5-HT6/5-HT2AR antagonist-1 is a powerful and effective compound that acts as a dual antagonist for both the 5-HT6 and 5-HT2A receptors. It exhibits high potency with K i values of 11 nM and 39 nM for the respective receptors [1].
A1AR antagonist 4 (compound 22) is a highly developed chemical compound that acts as a potent and selective antagonist of the A1 adenosine receptor (A1AR). It possesses a pIC50 value of 5.51 and a pKi value of 6.29 [1].