Pomalidomide 5'-fluoro-6'-piperazine-4-methylpiperidine hydrochloride (ZJT1) is an E3 ubiquitin ligase cereblon based on Pomalidomide (HY-10984) (CRBN) ligand for recruitment of cereblon protein. Pomalidomide 5'-fluoro-6'-piperazine-4-methylpiperidine hydrochloride can be linked to protein ligand by linker to form PROTAC[1].