Synthesis of Optically Active Amino Acid Derivatives via Dynamic Kinetic Resolution

Publisher Website
Google Scholar
Abstract
The complete conversion of racemic amino acid amides to optically active amino acid derivatives was accomplished via lipase/palladium-catalyzed dynamic kinetic resolution (DKR). In the DKR, a lipase catalyzes the selective acylation of l-substrate in the presence of acyl donor while unreacted d-substrate is isomerized by a Pd nanocatalyst to l-substrate. The DKR reactions provided good yields (80−98%) and high enantiomeric excess (95−98% ee). Interestingly, the DKR reactions of phenylglycine amide in the presence of Z-Gly-OMe or Z-Gly-Gly-OMe yielded optically active di- and tripeptide .