Enantiomers of all-cis-5-(4-bromophenyl)-4-tert-butoxycarbonyl-2-methoxycarbonylpyrrolidine: preparative HPLC separation and acylative kinetic resolution of the racemate

The fundamental possibility of acylative kinetic resolution of racemic heterocyclic amines was demonstrated by the example of all- cis -5-(4-bromophenyl)-4- tert -butoxycarbonyl-2-methoxycarbonylpyrrolidine. Individual enantiomers ( ee >99%) were obtained in high yields via preparative chiral HPLC.