PROTAC erf3a Degrader-2 (Compound C59) is an orally active PROTAC erf3a Degrader. PROTAC erf3a Degrader-2 inhibits protein expression of SRD5A3 and GSPT1(eRF3a). PROTAC erf3a Degrader-2 inhibits cancer cell proliferation (eg: 22Rv1). PROTAC erf3a Degrader-2 can be used for research of prostate cancer , ovarian cancer , liver cancer , cervical cancer , leukemia, breast cancer. (Red: erf3a ligand ; Black: linker ; Blue: E3 ligase ligand ).