Used as a key intermediate in the synthesis of certain fluoroquinolone antibiotics, particularly those targeting bacterial DNA gyrase and topoisomerase IV. Its structure allows for potent antimicrobial activity against a broad spectrum of Gram-positive and Gram-negative bacteria. The compound's piperazinyl and phenylpropanoyl moieties enhance cell penetration and binding affinity, making it valuable in developing anti-infective agents with improved pharmacokinetics and reduced resistance development. It is primarily employed in pharmaceutical research and development for novel quinolone-based therapeutics.