ST3932 is a ST1535 metabolite, is a adenosine A2A receptor antagonist(Kis of 8 nM and 33 nM for A2A and A1 receptors, respectively).

A2A receptor:ki： 8 nM , A1 receptor:33 nM (ki)

ST3932 is a ST1535 metabolite, acts as an adenosine A2A receptor antagonist(Kis of 8 nM and 33 nM for A2A and A1 receptors, respectively). ST3932 inhibits agonist-induced cAMP accumulation(IC50 : 450 nM).

In mice, Haloperidol-induced catalepsy antagonized by ST3932 (10, 20, 40 mg/kg, p.o.), and increases motor activity . ST3932 (20, 40 mg/kg, i.p.) significantly increases the number of contralateral turns induced by l-DOPA in rats.