Lipase-Catalyzed Kinetic Resolution of 2-Phenylethanol Derivatives and Chiral Oxa-Pictet-Spengler Reaction as the Key Steps in the Synthesis of Enantiomerically Pure Tricyclic Amines
作者:Christian Ketterer、Bernhard Wünsch
DOI:10.1002/ejoc.201101800
日期:2012.4
receptors). The first key step of the synthesis was a chiral oxa-Pictet–Spengler reaction with enantiomerically pure 2-phenylethanol derivatives (S)- and (R)-14. After transformation of the dimethylamide 18 into the ester 19, the tricyclic system 20 was established by Dieckmann cyclization reaction. Finally, amino moieties were introduced diastereoselectively into the 6-position by reductive amination