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First total synthesis of the 7-oxygenated carbazole alkaloids clauszoline-K, 3-formyl-7-hydroxycarbazole, clausine M, clausine N and the anti-HIV active siamenol using a highly efficient…
- M. Krahl, Anne Jäger, T. Krause, H. Knölker
- ChemistryOrganic & biomolecular chemistry
- 16 August 2006
Using a convergent palladium-catalyzed construction of the carbazole framework as the key step we have achieved a short synthesis of the 7-oxygenated carbazole alkaloids clauszoline-K,…
Synthesis and molluscicidal activity of new chromene and pyrano[2,3-c]pyrazole derivatives.
- F. M. Abdelrazek, P. Metz, O. Kataeva, Anne Jäger, S. F. El-Mahrouky
- ChemistryArchiv der Pharmazie
- 5 December 2006
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Investigations of peptides and proteases in green coffee beans
- E. Ludwig, U. Lipke, Ulrike Raczek, Anne Jäger
- Chemistry
- 4 July 2000
Cof. canephora var. robusta. The coffee types were not significantly different in peptide content, but were significantly different in peptide composition. Peptides with weakly acid pI values were…
Synthesis and Molluscicidal Activity of New Chromene and Pyrano[2,3‐c]pyrazole Derivatives
- F. M. Abdelrazek, P. Metz, O. Kataeva, Anne Jäger, S. F. El-Mahrouky
- Chemistry
- 1 October 2007
The chromene derivative 4 reacts with acetic anhydride, phenylisothiocyanate and ethyl orthoformate to afford the N‐acetyl derivative 6, the chromenopyrimidine 8 and the formimidate 9, respectively.…
A practical access to highly enantiomerically pure flavanones by catalytic asymmetric transfer hydrogenation.
- Marie‐Kristin Lemke, P. Schwab, P. Metz
- ChemistryAngewandte Chemie
- 25 October 2013
A surprisingly selective, non-enzymatic kinetic resolution of readily available, racemic β-chiral ketones enabled the title process, which was applied to a rapid synthesis of several bioactive…
Transition metals in organic synthesis - Part 83#: Synthesis and pharmacological potential of carbazoles
- T. Choi, R. Czerwonka, H. Knölker
- Chemistry, BiologyMedicinal Chemistry Research
- 10 January 2008
TLDR
Snapshot of the palladium(II)-catalyzed oxidative biaryl bond formation by X-ray analysis of the intermediate diaryl palladium(II) complex.
- T. Gensch, Marika Rönnefahrt, H. Knölker
- ChemistryChemistry
- 16 January 2012
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First total synthesis of clausine L and pityriazole, a metabolite of the human pathogenic yeast Malassezia furfur.
- Ronny Forke, Anne Jäger, H. Knölker
- ChemistryOrganic & biomolecular chemistry
- 4 July 2008
The first total synthesis of the alkaloid pityriazole is described using three consecutive palladium-catalyzed coupling reactions.
Efficient iron-mediated approach to pyrano[3,2-a]carbazole alkaloids--first total syntheses of O-methylmurrayamine A and 7-methoxymurrayacine, first asymmetric synthesis and assignment of the…
- Konstanze K. Gruner, T. Hopfmann, Kazuhiro Matsumoto, Anne Jäger, T. Katsuki, H. Knölker
- ChemistryOrganic & biomolecular chemistry
- 16 March 2011
Iron-mediated oxidative cyclisation provides an efficient approach to pyrano[3,2-a]carbazole alkaloids. Thus, improved routes to girinimbine and murrayacine as well as the first total syntheses of…
Palladium(II)-catalysed total synthesis of naturally occurring pyrano[3,2-a]carbazole and pyrano[2,3-b]carbazole alkaloids.
- Ronny Hesse, Anne Jäger, A. W. Schmidt, H. Knölker
- ChemistryOrganic & biomolecular chemistry
- 21 May 2014
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