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Cataffo A, Peña-López M, Pedrazzani R, Echavarren AM. Chiral Auxiliary Approach for Gold(I)-Catalyzed Cyclizations. Angew Chem Int Ed Engl 2023; 62:e202312874. [PMID: 37872748 DOI: 10.1002/anie.202312874] [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: 08/31/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 10/25/2023]
Abstract
Two different classes of stereoselective cyclizations have been developed using a chiral auxiliary approach with commercially available [JohnPhosAu(MeCN)SbF6 ] as catalyst. First, a stereoselective cascade cyclization of 1,5-enynes was achieved using the Oppolzer camphorsultam as chiral auxiliary. In this case, a one-pot cyclization-hydrolysis sequence was developed to directly afford enantioenriched spirocyclic ketones. Then, the stereoselective alkoxycyclization of 1,6-enynes was mediated by an Evans-type oxazolidinone. A reduction-hydrolysis sequence was selected to remove the auxiliary to give enantioenriched β-tetralones. DFT studies confirmed that the steric clash between the chiral auxiliary and alkene accounts for the experimentally observed diastereoselective cyclization through the Si face.
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Affiliation(s)
- Andrea Cataffo
- Institute of Chemical Research of Catalonia (ICIQ), CERCA, Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
| | - Miguel Peña-López
- Institute of Chemical Research of Catalonia (ICIQ), CERCA, Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
| | - Riccardo Pedrazzani
- Institute of Chemical Research of Catalonia (ICIQ), CERCA, Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), CERCA, Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
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Ma Z, Zhang W, Han X, Li G. Design, synthesis, cytotoxic activity, and in silico studies of nitrogenous stilbenes. Fitoterapia 2023; 170:105625. [PMID: 37507054 DOI: 10.1016/j.fitote.2023.105625] [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: 05/30/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 07/30/2023]
Abstract
In present study, five series of 45 nitrogenous stilbenes including 35 new compounds were designed, synthesized, and assayed for cytotoxic activities against two human tumor cell lines (K562 cells and MDA-MB-231 cells) and normal cell line (L-02 cells). Structure-activity relationships showed the introduction of N,N-dimethylamino enhanced the cytotoxicities toward K562 cells and compounds with N-methyl piperazine displayed stronger potency toward MDA-MB-231 cells. Among them, compound NS1i possessed extremely potent cytotoxicity with IC50 values 0.93 μM against K562 cells along with excellent selectivity on normal cell viability. Moreover, in silico target prediction and molecule docking demonstrated quinone reductase 2 may be the potential target for NS1i. In summary, nitrogenous stilbenes afford significant potential for the discovery of new highly efficient anticancer agents and NS1i may serve as a promising lead deserve further investigation.
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Affiliation(s)
- Zongchen Ma
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Wenjie Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Xiao Han
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Guoqiang Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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3
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Mucke HA. Patent highlights October-November 2022. Pharm Pat Anal 2023; 12:95-102. [PMID: 37477491 DOI: 10.4155/ppa-2023-0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
A snapshot of recent noteworthy developments in the patent literature of relevance to pharmaceutical and medical research and development.
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Bhurta D, Bharate SB. Styryl Group, a Friend or Foe in Medicinal Chemistry. ChemMedChem 2022; 17:e202100706. [PMID: 35166041 DOI: 10.1002/cmdc.202100706] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/12/2022] [Indexed: 11/10/2022]
Abstract
The styryl (Ph-CH=CH-R) group is widely represented in medicinally important compounds, including drugs, clinical candidates, and molecular probes as it positively impacts the lipophilicity, oral absorption, and biological activity. The analysis of matched molecular pairs (styryl vs. phenethyl, phenyl, methyl, H) for the biological activity indicates the superiority aspect of styryl compounds. However, the Michael acceptor site in the styryl group makes it amenable to the nucleophilic attack by biological nucleophiles and transformation to the toxic metabolites. One of the downsides of styryl compounds is isomerization that impacts the molecular conformation and directly affects biological activity. The impact of cis-trans isomerism and isosteric replacements on biological activity is exemplified. We also discuss the styryl group-bearing drugs, clinical candidates, and fluorescent probes. Overall, the present review reveals the utility of the styryl group in medicinal chemistry and drug discovery.
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Affiliation(s)
- Deendyal Bhurta
- Council of Scientific & Industrial Research Indian Institute of Integrative Medicine, Natural Products and medicinal chemistry, 180001, Jammu, INDIA
| | - Sandip Bibishan Bharate
- Indian Institute of Integrative Medicine CSIR, Natural Products & Medicinal Chemistry, Canal Road, 180001, Jammu, INDIA
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Mattio LM, Pinna C, Catinella G, Musso L, Pedersen KJ, Krogfelt KA, Dallavalle S, Pinto A. Synthesis and Antimicrobial Activity of δ-Viniferin Analogues and Isosteres. Molecules 2021; 26:7594. [PMID: 34946674 PMCID: PMC8703454 DOI: 10.3390/molecules26247594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/08/2021] [Accepted: 12/12/2021] [Indexed: 12/17/2022] Open
Abstract
The natural stilbenoid dehydro-δ-viniferin, containing a benzofuran core, has been recently identified as a promising antimicrobial agent. To define the structural elements relevant to its activity, we modified the styryl moiety, appended at C5 of the benzofuran ring. In this paper, we report the construction of stilbenoid-derived 2,3-diaryl-5-substituted benzofurans, which allowed us to prepare a focused collection of dehydro-δ-viniferin analogues. The antimicrobial activity of the synthesized compounds was evaluated against S. aureus ATCC29213. The simplified analogue 5,5'-(2-(4-hydroxyphenyl)benzofuran-3,5-diyl)bis(benzene-1,3-diol), obtained in three steps from 4-bromo-2-iodophenol (63% overall yield), emerged as a promising candidate for further investigation (MIC = 4 µg/mL).
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Affiliation(s)
- Luce Micaela Mattio
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Cecilia Pinna
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Giorgia Catinella
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Loana Musso
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Kasandra Juliet Pedersen
- Institute of Molecular and Medical Biology, Roskilde University, 4000 Roskilde, Denmark; (K.J.P.); (K.A.K.)
| | - Karen Angeliki Krogfelt
- Institute of Molecular and Medical Biology, Roskilde University, 4000 Roskilde, Denmark; (K.J.P.); (K.A.K.)
| | - Sabrina Dallavalle
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
| | - Andrea Pinto
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy; (L.M.M.); (C.P.); (G.C.); (L.M.); (A.P.)
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Janda E, Nepveu F, Calamini B, Ferry G, Boutin JA. Molecular Pharmacology of NRH:Quinone Oxidoreductase 2: A Detoxifying Enzyme Acting as an Undercover Toxifying Enzyme. Mol Pharmacol 2020; 98:620-633. [DOI: 10.1124/molpharm.120.000105] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/11/2020] [Indexed: 01/02/2023] Open
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Pecyna P, Wargula J, Murias M, Kucinska M. More Than Resveratrol: New Insights into Stilbene-Based Compounds. Biomolecules 2020; 10:E1111. [PMID: 32726968 PMCID: PMC7465418 DOI: 10.3390/biom10081111] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 02/07/2023] Open
Abstract
The concept of a scaffold concerns many aspects at different steps on the drug development path. In medicinal chemistry, the choice of relevant "drug-likeness" scaffold is a starting point for the design of the structure dedicated to specific molecular targets. For many years, the chemical uniqueness of the stilbene structure has inspired scientists from different fields such as chemistry, biology, pharmacy, and medicine. In this review, we present the outstanding potential of the stilbene-based derivatives. Naturally occurring stilbenes, together with powerful synthetic chemistry possibilities, may offer an excellent approach for discovering new structures and identifying their therapeutic targets. With the development of scientific tools, sophisticated equipment, and a better understanding of the disease pathogenesis at the molecular level, the stilbene scaffold has moved innovation in science. This paper mainly focuses on the stilbene-based compounds beyond resveratrol, which are particularly attractive due to their biological activity. Given the "fresh outlook" about different stilbene-based compounds starting from stilbenoids with particular regard to isorhapontigenin and methoxy- and hydroxyl- analogues, the update about the combretastatins, and the very often overlooked and underestimated benzanilide analogues, we present a new story about this remarkable structure.
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Affiliation(s)
- Paulina Pecyna
- Department of Genetics and Pharmaceutical Microbiology, University of Medical Sciences, Swiecickiego 4 Street, 60-781 Poznan, Poland;
| | - Joanna Wargula
- Department of Organic Chemistry, University of Medical Sciences, Grunwaldzka 6 Street, 60-780 Poznan, Poland;
| | - Marek Murias
- Department of Toxicology, University of Medical Sciences, Dojazd 30 Street, 60-631 Poznan, Poland;
| | - Malgorzata Kucinska
- Department of Toxicology, University of Medical Sciences, Dojazd 30 Street, 60-631 Poznan, Poland;
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Abstract
The concept of a scaffold concerns many aspects at different steps on the drug development path. In medicinal chemistry, the choice of relevant "drug-likeness" scaffold is a starting point for the design of the structure dedicated to specific molecular targets. For many years, the chemical uniqueness of the stilbene structure has inspired scientists from different fields such as chemistry, biology, pharmacy, and medicine. In this review, we present the outstanding potential of the stilbene-based derivatives. Naturally occurring stilbenes, together with powerful synthetic chemistry possibilities, may offer an excellent approach for discovering new structures and identifying their therapeutic targets. With the development of scientific tools, sophisticated equipment, and a better understanding of the disease pathogenesis at the molecular level, the stilbene scaffold has moved innovation in science. This paper mainly focuses on the stilbene-based compounds beyond resveratrol, which are particularly attractive due to their biological activity. Given the "fresh outlook" about different stilbene-based compounds starting from stilbenoids with particular regard to isorhapontigenin and methoxy- and hydroxyl- analogues, the update about the combretastatins, and the very often overlooked and underestimated benzanilide analogues, we present a new story about this remarkable structure.
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Berretta M, Bignucolo A, Di Francia R, Comello F, Facchini G, Ceccarelli M, Iaffaioli RV, Quagliariello V, Maurea N. Resveratrol in Cancer Patients: From Bench to Bedside. Int J Mol Sci 2020; 21:E2945. [PMID: 32331450 PMCID: PMC7216168 DOI: 10.3390/ijms21082945] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 02/07/2023] Open
Abstract
Resveratrol (3,5,4'-trihydroxystilbene) is a natural phytoalexin that accumulates in several vegetables and fruits like nuts, grapes, apples, red fruits, black olives, capers, red rice as well as red wines. Being both an extremely reactive molecule and capable to interact with cytoplasmic and nuclear proteins in human cells, resveratrol has been studied over the years as complementary and alternative medicine (CAM) for the therapy of cancer, metabolic and cardiovascular diseases like myocardial ischemia, myocarditis, cardiac hypertrophy and heart failure. This review will describe the main biological targets, cardiovascular outcomes, physico-chemical and pharmacokinetic properties of resveratrol in preclinical and clinical models implementing its potential use in cancer patients.
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Affiliation(s)
- Massimiliano Berretta
- Department of Medical Oncology-Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Alessia Bignucolo
- Experimental and Clinical Pharmacology-Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy; (A.B.); (F.C.)
| | - Raffaele Di Francia
- Gruppo Oncologico Ricercatori Italiani, GORI-ONLUS, 33170 Pordenone (PN), Italy;
| | - Francesco Comello
- Experimental and Clinical Pharmacology-Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy; (A.B.); (F.C.)
| | - Gaetano Facchini
- UOC Oncologia, ASL Napoli 2 Nord, P.O. “S.M. delle Grazie”, Pozzuoli-Ischia, 80078 Napoli, Italy;
| | - Manuela Ceccarelli
- Department of Clinical and Experimental Medicine, Unit of Infectious Diseases, University of Catania, 95122 Catania, Italy;
| | - Rosario Vincenzo Iaffaioli
- Association for Multidisciplinary Studies in Oncology and Mediterranean Diet, Piazza Nicola Amore, 80138 Naples, Italy;
| | - Vincenzo Quagliariello
- Division of Cardiology, Istituto Nazionale Tumori- IRCCS- Fondazione G. Pascale, 80131 Napoli, Italy; (V.Q.); (N.M.)
| | - Nicola Maurea
- Division of Cardiology, Istituto Nazionale Tumori- IRCCS- Fondazione G. Pascale, 80131 Napoli, Italy; (V.Q.); (N.M.)
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11
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Reinhardt CR, Hu QH, Bresnahan CG, Hati S, Bhattacharyya S. Cyclic Changes in Active Site Polarization and Dynamics Drive the 'Ping-pong' Kinetics in NRH:Quinone Oxidoreductase 2: An Insight from QM/MM Simulations. ACS Catal 2018; 8:12015-12029. [PMID: 31583178 DOI: 10.1021/acscatal.8b04193] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Quinone reductases belong to the family of flavin-dependent oxidoreductases. With the redox active cofactor, flavin adenine dinucleotide, quinone reductases are known to utilize a 'ping-pong' kinetic mechanism during catalysis in which a hydride is bounced back and forth between flavin and its two substrates. However, the continuation of this catalytic cycle requires product displacement steps, where the product of one redox half-cycle is displaced by the substrate of the next half-cycle. Using improved hybrid quantum mechanical/molecular mechanical simulations, both the catalytic hydride transfer and the product displacement reactions were studied in NRH:quinone oxidoreductase 2. Initially, the self-consistent charge-density functional tight binding theory was used to describe flavin ring and the substrate atoms, while embedded in the molecular mechanically-treated solvated active site. Then, for each step of the catalytic cycle, a further improvement of energetics was made using density functional theory-based corrections. The present study showcases an integrated interplay of solvation, protonation, and protein matrix-induced polarization as the driving force behind the thermodynamic wheel of the 'ping-pong' kinetics. Reported here is the first-principles model of the 'ping-pong' kinetics that portrays how cyclic changes in the active site polarization and dynamics govern the oscillatory hydride transfer and product displacement in this enzyme.
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Affiliation(s)
- Clorice R. Reinhardt
- Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, Wisconsin 54702, United States
| | - Quin H. Hu
- Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, Wisconsin 54702, United States
| | - Caitlin G. Bresnahan
- Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, Wisconsin 54702, United States
| | - Sanchita Hati
- Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, Wisconsin 54702, United States
| | - Sudeep Bhattacharyya
- Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, Wisconsin 54702, United States
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12
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Stockdale DP, Titunick MB, Biegler JM, Reed JL, Hartung AM, Wiemer DF, McLaughlin PJ, Neighbors JD. Selective opioid growth factor receptor antagonists based on a stilbene isostere. Bioorg Med Chem 2017; 25:4464-4474. [PMID: 28693915 PMCID: PMC5567982 DOI: 10.1016/j.bmc.2017.06.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/13/2017] [Accepted: 06/21/2017] [Indexed: 02/01/2023]
Abstract
As part of an ongoing drug development effort aimed at selective opioid receptor ligands based on the pawhuskin natural products we have synthesized a small set of amide isosteres. These amides were centered on lead compounds which are selective antagonists for the delta and kappa opioid receptors. The amide isomers revealed here show dramatically different activity from the parent stilbene compounds. Three of the isomers synthesized showed antagonist activity for the opioid growth factor (OGF)/opioid growth factor receptor (OGFR) axis which is involved in cellular and organ growth control. This cellular signaling mechanism is targeted by "low-dose" naltrexone therapy which is being tested clinically for multiple sclerosis, Crohn's disease, cancer, and wound healing disorders. The compounds described here are the first selective small molecule ligands for the OGF/OGFR system and will serve as important leads and probes for further study.
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Affiliation(s)
- David P Stockdale
- Department of Chemistry, The University of Iowa, Iowa City, IA 52242-1294, United States
| | - Michelle B Titunick
- Department of Neural and Behavioral Sciences, Pennsylvania State University College of Medicine, Hershey, PA 17033, United States
| | - Jessica M Biegler
- Department of Pharmacology and Medicine, Pennsylvania State University College of Medicine, Hershey, PA 17033, United States; Pennsylvania State University Cancer Institute, Hershey, PA 17033, United States
| | - Jessie L Reed
- Department of Pharmacology and Medicine, Pennsylvania State University College of Medicine, Hershey, PA 17033, United States; Pennsylvania State University Cancer Institute, Hershey, PA 17033, United States
| | - Alyssa M Hartung
- Department of Chemistry, The University of Iowa, Iowa City, IA 52242-1294, United States
| | - David F Wiemer
- Department of Chemistry, The University of Iowa, Iowa City, IA 52242-1294, United States
| | - Patricia J McLaughlin
- Department of Neural and Behavioral Sciences, Pennsylvania State University College of Medicine, Hershey, PA 17033, United States; Pennsylvania State University Cancer Institute, Hershey, PA 17033, United States
| | - Jeffrey D Neighbors
- Department of Pharmacology and Medicine, Pennsylvania State University College of Medicine, Hershey, PA 17033, United States; Pennsylvania State University Cancer Institute, Hershey, PA 17033, United States.
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Synthesis of New (E)-2-(1 H-Indole-3-ylcarbonyl)-3-heteroaryl-acrylonitriles via Microwave-Assisted Knoevenagel Condensation. J CHEM-NY 2017. [DOI: 10.1155/2017/8418930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Given the broad spectrum of biological uses of heteroaryl-acrylonitrile derivatives, it is necessary to find simple methods to synthesize and diversify this family of compounds. We report a stereoselective synthesis of a series of new (E)-2-(1H-indole-3-ylcarbonyl)-3-heteroaryl-acrylonitriles (3a–3i) obtained from 3-(cyanoacetyl)indole and heteroaryl-aldehydes under microwave-assisted Knoevenagel reaction at 300 W of potency and 100°C. The desired derivatives (3a–3i) were obtained with variable yields (30–94%) and time reactions (8–90 min). All the heteroaryl-acrylonitriles were characterized by physicoanalytical techniques such IR, 1H, 13C NMR, and electrospray mass spectrometry.
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Chang YC, Lin CW, Yu CC, Wang BY, Huang YH, Hsieh YC, Kuo YL, Chang WW. Resveratrol suppresses myofibroblast activity of human buccal mucosal fibroblasts through the epigenetic inhibition of ZEB1 expression. Oncotarget 2016; 7:12137-49. [PMID: 26934322 PMCID: PMC4914274 DOI: 10.18632/oncotarget.7763] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 02/18/2016] [Indexed: 01/18/2023] Open
Abstract
Oral submucous fibrosis (OSF) is a precancerous condition of the oral mucosa without specific therapeutic drugs. We previously demonstrated that the zinc finger E-box binding homeobox 1 (ZEB1) plays a pathogenic role in the induction of the myofibroblast activity of buccal mucosal fibroblasts (BMFs) and contributes to the pathogenesis of OSF. Resveratrol is a natural polyphenolic flavonoid with anti-fibrosis activity in various tissues and has the capability to inhibit ZEB1 in oral cancer cells. We examined the effect of resveratrol on the myofibroblast activity of human primary fibrotic BMFs (fBMFs) derived from OSF tissues. With the collagen contraction assay, resveratrol displayed anti-myofibroblast activity in three fBMF lines. Resveratrol also inhibited the expression of fibrogenic genes at the mRNA and protein levels in a dose- and time-dependent manner. The downregulation of ZEB1 in fBMFs by resveratrol was mediated by epigenetic mechanisms, such as the upregulated expression of miR-200c and the enhancer of zeste homolog 2 (EZH2), as well as the trimethylated lysine 27 of histone H3 (H3K27me3). Resveratrol also increased the binding of H3K27me3 to the ZEB1 promoter. The knockdown of EZH2 in fBMFs caused the upregulation of ZEB1 and suppressed the inhibitory effect of resveratrol. Furthermore, the reversed expression pattern between EZH2 and ZEB1 was observed in 6/8 OSF tissues with twofold upregulation of ZEB1 expression compared with the adjacent normal mucosa. In conclusion, our data suggest that resveratrol epigenetically inhibits ZEB1 expression to suppress the myofibroblast activity of fBMFs and may serve as a dietary supplement for OSF patients.
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Affiliation(s)
- Yu-Chao Chang
- 1 School of Dentistry, Chung Shan Medical University, Taichung, Taiwan,2 Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Cheng-Wei Lin
- 3 School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan
| | - Cheng-Chia Yu
- 1 School of Dentistry, Chung Shan Medical University, Taichung, Taiwan,2 Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan,4 Institute of Oral Science, Chung Shan Medical University, Taichung, Taiwan
| | - Bing-Yen Wang
- 5 Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan,6 Division of Throacic Surgery, Department of Surgery, Changhua Christian Hospital, Changhua County, Taiwan,7 School of Medicine, National Yang-Ming University, Taipei City, Taiwan
| | - Yu-Hao Huang
- 3 School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan
| | - Yang-Chih Hsieh
- 3 School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan
| | - Yu-Liang Kuo
- 8 School of Medical Imaging and Radiological Sciences, Chung Shan Medical University, Taichung, Taiwan,9 Department of Medical Imaging, Chung Shan Medical University Hospital, Taichung City, Taiwan
| | - Wen-Wei Chang
- 3 School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan,10 Department of Medical Research, Chung Shan Medical University Hospital, Taichung City, Taiwan
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Novel Promising Estrogenic Receptor Modulators: Cytotoxic and Estrogenic Activity of Benzanilides and Dithiobenzanilides. PLoS One 2016; 11:e0145615. [PMID: 26730945 PMCID: PMC4701221 DOI: 10.1371/journal.pone.0145615] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 12/07/2015] [Indexed: 11/24/2022] Open
Abstract
The cytotoxicity of 27 benzanilides and dithiobenzanilides built on a stilbene scaffold and possessing various functional groups in aromatic rings previously described for their spasmolytic properties was assayed on three human cancer cell lines (A549 –lung adenocarcinoma, MCF-7 estrogen dependent breast adenocarcinoma and MDA-MB-231 estrogen independent breast adenocarcinoma) and 2 non-tumorigenic cell lines (CCD39Lu–lung fibroblasts, MCF-12A - breast epithelial). Three compounds (6, 15 and 18) showed selective antiproliferative activity against estrogen dependent MCF-7 cancer cells and their estrogenic activity was further confirmed in MCF-7 transfected with an estrogen receptor reporter plasmid and in HEK239 cells over-expressing the estrogen receptor alpha (ERα). Compound 18 is especially interesting as a potential candidate for therapy since it is highly toxic and selective towards estrogen dependent MCF7 cell lines (IC50 = 5.07 μM versus more than 100 μM for MDA-MB-231) and almost innocuous for normal breast cells (IC50 = 91.46 μM for MCF-12A). Docking studies have shown that compound 18 interacts with the receptor in the same cavity as estradiol although the extra aromatic ring is involved in additional binding interactions with residue W383. The role of W383 and the extended binding mode were confirmed by site-directed mutagenesis.
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Tang H, Duggan S, Richardson PL, Marin V, Warder SE, McLoughlin SM. Target Identification of Compounds from a Cell Viability Phenotypic Screen Using a Bead/Lysate-Based Affinity Capture Platform. ACTA ACUST UNITED AC 2015; 21:201-11. [DOI: 10.1177/1087057115622431] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 11/24/2015] [Indexed: 12/23/2022]
Abstract
The pharmaceutical industry has been continually challenged by dwindling target diversity. To obviate this trend, phenotypic screens have been adopted, complementing target-centric screening approaches. Phenotypic screens identify drug leads using clinically relevant and translatable mechanisms, remaining agnostic to targets. While target anonymity is advantageous early in the drug discovery process, it poses challenges to hit progression, including the development of backup series, retaining desired pharmacology during optimization, discovery of markers, and understanding mechanism-driven toxicity. Consequently, significant effort has been expended to elaborate the targets and mechanisms at work for promising screening hits. Affinity capture is commonly leveraged, where the compounds are linked to beads and targets are abstracted from cell homogenates. This technique has proven effective for identifying targets of kinase, PARP, and HDAC inhibitors, and examples of new targets have been reported. Herein, a three-pronged approach to target deconvolution by affinity capture is described, including the implementation of a uniqueness index that helps discriminate between bona fide targets and background. The effectiveness of this approach is demonstrated using characterized compounds that act on known and noncanonical target classes. The platform is subsequently applied to phenotypic screening hits, identifying candidate targets. The success rate of bead-based affinity capture is discussed.
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Affiliation(s)
- Hua Tang
- Target Enabling Science and Technologies, AbbVie, North Chicago, IL, USA
| | - Shannon Duggan
- Drug Metabolism & Pharmacokinetics, AbbVie, North Chicago, IL, USA
| | | | - Violeta Marin
- Discovery Chemistry and Technologies, AbbVie, North Chicago, IL, USA
| | - Scott E. Warder
- Target Enabling Science and Technologies, AbbVie, North Chicago, IL, USA
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Frlan R, Sova M, Gobec S, Stavber G, Časar Z. Cobalt-Catalyzed Cross-Coupling of Grignards with Allylic and Vinylic Bromides: Use of Sarcosine as a Natural Ligand. J Org Chem 2015; 80:7803-9. [DOI: 10.1021/acs.joc.5b01156] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Rok Frlan
- Faculty
of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Matej Sova
- Faculty
of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Stanislav Gobec
- Faculty
of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Gaj Stavber
- API
Development, Organic Synthesis Department, Lek Pharmaceuticals, d.d., Sandoz Development Centre Slovenia, Kolodvorska 27, 1234 Mengeš, Slovenia
| | - Zdenko Časar
- Faculty
of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
- API
Development, Organic Synthesis Department, Lek Pharmaceuticals, d.d., Sandoz Development Centre Slovenia, Kolodvorska 27, 1234 Mengeš, Slovenia
- Global
Portfolio Management API, Sandoz GmbH, Biochemiestrasse 10, 6250 Kundl, Austria
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Inhibition of cancer derived cell lines proliferation by synthesized hydroxylated stilbenes and new ferrocenyl-stilbene analogs. Comparison with resveratrol. Molecules 2014; 19:7850-68. [PMID: 24962390 PMCID: PMC6271691 DOI: 10.3390/molecules19067850] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 05/27/2014] [Accepted: 05/28/2014] [Indexed: 01/06/2023] Open
Abstract
Further advances in understanding the mechanism of action of resveratrol and its application require new analogs to identify the structural determinants for the cell proliferation inhibition potency. Therefore, we synthesized new trans-resveratrol derivatives by using the Wittig and Heck methods, thus modifying the hydroxylation and methoxylation patterns of the parent molecule. Moreover, we also synthesized new ferrocenylstilbene analogs by using an original protective group in the Wittig procedure. By performing cell proliferation assays we observed that the resveratrol derivatives show inhibition on the human colorectal tumor SW480 cell line. On the other hand, cell viability/cytotoxicity assays showed a weaker effects on the human hepatoblastoma HepG2 cell line. Importantly, the lack of effect on non-tumor cells (IEC18 intestinal epithelium cells) demonstrates the selectivity of these molecules for cancer cells. Here, we show that the numbers and positions of hydroxy and methoxy groups are crucial for the inhibition efficacy. In addition, the presence of at least one phenolic group is essential for the antitumoral activity. Moreover, in the series of ferrocenylstilbene analogs, the presence of a hidden phenolic function allows for a better solubilization in the cellular environment and significantly increases the antitumoral activity.
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Acerson MJ, Andrus MB. Selective esterification of the polyphenol resveratrol at the 4′-position. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.12.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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