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 the nitrogen and aromatic ring, making it valuable in medicinal chemistry for building complex drug molecules. Commonly employed in coupling reactions and palladium-catalyzed cross-couplings to introduce the fluorinated indole scaffold into bioactive compounds. Also utilized in the preparation of analogs for structure-activity relationship studies in early-stage drug discovery.