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Abstract
Major advances in scientific discovery and insights that stem from the development and use of new techniques and models can bring remarkable progress to conventional toxicology. Although animal testing is still considered as the "gold standard" in traditional toxicity testing, there is a necessity for shift from animal testing to alternative methods regarding the drug safety testing owing to the emerging state-of-art techniques and the proposal of 3Rs (replace, reduce, and refine) towards animal welfare. This review describes some recent research methods in drug discovery toxicology, including in vitro cell and organ-on-a-chip, imaging systems, model organisms (C. elegans, Danio rerio, and Drosophila melanogaster), and toxicogenomics in modern toxicology testing.
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Affiliation(s)
- Bowen Tang
- PTC Therapeutics Inc, South Plainfield, NJ, USA
| | - Vijay More
- PTC Therapeutics Inc, South Plainfield, NJ, USA
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2
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Das BC, Yadav P, Das S, Saito M, Evans T. Development of a New Methodology for Dearomative Borylation of Coumarins and Chromenes and Its Applications to Synthesize Boron-Containing Retinoids. Molecules 2023; 28:1052. [PMID: 36770721 PMCID: PMC9921500 DOI: 10.3390/molecules28031052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
Dearomative borylation of coumarins and chromenes via conjugate addition represents a relatively unexplored and challenging task. To address this issue, herein, we report a new and general copper (I) catalyzed dearomative borylation process to synthesize boron-containing oxacycles. In this report, the borylation of coumarins, chromones, and chromenes comprising functional groups, such as esters, nitriles, carbonyls, and amides, has been achieved. In addition, the method generates different classes of potential boron-based retinoids, including the ones with oxadiazole and anthocyanin motifs. The borylated oxacycles can serve as suitable intermediates to generate a library of compounds.
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Affiliation(s)
- Bhaskar C. Das
- Arnold and Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - Pratik Yadav
- Arnold and Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
| | - Sasmita Das
- Arnold and Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
| | - Mariko Saito
- Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - Todd Evans
- Department of Surgery, Weill Cornell Medical College of Cornell University, New York, NY 10065, USA
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3
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Synthetic strategies and pharmacological activities of chromene and its derivatives: An overview. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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4
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Das BC, Nandwana NK, Ojha DP, Das S, Evans T. Synthesis of a boron-containing amidoxime reagent and its application to synthesize functionalized oxadiazole and quinazolinone derivatives. Tetrahedron Lett 2022; 92:153657. [PMID: 35935920 PMCID: PMC9348647 DOI: 10.1016/j.tetlet.2022.153657] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Herein, we report the design, synthesis and application of a borylated amidoxime reagent for the direct synthesis of functionalized oxadiazole and quinazolinone derivatives. This reagent exhibits broad synthetic utility to obtain a variety of biologically relevant drug-like molecules. It can be easily prepared at large scale from relatively inexpensive reagents, and can undergo facile transformations to obtain target compounds. The developed amidoxime reagent was synthesized from 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile and hydroxyl amine hydrochloride using N,N-diisopropylethylamine as a base in ethanol under reflux conditions. Overall advantages include a metal-free route to boronated oxadiazoles, quinazolinone derivatives, and restriction of the multistep sequences. Importantly, the boron-rich pharmacophore derived compounds were obtained through an efficient and inexpensive strategy.
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Affiliation(s)
- Bhaskar C Das
- Arnold and Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY-11201, USA
- Departments of Medicine and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Surgery, Weill Cornell Medical College of Cornell University, New York, NY 10065, USA
| | - Nitesh K Nandwana
- Arnold and Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY-11201, USA
- Departments of Medicine and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Devi P Ojha
- Departments of Medicine and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sasmita Das
- Departments of Medicine and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Todd Evans
- Department of Surgery, Weill Cornell Medical College of Cornell University, New York, NY 10065, USA
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5
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Mogharabi-Manzari M, Ghahremani MH, Sedaghat T, Shayan F, Faramarzi MA. A Laccase Heterogeneous Magnetic Fibrous Silica-Based Biocatalyst for Green and One-Pot Cascade Synthesis of Chromene Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801784] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Mehdi Mogharabi-Manzari
- Department of Pharmaceutical Biotechnology; Faculty of Pharmacy, and Biotechnology Research Center; Tehran University of Medical Sciences; P.O. Box 14155-6451 1417614411 Tehran Iran
- The Institute of Pharmaceutical Sciences; Tehran University of Medical Sciences; 1417614411 Tehran Iran
| | - Mohammad Hossein Ghahremani
- Department of Pharmacology and Toxicology; Faculty of Pharmacy; Tehran University of Medical Sciences; 1417614411 Tehran Iran
| | - Tabassom Sedaghat
- Department of Pharmaceutical Biotechnology; Faculty of Pharmacy, and Biotechnology Research Center; Tehran University of Medical Sciences; P.O. Box 14155-6451 1417614411 Tehran Iran
| | - Fatemeh Shayan
- Department of Pharmaceutical Biotechnology; Faculty of Pharmacy, and Biotechnology Research Center; Tehran University of Medical Sciences; P.O. Box 14155-6451 1417614411 Tehran Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology; Faculty of Pharmacy, and Biotechnology Research Center; Tehran University of Medical Sciences; P.O. Box 14155-6451 1417614411 Tehran Iran
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Samat N, Ng MF, Ruslan NF, Okuda KS, Tan PJ, Patel V. Interference Potential of Tannins and Chlorophylls in Zebrafish Phenotypic-Based Assays. Assay Drug Dev Technol 2018; 16:408-419. [PMID: 29985634 DOI: 10.1089/adt.2017.833] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Natural products are prolific producers of diverse chemical scaffolds, which have yielded several clinically useful drugs. However, the complex features of natural products present challenges for identifying bioactive molecules using high-throughput screens. For most assays, measured endpoints are either colorimetric or luminescence based. Thus, the presence of the major metabolites, tannins, and chlorophylls, in natural products could potentially interfere with these measurements to give either false-positive or false-negative hits. In this context, zebrafish phenotypic assays provide an alternative approach to bioprospect naturally occurring bioactive compounds. Whether tannins and/or chlorophylls interfere in zebrafish phenotypic assays, is unclear. In this study, we evaluated the interference potential of tannins and chlorophylls against efficacy of known small-molecule inhibitors that are known to cause phenotypic abnormalities in developing zebrafish embryos. First, we fractionated tannin-enriched fraction (TEF) and chlorophyll-enriched fraction (CEF) from Camellia sinensis and cotreated them with PD0325901 [mitogen-activated protein kinase-kinase (MEK) inhibitor] and sunitinib malate (SM; anti-[lymph]angiogenic drug). While TEF and CEF did not interfere with phenotypic or molecular endpoints of PD0325901, TEF at 100 μg/mL partially masked the antiangiogenic effect of SM. On the other hand, CEF (100 μg/mL) was toxic when treated up to 6 dpf. Furthermore, CEF at 100 μg/mL potentially enhanced the activity of γ-secretase inhibitors, resulting in toxicity of treated embryos. Our study provides evidence that the presence of tannin and/or chlorophyll in natural products do interfere with zebrafish phenotype assays used for identifying potential hits. However, this may be target/assay dependent and thus requiring additional optimization steps to assess interference potential of tannins and chlorophylls before performing any screening assay.
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Affiliation(s)
| | - Mei Fong Ng
- Cancer Research Malaysia , Subang Jaya, Selangor, Malaysia
| | | | | | - Pei Jean Tan
- Cancer Research Malaysia , Subang Jaya, Selangor, Malaysia
| | - Vyomesh Patel
- Cancer Research Malaysia , Subang Jaya, Selangor, Malaysia
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7
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Akgul A, Al-Janabi N, Das B, Lawrence M, Karsi A. Small molecules targeting LapB protein prevent Listeria attachment to catfish muscle. PLoS One 2017; 12:e0189809. [PMID: 29253892 PMCID: PMC5734760 DOI: 10.1371/journal.pone.0189809] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 12/01/2017] [Indexed: 11/18/2022] Open
Abstract
Listeria monocytogenes is a Gram-positive foodborne pathogen and the causative agent of listeriosis. L. monocytogenes lapB gene encodes a cell wall surface anchor protein, and mutation of this gene causes Listeria attenuation in mice. In this work, the potential role of Listeria LapB protein in catfish fillet attachment was investigated. To achieve this, boron-based small molecules designed to interfere with the active site of the L. monocytogenes LapB protein were developed, and their ability to prevent L. monocytogenes attachment to fish fillet was tested. Results indicated that seven out of nine different small molecules were effective in reducing the Listeria attachment to catfish fillets. Of these, three small molecules (SM3, SM5, and SM7) were highly effective in blocking Listeria attachment to catfish fillets. This study suggests an alternative strategy for reduction of L. monocytogenes contamination in fresh and frozen fish products.
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Affiliation(s)
- Ali Akgul
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, United States of America
| | - Nawar Al-Janabi
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, United States of America
| | - Bhaskar Das
- Departments of Medicine and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Mark Lawrence
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, United States of America
| | - Attila Karsi
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, United States of America
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8
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K. RR, D. KS, N. R, G. SD, Y. P, N. JB, C. GK, Banda N. Synthesis of Novel Diverse Methoxybenzenes-substituted 2 H/4 H-chromene Derivatives in the Presence of InBr 3(5 mol%) and their Cytotoxic Activity. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ratnakar Reddy K.
- Fluoroorganic Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Krishna Swaroop D.
- Fluoroorganic Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Ravikumar N.
- Fluoroorganic Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Sravanthi Devi G.
- Department of Medicinal Chemistry; NIPER; Balanagar Hyderabad 500037 India
| | - Poornachandra Y.
- Medicinal Chemistry and Pharmacology Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Jagadeesh Babu N.
- Laboratory of X-ray Crystallography; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Ganesh Kumar C.
- Medicinal Chemistry and Pharmacology Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Narsaiah Banda
- Fluoroorganic Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
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9
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Wiley DS, Redfield SE, Zon LI. Chemical screening in zebrafish for novel biological and therapeutic discovery. Methods Cell Biol 2016; 138:651-679. [PMID: 28129862 DOI: 10.1016/bs.mcb.2016.10.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Zebrafish chemical screening allows for an in vivo assessment of small molecule modulation of biological processes. Compound toxicities, chemical alterations by metabolism, pharmacokinetic and pharmacodynamic properties, and modulation of cell niches can be studied with this method. Furthermore, zebrafish screening is straightforward and cost effective. Zebrafish provide an invaluable platform for novel therapeutic discovery through chemical screening.
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Affiliation(s)
- D S Wiley
- Stem Cell Program and Division of Hematology and Oncology, Childrens' Hospital Boston, Dana-Farber Cancer Institute, Howard Hughes Medical Institute and Harvard Medical School, Boston, MA, United States
| | - S E Redfield
- Stem Cell Program and Division of Hematology and Oncology, Childrens' Hospital Boston, Dana-Farber Cancer Institute, Howard Hughes Medical Institute and Harvard Medical School, Boston, MA, United States
| | - L I Zon
- Stem Cell Program and Division of Hematology and Oncology, Childrens' Hospital Boston, Dana-Farber Cancer Institute, Howard Hughes Medical Institute and Harvard Medical School, Boston, MA, United States
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10
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Yan X, Shen D, Han J, Chen J, Deng H, Shao M, Zhang H, Cao W. l-Proline catalyzed intermolecular cyclization of methyl perfluoroalk-2-ynoates with salicylaldehyde: Synthesis of perfluoroalkylated 2H-chromenes. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Ribeiro Laia FM, Soares MIL, Gomes CSB, Pinho e Melo TMVD. Pericyclic Reactions of Azafulvenium Methides Bearing Internal Dipolarophiles - Synthesis of Chromene and Chromane Derivatives. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403407] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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12
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Padhi B, Reddy DS, Mohapatra DK. Trimethylsilyl Iodide Mediated One-Pot Synthesis of 2-Allyl-2H-chromenes. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403240] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Rennekamp AJ, Peterson RT. 15 years of zebrafish chemical screening. Curr Opin Chem Biol 2014; 24:58-70. [PMID: 25461724 DOI: 10.1016/j.cbpa.2014.10.025] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 10/28/2014] [Accepted: 10/30/2014] [Indexed: 12/13/2022]
Abstract
In 2000, the first chemical screen using living zebrafish in a multi-well plate was reported. Since then, more than 60 additional screens have been published describing whole-organism drug and pathway discovery projects in zebrafish. To investigate the scope of the work reported in the last 14 years and to identify trends in the field, we analyzed the discovery strategies of 64 primary research articles from the literature. We found that zebrafish screens have expanded beyond the use of developmental phenotypes to include behavioral, cardiac, metabolic, proliferative and regenerative endpoints. Additionally, many creative strategies have been used to uncover the mechanisms of action of new small molecules including chemical phenocopy, genetic phenocopy, mutant rescue, and spatial localization strategies.
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Affiliation(s)
- Andrew J Rennekamp
- Cardiovascular Research Center and Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, Charlestown, MA 02129, USA; Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA; Broad Institute, 7 Cambridge Center, Cambridge, MA 02142, USA
| | - Randall T Peterson
- Cardiovascular Research Center and Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, Charlestown, MA 02129, USA; Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA; Broad Institute, 7 Cambridge Center, Cambridge, MA 02142, USA.
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14
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Paul ND, Mandal S, Otte M, Cui X, Zhang XP, de Bruin B. Metalloradical approach to 2H-chromenes. J Am Chem Soc 2014; 136:1090-6. [PMID: 24400781 PMCID: PMC3936204 DOI: 10.1021/ja4111336] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Cobalt(III)-carbene radicals, generated through metalloradical activation of salicyl N-tosylhydrazones by cobalt(II) complexes of porphyrins, readily undergo radical addition to terminal alkynes to produce salicyl-vinyl radical intermediates. Subsequent hydrogen atom transfer (HAT) from the hydroxy group of the salicyl moiety to the vinyl radical leads to the formation of 2H-chromenes. The Co(II)-catalyzed process can tolerate various substitution patterns and produces the corresponding 2H-chromene products in good isolated yields. EPR spectroscopy and radical-trapping experiments with TEMPO are in agreement with the proposed radical mechanism. DFT calculations reveal the formation of the salicyl-vinyl radical intermediate by a metalloradical-mediated process. Unexpectedly, subsequent HAT from the hydroxy moiety to the vinyl radical leads to formation of an o-quinone methide intermediate, which dissociates spontaneously from the cobalt center and easily undergoes an endocyclic, sigmatropic ring-closing reaction to form the final 2H-chromene product.
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Affiliation(s)
- Nanda D. Paul
- Homogeneous Catalysis group, van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Sutanuva Mandal
- Homogeneous Catalysis group, van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Matthias Otte
- Homogeneous Catalysis group, van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Xin Cui
- Department of Chemistry, University of South Florida, Tampa, Florida 33620-5250, United States
| | - X. Peter Zhang
- Department of Chemistry, University of South Florida, Tampa, Florida 33620-5250, United States
| | - Bas de Bruin
- Homogeneous Catalysis group, van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
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15
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Babu PV, Mukherjee S, Gorja DR, Yellanki S, Medisetti R, Kulkarni P, Mukkanti K, Pal M. Zebrafish based strategy for the identification of a potential pharmacophore for apoptosis: a greener CuAAC approach for novel 1,2,3-triazoles derived from mefenamic acid. RSC Adv 2014. [DOI: 10.1039/c3ra46185h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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16
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Morán-Poladura P, Rubio E, González JM. Gold(I)-catalyzed hydroarylation reaction of aryl (3-iodoprop-2-yn-1-yl) ethers: synthesis of 3-iodo-2H-chromene derivatives. Beilstein J Org Chem 2013; 9:2120-8. [PMID: 24204424 PMCID: PMC3817509 DOI: 10.3762/bjoc.9.249] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 09/20/2013] [Indexed: 01/13/2023] Open
Abstract
An efficient entry to the preparation of elusive 4-unsubstituted-3-iodo-2H-chromenes has been accomplished as result of a catalytic cyclization. Thus, upon exposition of [(3-iodoprop-2-yn-1-yl)oxy]arenes to IPrAuNTf2 (3 mol %), in 1,4-dioxane at 100 °C, the desired heterocyclic motif is readily assembled. This process nicely tolerates a variety of functional groups and, interestingly, it is compatible with the presence of strong electron-withdrawing groups attached to the arene. The overall transformation can be termed as a new example of a migratory cycloisomerization and, formally, it involves well-blended 1,2-iodine shift and hydroarylation steps.
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Affiliation(s)
- Pablo Morán-Poladura
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, C/Julián Clavería 8, Oviedo, 33006, Spain
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Reactions of 2-(trifluoromethyl)-2-hydroxy-2H-chromenes with silyl enol ethers promoted by AlCl3. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Basu S, Sachidanandan C. Zebrafish: a multifaceted tool for chemical biologists. Chem Rev 2013; 113:7952-80. [PMID: 23819893 DOI: 10.1021/cr4000013] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Sandeep Basu
- Council of Scientific and Industrial Research-Institute of Genomics & Integrative Biology (CSIR-IGIB) , South Campus, New Delhi 110025, India
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19
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Lakshmi NV, Kiruthika SE, Perumal P. Multicomponent assembly of 2-amino-4-substituted 4H-chromenes using cyclic Michael donors. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0552] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An efficient one-pot synthesis has been disclosed to access a series of 2-amino-4-substituted 4H-chromenes from salicylaldehyde, malononitrile, and a few cyclic nucleophiles using indium trichloride as a catalyst. This methodology affords high yields of products in a shorter reaction time.
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Affiliation(s)
- Neelakandan Vidhya Lakshmi
- Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| | - Selvarangam E. Kiruthika
- Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| | - P.T. Perumal
- Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
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Das BC, Tang XY, Rogler P, Evans T. Design and synthesis of 3,5-disubstituted boron-containing 1,2,4-oxadiazoles as potential combretastatin A-4 (CA-4) analogs. Tetrahedron Lett 2012; 53:3947-3950. [PMID: 24039307 PMCID: PMC3771381 DOI: 10.1016/j.tetlet.2012.02.110] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
We have designed and synthesized a small library of 3,5-disubstituted-1,2,4-oxadiazole containing combretastatin A-4 (CA-4) analogs. Our objective is to increase the efficacy of the CA-4 as an anti-tubulin and antimitotic agent by substituting the cis-alkene bond with one of its bioisosteres, the 1,2,4-oxadiazole ring. We also modified the substituents attached to both of the phenyl rings (ring A and B in Fig. 1) of CA-4 for the purpose of diversifying our analogs based on SAR. These compounds were synthesized via a coupling reaction between an amidoxime and a carboxylic acid in DMF solvent, with HOBt as a base, and utilizing EDCI as a coupling reagent. Using this protocol, we synthesized a small library of 10 compounds with moderate to good yields. A detailed biological study is currently undergoing in our laboratory to evaluate the activity of these compounds.
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Affiliation(s)
- Bhaskar C. Das
- Department of Surgery, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
| | - Xiang-Ying Tang
- Department of Developmental & Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Patrick Rogler
- Department of Developmental & Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Todd Evans
- Department of Surgery, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
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21
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Sipes NS, Padilla S, Knudsen TB. Zebrafish: as an integrative model for twenty-first century toxicity testing. ACTA ACUST UNITED AC 2012; 93:256-67. [PMID: 21932434 DOI: 10.1002/bdrc.20214] [Citation(s) in RCA: 198] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The zebrafish embryo is a useful small model for investigating vertebrate development because of its transparency, low cost, transgenic and morpholino capabilities, conservation of cell signaling, and concordance with mammalian developmental phenotypes. From these advantages, the zebrafish embryo has been considered as an alternative model for traditional in vivo developmental toxicity screening. The use of this organism in conjunction with traditional in vivo developmental toxicity testing has the potential to reduce cost and increase throughput of testing the chemical universe, prioritize chemicals for targeted toxicity testing, generate predictive models of developmental toxicants, and elucidate mechanisms and adverse outcome pathways for abnormal development. This review gives an overview of the zebrafish embryo for pre dictive toxicology and 21st century toxicity testing. Developmental eye defects were selected as an example to evaluate data from the U.S. Environmental Protection Agency's ToxCast program comparing responses in zebrafish embryos with those from pregnant rats and rabbits for a subset of 24 environmental chemicals across >600 in vitro assay targets. Cross-species comparisons implied a common basis for biological pathways associated with neuronal defects, extracellular matrix remodeling, and mitotic arrest.
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Affiliation(s)
- Nisha S Sipes
- National Center for Computational Toxicology, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA.
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22
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Pavan MP, Reddy MN, Kumar NNB, Swamy KCK. Base catalysed synthesis of thiochromans and azo-linked chromenes using allenylphosphonates. Org Biomol Chem 2012; 10:8113-8. [DOI: 10.1039/c2ob26285a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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23
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Novel retinoic acid receptor alpha agonists for treatment of kidney disease. PLoS One 2011; 6:e27945. [PMID: 22125642 PMCID: PMC3220717 DOI: 10.1371/journal.pone.0027945] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Accepted: 10/28/2011] [Indexed: 12/12/2022] Open
Abstract
Development of pharmacologic agents that protect podocytes from injury is a critical strategy for the treatment of kidney glomerular diseases. Retinoic acid reduces proteinuria and glomerulosclerosis in multiple animal models of kidney diseases. However, clinical studies are limited because of significant side effects of retinoic acid. Animal studies suggest that all trans retinoic acid (ATRA) attenuates proteinuria by protecting podocytes from injury. The physiological actions of ATRA are mediated by binding to all three isoforms of the nuclear retinoic acid receptors (RARs): RARα, RARβ, and RARγ. We have previously shown that ATRA exerts its renal protective effects mainly through the agonism of RARα. Here, we designed and synthesized a novel boron-containing derivative of the RARα-specific agonist Am580. This new derivative, BD4, binds to RARα receptor specifically and is predicted to have less toxicity based on its structure. We confirmed experimentally that BD4 binds to RARα with a higher affinity and exhibits less cellular toxicity than Am580 and ATRA. BD4 induces the expression of podocyte differentiation markers (synaptopodin, nephrin, and WT-1) in cultured podocytes. Finally, we confirmed that BD4 reduces proteinuria and improves kidney injury in HIV-1 transgenic mice, a model for HIV-associated nephropathy (HIVAN). Mice treated with BD4 did not develop any obvious toxicity or side effect. Our data suggest that BD4 is a novel RARα agonist, which could be used as a potential therapy for patients with kidney disease such as HIVAN.
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Design, synthesis and biological study of pinacolyl boronate-substituted stilbenes as novel lipogenic inhibitors. Bioorg Med Chem Lett 2011; 21:5638-41. [PMID: 21798740 DOI: 10.1016/j.bmcl.2011.05.124] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Revised: 05/29/2011] [Accepted: 05/31/2011] [Indexed: 11/20/2022]
Abstract
A pilot library of novel 4,4,5,5-tetramethyl-2-(4-substitutedstyrylphenyl)-1,3,2 dioxaborolane derivatives has been synthesized. 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaboratophenyl)-methyl triphenylphosphonium bromide 3 was treated with various aldehydes in the presence of 3 equiv of (t)BuONa in DMF, and stirred at room temperature for 4-6h to yield the corresponding boron-containing stilbene derivatives in 71-94% yields. Several of them, including BF102 and BF175, have the lipogenesis inhibitory effect by suppressing lipogenic gene expression in mammalian hepatocytes. Further, BF102 also inhibits cholesterol biosynthesis by suppressing HMG-CoA reductase gene expression in hepatocytes. Interestingly, our preliminary in vivo data suggests that BF102 has no significant toxicity in mice at the highest possible dose we can administered. Thus, BF102 is a potential lead for the next generation of lipid-lowering drugs.
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Tan JL, Zon LI. Chemical screening in zebrafish for novel biological and therapeutic discovery. Methods Cell Biol 2011; 105:493-516. [PMID: 21951544 DOI: 10.1016/b978-0-12-381320-6.00021-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Zebrafish chemical screening allows for an in vivo assessment of small molecule modulation of biological processes. Compound toxicities, chemical alterations by metabolism, pharmacokinetic and pharmacodynamic properties, and modulation of cell niches can be studied with this method. Furthermore, zebrafish screening is straightforward and cost-effective. Zebrafish provide an invaluable platform for novel therapeutic discovery through chemical screening.
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Affiliation(s)
- Justin L Tan
- Stem Cell Program and Division of Hematology and Oncology, Children’s Hospital Boston, Dana-Farber Cancer Institute, Howard Hughes Medical Institute and Harvard Medical School, Boston, Massachusetts, USA
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Abstract
The zebrafish is proving to be highly amenable to in vivo small molecule screening. With a growing number of screens successfully completed, a rich interface is being created between disciplines that have historically used zebrafish (e.g., embryology and genetics) and disciplines focused on small molecules (e.g., chemistry and pharmacology). Navigating this interface requires consideration of the unique demands of conducting high-throughput screening in vivo. In this chapter, we discuss design elements of successful zebrafish screens, established screening methods, and approaches for mechanism of action studies following discovery of novel small molecules. These methods are enabling the zebrafish to have an increasingly positive impact on biomedical research and drug development.
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Affiliation(s)
- Randall T Peterson
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts 02129, USA
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Duda B, Tverdomed SN, Röschenthaler GV. Synthesis of 2-perfluoroalkyl 4H- and 2H-chromenylphosphonates mediated by amines and phosphines. J Org Chem 2010; 76:71-9. [PMID: 21121658 DOI: 10.1021/jo101913u] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient synthesis of 2-perfluoroalkyl 4H-chromen-3-ylphosphonates 4a-i (R(F) = CF(3)) and 5a-i (R(F) = C(2)F(5)) has been accomplished via regioselective cycloaddition of 2-hydroxybenzaldehydes to diethyl 3,3,3-trifluoropropyn-1-yl- and diethyl 3,3,4,4,4-pentafluorobutyn-1-ylphosphonate, using trialkyl amines or phosphines as mediators. 2H-Chromen-3-ylphosphonates 6a-i were regioselectively obtained in the presence of triphenylphosphine. A convenient method for the isomerization of 4H-chromen-3-ylphosphonates into 2H-chromen-3-ylphosphonates 6a-i (R(F) = CF(3)) and 7a-i (R(F) = C(2)F(5)) was established.
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Affiliation(s)
- Blazej Duda
- School of Engineering and Science, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
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Taylor KL, Grant NJ, Temperley ND, Patton EE. Small molecule screening in zebrafish: an in vivo approach to identifying new chemical tools and drug leads. Cell Commun Signal 2010; 8:11. [PMID: 20540792 PMCID: PMC2912314 DOI: 10.1186/1478-811x-8-11] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Accepted: 06/12/2010] [Indexed: 12/19/2022] Open
Abstract
In the past two decades, zebrafish genetic screens have identified a wealth of mutations that have been essential to the understanding of development and disease biology. More recently, chemical screens in zebrafish have identified small molecules that can modulate specific developmental and behavioural processes. Zebrafish are a unique vertebrate system in which to study chemical genetic systems, identify drug leads, and explore new applications for known drugs. Here, we discuss some of the advantages of using zebrafish in chemical biology, and describe some important and creative examples of small molecule screening, drug discovery and target identification.
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Affiliation(s)
- Kerrie L Taylor
- MRC Human Genetics Unit and the Division of Cancer Research, Institute of Genetics and Molecular Medicine, The University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XR, UK.
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Das BC, Mohapatra S, Campbell PD, Nayak S, Mahalingam SM, Evans T. Synthesis of function-oriented 2-phenyl-2H-chromene derivatives using L-pipecolinic acid and substituted guanidine organocatalysts. Tetrahedron Lett 2010; 51:2567-2570. [PMID: 21785516 PMCID: PMC3140427 DOI: 10.1016/j.tetlet.2010.02.143] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Organocatalytic domino oxa-Michael/aldol reactions between salicylaldehyde with electron deficient olefins are presented. We screened guanidine, 1,1,3,3-tetramethylguanidine (TMG) and L-pipecolinic acid as organocatalysts for this transformation. 3-Substituted 2-phenyl-2H-chromene derivatives are synthesized with high yields and with poor enantioselectivity (5-17% ee) using L-pipecolinic acid while TMG works well with cinnamaldehyde without using co-catalyst. These 3-substituted-2-phenyl-2H-chromene derivatives are further derivatized to synthesize triazole and biotin-containing chromene derivatives, to facilitate purification of protein targets.
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Affiliation(s)
- Bhaskar C. Das
- Department of Nuclear Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Seetaram Mohapatra
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Philip D. Campbell
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Sabita Nayak
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | | | - Todd Evans
- Department of Surgery, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
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Liu Y, Qian J, Lou S, Zhu J, Xu Z. Gold(III)-Catalyzed Tandem Reaction of Ketones with Phenols: Efficient and Highly Selective Synthesis of Functionalized 4H-Chromenes. J Org Chem 2010; 75:1309-12. [DOI: 10.1021/jo902619x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yunkui Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Repubilc of China
| | - Jianqiang Qian
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Repubilc of China
| | - Shaojie Lou
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Repubilc of China
| | - Jie Zhu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Repubilc of China
| | - Zhenyuan Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Repubilc of China
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Das BC, Mahalingam SM, Evans T. Design and synthesis of novel pinacolylboronate containing combretastatin 'antimitotic agent' analogues. Tetrahedron Lett 2009; 50:3031-3034. [PMID: 20037629 PMCID: PMC2791373 DOI: 10.1016/j.tetlet.2009.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We developed a procedure to synthesize pinacolyl boronate containing stilbene derivatives and used this procedure to synthesize boron-containing combretastatin analogues. The key step involves the Wittig reaction of the ylide 4-(4,4,5,5-tetramethyl-1,3,2-dioxaboratophenyl)-methyl triphenylphosphonium bromide 11 with 3,4,5-trimethoxy benzaldehyde in the presence of (t)BuONa in DMF, providing 88% yield. We are now in a position to evaluate the biological activity of these derivatives as modulators of TGF-beta signaling pathways.
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Affiliation(s)
- Bhaskar C. Das
- Department of Nuclear Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | | | - Todd Evans
- Department of Surgery, Weill Cornell Medical College, Cornell University, New York, NY 10021, USA
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