PROTAC CARM1/IKZF3 degrader-1 (Compound 074) inhibits CARM1, reduces the methylation level of its substrate BAF155. PROTAC CARM1/IKZF3 degrader-1 is the PROTAC degrader for IKZF 1/3 through a CRBN-dependent pathway. PROTAC CARM1/IKZF3 degrader-1 inhibits the expression of MYC protein, thereby inhibiting the proliferation of a variety of multiple myeloma cells. PROTAC CARM1/IKZF3 degrader-1 induces apoptosis in cell H929. PROTAC CARM1/IKZF3 degrader-1 overcomes immunomodulatory drugs (IMiD, such as pomalidomide) resistance. PROTAC CARM1/IKZF3 degrader-1 can be used in cancer and immunology research[1]. (Pink: ligand for target protein CARM1/IKZF3 ligand 1 (HY-172369), Active form of target protein ligand: EZM 2302 (HY-111109), Black: linker (HY-21999), Blue: ligand for E3 ligase Cereblon Thalidomide 4-fluoride (HY-41547))