Stereoselective synthesis of conformationally restricted analogues of aspartic and glutamic acids from endocyclic enecarbamates
作者:Marcos JoséS. Carpes、Paulo Cesar M.L. Miranda、Carlos Roque D. Correia
DOI:10.1016/s0040-4039(97)00238-4
日期:1997.3
The stereoselective synthesis of cyclic amino acids incorporating the core framework of aspartic acid and glutamic acids were accomplished from a common intermediate. Oxidative cleavage of an aza-bicyclic-dichlorocyclobutanone/pentanone with followed by ozonolysis furnished the amino acid derivatives in good overall yields in a three-step sequence. This protocol was also applied to the synthesis of