JAK

JAK1-IN-9 (compound 23a) is a potent, selective inhibitor of JAK1, demonstrating an IC50 of 72 nM.

JAK3-IN-11: potent oral JAK3 inhibitor (IC50=1.7 nM), noncytotoxic, >588-fold selectivity, blocks T-cell growth; useful in autoimmune research.

JAK1-IN-19 (Compound 18) is a potent JAK1 inhibitor with IC50 values of 0.02 nM for JAK1, 0.5 nM for JAK2, 91 nM for JAK3, and 0.2 nM for TYK2. It demonstrates a higher intrinsic clearance in both rats and humans. JAK1-IN-19 is applicable for research into atopic dermatitis and other autoimmune diseases.

JAK3-IN-7 is a potent and selective JAK3 inhibitor (IC50<0.01 μM) for the treatment of rejection in organ transplantation, graft-versus-host reaction after

JDTic, a 4-phenylpiperidine derivative distantly related to analgesics like meperidine and ketobemidone and more closely to the mu opioid antagonist alvimopan, exhibits a notably long duration of action, maintaining effects in animals for weeks following a single dose. This duration is not due to irreversible binding to the kappa opioid receptor but rather to altered activity of c-Jun N-terminal kinases. As a highly selective antagonist for the κ-opioid receptor, without influencing the μ- or δ-opioid receptors, JDTic has shown potential in animal studies for producing antidepressant and anxiolytic effects. It also demonstrates promise in treating addiction to substances such as cocaine and morphine, distinguishing itself structurally from other kappa antagonists like norbinaltorphimine.