Potent inhibitor of tyrosine kinase 2 (TYK2, Ki = 1.6 nM). Shows some selectivity for TYK2 over JAK1/2/3. Inhibits IFNγ production in vivo in mice. Orally bioavailable.
Liang et al (2013) Lead optimization of a 4-aminopyridine benzamide scaffold to identify potent, selective, and orally bioavailable TYK2 inhibitors. J.Med.Chem. 56 4521 PMID:23668484