Used in peptide synthesis as a protecting group for threonine, ensuring selective reactions during the formation of peptide bonds. It helps prevent unwanted side reactions by blocking the amino and carboxyl groups, allowing precise control over the assembly of amino acids in complex peptide chains. Commonly applied in the production of pharmaceuticals and bioactive peptides, where high purity and specific sequences are critical. Its stability under various reaction conditions makes it a valuable tool in organic and medicinal chemistry research.