Abstract
G protein-coupled receptor 52 (GPR52) is considered to be a promising target to improve the symptoms of psychiatric disorders and its agonists are expected to treat schizophrenia without traditional side effects. Several research institutions have reported some small molecule GPR52 agonists, which can be the starting point for rational drug development. In this study, a series of N-arylindole derivatives were designed and synthesized based on 3g according to classical pharmacochemical methods and computer aided drug design (CADD). The designed compounds exhibited good to excellent activities and the structure-activity relationship (SAR) study was explored. The results show that the connection mode between the hydrophilic head (Part I) and the indole ring (Part II) plays an important role in the GPR52 agonist activity. Among these compounds, compounds 16 and 21 have good GPR52 agonist activity (EC50 = 93 nM and 75 nM) and can inhibit hyperactive behavior in mice induced by MK-801 (EC50 =7.94 mg/kg and 6.64 mg/kg). These designed small molecules will provide new options for the development of novel GPR52 agonists.
Published Version
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