Widely used in pharmaceutical synthesis, particularly in the production of serotonin-related compounds and tryptamine derivatives. Its free hydroxyl group and protected indole nitrogen functionalities make it ideal for selective reactions in multi-step organic syntheses. Commonly employed in the development of central nervous system agents, including antidepressants and antipsychotics. The Boc group allows for easy deprotection under mild acidic conditions, enabling efficient chain elongation or cyclization in drug discovery. Also utilized in the preparation of natural product analogs and bioactive molecules requiring indole scaffolds.