| The high affinity, selective dopamine transporter ligand GBR 12909 has served as a template for the design of two novel classes of dopamine transporter ligands. A series of 3-[2-(diarylmethoxyethyidenyl)]-N-substituted tropane derivatives were synthesized and the binding affinities of these compounds were determined at the dopamine (DAT), serotonin (SERT) and norepinephrine (NET) transporters in rat brain tissue preparations. The tropane derivatives were found to exhibit more potent affinity and selectivity for DAT than GBR 12909. From the SAR of the tropane analogues and GBR 12909, a novel series of 3-[2-(diarylmethoxyethylidenyl)]-N-substituted azetidine derivatives has been developed.;Keywords: Dopamine, serotonin, norepinephrine, tropane, GBR 12909, azetidine. |
