Tetrahydropapaveroline
Tetrahydropapaveroline (norlaudanosoline) is a benzyltetrahydroisoquinoline alkaloid. It can be formed in trace amounts in the brain by a condensation reaction of dopamine and dopaldehyde (a metabolite of dopamine). It inhibits dopamine uptake within the cerebral cortex. References Dopamine reuptake inhibitors Tetrahydroisoquinolines Catechols