Used in organic synthesis as a boronic ester coupling partner in Suzuki-Miyaura cross-coupling reactions to construct biaryl or heteroaryl frameworks. Its pyrazole and pyrrolidinone moieties make it valuable in medicinal chemistry for developing bioactive molecules and kinase inhibitors. The boronate group allows for mild, selective transformations, enabling late-stage functionalization in drug discovery. It is also employed in materials science to build conjugated systems for optoelectronic applications.