Bivalent ligand approach on N-{2-[(3-methoxyphenyl)methylamino]ethyl}acetamide: Synthesis, binding affinity and intrinsic activity for MT1 and MT2 melatonin receptors
intrinsic activity at MT1 and MT2 melatoninreceptors of new dimeric melatoninreceptor ligands in which two units of the monomeric agonist N-2-[(3-methoxyphenyl)methylamino]ethyl}acetamide (1) are linked together through different anchor points. Dimerization of compound 1 through the methoxy substituent leads to a substantial improvement in selectivity for the MT1 receptor, and to a partial agonist behavior