Cyclopropylglycine is primarily used in the field of medicinal chemistry and drug development. It serves as a key building block in the synthesis of various pharmaceutical compounds, particularly those targeting neurological disorders. Its unique structure allows it to act as a mimic for natural amino acids, making it valuable in the design of peptide-based drugs and enzyme inhibitors. Additionally, it is utilized in research to study the role of amino acid derivatives in biological systems, aiding in the development of treatments for conditions such as epilepsy, depression, and neurodegenerative diseases. Its incorporation into peptides can enhance their stability and bioavailability, making it a crucial component in the creation of therapeutic agents.