5-HT2A receptor agonist-13 (Compound 28c) is a partial agonist of the 5-HT2A receptor, with an EC50 value of 416.9 nM and a Ki value of 113.9 nM. 5-HT2A receptor agonist-13 exhibits very weak agonistic activity towards the 5-HT2B receptor (EC50 = 120.2 nM), D2 receptor (Ki = 1298 nM), and has no activity towards the 5-HT2C receptor. 5-HT2A receptor agonist-13 exhibits weak inhibitory activity on the serotonin transporter (SERT) (EC50 = 977.2 nM). 5-HT2A receptor agonist-13 has antidepressant activity in mouse models and does not induce hallucinogenic behavior. 5-HT2A receptor agonist-13 can be used for the study of major depressive disorder (MDD) and treatment-resistant depression (TRD)[1].
