Proline-Catalyzed, Asymmetric Mannich Reactions in the Synthesis of a DPP-IV Inhibitor
作者:Jacob M. Janey、Yi Hsiao、Joseph D. Armstrong
DOI:10.1021/jo0519458
日期:2006.1.1
A highly stereoselective l-proline-catalyzed, asymmetric direct Mannichreaction between a glyoxalate-derived imine and phenyl acetaldehyde was employed for the formation of a syn substituted β-phenyl homoserine. This Mannich adduct was then readily elaborated to a functionalized β-phenyl aspartic acid derivative through a series of mild and efficient transformations.