Design and Synthesis of <i>N</i>-(3,3-Diphenylpropenyl)alkanamides as a Novel Class of High-Affinity MT<sub>2</sub>-Selective Melatonin Receptor Ligands
A novel series of melatoninreceptorligands was discovered by opening the cyclic scaffolds of known classes of high affinity melatoninreceptor antagonists, while retaining the pharmacophore elements postulated by previously described 3D-QSAR and receptor models. Compounds belonging to the classes of 2,3- and [3,3-diphenylprop(en)yl]alkanamides and of o- or [(m-benzyl)phenyl]ethyl-alkanamides were