Synthetic methods were developed for the synthesis of the 3
-(4-substituted phenyl)-2
-[5-(substitutedphenyl)thiazol-2-yl]tropanes (
4a-
s). The compounds were evaluated for their monoamine transporter binding
and monoamine uptake inhibition properties using both rat brain tissue
and cloned transporter assays.
Ingeneral, the compounds showed higher dopamine transporter (DAT) affinity relative to the serotonin
andnorepinephrine transporters (SERT
and NET, respectively)
and greater [
3H]dopamine uptake inhibition potencyrelative to [
3H]serotonin
and [
3H]norepinephrine uptake inhibition. Several compounds were DAT selectiverelative to the SERT
and NET in the monoamine transporter binding assays. The most potent
and selectiveanalog in the functional monoamine uptake inhibition test was 3
-(4-methylphenyl-2
-[5-(3-nitrophenyl)thiazol-2-yl]tropane (
4p).