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Hanessian S. My 50-Plus Years of Academic Research Collaborations with Industry. A Retrospective. J Org Chem 2024. [PMID: 38865159 DOI: 10.1021/acs.joc.4c00652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
A retrospective is presented highlighting the synthesis of selected "first-in-kind" natural products, their synthetic analogues, structure elucidations, and rationally designed bioactive synthetic compounds that were accomplished because of collaborations with past and present pharmaceutical and agrochemical companies. Medicinal chemistry projects involving structure-based design exploiting cocrystal structures of small molecules with biologically relevant enzymes, receptors, and bacterial ribosomes with synthetic small molecules leading to marketed products, clinical candidates, and novel drug prototypes were realized in collaboration. Personal reflections, historical insights, behind the scenes stories from various long-term projects are shared in this retrospective article.
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Affiliation(s)
- Stephen Hanessian
- Department of Chemistry, Université de Montréal, P.O. Box 6128, Succ. Centre-ville, Montréal, Québec, Canada H3C 3J7
- Department of Pharmaceutical Sciences, University of California, Irvine, California 91266, United States
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2
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Castro-Falcón G, Straetener J, Bornikoel J, Reimer D, Purdy TN, Berscheid A, Schempp FM, Liu DY, Linington RG, Brötz-Oesterhelt H, Hughes CC. Antibacterial Marinopyrroles and Pseudilins Act as Protonophores. ACS Chem Biol 2024; 19:743-752. [PMID: 38377384 PMCID: PMC10949930 DOI: 10.1021/acschembio.3c00773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 12/27/2023] [Indexed: 02/22/2024]
Abstract
Elucidating the mechanism of action (MoA) of antibacterial natural products is crucial to evaluating their potential as novel antibiotics. Marinopyrroles, pentachloropseudilin, and pentabromopseudilin are densely halogenated, hybrid pyrrole-phenol natural products with potent activity against Gram-positive bacterial pathogens like Staphylococcus aureus. However, the exact way they exert this antibacterial activity has not been established. In this study, we explore their structure-activity relationship, determine their spatial location in bacterial cells, and investigate their MoA. We show that the natural products share a common MoA based on membrane depolarization and dissipation of the proton motive force (PMF) that is essential for cell viability. The compounds show potent protonophore activity but do not appear to destroy the integrity of the cytoplasmic membrane via the formation of larger pores or interfere with the stability of the peptidoglycan sacculus. Thus, our current model for the antibacterial MoA of marinopyrrole, pentachloropseudilin, and pentabromopseudilin stipulates that the acidic compounds insert into the membrane and transport protons inside the cell. This MoA may explain many of the deleterious biological effects in mammalian cells, plants, phytoplankton, viruses, and protozoans that have been reported for these compounds.
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Affiliation(s)
- Gabriel Castro-Falcón
- Center
for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, California 92093, United States
| | - Jan Straetener
- Department
of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology
and Infection Medicine, University of Tübingen, Tübingen 72076, Germany
| | - Jan Bornikoel
- Department
of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology
and Infection Medicine, University of Tübingen, Tübingen 72076, Germany
| | - Daniela Reimer
- Center
for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, California 92093, United States
| | - Trevor N. Purdy
- Center
for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, California 92093, United States
| | - Anne Berscheid
- Department
of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology
and Infection Medicine, University of Tübingen, Tübingen 72076, Germany
| | - Florence M. Schempp
- Center
for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, California 92093, United States
| | - Dennis Y. Liu
- Department
of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Roger G. Linington
- Department
of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Heike Brötz-Oesterhelt
- Department
of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology
and Infection Medicine, University of Tübingen, Tübingen 72076, Germany
- Cluster
of Excellence EXC 2124: Controlling Microbes to Fight Infection, University of Tübingen, Tübingen 72076, Germany
- German
Center for Infection Research, Partner Site Tübingen, Tübingen 72076, Germany
| | - Chambers C. Hughes
- Center
for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, California 92093, United States
- Department
of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology
and Infection Medicine, University of Tübingen, Tübingen 72076, Germany
- Cluster
of Excellence EXC 2124: Controlling Microbes to Fight Infection, University of Tübingen, Tübingen 72076, Germany
- German
Center for Infection Research, Partner Site Tübingen, Tübingen 72076, Germany
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3
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Wang J, Wu W, Zhou Y, Han M, Zhou X, Sun Y, Zhang A. Design, synthesis and activity evaluation of pseudilin analogs against cyanobacteria as IspD inhibitors. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 199:105769. [PMID: 38458678 DOI: 10.1016/j.pestbp.2024.105769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 03/10/2024]
Abstract
The discovery of safe, effective, and selective chemical algicides is the stringent need for the algicides development, and it is also one of the effective routes to control cyanobacteria harmful algal blooms and to meet the higher requirements of environmental and ecological. In this work, a series of novel bromo-N-phenyl-5-o-hydroxyphenylpyrazole-3-carboxyamides were rationally designed as pseudilin analogs by bioisosteric replacement and molecular hybridization strategies, in which the pyrrole unit of pseudilin was replaced with pyrazole and further combined with the dominant structural fragments of algicide diuron. The synthesis was carried out by a facile four-step routeincluding cyclization, amidation, transanulation, and halogenation. The biological activity evaluation on AtIspD, EcIspD, Synechocystis sp. PCC6803 and Microcystis aeruginosa FACHB905 revealed that most compounds had good EcIspD and excellent cyanobacteria inhibitory activity. In particular, compound 6bb exhibited potent algicidal activity against PCC6803 and FACHB905 with EC50 = 1.28 μM and 0.37 μM, respectively, 1.4-fold and 4.0-fold enhancement compared to copper sulfate (EC50 = 1.79 and 1.49 μM, respectively), and it also showed the best inhibitory activity of EcIspD. The binding of 6bb to EcIspD was explored by molecular docking, and it was confirmed that 6bb could bind to the EcIspD active site. Compound 6bb was proven to be a potential structure for the further development of novel algicides that targets IspD in the MEP pathway.
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Affiliation(s)
- Jili Wang
- College of Chemical and Environmental engineering, Hanjiang Normal University, Shiyan 442000, China
| | - Wenhai Wu
- College of Chemical and Environmental engineering, Hanjiang Normal University, Shiyan 442000, China
| | - Yaqing Zhou
- College of Chemical and Environmental engineering, Hanjiang Normal University, Shiyan 442000, China
| | - Mengying Han
- National Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Xin Zhou
- College of Chemical and Environmental engineering, Hanjiang Normal University, Shiyan 442000, China
| | - Yong Sun
- College of Chemical and Environmental engineering, Hanjiang Normal University, Shiyan 442000, China.
| | - Aidong Zhang
- National Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan 430079, China.
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4
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Choudhary S, Gayyur, Ghosh N. Cu(II)-catalyzed [4 + 1] and [4 + 3] annulation reactions: a modular approach to N-aryl/alkyl substituted 2,5-diamidopyrroles and diazepines. Org Biomol Chem 2022; 20:7017-7021. [PMID: 36001012 DOI: 10.1039/d2ob01458k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-pot copper-catalyzed [4 + 1] annulation reaction of primary amines with ynamide-derived buta-1,3-diynes for the synthesis of 2,5-diamido bearing N-aryl/alkyl pyrroles in up to excellent yields has been showcased. A broad range of primary amines having highly reactive functional groups are well tolerated. Notably, sterically demanding aniline and primary aliphatic amines are excellent amine sources. Furthermore, the current protocol may yield structurally unique diazepine derivatives. The scale-up reaction and fruitful chemical elaboration of pyrrole motifs highlight the importance of this reaction.
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Affiliation(s)
- Shivani Choudhary
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India. .,Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Gayyur
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.
| | - Nayan Ghosh
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India. .,Academy of Scientific and Innovative Research, Ghaziabad 201002, India
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Spirandelli da Costa M, Borges BC, Marques IT, de Oliveira RC, Teixeira TL, de Gouveia Santos J, Silva CVD. Pentachloropseudilin treatment impairs host cell invasion by Trypanosoma cruzi. Chembiochem 2022; 23:e202200349. [PMID: 35839379 DOI: 10.1002/cbic.202200349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/14/2022] [Indexed: 11/08/2022]
Abstract
Pentachloropseudilin (PClP) is a reversible and allosteric inhibitor of type 1 myosin. Here, we addressed the impact of PClP treatment of Trypanosoma cruzi and mammalian host cell on the parasite migration, cell adhesion and invasion. We observed that PClP was not toxic to either T. cruzi or host cell. Moreover, treatment of T. cruzi with PClP inhbited parasite motility, host cell adhesion and invasion. Treatment of host cell with PClP also impaired parasite invasion probably by decreasing lysosome migration to the entry site of the parasite. Therefore, PClP treatment impaired fundamental processes necessary for a successful T. cruzi infection.
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Affiliation(s)
| | | | | | | | | | | | - Claudio Vieira da Silva
- Universidade Federal de Uberlândia, Imunologia, Rua Piauí, Bloco 2B sala 200, 38400096, Uberlândia, BRAZIL
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6
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Åslund A, Bokhari MH, Wetterdal E, Martin R, Knölker HJ, Bengtsson T. Myosin 1c: A novel regulator of glucose uptake in brown adipocytes. Mol Metab 2021; 53:101247. [PMID: 33965643 PMCID: PMC8182130 DOI: 10.1016/j.molmet.2021.101247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/26/2021] [Accepted: 05/03/2021] [Indexed: 12/02/2022] Open
Abstract
Objective The potential of brown adipose tissue (BAT) to influence energy homeostasis in animals and humans is encouraging as this tissue can increase fatty acid and glucose utilization to produce heat through uncoupling protein 1 (UCP1), but the actual mechanism of how the cell regulates glucose uptake is not fully understood. Myosin 1c (Myo1c) is an unconventional motor protein involved in several cellular processes, including insulin-mediated glucose uptake via GLUT4 vesicle fusion in white adipocytes, but its role in glucose uptake in BAT has not previously been investigated. Methods Using the specific inhibitor pentachloropseudilin (PClP), a neutralizing antibody assay, and siRNA, we examined the role of Myo1c in mechanisms leading to glucose uptake both in vitro in isolated mouse primary adipocytes and in vivo in mice. Results Our results show that inhibition of Myo1c removes insulin-stimulated glucose uptake in white adipocytes, while inducing glucose uptake in brown adipocytes, independent of GLUT4, by increasing the expression, translation, and translocation of GLUT1 to the plasma membrane. Inhibition of Myo1c leads to the activation of PKA and downstream substrates p38 and ATF-2, which are known to be involved in the expression of β-adrenergic genes. Conclusions Myo1c is a PKA repressor and regulates glucose uptake into BAT. Myo1c is a BAT-specific regulator of glucose uptake. Myo1c inhibition leads to increased expression, translation, and translocation of GLUT1. Myo1c inhibition results in increased activation of PKA and its downstream targets.
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Affiliation(s)
- Alice Åslund
- Department of Molecular Biosciences, Wenner-Gren Institute, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Muhammad Hamza Bokhari
- Department of Molecular Biosciences, Wenner-Gren Institute, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Erika Wetterdal
- Department of Molecular Biosciences, Wenner-Gren Institute, Stockholm University, SE-106 91, Stockholm, Sweden
| | - René Martin
- Faculty of Chemistry, Technical University of Dresden, Bergstrasse 66, 01069, Dresden, Germany
| | - Hans-Joachim Knölker
- Faculty of Chemistry, Technical University of Dresden, Bergstrasse 66, 01069, Dresden, Germany
| | - Tore Bengtsson
- Department of Molecular Biosciences, Wenner-Gren Institute, Stockholm University, SE-106 91, Stockholm, Sweden.
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7
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Targeting the cytoskeleton against metastatic dissemination. Cancer Metastasis Rev 2021; 40:89-140. [PMID: 33471283 DOI: 10.1007/s10555-020-09936-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 10/08/2020] [Indexed: 02/08/2023]
Abstract
Cancer is a pathology characterized by a loss or a perturbation of a number of typical features of normal cell behaviour. Indeed, the acquisition of an inappropriate migratory and invasive phenotype has been reported to be one of the hallmarks of cancer. The cytoskeleton is a complex dynamic network of highly ordered interlinking filaments playing a key role in the control of fundamental cellular processes, like cell shape maintenance, motility, division and intracellular transport. Moreover, deregulation of this complex machinery contributes to cancer progression and malignancy, enabling cells to acquire an invasive and metastatic phenotype. Metastasis accounts for 90% of death from patients affected by solid tumours, while an efficient prevention and suppression of metastatic disease still remains elusive. This results in the lack of effective therapeutic options currently available for patients with advanced disease. In this context, the cytoskeleton with its regulatory and structural proteins emerges as a novel and highly effective target to be exploited for a substantial therapeutic effort toward the development of specific anti-metastatic drugs. Here we provide an overview of the role of cytoskeleton components and interacting proteins in cancer metastasis with a special focus on small molecule compounds interfering with the actin cytoskeleton organization and function. The emerging involvement of microtubules and intermediate filaments in cancer metastasis is also reviewed.
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8
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Richter S, Martin R, Gutzeit HO, Knölker HJ. In vitro and in vivo effects of inhibitors on actin and myosin. Bioorg Med Chem 2021; 30:115928. [PMID: 33341499 DOI: 10.1016/j.bmc.2020.115928] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/30/2020] [Accepted: 12/03/2020] [Indexed: 11/18/2022]
Abstract
The interaction of actin and myosin is essential for cell migration. We have identified kaempferol and pentahalogenated pseudilins as efficient inhibitors of migration of MDA-MB-231 breast adenocarcinoma cells. The compounds were studied with respect to possible effects on myosin-2-ATPase activity. The pentahalogenated pseudilins inhibited the enzyme activity in vitro. Flavonoids showed no effect on enzyme activity. The polymerization dynamics of actin was measured to test whether the integrity of F-actin is essential for the migration of MDA-MB-231 cells. Quercetin and kaempferol depolymerized F-actin with similar efficiencies as found for the pentahalogenated pseudilins, whereas epigallocatechin showed the weakest effect. As the inhibitory effect on cell migration may be caused by a toxic effect, we have performed a cytotoxicity test and, furthermore, investigated the influence of the test compounds on cardiac function in eleutheroembryos of medaka (Oryzias latipes). Compared with the pentahalogenated pseudilins, the cytotoxic and cardiotoxic effects of flavonoids on medaka embryos were found to be moderate.
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Affiliation(s)
- Sabine Richter
- Faculty of Biology, TU Dresden, Zellescher Weg 20b, 01217 Dresden, Germany
| | - René Martin
- Faculty of Chemistry, TU Dresden, Bergstrasse 66, 01069 Dresden, Germany
| | - Herwig O Gutzeit
- Faculty of Biology, TU Dresden, Zellescher Weg 20b, 01217 Dresden, Germany.
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9
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Vellino S, Oddou C, Rivier P, Boyault C, Hiriart-Bryant E, Kraut A, Martin R, Coute Y, Knölker HJ, Valverde MA, Albigès-Rizo C, Destaing O. Cross-talk between the calcium channel TRPV4 and reactive oxygen species interlocks adhesive and degradative functions of invadosomes. J Cell Biol 2021; 220:211651. [PMID: 33399853 PMCID: PMC7788461 DOI: 10.1083/jcb.201910079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 07/23/2020] [Accepted: 11/13/2020] [Indexed: 02/06/2023] Open
Abstract
Invadosomes support cell invasion by coupling both acto-adhesive and extracellular matrix degradative functions, which are apparently antagonistic. β1-integrin dynamics regulate this coupling, but the actual sensing mechanism and effectors involved have not yet been elucidated. Using genetic and reverse genetic approaches combined with biochemical and imaging techniques, we now show that the calcium channel TRPV4 colocalizes with β1-integrins at the invadosome periphery and regulates its activation and the coupling of acto-adhesive and degradative functions. TRPV4-mediated regulation of podosome function depends on its ability to sense reactive oxygen species (ROS) in invadosomes' microenvironment and involves activation of the ROS/calcium-sensitive kinase Ask1 and binding of the motor MYO1C. Furthermore, disease-associated TRPV4 gain-of-function mutations that modulate ECM degradation are also implicated in the ROS response, which provides new perspectives in our understanding of the pathophysiology of TRPV4 channelopathies.
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Affiliation(s)
- Sanela Vellino
- Dynamique des systèmes d'adhérence, Institut for Advanced Biosciences, Centre de Recherche University Grenoble Alpes/INSERM U1209/Centre National de la Recherche Scientifique Unité mixte de recherche 5309, La Tronche, France
| | - Christiane Oddou
- Dynamique des systèmes d'adhérence, Institut for Advanced Biosciences, Centre de Recherche University Grenoble Alpes/INSERM U1209/Centre National de la Recherche Scientifique Unité mixte de recherche 5309, La Tronche, France
| | - Paul Rivier
- Dynamique des systèmes d'adhérence, Institut for Advanced Biosciences, Centre de Recherche University Grenoble Alpes/INSERM U1209/Centre National de la Recherche Scientifique Unité mixte de recherche 5309, La Tronche, France
| | - Cyril Boyault
- Dynamique des systèmes d'adhérence, Institut for Advanced Biosciences, Centre de Recherche University Grenoble Alpes/INSERM U1209/Centre National de la Recherche Scientifique Unité mixte de recherche 5309, La Tronche, France
| | - Edwige Hiriart-Bryant
- Dynamique des systèmes d'adhérence, Institut for Advanced Biosciences, Centre de Recherche University Grenoble Alpes/INSERM U1209/Centre National de la Recherche Scientifique Unité mixte de recherche 5309, La Tronche, France
| | - Alexandra Kraut
- Laboratoire EDyP, Institute of Biosciences and Biotechnologies of Grenoble-Biologie à Grande Echelle, Commissariat à l'Énergie Atomique Grenoble, Grenoble, France
| | - René Martin
- Faculty of Chemistry, Technische Universität Dresden, Dresden, Germany
| | - Yohann Coute
- Laboratoire EDyP, Institute of Biosciences and Biotechnologies of Grenoble-Biologie à Grande Echelle, Commissariat à l'Énergie Atomique Grenoble, Grenoble, France
| | | | - Miguel A. Valverde
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Corinne Albigès-Rizo
- Dynamique des systèmes d'adhérence, Institut for Advanced Biosciences, Centre de Recherche University Grenoble Alpes/INSERM U1209/Centre National de la Recherche Scientifique Unité mixte de recherche 5309, La Tronche, France
| | - Olivier Destaing
- Dynamique des systèmes d'adhérence, Institut for Advanced Biosciences, Centre de Recherche University Grenoble Alpes/INSERM U1209/Centre National de la Recherche Scientifique Unité mixte de recherche 5309, La Tronche, France,Correspondence to Olivier Destaing:
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10
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Nathaniel CR, Neetha M, Anilkumar G. Silver‐catalyzed pyrrole synthesis: An overview. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6141] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | - Mohan Neetha
- School of Chemical Sciences Mahatma Gandhi University Kottayam India
| | - Gopinathan Anilkumar
- School of Chemical Sciences Mahatma Gandhi University Kottayam India
- Advanced Molecular Materials Research Centre Mahatma Gandhi University Kottayam India
- Institute for Integrated Programmes and Research in Basic Sciences Mahatma Gandhi University Kottayam India
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11
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Zhong Y, Zhao X, Zhao X, Zhang D, Li W, Wei S, Liu F, Yu J, Li G, Wang D. Multi-component syntheses of 2-pyrrolines and organocatalytic asymmetric syntheses of functionalized chiral 2-pyrrolines. Org Chem Front 2021. [DOI: 10.1039/d0qo01267j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The atom-economical synthesis of 2-pyrrolines has been achieved by carrying out the multi-component tandem [2 + 2 + 1] annulation of commercially available starting materials, namely, an aldehyde, glycine ester hydrochloride, and benzoylacetonitrile.
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Affiliation(s)
- Yuan Zhong
- Gansu Provincial Key Laboratory of Aridland Crop Science
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Xiaoqiang Zhao
- Gansu Provincial Key Laboratory of Aridland Crop Science
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Xiaoyun Zhao
- College Journal Editorial Department
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Dan Zhang
- Instrumental Analysis Center
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Wenli Li
- Instrumental Analysis Center
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Shouhui Wei
- Gansu Provincial Key Laboratory of Aridland Crop Science
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Fanhong Liu
- Gansu Provincial Key Laboratory of Aridland Crop Science
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Jihua Yu
- Gansu Provincial Key Laboratory of Aridland Crop Science
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Guichen Li
- Instrumental Analysis Center
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Dandan Wang
- College Journal Editorial Department
- Gansu Agricultural University
- Lanzhou 730070
- China
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12
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Choudhary S, Yadav J, Mamta, Pawar AP, Vanaparthi S, Mir NA, Iype E, Sharma R, Kant R, Kumar I. Sequential multicomponent site-selective synthesis of 4-iodo and 5-iodopyrrole-3-carboxaldehydes from a common set of starting materials by tuning the conditions. Org Biomol Chem 2020; 18:1155-1164. [PMID: 31976504 DOI: 10.1039/c9ob02501d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and straightforward method for the synthesis of 4-iodo and 5-iodopyrrole-3-carboxaldehydes is developed from a common set of starting materials by tuning the reaction conditions. This sequential multicomponent protocol involves I2-mediated regioselective C4-iodination and aromatization of intermediate dihydropyrrole, generated through proline-catalyzed direct Mannich reaction-cyclization sequence between succinaldehyde and imines, to access 4-iodopyrroles. While aerobic oxidative aromatization of dihydropyrrole to pyrrole followed by NIS-mediated regioselective iodination furnished 5-iodopyrroles in a two-pot fashion. A series of site-selective C4/C5-iodopyrroles have been synthesized in good to high yields (up to 78%) and DFT calculations of these compounds were also performed.
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Affiliation(s)
- Sachin Choudhary
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
| | - Jyothi Yadav
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
| | - Mamta
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
| | - Amol Prakash Pawar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
| | - Satheeshvarma Vanaparthi
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
| | - Nisar A Mir
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
| | - Eldhose Iype
- Department of Chemical Engineering, BITS Pilani, Dubai Campus, Dubai, United Arab Emirates
| | - Ratika Sharma
- X-ray Crystallography Laboratory, Post-Graduate Department of Physics & Electronics, University of Jammu, Jammu 180 006, India
| | - Rajni Kant
- X-ray Crystallography Laboratory, Post-Graduate Department of Physics & Electronics, University of Jammu, Jammu 180 006, India
| | - Indresh Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
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13
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Metal-free photoredox-catalysed formal C–H/C–H coupling of arenes enabled by interrupted Pummerer activation. Nat Catal 2020. [DOI: 10.1038/s41929-019-0415-3] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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14
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Soni JP, Chemitikanti KS, Joshi SV, Shankaraiah N. The microwave-assisted syntheses and applications of non-fused single-nitrogen-containing heterocycles. Org Biomol Chem 2020; 18:9737-9761. [PMID: 33211792 DOI: 10.1039/d0ob01779e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Microwave technology has emerged as a great tool for the efficient synthesis of organic compounds and it provides opportunities for chemists to achieve chemical transformations that tend to be challenging using classical approaches. Additionally, N-heterocycles are well-known for their medicinal/biological significance, along with their applications as excellent building blocks in chemical synthesis. The dominance of N-heterocycles in drug molecules and other pharmacological agents makes them attractive scaffolds, which encourages chemists to develop a wide range of strategies towards the greener synthesis and functionalization of these heterocycles. In this regard, we have collated and discussed literature relating to the microwave-assisted synthesis and the modification of non-(benzo)fused single-nitrogen-containing N-heterocycles from the past decade. The role of the microwave technique and its benefits over the conventional approach have also been emphasized in terms of overall reaction efficiency, reaction time, yield, reduced side-product generation, neat and clean reactions, chemo-/regio-/enantio-selectivity, and the use of mild reagents/reaction conditions to achieve the objectives of green and sustainable chemistry.
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Affiliation(s)
- Jay Prakash Soni
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad - 500037, India.
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15
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Wang D, Fan Y, Yu P, Désaubry L. Recent advances in the synthesis of 2,3-dihydropyrroles. Chem Commun (Camb) 2020; 56:5584-5592. [DOI: 10.1039/d0cc02096f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This review summarizes the advances in the synthesis of 2,3-dihydropyrroles with an emphasis on recent developments or important seminal contributions.
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Affiliation(s)
- Dong Wang
- Sino-French Joint Lab of Food Nutrition/Safety and Medicinal Chemistry
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry
- College of Biotechnology
- Tianjin University of Science and Technology
- Tianjin 300457
| | - Yu Fan
- Sino-French Joint Lab of Food Nutrition/Safety and Medicinal Chemistry
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry
- College of Biotechnology
- Tianjin University of Science and Technology
- Tianjin 300457
| | - Peng Yu
- Sino-French Joint Lab of Food Nutrition/Safety and Medicinal Chemistry
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry
- College of Biotechnology
- Tianjin University of Science and Technology
- Tianjin 300457
| | - Laurent Désaubry
- Sino-French Joint Lab of Food Nutrition/Safety and Medicinal Chemistry
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry
- College of Biotechnology
- Tianjin University of Science and Technology
- Tianjin 300457
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16
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Karimi S, Ma S, Qu M, Chen B, Ramig K, Greer EM, Szalda DJ, Neary MC, Berkowitz WF, Subramaniam G. A new synthesis of biologically active pyrroles: Formal synthesis of pentabromopseudilin, bimetopyrol, and several antitubercular agents. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sasan Karimi
- Department of ChemistryQueensborough Community College of the City University of New York Bayside New York
| | - Shuai Ma
- Department of Chemistry and BiochemistryQueens College of the City University of New York Flushing New York
| | - Michelle Qu
- Department of ChemistryQueensborough Community College of the City University of New York Bayside New York
| | - Biling Chen
- Department of ChemistryQueensborough Community College of the City University of New York Bayside New York
| | - Keith Ramig
- Department of Natural SciencesBaruch College of the City University of New York New York New York
| | - Edyta M. Greer
- Department of Natural SciencesBaruch College of the City University of New York New York New York
| | - David J. Szalda
- Department of Natural SciencesBaruch College of the City University of New York New York New York
| | - Michelle C. Neary
- Department of ChemistryHunter College of the City University of New York New York New York
| | - William F. Berkowitz
- Department of Chemistry and BiochemistryQueens College of the City University of New York Flushing New York
| | - Gopal Subramaniam
- Department of Chemistry and BiochemistryQueens College of the City University of New York Flushing New York
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17
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Cui WC, Zhao W, Gao M, Liu W, Wang S, Liang Y, Yao ZJ. Diastereoselective Synthesis of Polysubstituted Piperidines through Visible-Light-Driven Silylative Cyclization of Aza-1,6-Dienes: Experimental and DFT Studies. Chemistry 2019; 25:16506-16510. [PMID: 31544271 DOI: 10.1002/chem.201903440] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/19/2019] [Indexed: 01/24/2023]
Abstract
A visible-light-driven radical silylative cyclization of aza-1,6-dienes featuring an acrylonitrile or acrylate moiety and an electron-neutral olefin was developed, which allows for stereoselective synthesis of densely functionalized piperidines in a highly atom-economical manner. Depending on the substitution pattern of the electron-neutral olefin, poor-to-excellent diastereoselectivity was observed. It was suggested that the 6-exo-trig cyclization was initiated by a chemoselective addition of silyl radical toward electron-deficient olefin and the geometry of the remaining olefin is closely associated with the cis-stereoselectivity. DFT calculations supported that a transition state with a cyano group locating at the axial position of the forming piperidine ring might be involved, in which either the increase of 1,3-diaxial repulsion or the lack of hydrogen bonding interaction will diminish diastereoselectivity.
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Affiliation(s)
- Wei-Chen Cui
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Wenxuan Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Ming Gao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Wei Liu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Yong Liang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Zhu-Jun Yao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
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18
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Cota Teixeira S, Silva Lopes D, Santos da Silva M, Cordero da Luz FA, Cirilo Gimenes SN, Borges BC, Alves da Silva A, Alves Martins F, Alves Dos Santos M, Teixeira TL, Oliveira RA, de Melo Rodrigues Ávila V, Barbosa Silva MJ, Elias MC, Martin R, Vieira da Silva C, Knölker HJ. Pentachloropseudilin Impairs Angiogenesis by Disrupting the Actin Cytoskeleton, Integrin Trafficking and the Cell Cycle. Chembiochem 2019; 20:2390-2401. [PMID: 31026110 DOI: 10.1002/cbic.201900203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Indexed: 12/21/2022]
Abstract
Class 1 myosins (Myo1s) were the first unconventional myosins identified and humans have eight known Myo1 isoforms. The Myo1 family is involved in the regulation of gene expression, cytoskeletal rearrangements, delivery of proteins to the cell surface, cell migration and spreading. Thus, the important role of Myo1s in different biological processes is evident. In this study, we have investigated the effects of pentachloropseudilin (PClP), a reversible and allosteric potent inhibitor of Myo1s, on angiogenesis. We demonstrated that treatment of cells with PClP promoted a decrease in the number of vessels. The observed inhibition of angiogenesis is likely to be related to the inhibition of cell proliferation, migration and adhesion, as well as to alteration of the actin cytoskeleton pattern, as shown on a PClP-treated HUVEC cell line. Moreover, we also demonstrated that PClP treatment partially prevented the delivery of integrins to the plasma membrane. Finally, we showed that PClP caused DNA strand breaks, which are probably repaired during the cell cycle arrest in the G1 phase. Taken together, our results suggest that Myo1s participate directly in the angiogenesis process.
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Affiliation(s)
- Samuel Cota Teixeira
- Department of Immunology, Biomedical Sciences Institute, Federal University of Uberlândia, Rua Piauí, Bloco 2B, sala 200, Campus Umuarama, Uberlândia, 38400-902, MG, Brazil
| | - Daiana Silva Lopes
- Multidisciplinary Institute of Health, Anísio Teixeira Campus, Federal University of Bahia, Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, 45029-094, BA, Brazil
| | - Marcelo Santos da Silva
- Special Laboratory of Cell Cycle (LECC), Center of Toxins, Immune Response and Cell Signaling (CeTICS), Butantan Institute, Av. Vital Brasil, 1500 - Butantã, São Paulo, 05503-900, SP, Brazil.,The Wellcome Centre for Molecular Parasitology, Institute of Infection, Immunity and Inflammation, Sir Graeme Davies Building, University of Glasgow, 120 University Place, Glasgow, G12 8TA, UK
| | - Felipe Andrés Cordero da Luz
- Department of Immunology, Biomedical Sciences Institute, Federal University of Uberlândia, Rua Piauí, Bloco 2B, sala 200, Campus Umuarama, Uberlândia, 38400-902, MG, Brazil
| | - Sarah Natalie Cirilo Gimenes
- Imunopathology Laboratory, Butantan Institute, Av. Vital Brasil, 1500 - Butantã, São Paulo, 05503-900, SP, Brazil
| | - Bruna Cristina Borges
- Department of Immunology, Biomedical Sciences Institute, Federal University of Uberlândia, Rua Piauí, Bloco 2B, sala 200, Campus Umuarama, Uberlândia, 38400-902, MG, Brazil
| | - Aline Alves da Silva
- Department of Immunology, Biomedical Sciences Institute, Federal University of Uberlândia, Rua Piauí, Bloco 2B, sala 200, Campus Umuarama, Uberlândia, 38400-902, MG, Brazil
| | - Flávia Alves Martins
- Department of Immunology, Biomedical Sciences Institute, Federal University of Uberlândia, Rua Piauí, Bloco 2B, sala 200, Campus Umuarama, Uberlândia, 38400-902, MG, Brazil
| | - Marlus Alves Dos Santos
- Department of Immunology, Biomedical Sciences Institute, Federal University of Uberlândia, Rua Piauí, Bloco 2B, sala 200, Campus Umuarama, Uberlândia, 38400-902, MG, Brazil
| | - Thaise Lara Teixeira
- Department of Immunology, Biomedical Sciences Institute, Federal University of Uberlândia, Rua Piauí, Bloco 2B, sala 200, Campus Umuarama, Uberlândia, 38400-902, MG, Brazil
| | - Ricardo A Oliveira
- Medical School, Federal University of Uberlândia, Av. Pará, Bloco 2u, 1720 - Umuarama, Uberlândia, 38400-902, MG, Brazil
| | - Veridiana de Melo Rodrigues Ávila
- Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720 - Bloco 2E - Sala(s) 246 - Campus Umuarama, Uberlândia, 38405-320, MG, Brazil
| | - Marcelo José Barbosa Silva
- Department of Immunology, Biomedical Sciences Institute, Federal University of Uberlândia, Rua Piauí, Bloco 2B, sala 200, Campus Umuarama, Uberlândia, 38400-902, MG, Brazil
| | - Maria Carolina Elias
- Special Laboratory of Cell Cycle (LECC), Center of Toxins, Immune Response and Cell Signaling (CeTICS), Butantan Institute, Av. Vital Brasil, 1500 - Butantã, São Paulo, 05503-900, SP, Brazil
| | - René Martin
- Fakultät Chemie, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany
| | - Claudio Vieira da Silva
- Department of Immunology, Biomedical Sciences Institute, Federal University of Uberlândia, Rua Piauí, Bloco 2B, sala 200, Campus Umuarama, Uberlândia, 38400-902, MG, Brazil
| | - Hans-Joachim Knölker
- Fakultät Chemie, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany
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19
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Tan TD, Zhu XQ, Bu HZ, Deng G, Chen YB, Liu RS, Ye LW. Copper-Catalyzed Cascade Cyclization of Indolyl Homopropargyl Amides: Stereospecific Construction of Bridged Aza-[n.2.1] Skeletons. Angew Chem Int Ed Engl 2019; 58:9632-9639. [PMID: 31095848 DOI: 10.1002/anie.201904698] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Indexed: 11/09/2022]
Abstract
Catalytic cycloisomerization-initiated cascade cyclizations of terminal alkynes have received tremendous interest, and been widely used in the facile synthesis of a diverse array of valuable complex heterocycles. However, these tandem reactions have been mostly limited to noble-metal catalysis, and are initiated by an exo-cyclization pathway. Reported herein is an unprecedented copper-catalyzed endo-cyclization-initiated tandem reaction of indolyl homopropargyl amides, where copper catalyzes both the hydroamination and Friedel-Crafts alkylation process. This method allows the practical and atom-economical synthesis of valuable bridged aza-[n.2.1] skeletons (n=3-6) with wide substrate scope, and excellent diastereoselectivity and enantioselectivity by a chirality-transfer strategy. Moreover, the mechanistic rationale for this novel cascade cyclization is also strongly supported by control experiments, and is distinctively different from the related gold catalysis.
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Affiliation(s)
- Tong-De Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Hao-Zhen Bu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Guocheng Deng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yang-Bo Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Rai-Shung Liu
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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20
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Tan T, Zhu X, Bu H, Deng G, Chen Y, Liu R, Ye L. Copper‐Catalyzed Cascade Cyclization of Indolyl Homopropargyl Amides: Stereospecific Construction of Bridged Aza‐[
n
.2.1] Skeletons. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904698] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Tong‐De Tan
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Xin‐Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Hao‐Zhen Bu
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Guocheng Deng
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Yang‐Bo Chen
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Rai‐Shung Liu
- Department of ChemistryNational Tsing-Hua University Hsinchu Taiwan
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 China
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21
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Kumar M, Sharma S, Sil P, Kushwaha M, Mayor S, Vishwakarma RA, Singh PP. C-H Arylation of N
-Heteroarenes under Metal-Free Conditions and its Application towards the Synthesis of Pentabromo- and Pentachloropseudilins. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900353] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Mukesh Kumar
- Medicinal Chemistry Division; Academy of Scientific and Innovative Research; CSIR-Indian Institute of Integrative Medicine; Canal Road -180001 Jammu India
| | - Shweta Sharma
- Medicinal Chemistry Division; Academy of Scientific and Innovative Research; CSIR-Indian Institute of Integrative Medicine; Canal Road -180001 Jammu India
| | - Parijat Sil
- National Centre for Biological Sciences; Tata Institute of Fundamental Research; GKVK; Bellary Road 560065 Bangalore- India
| | - Manoj Kushwaha
- Medicinal Chemistry Division; Academy of Scientific and Innovative Research; CSIR-Indian Institute of Integrative Medicine; Canal Road -180001 Jammu India
| | - Satyajit Mayor
- National Centre for Biological Sciences; Tata Institute of Fundamental Research; GKVK; Bellary Road 560065 Bangalore- India
| | - Ram A. Vishwakarma
- Medicinal Chemistry Division; Academy of Scientific and Innovative Research; CSIR-Indian Institute of Integrative Medicine; Canal Road -180001 Jammu India
| | - Parvinder Pal Singh
- Medicinal Chemistry Division; Academy of Scientific and Innovative Research; CSIR-Indian Institute of Integrative Medicine; Canal Road -180001 Jammu India
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22
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A one-pot direct regioselective iodination of Fischer-Borsche product using periodic acid in PEG-400. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Medran NS, La-Venia A, Testero SA. Metal-mediated synthesis of pyrrolines. RSC Adv 2019; 9:6804-6844. [PMID: 35518475 PMCID: PMC9061060 DOI: 10.1039/c8ra10247c] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/18/2019] [Indexed: 12/21/2022] Open
Abstract
The five-membered, nitrogen-containing pyrroline ring is a privileged structure. This ring is present in many bioactive compounds from natural sources. Pyrrolines-the dihydro derivatives of pyrroles-have three structural isomer classes, depending on the location of the double bond: 1-pyrrolines (3,4-dihydro-2H-pyrroles), 2-pyrrolines (2,3-dihydro-1H-pyrroles) and 3-pyrrolines (2,5-dihydro-1H-pyrroles). This review aims to describe the latest advances for the synthesis of pyrrolines by transition metal-catalyzed cyclizations. Only reactions in which the pyrroline ring is formed by metal promotion are described. Transformations of the pyrroline ring in other heterocycles, and the structural manipulations of the pyrroline itself are not discussed. The review is organized into three parts, each covering the metal-mediated synthesis of the three pyrroline isomers. Each part is subdivided according to the metal involved, and concludes with a brief description of notable biological activities within the class.
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Affiliation(s)
- Noelia S Medran
- Instituto de Química Rosario - IQUIR (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Suipacha 531 Rosario S2002LRK Argentina http://www.iquir-conicet.gov.ar/eng/
| | - Agustina La-Venia
- Instituto de Química Rosario - IQUIR (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Suipacha 531 Rosario S2002LRK Argentina http://www.iquir-conicet.gov.ar/eng/
| | - Sebastian A Testero
- Instituto de Química Rosario - IQUIR (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Suipacha 531 Rosario S2002LRK Argentina http://www.iquir-conicet.gov.ar/eng/
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24
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Guđmundsson A, Gustafson KPJ, Mai BK, Hobiger V, Himo F, Bäckvall JE. Diastereoselective Synthesis of N-Protected 2,3-Dihydropyrroles via Iron-Catalyzed Cycloisomerization of α-Allenic Sulfonamides. ACS Catal 2019. [DOI: 10.1021/acscatal.8b05029] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Arnar Guđmundsson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Karl P. J. Gustafson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Binh Khanh Mai
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Viola Hobiger
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Fahmi Himo
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Jan-E. Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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25
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Shih-Wei W, Chih-Ling C, Kao YC, Martin R, Knölker HJ, Shiao MS, Chen CL. Pentabromopseudilin: a myosin V inhibitor suppresses TGF-β activity by recruiting the type II TGF-β receptor to lysosomal degradation. J Enzyme Inhib Med Chem 2018; 33:920-935. [PMID: 29768059 PMCID: PMC6009923 DOI: 10.1080/14756366.2018.1465416] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Pentabromopseudilin (PBrP) is a marine antibiotic isolated from the marine bacteria Pseudomonas bromoutilis and Alteromonas luteoviolaceus. PBrP exhibits antimicrobial, anti-tumour, and phytotoxic activities. In mammalian cells, PBrP is known to act as a reversible and allosteric inhibitor of myosin Va (MyoVa). In this study, we report that PBrP is a potent inhibitor of transforming growth factor-β (TGF-β) activity. PBrP inhibits TGF-β-stimulated Smad2/3 phosphorylation, plasminogen activator inhibitor-1 (PAI-1) protein production and blocks TGF-β-induced epithelial–mesenchymal transition in epithelial cells. PBrP inhibits TGF-β signalling by reducing the cell-surface expression of type II TGF-β receptor (TβRII) and promotes receptor degradation. Gene silencing approaches suggest that MyoVa plays a crucial role in PBrP-induced TβRII turnover and the subsequent reduction of TGF-β signalling. Because, TGF-β signalling is crucial in the regulation of diverse pathophysiological processes such as tissue fibrosis and cancer development, PBrP should be further explored for its therapeutic role in treating fibrotic diseases and cancer.
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Affiliation(s)
- Wang Shih-Wei
- a Department of Biological Sciences , National Sun Yat-sen University , Kaohsiung , Taiwan, ROC
| | - Chung Chih-Ling
- a Department of Biological Sciences , National Sun Yat-sen University , Kaohsiung , Taiwan, ROC
| | - Yu-Chen Kao
- a Department of Biological Sciences , National Sun Yat-sen University , Kaohsiung , Taiwan, ROC
| | - René Martin
- b Department of Chemistry , TU Dresden , Dresden , Germany
| | | | - Meng-Shin Shiao
- c Faculty of Medicine Ramathibodi Hospital , Mahidol University , Bangkok , Thailand
| | - Chun-Lin Chen
- a Department of Biological Sciences , National Sun Yat-sen University , Kaohsiung , Taiwan, ROC.,d Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica , Kaohsiung , Taiwan, ROC
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26
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Xu H, Liu HW, Chen K, Wang GW. One-Pot Multicomponent Mechanosynthesis of Polysubstituted trans-2,3-Dihydropyrroles and Pyrroles from Amines, Alkyne Esters, and Chalcones. J Org Chem 2018; 83:6035-6049. [PMID: 29745226 DOI: 10.1021/acs.joc.8b00665] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient and practical one-pot multicomponent reaction of amines with alkyne esters and chalcones promoted by I2/PhI(OAc)2 has been developed under solvent-free ball-milling conditions to afford a variety of polysubstituted trans-2,3-dihydropyrroles in moderate to good yields. The present method features a short reaction time, mild reaction conditions, broad substrate scope, and feasibility of large-scale synthesis. Intriguingly, this protocol can also furnish the corresponding synthetically more attractive pyrroles with the addition of an oxidant in a one-pot way.
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Affiliation(s)
- Hui Xu
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Hong-Wei Liu
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Kuan Chen
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Guan-Wu Wang
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China.,State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou , Gansu 730000 , P. R. China
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27
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Schlegel M, Schneider C. Rapid Construction of Complex 2-Pyrrolines through Lewis Acid-Catalyzed, Sequential Three-Component Reactions via in Situ-Generated 1-Azaallyl Cations. Org Lett 2018; 20:3119-3123. [DOI: 10.1021/acs.orglett.8b01205] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Marcel Schlegel
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Christoph Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
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28
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Xu B, Zhang ZM, Zhou L, Zhang J. Direct Asymmetric Formal [3 + 2] Cycloaddition Reaction of Isocyanoesters with β-Trifluoromethyl β,β-Disubstituted Enones Leading to Optically Active Dihydropyrroles. Org Lett 2018; 20:2716-2719. [DOI: 10.1021/acs.orglett.8b00925] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bing Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Lujia Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
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29
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Zhang M, Di X, Zhang M, Zhang J. Gold(I)-Catalyzed Diastereo- and Enantioselective Synthesis of Polysubstituted Pyrrolo[3,4-d
][1,2]oxazines. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201700575] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Mei Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry; East China Normal University, 3663 N, Zhongshan Road; Shanghai 200062 China
| | - Xiaoyu Di
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry; East China Normal University, 3663 N, Zhongshan Road; Shanghai 200062 China
| | - Mingrui Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry; East China Normal University, 3663 N, Zhongshan Road; Shanghai 200062 China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry; East China Normal University, 3663 N, Zhongshan Road; Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; Shanghai 200032 China
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30
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Chung CL, Wang SW, Martin R, Knölker HJ, Kao YC, Lin MH, Chen JJ, Huang YB, Wu DC, Chen CL. Pentachloropseudilin Inhibits Transforming Growth Factor-β (TGF-β) Activity by Accelerating Cell-Surface Type II TGF-β Receptor Turnover in Target Cells. Chembiochem 2018; 19:851-864. [DOI: 10.1002/cbic.201700693] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Chih-Ling Chung
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung 80424 ROC Taiwan
| | - Shih-Wei Wang
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung 80424 ROC Taiwan
| | - René Martin
- Department of Chemistry; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany
| | - Hans-Joachim Knölker
- Department of Chemistry; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany
| | - Yu-Chen Kao
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung 80424 ROC Taiwan
| | - Ming-Hong Lin
- Department of Microbiology and Immunology; Faculty of Medicine; Kaohsiung Medical University Hospital; Kaohsiung 80708 ROC Taiwan
| | - Jih-Jung Chen
- Faculty of Pharmacy; School of Pharmaceutical Sciences; National Yang-Ming University; Taipei 11221 ROC Taiwan
| | - Yaw-Bin Huang
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung 80424 ROC Taiwan
- Department of Pharmacy; School of Pharmacy; Kaohsiung Medical University; Kaohsiung 80708 ROC Taiwan
- Center for Stem Cell Research; Kaohsiung Medical University; Kaohsiung 80708 ROC Taiwan
| | - Deng-Chyang Wu
- Division of Gastroenterology; Department of Internal Medicine; Kaohsiung Medical University Hospital; Kaohsiung 80708 ROC Taiwan
- Center for Stem Cell Research; Kaohsiung Medical University; Kaohsiung 80708 ROC Taiwan
| | - Chun-Lin Chen
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung 80424 ROC Taiwan
- Doctoral Degree Program in Marine Biotechnology; National Sun Yat-sen University and Academia Sinica; Kaohsiung 80424 ROC Taiwan
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31
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Huang C, Zeng Y, Cheng H, Hu A, Liu L, Xiao Y, Zhang J. A One-Pot Construction of Halogenated Trifluoromethylated Pyrroles through NXS (X = Br, I) Triggered Cascade. Org Lett 2017; 19:4968-4971. [DOI: 10.1021/acs.orglett.7b02427] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chaoqian Huang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, PR China
| | - Yu Zeng
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, PR China
| | - Huayu Cheng
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, PR China
| | - Anjing Hu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, PR China
| | - Lu Liu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, PR China
| | - Yuanjing Xiao
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, PR China
| | - Junliang Zhang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, PR China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS. 345 Lingling Road, Shanghai 200032, PR China
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32
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Schwab A, Illarionov B, Frank A, Kunfermann A, Seet M, Bacher A, Witschel MC, Fischer M, Groll M, Diederich F. Mechanism of Allosteric Inhibition of the Enzyme IspD by Three Different Classes of Ligands. ACS Chem Biol 2017; 12:2132-2138. [PMID: 28686408 DOI: 10.1021/acschembio.7b00004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Enzymes of the nonmevalonate pathway of isoprenoid biosynthesis are attractive targets for the development of herbicides and drugs against infectious diseases. While this pathway is essential for many pathogens and plants, mammals do not depend on it for the synthesis of isoprenoids. IspD, the third enzyme of the nonmevalonate pathway, is unique in that it has an allosteric regulatory site. We elucidated the binding mode of phenylisoxazoles, a new class of allosteric inhibitors. Allosteric inhibition is effected by large conformational changes of a loop region proximal to the active site. We investigated the different roles of residues in this loop by mutation studies and identified repulsive interactions with Asp291 and Asp292 to be responsible for inhibition. Crystallographic data and the response of mutant enzymes to three different classes of allosteric inhibitors provide an in-depth understanding of the allosteric mechanism. The obtained mutant enzymes show selective resistance to allosteric inhibitors and provide conceptually valuable information for future engineering of herbicide-resistant crops. We found that the isoprenoid precursors IPP and DMAPP are natural inhibitors of Arabidopsis thaliana IspD; however, they do not seem to bind to the allosteric site.
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Affiliation(s)
- Anatol Schwab
- Laboratorium
für Organische Chemie, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
| | - Boris Illarionov
- Hamburg
School of Food Science, Universität Hamburg Grindelallee
117, 20146 Hamburg, Germany
| | - Annika Frank
- Center
for Integrated Protein Science Munich, Lehrstuhl für Biochemie, Technische Universität München, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - Andrea Kunfermann
- Center
for Integrated Protein Science Munich, Lehrstuhl für Biochemie, Technische Universität München, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - Michael Seet
- Laboratorium
für Organische Chemie, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
| | - Adelbert Bacher
- Center
for Integrated Protein Science Munich, Lehrstuhl für Biochemie, Technische Universität München, Lichtenbergstrasse 4, 85748 Garching, Germany
| | | | - Markus Fischer
- Hamburg
School of Food Science, Universität Hamburg Grindelallee
117, 20146 Hamburg, Germany
| | - Michael Groll
- Center
for Integrated Protein Science Munich, Lehrstuhl für Biochemie, Technische Universität München, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - François Diederich
- Laboratorium
für Organische Chemie, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
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33
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Gupta P, Martin R, Knölker HJ, Nihalani D, Kumar Sinha D. Myosin-1 inhibition by PClP affects membrane shape, cortical actin distribution and lipid droplet dynamics in early Zebrafish embryos. PLoS One 2017; 12:e0180301. [PMID: 28678859 PMCID: PMC5498032 DOI: 10.1371/journal.pone.0180301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 06/13/2017] [Indexed: 12/22/2022] Open
Abstract
Myosin-1 (Myo1) represents a mechanical link between the membrane and actin-cytoskeleton in animal cells. We have studied the effect of Myo1 inhibitor PClP in 1-8 cell Zebrafish embryos. Our results indicate a unique involvement of Myo1 in early development of Zebrafish embryos. Inhibition of Myo1 (by PClP) and Myo2 (by Blebbistatin) lead to arrest in cell division. While Myo1 isoforms appears to be important for both the formation and the maintenance of cleavage furrows, Myo2 is required only for the formation of furrows. We found that the blastodisc of the embryo, which contains a thick actin cortex (~13 μm), is loaded with cortical Myo1. Myo1 appears to be crucial for maintaining the blastodisc morphology and the actin cortex thickness. In addition to cell division and furrow formation, inhibition of Myo1 has a drastic effect on the dynamics and distribution of lipid droplets (LDs) in the blastodisc near the cleavage furrow. All these results above are effects of Myo1 inhibition exclusively; Myo2 inhibition by blebbistatin does not show such phenotypes. Therefore, our results demonstrate a potential role for Myo1 in the maintenance and formation of furrow, blastodisc morphology, cell-division and LD organization within the blastodisc during early embryogenesis.
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MESH Headings
- Actin Cytoskeleton/drug effects
- Actin Cytoskeleton/metabolism
- Actins/genetics
- Actins/metabolism
- Animals
- Blastomeres/cytology
- Blastomeres/metabolism
- Blastomeres/ultrastructure
- Blotting, Western
- Cell Division/drug effects
- Cell Division/genetics
- Cell Membrane/metabolism
- Embryo, Nonmammalian/embryology
- Embryo, Nonmammalian/metabolism
- Embryo, Nonmammalian/ultrastructure
- Gene Expression Regulation, Developmental
- Heterocyclic Compounds, 4 or More Rings/pharmacology
- Hydrocarbons, Chlorinated/pharmacology
- Lipid Droplets/metabolism
- Microscopy, Electron, Scanning
- Microscopy, Fluorescence
- Myosin Heavy Chains/antagonists & inhibitors
- Myosin Heavy Chains/genetics
- Myosin Heavy Chains/metabolism
- Pyrroles/pharmacology
- Reverse Transcriptase Polymerase Chain Reaction
- Zebrafish/embryology
- Zebrafish/genetics
- Zebrafish/metabolism
- Zebrafish Proteins/antagonists & inhibitors
- Zebrafish Proteins/genetics
- Zebrafish Proteins/metabolism
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Affiliation(s)
| | - René Martin
- Department Chemie, TU Dresden, Dresden, Germany
| | | | - Deepak Nihalani
- Dept. Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
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34
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Ye TY, Selvaraju M, Sun CM. Cascade Synthesis of Benzimidazole-Linked Pyrroles via Copper Catalyzed Oxidative Cyclization and Ketonization. Org Lett 2017; 19:3103-3106. [DOI: 10.1021/acs.orglett.7b01224] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Tzuen-Yang Ye
- Department of Applied
Chemistry, National Chiao-Tung University, 1001, Ta-Hseuh Road, Hsinchu 300-10, Taiwan
| | - Manikandan Selvaraju
- Department of Applied
Chemistry, National Chiao-Tung University, 1001, Ta-Hseuh Road, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Department of Applied
Chemistry, National Chiao-Tung University, 1001, Ta-Hseuh Road, Hsinchu 300-10, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100, Shih-Chuan First Road, Kaohsiung 807-08, Taiwan
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35
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Tong S, Piemontesi C, Wang Q, Wang MX, Zhu J. Silver-Catalyzed Three-Component 1,1-Aminoacylation of Homopropargylamines: α-Additions for Both Terminal Alkynes and Isocyanides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shuo Tong
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Cyril Piemontesi
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Mei-Xiang Wang
- Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
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36
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Tong S, Piemontesi C, Wang Q, Wang MX, Zhu J. Silver-Catalyzed Three-Component 1,1-Aminoacylation of Homopropargylamines: α-Additions for Both Terminal Alkynes and Isocyanides. Angew Chem Int Ed Engl 2017; 56:7958-7962. [DOI: 10.1002/anie.201704727] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Shuo Tong
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Cyril Piemontesi
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Mei-Xiang Wang
- Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
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37
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Santhini PV, Nimisha G, John J, Suresh E, Varma RL, Radhakrishnan KV. Pd-Catalyzed oxidative annulation of enamides with diazabicyclic olefins: rapid access to cyclopentene fused 2-pyrrolines. Chem Commun (Camb) 2017; 53:1848-1851. [DOI: 10.1039/c6cc08753a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A catalytic tandem transformation via C–H activation of enamides for the stereoselective synthesis of cyclopentene fused 2-pyrrolines has been realized.
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Affiliation(s)
- P. V. Santhini
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi 110001
- India
- Organic Chemistry Section
- CSIR-National Institute for Interdisciplinary Science and Technology
| | - G. Nimisha
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi 110001
- India
- Organic Chemistry Section
- CSIR-National Institute for Interdisciplinary Science and Technology
| | - Jubi John
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi 110001
- India
- Organic Chemistry Section
- CSIR-National Institute for Interdisciplinary Science and Technology
| | - E. Suresh
- Central Salt and Marine Chemicals Research Institute
- Bhavnagar 364 002
- India
| | - R. Luxmi Varma
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi 110001
- India
- Organic Chemistry Section
- CSIR-National Institute for Interdisciplinary Science and Technology
| | - K. V. Radhakrishnan
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi 110001
- India
- Organic Chemistry Section
- CSIR-National Institute for Interdisciplinary Science and Technology
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38
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Yoshida M, Kobayashi A, Nakayama A, Namba K. Synthesis of functionalized 2,3-dihydropyrroles by oxidative radical cyclization of N-Sulfonyl β-enamino esters with alkenes. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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39
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A highly practical approach to chiral homoallylic–homopropargylic amines via aza-Barbier reaction. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.103] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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40
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Prospéri MT, Lépine P, Dingli F, Paul-Gilloteaux P, Martin R, Loew D, Knölker HJ, Coudrier E. Myosin 1b functions as an effector of EphB signaling to control cell repulsion. J Cell Biol 2016. [PMID: 26195670 PMCID: PMC4508888 DOI: 10.1083/jcb.201501018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Myosin 1b functions as an effector of EphB2/ephrinB signaling and controls cell morphology and cell repulsion. Eph receptors and their membrane-tethered ligands, the ephrins, have important functions in embryo morphogenesis and in adult tissue homeostasis. Eph/ephrin signaling is essential for cell segregation and cell repulsion. This process is accompanied by morphological changes and actin remodeling that drives cell segregation and tissue patterning. The actin cortex must be mechanically coupled to the plasma membrane to orchestrate the cell morphology changes. Here, we demonstrate that myosin 1b that can mechanically link the membrane to the actin cytoskeleton interacts with EphB2 receptors via its tail and is tyrosine phosphorylated on its tail in an EphB2-dependent manner. Myosin 1b regulates the redistribution of myosin II in actomyosin fibers and the formation of filopodia at the interface of ephrinB1 and EphB2 cells, which are two processes mediated by EphB2 signaling that contribute to cell repulsion. Together, our results provide the first evidence that a myosin 1 functions as an effector of EphB2/ephrinB signaling, controls cell morphology, and thereby cell repulsion.
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Affiliation(s)
| | - Priscilla Lépine
- Institut Curie, Centre de Recherche, F-75248 Paris, France Université Pierre et Marie Curie, F-75252 Paris, France
| | - Florent Dingli
- Laboratoire de Spectrométrie de Masse Protéomique, Institut Curie, Centre de Recherche, F-75248 Paris, France
| | - Perrine Paul-Gilloteaux
- Institut Curie, Centre de Recherche, F-75248 Paris, France Cell and Tissue Imaging Facility (PICT-IBiSA), Centre National de la Recherche Scientifique, UMR 144, Paris F-75248, France
| | - René Martin
- Department of Chemistry, Technische Univesität, 01069 Dresden, Germany
| | - Damarys Loew
- Laboratoire de Spectrométrie de Masse Protéomique, Institut Curie, Centre de Recherche, F-75248 Paris, France
| | | | - Evelyne Coudrier
- Institut Curie, Centre de Recherche, F-75248 Paris, France Cell and Tissue Imaging Facility (PICT-IBiSA), Centre National de la Recherche Scientifique, UMR 144, Paris F-75248, France
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41
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Kittelberger N, Breunig M, Martin R, Knölker HJ, Miklavc P. The role of myosin 1c and myosin 1b in surfactant exocytosis. J Cell Sci 2016; 129:1685-96. [PMID: 26940917 PMCID: PMC4852769 DOI: 10.1242/jcs.181313] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 02/25/2016] [Indexed: 12/19/2022] Open
Abstract
Actin and actin-associated proteins have a pivotal effect on regulated exocytosis in secretory cells and influence pre-fusion as well as post-fusion stages of exocytosis. Actin polymerization on secretory granules during the post-fusion phase (formation of an actin coat) is especially important in cells with large secretory vesicles or poorly soluble secretions. Alveolar type II (ATII) cells secrete hydrophobic lipo-protein surfactant, which does not easily diffuse from fused vesicles. Previous work showed that compression of actin coat is necessary for surfactant extrusion. Here, we investigate the role of class 1 myosins as possible linkers between actin and membranes during exocytosis. Live-cell microscopy showed translocation of fluorescently labeled myosin 1b and myosin 1c to the secretory vesicle membrane after fusion. Myosin 1c translocation was dependent on its pleckstrin homology domain. Expression of myosin 1b and myosin 1c constructs influenced vesicle compression rate, whereas only the inhibition of myosin 1c reduced exocytosis. These findings suggest that class 1 myosins participate in several stages of ATII cell exocytosis and link actin coats to the secretory vesicle membrane to influence vesicle compression.
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Affiliation(s)
- Nadine Kittelberger
- Institute of General Physiology, Ulm University, Albert-Einstein Allee 11, Ulm 89081, Germany
| | - Markus Breunig
- Institute of General Physiology, Ulm University, Albert-Einstein Allee 11, Ulm 89081, Germany
| | - René Martin
- Department of Chemistry, Technische Universität Dresden, Bergstr. 66, Dresden 01069, Germany
| | - Hans-Joachim Knölker
- Department of Chemistry, Technische Universität Dresden, Bergstr. 66, Dresden 01069, Germany
| | - Pika Miklavc
- Institute of General Physiology, Ulm University, Albert-Einstein Allee 11, Ulm 89081, Germany
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42
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Microwave assisted synthesis of dihydropyrrole by AgOAc catalyzed intramolecular cyclization reaction of homopropargyl amine. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2442-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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43
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Myosin-II-mediated cell shape changes and cell intercalation contribute to primitive streak formation. Nat Cell Biol 2015; 17:397-408. [PMID: 25812521 PMCID: PMC4886837 DOI: 10.1038/ncb3138] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 02/16/2015] [Indexed: 12/14/2022]
Abstract
Primitive streak formation in the chick embryo involves large scale highly coordinated flows of over 100.000 cells in the epiblast. These large scale tissue flows and deformations can be correlated with specific anisotropic cell behaviours in the forming mesendoderm through a combined light-sheet microscopy and computational analysis. Relevant behaviours include apical contraction, elongation along the apical-basal axis followed by ingression as well as asynchronous directional cell intercalation of small groups of mesendoderm cells. Cell intercalation is associated with sequential, directional contraction of apical junctions, the onset, localisation and direction of which correlate strongly with the appearance of active Myosin II cables in aligned apical junctions in neighbouring cells. Use of a class specific Myosin inhibitors and gene specific knockdowns show that apical contraction and intercalation are Myosin II dependent and also reveal critical roles for Myosin I and Myosin V family members in the assembly of junctional Myosin II cables.
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44
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Yu YF, Shu C, Zhou B, Li JQ, Zhou JM, Ye LW. Efficient and practical synthesis of enantioenriched 2,3-dihydropyrroles through gold-catalyzed anti-Markovnikov hydroamination of chiral homopropargyl sulfonamides. Chem Commun (Camb) 2015; 51:2126-9. [DOI: 10.1039/c4cc09245g] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A direct gold-catalyzed anti-Markovnikov hydroamination of chiral homopropargyl sulfonamides has been developed. A range of enantioenriched 2,3-dihydropyrroles are readily accessed by utilizing this approach.
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Affiliation(s)
- Yong-Fei Yu
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen
- P. R. China
| | - Chao Shu
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen
- P. R. China
| | - Bo Zhou
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen
- P. R. China
| | - Jian-Qiao Li
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen
- P. R. China
| | - Jin-Mei Zhou
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen
- P. R. China
| | - Long-Wu Ye
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen
- P. R. China
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Reddy V, Jadhav AS, Vijaya Anand R. A room-temperature protocol to access isoquinolines through Ag(i) catalysed annulation of o-(1-alkynyl)arylaldehydes and ketones with NH4OAc: elaboration to berberine and palmatine. Org Biomol Chem 2015; 13:3732-41. [DOI: 10.1039/c4ob02641a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A silver catalysed protocol for the synthesis of a wide range of isoquinolines from o-(1-alkynyl)arylaldehydes has been developed under mild conditions and elaborated to the synthesis of berberine and palmatine.
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Affiliation(s)
- Virsinha Reddy
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
| | - Abhijeet S. Jadhav
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
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46
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Batchu VR, Romero-Estudillo I, Boto A, Miguélez J. Metal-free, one-pot conversion of proline derivatives into 2-aryl-3-iodo pyrrolidines by a sequential scission-iodination-arylation process. Org Biomol Chem 2014; 12:9547-56. [PMID: 25333212 DOI: 10.1039/c4ob01372g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The metal-free, direct conversion of readily available proline derivatives into 2-aryl-3-iodopyrrolidines is carried out under mild conditions and in good yields, using a sequential radical decarboxylation-oxidation-iodination-arylation reaction. These iodinated pyrrolidines are valuable precursors of other compounds. For instance, they can be cyclized to tricyclic compounds or undergo dehalogenation to 2-aryl-2,5-dihydro-1H-pyrroles, which are iminosugar and 2-arylpyrrole precursors. This process provides a short pathway to a variety of alkaloid and drug analogues of potential pharmaceutical interest.
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Affiliation(s)
- Venkateswara Rao Batchu
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain.
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47
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Zou Y, Yue G, Xu J, Zhou JS. General Suzuki Coupling of Heteroaryl Bromides by Using Tri-tert-butylphosphine as a Supporting Ligand. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402915] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Martin R, Risacher C, Barthel A, Jäger A, Schmidt AW, Richter S, Böhl M, Preller M, Chinthalapudi K, Manstein DJ, Gutzeit HO, Knölker HJ. Silver(I)-Catalyzed Route to Pyrroles: Synthesis of Halogenated Pseudilins as Allosteric Inhibitors for Myosin ATPase and X-ray Crystal Structures of the Protein-Inhibitor Complexes. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402177] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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50
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Shang H, Wang Y, Tian Y, Feng J, Tang Y. The Divergent Synthesis of Nitrogen Heterocycles by Rhodium(II)-Catalyzed Cycloadditions of 1-Sulfonyl 1,2,3-Triazoles with 1,3-Dienes. Angew Chem Int Ed Engl 2014; 53:5662-6. [DOI: 10.1002/anie.201400426] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 03/10/2014] [Indexed: 11/11/2022]
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