A series of benzisothiazolylpiperazine derivatives were synthesized.
Target compounds were evaluated affinities for D2, D3, 5-HT1A and 5-HT2A receptors.
The proming compound 9j had low affinities for M1 receptors and hERG channels.
9j showed in vivo activities in animal models with low potential for catalepsy.
9j displayed favorable brain penetration.