GSK-626616产品是GSK-626616 is a potent and selective DYRK inhibitor (IC₅₀ = 0.7 nM); inhibits other members of the DYRK family, e.g., DYRK1A and DYRK2, with similar potency. Displays ~20-fold selectivity over casein kinase 2 and negligible activity against a panel of 451 kinases screened.