Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of central nervous system agents and bronchodilators. It serves as a building block for beta-2 adrenergic agonists, which are important in treating respiratory conditions like asthma and chronic obstructive pulmonary disease (COPD). Its structure allows for modification into active drug compounds that target specific receptors involved in smooth muscle relaxation. Also utilized in research settings for designing new bioactive molecules and optimizing drug candidates.