5-HT1AR Agonist 2 (Compound 4f) is a potent agonist of the 5-HT1A receptor with a Ki value of 10.0 nM. It also binds to SERT, D2, and 5-HT6 receptors with Ki values of 2.8 nM, 23 nM, and 192 nM, respectively. Furthermore, this compound demonstrates stability in microsomes and induces hypothermia in mice.