Methyl 2-amino-2-methyl-3-phenylpropanoate hydrochloride is primarily used in organic synthesis as a key intermediate for the production of various pharmaceuticals. It plays a significant role in the development of compounds with potential therapeutic applications, particularly in the field of central nervous system (CNS) disorders. Its structure allows it to serve as a building block for the synthesis of molecules that may exhibit analgesic, anti-inflammatory, or neuroprotective properties. Additionally, it is utilized in research settings to study the structure-activity relationships of bioactive compounds, aiding in the design of new drugs with improved efficacy and safety profiles.