ITK degrader 1 - HY-149917

ITK degrader 1 is a highly selective degrader of interleukin-2-inducible T-cell kinase (ITK; DC50=3.6 nM in vivo in mice), with good plasma exposure levels. ITK degrader 1 induces rapid, and prolonged ITK degradation and suppresses IL-2 secretion (EC50=35.2 nM, Jurkat cells) stimulated by anti-CD3 antibodyin vivo. ITK degrader 1 consists of target protein ligand (red part) ITK ligand 1 (HY-168387), PROTAC linker (black part) Piperidine-C2-piperazine-Boc (HY-168388) and E3 ubiquitinase ligand (blue part) Thalidomide 5-fluoride (HY-W087383). E3 ubiquitinase and PROTAC linker can form Thalidomide-piperidine-C2-piperazine-Boc (HY-168389)[1].