Synthesis of Enantiopure Bicyclic α,α-Disubstituted Spirolactams via Asymmetric Birch Reductive Alkylation
作者:Stéphanie M. Guéret、Patrick D. O’Connor、Margaret A. Brimble
DOI:10.1021/ol8029017
日期:2009.2.19
The synthesis of enantiopure bicyclic α,α-disubstituted spirolactams is described using a diastereoselective Birchreductive alkylation as the key step. Hydrogenation of the resultant alkylated cyclohexadienes followed by intramolecular cyclization provides access to enantiopure 8-azaspiro[5.6]dodecan-7-ones.