Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of central nervous system (CNS) agents. It serves as a building block for creating bioactive molecules due to its piperazine core, which is commonly found in drugs targeting neurological and psychiatric disorders. The tert-butyloxycarbonyl (Boc) group allows for selective protection during multi-step syntheses, enabling controlled modification of the piperazine ring. Its chlorophenyl substituent contributes to lipophilicity and receptor binding affinity, making it valuable in medicinal chemistry for optimizing drug candidates.