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Freeman EE, Jackson R, Luo J, Somwaru R, Sons AA, Bean A, Buckle RN, Herr RJ. A Three-Step Method for the Preparation of N-Substituted 3,4-Dihydroisoquinolin-1(2 H)-ones and Heteroaryl-Fused 3,4-Dihydropyridin-2(1 H)-ones from 2-Bromobenzoate Precursors. J Org Chem 2023; 88:2589-2598. [PMID: 36706424 DOI: 10.1021/acs.joc.2c02670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We demonstrate a general method for the preparation of diverse N-substituted 3,4-dihydroisoquinolin-1(2H)-one compounds through an overall three-step cross-coupling/cyclization/N-deprotection/N-alkylation sequence. In the first step, ethyl 2-bromobenzoates and 2-bromo-1-carboxyethyl heterocycles are cross-coupled with commercially available potassium (2-((tert-butoxycarbonyl)amino)ethyl)trifluoroborate to produce (hetero)aryl-substituted 3-[(N-Boc-2-carboxyethyl)phenyl]ethylamines. In a subsequent two-stage process, these (hetero)arylethylamines undergo base-mediated ring closure followed by N-deprotection and N-alkylation to produce N-substituted 3,4-dihydroisoquinolin-1(2H)-ones and heteroaryl-fused N-benzyl 3,4-dihydropyridin-2(1H)-ones. Mechanistic work was performed to elucidate the order of transformations for the latter two-stage process. The method was also extended to the production of N-benzyl isoindolin-1-one and N-benzyl 2,3,4,5-tetrahydro-1H-benzo[c]azepin-1-one.
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Affiliation(s)
- Emily E Freeman
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Randy Jackson
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Jessica Luo
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Rajen Somwaru
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Alex A Sons
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Andrew Bean
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Ronald N Buckle
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - R Jason Herr
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
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Garzón-Posse F, Quevedo-Acosta Y, Mahecha-Mahecha C, Acosta-Guzmán P. Recent Progress in the Synthesis of Naturally Occurring Siderophores. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901257] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Fabián Garzón-Posse
- Laboratory of Organic Synthesis; Bio and Organocatalysis; Universidad de los Andes; Cra 1 No. 18A-12 Q:305 111711 Bogotá Colombia
| | - Yovanny Quevedo-Acosta
- Laboratory of Organic Synthesis; Bio and Organocatalysis Chemistry Department; Universidad de los Andes; Cra 1 No. 18A-12 Q:305 111711 Bogotá Colombia
- Institute of Chemistry; Bio and Organocatalysis Chemistry Department; State University of Campinas; Rua Monteiro Lobato 270 13083-862 Campinas Brazil
| | - Camilo Mahecha-Mahecha
- Laboratory of Organic Synthesis; Bio and Organocatalysis Chemistry Department; Universidad de los Andes; Cra 1 No. 18A-12 Q:305 111711 Bogotá Colombia
| | - Paola Acosta-Guzmán
- Laboratory of Organic Synthesis; Bio and Organocatalysis Chemistry Department; Universidad de los Andes; Cra 1 No. 18A-12 Q:305 111711 Bogotá Colombia
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Bayer T, Chakrabarti A, Lancelot J, Shaik TB, Hausmann K, Melesina J, Schmidtkunz K, Marek M, Erdmann F, Schmidt M, Robaa D, Romier C, Pierce RJ, Jung M, Sippl W. Synthesis, Crystallization Studies, and in vitro Characterization of Cinnamic Acid Derivatives as SmHDAC8 Inhibitors for the Treatment of Schistosomiasis. ChemMedChem 2018; 13:1517-1529. [PMID: 29806110 DOI: 10.1002/cmdc.201800238] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/24/2018] [Indexed: 12/25/2022]
Abstract
Schistosomiasis is a neglected parasitic disease that affects more than 265 million people worldwide and for which the control strategy relies on mass treatment with only one drug: praziquantel. Based on the 3-chlorobenzothiophene-2-hydroxamic acid J1075, a series of hydroxamic acids with different scaffolds were prepared as potential inhibitors of Schistosoma mansoni histone deacetylase 8 (SmHDAC8). The crystal structures of SmHDAC8 with four inhibitors provided insight into the binding mode and orientation of molecules in the binding pocket as well as the orientation of its flexible amino acid residues. The compounds were evaluated in screens for inhibitory activity against schistosome and human HDACs. The most promising compounds were further investigated for their activity toward the major human HDAC isotypes. The most potent inhibitors were additionally screened for lethality against the schistosome larval stage using a fluorescence-based assay. Two of the compounds showed significant, dose-dependent killing of the schistosome larvae and markedly impaired egg laying of adult worm pairs maintained in culture.
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Affiliation(s)
- Theresa Bayer
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Alokta Chakrabarti
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104, Freiburg, Germany
| | - Julien Lancelot
- University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille, 59000, Lille, France
| | - Tajith B Shaik
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS, INSERM, 67404, Illkirch Cedex, France
| | - Kristin Hausmann
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Jelena Melesina
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Karin Schmidtkunz
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104, Freiburg, Germany
| | - Martin Marek
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS, INSERM, 67404, Illkirch Cedex, France
| | - Frank Erdmann
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Matthias Schmidt
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Dina Robaa
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Christophe Romier
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS, INSERM, 67404, Illkirch Cedex, France
| | - Raymond J Pierce
- University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille, 59000, Lille, France
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104, Freiburg, Germany
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
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Zhu RY, Farmer ME, Chen YQ, Yu JQ. A Simple and Versatile Amide Directing Group for C-H Functionalizations. Angew Chem Int Ed Engl 2016; 55:10578-99. [PMID: 27479708 PMCID: PMC5518755 DOI: 10.1002/anie.201600791] [Citation(s) in RCA: 490] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Indexed: 01/12/2023]
Abstract
Achieving selective C-H activation at a single and strategic site in the presence of multiple C-H bonds can provide a powerful and generally useful retrosynthetic disconnection. In this context, a directing group serves as a compass to guide the transition metal to C-H bonds by using distance and geometry as powerful recognition parameters to distinguish between proximal and distal C-H bonds. However, the installation and removal of directing groups is a practical drawback. To improve the utility of this approach, one can seek solutions in three directions: 1) Simplifying the directing group, 2) using common functional groups or protecting groups as directing groups, and 3) attaching the directing group to substrates via a transient covalent bond to render the directing group catalytic. This Review describes the rational development of an extremely simple and yet broadly applicable directing group for Pd(II) , Rh(III) , and Ru(II) catalysts, namely the N-methoxy amide (CONHOMe) moiety. Through collective efforts in the community, a wide range of C-H activation transformations using this type of simple directing group have been developed.
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Affiliation(s)
- Ru-Yi Zhu
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Marcus E Farmer
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Yan-Qiao Chen
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA.
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Zhu R, Farmer ME, Chen Y, Yu J. Eine einfache und vielseitige dirigierende Amidgruppe zur Funktionalisierung von C‐H‐Bindungen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600791] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ru‐Yi Zhu
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Marcus E. Farmer
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Yan‐Qiao Chen
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Jin‐Quan Yu
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
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Martynaitis V, Steponavičiūtė R, Krikštolaitytė S, Solovjova J, Mangelinckx S, De Kimpe N, Holzer W, Šačkus A. Synthesis and reactions of 1-hydroxy-9,9a-dihydro-1H-imidazo[1,2-a]indol-2-(3H)-ones. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.03.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hogg JH, Ollmann IR, Haeggström JZ, Wetterholm A, Samuelsson B, Wong CH. Amino hydroxamic acids as potent inhibitors of leukotriene A4 hydrolase. Bioorg Med Chem 1995; 3:1405-15. [PMID: 8564408 DOI: 10.1016/0968-0896(95)00128-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Leukotriene A4 hydrolase is a zinc-containing enzyme which catalyzes the hydrolysis of LTA4 to LTB4, a proinflammatory mediator. The enzyme also exhibits an aminopeptidase activity. Due to its biological importance, it is of considerable interest to develop selective inhibitors of this enzyme. The design and synthesis of a number of potent beta-amino hydroxylamine and amino hydroxamic acid inhibitors are described here. It was found that having a free amine was essential for high activity. Hydroxylamines were found to be about an order of magnitude less potent than their analogous hydroxamic acids. Our investigation of amino hydroxamic acids as inhibitors of leukotriene A4 hydrolase has led to the development of hydroxamates 16 and 17, which are among the most potent inhibitors found to date. These, compounds were found to be competitive inhibitors with Ki values of 1.6 nM and 3.4 nM respectively, against the peptidase activity. Inhibitor 16 has an IC50 value of < or = 0.15 microM against the epoxide hydrolase activity and is also potent against the production of LTB4 by isolated polymorphonuclear leukocytes (PMNL) activated with ionophore A23187 (IC50 approximately 0.3 microM).
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Affiliation(s)
- J H Hogg
- Department of Chemistry, Scripps Research Institute, La Jolla, CA 92037, USA
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