pf 04671536

PF-04671536 is a highly potent and selective inhibitor of phosphodiesterase 8B (PDE8B) phosphodiesterase 8A (PDE8A). In primary human pancreatic islets, PF-04671536 increases insulin secretion in a glucose-dependent manner.

Potent and selective PDE8B/8A inhibitor ( IC50 values are 1.3 and 1.9 nM, respectively). Exhibits selectivity for PDE8A/B over other PDEs (IC50 values are >10 μM) and a range of other targets. Increases glucose-dependent insulin secretion from human pacreatic islet cells. Orally bioavailable. DeNinno et al (2012) Discovery of triazolopyrimidine-based PDE8B inhibitors: exceptionally ligand-efficient and lipophilic ligand-efficient compounds for the treatment of diabetes. Bioorg.Med.Chem.Lett. 22 5721 PMID:22858141