Tetrahydronaphthalenic derivatives as new agonist and antagonist ligands for melatonin receptors Original Research Article

Tetrahydronaphthalenic ligands were synthesized and evaluated as melatonin receptor ligands. Biological studies show that the aromaticity of the ring bearing the side chain is not essential for affinity and activity and that replacement of the methoxy group with the bioisostere ethyl which does not offer the possibility of H-bonding, leads to antagonist or forskoline potentiating properties.