Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of indole-based drug candidates. Its protected indole structure allows selective functionalization at specific positions, making it valuable in medicinal chemistry for creating analogs with potential biological activity. Commonly employed in cross-coupling reactions, such as Suzuki or Heck reactions, to introduce aryl or vinyl groups, facilitating the construction of complex heterocyclic systems found in bioactive molecules. The Boc group provides stability during reactions and can be easily removed under mild acidic conditions, enabling further derivatization in multi-step syntheses.