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Zhou W, Lv J, Wang C. Diversity-Oriented Synthesis of Spiro[chromeno[2,3- b]pyridine-3,4'-pyrazole] Derivatives via Pseudo-Three-Component Reactions. J Org Chem 2024; 89:10371-10378. [PMID: 38978479 DOI: 10.1021/acs.joc.4c00959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
A novel one-pot pseudo-three-component reaction of 2-amino-4H-chromen-4-ones with 4-benzylidene-5-alkyl-2-aryl-2,4-dihydro-3H-pyrazol-3-ones was investigated for the synthesis of the spiro[chromeno[2,3-b]pyridine-3,4'-pyrazole] derivatives. This procedure involved Michael addition, elimination, and hetero-Diels-Alder sequences, affording a series of spiropyrazolone-chromeno[2,3-b]pyridines in good yields that possessed cis relationships between two aryl groups and the carbonyl of the pyrazolone unit.
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Affiliation(s)
- Wenyan Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Jiaman Lv
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
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2
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Pedroso de Lima F, Costa M, Sousa A, Proença MF. The Chromenopyridine Scaffold: A Privileged Platform in Drug Design. Molecules 2024; 29:3004. [PMID: 38998955 PMCID: PMC11243271 DOI: 10.3390/molecules29133004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/07/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
The chromenopyridine scaffold represents an important class of heterocyclic compounds exhibiting a broad spectrum of biological properties. This review describes novel and efficient procedures for the synthesis of this scaffold. Herein, several methods were detailed and grouped according to their starting material (e.g., salicylaldehydes, chromones, chromanones and coumarins) and respective biological activity, when reported. This review highlights the potential of the reported synthetic strategies for preparing chromenopyridine derivatives with promising biological activity, paving the way for further developments in drug discovery.
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Affiliation(s)
- Fábio Pedroso de Lima
- Chemistry Centre, School of Sciences, University of Minho, Gualtar Campus, 4715-303 Braga, Portugal
- Centre for Textile Science and Technology (2C2T), University of Minho, Azurém Campus, 4800-058 Guimarães, Portugal
| | - Marta Costa
- Life and Health Sciences Research Institute (ICVS), University of Minho, Gualtar Campus, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga/Guimarães, Portugal
| | - Ana Sousa
- Chemistry Centre, School of Sciences, University of Minho, Gualtar Campus, 4715-303 Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), University of Minho, Gualtar Campus, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga/Guimarães, Portugal
| | - Maria Fernanda Proença
- Chemistry Centre, School of Sciences, University of Minho, Gualtar Campus, 4715-303 Braga, Portugal
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3
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Lv J, Zhou W, Gan J, Wang C. Synthesis of 2 H-Chromeno[2,3- b]tetrahydropyridine Frameworks through Cs 2CO 3-Promoted Annulation of 2-Amino-4 H-chromen-4-ones and 4-Benzylideneoxazol-5(4 H)-ones. J Org Chem 2024; 89:5181-5188. [PMID: 38517737 DOI: 10.1021/acs.joc.4c00100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2024]
Abstract
This innovative reaction involved the [3+3] annulation of 2-amino-4H-chromen-4-ones and 4-benzylideneoxazol-5(4H)-ones. The process provided quick and easy access to a broad range of structurally diverse and highly functionalized 1,3,4,5-tetrahydro-2H-chromeno[2,3-b]pyridines in moderate to good yields, which possess trans-form C3 and C4 substituents.
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Affiliation(s)
- Jiaman Lv
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Wenyan Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Jianbo Gan
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
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4
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Huang G, Hucek D, Cierpicki T, Grembecka J. Applications of oxetanes in drug discovery and medicinal chemistry. Eur J Med Chem 2023; 261:115802. [PMID: 37713805 DOI: 10.1016/j.ejmech.2023.115802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/17/2023]
Abstract
The compact and versatile oxetane motifs have gained significant attention in drug discovery and medicinal chemistry campaigns. This review presents an overview of the diverse applications of oxetanes in clinical and preclinical drug candidates targeting various human diseases, including cancer, viral infections, autoimmune disorders, neurodegenerative conditions, metabolic disorders, and others. Special attention is given to biologically active oxetane-containing compounds and their disease-related targets, such as kinases, epigenetic and non-epigenetic enzymes, and receptors. The review also details the effect of the oxetane motif on important properties, including aqueous solubility, lipophilicity, pKa, P-glycoprotein (P-gp) efflux, metabolic stability, conformational preferences, toxicity profiles (e.g., cytochrome P450 (CYP) suppression and human ether-a-go-go related gene (hERG) inhibition), pharmacokinetic (PK) properties, potency, and target selectivity. We anticipate that this work will provide valuable insights that can drive future discoveries of novel bioactive oxetane-containing small molecules, enabling their effective application in combating a wide range of human diseases.
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Affiliation(s)
- Guang Huang
- Department of Pathology, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Devon Hucek
- Department of Pathology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Tomasz Cierpicki
- Department of Pathology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Jolanta Grembecka
- Department of Pathology, University of Michigan, Ann Arbor, MI, 48109, USA
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5
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Banda BP, Medishetti N, Nanubolu JB, Atmakur K. One-pot domino synthesis of five- and six-membered fused dihydropyridines promoted by PPh 3-NBS in aqueous medium. Org Biomol Chem 2023; 21:4434-4439. [PMID: 37183547 DOI: 10.1039/d3ob00472d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A facile one-pot synthesis of five- and six-membered fused dihydropyridines such as chromenodihydropyridines, pyrazolodihydropyridines and isoxazolopyridines was accomplished for the first time by employing PPh3-NBS via a formal [3 + 2 + 1] cycloaddition of 1,3-bisnucleophiles (i.e., 2-aminochromone, 4-aminochromone, 5-aminopyrazole and 5-aminoisoxazole), β-enaminones and aldehydes in aqueous medium. The present approach involves a Michael type addition followed by intramolecular cyclization leading to the formation of two new C-C bonds and one C-N bond. High compatibility and excellent yields are the advantages of this protocol.
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Affiliation(s)
- Bhanu Prasad Banda
- Fluoro & Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500 007, India.
| | - Nagaraju Medishetti
- Fluoro & Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500 007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Jagadeesh Babu Nanubolu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
- Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
| | - Krishnaiah Atmakur
- Fluoro & Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500 007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
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6
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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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7
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Sheng C, Ling Z, Ahmad T, Xie F, Zhang W. Copper‐Catalyzed Regioselective [3+3] Annulations of Alkynyl Ketimines with
α
‐Cyano Ketones: the Synthesis of Polysubstituted 4
H
‐Pyran Derivatives with a CF
3
‐Containing Quaternary Center. Chemistry 2022; 28:e202200128. [DOI: 10.1002/chem.202200128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Indexed: 12/17/2022]
Affiliation(s)
- Cheng Sheng
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Zheng Ling
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Tanveer Ahmad
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Fang Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
- College of Chemistry Zhengzhou University Zhengzhou 450052 China
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8
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Zhao AX, Horsfall LE, Hulme AN. New Methods for the Synthesis of Spirocyclic Cephalosporin Analogues. Molecules 2021; 26:6035. [PMID: 34641579 PMCID: PMC8512572 DOI: 10.3390/molecules26196035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 11/30/2022] Open
Abstract
Spiro compounds provide attractive targets in drug discovery due to their inherent three-dimensional structures, which enhance protein interactions, aid solubility and facilitate molecular modelling. However, synthetic methodology for the spiro-functionalisation of important classes of penicillin and cephalosporin β-lactam antibiotics is comparatively limited. We report a novel method for the generation of spiro-cephalosporin compounds through a Michael-type addition to the dihydrothiazine ring. Coupling of a range of catechols is achieved under mildly basic conditions (K2CO3, DMF), giving the stereoselective formation of spiro-cephalosporins (d.r. 14:1 to 8:1) in moderate to good yields (28-65%).
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Affiliation(s)
- Alan X. Zhao
- EaStChem School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, UK;
| | - Louise E. Horsfall
- Institute of Quantitative Biology, Biochemistry, and Biotechnology, School of Biological Science, The University of Edinburgh, Roger Land Building, Alexander Crum Brown Road, Edinburgh EH9 3FF, UK;
| | - Alison N. Hulme
- EaStChem School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, UK;
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9
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Cai H, Datta Khanal H, Rok Lee Y. Iodine‐Catalyzed Annulations of 2‐Amino Carbonyls for Diverse 1‐Azaxanthones, Quinolines, and Naphthyridines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hongyun Cai
- School of Chemical Engineering Yeungnam University Gyeongsan 38541 Republic of Korea
| | - Hari Datta Khanal
- School of Chemical Engineering Yeungnam University Gyeongsan 38541 Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering Yeungnam University Gyeongsan 38541 Republic of Korea
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10
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11
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Born JR, Chenniappan VK, Davis DP, Dahlin JL, Marugan JJ, Patnaik S. The Impact of Assay Design on Medicinal Chemistry: Case Studies. SLAS DISCOVERY 2021; 26:1243-1255. [PMID: 34225522 DOI: 10.1177/24725552211026238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
GRAPHICAL ABSTRACT
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Affiliation(s)
- Joshua R Born
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Vinoth Kumar Chenniappan
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Danielle P Davis
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Jayme L Dahlin
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Juan J Marugan
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Samarjit Patnaik
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
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12
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Sharma P, Ranga Prabhath MR, Wong D, Ampem-Lassen MA, Bhat SV, Williams L, Carvalho TG. Synthesis of Biologically Active Heterospirocycles through Iterative 1,3-Dipolar Cycloaddition Pathways. J Org Chem 2021; 86:1223-1230. [PMID: 33316159 DOI: 10.1021/acs.joc.0c02424] [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
We demonstrate the novel spiroannulation of exo-imines with 1,3-dipoles, for the first time, leading to 3D spirocycles with a secondary amine (NH) in the spiro-ring. The synthetic method described herein allows access to these previously unexplored heterospirocyclic cores that have application in the discovery of functional molecules for medicinal and materials science. This was demonstrated by discovering an unprecedented class of heterospirocycles with antimalarial activity against the human protozoan P. falciparum.
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Affiliation(s)
- Pallavi Sharma
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia.,School of Chemistry, Joseph Bank Laboratory, University of Lincoln, Lincoln LN6 7TS, United Kingdom
| | - M R Ranga Prabhath
- School of Chemistry, Joseph Bank Laboratory, University of Lincoln, Lincoln LN6 7TS, United Kingdom
| | - Derek Wong
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Maame Adjoa Ampem-Lassen
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Shreesha V Bhat
- School of Chemistry, Joseph Bank Laboratory, University of Lincoln, Lincoln LN6 7TS, United Kingdom
| | - Luke Williams
- School of Chemistry, Joseph Bank Laboratory, University of Lincoln, Lincoln LN6 7TS, United Kingdom
| | - Teresa G Carvalho
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, Victoria 3086, Australia
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13
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Hrabinova M, Pejchal J, Kucera T, Jun D, Schmidt M, Soukup O. Is It the Twilight of BACE1 Inhibitors? Curr Neuropharmacol 2021; 19:61-77. [PMID: 32359337 PMCID: PMC7903497 DOI: 10.2174/1570159x18666200503023323] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/23/2020] [Accepted: 04/30/2020] [Indexed: 12/13/2022] Open
Abstract
β-secretase (BACE1) has been regarded as a prime target for the development of amyloid beta (Aβ) lowering drugs in the therapy of Alzheimer´s disease (AD). Although the enzyme was discovered in 1991 and helped to formulate the Aβ hypothesis as one of the very important features of AD etiopathogenesis, progress in AD treatment utilizing BACE1 inhibitors has remained limited. Moreover, in the last years, major pharmaceutical companies have discontinued clinical trials of five BACE1 inhibitors that had been strongly perceived as prospective. In our review, the Aβ hypothesis, the enzyme, its functions, and selected substrates are described. BACE1 inhibitors are classified into four generations. Those that underwent clinical trials displayed adverse effects, including weight loss, skin rashes, worsening of neuropsychiatric symptoms, etc. Some inhibitors could not establish a statistically significant risk-benefit ratio, or even scored worse than placebo. We still believe that drugs targeting BACE1 may still hide some potential, but a different approach to BACE1 inhibition or a shift of focus to modulation of its trafficking and/or post-translational modification should now be followed.
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Affiliation(s)
| | - Jaroslav Pejchal
- Address correspondence to this author at the Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence in Brno, Hradec Kralove, Czech Republic;E-mail:
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14
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Rombouts F, Kusakabe KI, Hsiao CC, Gijsen HJM. Small-molecule BACE1 inhibitors: a patent literature review (2011 to 2020). Expert Opin Ther Pat 2020; 31:25-52. [PMID: 33006491 DOI: 10.1080/13543776.2021.1832463] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Inhibition of β-site amyloid precursor protein cleaving enzyme 1 (BACE1) has been extensively pursued as potential disease-modifying treatment for Alzheimer's disease (AD). Clinical failures with BACE inhibitors have progressively raised the bar forever cleaner candidates with reduced cardiovascular liability, toxicity risk, and increased selectivity over cathepsin D (CatD) and BACE2. AREAS COVERED This review provides an overview of patented BACE1 inhibitors between 2011 and 2020 per pharmaceutical company or research group and highlights the progress that was made in dialing out toxicity liabilities. EXPERT OPINION Despite an increasingly crowded IP situation, significant progress was made using highly complex chemistry in avoiding toxicity liabilities, with BACE1/BACE2 selectivity being the most remarkable achievement. However, clinical trial data suggest on-target toxicity is likely a contributing factor, which implies the only potential future of BACE1 inhibitors lies in careful titration of highly selective compounds in early populations where the amyloid burden is still minimal as prophylactic therapy, or as an affordable oral maintenance therapy following amyloid-clearing therapies.
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Affiliation(s)
- Frederik Rombouts
- Medicinal Chemistry, Janssen Research & Development , Beerse, Belgium
| | - Ken-Ichi Kusakabe
- Laboratory for Medicinal Chemistry Research, Shionogi & Co., Ltd ., Toyonaka, Osaka, Japan
| | - Chien-Chi Hsiao
- Medicinal Chemistry, Janssen Research & Development , Beerse, Belgium
| | - Harrie J M Gijsen
- Medicinal Chemistry, Janssen Research & Development , Beerse, Belgium
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15
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Luo N, Wang S, Zhang Y, Xin J, Wang C. DBU-Promoted Cascade Selective Nucleophilic Addition/C–C Bond Cleavage/Hetero-Diels–Alder Reactions of 2-Amino-4H-chromen-4-ones with β-Nitrostyrenes and/or Aryl Aldehydes: Access to 5H-Chromeno[2,3-b]pyridin-5-ones. J Org Chem 2020; 85:14219-14228. [DOI: 10.1021/acs.joc.0c01993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Naili Luo
- School of Chemistry and Chemical Engineering, Yangzhou University,180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Shan Wang
- School of Chemistry and Chemical Engineering, Yangzhou University,180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Yue Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University,180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Junhu Xin
- School of Chemistry and Chemical Engineering, Yangzhou University,180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering, Yangzhou University,180 Siwangting Street, Yangzhou 225002, P. R. China
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16
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Frohn M, Liu L, Siegmund AC, Qian W, Amegadzie A, Chen N, Tan H, Hickman D, Wood S, Wen PH, Bartberger MD, Whittington DA, Allen JR, Bourbeau MP. The development of a structurally distinct series of BACE1 inhibitors via the (Z)-fluoro-olefin amide bioisosteric replacement. Bioorg Med Chem Lett 2020; 30:127240. [DOI: 10.1016/j.bmcl.2020.127240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/24/2020] [Accepted: 05/01/2020] [Indexed: 01/02/2023]
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17
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Rankan C, Santhi Marimuthu P, Tiwari KN. A quick and regioselective access of spirooxindole‐oxazoline by reaction of isatin and isocyanoacetate “on water”. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chandran Rankan
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER), Raebareli, Transit Campus Lucknow Uttar Pradesh India
| | - Prabhakaran Santhi Marimuthu
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER), Raebareli, Transit Campus Lucknow Uttar Pradesh India
| | - Keshri Nath Tiwari
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER), Raebareli, Transit Campus Lucknow Uttar Pradesh India
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18
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Lai Y, Luo XY, Guo HJ, Wang SY, Xiong J, Yang SX, Li LM, Zou Q, Mo CF, Wang YT, Liu Y. PO-322 exerts potent immunosuppressive effects in vitro and in vivo by selectively inhibiting SGK1 activity. Br J Pharmacol 2020; 177:1666-1676. [PMID: 31724152 DOI: 10.1111/bph.14926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 09/14/2019] [Accepted: 10/29/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND AND PURPOSE Immunosuppressive drugs have shown great promise in treating autoimmune diseases in recent years. A series of novel oxazole derivatives were screened for their immunosuppressive activity. PO-322 [1H-indole-2,3-dione 3-(1,3-benzoxazol-2-ylhydrazone)] was identified as the most effective of these compounds. Here, we have investigated the mechanism(s) underlying the inhibition of T-cell proliferation in vitro by PO-322, as well as its effects on the delayed-type hypersensitivity (DTH) response and imiquimod-induced dermatitis in vivo. EXPERIMENTAL APPROACH T-cell proliferation and apoptosis were analysed with flow cytometry. Cell viability was assessed with a CCK-8 assay. Protein kinase activity was assessed by SelectScreen Kinase Profiling Services. The phosphorylation of signal-regulated molecules was measured by Western blot. Cytokine levels were determined by elisa. The effect of PO-322 on DTH and imiquimod-induced dermatitis was evaluated in BALB/c mice. KEY RESULTS PO-322 inhibited human T-cell proliferation with anti-CD3/anti-CD28 mAbs or alloantigen without significant cytotoxicity. Importantly, PO-322 was a selective inhibitor of the serum- and glucocorticoid-regulated kinase 1 (SGK1) and decreased NDRG1 phosphorylation but not p70S6K, STAT5, Akt, or ERK1/2 phosphorylation. Furthermore, PO-322 inhibited IFN-γ, IL-6, and IL-17 expression but not IL-10 expression. Finally, treatment with PO-322 was safe and effective for ameliorating the DTH response and imiquimod-induced dermatitis in mice. CONCLUSIONS AND IMPLICATIONS PO-322 exerted immunosuppressive activity in vitro and in vivo by selectively inhibiting SGK1 activity. PO-322 represents a potential lead compound for the design and development of new drugs for the treatment of autoimmune diseases.
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Affiliation(s)
- Yi Lai
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Xing-Yan Luo
- Research Center, Chengdu Medical College, Chengdu, China
| | - Hui-Jie Guo
- Research Center, Chengdu Medical College, Chengdu, China
| | - Si-Yu Wang
- Research Center, Chengdu Medical College, Chengdu, China
| | - Jing Xiong
- Research Center, Chengdu Medical College, Chengdu, China
| | - Shu-Xia Yang
- Research Center, Chengdu Medical College, Chengdu, China
| | - Li-Mei Li
- Research Center, Chengdu Medical College, Chengdu, China
| | - Qiang Zou
- Research Center, Chengdu Medical College, Chengdu, China
| | - Chun-Fen Mo
- Research Center, Chengdu Medical College, Chengdu, China
| | - Yan-Tang Wang
- Research Center, Chengdu Medical College, Chengdu, China.,Development and Regeneration Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, China
| | - Yang Liu
- Research Center, Chengdu Medical College, Chengdu, China.,Development and Regeneration Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, China
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19
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Iraji A, Khoshneviszadeh M, Firuzi O, Khoshneviszadeh M, Edraki N. Novel small molecule therapeutic agents for Alzheimer disease: Focusing on BACE1 and multi-target directed ligands. Bioorg Chem 2020; 97:103649. [PMID: 32101780 DOI: 10.1016/j.bioorg.2020.103649] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 01/05/2020] [Accepted: 02/03/2020] [Indexed: 12/17/2022]
Abstract
Alzheimer's Disease (AD) is a progressive neurodegenerative disorder that effects 50 million people worldwide. In this review, AD pathology and the development of novel therapeutic agents targeting AD were fully discussed. In particular, common approaches to prevent Aβ production and/or accumulation in the brain including α-secretase activators, specific γ-secretase modulators and small molecules BACE1 inhibitors were reviewed. Additionally, natural-origin bioactive compounds that provide AD therapeutic advances have been introduced. Considering AD is a multifactorial disease, the therapeutic potential of diverse multi target-directed ligands (MTDLs) that combine the efficacy of cholinesterase (ChE) inhibitors, MAO (monoamine oxidase) inhibitors, BACE1 inhibitors, phosphodiesterase 4D (PDE4D) inhibitors, for the treatment of AD are also reviewed. This article also highlights descriptions on the regulator of serotonin receptor (5-HT), metal chelators, anti-aggregants, antioxidants and neuroprotective agents targeting AD. Finally, current computational methods for evaluating the structure-activity relationships (SAR) and virtual screening (VS) of AD drugs are discussed and evaluated.
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Affiliation(s)
- Aida Iraji
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahsima Khoshneviszadeh
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Omidreza Firuzi
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehdi Khoshneviszadeh
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medicinal Chemistry, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Najmeh Edraki
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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20
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Pettus LH, Bourbeau MP, Bradley J, Bartberger MD, Chen K, Hickman D, Johnson M, Liu Q, Manning JR, Nanez A, Siegmund AC, Wen PH, Whittington DA, Allen JR, Wood S. Discovery of AM-6494: A Potent and Orally Efficacious β-Site Amyloid Precursor Protein Cleaving Enzyme 1 (BACE1) Inhibitor with in Vivo Selectivity over BACE2. J Med Chem 2019; 63:2263-2281. [DOI: 10.1021/acs.jmedchem.9b01034] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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Wu H, Liu Y, He MX, Wen H, Cao W, Chen P, Tang Y. Preparation of isoquinazolines via metal-free [4 + 2] cycloaddition of ynamides with nitriles. Org Biomol Chem 2019; 17:8408-8416. [PMID: 31478045 DOI: 10.1039/c9ob01395d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TfOH-mediated [4 + 2] cycloaddition of ynamides with nitriles to construct 1,2-dihydroquinazolines is realized by a direct reaction in moderate to excellent yields (up to 93%) in a stereospecific manner. A rapid and efficient strategy has been employed for the syntheses of alkyl-substituted 1,2-dihydroquinazoline derivatives, and it exhibits good functional group tolerance, has a short reaction time, shows excellent diastereoselectivity, and is a simple and high-yielding reaction.
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Affiliation(s)
- Hao Wu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao, 266003, P. R. China.
| | - Yu Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao, 266003, P. R. China.
| | - Ming-Xing He
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao, 266003, P. R. China.
| | - Hao Wen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao, 266003, P. R. China.
| | - Wei Cao
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao, 266003, P. R. China.
| | - Ping Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao, 266003, P. R. China.
| | - Yu Tang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao, 266003, P. R. China. and Laboratory for Marine Drugs and Bioproducts Qingdao National Laboratory for Marine Science and Technology Qingdao, 266237, P. R. China
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22
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Kuo YC, Rajesh R. Challenges in the treatment of Alzheimer’s disease: recent progress and treatment strategies of pharmaceuticals targeting notable pathological factors. Expert Rev Neurother 2019; 19:623-652. [DOI: 10.1080/14737175.2019.1621750] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yung-Chih Kuo
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi, Taiwan, Republic of China
| | - Rajendiran Rajesh
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi, Taiwan, Republic of China
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23
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Fujimoto K, Matsuoka E, Asada N, Tadano G, Yamamoto T, Nakahara K, Fuchino K, Ito H, Kanegawa N, Moechars D, Gijsen HJM, Kusakabe KI. Structure-Based Design of Selective β-Site Amyloid Precursor Protein Cleaving Enzyme 1 (BACE1) Inhibitors: Targeting the Flap to Gain Selectivity over BACE2. J Med Chem 2019; 62:5080-5095. [DOI: 10.1021/acs.jmedchem.9b00309] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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24
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Synthesis and evaluation of tetrahydroisoquinoline-benzimidazole hybrids as multifunctional agents for the treatment of Alzheimer's disease. Eur J Med Chem 2019; 167:133-145. [DOI: 10.1016/j.ejmech.2019.02.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/23/2019] [Accepted: 02/03/2019] [Indexed: 01/06/2023]
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25
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Luo XY, Zhou H, Wang SY, Xiong J, Mo CF, Guo HJ, Wang YT, Yang SX, Li LM, Zou Q, Liu Y. A benzoxazole derivative PO-296 inhibits T lymphocyte proliferation by the JAK3/STAT5 signal pathway. J Cell Biochem 2018; 120:9193-9202. [PMID: 30506723 DOI: 10.1002/jcb.28195] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 11/12/2018] [Indexed: 01/01/2023]
Abstract
Immunosuppressants have shown striking achievements in treating autoimmune diseases in recent years. It is urgent to develop more immunosuppressants to provide more options for patients. PO-296 [2-(6-chlorobenzo[d]oxazol-2-yl)-4,5,6,7-tetrahydro-2H-indazol-3-ol] was identified as a novel benzoxazole derivative. We observed that it exhibits an obvious immunosuppressive activity to T lymphocytes. PO-296 significantly inhibited the proliferation of activated human T lymphocyte without cytotoxicity. Moreover, PO-296 did not affect the expression of cluster of differentiation (CD)-25 or CD69 but induced T lymphocyte cycle arrest in the G0/G1 phase. Furthermore, PO-296 inhibited interleukin (IL)-6, IL-17, and interferon gamma expression but had no effect on IL-2, IL-4, or IL-10. Yet, importantly, PO-296 inhibited the phosphorylation of signal transducer and activator of transcription 5 (STAT5), increased the phosphorylation of p70S6K, but did not affect the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt)/mitogen-activated protein kinase pathway. In conclusion, these findings indicate that PO-296 inhibits human activated T-lymphocyte proliferation by affecting the janus kinase 3 (JAK3)/STAT5 pathway. PO-296 possesses a potential lead compound for the design and development of new immunosuppressants for the treatment of autoimmune diseases.
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Affiliation(s)
- Xing-Yan Luo
- Basic Medical College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.,Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China
| | - Hong Zhou
- Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China.,Development of Radiology, The Second People's Hospital of Shanwei City, Guangzhou, Shanwei, China
| | - Si-Yu Wang
- Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China
| | - Jing Xiong
- Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China
| | - Chun-Fen Mo
- Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China
| | - Hui-Jie Guo
- Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China
| | - Yan-Tang Wang
- Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China
| | - Shu-Xia Yang
- Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China
| | - Li-Mei Li
- Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China
| | - Qiang Zou
- Basic Medical College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.,Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China
| | - Yang Liu
- Center of Science and Research, Chengdu Medical College, Chengdu, Sichuan, China.,Development and Regeneration Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, Sichuan, China
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26
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Ponduri R, Kumar P, Vadali LRAO, Modugu NR. Water‐PEG‐400 Mediated an Efficient One‐Pot Eco‐Friendly Synthesis of Functionalized Isoxazole Substituted Chromeno[2, 3‐
b
]pyridine‐3‐carboxylate Derivatives. ChemistrySelect 2018. [DOI: 10.1002/slct.201801089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rajasekhar Ponduri
- Mylan Laboratories Limited, Bollaram, Jinnaram (Mandal), Medak, (Dist), Hyderabad, Telangana State India
- JNTU−H College of Engineering, CCST, IST, Kukatpally Hyderabad-500085, Telangana State India
| | - Pramod Kumar
- JNTU−H College of Engineering, CCST, IST, Kukatpally Hyderabad-500085, Telangana State India
| | - Lakshmana RAO Vadali
- Mylan Laboratories Limited, Bollaram, Jinnaram (Mandal), Medak, (Dist), Hyderabad, Telangana State India
| | - Nagi Reddy Modugu
- Department of Organic Synthesis and Process Chemistry (CSIR)Indian Institute of Chemical Technology Uppal Road, Tarnaka, Hyderabad 500007, Telangana India
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27
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Coimbra JRM, Marques DFF, Baptista SJ, Pereira CMF, Moreira PI, Dinis TCP, Santos AE, Salvador JAR. Highlights in BACE1 Inhibitors for Alzheimer's Disease Treatment. Front Chem 2018; 6:178. [PMID: 29881722 PMCID: PMC5977085 DOI: 10.3389/fchem.2018.00178] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/04/2018] [Indexed: 12/22/2022] Open
Abstract
Alzheimer's disease (AD) is a severe neurodegenerative disorder and the most common type of dementia in the elderly. The clinical symptoms of AD include a progressive loss of memory and impairment of cognitive functions interfering with daily life activities. The main neuropathological features consist in extracellular amyloid-β (Aβ) plaque deposition and intracellular Neurofibrillary tangles (NFTs) of hyperphosphorylated Tau. Understanding the pathophysiological mechanisms that underlie neurodegeneration in AD is essential for rational design of neuroprotective agents able to prevent disease progression. According to the "Amyloid Cascade Hypothesis" the critical molecular event in the pathogenesis of AD is the accumulation of Aβ neurotoxic oligomers. Since the proteolytic processing of Amyloid Precursor Protein (APP) by β-secretase (beta-site APP cleaving enzyme 1, BACE1) is the rate-limiting step in the production of Aβ, this enzyme is considered a major therapeutic target and BACE1 inhibitors have the potential to be disease-modifying drugs for AD treatment. Therefore, intensive efforts to discover and develop inhibitors that can reach the brain and effectively inhibit BACE1 have been pursued by several groups worldwide. The aim of this review is to highlight the progress in the discovery of potent and selective small molecule BACE1 inhibitors over the past decade.
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Affiliation(s)
- Judite R. M. Coimbra
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of CoimbraCoimbra, Portugal
- Center for Neuroscience and Cell Biology, University of CoimbraCoimbra, Portugal
| | - Daniela F. F. Marques
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of CoimbraCoimbra, Portugal
- Center for Neuroscience and Cell Biology, University of CoimbraCoimbra, Portugal
| | - Salete J. Baptista
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of CoimbraCoimbra, Portugal
- Center for Neuroscience and Cell Biology, University of CoimbraCoimbra, Portugal
- Chem4Pharma, Edifício IPN IncubadoraCoimbra, Portugal
| | - Cláudia M. F. Pereira
- Center for Neuroscience and Cell Biology, University of CoimbraCoimbra, Portugal
- Faculty of Medicine, University of CoimbraCoimbra, Portugal
| | - Paula I. Moreira
- Center for Neuroscience and Cell Biology, University of CoimbraCoimbra, Portugal
- Laboratory of Physiology, Faculty of Medicine, University of CoimbraCoimbra, Portugal
| | - Teresa C. P. Dinis
- Center for Neuroscience and Cell Biology, University of CoimbraCoimbra, Portugal
- Laboratory of Biochemistry, Faculty of Pharmacy, University of CoimbraCoimbra, Portugal
| | - Armanda E. Santos
- Center for Neuroscience and Cell Biology, University of CoimbraCoimbra, Portugal
- Laboratory of Biochemistry, Faculty of Pharmacy, University of CoimbraCoimbra, Portugal
| | - Jorge A. R. Salvador
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of CoimbraCoimbra, Portugal
- Center for Neuroscience and Cell Biology, University of CoimbraCoimbra, Portugal
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28
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Nakahara K, Fuchino K, Komano K, Asada N, Tadano G, Hasegawa T, Yamamoto T, Sako Y, Ogawa M, Unemura C, Hosono M, Ito H, Sakaguchi G, Ando S, Ohnishi S, Kido Y, Fukushima T, Dhuyvetter D, Borghys H, Gijsen HJM, Yamano Y, Iso Y, Kusakabe KI. Discovery of Potent and Centrally Active 6-Substituted 5-Fluoro-1,3-dihydro-oxazine β-Secretase (BACE1) Inhibitors via Active Conformation Stabilization. J Med Chem 2018; 61:5525-5546. [DOI: 10.1021/acs.jmedchem.8b00011] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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29
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Fuchino K, Mitsuoka Y, Masui M, Kurose N, Yoshida S, Komano K, Yamamoto T, Ogawa M, Unemura C, Hosono M, Ito H, Sakaguchi G, Ando S, Ohnishi S, Kido Y, Fukushima T, Miyajima H, Hiroyama S, Koyabu K, Dhuyvetter D, Borghys H, Gijsen HJM, Yamano Y, Iso Y, Kusakabe KI. Rational Design of Novel 1,3-Oxazine Based β-Secretase (BACE1) Inhibitors: Incorporation of a Double Bond To Reduce P-gp Efflux Leading to Robust Aβ Reduction in the Brain. J Med Chem 2018; 61:5122-5137. [DOI: 10.1021/acs.jmedchem.8b00002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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30
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Kumar RS, Antonisamy P, Almansour AI, Arumugam N, Periyasami G, Altaf M, Kim HR, Kwon KB. Functionalized spirooxindole-indolizine hybrids: Stereoselective green synthesis and evaluation of anti-inflammatory effect involving TNF-α and nitrite inhibition. Eur J Med Chem 2018; 152:417-423. [DOI: 10.1016/j.ejmech.2018.04.060] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 04/29/2018] [Accepted: 04/29/2018] [Indexed: 11/25/2022]
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31
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Diastereoselective synthesis of fused cyclopropyl-3-amino-2,4-oxazine β-amyloid cleaving enzyme (BACE) inhibitors and their biological evaluation. Bioorg Med Chem Lett 2018; 28:1111-1115. [DOI: 10.1016/j.bmcl.2018.01.056] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 01/24/2018] [Accepted: 01/26/2018] [Indexed: 11/19/2022]
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32
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Proton transfer process in synthesis of 3-acetyl-4-(substituted ethylenyl)coumarins and chromeno[3,4-c]pyridines. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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33
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Graham SE, Smith RD, Carlson HA. Predicting Displaceable Water Sites Using Mixed-Solvent Molecular Dynamics. J Chem Inf Model 2018; 58:305-314. [PMID: 29286658 PMCID: PMC6190669 DOI: 10.1021/acs.jcim.7b00268] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Water molecules are an important factor in protein-ligand binding. Upon binding of a ligand with a protein's surface, waters can either be displaced by the ligand or may be conserved and possibly bridge interactions between the protein and ligand. Depending on the specific interactions made by the ligand, displacing waters can yield a gain in binding affinity. The extent to which binding affinity may increase is difficult to predict, as the favorable displacement of a water molecule is dependent on the site-specific interactions made by the water and the potential ligand. Several methods have been developed to predict the location of water sites on a protein's surface, but the majority of methods are not able to take into account both protein dynamics and the interactions made by specific functional groups. Mixed-solvent molecular dynamics (MixMD) is a cosolvent simulation technique that explicitly accounts for the interaction of both water and small molecule probes with a protein's surface, allowing for their direct competition. This method has previously been shown to identify both active and allosteric sites on a protein's surface. Using a test set of eight systems, we have developed a method using MixMD to identify conserved and displaceable water sites. Conserved sites can be determined by an occupancy-based metric to identify sites which are consistently occupied by water even in the presence of probe molecules. Conversely, displaceable water sites can be found by considering the sites which preferentially bind probe molecules. Furthermore, the inclusion of six probe types allows the MixMD method to predict which functional groups are capable of displacing which water sites. The MixMD method consistently identifies sites which are likely to be nondisplaceable and predicts the favorable displacement of water sites that are known to be displaced upon ligand binding.
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Affiliation(s)
- Sarah E. Graham
- Department of Biophysics, College of Pharmacy, University of Michigan, 428 Church St., Ann Arbor, Michigan, 48109-1065
| | - Richard D. Smith
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church St., Ann Arbor, Michigan, 48109-1065
| | - Heather A. Carlson
- Department of Biophysics, College of Pharmacy, University of Michigan, 428 Church St., Ann Arbor, Michigan, 48109-1065
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church St., Ann Arbor, Michigan, 48109-1065
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34
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Chavan SS, Rupanawar BD, Kamble RB, Shelke AM, Suryavanshi G. Metal-free annulation of β-acylamino ketones: facile access to spirooxazolines and oxazolines via oxidative C–O bond formation. Org Chem Front 2018. [DOI: 10.1039/c7qo00783c] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal-free annulation reaction of β-acylamino ketone derivatives has been reported for the synthesis of a group of functionalized spirooxazolines and oxazolines in good to excellent yields.
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Affiliation(s)
- Santosh S. Chavan
- Chemical Engineering & Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Bapurao D. Rupanawar
- Chemical Engineering & Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Rohit B. Kamble
- Chemical Engineering & Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Anil M. Shelke
- Chemical Engineering & Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Gurunath Suryavanshi
- Chemical Engineering & Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
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35
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Bakthadoss M, Meegada SK, Surendar M. Triple domino reaction for the synthesis of pyrazole/indoline linked chromenes. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.12.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Prati F, Bottegoni G, Bolognesi ML, Cavalli A. BACE-1 Inhibitors: From Recent Single-Target Molecules to Multitarget Compounds for Alzheimer’s Disease. J Med Chem 2017; 61:619-637. [DOI: 10.1021/acs.jmedchem.7b00393] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Federica Prati
- Drug Discovery Unit,
Division of Biological Chemistry and Drug Discovery, College of Life
Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, Scotland, U.K
| | - Giovanni Bottegoni
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Heptares Therapeutics Ltd., BioPark, Broadwater Road, Welwyn Garden City, Hertfordshire AL7 3AX, U.K
| | - Maria Laura Bolognesi
- Department
of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Andrea Cavalli
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Department
of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
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37
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Low JD, Bartberger MD, Chen K, Cheng Y, Fielden MR, Gore V, Hickman D, Liu Q, Allen Sickmier E, Vargas HM, Werner J, White RD, Whittington DA, Wood S, Minatti AE. Development of 2-aminooxazoline 3-azaxanthene β-amyloid cleaving enzyme (BACE) inhibitors with improved selectivity against Cathepsin D. MEDCHEMCOMM 2017; 8:1196-1206. [PMID: 30108829 PMCID: PMC6072065 DOI: 10.1039/c7md00106a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 04/20/2017] [Indexed: 12/20/2022]
Abstract
As part of an ongoing effort at Amgen to develop a disease-modifying therapy for Alzheimer's disease, we have previously used the aminooxazoline xanthene (AOX) scaffold to generate potent and orally efficacious BACE1 inhibitors. While AOX-BACE1 inhibitors demonstrated acceptable cardiovascular safety margins, a retinal pathological finding in rat toxicological studies demanded further investigation. It has been widely postulated that such retinal toxicity might be related to off-target inhibition of Cathepsin D (CatD), a closely related aspartyl protease. We report the development of AOX-BACE1 inhibitors with improved selectivity against CatD by following a structure- and property-based approach. Our efforts culminated in the discovery of a picolinamide-substituted 3-aza-AOX-BACE1 inhibitor absent of retinal effects in an early screening rat toxicology study.
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Affiliation(s)
- Jonathan D Low
- Department of Medicinal Chemistry , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA . ; Tel: +1 805 447 4721
| | - Michael D Bartberger
- Department of Molecular Engineering , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA
| | - Kui Chen
- Department Discovery Technologies , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA
| | - Yuan Cheng
- Department of Medicinal Chemistry , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA . ; Tel: +1 805 447 4721
| | - Mark R Fielden
- Comparative Biology and Safety Sciences , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA
| | - Vijay Gore
- Department of Medicinal Chemistry , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA . ; Tel: +1 805 447 4721
| | - Dean Hickman
- Department of Pharmacokinetics and Drug Metabolism , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA
| | - Qingyian Liu
- Department of Medicinal Chemistry , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA . ; Tel: +1 805 447 4721
| | - E Allen Sickmier
- Department of Molecular Engineering , Amgen Inc. , 360 Binney Street , Cambridge , MA 02142 , USA
| | - Hugo M Vargas
- Comparative Biology and Safety Sciences , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA
| | - Jonathan Werner
- Comparative Biology and Safety Sciences , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA
| | - Ryan D White
- Department of Medicinal Chemistry , Amgen Inc. , 360 Binney Street , Cambridge , MA 02142 , USA
| | - Douglas A Whittington
- Department of Molecular Engineering , Amgen Inc. , 360 Binney Street , Cambridge , MA 02142 , USA
| | - Stephen Wood
- Department of Neuroscience , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA
| | - Ana E Minatti
- Department of Medicinal Chemistry , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA . ; Tel: +1 805 447 4721
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38
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Zuhl AM, Nolan CE, Brodney MA, Niessen S, Atchison K, Houle C, Karanian DA, Ambroise C, Brulet JW, Beck EM, Doran SD, O'Neill BT, Am Ende CW, Chang C, Geoghegan KF, West GM, Judkins JC, Hou X, Riddell DR, Johnson DS. Chemoproteomic profiling reveals that cathepsin D off-target activity drives ocular toxicity of β-secretase inhibitors. Nat Commun 2016; 7:13042. [PMID: 27727204 PMCID: PMC5062570 DOI: 10.1038/ncomms13042] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 08/26/2016] [Indexed: 01/18/2023] Open
Abstract
Inhibition of β-secretase BACE1 is considered one of the most promising approaches for treating Alzheimer's disease. Several structurally distinct BACE1 inhibitors have been withdrawn from development after inducing ocular toxicity in animal models, but the target mediating this toxicity has not been identified. Here we use a clickable photoaffinity probe to identify cathepsin D (CatD) as a principal off-target of BACE1 inhibitors in human cells. We find that several BACE1 inhibitors blocked CatD activity in cells with much greater potency than that displayed in cell-free assays with purified protein. Through a series of exploratory toxicology studies, we show that quantifying CatD target engagement in cells with the probe is predictive of ocular toxicity in vivo. Taken together, our findings designate off-target inhibition of CatD as a principal driver of ocular toxicity for BACE1 inhibitors and more generally underscore the power of chemical proteomics for discerning mechanisms of drug action. Several β-secretase (BACE) inhibitors exhibit unexplained ocular toxicity in preclinical studies. Here the authors generate a clickable photoaffinity probe to interrogate off-targets in cells and animals, and identify inhibition of cathepsin D as a driver of ocular toxicity.
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Affiliation(s)
- Andrea M Zuhl
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Worldwide Medicinal Chemistry
| | - Charles E Nolan
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Neuroscience Research Unit
| | - Michael A Brodney
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Worldwide Medicinal Chemistry
| | - Sherry Niessen
- Worldwide Medicinal Chemistry.,Pfizer Worldwide Research and Development, San Diego, California 92121, USA
| | - Kevin Atchison
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Neuroscience Research Unit
| | - Christopher Houle
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, USA.,Drug Safety Research and Development
| | - David A Karanian
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, USA.,Drug Safety Research and Development
| | - Claude Ambroise
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Neuroscience Research Unit
| | - Jeffrey W Brulet
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Worldwide Medicinal Chemistry
| | - Elizabeth M Beck
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Worldwide Medicinal Chemistry
| | - Shawn D Doran
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, USA.,Pharmacokinetics, Dynamics and Metabolism
| | - Brian T O'Neill
- Worldwide Medicinal Chemistry.,Pfizer Worldwide Research and Development, Groton, Connecticut 06340, USA
| | - Christopher W Am Ende
- Worldwide Medicinal Chemistry.,Pfizer Worldwide Research and Development, Groton, Connecticut 06340, USA
| | - Cheng Chang
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, USA.,Pharmacokinetics, Dynamics and Metabolism
| | - Kieran F Geoghegan
- Worldwide Medicinal Chemistry.,Pfizer Worldwide Research and Development, Groton, Connecticut 06340, USA.,Structural Biology and Biophysics Group
| | - Graham M West
- Worldwide Medicinal Chemistry.,Pfizer Worldwide Research and Development, Groton, Connecticut 06340, USA.,Structural Biology and Biophysics Group
| | - Joshua C Judkins
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Worldwide Medicinal Chemistry
| | - Xinjun Hou
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Worldwide Medicinal Chemistry
| | - David R Riddell
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Neuroscience Research Unit
| | - Douglas S Johnson
- Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, USA.,Worldwide Medicinal Chemistry
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39
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Bull JA, Croft RA, Davis OA, Doran R, Morgan KF. Oxetanes: Recent Advances in Synthesis, Reactivity, and Medicinal Chemistry. Chem Rev 2016; 116:12150-12233. [DOI: 10.1021/acs.chemrev.6b00274] [Citation(s) in RCA: 241] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- James A. Bull
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Rosemary A. Croft
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Owen A. Davis
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Robert Doran
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Kate F. Morgan
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
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40
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Zheng YJ, Tice CM. The utilization of spirocyclic scaffolds in novel drug discovery. Expert Opin Drug Discov 2016; 11:831-4. [DOI: 10.1080/17460441.2016.1195367] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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41
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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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42
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Sumesh RV, Muthu M, Almansour AI, Suresh Kumar R, Arumugam N, Athimoolam S, Jeya Yasmi Prabha EA, Kumar RR. Multicomponent Dipolar Cycloaddition Strategy: Combinatorial Synthesis of Novel Spiro-Tethered Pyrazolo[3,4-b]quinoline Hybrid Heterocycles. ACS COMBINATORIAL SCIENCE 2016; 18:262-70. [PMID: 27027478 DOI: 10.1021/acscombsci.6b00003] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The stereoselective syntheses of a library of novel spiro-tethered pyrazolo[3,4-b]quinoline-pyrrolidine/pyrrolothiazole/indolizine-oxindole/acenaphthene hybrid heterocycles have been achieved through the 1,3-dipolar cycloaddition of azomethine ylides generated in situ from α-amino acids and 1,2-diketones to dipolarophiles derived from pyrazolo[3,4-b]quinoline derivatives.
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Affiliation(s)
- Remani Vasudevan Sumesh
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu India
| | - Muthumani Muthu
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu India
| | - Abdulrahman I. Almansour
- Department
of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Raju Suresh Kumar
- Department
of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Natarajan Arumugam
- Department
of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - S. Athimoolam
- Department
of Physics, University College of Engineering, Anna University Constituent College, Nagercoil 629 004, Tamil
Nadu India
| | - E. Arockia Jeya Yasmi Prabha
- Department
of Physics, University College of Engineering, Anna University Constituent College, Nagercoil 629 004, Tamil
Nadu India
| | - Raju Ranjith Kumar
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu India
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43
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Alizadeh A, Moafi L. N,N′-Bis(arylmethylidene)arylmethanediamines: Suitable Precursors for the Synthesis of 1-Pyrroline Derivatives. Helv Chim Acta 2016. [DOI: 10.1002/hlca.201500251] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Abdolali Alizadeh
- Department of Chemistry; Tarbiat Modares University; P.O. Box 14115-175 Tehran Iran
| | - Leila Moafi
- Department of Chemistry; Tarbiat Modares University; P.O. Box 14115-175 Tehran Iran
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44
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Efficient synthesis of chromenopyridines containing intramolecular hydrogen bonds through a sequential three-component reaction. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-015-2414-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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45
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Wyss DF, Cumming JN, Strickland CO, Stamford AW. BACE Inhibitors. FRAGMENT-BASED DRUG DISCOVERY LESSONS AND OUTLOOK 2016. [DOI: 10.1002/9783527683604.ch14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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46
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Guan L, Hao Y, Chen L, Wei ML, Jiang Q, Liu WY, Zhang YB, Zhang J, Feng F, Qu W. Synthesis and evaluation of neuroprotective 4-O-substituted chrysotoxine derivatives as potential multifunctional agents for the treatment of Alzheimer's disease. RSC Adv 2016. [DOI: 10.1039/c5ra21313d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of 4-O-substituted chrysotoxine (CTX) derivatives were designed, synthesized and evaluated as multifunctional agents for the treatment of Alzheimer's disease (AD).
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Affiliation(s)
- Li Guan
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Yanfeng Hao
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Lei Chen
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Meng-Lin Wei
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University)
- Ministry of Education
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Qin Jiang
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Wen-Yuan Liu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University)
- Ministry of Education
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Yan-Bo Zhang
- School of Chinese Medicine
- Li Ka Shing Faculty of Medicine
- The University of Hong Kong
- China
| | - Jie Zhang
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Feng Feng
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
- Key Laboratory of Biomedical Functional Materials
| | - Wei Qu
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
- Key Laboratory of Biomedical Functional Materials
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47
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El Bouakher A, Allouchi H, Abrunhosa-Thomas I, Troin Y, Guillaumet G. Suzuki-Miyaura Reactions of Halospirooxindole Derivatives. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500268] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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48
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Qian W, Brown J, Chen JJ, Cheng Y. Regioselective synthesis of multiply halogenated azaxanthones. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.11.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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49
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Epstein O, Bryan MC, Cheng AC, Derakhchan K, Dineen TA, Hickman D, Hua Z, Human JB, Kreiman C, Marx IE, Weiss MM, Wahl RC, Wen PH, Whittington DA, Wood S, Zheng XM, Fremeau RT, White RD, Patel VF. Lead optimization and modulation of hERG activity in a series of aminooxazoline xanthene β-site amyloid precursor protein cleaving enzyme (BACE1) inhibitors. J Med Chem 2014; 57:9796-810. [PMID: 25389560 DOI: 10.1021/jm501266w] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The optimization of a series of aminooxazoline xanthene inhibitors of β-site amyloid precursor protein cleaving enzyme 1 (BACE1) is described. An early lead compound showed robust Aβ lowering activity in a rat pharmacodynamic model, but advancement was precluded by a low therapeutic window to QTc prolongation in cardiovascular models consistent with in vitro activity on the hERG ion channel. While the introduction of polar groups was effective in reducing hERG binding affinity, this came at the expense of higher than desired Pgp-mediated efflux. A balance of low Pgp efflux and hERG activity was achieved by lowering the polar surface area of the P3 substituent while retaining polarity in the P2' side chain. The introduction of a fluorine in position 4 of the xanthene ring improved BACE1 potency (5-10-fold). The combination of these optimized fragments resulted in identification of compound 40, which showed robust Aβ reduction in a rat pharmacodynamic model (78% Aβ reduction in CSF at 10 mg/kg po) and also showed acceptable cardiovascular safety in vivo.
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Affiliation(s)
- Oleg Epstein
- Departments of Therapeutic Discovery, ‡Neuroscience, §Molecular Structure and Characterization, ∥Pharmacokinetics and Drug Metabolism, and ⊥Comparative Biology and Safety Sciences, Amgen Inc. , 360 Binney Street, Cambridge, Massachusetts 02142, One Amgen Center Drive, Thousand Oaks, California 91320, and 1120 Veterans Boulevard, South San Francisco, California 94080, United States
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