BTK-IN-31 (Compound 2), a selective and non-covalently reversible Btkinhibitor, is permeable to the blood-brain barrier (BBB). This compound shows research potential for treating a variety of conditions, including immune disorders, cancer, cardiovascular disease, viral infections, inflammation, metabolic endocrine dysfunction, and neurological disorders [1].
Lenalidomide-PEG3-iodine, an E3 ligase ligand-linker conjugate, consists of a cereblon-based Lenalidomide ligand and a 3-unit polyethylene glycol (PEG) linker. This compound is utilized in creating various proteolysis targeting chimeras (PROTACs), including the highly effective PROTAC BTK degrader SJF620, which has a degradation concentration 50 (DC50) of 7.9 nM[1].