摘要:
Direct comparison of pyridine versus pyrimidine substituents on a small but diverse set of ligands indicates that the pyrimidine substitution has the potential to enhance affinity and/or functional activity at alpha 6 subunit-containing neuronal nicotinic receptors (NNRs) and decrease activation of ganglionic nicotinic receptors, depending on the scaffold. The rami. cations of this structure-activity relationship are discussed in the context of the design of small molecules targeting smoking cessation. (C) 2009 Elsevier Ltd. All rights reserved.