Deramciclane has high affinity for 5-HT2A and 5-HT2C receptors. It acts as an antagonist in both receptor subtypes and has inverse agonist properties for 5-HT2C receptors, but no direct stimulant agonists.
AZD-8529 is a highly selective, and orally bioavailable positive allosteric modulator of mGluR2 (EC50: 285 nM). It shows no positive allosteric modulator responses at 20-25 M on the mGluR1, 3, 4, 5, 6, 7, and 8 subtypes.