Fmoc-isoleucinol is widely used in peptide synthesis as a building block. It serves as a protected form of isoleucinol, allowing for the controlled addition of amino acids during solid-phase peptide synthesis. The Fmoc group provides temporary protection for the amino group, which can be easily removed under mild conditions, ensuring the integrity of the peptide chain. This compound is particularly valuable in the production of complex peptides and proteins for pharmaceutical research, enabling the study of biological processes and the development of therapeutic agents. Its application extends to the creation of peptidomimetics and other bioactive molecules, making it a crucial tool in drug discovery and biochemical studies.