Used as an intermediate in pharmaceutical synthesis, particularly in the development of bioactive molecules and drug candidates. Its structure allows for selective modifications, making it valuable in medicinal chemistry for creating sulfonamide-based compounds with potential therapeutic effects. Commonly employed in research settings to build more complex molecules targeting enzymes or receptors. The tert-butyl ester group protects the carboxylic acid during reactions and can be removed under mild acidic conditions when needed, enabling stepwise synthesis.