Abstract:
:Phosphodiesterase 10 (PDE10) inhibitors have received much attention as promising therapeutic agents for central nervous system (CNS) disorders such as schizophrenia and Huntington's disease. Recently, a hit compound 1 with a novel chromone scaffold has shown moderate inhibitory activity against PDE10A (IC50 = 500 nM). Hit-to-lead optimization has resulted in compound 3e with an improved inhibitory activity (IC50 = 6.5 nM), remarkable selectivity (>95-fold over other PDEs), and good metabolic stability (RLM t1/2 = 105 min) by using an integrated strategy (molecular modeling, chemical synthesis, bioassay, and cocrystal structure). The cocrystal structural information provides insights into the binding pattern of 3e in the PDE10A catalytic domain to highlight the key role of the halogen and hydrogen bonds toward Tyr524 and Tyr693, respectively, thereby resulting in high selectivity against other PDEs. These new observations are of benefit for the rational design of the next generation PDE10 inhibitors for CNS disorders.
journal_name
ACS Chem Neuroscijournal_title
ACS chemical neuroscienceauthors
Yu YF,Zhang C,Huang YY,Zhang S,Zhou Q,Li X,Lai Z,Li Z,Gao Y,Wu Y,Guo L,Wu D,Luo HBdoi
10.1021/acschemneuro.0c00024subject
Has Abstractpub_date
2020-04-01 00:00:00pages
1058-1071issue
7issn
1948-7193journal_volume
11pub_type
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