6'-Aminospiro[cyclopropane-1,3'-indolin]-2'-one is primarily utilized in pharmaceutical research and development, particularly in the synthesis of novel drug candidates. Its unique spirocyclic structure makes it a valuable scaffold for designing compounds with potential biological activity. It is often explored in the development of central nervous system (CNS) drugs, as its structure can interact with various neurotransmitter systems. Additionally, this compound is studied for its potential anticancer properties, as spirocyclic frameworks are known to exhibit cytotoxic effects on certain cancer cell lines. Researchers also investigate its use in creating enzyme inhibitors, leveraging its ability to bind selectively to target proteins. Overall, it serves as a versatile intermediate in medicinal chemistry for the discovery of new therapeutic agents.