Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the preparation of beta-blockers and other cardiovascular agents. Its stereochemistry allows for selective interactions in biological systems, making it valuable in asymmetric synthesis. Commonly employed in the development of adrenergic receptor modulators due to the presence of both hydroxyl and amino functional groups in a chiral configuration. Also utilized in the preparation of protease inhibitors and other bioactive molecules where enantiomeric purity is critical.