(S)-PNU-282987 is the absolute stereochemistry form of PNU-282987. PNU 282987, a potent agonist of α7-containing neuronal nicotinic acetylcholine receptors (nAChRs) with Ki of 26 nM for the rat receptor, has negligible activity against α1β1γδ and α3β4 nAChRs as well as a panel of monoamine, glutamate, muscarinic,and GABA receptors, except 5-HT3 with Ki of 930 nM.