N-Cbz-D-Leucine丨CAS 28862-79-5

N-Cbz-D-Leucine (CAS 28862-79-5) is a protected amino acid derivative extensively used in peptide synthesis, medicinal chemistry, and pharmaceutical development. The N-Cbz (benzyloxycarbonyl) protecting group safeguards the amino functionality, allowing selective activation of the carboxyl group for coupling reactions. It serves as a building block for the preparation of D-leucine-containing peptides, peptidomimetics, and enzyme inhibitors, which are important in drug discovery and therapeutic peptide design. Additionally, it is used in research for structure–activity relationship (SAR) studies, facilitating the exploration of stereochemistry and its effects on biological activity.

The benefits of N-Cbz-D-Leucine derive from its chemical stability, stereochemical integrity, and ease of incorporation into peptide chains. The Cbz protecting group is acid-labile and can be removed under mild conditions without racemization, preserving the D-stereochemistry crucial for biological activity. Its carboxyl group is readily activated for peptide bond formation using standard coupling reagents, enabling efficient synthesis of peptides with high purity and yield. The D-leucine residue contributes to proteolytic stability, enhancing the metabolic resistance and bioactivity of peptide sequences. Furthermore, the compound is compatible with both solution-phase and solid-phase peptide synthesis methodologies.