Search Results - "GIESA, Sabine"

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  1. 1

    Influence of biotransformation of luteolin, luteolin 7-O-glucoside, 3',4'-dihydroxyflavone and apigenin by cultured rat hepatocytes on antioxidative capacity and inhibition of EGF receptor tyrosine kinase activity by Schlupper, Doreen, Giesa, Sabine, Gebhardt, Rolf

    Published in Planta medica (01-06-2006)
    “…Flavonoids are known as biologically active compounds. Although this has been shown by several in vivo studies, it is still elusive whether their metabolites…”
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    Moenomycin analogues with modified lipid side chains from indium-mediated Barbier-type reactions by Vogel, Stefan, Stembera, Katherina, Hennig, Lothar, Findeisen, Matthias, Giesa, Sabine, Welzel, Peter, Lampilas, Maxime

    Published in Tetrahedron (07-05-2001)
    “…From moenomycin A both the chromophore part and the lipid side chain were degraded by ozonolysis to give an analogue with a glycolaldehyde unit in 2-position…”
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  5. 5

    Preparation and characterisation of C119 by Gromov, Andrei, Ballenweg, Stephan, Giesa, Sabine, Lebedkin, Sergei, Hull, William E., Krätschmer, Wolfgang

    Published in Chemical physics letters (28-03-1997)
    “…Thermolysis of C120O at 550–600°C yielded a soluble product fraction containing C60, C119 and higher-mass species. Using a two-step HPLC procedure two species,…”
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    Synthesis of Methyl (R)-2-O-Propargylglycerate, a Precursor to Analogues of the 2-O-Alkylglycerate Part of the Moenomycins by Mansourova, Madina, Rohr, Katja, Hennig, Lothar, Findeisen, Matthias, Oehme, Ramona, Giesa, Sabine, Welzel, Peter

    Published in European journal of organic chemistry (01-07-2003)
    “…Conditions allowing optically active methyl glycerate to be converted, without racemization, into the 2‐O‐propargyl derivative, via the 2‐O‐allyl derivative,…”
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  7. 7

    Negative-ion low-temperature fast-atom bombardment mass spectrometry of monomeric and dimeric [60]fullerene compounds by Gross, Jürgen H., Giesa, Sabine, Krätschmer, Wolfgang

    Published in Rapid communications in mass spectrometry (15-05-1999)
    “…Negative‐ion low‐temperature fast‐atom bombardment mass spectrometry (LT‐FAB‐MS) is applied to monomeric and dimeric [60]fullerene compounds. LT‐FAB mass…”
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  8. 8

    Studies on the interaction of the antibiotic moenomycin A with the enzyme Penicillin-binding protein 1b by RÜHL, Thomas, DAGHISH, Mohammed, OEHME, Ramona, GIESA, Sabine, AYALA, Juan, WELZEL, Peter, BUCHYNSKYY, Andrij, BARCHE, Karen, VOLKE, Daniela, STEMBERA, Katherina, KEMPIN, Uwe, KNOLL, Dietmar, HENNIG, Lothar, FINDEISEN, Matthias

    Published in Bioorganic & medicinal chemistry (03-07-2003)
    “…The interaction of a moenomycin derivative with the enzyme penicillin binding protein 1b (PBP 1b) has been studied by means of STD NMR. The results obtained…”
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  9. 9

    Studies on the Synthesis of Trisaccharide Analogues of the Antibiotic Moenomycin A by Yang, Guangbin, Hennig, Lothar, Findeisen, Matthias, Oehme, Ramona, Giesa, Sabine, Welzel, Peter

    Published in Helvetica chimica acta (01-07-2004)
    “…A new approach for the synthesis of moenomycin trisaccharide analogues is reported in which three monosaccharide building blocks are used and allows the…”
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    Moenomycin analogues with long-chain amine lipid parts from reductive aminations by Vogel, Stefan, Stembera, Katherina, Hennig, Lothar, Findeisen, Matthias, Giesa, Sabine, Welzel, Peter, Tillier, Claire, Bonhomme, Christian, Lampilas, Maxime

    Published in Tetrahedron (07-05-2001)
    “…From a moenomycin A glycolic aldehyde degradation product lacking the chromophore unit and most of the lipid part, a number of amines were prepared by…”
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  11. 11

    Synthesis of Fluorescent Derivatives of the Antibiotic Moenomycin A by Buchynskyy, Andrij, Kempin, Uwe, Vogel, Stefan, Hennig, Lothar, Findeisen, Matthias, Müller, Dietrich, Giesa, Sabine, Knoll, Helmut, Welzel, Peter

    Published in European journal of organic chemistry (01-04-2002)
    “…Moenomycin has been highly selectively converted into amino derivative 3b. The primary amino group of this compound can be used to attach various fluorescent…”
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    A cross metathesis-based synthesis of analogues of the 2- O-alkyl glycerate part of the moenomycins by Eichelberger, Uwe, Mansourova, Madina, Hennig, Lothar, Findeisen, Matthias, Giesa, Sabine, Müller, Dietrich, Welzel, Peter

    Published in Tetrahedron (26-11-2001)
    “…Conditions are reported which allow to convert optically active methyl glycerate to the 2- O-allyl derivative without racemization. Cross metathesis reactions…”
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  14. 14

    Synthesis of analogues of the 2- O-alkyl glycerate part of the moenomycins by Eichelberger, Uwe, Neundorf, Ines, Hennig, Lothar, Findeisen, Matthias, Giesa, Sabine, Müller, Dietrich, Welzel, Peter

    Published in Tetrahedron (14-01-2002)
    “…The title compounds have been prepared by hydroxymethylation of chiral enolates The title compounds have been prepared by hydroxymethylation of chiral enolates…”
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    Synthesis of a complex disaccharide precursor of phosphonate analogues of the antibiotic moenomycin A 12 by Ajaj, Khalid Abu, Hennig, Lothar, Findeisen, Matthias, Giesa, Sabine, Müller, Dietrich, Welzel, Peter

    Published in Tetrahedron (2002)
    “…An approach for the synthesis of moenomycin A 12 C-glycoside partial structures is reported. An approach for the synthesis of moenomycin A 12 C-glycoside…”
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  16. 16

    On Penicillin-Binding Protein 1b Affinity-Labeling Reagents by Volke, Daniela, Daghish, Mohammed, Hennig, Lothar, Findeisen, Matthias, Giesa, Sabine, Oehme, Ramona, Welzel, Peter

    Published in Helvetica chimica acta (01-12-2003)
    “…The synthesis of some 3‐aryl‐3‐(trifluoromethyl)3H‐diazirine and benzophenone‐based photoaffinity labels is reported. The photolabile group is bound to a…”
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  17. 17

    Studies on the Synthesis of Di- and Trisaccharide Analogues of Moenomycin A. Modifications in Unit E and in the Lipid Part by Yang, Guangbin, Mansourova, Madina, Hennig, Lothar, Findeisen, Matthias, Oehme, Ramona, Giesa, Sabine, Welzel, Peter

    Published in Helvetica chimica acta (01-07-2004)
    “…Routes allowing the synthesis of moenomycin analogues with one modified sugar component and with new lipid parts were developed (see 10c, 12c, 16b, and 20b in…”
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    Synthesis of a building block for phosphonate analogues of moenomycin A 12 from d-tartaric acid by Zahra, Jalal, Hennig, Lothar, Findeisen, Matthias, Giesa, Sabine, Welzel, Peter, Müller, Dietrich, Sheldrick, William S

    Published in Tetrahedron (2001)
    “…An approach for the synthesis of moenomycin A 12 C-glycoside partial structures is reported based on allyltin chemistry. An approach for the synthesis of…”
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    Tetrafunctional Photoaffinity Labels Based on Nakanishi's m-Nitroalkoxy-Substituted Phenyltrifluoromethyldiazirine by Daghish, Mohammed, Hennig, Lothar, Findeisen, Matthias, Giesa, Sabine, Schumer, Frank, Hennig, Horst, Beck-Sickinger, Annette G., Welzel, Peter

    Published in Angewandte Chemie International Edition (03-07-2002)
    “…Two generally applicable reagents for photoaffinity probes have been developed. They contain an m‐nitrophenyl ether function with a trifluoromethyldiazirine…”
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    A Method for the Introduction of Reporter Groups into Moenomycin A, Based on Thiouronium Salt Chemistry by Buchynskyy, Andrij, Stembera, Katherina, Hennig, Lothar, Findeisen, Matthias, Giesa, Sabine, Welzel, Peter

    Published in European journal of organic chemistry (01-04-2002)
    “…p‐Alkoxy‐substituted cinnamylthiouronium salts 7, 13, 21a, and 21b reacted selectively with the 2‐acylamino‐1,3‐cyclopentanedione unit A of moenomycin A (1) to…”
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