Spiro[cyclopropane-1,3'-indolin]-2'-one is a compound of interest in medicinal chemistry due to its unique spirocyclic structure. It serves as a key intermediate in the synthesis of various biologically active molecules. Its applications include the development of potential therapeutic agents targeting neurological disorders, such as Alzheimer's disease, due to its ability to modulate specific enzymes or receptors in the brain. Additionally, it is explored in the design of anticancer drugs, as its structural framework can be modified to interact with cellular pathways involved in tumor growth. Researchers also utilize this compound in the creation of novel anti-inflammatory and antimicrobial agents, leveraging its chemical versatility to enhance drug efficacy and selectivity. Its spirocyclic nature contributes to improved metabolic stability and bioavailability, making it a valuable scaffold in drug discovery.