,4-disubstituted and 3,4,5-trisubstituted piperidines. Org Lett 2001; 3:611-4. [PMID: 11178838 DOI: 10.1021/ol007010p] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] Chiral nonracemic bicyclic lactam 3, easily accessible by cyclodehydration of (R)-phenylglycinol and racemic methyl 4-formylhexanoate, was converted to the unsaturated lactams 5, which undergo the stereoselective conjugate addition of lower order cyanocuprates to ultimately lead to enantiopure cis-3,4-disubstituted and 3,4,5-trisubstituted piperidines.
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Affiliation(s)
- M Amat
- Laboratory of Organic Chemistry, Faculty of Pharmacy, University of Barcelona, Spain.
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Reginato G, Mordini A, Degl'Innocenti A, Manganiello S, Capperucci A, Poli G. Stannylcupration of chiral γ-amino acetylenic esters: Stereocontrolled synthesis of 3-tributylstannyl γ-amino (E)-alkenoates a as precursors of 4-stannylated pyrrolinones. Tetrahedron 1998. [DOI: 10.1016/s0040-4020(98)00624-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Collado I, Ezquerra J, Mateo AI, Rubio A. Stereocontrolled Synthesis of 4-Substituted (±)-Kainic Acids. J Org Chem 1998. [DOI: 10.1021/jo972123g] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Iván Collado
- Centro de Investigación Lilly, S. A. Av. de la Industria, 30. 28108-Alcobendas, Madrid, Spain
| | - Jesús Ezquerra
- Centro de Investigación Lilly, S. A. Av. de la Industria, 30. 28108-Alcobendas, Madrid, Spain
| | - Ana I. Mateo
- Centro de Investigación Lilly, S. A. Av. de la Industria, 30. 28108-Alcobendas, Madrid, Spain
| | - Almudena Rubio
- Centro de Investigación Lilly, S. A. Av. de la Industria, 30. 28108-Alcobendas, Madrid, Spain
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Cossy J, Cases M, Pardo DG. An easy access to substituted aminopyranones from L-pyroglutamic acid. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01863-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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