Synthesis and pharmacological evaluation of new 5-(cyclo)alkyl-5-phenyl- and 5-spiroimidazolidine-2,4-dione derivatives. Novel 5-HT1A receptor agonist with potential antidepressant and anxiolytic activity
agonistic activity, respectively, toward 5-HT1A receptor and they were investigated as potential antidepressants and/or anxiolytics. The most interesting compound 22 (1-[3-(4-(2-methoxyphenyl)piperazin-1-yl)propyl]-3′,4′-dihydro-2′H-spiro[imidazolidine-4,1′-naphthalene]-2,5-dione), a pre- and postsynaptic 5-HT1A receptor agonist produced an antidepressant-like effect, which was more pronounced than that of