1
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Won Moon H, Nöthling N, Leutzsch M, Kuziola J, Cornella J. Characterization of Iminobismuthanes and Catalytic Reduction of Organic Azides via Bi(I)/Bi(III) Redox Cycling. Angew Chem Int Ed Engl 2025; 64:e202417864. [PMID: 39445742 DOI: 10.1002/anie.202417864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2024] [Revised: 10/23/2024] [Accepted: 10/23/2024] [Indexed: 10/25/2024]
Abstract
We report the stoichiometric and catalytic reactivity of organobismuth(I) complexes with organic azides. Treatment of N,C,N-pincer bismuthinidenes with organic azides (acyl, sulfonyl, and bulky aryl) results in monomeric iminobismuthanes which can be structurally characterized -including the formal Bi=N double bond- by multinuclear NMR spectroscopy and single-crystal X-ray diffraction. Building upon the stoichiometric reactivity of the monomeric iminobismuthanes, catalytic reduction of a broad range of organic azides is developed. DFT calculations of the catalytic reaction pathway support the redox nature of the overall process.
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Affiliation(s)
- Hye Won Moon
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz1, 45470, Mülheim an der Ruhr, Germany
| | - Nils Nöthling
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz1, 45470, Mülheim an der Ruhr, Germany
| | - Markus Leutzsch
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz1, 45470, Mülheim an der Ruhr, Germany
| | - Jennifer Kuziola
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz1, 45470, Mülheim an der Ruhr, Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz1, 45470, Mülheim an der Ruhr, Germany
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2
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Liu C, Miao R, Raza F, Qian H, Tian X. Research progress and challenges of TRPV1 channel modulators as a prospective therapy for diabetic neuropathic pain. Eur J Med Chem 2022; 245:114893. [DOI: 10.1016/j.ejmech.2022.114893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
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3
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Solvent-controlled synthesis of bulky and polar-bulky galactonoamidines. Carbohydr Res 2022; 513:108520. [DOI: 10.1016/j.carres.2022.108520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/04/2022] [Accepted: 02/08/2022] [Indexed: 11/15/2022]
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4
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Gryzło B, Zaręba P, Malawska K, Mazur G, Rapacz A, Ła̧tka K, Höfner GC, Latacz G, Bajda M, Sałat K, Wanner KT, Malawska B, Kulig K. Novel Functionalized Amino Acids as Inhibitors of GABA Transporters with Analgesic Activity. ACS Chem Neurosci 2021; 12:3073-3100. [PMID: 34347423 PMCID: PMC8397297 DOI: 10.1021/acschemneuro.1c00351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
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Neuropathic pain
resistance to pharmacotherapy has encouraged researchers
to develop effective therapies for its treatment. γ-Aminobutyric
acid (GABA) transporters 1 and 4 (mGAT1 and mGAT4) have been increasingly
recognized as promising drug targets for neuropathic pain (NP) associated
with imbalances in inhibitory neurotransmission. In this context,
we designed and synthesized new functionalized amino acids as inhibitors
of GABA uptake and assessed their activities toward all four mouse
GAT subtypes (mGAT1–4). According to the obtained results,
compounds 2RS,4RS-39c (pIC50 (mGAT4) = 5.36), 50a (pIC50 (mGAT2) = 5.43), and 56a (with moderate subtype selectivity
that favored mGAT4, pIC50 (mGAT4) = 5.04) were of particular
interest and were therefore evaluated for their cytotoxic and hepatotoxic
effects. In a set of in vivo experiments, both compounds 50a and 56a showed antinociceptive properties
in three rodent models of NP, namely, chemotherapy-induced neuropathic
pain models (the oxaliplatin model and the paclitaxel model) and the
diabetic neuropathic pain model induced by streptozotocin; however
compound 56a demonstrated predominant activity. Since
impaired motor coordination is also observed in neuropathic pain conditions,
we have pointed out that none of the test compounds induced motor
deficits in the rotarod test.
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Affiliation(s)
- Beata Gryzło
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Paula Zaręba
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Katarzyna Malawska
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Gabriela Mazur
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Anna Rapacz
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Kamil Ła̧tka
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Georg C. Höfner
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München Butenandtstraße 5-13, 81377 Munich, Germany
| | - Gniewomir Latacz
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Marek Bajda
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Kinga Sałat
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Klaus T. Wanner
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München Butenandtstraße 5-13, 81377 Munich, Germany
| | - Barbara Malawska
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Katarzyna Kulig
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
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5
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Yabuta T, Hayashi M, Matsubara R. Photocatalytic Reductive C-O Bond Cleavage of Alkyl Aryl Ethers by Using Carbazole Catalysts with Cesium Carbonate. J Org Chem 2021; 86:2545-2555. [PMID: 33439026 DOI: 10.1021/acs.joc.0c02663] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Methods to activate the relatively stable ether C-O bonds and convert them to other functional groups are desirable. One-electron reduction of ethers is a potentially promising route to cleave the C-O bond. However, owing to the highly negative redox potential of alkyl aryl ethers (Ered < -2.6 V vs SCE), this mode of ether C-O bond activation is challenging. Herein, we report the visible-light-induced photocatalytic cleavage of the alkyl aryl ether C-O bond using a carbazole-based organic photocatalyst (PC). Both benzylic and non-benzylic aryl ethers underwent C-O bond cleavage to form the corresponding phenol products. Addition of Cs2CO3 was beneficial, especially in reactions using a N-H carbazole PC. The reaction was proposed to occur via single-electron transfer (SET) from the excited-state carbazole to the substrate ether. Interaction of the N-H carbazole PC with Cs2CO3 via hydrogen bonding exists, which enables a deprotonation-assisted electron-transfer mechanism to operate. In addition, the Lewis acidic Cs cation interacts with the substrate alkyl aryl ether to activate it as an electron acceptor. The high reducing ability of the carbazole combined with the beneficial effects of Cs2CO3 made this otherwise formidable SET event possible.
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Affiliation(s)
- Tatsushi Yabuta
- Department of Chemistry, Graduate School of Science, Kobe University, Nada, Kobe 657-8501, Japan
| | - Masahiko Hayashi
- Department of Chemistry, Graduate School of Science, Kobe University, Nada, Kobe 657-8501, Japan
| | - Ryosuke Matsubara
- Department of Chemistry, Graduate School of Science, Kobe University, Nada, Kobe 657-8501, Japan
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6
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Gorbunova Y, Zakusilo DN, Boyarskaya IA, Vasilyev AV. Reactions of 3-arylpropenenitriles with arenes under superelectrophilic activation conditions: Hydroarylation of the carbon-carbon double bond followed by cyclization into 3-arylindanones. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131264] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7
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Rathod PB, Kumar KSA, Kumar M, Debnath AK, Pandey AK, Athawale AA. Palladium Acetate and Pd Nanoparticles Loaded Hexamethylenetetramine Anchored Magnetically Retrievable Assemblies for Catalyzing Mizoroki‐Heck Type Mono and
Gem
‐Dicoupling Reactions. ChemistrySelect 2020. [DOI: 10.1002/slct.201903498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Prakash B. Rathod
- Department of Chemistry Savitribai Phule Pune University Pune 411007 India
- Radiochemistry Division Bhabha Atomic Research Centre Trombay Mumbai 400085 India
| | - K. S. Ajish Kumar
- Bio-Organic Division Bhabha Atomic Research Centre Trombay Mumbai 400085 India
| | - Mukesh Kumar
- Radiation Biology & Health Sciences Division Bhabha Atomic Research Centre, Trombay Mumbai 400085 India
| | - A. K. Debnath
- Technical Physics Division Bhabha Atomic Research Centre, Trombay Mumbai 400085 India
| | - Ashok K. Pandey
- Radiochemistry Division Bhabha Atomic Research Centre Trombay Mumbai 400085 India
- Chemical Science, Homi Bhabha National Institute TSH Complex, Anushaktinagar Mumbai 400094 India
| | - Anjali A. Athawale
- Department of Chemistry Savitribai Phule Pune University Pune 411007 India
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8
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Kamble RB, Devalankar D, Suryavanshi G. Two stereocentered HKR of anti-β,β′-diphenylpropanoxirane and anti-3-phenylethyloxiranes catalysed by Co(iii)(salen)-OAc complex: enantioselective synthesis of (+)-sertraline and (+)-naproxen. NEW J CHEM 2018. [DOI: 10.1039/c8nj01616j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Two stereocentered HKR of anti-β,β′-diphenylmethyloxirane and anti-3-phenylethyloxiranes gives enantiopure anti-1,2-diols and oxiranes. This method is utilised for the synthesis of (+)-sertraline and (+)-naproxen.
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Affiliation(s)
- Rohit B. Kamble
- Chemical Engineering and Process Development Division
- National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific & Innovative Research
| | | | - Gurunath Suryavanshi
- Chemical Engineering and Process Development Division
- National Chemical Laboratory
- Pune-411008
- India
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9
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Selective Pd-catalyzed hydrogenation of 3,3-diphenylallyl alcohol: Efficient synthesis of 3,3-diarylpropylamine drugs diisopromine and feniprane. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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10
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Aghazadeh Tabrizi M, Baraldi PG, Baraldi S, Gessi S, Merighi S, Borea PA. Medicinal Chemistry, Pharmacology, and Clinical Implications of TRPV1 Receptor Antagonists. Med Res Rev 2016; 37:936-983. [PMID: 27976413 DOI: 10.1002/med.21427] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 10/24/2016] [Accepted: 11/01/2016] [Indexed: 12/28/2022]
Abstract
Transient receptor potential vanilloid 1 (TRPV1) is an ion channel expressed on sensory neurons triggering an influx of cations. TRPV1 receptors function as homotetramers responsive to heat, proinflammatory substances, lipoxygenase products, resiniferatoxin, endocannabinoids, protons, and peptide toxins. Its phosphorylation increases sensitivity to both chemical and thermal stimuli, while desensitization involves a calcium-dependent mechanism resulting in receptor dephosphorylation. TRPV1 functions as a sensor of noxious stimuli and may represent a target to avoid pain and injury. TRPV1 activation has been associated to chronic inflammatory pain and peripheral neuropathy. Its expression is also detected in nonneuronal areas such as bladder, lungs, and cochlea where TRPV1 activation is responsible for pathology development of cystitis, asthma, and hearing loss. This review offers a comprehensive overview about TRPV1 receptor in the pathophysiology of chronic pain, epilepsy, cough, bladder disorders, diabetes, obesity, and hearing loss, highlighting how drug development targeting this channel could have a clinical therapeutic potential. Furthermore, it summarizes the advances of medicinal chemistry research leading to the identification of highly selective TRPV1 antagonists and their analysis of structure-activity relationships (SARs) focusing on new strategies to target this channel.
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Affiliation(s)
- Mojgan Aghazadeh Tabrizi
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, 44121, Ferrara, Italy
| | - Pier Giovanni Baraldi
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, 44121, Ferrara, Italy
| | - Stefania Baraldi
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, 44121, Ferrara, Italy
| | - Stefania Gessi
- Section of Pharmacology, Department of Medical Sciences, University of Ferrara, 44121, Ferrara, Italy
| | - Stefania Merighi
- Section of Pharmacology, Department of Medical Sciences, University of Ferrara, 44121, Ferrara, Italy
| | - Pier Andrea Borea
- Section of Pharmacology, Department of Medical Sciences, University of Ferrara, 44121, Ferrara, Italy
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11
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Zask A, Ellestad GA. Recent Advances in Stereoselective Drug Targeting. Chirality 2015; 27:589-97. [PMID: 26096879 DOI: 10.1002/chir.22470] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 04/22/2015] [Indexed: 11/07/2022]
Abstract
Reviewed here are some recent examples of medically important protein targets for which stereoselective drugs have been identified. These include heat shock protein 90 (Hsp90) inhibitors as anticancer agents; transient receptor potential vanilloid type 1 antagonists as new analgesics; stereospecific inhibition of human mutT homolog MTH1 for cancer treatment; the stereoselective binding of R- and S-propranolol by the α1-acid glycoprotein transporter; metallohelical complexes that are nonpeptide α-helical mimetics that enantioselectively target Aβ amyloid for the treatment of Alzheimer's disease; metallohelical assemblies with promising antimicrobial activity that enantioselectively target DNA of resistant bacteria; nonpeptide α-helical metallohelices that target the DNA of cisplatin-resistant cancer cells; diastereomeric selectivity of phenanthriplatin-guanine adducts; and phenazine biosynthetic enzyme active sites that can host both enantiomers of a racemic ligand simultaneously.
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Affiliation(s)
- Arie Zask
- Department of Biological Sciences, Columbia University, New York, New York
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12
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Zakusilo DN, Ryabukhin DS, Boyarskaya IA, Yuzikhin OS, Vasilyev AV. Tandem superelectrophilic hydroarylation of C C bond and carbonyl reduction in cinnamides: synthetic rout to 3,3-diarylpropylamines, valuable pharmaceuticals. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Perlmutter J, Forbes LT, Krysan DJ, Ebsworth-Mojica K, Colquhoun JM, Wang J, Dunman PM, Flaherty DP. Repurposing the antihistamine terfenadine for antimicrobial activity against Staphylococcus aureus. J Med Chem 2014; 57:8540-62. [PMID: 25238555 PMCID: PMC4207543 DOI: 10.1021/jm5010682] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Indexed: 01/28/2023]
Abstract
Staphylococcus aureus is a rapidly growing health threat in the U.S., with resistance to several commonly prescribed treatments. A high-throughput screen identified the antihistamine terfenadine to possess, previously unreported, antimicrobial activity against S. aureus and other Gram-positive bacteria. In an effort to repurpose this drug, structure-activity relationship studies yielded 84 terfenadine-based analogues with several modifications providing increased activity versus S. aureus and other bacterial pathogens, including Mycobacterium tuberculosis. Mechanism of action studies revealed these compounds to exert their antibacterial effects, at least in part, through inhibition of the bacterial type II topoisomerases. This scaffold suffers from hERG liabilities which were not remedied through this round of optimization; however, given the overall improvement in activity of the set, terfenadine-based analogues provide a novel structural class of antimicrobial compounds with potential for further characterization as part of the continuing process to meet the current need for new antibiotics.
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Affiliation(s)
- Jessamyn
I. Perlmutter
- Department
of Microbiology and Immunology, University
of Rochester Medical Center, 601 Elmwood Avenue, Rochester, New York 14642, United
States
| | - Lauren T. Forbes
- Department
of Microbiology and Immunology, University
of Rochester Medical Center, 601 Elmwood Avenue, Rochester, New York 14642, United
States
| | - Damian J. Krysan
- Department
of Pediatrics, University of Rochester Medical
Center, 601 Elmwood Avenue, Rochester, New York 14642, United States
| | - Katherine Ebsworth-Mojica
- Department
of Microbiology and Immunology, University
of Rochester Medical Center, 601 Elmwood Avenue, Rochester, New York 14642, United
States
- Department
of Pediatrics, University of Rochester Medical
Center, 601 Elmwood Avenue, Rochester, New York 14642, United States
| | - Jennifer M. Colquhoun
- Department
of Microbiology and Immunology, University
of Rochester Medical Center, 601 Elmwood Avenue, Rochester, New York 14642, United
States
| | - Jenna
L. Wang
- Specialized
Chemistry Center, Delbert M. Shankel Structural Biology Center, University of Kansas, 2034 Becker Drive, Lawrence, Kansas 66047, United
States
| | - Paul M. Dunman
- Department
of Microbiology and Immunology, University
of Rochester Medical Center, 601 Elmwood Avenue, Rochester, New York 14642, United
States
| | - Daniel P. Flaherty
- Specialized
Chemistry Center, Delbert M. Shankel Structural Biology Center, University of Kansas, 2034 Becker Drive, Lawrence, Kansas 66047, United
States
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14
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Nagao S, Yamane Y, Funasaka S, Tanaka K, Miyazaki K, Kotake Y, Kamata JI, Watanabe-Miyano S, Toyama O, Ozawa Y, Mizui Y, Okamoto K, Ito D. Synthesis and structure–activity relationships of novel, potent, orally active hypoxia-inducible factor-1 inhibitors. Bioorg Med Chem 2014; 22:5513-29. [DOI: 10.1016/j.bmc.2014.07.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/14/2014] [Accepted: 07/14/2014] [Indexed: 12/29/2022]
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15
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Kowalczyk P, Sałat K, Höfner GC, Mucha M, Rapacz A, Podkowa A, Filipek B, Wanner KT, Kulig K. Synthesis, biological evaluation and structure–activity relationship of new GABA uptake inhibitors, derivatives of 4-aminobutanamides. Eur J Med Chem 2014; 83:256-73. [DOI: 10.1016/j.ejmech.2014.06.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 06/04/2014] [Accepted: 06/12/2014] [Indexed: 11/17/2022]
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16
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Betou M, Kerisit N, Meledje E, Leroux YR, Katan C, Halet JF, Guillemin JC, Trolez Y. High-Yield Formation of Substituted Tetracyanobutadienes from Reaction of Ynamides with Tetracyanoethylene. Chemistry 2014; 20:9553-7. [DOI: 10.1002/chem.201402653] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Indexed: 11/08/2022]
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17
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Kim HS, Jin MK, Kang SU, Lim JO, Tran PT, Hoang VH, Ann J, Ha TH, Pearce LV, Pavlyukovets VA, Blumberg PM, Lee J. α-Methylated simplified resiniferatoxin (sRTX) thiourea analogues as potent and stereospecific TRPV1 antagonists. Bioorg Med Chem Lett 2014; 24:2685-8. [PMID: 24794110 DOI: 10.1016/j.bmcl.2014.04.054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 04/10/2014] [Accepted: 04/12/2014] [Indexed: 11/15/2022]
Abstract
A series of α-methylated analogues of the potent sRTX thiourea antagonists were investigated as rTRPV1 ligands in order to examine the effect of α-methylation on receptor activity. The SAR analysis indicated that activity was stereospecific with the (R)-configuration of the newly formed chiral center providing high binding affinity and potent antagonism while the configuration of the C-region was not significant.
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Affiliation(s)
- Ho Shin Kim
- Laboratory of Medicinal Chemistry, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Mi-Kyoung Jin
- Laboratory of Medicinal Chemistry, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Sang-Uk Kang
- Laboratory of Medicinal Chemistry, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Ju-Ok Lim
- Laboratory of Medicinal Chemistry, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Phuong-Thao Tran
- Laboratory of Medicinal Chemistry, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Van-Hai Hoang
- Laboratory of Medicinal Chemistry, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Jihyae Ann
- Laboratory of Medicinal Chemistry, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Tae-Hwan Ha
- Laboratory of Medicinal Chemistry, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Larry V Pearce
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Vladimir A Pavlyukovets
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Peter M Blumberg
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Jeewoo Lee
- Laboratory of Medicinal Chemistry, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea.
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18
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Sindac JA, Barraza SJ, Dobry CJ, Xiang J, Blakely PK, Irani DN, Keep RF, Miller DJ, Larsen SD. Optimization of novel indole-2-carboxamide inhibitors of neurotropic alphavirus replication. J Med Chem 2013; 56:9222-41. [PMID: 24151954 DOI: 10.1021/jm401330r] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Neurotropic alphaviruses, which include western equine encephalitis virus (WEEV) and Fort Morgan virus, are mosquito-borne pathogens that infect the central nervous system causing acute and potentially fatal encephalitis. We previously reported a novel series of indole-2-carboxamides as alphavirus replication inhibitors, one of which conferred protection against neuroadapted Sindbis virus infection in mice. We describe here further development of this series, resulting in 10-fold improvement in potency in a WEEV replicon assay and up to 40-fold increases in half-lives in mouse liver microsomes. Using a rhodamine123 uptake assay in MDR1-MDCKII cells, we were able to identify structural modifications that markedly reduce recognition by P-glycoprotein, the key efflux transporter at the blood-brain barrier. In a preliminary mouse PK study, we were able to demonstrate that two new analogues could achieve higher and/or longer plasma drug exposures than our previous lead and that one compound achieved measurable drug levels in the brain.
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Affiliation(s)
- Janice A Sindac
- Vahlteich Medicinal Chemistry Core and ‡Department of Medicinal Chemistry, College of Pharmacy, §Departments of Internal Medicine and Microbiology and Immunology, ∥Department of Neurology, ⊥Department of Neurosurgery, University of Michigan , Ann Arbor, Michigan 48109, United States
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19
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Günbaş DD, Brouwer AM. Degenerate molecular shuttles with flexible and rigid spacers. J Org Chem 2012; 77:5724-35. [PMID: 22663771 DOI: 10.1021/jo300907r] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The preparation and dynamic behavior of degenerate rotaxane molecular shuttles are described in which a benzylic amide macrocycle moves back and forth between two naphthalimide-glycine units along a diphenylethyne spacer or an aliphatic spacer consisting of a C(9), C(12), or C(26) alkyl chain. Subtle differences in the (1)H NMR spectra of the rotaxanes can be related to the presence of conformers in which the macrocycle interacts simultaneously with both glycines, especially in the case of the C(9) spacer. The kinetic data of the shuttling behavior in the C(26) rotaxane were obtained from dynamic NMR spectroscopy. The Eyring activation parameters were found to be ΔH(‡) = 10 ± 1 kcal mol(-1), ΔS(‡) = -6.5 ± 2.0 cal mol(-1) K(-1), ΔG(‡)(298) = 11.9 ± 0.2 kcal mol(-1). For the systems with the shorter spacers, the shuttling rates were higher. Also in the diphenylethyne, rotaxane shuttling is rapid on the NMR time scale, indicating that the rigid unit does not impose a large barrier to the translocation of the macrocycle.
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Affiliation(s)
- D Deniz Günbaş
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, 1090 GD Amsterdam, The Netherlands
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20
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King FD, Caddick S. The acid-mediated ring opening reactions of α-aryl-lactams. Org Biomol Chem 2012; 10:3244-52. [PMID: 22406974 DOI: 10.1039/c2ob00012a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
4-Aryl-azetidin-2-ones (β-lactams) undergo ring opening with triflic acid to give cinnamamides which, in benzene, react further to give 3-aryl-3-phenyl-propionamides. Prolonged reaction times in benzene give 3,3-diphenyl-propionamide via an aryl/phenyl exchange. Lactams of ring size 7 and higher also ring open, but only 7- and 8-membered rings give pure diphenylalkylamides. AlCl(3) only ring opens the 4-aryl-azetidinones.
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Affiliation(s)
- Frank D King
- Dept. of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK.
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21
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Berglund M, Dalence-Guzmán MF, Skogvall S, Sterner O. SAR studies of capsazepinoid bronchodilators 3: The thiourea part (coupling region) and the 2-(4-chlorophenyl)ethyl moiety (C-region). Bioorg Med Chem 2008; 16:2529-40. [DOI: 10.1016/j.bmc.2007.11.056] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2006] [Revised: 11/14/2007] [Accepted: 11/21/2007] [Indexed: 10/22/2022]
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22
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Xiao J, Xu J, Cui S, Liu H, Wang S, Li Y. Supramolecular Helix of an Amphiphilic Pyrene Derivative Induced by Chiral Tryptophan through Electrostatic Interactions. Org Lett 2008; 10:645-8. [DOI: 10.1021/ol7030087] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jinchong Xiao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
| | - Jialiang Xu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
| | - Shuang Cui
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
| | - Huibiao Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
| | - Shu Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
| | - Yuliang Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
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23
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Abstract
CuH-catalyzed enantioselective conjugate reduction of 3,3-diaryl-substituted acrylonitriles is described. A range of 3-aryl-3-pyridylacrylonitriles were reduced with high levels of enantioselectivity under optimal conditions employing a copper/Josiphos complex in the presence of polymethylhydrosiloxane (PMHS).
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Affiliation(s)
- Daehyung Lee
- Department of Chemistry and Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Korea
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24
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Bonache MA, García-Martínez C, García de Diego L, Carreño C, Pérez de Vega MJ, García-López MT, Ferrer-Montiel A, González-Muñiz R. Old Molecules for New Receptors: Trp(Nps) Dipeptide Derivatives as Vanilloid TRPV1 Channel Blockers. ChemMedChem 2006; 1:429-38. [PMID: 16892378 DOI: 10.1002/cmdc.200500094] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The transient receptor potential vanilloid member 1 (TRPV1), an integrator of multiple pain-producing stimuli, is regarded nowadays as an important biological target for the discovery of novel analgesics. Here, we describe the first experimental evidence for the behavior of an old family of analgesic dipeptides, namely Xaa-Trp(Nps) and Trp(Nps)-Xaa (Xaa=Lys, Arg) derivatives, as potent TRPV1 channel blockers. We also report the synthesis and biological investigation of a series of new conformationally restricted Trp(Nps)-dipeptide derivatives with improved TRPV1/NMDA selectivity. Compound 15 b, which incorporates an N-terminal 2S-azetidine-derived Arg residue, was the most selective compound in this series. Collectively, a new family of TRPV1 channel blockers emerged from our results, although further modifications are required to fine-tune the potency/selectivity/toxicity balance.
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Affiliation(s)
- M Angeles Bonache
- Instituto de Química Médica (CSIC), Juan de la Cierva, 3, 28006 Madrid, Spain
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25
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Appendino G, Szallasi A. 4 Clinically Useful Vanilloid Receptor TRPV1 Antagonists: Just around the Corner (or too Early to Tell)? PROGRESS IN MEDICINAL CHEMISTRY 2006; 44:145-80. [PMID: 16697897 DOI: 10.1016/s0079-6468(05)44404-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Giovanni Appendino
- Dipartimento di Scienze Chimiche, Alimentari, Farmaceutiche e Farmacologiche, Università del Piemonte Orientale, Novara, Italy
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26
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Lee J, Kang SU, Kil MJ, Shin M, Lim JO, Choi HK, Jin MK, Kim SY, Kim SE, Lee YS, Min KH, Kim YH, Ha HJ, Tran R, Welter JD, Wang Y, Szabo T, Pearce LV, Lundberg DJ, Toth A, Pavlyukovets VA, Morgan MA, Blumberg PM. Analysis of structure–activity relationships for the ‘A-region’ of N-(4-t-butylbenzyl)-N′-[4-(methylsulfonylamino)benzyl]thiourea analogues as TRPV1 antagonists. Bioorg Med Chem Lett 2005; 15:4136-42. [PMID: 16005215 DOI: 10.1016/j.bmcl.2005.06.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2005] [Revised: 06/01/2005] [Accepted: 06/02/2005] [Indexed: 11/28/2022]
Abstract
The structure-activity relationships for the 'A-region' of N-(4-t-butylbenzyl)-N'-[4-(methylsulfonylamino)benzyl]thiourea analogues have been investigated as TRPV1 receptor antagonists. The 2-halogen analogues showed enhanced antagonism compared to the prototype antagonist.
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Affiliation(s)
- Jeewoo Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea.
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27
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Lee J, Jin MK, Kang SU, Kim SY, Lee J, Shin M, Hwang J, Cho S, Choi YS, Choi HK, Kim SE, Suh YG, Lee YS, Kim YH, Ha HJ, Toth A, Pearce LV, Tran R, Szabo T, Welter JD, Lundberg DJ, Wang Y, Lazar J, Pavlyukovets VA, Morgan MA, Blumberg PM. Analysis of structure–activity relationships for the ‘B-region’ of N-(4-t-butylbenzyl)-N′-[4-(methylsulfonylamino)benzyl]-thiourea analogues as TRPV1 antagonists. Bioorg Med Chem Lett 2005; 15:4143-50. [PMID: 15993063 DOI: 10.1016/j.bmcl.2005.06.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2005] [Revised: 06/01/2005] [Accepted: 06/02/2005] [Indexed: 11/29/2022]
Abstract
The structure-activity relationships for the 'B-region' of N-(4-t-butylbenzyl)-N'-[4-(methylsulfonylamino)benzyl]thiourea analogues have been investigated as TRPV1 receptor antagonists. A docking model of potent antagonist 2 with the sensor region of TRPV1 is proposed.
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Affiliation(s)
- Jeewoo Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea.
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28
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The TRPV1 Vanilloid Receptor: A Target for Therapeutic Intervention. ANNUAL REPORTS IN MEDICINAL CHEMISTRY 2005. [DOI: 10.1016/s0065-7743(05)40012-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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