Fmoc-D-Phenylalaninol is a chiral building block used in the synthesis of peptides and peptidomimetics. It features the Fmoc (9-fluorenylmethoxycarbonyl) protecting group on the amino functionality of D-phenylalaninol, a reduced derivative of D-phenylalanine. This protection enables selective reactions in solid-phase peptide synthesis (SPPS) and other coupling methods, preventing unwanted side reactions during chain assembly. It is particularly valuable for incorporating amino alcohol units into peptide structures, facilitating the development of modified peptides for drug discovery, biochemical research, and the creation of enantiomerically pure pharmaceutical agents.