Used in the synthesis of pharmaceutical intermediates, particularly in the development of central nervous system agents. It serves as a chiral building block for drugs targeting neurological disorders due to its structural similarity to glycine and ability to interact with neurotransmitter receptors. Commonly employed in the preparation of anticonvulsants and muscle relaxants. Its stereochemistry enhances selectivity in receptor binding, improving drug efficacy and reducing side effects. Also utilized in research for developing novel NMDA receptor modulators.