Used as a key intermediate in the synthesis of complex indole alkaloids and pharmaceutical agents. The presence of both formyl and protected hydroxyl groups allows for selective functionalization, enabling stepwise construction of multi-substituted indole derivatives. Commonly employed in medicinal chemistry for developing serotonin receptor modulators and kinase inhibitors. The Boc and benzyl protecting groups provide stability during reactions and can be removed under mild conditions, making it suitable for multi-step organic syntheses. Also applied in the preparation of tryptamine and tryptophan analogs with potential biological activity.