D-Homoproline is primarily used in the field of pharmaceutical research and development. It serves as a key intermediate in the synthesis of various bioactive compounds and peptide-based drugs. Its unique structure allows it to mimic natural amino acids, making it valuable in designing peptide analogs that can enhance drug stability and bioavailability. Additionally, it is utilized in the study of enzyme inhibitors and receptor binding, contributing to the development of targeted therapies for diseases such as cancer and neurological disorders. In medicinal chemistry, D-Homoproline is also employed to modify the pharmacokinetic properties of drug candidates, improving their efficacy and reducing side effects.