Artikel ; Online: Total Synthesis of (±)-Corymine.
Angewandte Chemie (International ed. in English)
2017 Band 56, Heft 26, Seite(n) 7484–7487
Abstract: The first total synthesis of the hexacyclic indole alkaloid (±)-corymine is described. Starting from the readily available N-protected tryptamine, the title compound was achieved in 21 steps in 3.4 % overall yield. Key steps of the synthesis include: a) ... ...
Abstract | The first total synthesis of the hexacyclic indole alkaloid (±)-corymine is described. Starting from the readily available N-protected tryptamine, the title compound was achieved in 21 steps in 3.4 % overall yield. Key steps of the synthesis include: a) the addition of a malonate to a 3-bromooxindole to afford 3,3-disubstituted oxindole, b) the formation of a 12-membered cyclic enol ether by intramolecular O-propargylation, immediately followed by propargyl Claisen rearrangement to provide the α-allenyl ketone stereospecifically, c) DMDO oxidation to install a hydroxy group in a highly stereoselective manner, and d) the SmI |
---|---|
Mesh-Begriff(e) | Alkaloids/chemical synthesis ; Alkaloids/chemistry ; Indole Alkaloids/chemical synthesis ; Indole Alkaloids/chemistry ; Ketones/chemistry ; Magnetic Resonance Spectroscopy ; Molecular Structure ; Oxidation-Reduction ; Stereoisomerism ; X-Ray Diffraction |
Chemische Substanzen | Alkaloids ; Indole Alkaloids ; Ketones ; corymine (6472-42-0) |
Sprache | Englisch |
Erscheinungsdatum | 2017-05-23 |
Erscheinungsland | Germany |
Dokumenttyp | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2011836-3 |
ISSN | 1521-3773 ; 1433-7851 |
ISSN (online) | 1521-3773 |
ISSN | 1433-7851 |
DOI | 10.1002/anie.201704086 |
Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
Volltext online
Zusatzmaterialien
Kategorien
Über subito bestellen
Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.