We describe an efficient new approach to the synthesis of azacyclic compounds that extends our recently developed methodology based on the oxidation of a furan ring with singlet oxygen followed by an intramolecular hetero Michael addition. The new approach gives access to the readily opened bicyclic lactones and novel tricyclic heterocycles containing the piperidine ring. (C) 2008 Elsevier Ltd. All rights reserved.
The furan approach to oxacycles. Part 4: A synthesis of (+)-decarestrictine L
摘要:
We describe an efficient new approach for the enantioselective synthesis of (+)-(2R,3S,6R)-decarestrictine L from commercially available starting material using our newly developed methodology based oil the oxidation of a furan ring with singlet oxygen followed by an intramolecular hetero Michael addition. (c) 2005 Elsevier Ltd. All rights reserved.