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Šachlevičiūtė U, Gonzalez G, Kvasnicová M, Štěpánková Š, Kleizienė N, Bieliauskas A, Zatloukal M, Strnad M, Sløk FA, Kvasnica M, Šačkus A, Žukauskaitė A. Synthesis and neuroprotective activity of 3-aryl-3-azetidinyl acetic acid methyl ester derivatives. Arch Pharm (Weinheim) 2023; 356:e2300378. [PMID: 37797174 DOI: 10.1002/ardp.202300378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/07/2023]
Abstract
A library of 3-aryl-3-azetidinyl acetic acid methyl ester derivatives was prepared from N-Boc-3-azetidinone employing the Horner-Wadsworth-Emmons reaction, rhodium(I)-catalyzed conjugate addition of arylboronic acids, and subsequent elaborations to obtain N-unprotected hydrochlorides, N-alkylated and N-acylated azetidine derivatives. The compounds were evaluated for acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activity, revealing several derivatives to possess AChE inhibition comparable to that of the AChE inhibitor rivastigmine. The binding mode of the AChE inhibitor donepezil and selected active compounds 26 and 27 within the active site of AChE was studied using molecular docking. Furthermore, the neuroprotective activity of the prepared compounds was evaluated in models associated with Parkinson's disease (salsolinol-induced) and aspects of Alzheimer's disease (glutamate-induced oxidative damage). Compound 28 showed the highest neuroprotective effect in both salsolinol- and glutamate-induced neurodegeneration models, and its protective effect in the glutamate model was revealed to be driven by a reduction in oxidative stress and caspase-3/7 activity.
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Affiliation(s)
- Urtė Šachlevičiūtė
- Institute of Synthetic Chemistry, Kaunas University of Technology, Kaunas, Lithuania
| | - Gabriel Gonzalez
- Department of Experimental Biology, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic
- Department of Neurology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, Olomouc, Czech Republic
| | - Marie Kvasnicová
- Department of Experimental Biology, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic
| | - Šárka Štěpánková
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Neringa Kleizienė
- Institute of Synthetic Chemistry, Kaunas University of Technology, Kaunas, Lithuania
| | - Aurimas Bieliauskas
- Institute of Synthetic Chemistry, Kaunas University of Technology, Kaunas, Lithuania
| | - Marek Zatloukal
- Department of Chemical Biology, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences & Palacký University, Olomouc, Czech Republic
| | | | - Miroslav Kvasnica
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences & Palacký University, Olomouc, Czech Republic
| | - Algirdas Šačkus
- Institute of Synthetic Chemistry, Kaunas University of Technology, Kaunas, Lithuania
| | - Asta Žukauskaitė
- Department of Chemical Biology, Faculty of Science, Palacký University, Olomouc, Czech Republic
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2
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Li G, Cheng Y, Han C, Song C, Huang N, Du Y. Pyrazole-containing pharmaceuticals: target, pharmacological activity, and their SAR studies. RSC Med Chem 2022; 13:1300-1321. [PMID: 36439976 PMCID: PMC9667768 DOI: 10.1039/d2md00206j] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 08/25/2022] [Indexed: 11/21/2022] Open
Abstract
Pyrazole is a five-membered heterocycle bearing two adjacent nitrogen atoms. Both pharmaceutical agents and natural products with pyrazole as a nucleus have exhibited a broad spectrum of biological activities. In the last few decades, more than 40 pyrazole-containing drugs have been approved by the FDA for the treatment of a broad range of clinical conditions including celecoxib (anti-inflammatory), CDPPB (antipsychotic), difenamizole (analgesic), etc. Owing to the unique physicochemical properties of the pyrazole core, pyrazole-containing drugs may exert better pharmacokinetics and pharmacological effects compared with drugs containing similar heterocyclic rings. The purpose of this paper is to provide an overview of all the existing drugs bearing a pyrazole nucleus that have been approved or in clinical trials, involving their pharmacological activities and SAR studies.
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Affiliation(s)
- Guangchen Li
- School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072 China
| | - Yifu Cheng
- School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072 China
| | - Chi Han
- School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072 China
| | - Chun Song
- State Key Laboratory of Microbial Technology, Shandong University Qing Dao City Shandong Province 266237 China
| | - Niu Huang
- National Institution of Biological Sciences Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park Beijing 102206 China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University Beijing 102206 China
| | - Yunfei Du
- School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072 China
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3
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Gyorfi N, Farkas E, Nemet N, Weber C, Novak Z, Kotschy A. Copper-Catalyzed Trifluoromethylation of Alkoxypyridine Derivatives. Molecules 2020; 25:molecules25204766. [PMID: 33081411 PMCID: PMC7587554 DOI: 10.3390/molecules25204766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/09/2020] [Accepted: 10/13/2020] [Indexed: 11/29/2022] Open
Abstract
The trifluoromethylation of aromatic and heteroaromatic cores has attracted considerable interest in recent years due to its pharmacological relevance. We studied the extension of a simple copper-catalyzed trifluoromethylation protocol to alkoxy-substituted iodopyridines and their benzologs. The trifluoromethylation proceeded smoothly in all cases, and the desired compounds were isolated and characterized. In the trifluoromethylation of 3-iodo-4-methoxyquinoline, we observed a concomitant O-N methyl migration, resulting in the trifluoromethylated quinolone as a product. Overall, the described procedure should facilitate the broader use of copper-catalyzed trifluoromethylation in medicinal chemistry.
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Affiliation(s)
- Nandor Gyorfi
- Servier Research Institute of Medicinal Chemistry, Záhony u. 7., H-1031 Budapest, Hungary; (N.G.); (E.F.); (N.N.); (C.W.)
| | - Emese Farkas
- Servier Research Institute of Medicinal Chemistry, Záhony u. 7., H-1031 Budapest, Hungary; (N.G.); (E.F.); (N.N.); (C.W.)
| | - Norbert Nemet
- Servier Research Institute of Medicinal Chemistry, Záhony u. 7., H-1031 Budapest, Hungary; (N.G.); (E.F.); (N.N.); (C.W.)
| | - Csaba Weber
- Servier Research Institute of Medicinal Chemistry, Záhony u. 7., H-1031 Budapest, Hungary; (N.G.); (E.F.); (N.N.); (C.W.)
| | - Zoltan Novak
- Institute of Chemistry, Eötvös Loránd Unversity, Pázmány Péter s. 1/A, H-1117 Budapest, Hungary;
| | - Andras Kotschy
- Servier Research Institute of Medicinal Chemistry, Záhony u. 7., H-1031 Budapest, Hungary; (N.G.); (E.F.); (N.N.); (C.W.)
- Correspondence: ; Tel.: +36-1-881-2000
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4
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Bollenbach M, Lugnier C, Kremer M, Salvat E, Megat S, Bihel F, Bourguignon JJ, Barrot M, Schmitt M. Design and synthesis of 3-aminophthalazine derivatives and structural analogues as PDE5 inhibitors: anti-allodynic effect against neuropathic pain in a mouse model. Eur J Med Chem 2019; 177:269-290. [DOI: 10.1016/j.ejmech.2019.05.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/30/2019] [Accepted: 05/07/2019] [Indexed: 12/13/2022]
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5
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Pobsuk N, Paracha TU, Chaichamnong N, Salaloy N, Suphakun P, Hannongbua S, Choowongkomon K, Pekthong D, Chootip K, Ingkaninan K, Gleeson MP. Design, synthesis and evaluation of N2,N4-diaminoquinazoline based inhibitors of phosphodiesterase type 5. Bioorg Med Chem Lett 2019; 29:267-270. [DOI: 10.1016/j.bmcl.2018.11.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/19/2018] [Accepted: 11/20/2018] [Indexed: 12/23/2022]
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6
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Skalicka-Woźniak K, Georgiev MI, Orhan IE. Adulteration of herbal sexual enhancers and slimmers: The wish for better sexual well-being and perfect body can be risky. Food Chem Toxicol 2017; 108:355-364. [DOI: 10.1016/j.fct.2016.06.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 06/16/2016] [Accepted: 06/17/2016] [Indexed: 11/25/2022]
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7
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Potapov AY, Vandyshev DY, Kosheleva YA, Polikarchuk VA, Potapov MA, Shikhaliev KS. Cyclization of 5-amino-1-aryl-1H-pyrazole-4-carbonitriles with β-dicarbonyl compounds. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2041-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Jansen C, Kooistra AJ, Kanev GK, Leurs R, de Esch IJP, de Graaf C. PDEStrIAn: A Phosphodiesterase Structure and Ligand Interaction Annotated Database As a Tool for Structure-Based Drug Design. J Med Chem 2016; 59:7029-65. [DOI: 10.1021/acs.jmedchem.5b01813] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Chimed Jansen
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute
of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Albert J. Kooistra
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute
of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Georgi K. Kanev
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute
of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Rob Leurs
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute
of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Iwan J. P. de Esch
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute
of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Chris de Graaf
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute
of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
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9
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Kelgokmen Y, Zora M. Facile synthesis of heavily-substituted alkynylpyridines via a Sonogashira approach. RSC Adv 2016. [DOI: 10.1039/c5ra21701f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A robust synthesis of highly-substituted alkynylpyridines via a Sonogashira approach is described, providing a library of functionalized pyridines for biological studies.
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Affiliation(s)
- Yilmaz Kelgokmen
- Department of Chemistry
- Middle East Technical University
- 06800 Ankara
- Turkey
| | - Metin Zora
- Department of Chemistry
- Middle East Technical University
- 06800 Ankara
- Turkey
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10
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Karadeniz E, Zora M, Kılıçaslan NZ. Facile synthesis of aryl-substituted pyridines via Suzuki–Miyaura approach. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.063] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Facile synthesis of iodopyridines from N-propargylic β-enaminones via iodine-mediated electrophilic cyclization. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.070] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Li M, Zhao BX. Progress of the synthesis of condensed pyrazole derivatives (from 2010 to mid-2013). Eur J Med Chem 2014; 85:311-40. [PMID: 25104650 DOI: 10.1016/j.ejmech.2014.07.102] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 07/25/2014] [Accepted: 07/26/2014] [Indexed: 01/08/2023]
Abstract
Condensed pyrazole derivatives are important heterocyclic compounds due to their excellent biological activities and have been widely applied in pharmaceutical and agromedical fields. In recent years, numerous condensed pyrazole derivatives have been synthesized and advanced to clinic studies with various biological activities. In this review, we summarized the reported synthesis methods of condensed pyrazole derivatives from 2010 until now. All compounds are divided into three parts according to the rings connected to pyrazole-ring, i.e. [5, 5], [5,F 6], and [5, 7]-condensed pyrazole derivatives. The biological activities and applications in pharmaceutical fields are briefly introduced to offer an orientation for the design and synthesis of condensed pyrazole derivatives with good biological activities.
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Affiliation(s)
- Meng Li
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
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13
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Venhuis B, de Kaste D. Towards a decade of detecting new analogues of sildenafil, tadalafil and vardenafil in food supplements: A history, analytical aspects and health risks. J Pharm Biomed Anal 2012; 69:196-208. [DOI: 10.1016/j.jpba.2012.02.014] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 02/13/2012] [Accepted: 02/14/2012] [Indexed: 11/24/2022]
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14
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Rawson DJ, Ballard S, Barber C, Barker L, Beaumont K, Bunnage M, Cole S, Corless M, Denton S, Ellis D, Floc'h M, Foster L, Gosset J, Holmwood F, Lane C, Leahy D, Mathias J, Maw G, Million W, Poinsard C, Price J, Russel R, Street S, Watson L. The discovery of UK-369003, a novel PDE5 inhibitor with the potential for oral bioavailability and dose-proportional pharmacokinetics. Bioorg Med Chem 2011; 20:498-509. [PMID: 22100260 DOI: 10.1016/j.bmc.2011.10.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 10/02/2011] [Accepted: 10/07/2011] [Indexed: 11/28/2022]
Abstract
This paper describes our recent efforts to design and synthesise potent and selective PDE5 inhibitors and the use of in vitro predictors of clearance, absorption and permeability to maximise the potential for dose-proportional pharmacokinetics and good oral bioavailability in man. Optimisation of the preclinical profile resulted in the identification of UK-369003 (19a) and its nomination as a clinical candidate. The clinical pharmacokinetic and safety profile has enabled us to progress the compound to test its efficacy in patients with lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH) and a paper describing its efficacy has recently been published.
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Affiliation(s)
- David J Rawson
- Worldwide Medicinal Chemistry, Ramsgate Road, Sandwich, Kent CT13 9NJ, UK.
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15
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Niinivehmas SP, Virtanen SI, Lehtonen JV, Postila PA, Pentikäinen OT. Comparison of virtual high-throughput screening methods for the identification of phosphodiesterase-5 inhibitors. J Chem Inf Model 2011; 51:1353-63. [PMID: 21591817 DOI: 10.1021/ci1004527] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reliable and effective virtual high-throughput screening (vHTS) methods are desperately needed to minimize the expenses involved in drug discovery projects. Here, we present an improvement to the negative image-based (NIB) screening: the shape, the electrostatics, and the solvation state of the target protein's ligand-binding site are included into the vHTS. Additionally, the initial vHTS results are postprocessed with molecular mechanics/generalized Born surface area (MMGBSA) calculations to estimate the favorability of ligand-protein interactions. The results show that docking produces very good early enrichment for phosphodiesterase-5 (PDE-5); however, in general, the NIB and the ligand-based screening performed better with or without the added electrostatics. Furthermore, the postprocessing of the NIB screening results using MMGBSA calculations improved the early enrichment for the PDE-5 considerably, thus, making hit discovery affordable.
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Affiliation(s)
- Sanna P Niinivehmas
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
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16
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Day JP, Lindsay B, Riddell T, Jiang Z, Allcock RW, Abraham A, Sookup S, Christian F, Bogum J, Martin EK, Rae RL, Anthony D, Rosair GM, Houslay DM, Huston E, Baillie GS, Klussmann E, Houslay MD, Adams DR. Elucidation of a Structural Basis for the Inhibitor-Driven, p62 (SQSTM1)-Dependent Intracellular Redistribution of cAMP Phosphodiesterase-4A4 (PDE4A4). J Med Chem 2011; 54:3331-47. [DOI: 10.1021/jm200070e] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Jonathan P. Day
- Molecular Pharmacology Group, Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Barbara Lindsay
- Department of Chemistry, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton Campus, Edinburgh EH14 4AS, U.K
| | - Tracy Riddell
- Molecular Pharmacology Group, Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Zhong Jiang
- Department of Chemistry, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton Campus, Edinburgh EH14 4AS, U.K
| | - Robert W. Allcock
- Department of Chemistry, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton Campus, Edinburgh EH14 4AS, U.K
| | - Achamma Abraham
- Department of Chemistry, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton Campus, Edinburgh EH14 4AS, U.K
| | - Sebastian Sookup
- Molecular Pharmacology Group, Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Frank Christian
- Molecular Pharmacology Group, Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Jana Bogum
- Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin-Buch, Robert-Rössle-Strasse 10, 13125 Berlin, Germany
| | - Elisabeth K. Martin
- Department of Chemistry, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton Campus, Edinburgh EH14 4AS, U.K
| | - Robert L. Rae
- Department of Chemistry, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton Campus, Edinburgh EH14 4AS, U.K
| | - Diana Anthony
- Molecular Pharmacology Group, Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Georgina M. Rosair
- Department of Chemistry, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton Campus, Edinburgh EH14 4AS, U.K
| | - Daniel M. Houslay
- Molecular Pharmacology Group, Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Elaine Huston
- Molecular Pharmacology Group, Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - George S. Baillie
- Molecular Pharmacology Group, Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Enno Klussmann
- Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin-Buch, Robert-Rössle-Strasse 10, 13125 Berlin, Germany
| | - Miles D. Houslay
- Molecular Pharmacology Group, Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - David R. Adams
- Department of Chemistry, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton Campus, Edinburgh EH14 4AS, U.K
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17
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Bell AS, Palmer MJ. The Discovery of the Long-acting PDE5 Inhibitor PF-489791 for the Treatment of Pulmonary Hypertension. ACCOUNTS IN DRUG DISCOVERY 2010. [DOI: 10.1039/9781849731980-00166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Clinical studies with our male erectile dysfunction medicine, sildenafil, identified several additional indications for PDE5 inhibitors. Since these include disease indications requiring chronic treatment and/or single dose daily dosing in order to be competitive, we sought novel agents with an excellent safety profile, and in particular, no potential for off-target activity against other PDE family members.
We were able to identify a second generation PDE5 agent meeting these requirement based on a HTS–derived series. Key elements in discovery were the focus on physicochemistry and pharmacokinetics throughout the programme, together with the use of co-crystal structure data to guide design and identification of a parallel chemistry amenable, wide synthetic scope template. These elements enabled rapid discovery of a proprietary lead 3 with inherently good physicochemistry, a novel aminopyridine pharmacophore and PDE6 selectivity. Further optimisation provided advanced acidic, neutral and basic leads. Finally, a potent and selective acidic clinical candidate 13 with low clearance and an outstanding safety profile was identified. The excellent pre-clinical profile derived from our property-based strategy has successfully translated to once daily oral pharmacokinetics in man.
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Affiliation(s)
- Andrew S. Bell
- Sandwich Laboratories Pfizer Global Research and Development, Sandwich Kent CT13 9NJ UK
| | - Michael J. Palmer
- Sandwich Laboratories Pfizer Global Research and Development, Sandwich Kent CT13 9NJ UK
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18
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Wu MH, Hu JH, Shen DS, Brémond P, Guo H. Regiospecific synthesis of 6-aryl-3-cyano-5-alkylamino/arylamino-1-p-tolyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-ones via iminophosphorane-mediated annulation. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.114] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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Novel 6-N-arylcarboxamidopyrazolo[4,3-d]pyrimidin-7-one derivatives as potential anti-cancer agents. Bioorg Med Chem Lett 2010; 20:1630-3. [DOI: 10.1016/j.bmcl.2010.01.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2009] [Revised: 12/08/2009] [Accepted: 01/13/2010] [Indexed: 11/19/2022]
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20
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Zhang LJ, Shi DX, Li JR. Simultaneous Synthesis of Pyrazolopyridines and Pyrazolopyrimidinones Under Microwave Irradiation. SYNTHETIC COMMUN 2009. [DOI: 10.1080/00397910902883629] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Hu JH, Wu MH. 5-Butylamino-6-(4-fluorophenyl)-7-oxo-1- p-tolyl-6,7-dihydro-1 H-pyrazolo[4,3- d]pyrimidine-3-carbonitrile. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o845. [PMID: 21202333 PMCID: PMC2961236 DOI: 10.1107/s1600536808009744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2008] [Accepted: 04/08/2008] [Indexed: 11/10/2022]
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22
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Fraser HL, Hopper DW, Kutterer KM, Crombie AL. Chapter 6.1 Six-membered ring systems: pyridine and benzo derivatives. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/s0959-6380(08)80014-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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