Spiro[indene-1,4'-piperidine]-3-carboxylic acid is primarily utilized in the field of medicinal chemistry as a key intermediate in the synthesis of various pharmaceutical compounds. Its unique spirocyclic structure makes it a valuable building block for developing molecules with potential biological activity. It is often employed in the design and synthesis of drug candidates targeting central nervous system disorders, such as anxiety, depression, and neurodegenerative diseases. Additionally, its structural framework is explored in the development of inhibitors for specific enzymes or receptors, contributing to the advancement of therapeutic agents. Researchers also investigate its potential in creating novel compounds with anti-inflammatory or analgesic properties, making it a versatile component in drug discovery pipelines.