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Titelbild: Total Synthesis and Revised Structure of Biyouyanagin A (Angew. Chem. 25/2007)
Nicolaou, K. C.
/ Sarlah, David
/ Shaw, David M.et al.
| 2007
Siliciumanaloga von Kronenethern und Cryptanden: ein neues Kapitel in der Wirt-Gast-Chemie?FNR HREF="nss"> FN ID="nss"> Diese Arbeit wurde durch das NSERC (Kanada), Alberta Ingenuity und die Killam Foundation (Universität Calgary) finanziell unterstützt. Wir danken Prof. J. Passmore für die Mitteilung unveröffentlichter Ergebnisse (Lit. [18]) und Dr. C. von Hänisch für eine Kopie von Lit. [19] vor dem Erscheinen.
Sodium-Mediated Manganation: Direct Mono- and Dimanganation of Benzene and Synthesis of a Transition-Metal Inverse-Crown ComplexFNR HREF="nss"> FN ID="nss"> This research was supported by the UK Engineering and Physical Science Research Council through grant award nos. GR-T27228-01, EP-D076889-1, and EP-D076889-1.
Signal-Amplifying Conjugated Polymer-DNA Hybrid ChipsFNR HREF="nss"> FN ID="nss"> We appreciate financial support from the National Science Foundation (BES 0428010) and the equipment grant from the University of Michigan College of Engineering. J.K. and K.L. also acknowledge the Ilju Foundation for the Ilju scholarship.
Isolation of High-Affinity Trypsin Inhibitors from a DNA-Encoded Chemical LibraryFNR HREF="nss"> FN ID="nss"> We are grateful to Dr. Jens Sobek and Dr. Ralph Schlapbach (Functional Genomics Center Zürich) for help with the spotting of oligonucleotide chips, and we acknowledge financial support from the ETH Zürich, the Bundesamt für Bildung und Wissenschaft for the EU Project "STROMA", the Swiss National Science Foundation, Philogen SpA, and Philochem AG. The authors declare competing financial interests. ESAC technology is covered by a patent application, which was licensed from the ETH Zürich to Philogen under a share of revenues agreement. D.N. owns shares of Philogen and consults for this company. Since November 2006, S.M. is employed by Philochem, a daughter company of Philogen.
A Liquid-Crystalline Bistable [2]RotaxaneFNR HREF="nss"> FN ID="nss"> The work at UCLA was supported by the Microelectronics Advanced Research Corporation (MARCO) and its focus center on Functional Engineered Architectonics (FENA), the Defense Advanced Research Project Agency (DARPA), and the Center for Nanoscale Innovation for Defense (CNID). The research at the University of Tokyo was supported by a Grant-in-Aid for Creative Scientific Research of "Invention of Conjugated Electronic Structures and Novel Functions" (no. 16GS0209) and for Scientific Research (B) from the Japan Society for the Promotion of Science (JSPS).
A Liquid-Crystalline [2]Catenane and Its Copper(I) ComplexFNR HREF="nss"> FN ID="nss"> This work was partially supported by a Grant-in-Aid for Creative Scientific Research of "Invention of Conjugated Electronic Structures and Novel Functions" (no. 16GS0209; T.K.) from the Japan Society for the Promotion of Science (JSPS) and by the 21st Century COE Program of "The Frontiers of Fundamental Chemistry Focusing on Molecular Dynamism" (T.K., E.D.B., and T.Y.) from the Ministry of Education, Culture, Sports, Science, and Technology. E.D.B. is thankful for financial support from the JSPS Postdoctoral Fellowship for Foreign Researchers.
Fabrication of Cellular Multilayers with Nanometer-Sized Extracellular Matrix FilmsFNR HREF="nss"> FN ID="nss"> This work was supported by an Industrial Technology Research Grant Program in 2006 (06B44017a) from NEDO of Japan, partly by a Grant-in-Aid for Young Scientists (No. 18700426), the Mazda Foundation (05KK-241), and Osaka University 21st Century COE program "Center for Integrated Cell and Tissue Regulation".
Total Synthesis of (+)-Azaspiracid-1. Part I: Synthesis of the Fully Elaborated ABCD AldehydeFNR HREF="nss"> FN ID="nss"> Financial support has been provided by the National Institutes of Health (GM-33328-20), the Merck Research Laboratories, Amgen, and Eli Lilly. Fellowships were provided to L.K. by the Villum Kann Rasmussen and the Carlsberg Foundations (Denmark), to J.A.M. by the National Institutes of Health, to T.B.D. by the National Science Foundation, to A.B. by the NSERC (Canada), and to M.J. by the Technical University of Denmark.
Total Synthesis of (+)-Azaspiracid-1. Part II: Synthesis of the EFGHI Sulfone and Completion of the SynthesisFNR HREF="nss"> FN ID="nss"> Financial support has been provided by the National Institutes of Health (GM-33328-20), the Merck Research Laboratories, Amgen, and Eli Lilly. Fellowships were provided to T.B.D. by the National Science Foundation, to L.K. by the Villum Kann Rasmussen and the Carlsberg Foundations (Denmark), to A.B. by the NSERC (Canada), to J.A.M. by the National Institutes of Health, and to M.J. by the Technical University of Denmark.
Total Synthesis and Stereochemistry of UncialamycinFNR HREF="nss"> FN ID="nss"> We thank Dr. D. H. Huang and Dr. G. Siuzdak for assistance with NMR spectroscopy and mass spectrometry, respectively, and Dr. R. K. Chadha for X-ray analysis. Financial support for this work was provided by The Skaggs Institute for Chemical Biology and a National Defense Science and Engineering Graduate fellowship (J.S.C.). J.J.C. acknowledges a Fullbright-AstraZeneca Research Fellowship.
Total Synthesis and Revised Structure of Biyouyanagin AFNR HREF="nss"> FN ID="nss"> We thank Dr. D. H. Huang and Dr. L. Pasterneck for NMR spectroscopy, and Dr. D. Siuzak and Dr. R. Chadha for mass spectrometry and X-ray crystallography, respectively. Financial support for this work was provided by the National Institutes of Health (USA) and the Skaggs Institute for Chemical Biology.
Adamantaplatensimycin: A Bioactive Analogue of PlatensimycinFNR HREF="nss"> FN ID="nss"> We wish to thank Dr. D. H. Huang, Dr. G. Siuzdak, and Dr. R. Chadha for assistance with NMR spectroscopy, mass spectrometry, and X-ray crystallography, respectively. We also thank A. L. Nold for assistance with HPLC. This work is funded in part by a grant from the National Science Foundation (0603217).
Construction of the "Left Domain" of HaplophytineFNR HREF="nss"> FN ID="nss"> We thank Ms. Doris Tan (ICES) for assistance with high-resolution mass spectrometry (HRMS) and Dr. Tommy Wang Chern Hoe (Institute of Molecular and Cell Biology (IMCB), A*STAR) for X-ray crystallographic analysis. Financial support for this work was provided by A*STAR, Singapore.
A Distinctive Organocatalytic Approach to Complex Macromolecular ArchitecturesFNR HREF="nss"> FN ID="nss"> R.M.W., M.K.K., and J.L.H. acknowledge support from the NSF (CPIMA: NSF-DMR-0213618, GOALI: NSF-CHE-0313993). O.C. acknowledges the FRIA for financial support. This work was partially supported by the Belgian Federal Office of Science Policy (SSTC-PAI-5-3). We thank Purac for the donation of lactide.
Hydrogen Peroxide Triggered Prochelator Activation, Subsequent Metal Chelation, and Attenuation of the Fenton ReactionFNR HREF="nss"> FN ID="nss"> We thank the American Parkinson Disease Association, National Parkinson Foundation, and University of Massachusetts Dartmouth for their support of this work. This publication or project was made possible by grant number 1 R21 AT002743-01A2 from the National Center for Complementary and Alternative Medicine (NCCAM). Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the NCCAM, or the National Institutes of Health.
Substrate-Controlled Asymmetric Total Synthesis of (+)-Microcladallene B with a Bromination Strategy Based on a Nucleophile-Assisting Leaving GroupFNR HREF="nss"> FN ID="nss"> This research was supported by a Korea Research Foundation Grant (KRF-2004-015-C00272) and the Brain Korea Project in 2005 and 2006.
Asymmetric Oxidation Catalysis by a Chiral Al(salalen) Complex: Highly Enantioselective Oxidation of Sulfides with Aqueous Hydrogen PeroxideFNR HREF="nss"> FN ID="nss"> Financial support (Specially Promoted Research 18002011) through a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, and Culture, Japan is gratefully acknowledged. K.M. and B.S. are grateful for JSPS Research Fellowships for Young Scientists. Salalen refers to a hybrid salan-salen tetradentate ligand.
A Formally Zwitterionic Ruthenium Catalyst Precursor for the Transfer Hydrogenation of Ketones that Does Not Feature an Ancillary Ligand N&bond;H FunctionalityFNR HREF="nss"> FN ID="nss"> Acknowledgement is made to the Natural Sciences and Engineering Research Council of Canada (including a Postgraduate Scholarship for M.A.R.), the Canada Foundation for Innovation, the Nova Scotia Research and Innovation Trust Fund, and Dalhousie University for their generous support of this work. We also thank Dr. Michael Lumsden (Atlantic Region Magnetic Resonance Center, Dalhousie) for assistance in the acquisition of NMR data.
A Formally Zwitterionic Ruthenium Catalyst Precursor for the Transfer Hydrogenation of Ketones that Does Not Feature an Ancillary Ligand NH Functionality
Lundgren, Rylan J.
/ Rankin, Matthew A.
/ McDonald, Robertet al.
| 2007
C&bond;H Bond Activation by Rhodium(I) Hydroxide and Phenoxide ComplexesFNR HREF="nss"> FN ID="nss"> This work was supported by the NSF as part of the Center for the Activation and Transformation of Strong Bonds (CATSB), Grant No. 0434568. We thank W. D. Jones and J. Kovach for helpful discussions. The crystal structure of 4 was solved by W. Kaminsky.
Synthesis and Evaluation of Modified Oligodeoxynucleotides Containing Diphosphodiester Internucleotide LinkagesFNR HREF="nss"> FN ID="nss"> We acknowledge the financial support from National Center for Research Resources, NIH, Grant Number 1 P20 RR16457. We thank Dr. Bongsup Cho for scientific discussion.
PtCl2-Catalyzed Hydrative Cyclization of Trialkyne Functionalities to Form Bicyclic Spiro KetonesFNR HREF="nss"> FN ID="nss"> We thank the National Science Council, Taiwan, for support of this work.
Systematically Probing the Effect of Catalyst Acidity in a Hydrogen-Bond-Catalyzed Enantioselective ReactionFNR HREF="nss"> FN ID="nss"> This work was supported by the National Science Foundation through a CAREER award to M.S.S. (CHE-132905). M.S.S. thanks the Dreyfus foundation (Teacher-Scholar) and Pfizer for their support.
Chemoenzymatic Enrichment of Phosphotyrosine-Containing PeptidesFNR HREF="nss"> FN ID="nss"> We thank Wei-Li Liao and Illarion Turko for MS-MS experiments.
IR Spectra of Protonated Carbonic Acid and Its Isomeric H3O+·CO2 ComplexFNR HREF="nss"> FN ID="nss"> This study was supported by the Deutsche Forschungsgemeinschaft (DO 729-2), the Fonds der Chemischen Industrie, and the Bavaria-California Technology Center (BaCaTeC).
Rh-Catalyzed Transannulation of Pyridotriazoles with Alkynes and NitrilesFNR HREF="nss"> FN ID="nss"> Financial support from the National Institutes of Health (GM-64444) is gratefully acknowledged.
Total Synthesis of the Antibiotic Erypoegin H and Cognates by a PtCl2-Catalyzed Cycloisomerization ReactionFNR HREF="nss"> FN ID="nss"> Generous financial support by the MPG and the Fonds der Chemischen Industrie is gratefully acknowledged. We thank Dr. R. Mynott and his team for expert NMR assistance and Umicore AG & Co KG, Hanau, for a gift of noble metal salts.
Synthesis of 1,3,4-Trisubstituted Isoquinolines by Iodine-Mediated Electrophilic Cyclization of 2-Alkynyl Benzyl AzidesFNR HREF="nss"> FN ID="nss"> We thank the Japanese Society for the Promotion of Science and the Center of Excellence for financial support.
Fibrous Aggregation of Magnetite Nanoparticles Induced by a Time-Varied Magnetic FieldFNR HREF="nss"> FN ID="nss"> This work is supported by grants from the National Natural Science Foundation of China (NSFC, 60571031, 60371027, 90406023, 90406024) and the National Basic Research Program of China (2006CB933206, 2006CB705600). J.F.S. is also thankful to The Foundation for Top Doctoral Candidate of Southeast University for financial support.
Totalsynthese des Thiazolylpeptids GE2270 AFNR HREF="nss"> FN ID="nss"> Dieses Projekt wurde von der Deutschen Forschungsgemeinschaft (Ba 1372-9), von der Alexander-von-Humboldt-Stiftung (Forschungsstipendium an O.D.), von der Universität Bayern e.V. (Doktorandenstipendium an H.M.M.) und vom Fonds der Chemischen Industrie gefördert. Wir danken den Firmen Wacker-Chemie (München), DSM Fine Chemicals (Linz) und Umicore (Hanau) für großzügige Chemikalienspenden. Herrn Dipl.-Chem. Jochen Klages danken wir für die Hilfe beim Aufnehmen der NMR-Spektren.
Ein anorganischer Cryptand: schrittweise Synthese und Koordination von Li+-IonenFNR HREF="nss"> FN ID="nss"> Diese Arbeit wurde von der Deutschen Forschungsgemeinschaft finanziell unterstützt. Die Autoren danken Herrn Dr. E. Matern (Universität Karlsruhe) für seine Hilfe bei den NMR-Experimenten sowie Herrn Prof. Dr. I. Krossing (Universität Freiburg) für eine Spende von Li[Al(ORF)4] und hilfreiche Anregungen bezüglich der Strukturanalyse von Verbindung 5.
Ein hoch enantiomerenangereichertes Lithiosilan durch selektive Spaltung einer Silicium-Phenyl-Bindung mit LithiumFNR HREF="nss"> FN ID="nss"> Wir danken der Deutschen Forschungsgemeinschaft und dem Fonds der Chemischen Industrie für die finanzielle Unterstützung dieser Arbeit und der Wacker Chemie AG für die Ausstattung mit speziellen Chemikalien.
Strukturelle Erfordernisse für Jasmonate und synthetische Analoga als Auslöser von Calciumsignalen im Zellkern und im Cytosol von PflanzenzellenFNR HREF="nss"> FN ID="nss"> Diese Arbeit wurde durch ein Marie-Curie-Stipendium (QLK3-CT-2001-60067) für A.W. unterstützt. Wir danken Dr. O. Miersch und Dr. C. Wasternack für die Überlassung von OPDA.
Direkte und markierungsfreie Detektion von festphasengebundenen Substanzen durch oberflächenverstärkte Raman-StreuungFNR HREF="nss"> FN ID="nss"> Wir danken der DFG (SFB 630, TP A3 und C1) und dem Fonds der Chemischen Industrie für finanzielle Unterstützung.
Stereospezifischer Styroleinbau an einem Titanzentrum mit einem helicalen Ligandengerüst: Hinweis auf die Bildung von homochiralem PolystyrolFNR HREF="nss"> FN ID="nss"> Diese Arbeit wurde vom Fonds der Chemischen Industrie und der Deutschen Forschungsgemeinschaft gefördert. R.M. dankt der Alexander von Humboldt-Stiftung für ein Forschungsstipendium; G.J.M. dankt dem Graduiertenkolleg 440 ("Methoden der asymmetrischen Synthese") für ein Stipendium. Wir danken Prof. M. Schmidt, Universität Mainz, für die Messung der MALDI-TOF-Massenspektren.