Jiangsu Simcere Pharmaceutical Co. Ltd. has identified proteolysis targeting chimera (PROTAC) compounds comprising an E3 ubiquitin-protein ligase binding moiety coupled to an interleukin-1 receptor-associated kinase 4 (IRAK-4)-targeting moiety through a linker reported to be useful for the treatment of cancer, neurodegeneration, infections, autoimmune and inflammatory disorders.