Tandospirone (SM-3997) is a selective partial agonist of 5-HT1A receptor (Ki: 27 nM) that displays selectivity over SR-2, SR-1C, α1, α2, D1 and D2 receptors (Kis: 1300-41000 nM).

Tandospirone is essentially inactive at 5-HT1B receptors; 5-HT uptake sites; beta-adrenergic, muscarinic cholinergic, and benzodiazepine receptors [1]. 3H-SM-3997 bound rapidly, reversibly and in a saturable manner with high affinity to rat brain hippocampal membranes (Kd: 9.4 nM, Bmax = 213 fmol/mg protein) [2].

Chronic treatment with tandospirone, at 0.2 and 1.0mg/kg/day, but not 2.0mg/kg/day, attenuated footshock stress-induced eLAC elevation in the mPFC [3]. Rats were acutely administered tandospirone (0, 0.1, and 1 mg/kg, i.p.). Tandospirone decreased the number of premature responses, an index of impulsive action, in a dose-dependent manner [4].

87760-53-0

C21H29N5O2

383.49

坦度螺酮;SM-3997;Tandospirone

H2O:Insoluble
DMSO:30 mg/mL
Powder: -20°C for 3 years
In solvent: -80°C for 2 years