IKZF2-degrader 5 is a highly efficient, highly selective, rapidly acting, and orally active IKZF2 molecular glue degrader. IKZF2-degrader 5 induces IKZF2 degradation via the Cullin-CRBN-dependent pathway. IKZF2-degrader 5 promotes the production of pro-inflammatory IL-2. IKZF2-degrader 5 attenuates the immunosuppressive function of regulatory T cells (Tregs). IKZF2-degrader 5 triggers rapid, significant, and sustained IKZF2 degradation in the spleen and thymus of mice. IKZF2-degrader 5 inhibits tumor growth. IKZF2-degrader 5 can be used for the research of B16F melanoma[1].