Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of serotonin receptor modulators and other central nervous system agents. Its protected indole structure allows selective functionalization at multiple positions, making it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in coupling reactions such as Suzuki or Buchwald-Hartwig to introduce aryl or amine substituents. Also utilized in the preparation of bioactive molecules for research in neuropharmacology and oncology.