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Yang H, Gou J, Guo J, Duan D, Zhao YM, Yu B, Gao Z. Bifunctional Furfuryl Cations Strategy: Three-Component Synthesis of Enamidyl Triazoles. Chemistry 2015; 22:129-33. [DOI: 10.1002/chem.201504330] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Indexed: 11/08/2022]
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2
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Lu J, Li J. Label-Free Imaging of Dynamic and Transient Calcium Signaling in Single Cells. Angew Chem Int Ed Engl 2015; 54:13576-80. [PMID: 26337802 DOI: 10.1002/anie.201505991] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Indexed: 01/12/2023]
Abstract
Cell signaling consists of diverse events that occur at various temporal and spatial scales, ranging from milliseconds to hours and from single biomolecules to cell populations. The pathway complexities require the development of new techniques that detect the overall signaling activities and are not limited to quantifying a single event. A plasmonic-based electrochemical impedance microscope (P-EIM) that can provide such data with excellent temporal and spatial resolution and does not require the addition of any labels for detection has now been developed. The highly dynamic and transient calcium signaling activities at the early stage of G-protein-coupled receptor (GPCR) stimulation were thus studied. It could be shown that a subpopulation of cells is more responsive towards agonist stimulation, and the heterogeneity of the local distributions and the transient activities of the ion channels during agonist-activated calcium flux in single HeLa cells were investigated.
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Affiliation(s)
- Jin Lu
- Department of Chemistry, Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Tsinghua University, Beijing 100084 (China)
| | - Jinghong Li
- Department of Chemistry, Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Tsinghua University, Beijing 100084 (China).
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3
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Lu J, Li J. Label-Free Imaging of Dynamic and Transient Calcium Signaling in Single Cells. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505991] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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4
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Voigt T, Gerding-Reimers C, Ngoc Tran TT, Bergmann S, Lachance H, Schölermann B, Brockmeyer A, Janning P, Ziegler S, Waldmann H. A natural product inspired tetrahydropyran collection yields mitosis modulators that synergistically target CSE1L and tubulin. Angew Chem Int Ed Engl 2012; 52:410-4. [PMID: 23080551 DOI: 10.1002/anie.201205728] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Indexed: 02/04/2023]
Abstract
A Prins cyclization between a polymer-bound aldehyde and a homoallylic alcohol served as the key step in the synthesis of tetrahydropyran derivatives. A phenotypic screen led to the identification of compounds that inhibit mitosis (as seen by the accumulation of round cells with condensed DNA and membrane blebs). These compounds were termed tubulexins as they target the CSE1L protein and the vinca alkaloid binding site of tubulin.
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Affiliation(s)
- Tobias Voigt
- Max-Planck-Institut für molekulare Physiologie, Abt. Chemische Biologie, Dortmund, Germany
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Voigt T, Gerding-Reimers C, Ngoc Tran TT, Bergmann S, Lachance H, Schölermann B, Brockmeyer A, Janning P, Ziegler S, Waldmann H. A Natural Product Inspired Tetrahydropyran Collection Yields Mitosis Modulators that Synergistically Target CSE1L and Tubulin. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205728] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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6
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Alcaide B, Almendros P, Alonso JM, Quirós MT, Gadziński P. Gold- or Palladium-Catalyzed Allene Carbocyclization/Functionalization: Simple and Efficient Synthesis of Carbazoles. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100209] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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7
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Wilk W, Nören-Müller A, Kaiser M, Waldmann H. Biology-Oriented Combined Solid- and Solution-Phase Synthesis of a Macroline-Like Compound Collection. Chemistry 2009; 15:11976-84. [DOI: 10.1002/chem.200901797] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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8
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Corrêa IR, Nören-Müller A, Ambrosi HD, Jakupovic S, Saxena K, Schwalbe H, Kaiser M, Waldmann H. Identification of Inhibitors for Mycobacterial Protein Tyrosine Phosphatase B (MptpB) by Biology-Oriented Synthesis (BIOS). Chem Asian J 2007; 2:1109-26. [PMID: 17685373 DOI: 10.1002/asia.200700125] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Protein phosphatases have recently emerged as important targets for research in chemical biology and medicinal chemistry, and new classes of phosphatase inhibitors are in high demand. BIOS (biology-oriented synthesis) employs the criteria of relevance to nature and biological prevalidation for the design and synthesis of compound collections. In an application of the BIOS principle, an efficient solid-phase synthesis of highly substituted indolo[2,3-a]quinolizidines by using a vinylogous Mannich-Michael reaction in combination with phosgene- or acid-mediated ring closure was developed. Screening of this library for phosphatase inhibitors yielded a new inhibitor class for the Mycobacterium tuberculosis phosphatase MptpB.
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Affiliation(s)
- Ivan R Corrêa
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, D-44367 Dortmund, Germany
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Affiliation(s)
- Brian P Davies
- Humboldt Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, 12489 Berlin, Germany
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10
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Hirsch A, Fischer F, Diederich F. Molekulare Erkennung von Phosphaten in der Strukturbiologie. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200603420] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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Abstract
Drug-discovery research in the past decade has seen an increased selection of targets with phosphate recognition sites, such as protein kinases and phosphatases, in the past decade. This review attempts, with the help of database-mining tools, to give an overview of the most important principles in molecular recognition of phosphate groups by enzymes. A total of 3003 X-ray crystal structures from the RCSB Protein Data Bank with bound organophosphates has been analyzed individually, in particular for H-bonding interactions between proteins and ligands. The various known binding motifs for phosphate binding are reviewed, and similarities to phosphate complexation by synthetic receptors are highlighted. An analysis of the propensities of amino acids in various classes of phosphate-binding enzymes showed characteristic distributions of amino acids used for phosphate binding. This review demonstrates that structure-based lead development and optimization should carefully address the phosphate-binding-site environment and also proposes new alternatives for filling such sites.
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Affiliation(s)
- Anna K H Hirsch
- Laboratorium für Organische Chemie, ETH Zürich, Hönggerberg, HCI, 8093 Zürich, Switzerland
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12
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Bialy L, Waldmann H. Inhibitors of protein tyrosine phosphatases: next-generation drugs? Angew Chem Int Ed Engl 2006; 44:3814-39. [PMID: 15900534 DOI: 10.1002/anie.200461517] [Citation(s) in RCA: 358] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The protein tyrosine phosphatases (PTPs) constitute a family of closely related key regulatory enzymes that dephosphorylate phosphotyrosine residues in their protein substrates. Malfunctions in PTP activity are linked to various diseases, ranging from cancer to neurological disorders and diabetes. Consequently, PTPs have emerged as promising targets for therapeutic intervention in recent years. In this review, general aspects of PTPs and the development of small-molecule inhibitors of PTPs by both academic research groups and pharmaceutical companies are discussed. Different strategies have been successfully applied to identify potent and selective inhibitors. These studies constitute the basis for the future development of PTP inhibitors as drugs.
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Affiliation(s)
- Laurent Bialy
- Max-Planck-Institut für molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
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Lumbierres M, Palomo JM, Kragol G, Waldmann H. Solid-phase synthesis of palmitoylated and farnesylated lipopeptides employing the fluoride-labile PTMSEL linker. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.02.109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Lumbierres M, Palomo JM, Kragol G, Roehrs S, Müller O, Waldmann H. Solid-Phase Synthesis of Lipidated Peptides. Chemistry 2005; 11:7405-15. [PMID: 16193522 DOI: 10.1002/chem.200500476] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A new flexible and efficient methodology for the solid-phase synthesis of lipidated peptides has been developed. The approach is based on the use of previously synthesized building blocks and overcomes the limitations of previously reported methods, since long doubly lipidated peptides can be synthesized by using this route. Furthermore, it was thus possible to prepare a large number of N- and H-Ras peptides bearing a wide range of reporter and/or linking groups--efficient tools for the investigation of biological processes. In terms of efficiency and flexibility this solid-phase method is superior to the solution-phase synthesis. It gives pure peptides in multimilligram amounts within a much shorter time and with superior overall yield.
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Affiliation(s)
- Maria Lumbierres
- Max-Planck-Institut für molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
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16
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Bialy L, Waldmann H. Inhibitoren der Proteintyrosinphosphatasen: Kandidaten für zukünftige Wirkstoffe? Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200461517] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Fürstner A, Reinecke K, Prinz H, Waldmann H. The core structures of roseophilin and the prodigiosin alkaloids define a new class of protein tyrosine phosphatase inhibitors. Chembiochem 2005; 5:1575-9. [PMID: 15515092 DOI: 10.1002/cbic.200400135] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr, Germany.
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18
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Gan Z, Reddy PT, Quevillon S, Couve-Bonnaire S, Arya P. Stereocontrolled Solid-Phase Synthesis of a 90-Membered Library of Indoline-Alkaloid-like Polycycles from an Enantioenriched Aminoindoline Scaffold. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200462298] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Gan Z, Reddy PT, Quevillon S, Couve-Bonnaire S, Arya P. Stereocontrolled Solid-Phase Synthesis of a 90-Membered Library of Indoline-Alkaloid-like Polycycles from an Enantioenriched Aminoindoline Scaffold. Angew Chem Int Ed Engl 2005; 44:1366-8. [PMID: 15674986 DOI: 10.1002/anie.200462298] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Zhonghong Gan
- Chemical Biology Program, Steacie Institute for Molecular Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario, K1A 0R6, Canada
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20
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Kragol G, Lumbierres M, Palomo JM, Waldmann H. Solid-Phase Synthesis of Lipidated Peptides. Angew Chem Int Ed Engl 2004; 43:5839-42. [PMID: 15523710 DOI: 10.1002/anie.200461150] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Goran Kragol
- Max-Planck-Institut für molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
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21
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Kragol G, Lumbierres M, Palomo JM, Waldmann H. Solid-Phase Synthesis of Lipidated Peptides. Angew Chem Int Ed Engl 2004. [DOI: 10.1002/ange.200461150] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Fürstner A, Feyen F, Prinz H, Waldmann H. Synthesis and evaluation of the antitumor agent TMC-69-6H and a focused library of analogs. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.06.139] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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23
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24
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25
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26
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Weinig HG, Krauss R, Seydack M, Bendig J, Koert U. Molecular signal transduction by conformational transmission: use of tetrasubstituted perhydroanthracenes as transducers. Chemistry 2001; 7:2075-88. [PMID: 11411980 DOI: 10.1002/1521-3765(20010518)7:10<2075::aid-chem2075>3.0.co;2-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
2,3,6,7-Tetrasubstituted cis-anti-cis perhydroanthracenes have been studied as conformational transducers for molecular signal transduction. 2,2'-Bipyridine groups attached to the perhydroanthracene through ether linkages were chosen as receptor substituents, while pyrene groups were selected as effectors. A chelation-induced triple ring flip of the perhydroanthracene could be achieved by the complexation of zinc(II) ions at the bipyridine sites of ligands 13 and 15. It was found that two pyrene substituents attached to the perhydroanthracene via a linker with an E double bond and an ester group could be used to monitor the triple ring flip. In the equatorial positions, the pyrenes are sufficiently close to form an excimer in the excited state, giving a fluorescence signal at 480 nm. In the axial positions, they are far away from each other and give mainly a monomer fluorescence signal at 380 nm. Both the bipyridine receptor and the pyrene effector are present in compound 33. The conformational switching 34-->35 (the two conformers of 33) has successfully been used for a signal transduction over a signal distance of 2 nm.
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Affiliation(s)
- H G Weinig
- Institut für Chemie der Humboldt-Universität zu Berlin, Germany
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27
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Huster D, Kuhn K, Kadereit D, Waldmann H, Arnold K. 1H High-Resolution Magic Angle Spinning NMR Spectroscopy for the Investigation of a Ras Lipopeptide in a Lipid Membrane This work was supported by the Deutsche Forschungsgemeinschaft (SFB 197 and Innovationskolleg "Chemisches Signal und biologische Antwort"). D.H. is grateful for a BASF fellowship through the Studienstiftung des Deutschen Volkes. The authors thank Dr. A. Pampel for technical support with the DRX600. Angew Chem Int Ed Engl 2001; 40:1056-1058. [PMID: 11268071 DOI: 10.1002/1521-3773(20010316)40:6<1056::aid-anie10560>3.0.co;2-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Daniel Huster
- Universität Leipzig Institut für Medizinische Physik und Biophysik Liebigstrasse 27, 04103 Leipzig (Germany)
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28
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Huster D, Kuhn K, Kadereit D, Waldmann H, Arnold K. 1H-HR-MAS-NMR-Spektroskopie zur Untersuchung eines Ras-Lipopeptides in Lipidmembranen. Angew Chem Int Ed Engl 2001. [DOI: 10.1002/1521-3757(20010316)113:6<1083::aid-ange10830>3.0.co;2-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Abstract
Lipidated peptides and their neolipoprotein derivatives are efficient tools for the investigation of biological processes in molecular detail. These compounds are often acid- and base-labile, and their synthesis requires the use of a combination of blocking groups that can be removed under very mild conditions. In this article we demonstrate that the Boc urethane and different trityl-type protecting groups can be cleaved selectively under acidic conditions that are mild enough to be compatible with the demands of lipopeptide synthesis. Thus, the Boc group was cleaved with TMS triflate in the presence of lutidine, and the methyltrityl (Mtt) and the methoxytrityl (Mmt) group were removed with 1% TFA in dichloromethane in the presence of triethylsilane as cation scavenger. Removal of the phenylfluorenyl group was achieved with up to 3% TFA in dichloromethane in the presence of triethylsilane at 0 degrees C. These protecting-group techniques were successfully applied in the synthesis of differently lipidated H-Ras peptides.
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Affiliation(s)
- D Kadereit
- Max-Planck-Institut für molekulare Physiologie, Universität Dortmund, Germany.
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30
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Seitz O, Heinemann I, Mattes A, Waldmann H. Synthetic peptide conjugates—tailor-made probes for the biology of protein modification and protein processing. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(00)01115-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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31
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Kuhn K, Owen DJ, Bader B, Wittinghofer A, Kuhlmann J, Waldmann H. Synthesis of functional Ras lipoproteins and fluorescent derivatives. J Am Chem Soc 2001; 123:1023-35. [PMID: 11456655 DOI: 10.1021/ja002723o] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
For the study of biological signal transduction, access to correctly lipidated proteins is of utmost importance. Furthermore, access to bioconjugates that embody the correct structure of the protein but that may additionally carry different lipid groups or labels (i.e., fluorescent tags) by which the protein can be traced in biological systems, could provide invaluable reagents. We report here of the development of techniques for the synthesis of a series of modified Ras proteins. These modified Ras proteins carry a number of different, natural and non-natural lipid residues, and the process was extended to also provide access to a number of fluorescently labeled derivatives. The maleimide group provided the key to link chemically synthesized lipopeptide molecules in a specific and efficient manner to a truncated form of the H-Ras protein. Furthermore, a preliminary study on the biological activity of the natural Ras protein derivative (containing the normal farnesyl and palmitoyl lipid residues) has shown full biological activity. This result highlights the usefulness of these compounds as invaluable tools for the study of Ras signal transduction processes and the plasma membrane localization of the Ras proteins.
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Affiliation(s)
- K Kuhn
- Department of Chemical Biology, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
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32
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Krauss R, Weinig HG, Seydack M, Bendig J, Koert U. Molekulare Signaltransduktion durch konformative Transmission mit einem Perhydroanthracen-Transducer. Angew Chem Int Ed Engl 2000. [DOI: 10.1002/(sici)1521-3757(20000515)112:10<1905::aid-ange1905>3.0.co;2-u] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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33
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Sander J, Waldmann H. Enzymatic Protecting Group Techniques for Glyco- and Phosphopeptide Chemistry: Synthesis of a Glycophosphopeptide from Human Serum Response Factor. Chemistry 2000. [DOI: 10.1002/(sici)1521-3765(20000502)6:9<1564::aid-chem1564>3.0.co;2-q] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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35
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36
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Kuhn K, Waldmann H. Synthesis of characteristic palmitoylated lipopeptides from human Y1 receptor by a combination of enzyme-labile and Pd(0)-sensitive protecting groups. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)01388-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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38
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Chemoenzymatische Synthese eines charakteristischen Glycophosphopeptids aus der Transaktivierungsdomäne des Serum-Response-Faktors. Angew Chem Int Ed Engl 1999. [DOI: 10.1002/(sici)1521-3757(19990503)111:9<1337::aid-ange1337>3.0.co;2-m] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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40
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Owen DJ, Alexandrov K, Rostkova E, Scheidig AJ, Goody RS, Waldmann H. Chemoenzymatische Synthese fluoreszierender Rab-7-Proteine: Werkzeuge zum Studium des vesikulären Transports in Zellen. Angew Chem Int Ed Engl 1999. [DOI: 10.1002/(sici)1521-3757(19990215)111:4<570::aid-ange570>3.0.co;2-i] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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41
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Nägele E, Schelhaas M, Kuder N, Waldmann H. Chemoenzymatic Synthesis of N-Ras Lipopeptides. J Am Chem Soc 1998. [DOI: 10.1021/ja9805627] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Edgar Nägele
- Contribution from the Department of Organic Chemistry, University of Karlsruhe, Richard Willstätter Allee 2, D-76128 Karlsruhe, Germany
| | - Michael Schelhaas
- Contribution from the Department of Organic Chemistry, University of Karlsruhe, Richard Willstätter Allee 2, D-76128 Karlsruhe, Germany
| | - Norman Kuder
- Contribution from the Department of Organic Chemistry, University of Karlsruhe, Richard Willstätter Allee 2, D-76128 Karlsruhe, Germany
| | - Herbert Waldmann
- Contribution from the Department of Organic Chemistry, University of Karlsruhe, Richard Willstätter Allee 2, D-76128 Karlsruhe, Germany
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42
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Stereoselective synthesis of the core structure of the protein phosphatase inhibitor dysidiolide. Tetrahedron Lett 1998. [DOI: 10.1016/s0040-4039(98)00702-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Hinterding K, Hagenbuch P, Rétey J, Waldmann H. Synthese und In-vitro-Evaluierung des Ras-Farnesyltransferase-Inhibitors Pepticinnamin E. Angew Chem Int Ed Engl 1998. [DOI: 10.1002/(sici)1521-3757(19980504)110:9<1298::aid-ange1298>3.0.co;2-b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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