PF-04577806 is a potent, selective, and ATP competitive inhibitor of the protein kinase C (PKC). It exhibits significant inhibitory activity against various isoforms of PKC, including PKCα, PKCβI, PKCβII, PKCγ, and PKCθ, with IC50 values of 2.4 nM, 8.1 nM, 6.9 nM, 45.9 nM, and 29.5 nM, respectively. Furthermore, PF-04577806 has the ability to reverse retinal vascular leakage in diabetic rats.