Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Kim, Messer"'
Autor:
Karl Peters, Doris Feineis, Gerhard Bringmann, Katja Maksimenka, Jörg Mühlbacher, Miriam Münchbach, Ralf God, Kim Messer, Eva-Maria Peters, Klaus-Peter Gulden
Publikováno v:
Tetrahedron. 60:8143-8151
Separation and stereochemical attribution of the two enantiomers of the neurotoxin 1-trichloromethyl-1,2,3,4-tetrahydro-β-carboline (TaClo) has been achieved by applying chromatography on a chiral phase HPLC column in hyphenation with circular dichr
Autor:
Matthias Reichert, Gábor Tóth, Matthias Breuning, Michaela Schraut, Robert-Michael Pfeifer, Kim Messer, Gerhard Bringmann
Publikováno v:
Zeitschrift für Naturforschung B. 59:100-105
The first X-ray structure analysis of authentic, not derivatized (racemic) trans-isoshinanolone, a wide-spread acetogenic tetralone, is described. In the crystal, two slightly different conformers are found, along with the corresponding enantiomers.
Publikováno v:
Phytochemistry. 62:345-349
The isolation, structural elucidation, and antiprotozoal activities of habropetaline A, a novel naphthylisoquinoline alkaloid from Triphyophyllum peltatum , are described. This alkaloid had previously only been identified on line, by the LC–MS/MS
Autor:
Peter Proksch, Victor Wray, Rainer Ebel, Gerhard Bringmann, Jörg Mühlbacher, Michael Dreyer, Kim Messer, Bambang W. Nugroho
Publikováno v:
Journal of Natural Products. 66:80-85
Two rocaglamide-related natural products, the previously known compound 6-demethoxy-10-hydroxy-11-methoxy-6,7-methylendioxyrocaglamide (3), and cyclorocaglamide (4), its 8b,10-anhydro analogue, have been isolated from the tropical plant Aglaia oligop
Publikováno v:
Journal of Natural Products. 65:1096-1101
Four new naphthylisoquinoline alkaloids, ancistrocongolines A-D (4-7) were isolated from Ancistrocladus congolensis, along with the known compound korupensamine A (8). Structural elucidation was achieved by chemical, spectroscopic, and chiroptical me
Autor:
Kim Messer, Reto Brun, Jörg Mühlbacher, Gerhard Bringmann, Adriaan M. Louis, Matthias Grüne, Kristina Wolf
Publikováno v:
Phytochemistry. 60:389-397
The isolation and structural elucidation of dioncophylline E, a novel naphthylisoquinoline alkaloid from the rare West African liana Dioncophyllum thollonii, is described. The alkaloid displays an unusual 7,3'-linkage between the naphthalene and the
Autor:
Gerhard Bringmann, Kim Messer, Miriam Münchbach, Stefanie Diem, Wilfried Kuhn, Markus Herderich, Hans-Willi Clement, Christine Stichel-Gunkel, Doris Feineis
Publikováno v:
Journal of Chromatography B. 767:321-332
An improved sensitive assay for the determination of the dopaminergic and serotonergic neurotoxin 1-trichloromethyl-1,2,3,4-tetrahydro-β-carboline (TaClo) is presented, based upon on-line coupling of high-performance liquid chromatography with elect
Publikováno v:
Phytochemistry. 56:387-391
The absolute configuration of (+)-isoshinanolone, a wide-spread acetogenic metabolite from higher plants, has been determined by X-ray structure analysis of its new dibromide; accordingly, this natural tetralone is 3R,4R-configured, in agreement with
Publikováno v:
Tetrahedron. 56:5871-5875
The synthesis of jozipeltine A (5), the 6′-coupled constitutionally symmetric dimer of the highly antimalarial naphthylisoquinoline alkaloid dioncopeltine A (4), is described. After selective protection of two of the four OH- and NH-functionalities
Publikováno v:
Synthesis. 2000:1843-1847