investigations using the tetrabenazine derivative [ 2-3h ] dihydrotetrabenazine ( 2-hydroxy-3-isobutyl-9,10-dimethoxy-1,2,3,4,6 , 7-hexahydro-11b-h-benzo [ a ] quinolizine ) , which binds specially to the bovine chromaffin granule monoamine carrier indicated that granule membranes from the tumor have a 10-fold increased number of [ 2-3h ] dihydrotetrabenazine binding sites , with no change in dissociation constant .
C0039623
tetrabenazine
C0034429
quinolizine