Browsing by Subject "chemical structure"

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  • Paleek, Jiri; Zweigerdt, Robert; Olmer, Ruth; Martin, Ulrich; Kirschning, Andreas; Dräger, Gerald (Cambridge : Royal Society of Chemistry, 2011)
    A practical synthesis of the Rho-Kinase inhibitor Y-27632 and two new fluoro derivatives was achieved in seven steps and with a good overall yield of 45% starting from commercially available (R)-1-phenylethylamine. Compared ...
  • Weizbauer, Andreas; Modrejewski, Christian; Behrens, Sabine; Klein, Helmut; Helmecke, Patrick; Seitz, Jan-Marten; Windhagen, Henning; Möhwald, Kai; Reifenrath, Janin; Waizy, Hazibullah (London : SAGE Publications Ltd., 2014)
    In this in vitro study, magnesium plates of ZEK100 and MgCa0.8 alloy similar to common titanium alloy osteosynthesis plates were investigated as degradable biomedical materials with a focus on primary stability. Immersion ...
  • Godzik, G.; Block, T.; Pfnür, Herbert (College Park, MD : American Physical Society, 2003)
    The low coverage phase transitions of the (formula presented) and the (formula presented) chain structures of the Sr/Mo(112) system have been investigated with low-energy electron diffraction (LEED) at constant coverages. ...
  • Strotmann, Markus; Wartchow, Rudolf; Butenschön, Holger (Gainesville : Arkat USA, 2004)
    Tetracarbonyl(norbornadiene)chromium(0) was used as complexation reagent in the synthesis of tetracarbonylchromium chelate complexes of dppe, dppb, dppf, DIOP, BINAP, and Tol-BINAP. In all cases the reactions took place ...
  • Schöttner, M.; Ganßer, D.; Spiteller, G. (Berlin : De Gruyter, 1997)
    Lignans bind to sex hormone-binding globulin (SHBG). The lignan with the highest binding affinity is (±)-3,4-divanillyltetrahydrofuran. In a double Stobbe condensation - without use of protecting groups - a wide variety ...
  • Medema, Marnix H.; Kottmann, Renzo; Yilmaz, Pelin; Cummings, Matthew; Biggins, John B.; Cox, Russell J.; et al. (London : Nature Publishing Group, 2015)
    A wide variety of enzymatic pathways that produce specialized metabolites in bacteria, fungi and plants are known to be encoded in biosynthetic gene clusters. Information about these clusters, pathways and metabolites is ...
  • Miroshnichenko, Andrey E.; Evlyukhin, Andrey B.; Yu, Ye Feng; Bakker, Reuben M.; Chipouline, Arkadi; Kuznetsov, Arseniy I.; Luk'yanchuk, Boris; Chichkov, Boris; Kivshar, Yuri S. (London : Nature Publishing Group, 2015)
    Nonradiating current configurations attract attention of physicists for many years as possible models of stable atoms. One intriguing example of such a nonradiating source is known as "anapole". An anapole mode can be ...
  • Mattiza, Jens T.; Fohrer, Joerg G.G.; Duddeck, Helmut; Gardiner, Michael G.; Ghanem, Ashraf (Cambridge : Royal Society of Chemistry, 2011)
    Thirteen enantiopure paddlewheel-shaped dirhodium(II) tetrakiscarboxylate complexes have been checked for their efficiency in the dirhodium method (differentiation of enantiomers by NMR spectroscopy); six of them are new. ...
  • Mikhova, Bozhanka; Duddeck, Helmut; Taskova, Rilka M.; Mitova, Maya; Alipieva, Kalina (Berlin : De Gruyter, 2004)
    The aerial parts of Carthamus lanatus (Asteraceae) afforded four new oxygenated bisabolane fucosides, 10-hydroperoxy-bisabola-2,11-diene 7-O-β-D-fucopyranoside, 11-hydroperoxy-bisabola-2,9-diene 7-O-β-D-fucopyranoside, ...
  • Ernst, Wolfgang; Jonas, K.-L.; von Oeynhausen, V.; Tegenkamp, Christoph; Pfnür, Herbert (College Park, MD : American Physical Society, 2003)
    The Na-induced surface structures on Ge(100) at concentrations below 0.1 monolayer (ML) have been investigated with low-energy electron diffraction and with scanning tunneling microscopy (STM). Annealing and partial ...
  • Nauen, A.; Hohls, Frank; Maire, Niels; Pierz, Klaus; Haug, Rolf J. (College Park, MD : American Physical Society, 2004)
    We investigate the noise properties of a zero-dimensional InAs quantum dot (QD) embedded in a GaAs-AlAs-GaAs tunneling structure. We observe an approximately linear dependence of the Fano factor and the current as a function ...
  • Huang, Aisheng; Wang, Nanyi; Caro, Jürgen (Cambridge : Royal Society of Chemistry, 2012)
    Sandwich-structured composite zeolite membranes with enhanced hydrogen selectivity were prepared on porous α-Al 2O 3 supports by using 3-aminopropyltriethoxysilane as an interlayer. © 2012 The Royal Society of Chemistry.
  • Lesarri, Alberto; Vega-Toribio, Alicia; Suenram, Richard D.; Brugh, Dale J.; Nori-Shargh, Davood; Boggs, James E.; Grabow, Jens-Uwe (Cambridge : Royal Society of Chemistry, 2011)
    The conformational and structural properties of the inhalational anesthetic isoflurane (1-chloro-2,2,2-trifluoroethyl difluoromethyl ether) have been probed in a supersonic jet expansion using Fourier-transform microwave ...
  • Franke, Jana; Eichner, Simone; Zeilinger, Carsten; Kirschning, Andreas (Cambridge : Royal Society of Chemistry, 2013)
    Covering: 2005 to 2013 In this review recent progress in the development of heat shock proteins (Hsp90) in oncogenesis is illuminated. Particular emphasis is put on inhibitors such as geldanamycin and analogues that serve ...
  • Rand, Katrin; Noll, Claudia; Schiebel, Hans Martin; Kemken, Dorit; Dülcks, Thomas; Kalesse, Markus; Heinz, Dirk W.; Layer, Gunhild (Berlin : De Gruyter, 2010)
    During heme biosynthesis the oxygen-independent coproporphyrinogen III oxidase HemN catalyzes the oxidative decarboxylation of the two propionate side chains on rings A and B of coproporphyrinogen III to the corresponding ...
  • Barbier, Jenny; Gerth, Klaus; Jansen, Rolf; Kirschning, Andreas (Cambridge : Royal Society of Chemistry, 2012)
    The total synthesis of noricumazole B, a secondary metabolite from myxobacteria, was achieved. It established the glycan moiety to be D-α-arabinoside. © The Royal Society of Chemistry 2012.
  • Taubert, Johannes; Brüser, Thomas (Berlin : De Gruyter, 2014)
    Tat systems translocate folded proteins across biological membranes of prokaryotes and plant plastids. TatBC complexes recognize N-Terminal Tat signal peptides that contain a sequence motif with two conserved arginines ...
  • Oum, Kawon; Lohse, Peter W.; Flender, Oliver; Klein, Johannes R.; Scholz, Mirko; Lenzer, Thomas; Du, Juan; Oekermann, Torsten (Cambridge : Royal Society of Chemistry, 2012)
    The ultrafast photoinjection and subsequent relaxation steps of the indoline dye D149 were investigated in detail for a mesoporous electrodeposited ZnO thin film and compared with experiments on sintered TiO2 and ZrO2 thin ...