Figure 6

Drug candidates with unsubstituted alpha position of BPA. Panel (A) Cell viability (MTT assay) following exposure to modified variants of PP1 with unsubstituted alpha position of BPA (25 μM, for 72 hrs). Panel (B) CV = Cell viability (% of control) mean ± SD at 25 μM; ClogP = calculated partitioning; HBD = hydrogen bond donor at pH = 7; HBA = hydrogen bond acceptor at pH = 7; ClogBB = calculated blood-brain partition; PSA = Polar surface area (Å2); MPA = Minimal projection area (Å2); LogS = Aqueous solubility (mg/ml); MPO = Central nervous system multiparameter optimization (CNS MPO).