Pochonin D is an inhibitor of heat shock protein 90 (Hsp90) with antiviral and anti-inflammatory properties. It disrupts Hsp90, affecting the stability, folding, and assembly of viral proteins, thereby diminishing viral replication. Additionally, Pochonin D reduces the infiltration of inflammatory cells and decreases the secretion of inflammatory cytokines such as TNF-α and IL-1β, alleviating inflammatory responses. This compound shows potential for research in human rhinovirus (HRV) infections and cancer.